CN103597777A - Measuring system - Google Patents

Abstract

This measuring system is provided with extension units for weighing physical quantities, and a main unit that communicates with the extension units and collects the physical quantities from the extension units. The main unit is configured in such a manner that identification signals are transmitted to the extension units, which are connected to the main unit. The extension units are configured in such a manner that when an identification signal is received, a communication address corresponding to the status of the received identification signal is stored in an address setting unit, and a status identification signal that differs to the received identification signal, is transmitted to a separate extension unit which is connected to the aforementioned extension unit. The aforementioned extension unit is configured in such a manner as to use the communication address stored in the address setting unit to communicate with the main unit.

Description

Measuring system

Technical field

The present invention relates to a kind of measuring system.

Background technology

In recent years, at industrial circle economize on electricityization development.Measure termly and use electric power amount, this measured value is notified to economize on electricitys as far as possible of promotion use electric power amount thus such as practitioners, this consciousness is permeated dearly in office, factory.As this measurement, use the device of electric power amount, in the past, realize following a kind of measuring system: by using using the parts of setting up of electric power amount to be connected to the resulting measurement component of main element for measuring, can expand and measure the function of using electric power amount.

Figure 26 means the block diagram of the internal structure of measurement component in the past.This measurement component is configured to and comprises main element 1105 and a plurality of parts 1106,1107 of setting up.Main element 1105 is configured to and comprises power supply unit 1151, data communication section 1152, handling part 1153, data output section 1154 and the Data Management Department 1155 that AC voltage conversion can be provided for direct voltage.

Power supply unit 1151 can be direct voltage by the AC voltage conversion providing from AC power supplies 1115, via 1158 pairs of main elements 1105 of power line with respectively set up parts 1106,1107 direct voltage is provided, make main element 1105 and respectively set up parts 1106,1107 and can move.Data communication section 1152 is in order to collect measurement data via data telecommunication line (communication port) 1152a from respectively setting up parts 1106,1107, with the polling communication of respectively setting up parts 1106,1107 and carry out 1 couple of N.

Data Management Department 1155 will store inner storage medium into from setting up each measurement data that parts 1106,1107 collect.Data output section 1154 have make LCD (Liquid Crystal Display: liquid crystal display) or LED (Light Emitting Diode: light-emitting diode) etc. the Presentation Function of display element display measurement data, to the medium output function of the output measurement data such as storage card and the second data communication function of communicating.

Handling part 1153 carries out the action of collecting measurement data ,Shi Data Management Department 1155 storage of measurement data, making data output section 1154 export measurement data and so on from respectively setting up parts 1106,1107 via data communication section 1152.

On the other hand, set up parts 1106 and be configured to data communication section 1162, handling part 1163, transducer portion 1164 and the address setting portion 1165 of comprising.Handling part 1163 is according to carrying out computation and measurement data by the detected current value of CT transducer 1112 being connected with transducer portion 1164.In address setting portion 1165, by dual-in-line (DIP) switch, set mailing address.Data communication section 1162, according to the polling communication from main element 1105, is exported the measurement data being calculated by handling part 1163.In addition, set up parts 1107 and there is the structure identical with setting up parts 1106, carry out same action.

In addition, as this measuring system, known a kind of following measuring system illustrating (for example, No. 2006-94102nd, reference literature 1[Japanese Patent Publication communique]).In this measuring system, for be set to the terminal installation of the virtual address of the virtual address predetermining under initial condition, monitor together with the terminal installation of the address that control device is stored with address list it and send polling signal.

In response to this, when the terminal installation from virtual address receives return signal, monitor the idle address beyond control device judgement virtual address, using this free time address as address of record, be sent to the terminal installation of virtual address and rewrite address together with address setting signal.Thus, in when construction, while appending terminal installation, even if differ, one manually set the address of this terminal installation, also terminal installation easily can be appended to system.

Yet, in above-mentioned measuring system in the past, there is following problem.For example, in the measuring system of Figure 11, in the situation that distribute intrinsic mailing address to respectively setting up parts, with dual-in-line switch, manually set under many circumstances.Therefore, producing operating personnel distributes the wrong situation of the artificial settings such as same communication address many to other extension set.For example, the construction operation that the measuring systems such as operating personnel of parts are set up in a plurality of operating personnel's took turns in watchings settings becomes miscellaneous.

In addition, in the measuring system of document 1, the virtual address that is pre-set in terminal installation need to be set in to supervision control device under initial condition.Therefore, with the measuring system of Figure 27 similarly, likely produce the artificial mistake of setting.

Summary of the invention

The object of the present invention is to provide and a kind ofly to a plurality of extension sets, can set reliably the measuring system of intrinsic mailing address separately.In more detail, the object of the present invention is to provide and a kind ofly from agent set, when one or more extension set is collected each measurement data, setting simply the measuring system for the intrinsic mailing address of extension set.

The measuring system of first method involved in the present invention possesses: extension set, its measure physical quantities; And agent set, itself and above-mentioned extension set communicate and collect above-mentioned physical quantity from above-mentioned extension set.Aforementioned body device possesses for connecting the first connecting portion and first handling part of above-mentioned extension set.Above-mentioned extension set possesses the second connecting portion, the second handling part and the address setting portion for connecting other extension set, use the storage of this address setting portion for and aforementioned body device between the mailing address of unicast communication.The above-mentioned extension set that above-mentioned the first handling part is configured to being connected with above-mentioned the first connecting portion sends identification signal.Above-mentioned the second handling part is configured to and when receiving above-mentioned identification signal, makes the address above mentioned configuration part storage above-mentioned mailing address corresponding with the state of the identification signal receiving, and the identification signal of the identification signal different conditions with receiving is sent to the above-mentioned extension set being connected with above-mentioned the second connecting portion.

The measuring system of second method involved in the present invention possesses: extension set, its measure physical quantities; And agent set, itself and above-mentioned extension set communicate and collect above-mentioned physical quantity from above-mentioned extension set.Aforementioned body device possesses connecting portion, the first handling part being connected with order wire and is connected test section.Above-mentioned extension set possesses the second handling part and address setting portion, use the storage of this address setting portion for and aforementioned body device between the mailing address of unicast communication.Above-mentioned connection test section is configured to and detects being connected of above-mentioned extension set and above-mentioned order wire.Above-mentioned the first handling part is configured to when above-mentioned connection test section detects above-mentioned connection above-mentioned order wire is sent to above-mentioned mailing address.Above-mentioned the second handling part is configured to the mailing address that makes address above mentioned configuration part storing received arrive when receiving above-mentioned mailing address.

The measuring system of Third Way involved in the present invention is in second method, and above-mentioned the second handling part has the intrinsic numbering that is dispensed to above-mentioned extension set.Above-mentioned the first handling part is configured to the corresponding relation of the above-mentioned intrinsic numbering of storage and above-mentioned mailing address.

The measuring system of cubic formula involved in the present invention be second or Third Way in, above-mentioned the first handling part is configured to when above-mentioned connection test section detects above-mentioned connection above-mentioned order wire is sent to request signal.Above-mentioned the second handling part is configured to when receiving above-mentioned request signal and is sent to above-mentioned order wire by comprising the solid numbered answer signal that is dispensed to above-mentioned extension set.Above-mentioned the first handling part is configured to and when receiving above-mentioned answer signal, makes above-mentioned mailing address corresponding with the above-mentioned intrinsic numbering of the answer signal receiving.

The measuring system of the 5th mode involved in the present invention is in cubic formula, above-mentioned extension set is configured to be had for connecting the second connecting portion of second extension set different from above-mentioned extension set, and above-mentioned extension set is connected above-mentioned the second extension set being connected with above-mentioned the second connecting portion via above-mentioned order wire with the above-mentioned connecting portion of aforementioned body device.

The measuring system of the 6th mode involved in the present invention is in the 5th mode, and above-mentioned extension set also possesses the second connection test section.Above-mentioned the second connection test section is configured to and judges whether above-mentioned the second connecting portion is connected with above-mentioned the second extension set.Above-mentioned the second handling part is configured to when above-mentioned second connects test section and be judged as above-mentioned the second connecting portion and be connected with above-mentioned the second extension set, will set up detection information and be sent to aforementioned body device.Above-mentioned the first handling part is configured to when receiving the above-mentioned above-mentioned mailing address of above-mentioned the second extension set being used while setting up detection information and is sent to above-mentioned order wire.

The measuring system of the 7th mode involved in the present invention is that above-mentioned extension set also possesses switching part in the 5th mode, and this switching part is for making the path between above-mentioned order wire and above-mentioned the second connecting portion open and closed.Above-mentioned the second handling part is configured to closed above-mentioned switching part after above-mentioned answer signal is sent to aforementioned body device and above-mentioned the second connecting portion is connected with above-mentioned order wire.If above-mentioned the first handling part is configured to from sending above-mentioned request signal and does not also receive above-mentioned answer signal through the stipulated time, finish the transmission of above-mentioned request signal.

The measuring system of all directions formula involved in the present invention is in the either type in the first～seven mode, and aforementioned body device possesses: power supply unit, and it provides electric power to the above-mentioned extension set being connected with aforementioned body device; Information acquisition unit, it obtains the power information relevant with the above-mentioned extension set that is connected in aforementioned body device; And control unit.Above-mentioned control unit is according to the above-mentioned power information being got by above-mentioned information acquisition unit, obtain the above-mentioned extension set that makes to be connected with above-mentioned power supply unit and move the first required electric power, if above-mentioned the first electric power exceeds the higher limit that above-mentioned power supply unit can offer the second electric power of above-mentioned extension set, above-mentioned control unit is not powered from above-mentioned power supply unit, and when above-mentioned the first electric power does not exceed above-mentioned higher limit, above-mentioned control unit is not powered from above-mentioned power supply unit.

The measuring system of the 9th mode involved in the present invention is in the formula of all directions, and above-mentioned extension set possesses the Information preservation unit that keeps above-mentioned power information.Above-mentioned power information means the information of the power consumption of above-mentioned extension set.Above-mentioned information acquisition unit is configured to from above-mentioned Information preservation unit and obtains above-mentioned power information.

The measuring system of the tenth mode involved in the present invention is in the 9th mode, and above-mentioned Information preservation unit is the resistive element with the resistance value corresponding with above-mentioned power consumption.Above-mentioned information acquisition unit is configured to by detecting with the corresponding physical quantity of resistance value of above-mentioned resistive element and obtains above-mentioned power information.

The measuring system of the 11 mode involved in the present invention is in the 9th mode, and above-mentioned power information means the information of the current sinking of above-mentioned extension set.Above-mentioned Information preservation unit is the resistive element with the resistance value corresponding with above-mentioned current sinking.Above-mentioned information acquisition unit is configured to by detecting with the corresponding physical quantity of resistance value of above-mentioned resistive element and obtains above-mentioned information.

The measuring system of the 12 mode involved in the present invention is in the tenth or the 11 mode, and above-mentioned information acquisition unit is connected with a pair of information wire.Above-mentioned extension set is configured to above-mentioned resistive element when being connected with aforementioned body device and is connected between above-mentioned a pair of information wire.Above-mentioned information acquisition unit is configured to the size of electric current mobile when applying constant voltage between above-mentioned a pair of information wire and obtains above-mentioned power information.

The measuring system of the 13 mode involved in the present invention is that above-mentioned extension set also possesses in the formula of all directions: communication unit, and itself and aforementioned body device communicate; Measuring unit, it measures above-mentioned physical quantity; Switch unit, it is for making circuit open and the closure between above-mentioned power supply unit and above-mentioned measuring unit; And memory cell.Said memory cells is configured to electric power and the total electric power of measuring with electric power for storing communication.Above-mentioned communication electric power is that above-mentioned extension set carries out the required electric power of communication process of communicating by letter with aforementioned body device by above-mentioned communication unit.Above-mentioned measurement electric power is that required electric power is processed in the measurement that above-mentioned extension set carries out measuring by above-mentioned measuring unit above-mentioned physical quantity.Above-mentioned power information means the information of electric power for above-mentioned communication.Aforementioned body device is configured to and communicates with above-mentioned extension set and obtain the above-mentioned total electric power that said memory cells is stored.Above-mentioned control unit is configured to according to the above-mentioned total electric power getting from above-mentioned extension set, and the above-mentioned extension set that above-mentioned measurement processing is carried out in selection in the scope that does not exceed above-mentioned higher limit sends and drives signal selected above-mentioned extension set.Above-mentioned amplifying device is configured to and when receiving above-mentioned driving signal by above-mentioned communication unit, controls the next closed foregoing circuit of above-mentioned switch unit.

The measuring system of the tenth cubic formula involved in the present invention is that in the either type in the first～seven mode, aforementioned body device possesses power supply unit, and this power supply unit pair above-mentioned extension set being connected with aforementioned body device provides electric power.Above-mentioned extension set possesses: switch unit, and it is arranged at the electric channel that supplies from above-mentioned power supply unit to other extension set, for making above-mentioned power supply channel opener and closure; And supply control unit.The above-mentioned mailing address that above-mentioned supply control unit is stored according to address above mentioned configuration part judges that the maximum quantity of the above-mentioned the extension set whether quantity of the above-mentioned extension set being connected with aforementioned body device can be connected with aforementioned body device equates, if the maximum quantity of the above-mentioned extension set that the quantity of the above-mentioned extension set being connected with aforementioned body device can be connected with aforementioned body device equates, the closed above-mentioned switch unit of above-mentioned supply control unit, if the quantity of the above-mentioned extension set being connected with aforementioned body device is less than the maximum quantity of the above-mentioned extension set that aforementioned body device can be connected, above-mentioned supply control unit is opened above-mentioned switch unit.

The measuring system of the 15 mode involved in the present invention is in the tenth cubic formula, and above-mentioned extension set also possesses detecting unit and power supply stop element.Above-mentioned detecting unit is configured to and judges whether above-mentioned extension set is connected with other extension set.Above-mentioned power supply stop element is configured to when being judged as above-mentioned extension set and not connecting other extension set, cuts off the circuit between above-mentioned power supply unit and above-mentioned other extension set.

The measuring system of the 16 mode involved in the present invention is in first method, and above-mentioned the second handling part is configured to the storage a plurality of above-mentioned mailing address corresponding with a plurality of states difference of above-mentioned identification signal.Above-mentioned the second handling part is configured to the corresponding above-mentioned mailing address of state of selecting from above-mentioned a plurality of mailing addresses when receiving above-mentioned identification signal with the identification signal receiving.

The measuring system of the 17 mode involved in the present invention is in the first or the 16 mode, and aforementioned body device has Data Management Department.Above-mentioned Data Management Department is configured to the storage a plurality of above-mentioned mailing address corresponding with a plurality of states difference of above-mentioned identification signal.Aforementioned body device is configured to be selected mailing address and will specify the acknowledges requests signal of selected mailing address to be sent to above-mentioned extension set above-mentioned a plurality of mailing addresses of storing from above-mentioned Data Management Department.If it is consistent that above-mentioned extension set is configured to the above-mentioned mailing address of being stored with address above mentioned configuration part by the specified above-mentioned mailing address of above-mentioned acknowledges requests signal, by comprising the solid numbered answer signal that is dispensed to above-mentioned extension set, be sent to aforementioned body device.Aforementioned body device is configured to and when receiving above-mentioned answer signal, makes selected above-mentioned mailing address corresponding with the above-mentioned intrinsic numbering of the answer signal receiving.

The measuring system of the tenth all directions formula involved in the present invention is in the first, the 16 or the 17 mode, the rule that above-mentioned the second handling part is configured to when receiving above-mentioned identification signal according to the rules converts the identification signal receiving, and generates thus the identification signal with the identification signal different conditions receiving.

The measuring system of the 19 mode involved in the present invention is in the tenth all directions formula, even the rule of afore mentioned rules is determined also not have the identification signal of equal state for identification signal is converted to several times.

The measuring system of the 20 mode involved in the present invention is in the 19 mode, and above-mentioned identification signal is logical signal.The rule of afore mentioned rules is the duty ratio that reduces or increase above-mentioned logical signal.

The measuring system of the 21 mode involved in the present invention is in the 19 mode, and above-mentioned identification signal is pulse signal.The rule of afore mentioned rules is the umber of pulse that reduces or increase above-mentioned pulse signal.

The measuring system of the 22 mode involved in the present invention is in the 19 mode, and above-mentioned identification signal is analog signal.The rule of afore mentioned rules is to reduce or improve the magnitude of voltage of above-mentioned analog signal.

The measuring system of the 23 mode involved in the present invention is in the 19 mode, and above-mentioned identification signal is data-signal.The rule of afore mentioned rules is the parameter that reduces or increase above-mentioned data-signal.

Accompanying drawing explanation

Fig. 1 means the block diagram of internal structure of the measuring system of execution mode 1.

Fig. 2 means the system construction drawing of structure of the power measurement system of the measuring system that comprises execution mode 1.

Fig. 3 means the chart of the register content of the admin table of registering in the Data Management Department in the measuring system of execution mode 1.

Fig. 4 is the sequential chart of action of the measuring system of explanation execution mode 1.

Fig. 5 is the flow chart of the assign action process of the main element in explanation execution mode 1.

Fig. 6 is the flow chart of the course of action of setting up parts in explanation execution mode 1.

Fig. 7 is the flow chart that the measurement data of the main element in explanation execution mode 1 is collected course of action.

Fig. 8 is the flow chart that the measurement data of setting up parts in explanation execution mode 1 is collected course of action.

Fig. 9 means the block diagram of internal structure of the measurement component of execution mode 2.

Figure 10 means the table of the mailing address that the logical signal different from duty ratio managed accordingly.

Figure 11 means the table of the mailing address that the pulse signal different from umber of pulse managed accordingly.

Figure 12 means the table of the mailing address that the analog signal different from magnitude of voltage managed accordingly.

Figure 13 means the table of the mailing address that the data-signal different from parameter managed accordingly.

Figure 14 is the flow chart of the assign action process of setting up parts in explanation execution mode 2.

Figure 15 is the flow chart that the measurement data of the main element in explanation execution mode 2 is collected course of action.

Figure 16 is the flow chart of the course of action of setting up parts in explanation execution mode 2.

Figure 17 is the system construction drawing of the measuring system of execution mode 3.

Figure 18 is the block diagram of the information retaining section in the measuring system of execution mode 3.

Figure 19 means the system construction drawing of the measuring system of execution mode 4.

Figure 20 is the system construction drawing of the measuring system of execution mode 5.

Figure 21 is the block diagram of the address generation portion in the measuring system of execution mode 5.

Figure 22 means the circuit diagram of the detecting unit in the measuring system of execution mode 5.

Figure 23 means the system construction drawing of the measuring system of execution mode 6.

Figure 24 means the system construction drawing of the first variation of the measuring system of execution mode 6.

Figure 25 means the system construction drawing of the second variation of the measuring system of execution mode 6.

Figure 26 means the block diagram of the internal structure of measuring system in the past.

Embodiment

The present invention relates to a kind of measuring system.Particularly, the present invention relates to a kind of measuring system that the physical quantitys such as electric power amount, temperature, humidity are measured.In other words, the measuring system that the present invention relates to a kind of extension set that comprises measurement data and collect the agent set of the data that measured by extension set.

With reference to the accompanying drawings of the execution mode of measuring system involved in the present invention.Measuring system involved in the present invention for example can be applied to carry out the power measurement system (being also called multicircuit energy monitoring system) of the measurement of power value.

(execution mode 1)

Fig. 2 means the system construction drawing of structure of the power measurement system of the measuring system that comprises execution mode 1.This power measurement system is configured to the main element 5 that comprises as agent set (gathering-device), as two of each extension set (measurement mechanism), sets up parts 6,7 and PC (personal computer) 9.As shown in Figure 2, from 15 pairs of main elements 5 of AC power supplies, provide alternating voltage.

Setting up parts 6 is connected with main element 5 via cable 17.The parts 7 of setting up of setting up parts 6 rear classes are connected with the parts 6 of setting up of prime via cable 18.From setting up parts 7, the parts (not shown) of setting up of rear class are connected with the parts 7 of setting up of prime via cable similarly.Cable 17,18 comprises power line described later, data telecommunication line (communication port) or connects detection line etc.

Main element 5 by and respectively set up between parts 6,7 and carry out polling communication, be collected in and respectively set up each measurement data measuring in parts 6,7.In addition, 5 pairs of main elements are respectively set up parts 6,7 and are set respectively intrinsic mailing address.

Respectively set up CT (the Current Transformer: power pack) transducer 12,13 that current value that parts 6,7 are connected with respectively convection current overload detects.Set up parts 6,7 according to calculating and use electric power amount by CT transducer 12,13 detected current values, the use electric power amount calculating is outputed to main element 5 as measurement data.

PC9 is used the measurement data of the use electric power amount sending from main element 5, carries out with user the corresponding various analyses of the operation of PC9 and management.

Fig. 1 means the block diagram of internal structure of the measuring system of execution mode 1.This measuring system is configured to and comprises that main element 5 and two set up parts 6,7.As form execution mode 1 measuring system set up parts, in Fig. 1, for example illustrate two and set up parts 6,7, but can connect three above parts of setting up according to the specification of the quantity of the load as measuring object or measuring system.In addition, convenient for the purpose of, in the measuring system of Fig. 1 or Fig. 2, by from main element 5, in downstream, be connected successively set up parts be called set up components A, set up part B, set up parts C ...For example, in Fig. 1, set up parts 6 and be connected with the downstream (rear class) of main element 5, set up parts 7 and be connected with the downstream (rear class) of setting up parts 6.

As shown in Figure 1, main element 5 is configured to and comprises that power supply unit 51, data communication section 52, the handling part (the first handling part) 53 as dispenser, data output section 54, Data Management Department 55 and conduct connect the connection detection circuit 56 of test section.

Power supply unit 51 is direct voltage by the AC voltage conversion providing from AC power supplies 15, via 58 pairs of main elements 5 of power line with respectively set up parts 6,7 direct voltage is provided, makes main element 5 and respectively sets up parts 6,7 and can move.

Data communication section 52 is in order to collect measurement data via data telecommunication line (communication port) 52a, with the polling communication of respectively setting up parts 6,7 and carry out 1 couple of N.

Data Management Department 55 has the admin table 55a of poll address, intrinsic numbering and set point.Fig. 3 means the table of the register content of the admin table 55a of registration in Data Management Department 55.In the present embodiment, in admin table 55a, for each, set up parts poll address, intrinsic numbering and set point (example: rated value).Intrinsic numbering is to identify each character of setting up parts, numeral, mark or their combination etc.As set point, be not limited to rated value, such as being also and setting up kind of the transducer that parts are connected etc.

For example,, in the admin table 55a of Fig. 3, to setting up components A poll address " 0011 ", intrinsic numbering " AABB ", rated value " 500KW ".To setting up part B poll address " 0101 ", intrinsic numbering " ABCC ", rated value " 1500KW ".To setting up parts C poll address " 0111 ", intrinsic numbering " BCAA ", rated value " 800KW ".

In addition, Data Management Department 55 will store inner storage medium into from setting up each measurement data that parts 6,7 collect.Static RAM), EEPROM (Electrically Erasable Programmable Read-Only Memory: EEPROM (Electrically Erasable Programmable Read Only Memo)) or FlashROM (Flash Read-Only Memory: flash ROM) etc. in this storage medium, use SRAM (Static Random Access Memory:.

Data output section 54 has Presentation Function and the medium output function to output measurement data such as storage cards of display measurement data in the display elements such as LCD or LED.Data output section 54 has the second data communication function communicating by communication modes such as RS-232C, RS-485, Ethernet (registered trade mark).

Handling part 53 carries out the action of collecting each measurement data, measurement data is stored into Data Management Department 55, makes data output section 54 export measurement data from respectively setting up parts 6,7 via data communication section 52.

Connection detection circuit 56 detects the situation that parts 6 are connected with main element 5 of setting up.For example, connection detection circuit 56 detects the connection of setting up parts 6 by detecting with the voltage of port in the main element 5 that is connected detection line 56a connection in cable 17.

That is, in the situation that with set up the cable 17 that parts 6 are connected and be connected with main element 5, the voltage that pulled down to low level port till connection detection circuit 56 makes to connect becomes high level, detects thus the connection of setting up parts 6.On the contrary, the voltage that also can connection detection circuit 56 makes above to be forgotten about it the port of high level becomes low level, detects thus the connection of setting up parts 6.In addition, the structure of above-mentioned connection detection circuit 56 is an example all the time, can realize by the whole bag of tricks.

Then, setting up parts 6 is configured to and comprises switching part (communication switching part) 61, data communication section (the second data communication section) 62, handling part (the second handling part) 63, transducer portion 64 and connection detection circuit 66.

Handling part 63 is according to by the detected current value of CT transducer 12 being connected with transducer portion 64, and the measurement data that becomes power value is provided according to the direct voltage providing from main element 5.

Data communication section 62 has the 62b of address setting portion that is set mailing address, the measurement data being calculated by handling part 63 according to the polling communication output from main element 5.

Switching part 61 switches to and can communicate by letter or can not communicate by letter with the adjacent communication port 62a setting up between parts 7 that is positioned at downstream (rear-stage side) in Fig. 1 setting up parts 6.For example, switching part 61 is configured to and makes to set up parts 6 and other communication port 62a setting up between parts 7 is open and closed.Switching part 61 switches to communication port 62a can communicate by letter by making communication port 62a closure, by communication port 62a is opened, communication port 62a is switched to and can not be communicated by letter.

Connection detection circuit 66 has the structure identical with the connection detection circuit 56 of main element 5, and therefore description thereof is omitted.

Setting up parts 7 is configured to and comprises switching part 71, data communication section 72, handling part (the second handling part) 73, transducer portion 74 and connection detection circuit 76.Therefore in addition, the structure of setting up parts 7 has the structure identical with setting up parts 6, and by making to set up the Reference numeral of each portion of parts 7, the description thereof will be omitted with the Reference numeral of each portion of setting up parts 6 is corresponding.In addition, setting up parts 6 and set up parts 7 and also can have mutually different structures and carry out mutually different actions, for example, can be also a power value of measuring single phase alternating current (A.C.), another measures the power value of three-phase alternating current.

In addition, in the present embodiment, transducer portion 64 is connected to CT transducer 12, as analog signal, inputted current value, but be not limited to CT transducer 12, also can connect various transducers, such as being transfused to the various signals such as power value, analog input value, digital input value, pulse input value, temperature, humidity.

Main element 5 has the first connecting portion (not shown) of setting up parts 6 for connecting.

Setting up parts (6,7) has for connecting other second connecting portion (not shown) of setting up parts (6,7) and for connecting main element 5 or other sets up the 3rd connecting portion (not shown) of parts (6,7).

In the present embodiment, via cable 17, the first connecting portion of main element 5 is connected with the 3rd connecting portion of setting up parts 6, sets up thus parts 6 and be connected with main element 5.Set up parts 6 and be connected with main element 5, thus power supply unit 51 with set up parts 6 and be connected, data communication section 52 is connected with data communication section 62, connection detection circuit 56 is connected with the internal electric source of setting up parts 6.

In the present embodiment, via cable 18, the second connecting portion of setting up parts 6 is connected with the 3rd connecting portion of setting up parts 7, sets up thus parts 7 and set up parts 6 and be connected.Set up parts 7 and set up parts 6 and be connected, the power line of setting up thus parts 6 is connected with the power line of setting up parts 7, and data communication section 62 is connected with data communication section 72, and connection detection circuit 66 is connected with the internal electric source of setting up parts 7.

In the present embodiment, set up parts (6,7) and be configured to the electric power being received by the 3rd connecting portion from the second connecting portion output.In addition, set up parts (6,7) and be configured to for example, for example, between the equipment (, main element 5) being connected with the 3rd connecting portion and the equipment (, setting up parts 7) that is connected with the second connecting portion repeating signal.

Therefore, set up parts 6 in the future the electric power of the power supply unit 51 of autonomous agent parts 5 be sent to and set up parts 7.In addition, set up parts 6 in the data communication section 52 of main element 5 and set up repeating signal between the data communication section 72 of parts 7.

The action of the measuring system of execution mode 1 then, is described.Fig. 4 is the sequential chart of action of the measuring system of explanation execution mode 1.

In addition, main element 5 and two, set up the time point that the power supply of parts 6,7 is switched on, from 5 pairs two of main elements, set up parts 6,7 allocate communications addresses.

In the explanation of Fig. 4, for convenience of explanation, the parts 6 of setting up of Fig. 1 are made as and set up components A, the parts 7 of setting up of Fig. 1 are made as and set up part B and record accordingly respectively.

In initial actuating, main element 5 detects the connection (step T1) of setting up parts 6 (setting up components A).Now, set up parts 6 (setting up components A) and detect the connection of setting up parts 7 (setting up part B).

When detecting the connection of setting up parts 6 (setting up components A) in step T1, main element 5 starts the allocation process of mailing address, by inquire exist (the step T2) that sets up parts 6 (setting up components A) via the broadcast of communication port 52a.

Set up parts 6 (setting up components A) and this inquire response set up to exist (the step T3) of parts 6 (setting up components A) from device.

Main element 5 communicates the distribution (step T4) of address by broadcast to setting up parts 6 (setting up components A).In step T4, the mailing address shown in distribution diagram 3 " 0011 ".

Set up parts 6 (setting up components A) and mailing address " 0011 " is set to the 62b of address setting portion of data communication section 62, switching part 61 is switched to can communicate by letter (step T5).

And, set up parts 6 (setting up components A) and main element 5 replied to this situation of distribution (step T6) of having accepted mailing address " 0011 ".

Main element 5 is proceeded the allocation process of mailing address, by inquire exist (the step T7) that sets up parts 7 (setting up part B) via the broadcast of communication port 52a, 62a.

Set up parts 7 (setting up part B) and this inquire response set up to exist (the step T8) of parts 7 (setting up part B) from device.

Main element 5 communicates the distribution (step T9) of address by broadcast to setting up parts 7 (setting up part B).In step T9, the mailing address shown in distribution diagram 3 " 0101 ".

Set up parts 7 (setting up part B) and mailing address " 0101 " is set to the 72b of address setting portion of data communication section 72, switching part 71 is switched to can communicate by letter (step T10).

And, set up parts 7 (setting up part B) and main element 5 replied to this situation of distribution (step T11) of having accepted mailing address " 0101 ".

In addition, not to having distributed the distribution that parts 6 (setting up components A) communicate address again of setting up of mailing address.

And by broadcast polling, other sets up exist (the step T12) of parts (be made as and set up parts C) to main element 5.

In the measuring system of Fig. 1, do not connect with set up parts C corresponding set up parts, so main element 5 finishes the assign action of mailing address with " nonreply ".

Then, with reference to the sequential chart explanation of Fig. 4 in the measuring system of execution mode 1, in the situation that main element 5 sets up from setting up during parts are collected measurement data the action that parts C is newly connected to the downstream (rear-stage side) of setting up part B.

Main element 5 is by having been used the clean culture of the mailing address " 0011 " distributing in step T4 to setting up the collection (step T21) of parts 6 (setting up components A) request measurement data.

Set up the measurement data that parts 6 (setting up components A) calculate the handling part 63 by setting up parts 6 in response to the request of this step T21 and send to main element 5 (step T22).

After step T22, set up parts 7 (setting up part B) and detect and set up parts C and be connected to the downstream (rear-stage side) (step T23) of setting up parts 7 (setting up part B) by connection detection circuit 66.

Main element 5 is by having been used the clean culture of the mailing address " 0101 " distributing in step T9 to setting up the collection (step T24) of parts 7 (setting up part B) request measurement data.

Set up the measurement data that parts 7 (setting up part B) calculate the handling part 73 by setting up parts 7 in response to the request of step T24 and send to main element 5, and notify to main element 5 (step T25) representing to have connected the detection information of setting up of setting up parts C.

When receiving the notice that this sets up detection information, main element 5 starts the allocation process of mailing addresses, by set up exist (the step T26) of parts C via the broadcast polling of communication port 52a, 62a, 72a.

Set up parts C and this inquire response set up to exist (the step T27) of parts C from device.

Main element 5 communicates the distribution (step T28) of address to setting up parts C by broadcast.In step T28, the mailing address shown in distribution diagram 3 " 0111 ".

Set up parts C and mailing address " 0111 " is set to the address setting portion (not shown) that is arranged at the data communication section of setting up parts C, by being arranged at the switching part (not shown) of setting up parts C, switch to can communicate by letter (step T29).And, set up parts C and main element 5 replied to this situation of distribution (step T30) of having accepted mailing address " 0111 ".

Like this, in initial actuating, after carrying out the allocation process of a mailing address, from setting up, during parts are collected measurement data, connecting new this situation of parts C of setting up and be notified to main element 5.

In the measuring system of execution mode 1, what 5 pairs of main elements newly detected connection sets up parts C, also with the collection of setting up parts 6,7 (setting up components A, B) and similarly ask measurement data.

Fig. 5 means the flow chart of the assign action process in main element 5.By the program of the action of the main element for execution graph 55 pre-stored to be built in the handling part 53 of main element 5 ROM (Read-Only Memory: read-only memory), by being built in CPU (the Central Processing Unit: central processing unit) carry out of handling part 53.

Main element 5 is when initial actuating or collect from setting up in the process of measurement data of parts, by connection detection circuit 56,66, judges whether to detect the connection of setting up parts (step S1) making new advances.In the situation that do not detect the connection of setting up parts (the step S1: "No"), finish the action of main element 5 making new advances.

On the other hand, in the situation that detect the connection of setting up parts (the step S1: "Yes"), main element 5 sends for inquiring the broadcast (step S2) of the new existence of setting up parts making new advances in step S1.

The parts of setting up that main element 5 judges whether to receive for the inquiry of step S2 exist and reply (step S3).Do not receiving (step S3: "No"), finish the action of main element 5 set up parts and reply in the situation that.

On the other hand, set up parts and have (step S3: "Yes"), main element 5 sends the broadcast (step S4) that not yet distributes the mailing address of (unallocated) for distributing reply in the situation that receiving.

Main element 5 judges whether to receive and represent that having accepted this distributes reply (the step S5) of this meaning from the new parts of setting up.In the situation that not receiving this and replying, (step S5: "No"), main element 5 turns back to step S3, carries out repeatedly for distributing the transmission of the broadcast of other unappropriated mailing address.

On the other hand, in the situation that receive in step S5 and represent to have accepted to distribute the replying of this meaning (step S5: "Yes"), main element 5 is made as unappropriated mailing address to distribute and register to admin table 55a (step S6).

That is, main element 5 is registered the new mailing address of setting up parts, is set up parts and exist and to reply comprised intrinsic numbering and set point (rated value) in above-mentioned admin table 55a.Afterwards, main element 5 turns back to the processing of step S2.

Fig. 6 is the flow chart that the course of action in parts 6 is set up in explanation.In the present embodiment, comprise whole parts of setting up of setting up parts 6,7 and there is same structure and carry out same action, take and set up parts 6 and describe as representative.In addition, by the pre-stored ROM to being built in the handling part 63 of setting up parts 6 of the program of the action of setting up parts 6 for execution graph 6, by being built in the CPU of handling part 63, carry out.

Set up parts 6 standbies to the broadcast (step S11) that receives inquiry existence from main element 5.

(step S11: "Yes"), set up parts 6 and send reply (the step S12) that sets up the intrinsic numbering of parts 6 and existence from device when receiving this broadcast from main element 5.

Set up parts 6 and judge whether to receive the broadcast (step S13) for allocate communications address.(step S13: "No"), the action of setting up parts 6 turns back to the processing of step S11 in the situation that not receiving broadcast.

On the other hand, in the situation that receive broadcast (the step S13: "Yes"), set up the 62b of the address setting portion allocate communications address (step S14) in 6 pairs of data communication section 62 of parts for allocate communications address from main element 5.

Setting up parts 6 controls switching parts 61 and sets up and set up parts 6 and be connected to setting up the communication port 62a between parts 7 and switching to can communicate by letter (step S15) of downstream.

Set up 6 pairs of main elements 5 of parts and reply the distribution (step S16) of having accepted mailing address.After step S16, set up the release of parts 6.

Fig. 7 is the flow chart of the collection course of action of the measurement data in explanation main element 5.By the pre-stored ROM to being built in the handling part 53 of main element 5 of the program of the action for executive agent parts 5 of Fig. 7, by being built in the CPU of handling part 53, carry out.

Main element 5 obtains a mailing address of registering in admin table 55a (step S21).

5 pairs of main elements are used in the determined collection (step S22) of setting up component request measurement data of the mailing address getting in step S21.

Main element 5 judges whether to have sent from setting up parts 6 in response to the request of step S22 reply (the step S23) of measurement data.

In the situation that the request of step S22 be there is no to (the step S23: "No"), whether passed through the stipulated time (step S24) after the main element 5 judgement requests of sending that replys of measurement data.

(step S24: "No"), the action of main element 5 turns back to the processing of step S23 in the situation that not passing through the stipulated time.On the other hand, (step S24: "Yes"), the action of main element 5 enters into the processing of step S28 in the situation that having passed through the stipulated time.

In addition, in the situation that sent (the step S23: "Yes"), main element 5 is accumulated to Data Management Department 55 (step S25) by the measurement data from setting up parts 6 that replys of measurement data in step S23.

Whether main element 5 judgements are attached with from the measurement data of setting up parts 6 the detection information (step S26) of setting up.Set up detection information and for example mean that setting up parts 6 detects the new information of setting up the parts 7 this meanings connecting in downstream.

At not additional (step S26: "No"), the action of main element 5 enters into the processing of step S28 set up detection information in the situation that.On the other hand, be attached with (step S26: "Yes"), main element 5 carries out the assign action identical with Fig. 5, poll address etc. (step S27) in admin table 55a set up detection information in the situation that.

Main element 5 judges whether that whole component retrievals of setting up from have the mailing address of registering among admin table 55a are to measurement data (step S28).In the situation that exist, also do not obtain the parts of setting up of measurement data (step S28: "No"), the action of main element 5 turns back to step S21, carries out identical action repeatedly.On the other hand, from all set up component retrieval to measurement data in the situation that (step S28: "Yes"), the release of main element 5.

Fig. 8 is the flow chart that the course of action in parts 6 is set up in explanation.By Fig. 8 for carrying out the pre-stored ROM to being built in the handling part 63 of setting up parts 6 of program of the action of setting up parts 6, by being built in the CPU of handling part 63, carry out.

Set up parts 6 and judge whether to have sent from main element 5 the collection request (step S31) of measurement data.In the situation that there is no collection request (the step S31: "No"), set up the release of parts 6 of measurement data.On the other hand, in the situation that sent collection request (the step S31: "Yes"), set up parts 6 according to by the detected signal of transducer portion 64, calculate measurement data (step S32) in handling part 63 of measurement data.

Setting up parts 6 judges whether to have detected the connection (step S33) of setting up parts 7 by connection detection circuit 66.

In the situation that detect connection (the step S33: "Yes"), set up parts 6 and this connection detection information is appended to the measurement data (step S34) calculating in step S32 that sets up parts 7.On the other hand, in the situation that do not detect connection (the step S33: "No"), the action of setting up parts 6 enters into the processing of step S35 that sets up parts 7 in step S33.

Set up parts 6 measurement data or the detection information of setting up and the measurement data of having added in the situation of setting up detection information are sent to main element 5 (step S35).

At least one extension set (6,7) that the measuring system of present embodiment possesses agent set 5 and is connected with agent set 5.Agent set 5 is configured to collects the data that measured by extension set (6,7).Agent set 5 possesses: connect test section 56, it detects the situation that extension set (6,7) is connected with agent set 5; And dispenser (handling part) 53, it is used in agent set 5 for 6 minutes via the intrinsic mailing address communicating between communication port 52a and extension set 6 to extension set in the situation that detect being connected of agent set 5 and extension set 6 by connecting test section 56.

In other words, the measuring system of present embodiment possesses extension set (setting up parts 6,7) and the agent set (main element) 5 of measure physical quantities, and this agent set (main element) 5 communicates with extension set and collects physical quantity from extension set.Agent set 5 possesses connecting portion (the first connecting portion), the first handling part 53 being connected with order wire 52a and is connected test section 56.Extension set (6,7) possess the second handling part (63,73) and be used in storage for and agent set 5 between the address setting portion (62b, 72b) of mailing address of unicast communication.Connecting test section 56 is configured to and detects being connected of extension set (6,7) and order wire 52a.The first handling part 53 is configured to when connection test section 56 detects above-mentioned connection order wire 52a is sent to mailing address.The second handling part (63,73) is configured to and the mailing address receiving is stored into address setting portion (62b, 72b) when receiving mailing address.

According to the measuring system of present embodiment, in the situation that detect the connection of extension set, can to being detected the extension set of this connection, set for agent set 5 via the intrinsic mailing address communicating between communication port 52a and extension set simply.

Like this, when the measuring system of execution mode 1 is set up parts and is collected each measurement data from one or more at main element 5, can be simply to setting up the intrinsic mailing address of component settings.Thereby, can reduce numerous and diverseization of operating personnel's construction operation.

In addition, main element 5 manages intrinsic mailing address and the intrinsic numbering of respectively setting up parts explicitly, and, to the action message of each transducer (whether normally carrying out start etc.) or manage from the metrical information (measurement data) of each transducer.

In addition, in the measuring system of present embodiment, extension set (6,7) has the intrinsic numbering that can identify extension set in advance.Agent set 5 manages intrinsic mailing address and intrinsic numbering accordingly for each extension set (6,7).

In other words, the second handling part (63,73) has the intrinsic numbering that is dispensed to extension set (6,7).The first handling part 53 is configured to the corresponding relation of the intrinsic numbering of storage and mailing address.

Even if set up in the utilization process of power measurement system that change occurs the link position of parts, intrinsic mailing address changes, and main element 5 also can continue managing by respectively setting up action message and the metrical information of each transducer that parts measure according to the intrinsic numbering of respectively setting up parts.

In addition, in the measuring system of present embodiment, in the situation that detect being connected of agent set 5 and extension set 6 by connecting test section 56, agent set 5 is inquired the existence of extension set 6 via communication port 52a, the existence that has inquire response extension set 6 of 6 pairs of extension sets 6 of extension set and intrinsic numbering.Agent set 5 makes the intrinsic numbering of replying with corresponding by the intrinsic mailing address of dispenser (handling part) 53 distribution.

In other words, the first handling part 53 is configured to when connection test section 56 detects connection, when (extension set is connected with agent set 5), order wire 52a is sent to request signal.The second handling part 63 is configured to when receiving request signal and is sent to order wire 52a by comprising the solid numbered answer signal that is dispensed to extension set 6.The first handling part 53 is configured to and when receiving answer signal, makes mailing address corresponding with the intrinsic numbering of the answer signal receiving.

In addition, the measuring system of present embodiment can be in the automatic distribution of setting up the arbitrary timing executive communication address of parts, the specific time such as while being not limited to start, can set up parts at arbitrary timing.

In addition, the measuring system of present embodiment also possesses second extension set 7 different from extension set 6.The second extension set 7 is connected to the rear class of the extension set 6 being connected with agent set 5, is connected thus by agent set 5 with the order of extension set 6.

In other words, extension set 6 has the second connecting portion, and this second connecting portion is for connecting the second extension set 7 different from extension set 6.Extension set 6 is configured to the second extension set 7 being connected with the second connecting portion is connected with the connecting portion (the first connecting portion) of agent set 5 via order wire 52a.

In addition, in the measuring system of present embodiment, extension set 6 is in the situation that detect by connecting test section the second extension set 7 that extension set 6 has connected rear class in collecting the process of the data measured by extension set 6, and the detection information of setting up that the data that measure and expression has been connected to the second extension set 7 of rear class is sent to agent set 5.At agent set 5, receive set up detection information in the situation that, the second extension set 7 of 53 pairs of rear classes of dispenser (handling part) distributes intrinsic mailing address.

In other words, extension set 6 also possesses the second connection test section 66.The second connection test section 66 is configured to and judges whether the second connecting portion is connected with the second extension set 7.The second handling part 63 is configured to and connects test section 66 and be judged as and when the second connecting portion is connected with the second extension set 7, will set up detection information and be sent to agent set 5 when second.The first handling part 53 is configured to when receiving the mailing address of the second extension set being used while setting up detection information and is sent to order wire (52a, 62a).

In addition, even if the measuring system of present embodiment, in collecting the process of measurement data, according to the connection detection information sending together with measurement data from setting up parts, also can be grasped new this situation of parts of setting up that connected.Thus, the measuring system of present embodiment can be immediately to the new parts allocate communications address of setting up.

In addition, in the measuring system of present embodiment, extension set 6 also possesses switching part 61, and this switching part 61, after distributing intrinsic mailing address, switches to the communication port 62a between the extension set with being connected at rear-stage side 7 can communicate by letter.Agent set 5, by switched to the existence that the communication port 62a that can communicate by letter inquires the extension set 7 being connected at rear-stage side by switching part 61, in the situation that this inquiry is not replied, finishes the distribution of the mailing address of dispenser (handling part) 53.

In other words, extension set 6 also possesses switching part 61, and this switching part 61 makes the path between order wire 52a and the second connecting portion open and closed.The second handling part 63 is configured to closed switching part 61 after answer signal is sent to agent set 5 and the second connecting portion is connected with order wire 52a.Even do not receive answer signal, the transmission of termination of interrogation signal if the first handling part 53 is configured to from sending request signal through the stipulated time yet.

In addition, in the measuring system of present embodiment, prime set up parts after being assigned with mailing address, for the parts of setting up of rear class, set up the communication port from main element 5 and be made as and can communicate, therefore can carry out reliably the distribution of mailing address one by one.In addition, in the measuring system of present embodiment, can connect to increase simply by daisy chain and set up parts, can make simplifying the structure of main element.

(execution mode 2)

In execution mode 1, in the situation that newly detect the connection of setting up parts during initial actuating or in collecting the process of measurement data, main element 5 communicates the assign action of address.In execution mode 2, the situation of the assign action that does not need main element is described.

Fig. 9 means the block diagram of internal structure of the measuring system of execution mode 2.To the additional identical Reference numeral of the structural element identical with execution mode 1 and the description thereof will be omitted.Compare with the measuring system of execution mode 1, the measuring system of execution mode 2 becomes the structure of having omitted connection detection circuit 56,66 and switching part 61,71.

In the measuring system of Fig. 9, at the handling part 53A of main element 5A, be connected holding wire 59 with setting up between the handling part 63A of parts 6A, at the handling part 63A that sets up parts 6A, be connected holding wire 69 with setting up between the handling part 73A of parts 7A.What for the downstream (rear-stage side) with setting up parts 7A, be connected sets up parts, is connected with holding wire similarly between the handling part of setting up parts of adjacency.As described in below, in holding wire 59,69, transmission represents to have the signal of setting up the identifying information of parts in adjacent position of mailing address.

In the present embodiment, by cable 17, the first connecting portion of main element 5 is connected with the 3rd connecting portion of setting up parts 6, sets up thus parts 6 and be connected with main element 5.Set up parts 6 and be connected with main element 5, thus power supply unit 51 with set up parts 6 and be connected, data communication section 52 is connected with data communication section 62, handling part 53A is connected with handling part 63A.

In the present embodiment, by cable 18, the second connecting portion of setting up parts 6 is connected with the 3rd connecting portion of setting up parts 7, sets up thus parts 7 and set up parts 6 and be connected.Set up parts 7 and set up parts 6 and be connected, the power line of setting up thus parts 6 is connected with the power line of setting up parts 7, and data communication section 62 is connected with data communication section 72, and handling part 63A is connected with handling part 73A.

In the present embodiment, as the signal (identification signal) of identifying information, use the different analog signal of pulse signal, voltage that logical signal, umber of pulse that duty ratio is different are different and the data-signal transmitting by unidirectional serial communication etc.

At this, the situation of using the logical signal that duty ratio is different is shown.The handling part 63A that sets up parts 6A for example, when the handling part 53A of the main element 5A from prime receives the logical signal that duty ratio is " 10:90 ", is set to the 62b of address setting portion by the mailing address corresponding with this duty ratio " Aa ".And as representing and the signal of setting up the identifying information that parts 6A is adjacent (identification signal) with mailing address, the logical signal that handling part 63A is " 20:80 " by duty ratio outputs to holding wire 69.

That is, when receiving identification signal, handling part (63A, 73A) rule according to the rules converts the identification signal receiving, and generates thus the identification signal with the identification signal different conditions receiving (being duty ratio in above-mentioned example).

Similarly, the handling part 73A that sets up parts 7A, when when setting up the handling part 63A of parts 6A and receive the logical signal that duty ratio is " 20:80 ", is set to the 72b of address setting portion by the mailing address corresponding with this duty ratio " Bb ".

After, repeatedly carry out identical action, in respectively setting up parts, set unique mailing address.That is to say, in setting up each handling part 53A, the 63A of components A, B, prepared the mailing address corresponding with the logical signal receiving in advance.This mailing address can be registered in table of respectively setting up in parts etc. in advance, also can calculate this mailing address according to simple formula.In addition,, in the situation that calculating according to formula, also can set successively mailing address in the mode of increment value 1 only.

In addition, be not limited to use the situation of the logical signal that duty ratio is different, in the situation that use the different analog signal of pulse signal, voltage that umber of pulse is different and the data-signal that transmits by one direction serial communication also identical.For example, in the situation that use the different pulse signal of umber of pulse, the handling part 63A that sets up parts 6A for example, when the handling part 53A from main element 5A receives the pulse signal of 10pps, is set to the 62b of address setting portion by the mailing address corresponding with this umber of pulse " Aa ".And, as representing and the signal of setting up the identifying information that parts 6A is adjacent with mailing address, handling part 63A by the output of pulse signal of 20pps to holding wire 69.

Similarly, the handling part 73A that sets up parts 7A, when when setting up the handling part 63A of parts 6A and receive the pulse signal of 20pps, is set to the 72b of address setting portion by the mailing address corresponding with this umber of pulse " Bb ".

In the admin table 55b of the Data Management Department 55 of main element 5A, managing the order additional mailing address in advance of setting up parts according to connection.Figure 10～13 mean the table of the mailing address of being managed by admin table 55b.Figure 10 means the table of the mailing address that the logical signal different from duty ratio managed accordingly.Figure 11 means the table of the mailing address that the pulse signal different from umber of pulse managed accordingly.Figure 12 means the table of the mailing address that the analog signal different from voltage managed accordingly.Figure 13 means the table of the mailing address of managing accordingly from the different data-signal transmitting by unidirectional serial communication.

The action of the measuring system of execution mode 2 then, is described.Figure 14 is the flow chart that the assign action process of parts 6A is set up in explanation.In the present embodiment, comprise whole parts of setting up of setting up parts 6A, 7A and there is same structure and carry out identical action, take and set up parts 6A and describe as representative.In addition, by for carrying out the pre-stored ROM to being built in the handling part 63A that sets up parts 6A of program of the action of setting up parts 6 of Figure 14, by being built in the CPU of handling part 63A, carry out.

Set up parts 6A and confirm identifying information (step S41) according to the signal that outputs to holding wire 59 from main element 5A.As mentioned above, the situation of using the logical signal that duty ratio is different as outputing to the signal of holding wire 59 is also shown in the explanation of Figure 14.As identifying information, in the situation that duty ratio is " 10:90 ", sets up parts 6A and the mailing address " Aa " corresponding with duty ratio " 10:90 " is set to the 62b of address setting portion (step S42) of data communication section 62.

As representing with the signal of setting up the identifying information that parts 6A is adjacent with mailing address, referring to the information of " identifying information+1 ", set up parts 6A the logical signal of duty ratio " 20:80 " is outputed to holding wire 69 (step S43).Afterwards, set up the release of parts 6A.

Figure 15 is the flow chart that the measurement data in explanation main element 5A is collected course of action.By for carrying out the pre-stored ROM to being built in the handling part 53A of main element 5A of program of action of the main element 5A of Figure 15, by being built in the CPU of handling part 53A, carry out.

Main element 5A obtains a mailing address of registering in admin table 55b (step S61).Main element 5A is to being used in the determined collection (step S62) of setting up component request measurement data of the mailing address getting in step S61.

Main element 5A judges whether to have sent from setting up parts 6A in response to the request of step S62 reply (the step S63) of measurement data.In the situation that the request of step S62 has been sent to (the step S63: "Yes"), main element 5A is accumulated to Data Management Department 55 (step S64) by measurement data that replys of measurement data.After step S64, the action of main element 5A turns back to the processing of step S61.

On the other hand, in the situation that there is no (the step S63: "No"), whether main element 5A judgement has passed through the stipulated time (step S65) after the request of sending step S62 that replys of measurement data.(step S65: "No"), the action of main element 5A turns back to the processing of step S63 in the situation that not passing through the stipulated time.

On the other hand, (step S65: "Yes"), main element 5A is judged as and sets up parts and do not connect, in order to grasp the parts of setting up that are connected to downstream, to admin table 55b additional examination mark (step S66) in the situation that having passed through the stipulated time.Main element 5A appends to the check mark (with reference to Figure 10～13) of admin table 55b by inspection, can hold the quantity of setting up parts being connected with administrative institute.Afterwards, the release of main element 5A.

Figure 16 is the flow chart that the course of action in parts 6A is set up in explanation.By for carrying out the pre-stored ROM to being built in the handling part 63A that sets up parts 6A of program of the action of setting up parts 6A of Figure 16, by being built in the CPU of handling part 63A, carry out.

Set up parts 6A and judge whether to have sent from main element 5A the collection request (step S71) of measurement data.In the situation that there is no collection request (the step S71: "No"), set up the release of parts 6A of measurement data.On the other hand, in the situation that sent collection request (the step S71: "Yes"), set up parts 6A according to by the detected signal of transducer portion 64, calculate measurement data (step S72) in handling part 63A of measurement data.

Set up parts 6A by measurement data and remain in advance the intrinsic numbering of setting up parts 6A and be sent to main element 5A (step S73).Thus, main element 5A can manage the intrinsic numbering corresponding with mailing address.Also this intrinsic numbering can be appended to admin table 55b.In addition, intrinsic numbering is notified to main element 5A once after, in step S73, also can only send measurement data.

As mentioned above, a plurality of extension sets 6,7 that the measuring system of present embodiment possesses agent set 5 and is connected with agent set 5.For a plurality of extension sets 6,7, by the extension set 6 with being connected in agent set 5, be connected and the second extension set 7 that is different from extension set 6 that is connected with the rear class of extension set 6 is connected according to the order of agent set, above-mentioned extension set and above-mentioned the second extension set.Agent set 5 is collected the data that measure by a plurality of extension sets 6,7.Agent set 5 and a plurality of extension set 6,7 possess signal efferent (handling part) 53A, 63A, and this signal efferent (handling part) 53A, 63A are that agent set 5 and extension set 6 export to the extension set 6 of rear class and the second extension set 7 efferent that represents the identification signal adjacent with extension set 6 with agent set 5 respectively.A plurality of extension sets 6,7 also possess signal input part (handling part) 63A, 73A and configuration part (handling part 63A, 73A), this signal input part (handling part) 63A, 73A are transfused to the identification signal of exporting by signal efferent, and this configuration part (handling part 63A, 73A) sets mailing address according to the identification signal of inputting by signal input part.Agent set 5 manages the mailing address of setting by configuration part and identification signal accordingly.

In other words, the measuring system of present embodiment possesses the extension set of measure physical quantities (6,7) and agent set 5, and this agent set 5 communicates with extension set and collects physical quantity from extension set.Agent set 5 possesses the first connecting portion and the first handling part 53A of connection extension set (6,7).Extension set (6,7) possess connect the second connecting portion, second handling part (63A, 73A) of other extension set (6,7) and be used in storage for and agent set 5 between the address setting portion (62b, 72b) of mailing address of unicast communication.The extension set 6 that the first handling part 53A is configured to being connected with the first connecting portion sends identification signal.The second handling part (63A, 73A) is configured to and mailing address corresponding to the state of the identification signal with receiving is stored into address setting portion (62b, 72b) when receiving identification signal and the identification signal of the identification signal different conditions with receiving is sent to the extension set (6,7) being connected with the second connecting portion.

In addition, in the measuring system of present embodiment, the second handling part (63A, 73A) is configured to the storage a plurality of mailing addresses corresponding with a plurality of states difference of identification signal.The second handling part (63A, 73A) is configured to the corresponding mailing address of state of selecting from a plurality of mailing addresses when receiving identification signal with the identification signal receiving.

In addition, in the measuring system of present embodiment, agent set 5 has Data Management Department 55.Data Management Department 55 is configured to the storage a plurality of above-mentioned mailing address corresponding with a plurality of states difference of identification signal.Agent set 5 is configured to a plurality of mailing addresses of storing from Data Management Department 55 and selects mailing address, will specify the acknowledges requests signal of selected mailing address to be sent to extension set (6,7).Extension set (6,7), if be configured to by the mailing address of acknowledges requests signal appointment unanimously with the mailing address that address setting portion (62b, 72b) stores, will comprise the solid numbered answer signal that is dispensed to extension set (6,7) and be sent to agent set 5.Agent set 5 is configured to and when receiving answer signal, makes the intrinsic numbering of the answer signal that receives corresponding with selected mailing address.

In addition, in the measuring system of present embodiment, the second handling part (63A, 73A) thus being configured to when receiving identification signal identification signal that rule transformation according to the rules receives generates the identification signal with the identification signal different conditions receiving.

In addition, in the measuring system of present embodiment, even the rule of regulation is determined also not have the identification signal of equal state for identification signal is converted to several times.

The power measurement system of execution mode 2 according to the above description, do not need setup and use data communication channel (communication port 52a) to set up parts allocate communications address during, can set up simply the next one and set up parts.

For example, identification signal is logical signal.In this case, the rule of regulation is the duty ratio (state of identification signal) that reduces or increase logical signal.

Or identification signal can be also pulse signal.In this case, the rule of regulation is the umber of pulse (state of identification signal) that reduces or increase pulse signal.

Or identification signal can be also analog signal.In this case, the rule of regulation is to reduce or improve the magnitude of voltage (state of identification signal) of analog signal.

Or identification signal can be also data-signal.In this case, the rule of regulation is the parameter (state of identification signal) that reduces or increase data-signal.

In addition, the present invention is not limited to the structure of above-mentioned execution mode, if can reach the structure of the function that the structure of the function that illustrates or present embodiment has within the scope of claim, can apply structure arbitrarily.

For example, in the above-described embodiment, show the situation of the power measurement system that is applied to measure power value, but be not limited to power value, can also be applied to measure the system of the physical quantitys such as temperature, humidity.

In addition, in execution mode 1, show by daisy chain and connect a main element is set up to a plurality of structures of setting up parts, but can be also a plurality of star-like structures that are connected in a main element of parts of setting up.In this case, in main element, arrange and detect respectively a plurality of a plurality of connection detection circuit of setting up the connection of parts.

(execution mode 3)

As measuring system in the past, the electric power system for measuring quantity (multicircuit electricity dynamometer) that for example exists document 2 (No. 2005-55404th, Japanese Patent Publication communique) to record.This past case possesses the measurement mechanism main body that the electric power amount of a plurality of circuit is measured respectively and of being connected with measurement mechanism main body to a plurality of parts of setting up, measurement mechanism main body is connected to (setting up) and set up parts, thereby the electric power amount of circuit more than the circuit number that can configure measurement mechanism main body is measured.

In addition, as other measuring system, exist to have and measure respectively identical type or different types of physical quantity (electric power amount, temperature, humidity etc.) one and set up parts and to collecting the measuring system with the main element of managing by respectively setting up measured value that parts measure to a plurality of.

In above-mentioned any measuring system, in order to improve the degree of freedom of the setting position of setting up parts, all from measurement mechanism main body, main element, to respectively setting up parts, provide the electric power of action use.But the number of setting up parts that the capacity of the power supply unit (power circuit) possessing with measurement mechanism main body, main element correspondingly can be connected (power supply can be provided) is restricted.

Yet, in the situation that because construction is wrong, wait set up the power supply unit that number exceeds main element power supply capacity set up parts, the electric power of power supply unit provides and becomes not enough and likely make the action of setting up parts, main element become unstable.

Present embodiment completes in view of the above problems, and object is to prevent owing to setting up parts the action of system unstable this situation that becomes.

As shown in figure 17, the measuring system of present embodiment by main element (agent set) M and one to a plurality of measurement components (extension set) S1, S2 ..., Sn forms.

Measurement component Si (i=1,2 ..., n) possess handling part 120, transducer portion 121, data communication section 122, address setting portion 123 and information retaining section 124 etc.

The physical quantitys such as voltage, electric current, temperature, humidity detect in transducer portion 121, and detected physical quantity is transformed to the signal of telecommunication and outputs to handling part 120.Wherein, for detection of the transducer of each physical quantity, be in the past known, so detailed.

Handling part 120 be take microcomputer as main structure key element, and the signal of telecommunication receiving from transducer portion 121 is carried out signal processing and the measured value of physical quantity (for example, instantaneous electric power, electric power amount, temperature, humidity etc.) is carried out to computing.

Data communication section 122 is via carrying out the data communication of poll/selection mode between order wire 103 and the data communication section 111 of main element M.

Address setting portion (address input part) 123 is set in the inherent address using in the data communication of data communication section 122, for example, dual-in-line switch, consist of.

Information retaining section 124 consists of the resistive element being connected in parallel on the information wire 104 of two-wire system.In addition, the resistance value R of resistive element is set as set up with each value that rated consumption electric power in parts Si is corresponding.

Main element M possesses handling part 110, data communication section 111, Data Management Department 112, data output section 113, power supply unit 114 and switching part 115 etc.

Data communication section 111 data communication section 122 that poll is respectively set up parts Si termly, the data (measured value data) of selecting (selecting) to maintain will to send set up parts Si, via order wire 103, from selected data communication section 122 of setting up parts Si, receive data.

Data Management Department 112, by forming by the electric semiconductor memory (flash memory etc.) rewriteeing, stores the measured value data of collecting from respectively setting up parts Si.

Handling part (the first handling part) 110 be take microcomputer as main structure key element, the data that receive is written to Data Management Department 112 or the data of storing by data output section 113Jiang Data Management Department 112 output to outside by data communication section 122.

Data output section 113 has the display devices such as liquid crystal panel, memory card slot or general data transmission circuit etc., makes be presented at liquid crystal panel or be written into storage card or be transferred to external equipment by data transmission circuit from the data of handling part 110 transmission.

Power supply unit 114 generates direct current power by the alternating electromotive force providing from source power supply 101 and each portion 110～113 is provided to the electric power of action use, and for connecting up by transmissions, be connected with supply lines 102 respectively set up the electric power that parts Si provides each portion 120～123 to move use.

Switching part 115 consists of the relay that is inserted into supply lines 102, according to the control signal providing from handling part 110, carrys out open and close supply lines 102.That is, under the state of opening at switching part 115, stop, from power supply unit 114 to setting up parts Si power supply, under the state of switching part 115 closures, carrying out from power supply unit 114 to the power supply of setting up parts Si.

At this, as conventional art explanation like that in the situation that set up number surpass power supply unit 114 power supply capacity set up parts Si, likely the electric power of power supply unit 114 provides and becomes deficiency and be not only the become action of unstable main element M of the action of setting up parts Si and also become unstable.

Therefore, in the present embodiment, the handling part 110 of main element M obtains and the relevant information of parts Si of setting up that is connected in supply lines 102 (with power consumption relevant information), opens switching part 115 will offer when set up whole total amounts of setting up the electric power of parts Si surpass higher limit.On the other hand, if offer set up whole total amounts of setting up the electric power of parts Si, surpass higher limit, the closed switching part 115 of handling part 110 and respectively set up parts Si from 114 pairs of power supply units electric power is provided.

For example, the higher limit of the power supply capacity of power supply unit 114 (wherein, representing with current value) is assumed to be to 400mA (milliampere), the maximum consumption electric current of setting up parts S1～S3 is assumed to be respectively to 100mA, 200mA, 100mA.In this case, the resistive element of setting up the information retaining section 124 of parts S1, S3 is set as to the resistance value R corresponding with 100mA, the resistive element of setting up the information retaining section 24 of parts S2 is set as to the resistance value R/2 corresponding with 200mA (with reference to Figure 18).

The handling part 110 of main element M is opened under the state of switching part 115 information wire 104 is applied to constant voltage after startup, to flowing through that the current value of information wire 104 is measured and the value of calculating the all-in resistance of the resistive element being connected with information wire 104.In this case, the resistance value of all-in resistance becomes 1/ (1/R+2/R+1/R)=R/4, becomes 400mA when being scaled current sinking.

Handling part 110 compares set up whole total amounts (400mA) of setting up the maximum consumption electric current of parts S1～S3 with higher limit (400mA), be judged as total amount and do not surpass higher limit and closed switching part 115.Its result, execution is respectively set up parts S1～S3 from the power supply unit 14 of main element M and is started action to setting up the power supply of parts S1～S3.

On the other hand, main element M is being set up to the 4th set up parts S4 in the situation that, whole total amounts of setting up the maximum consumption electric current of parts S1～S4 of setting up surpass higher limit, so the handling part 110 of main element M does not make switching part 115 closures.And handling part 110 outputs to data output section 113 by the situation of setting up number surplus of setting up parts Si, for example, in display device, show mistake.

As mentioned above, the measuring system of present embodiment has one to a plurality of parts Si and main element M of setting up, this possesses the measuring unit (transducer portion) 121 that the physical quantitys such as electric power amount, temperature, humidity are measured to a plurality of parts Si that set up, and this main element M collects with management by the data of setting up the physical quantity that parts Si measures.Main element M possesses: power supply unit (power supply unit) 114, and it sets up via 102 pairs of supply lines the electric power that parts Si provides action use; Information acquisition unit (handling part) 110, it obtains and the relevant information of parts Si (power information) of setting up being connected with power supply unit 114 via supply lines 102; And control unit (handling part) 110, it obtains the total amount (the first electric power) that will offer the electric power of setting up parts Si according to the information (power information) getting by information acquisition unit 110, when the total amount (the first electric power) of electric power surpasses the higher limit of amount of power supply (the second electric power) of power supply unit 114, end the power supply of power supply unit 114, when the total amount (the first electric power) of electric power surpasses higher limit, power supply unit 114 is powered.

In other words, the measuring system of present embodiment possesses extension set (setting up parts) Si and agent set (main element) M of measure physical quantities, and this agent set (main element) M and extension set Si communicate and collect physical quantity from extension set Si.Agent set M possesses power supply unit (power supply unit) 114, information acquisition unit (handling part) 110 and control unit (handling part) 110.The extension set Si that power supply unit 114 is configured to being connected with agent set M provides electric power.Information acquisition unit 110 is configured to obtains the power information relevant with the extension set Si that is connected in agent set M.Control unit 110 is configured to be obtained according to the power information that gets by information acquisition unit 110 the extension set Si that makes to be connected with power supply unit 114 and moves the first required electric power.If control unit 110 is configured to the first electric power, surpass the higher limit that can be offered the second electric power of extension set Si by power supply unit 114, from power supply unit 114, do not power, when the first electric power does not surpass higher limit, from power supply unit 114, power.

The measuring system of present embodiment as above has can prevent along with setting up parts Si the action of the measuring system unstable this effect that becomes.

In addition, in the measuring system of present embodiment, set up parts Si and possess Information preservation unit (information retaining section) 124, this Information preservation unit (information retaining section) 124 keeps the information (power information) relevant with the maximum of the electric power oneself consuming.The information acquisition unit of main element M (handling part) 110 is obtained kept information (power information) from Information preservation unit 124.

In other words, extension set Si possesses the Information preservation unit (information retaining section) 124 that keeps power information.Power information means the information of the power consumption of extension set Si.Information acquisition unit (handling part) 110 is configured to from Information preservation unit 124 obtains power information.

In addition, in the measuring system of present embodiment, Information preservation unit (information retaining section) 124 consists of the resistive element with the resistance value corresponding with maximum.Information acquisition unit (handling part) 110 is carried out obtaining information (power information) by detecting with the corresponding physical quantity of resistance value of resistive element.

In other words, Information preservation unit (information retaining section) the 124th, has the resistive element of the resistance value corresponding with power consumption (power consumption of extension set Si).Information acquisition unit (handling part) 110 is configured to by detecting with the corresponding physical quantity of resistance value of resistive element and obtains power information.

In addition, in the measuring system of present embodiment, Information preservation unit (information retaining section) 124 consists of the resistive element with the resistance value corresponding with the maximum of current sinking.

In other words, power information means the information of the current sinking of extension set Si.Information preservation unit (information retaining section) the 124th, has the resistive element of the resistance value corresponding with current sinking (current sinking of extension set Si).Information acquisition unit (handling part) 110 is configured to by detecting with the corresponding physical quantity of resistance value of resistive element and obtains above-mentioned information.

In addition, in the measuring system of present embodiment, resistive element is connected in parallel on supply lines 102.Information acquisition unit (handling part) 110 is carried out obtaining information (power information) according to the size of mobile electric current when supply lines 102 is applied to constant voltage.

In other words, information acquisition unit (handling part) 110 is connected with a pair of information wire 104.Extension set Si is configured to resistive element when being connected with agent set M and is connected between a pair of information wire 104.Information acquisition unit 110 is configured to the size of electric current mobile when applying constant voltage between a pair of information wire 104 and obtains power information.

Thereby the total amount (summation) of setting up the maximum consumption electric current of parts S1～S3 can not surpass the power supply capacity of power supply unit 14, so main element M and any action of setting up parts S1～S3 all can not become unstable.In addition, the handling part 10 of main element M is equivalent to control unit in the present embodiment.

(execution mode 4)

As shown in figure 19, in the present embodiment, except appending storage part 125 and switching part (action switching part) 126 respectively setting up parts Si, therefore there is the structure common with execution mode 3, to the additional identical Reference numeral of the structural element common with execution mode 3 and suitably description thereof is omitted.

Switching part 126, by being inserted into from supply lines 102 to handling part 120 and the relay for the open type of electric channel of transducer portion 121 forms, as described in hereinafter, carrys out closed switching part 126 according to the control signal providing from data communication section 122.

That is, at switching part 126, opening does not provide electric power under the state of (disconnection) and handling part 120 and transducer portion 121 stop, and provides electric power and handling part 120 and transducer portion 121 move under the state of switching part 126 closures (connection).

Storage part 125 storages comprise the peaked information (the maximum consumption current value data of normal mode) of the power consumption (current sinking) of handling part 120 and transducer portion 121.

In addition, the information retaining section in present embodiment 124 only keeps the information (the maximum consumption current value data of low consumption pattern) of the power consumption of the data communication section 122 except handling part 120 and transducer portion 121.

For example, have additional three and set up parts S1～S3, the higher limit of the power supply capacity of power supply unit 114 is assumed to be to 400mA, the maximum consumption current value of setting up the low consumption pattern of parts S1～S3 is assumed to be to 40mA, the maximum consumption current value of normal mode is assumed to be respectively to 100mA, 200mA, 100mA.In this case, the resistive element of setting up the information retaining section 124 of parts S1～S3 is set as to the resistance value R corresponding with 40mA.

Under the state that the handling part 110 of main element M is opened at switching part 115 after startup, information wire 104 is applied to constant voltage, to flowing through that the current value of information wire 104 is measured and the value that calculates the all-in resistance of the resistive element being connected with information wire 104.In this case, the resistance value of all-in resistance becomes 1/ (1/R+1/R+1/R)=R/3, becomes 120mA when being scaled current sinking.

The total amount that handling part 110 is judged as the maximum consumption electric current of set up whole low consumption patterns of setting up parts S1～S3 does not surpass higher limit and makes switching part 115 closures.Its result, carries out from the power supply unit 114 of main element M to the power supply of setting up parts S1～S3, respectively sets up the action that parts S1～S3 starts to carry out low consumption pattern.

Then,, in main element M, data communication section 111 successively three of polls is set up parts S1～S3 and is asked to send the maximum consumption current value data of normal mode.On the other hand, in respectively setting up parts S1～S3, by the data communication section 122 of data communication section 111 polls of main element M, read the maximum consumption current value data of the normal mode that storage part 125 stores and be returned to the data communication section 111 of main element M.

The handling part 110 of main element M obtains from respectively setting up the maximum consumption current value data of the normal mode that parts S1～S3 replys and judges whether to switch to normal mode from data communication section 111.

For example, the maximum consumption current value (100mA) of setting up from first normal mode that parts S1 replys surpasses higher limit (400mA) with the aggregate value (180mA) of the maximum consumption current value (40mA) of all the other two low consumption patterns of setting up parts S2, S3.

Therefore, handling part 110 is judged as to be set up parts S1 and can switch to normal mode, and the data communication section 122 that makes 111 pairs of data communication section set up parts S1 sends the control command that indication is switched to normal mode.

And the data communication section 122 of setting up parts S1 is when receiving the control command sending from main element M, closed (connections) switching part 126 and execution are to the power supply of handling part 120 and transducer portion 121.

Its result, handling part 120 and transducer portion 121 from low consumption mode transition to normal mode, are sent to main element M by the measured value data of the testing result based on transducer portion 121 from handling part 120 and data communication section 122 via action.

In addition, the handling part 110 of main element M is obtained from second maximum consumption current value (200mA) of setting up the normal mode that parts S2 replys, the aggregate value (340mA) that is transitioned into the maximum consumption current value (100mA) of setting up parts S1 of normal mode and remains the maximum consumption current value (40mA) of a low consumption pattern of setting up parts S3.

And, this composite value does not surpass higher limit (400mA), therefore handling part 110 is judged as and sets up parts S2 and can switch to normal mode, and the data communication section 122 that makes 111 pairs of data communication section set up parts S2 sends the control command that indication is switched to normal mode.

And the handling part 110 of main element M is obtained the maximum consumption current value (100mA) and the aggregate value (400mA) that is transitioned into the maximum consumption current value of setting up parts S1, S2 (100mA, 200mA) of normal mode of setting up the normal mode of parts S3 reply from the 3rd.

And, this composite value does not surpass higher limit (400mA), therefore handling part 110 is judged as and sets up parts S3 and can switch to normal mode, and the data communication section 122 that makes 111 pairs of data communication section set up parts S3 sends the control command that indication is switched to normal mode.

As mentioned above, all setting up parts S1～S3 is switched to normal mode and is moved from low consumption pattern.

At this, main element M is being set up to the 4th set up parts S4 in the situation that, the aggregate value of the maximum consumption current value of whole normal modes of setting up parts S1～S4 of setting up surpasses higher limit.

Therefore, the handling part 110 of main element M is not set up parts S4 to the 4th and is sent the control command that indication is switched to normal mode, makes data output section 113 outputs set up superfluous this situation of number of setting up of parts Si.In addition,, if the 4th is set up parts S4 and can not receive control command from main element M, not closed switching part 126, so handling part 120 and transducer portion 121 do not move.

In the measuring system of present embodiment as above, set up parts Si and possess: communication unit (data communication section) 122, itself and main element M communicate; Switch unit (switching part) 126, it switches the execution of powering to measuring unit (transducer portion) 121 via supply lines 102 and stops; Information preservation unit (information retaining section) 124, it keeps at least information of the power consumption except measuring unit 121; And memory cell (storage part) 125, its storage comprises the peaked information of the power consumption of measuring unit 121.Main element M possesses communication unit 111, and this communication unit 111 communicates with the communication unit 122 of setting up parts Si and obtains the peaked information of the power consumption that memory cell 125 stores.Control unit (handling part) 110 is according to the peaked information of the power consumption obtaining by communication unit 111, in being no more than the scope of higher limit, select can to measuring unit (transducer portion) 121 power supplies set up parts Si, the selected parts Si that sets up indicate and switch unit (switching part) 126 is switched to carry out to power.Switch unit 126 is according to switching the execution of power supply from the indication of main element M and stopping.

In other words, extension set Si also possesses: communication unit (data communication section) 122, and itself and agent set M communicate; Measuring unit (transducer portion) 121, its measure physical quantities; Switch unit (switching part) 126, it makes circuit open and closure between power supply unit (power supply unit) 114 and measuring unit 121; And memory cell (storage part) 125.Memory cell 125 is configured to electric power and the total electric power (for example, the maximum consumption current value of normal mode) of measuring with electric power for storing communication.Communication is that extension set Si carries out the required electric power (the maximum consumption current value of for example, low consumption pattern) of communication process of communicating by letter with agent set M by communication unit 122 with electric power.Measuring is that required electric power is processed in the measurement that extension set Si carries out measure physical quantities by measuring unit 121 with electric power.Power information means the information of electric power for communication.Agent set M is configured to and communicates with extension set Si and obtain the total electric power that memory cell 125 is stored.Control unit (handling part) 110 is configured to according to the total electric power getting from extension set Si and in being no more than the scope of higher limit, selects to measure the extension set Si processing, and selected extension set is sent and drives signal.Extension set Si is configured to when receiving driving signal by communication unit 122 and controls switch unit 126 and closed circuit (circuit between power supply unit 114 and measuring unit 121).

As mentioned above, in the present embodiment, can set up parts Si with the order (position) that is connected in main element M independently selects to make having stable behavior.

(execution mode 5)

In the present embodiment, as shown in figure 20, in respectively setting up parts Si, append address generation portion 127 and switching part 128, and omit information retaining section 124 and address setting portion 123, and to main element M with set up parts Si and append whether there is the detecting unit (handling part 110,120) that parts Si detects of setting up of rear class.Therefore in addition, other structure and execution mode 3 are common, to the additional identical Reference numeral of the structural element common with execution mode 3 and suitably description thereof is omitted.

As shown in figure 21, address generation portion 127 possesses logical AND gate circuit 270 and not circuit 271, and the side in the information wire 104 of twin wire inserts logical AND gate circuit 270, and the opposing party in information wire 104 inserts not circuit 271.

In addition information wire 104 grounding connection in main element M.And the handling part 120 of respectively setting up parts Si is made as intrinsic address by the combination (XY) of the output Y of the output X NAND gate circuit 271 of logical AND gate circuit 270.

Switching part 128 consists of the relay that is inserted into the open type of supply lines 102, according to the control signal providing from handling part 120, carrys out closed (connection) supply lines 102.That is, the parts Si+1 that sets up stopping under state that opening (disconnection) switching part 128 from power supply unit 114 to rear class powers, and carries out the power supply of setting up parts Si+1 from power supply unit 114 to rear class under the state of closed (connection) switching part 128.

In addition, as shown in figure 22, the handling part 110 of main element M is pulled to constant voltage Vcc with the I/O port of setting up the handling part 120 of parts Si via pull-up resistor Rx.And in setting up parts Si, be provided with the cycling circuit 106 that the I/O port of setting up parts Si via the holding wire 105 of twin wire and the I/O port of main element M or prime is connected.Wherein, with one end grounding connection of setting up the holding wire 105 that parts Si is connected of rear class.

That is to say, if rear class does not connect and sets up parts Si, the I/O port of handling part 110,120 becomes high level.On the other hand, if rear class is connected with, set up parts Si, the I/O port of handling part 110,120 becomes low level via the cycling circuit of setting up parts Si 106 grounding connections of holding wire 105 and rear class.Thereby whether handling part 110,120 can detect rear class according to the level of I/O port and be connected with and set up parts Si.

At this, in the present embodiment, the set up number of setting up parts Si of the power supply capacity based on power supply unit 114 is restricted to three.Thereby, in address generation portion 127, according to from main element M from close to the order of connection far away, information wire 104 is generated to some three kinds of addresses (01) except the address (00) of main element M, (10), (11).

The handling part 110 of main element M judges whether to be connected with according to the level of I/O port after startup sets up parts S1, if connected, closed (connections) switching part 115 and execution are to the power supply of setting up parts S1.

First handling part 120 of setting up parts S1 of being powered by main element M and starting is confirmed to be judged as the address being generated by address setting portion 127 in rear class and can to set up parts S2 according to the value of its address (01).And the handling part 120 of setting up parts Si judges according to the level of I/O port whether rear class is connected with second and sets up parts S2, if connected, closed (connections) switching part 128 and execution are to the power supply of setting up parts S2.Similarly, second handling part 120 of setting up parts S2 also closed (connections) switching part 128 and execution to the 3rd power supply of setting up parts S3 of rear class.

On the other hand, about the 3rd handling part 120 of setting up parts S3, the value of the address being generated by address setting portion 127 is (11), therefore be judged as and can not more set up, with the level of I/O port independently, switching part 128 is maintained and opens (disconnection) state and do not carry out the power supply to rear class.

In the measuring system of present embodiment as above, agent set M possesses power supply unit (power supply unit) 114, and this power supply unit (power supply unit) 114 couples of extension set Si that are connected with agent set M provide electric power.Extension set Si possesses switch unit (switching part) 128 and supply control unit (handling part) 120.Switching part 128 be configured to be arranged on from power supply unit 114 to other extension set Si for electric channel (supply lines) 133 and make to open and closed for electric channel 133.Whether handling part 120 is configured to the quantity that the mailing address of storing according to configuration part, address (not shown) judges the extension set Si being connected with agent set M and equates with the maximum quantity of the extension set Si that can be connected with agent set M.If handling part 120 is configured to the quantity of the extension set Si being connected with agent set M, equate with above-mentioned maximum quantity, close switching part 128, if the quantity of the extension set Si being connected with agent set M is less than above-mentioned maximum quantity, open switching part 128.

In addition, in the measuring system of present embodiment, set up parts Si and possess detecting unit (handling part) 120 and power supply stop element (handling part) 120, whether 120 pairs of supply lines of this detecting unit (handling part) 102 detect and exist other that be connected to rear class from main element M to set up parts Si, and this power supply stop element (handling part) 120 stops the power supply to rear class via supply lines 1025 examining by detecting unit (handling part) 120 not measure the in the situation that other setting up parts Si.

In other words, extension set Si also possesses detecting unit (handling part) 120 and power supply stop element (handling part) 120.Detecting unit is configured to and judges whether extension set Si is connected with other extension set Si.Power supply stop element is configured to when detecting unit is judged as and when extension set Si does not connect other extension set Si, cuts off the circuit between power supply unit (power supply unit) 114 and other extension set Si.

And, in the present embodiment, even set up mistakenly in using the process of system, allow more than number to set up parts Si, the parts Sn (setting up parts S3 if above-mentioned example is the 3rd) that sets up of final level stops the power supply to rear class, and action that thus also can anti-locking system becomes unstable.And, the switching part (power switching portion) 128 of setting up in parts Sn of final level maintains (disconnection) state of opening, the power supply terminal of setting up use (not shown) of setting up in parts Sn of final level is not applied to voltage thus, therefore there is this advantage of raising of the fail safe of realizing.

In addition,, in the measuring system of present embodiment, set up parts Si and possess the scalar/vector (address generation portion) 127 that generates intrinsic address.At this, information acquisition unit (handling part) 110 also can be obtained the address (mailing address) that generated by scalar/vector 127 as power information.Control unit (handling part) 110 also can be obtained the total amount (the first electric power) that will offer the electric power of setting up parts Si according to the address getting by information acquisition unit.

(execution mode 6)

As shown in figure 23, the measuring system of present embodiment possesses extension set (measurement mechanism) Si and agent set (gathering-device) M of measure physical quantities, and this agent set (gathering-device) M and extension set Si communicate and collect physical quantity from extension set Si.

In the present embodiment, agent set M is connected with extension set Si (S1) via cable 106 (106A).In addition, extension set Si (S1) is connected with other extension set (the second extension set) Si (S2) via cable 106 (106B).

Cable 106 (106A, 106B) has supply lines 102 (102A, 102B), order wire 103 (103A, 103B), information wire 104 (104A, 104B) and identification line 107 (107A, 107B).

Agent set (main element) M has handling part (the first handling part) 110, data communication section (the first data communication section) 111, Data Management Department 112, data output section 113, power supply unit 114 and switching part 115.In addition, data output section 113 is identical with execution mode 3, and therefore description thereof is omitted.

Agent set M also has the power supply terminal 116 being connected with source power supply 101 and the output terminal part that is connected extension set Si (the first connecting portion) 117.

The first connecting portion 117 has power supply terminal 117a, communication terminal 117b, recognition terminal 117c and information terminal 117d.

Data communication section 111 is configured to via communication terminal 117b order wire 103 output communication signals.Signal of communication comprises by mailing address and comes the unicast signal of assigned address and the multicast signal of assigned address (broadcast singal) not.Mailing address be for and agent set M between the address of unicast communication.

Power supply unit 114 is connected with power supply terminal 117a with power supply terminal 116.The alternating electromotive force that power supply unit 114 is configured to from obtaining from source power supply 101 via power supply terminal 116 generates direct current power and outputs to power supply terminal 117a.

Switching part 115 is present between power supply unit 114 and power supply terminal 117a.Switching part 115 is for example relay.Thereby, if switching part 115 is disconnected, from power supply unit 114 to power supply terminal 117a, do not power.If switching part 115 is closed, from power supply unit 114 to power supply terminal 117a, power.

Data Management Department 112 is configured to each self-corresponding a plurality of mailing addresses of a plurality of states of storage and identification signal.For example, the 112 storing communication address Aa of Data Management Department, Bb, Cc (with reference to Figure 10).

Handling part 110 is configured to and carries out the processing of extension set Si allocate communications address (allocation process).Handling part 110 is configured in allocation process the extension set Si being connected with output terminal part (the first connecting portion) 117 is sent to identification signal.For example, handling part 110 is configured to from recognition terminal 117c and sends identification signal.Identification signal is for example regulation duty ratio (for example, logical signal 10:90).

Handling part 110 carries out registration process after allocation process.Handling part 110 is configured to be selected mailing address in a plurality of mailing addresses of storing in registration process Zhong Cong Data Management Department 112 and repeatedly carries out poll processing and will specify the acknowledges requests signal of selected mailing address to be sent to extension set Si.Handling part 110, after sending acknowledges requests signal, is waited for the answer signal receiving from extension set Si during at the appointed time.Answer signal is to comprise the solid numbered signal that is dispensed to extension set Si.Handling part 110 is configured to and when receiving answer signal at the appointed time, makes the intrinsic numbering of the answer signal that receives corresponding with selected mailing address.If could not receive answer signal at the appointed time, handling part 110 finishes registration are processed.Handling part 110 is by carrying out registration process, storing communication address and solid numbered corresponding relation.

In addition, handling part 110 is similarly configured to and obtains the power information relevant with the extension set Si that is connected in agent set M to execution mode 3.Handling part 110 is configured to be obtained according to power information the extension set Si that makes to be connected with power supply unit 114 and moves the first required electric power.If handling part 110 is configured to the first electric power, surpass the higher limit that power supply unit 114 can offer the second electric power of extension set Si, open switching part 115 and do not carry out from the power supply of power supply unit 114.Handling part 110 is configured to closed switching part 115 when the first electric power does not surpass higher limit and carries out from the power supply of power supply unit 114.

Extension set (setting up parts) Si has handling part (the second handling part) 120, transducer portion 121, data communication section 122, address setting portion 123 and information retaining section 124.In addition, transducer portion 121 and information retaining section 124 are identical with execution mode 3, and therefore description thereof is omitted.

Extension set Si also has output terminal part (the second connecting portion) 131 and input terminal portion (the 3rd connecting portion) 132.

Output terminal part 131 is used in and being connected of other extension set Si.Output terminal part 131 has power supply terminal 131a, communication terminal 131b, recognition terminal 131c and information terminal 131d.

Input terminal portion 132 is used in and being connected of agent set M or other extension set Si.Input terminal portion 132 has electrified terminal 132a, communication terminal 132b, recognition terminal 132c and information terminal 132d.

Extension set Si also possesses the supply lines 133 being connected between power supply terminal 131a and electrified terminal 132a and the order wire 134 connecting between communication terminal 131b, 132b.Thereby extension set Si is configured to the electric power (from the electric power of agent set M) being received by electrified terminal 132a from power supply terminal 131a output.In addition, extension set Si is configured to for example, for example, between the equipment being connected with communication terminal 131b (extension set Si) and the equipment (agent set M) that is connected with communication terminal 132b trunking traffic signal.

In the present embodiment, the output terminal part 117 of agent set M is connected with the input terminal portion 132 of extension set S1 via cable 106A.That is, the power supply terminal 117a of agent set M is connected with the electrified terminal 132a of extension set S1 via supply lines 102A.The communication terminal 117b of agent set M is connected with the communication terminal 132b of extension set S1 via order wire 103A.The recognition terminal 117c of agent set M is connected with the recognition terminal 132c of extension set S1 via identification line 107A.The information terminal 117d of agent set M is connected with the information terminal 132d of extension set S1 via information wire 104A.

The output terminal part 131 of extension set S1 is connected with the input terminal portion 132 of extension set S2 via cable 106B.That is, the power supply terminal 131a of extension set S1 is connected with the electrified terminal 132a of extension set S2 via supply lines 102B.The communication terminal 131b of extension set S1 is connected with the communication terminal 132b of extension set S2 via order wire 103B.The recognition terminal 131c of extension set S1 is connected with the recognition terminal 132c of extension set S2 via identification line 107B.The information terminal 131d of extension set S1 is connected with the information terminal 132d of extension set S2 via information wire 104B.

Address setting portion 123 be configured to storage for and agent set M between the mailing address of unicast communication.

Data communication section 122 is connected with order wire 134.Thereby data communication section 122 is configured to via order wire 134 receiving communication signals.

Handling part 120 is configured to and when receiving identification signal, carries out address setting processing and identification signal transmission processing.

Handling part 120 is configured in address setting is processed and stores mailing address corresponding to the state of the identification signal with receiving into address setting portion 123.

In the present embodiment, handling part 120 is configured to each self-corresponding a plurality of mailing addresses of a plurality of states of storage and identification signal.For example, handling part 120 is configured to the table shown in storage Figure 10.

Thereby when receiving identification signal via recognition terminal 132c, handling part 120 is selected the mailing address corresponding with the state (being duty ratio in the present embodiment) of the identification signal receiving from a plurality of mailing addresses.And handling part 120 makes the selected mailing address of address setting portion 123 storage.

For example, handling part 120, when reception duty ratio is the logical signal of " 10:90 ", is selected the mailing address " Aa " corresponding with this duty ratio, stores address setting portion 123 into.When receiving the logical signal that duty ratio is " 20:80 ", handling part 120 is selected the mailing address " Bb " corresponding with this duty ratio, stores address setting portion 123 into.

Handling part 120 is configured in identification signal transmission processing the identification signal of the different state of the identification signal from receiving is sent to the extension set Si being connected with the second connecting portion 131.That is, handling part 120 is when receiving identification signal via recognition terminal 132c, via the recognition terminal 131c output state identification signal different from the identification signal receiving.

About handling part 120, for example, when receiving identification signal, handling part 120 rule according to the rules converts the identification signal receiving, and generates thus the identification signal with the identification signal different conditions receiving.

For example, handling part 120 is when receiving the logical signal that duty ratio is " 10:90 ", and generating output duty cycle is the logical signal of " 20:80 ".In addition, handling part 120 is when receiving the logical signal that duty ratio is " 20:80 ", and generating output duty cycle is the logical signal of " 30:70 ".Like this, handling part 120 increases the duty ratio (state of identification signal) of identification signal (logical signal).

In addition, even if preferably the rule of regulation is determined also can not have the identification signal of equal state for identification signal is converted to several times.Wherein, even if also the rule of regulation can be determined also can not have the identification signal of equal state for identification signal is converted to stipulated number.At this, according to the maximum quantity of the extension set Si that can be connected with agent set M, decide stipulated number.For example, if maximum quantity is 3, even if the rule of regulation can be determined as identification signal conversion not being become yet to the identification signal of equal state for three times, also it doesn't matter in the situation that identification signal is converted to four times, to become the identification signal of equal state.

Handling part 120, when receiving acknowledges requests signal, is judged as the mailing address of whether being stored with address setting portion 123 by the specified mailing address of acknowledges requests signal consistent.

If consistent with the mailing address that address setting portion 123 stores by the mailing address that acknowledges requests signal is specified, handling part 120 is sent to agent set M by comprising the solid numbered answer signal that is dispensed to extension set Si.If the mailing address of being stored by the specified mailing address of acknowledges requests signal and address setting portion 123 is inconsistent, handling part 120 does not send answer signal.

As mentioned above, the measuring system of present embodiment possesses extension set Si and the agent set M of measure physical quantities, and this agent set M and extension set Si communicate and collect physical quantity from extension set Si.Agent set M possesses the first connecting portion 117 and the first handling part 110 that connects extension set Si.Extension set Si possess connect the second connecting portion 131, the second handling part 120 of other extension set Si and be used in storage for and agent set M between the address setting portion 123 of mailing address of unicast communication.The extension set Si that the first handling part 110 is configured to being connected with the first connecting portion 117 sends identification signal.The second handling part 120 is configured to and mailing address corresponding to the state of the identification signal with receiving is stored into address setting portion 123 when receiving identification signal and the identification signal of the identification signal different conditions with receiving be sent to the extension set Si being connected with the second connecting portion 131.

The power measurement system of present embodiment according to the above description, do not need setup and use data communication channel (communication port 52a) to set up parts allocate communications address during, can set up simply next and set up parts.

And in the measuring system of present embodiment, agent set M possesses power supply unit (power supply unit) 114, information acquisition unit (handling part) 110 and control unit (handling part) 110.The extension set Si that power supply unit 114 is configured to being connected with agent set M provides electric power.Information acquisition unit 110 is configured to obtains the power information relevant with the extension set Si that is connected in agent set M.Control unit 110 is configured to be obtained according to the power information that got by information acquisition unit 110 the extension set Si that makes to be connected with power supply unit 114 and moves the first required electric power.If control unit 110 is configured to the first electric power, surpass the higher limit that power supply unit 114 can offer the second electric power of extension set Si, from power supply unit 114, do not power, when the first electric power does not surpass higher limit, from power supply unit 114, power.

The measuring system of the present embodiment of above-mentioned explanation has can prevent along with setting up parts Si the action of the measuring system unstable this effect that becomes.

In addition, as tdescribed in embodiment 1, identification signal is not limited to logical signal, for example, can be also pulse signal, analog signal, data-signal.

(the first variation)

Figure 24 illustrates the first variation of the measuring system of present embodiment.In the first variation, the measuring system of extension set Si and execution mode 4 similarly has storage part 125 and switching part 126.

Switching part 126 is present between supply lines 133 and function part (handling part 120 and transducer portion 121).Switching part 126 is for example relay.Thereby, if switching part 126 is opened, not from 133 pairs of handling parts 120 of supply lines and 121 power supplies of transducer portion.If switching part 126 is closed, from 133 pairs of handling parts 120 of supply lines and 121 power supplies of transducer portion.

Storage part 125 is configured to storing communication with electric power and measures the total electric power (for example, the maximum consumption current value of normal mode) with electric power.Communication is that extension set Si carries out the required electric power (the maximum consumption current value of for example, low consumption pattern) of communication process of communicating by letter with agent set M by data communication section 122 with electric power.Measuring is that extension set Si carries out processing required electric power by the measurement of measuring unit 121 measure physical quantities with electric power.

Information retaining section 124 storing communication electricity consumption masterpieces are power information.

Handling part 110 is configured to extension set Si and communicates to obtain the total electric power that storage part 125 is stored.For example, handling part 110 obtains extension set S1, S2, S3 total electric power (the maximum consumption current value of normal mode) 100mA, 200mA, 100mA separately.

Handling part (control unit) 110 is configured to according to the total electric power getting from extension set Si and in the scope that is no more than higher limit (power supply unit 114 can offer the higher limit of the second electric power of extension set Si), selects to measure the extension set Si processing, and selected extension set Si is sent and drives signal.Extension set Si is configured to when receiving driving signal by data communication section 122 and controls switching part 126 and closed circuit (circuit between supply lines 133 and handling part 120 and transducer portion 121).

In the first variation of above-mentioned explanation, with the measuring system of execution mode 4 similarly, can with set up that order (position) that parts Si is connected with main element M independently selects to make having stable behavior set up parts Si.

(the second variation)

Figure 25 illustrates the second variation of the measuring system of present embodiment.

The agent set M of the second variation has handling part 110, data communication section 111, Data Management Department 112, data output section 113, power supply unit 114, switching part 115, power supply terminal 116 and the first connecting portion 117.

The first connecting portion 117 has power supply terminal 117a, communication terminal 117b and recognition terminal 117c, but does not have information terminal 117d.

Whether handling part 110 and execution mode 5 similarly, are connected with the detecting unit of extension set Si and bring into play function as the first connecting portion 117 that judges agent set M.When being judged as the first connecting portion 117 of agent set M and not connecting extension set Si, handling part 110 is opened switching part 115 and is stopped the power supply from power supply unit 114 to power supply terminal 117a.When being judged as the first connecting portion 117 of agent set M and being connected with extension set Si, the closed switching part 115 of handling part 110 and powering to power supply terminal 117a from power supply unit 114.

The extension set Si of the second variation has handling part 120, transducer portion 121, data communication section 122, switching part 128, the second connecting portion 131, the 3rd connecting portion 132, supply lines 133 and order wire 134.In addition, in Figure 25, omit configuration part, address 123.

The second connecting portion 131 has power supply terminal 131a, communication terminal 131b and recognition terminal 131c, but does not have information terminal 131d.The 3rd connecting portion 132 has electrified terminal 132a, communication terminal 132b and recognition terminal 132c, but does not have information terminal 132d.

Switching part 128 is arranged on supplying electric channel (supply lines) 133 from power supply unit 114 to other extension set Si.For example, switching part 128 is relay, and switching part 128 is inserted between electrified terminal 132a and power supply terminal 131a.Thereby, if switching part 128 is opened, can be from extension set Si pair of other extension set Si power supply being connected with its second connecting portion 131.If switching part 128 is closed, from extension set Si couple of other extension set Si being connected with its second connecting portion 131, power.

The maximum quantity that handling part 120 is configured to the extension set Si whether quantity that the mailing address of storing according to configuration part, address 123 judges the extension set Si being connected with agent set M can be connected with agent set M equates.

In addition the maximum quantity of the extension set Si that, agent set M can connect refers to the upper limit (permission number) of the quantity of the extension set Si that agent set M can normally move.

If handling part 120 is configured to the quantity of the extension set Si being connected with agent set M, equate with above-mentioned maximum quantity, close switching part 128, if the quantity of the extension set Si being connected with agent set M is less than above-mentioned maximum quantity, open switching part 128.

Handling part 120 is similarly configured to as detecting unit and brings into play function with power supply stop element with execution mode 5.That is, handling part 120 is configured to and judges whether extension set Si (the second connecting portion 131 of extension set Si) is connected with other extension set Si.Handling part 120 is configured to when being judged as and when extension set Si does not connect other extension set Si, cuts off the circuit (supply lines 133) between power supply unit (power supply unit) 114 and other extension set Si.

In the second variation of above-mentioned explanation, even will allow extension set Si more than number (maximum quantity) to be connected with agent set M mistakenly in the utilization process of measuring system, the extension set Sn (setting up parts S3 if above-mentioned example is the 3rd) of final level also stops, to rear class power supply, can preventing that thus the action of measuring system from becoming unstable.

And, switching part (power switching portion) 128 in the extension set Sn of final level maintains (disconnection) state of opening, the power supply terminal of setting up use (not shown) of setting up in parts Sn of final level is not applied to voltage thus, therefore there is this advantage of raising of the fail safe of realizing.

Claims (23)

1. a measuring system, is characterized in that, possesses:

Extension set, its measure physical quantities; And

Agent set, itself and above-mentioned extension set communicate and collect above-mentioned physical quantity from above-mentioned extension set,

Wherein, aforementioned body device possesses for connecting the first connecting portion and first handling part of above-mentioned extension set,

Above-mentioned extension set possesses the second connecting portion, the second handling part and the address setting portion for connecting other extension set, use the storage of this address setting portion for and aforementioned body device between the mailing address of unicast communication,

The above-mentioned extension set that above-mentioned the first handling part is configured to being connected with above-mentioned the first connecting portion sends identification signal,

Above-mentioned the second handling part is configured to and when receiving above-mentioned identification signal, makes the address above mentioned configuration part storage above-mentioned mailing address corresponding with the state of the identification signal receiving, and the identification signal of the identification signal different conditions with receiving is sent to the above-mentioned extension set being connected with above-mentioned the second connecting portion.

2. a measuring system, is characterized in that, possesses:

Extension set, its measure physical quantities; And

Agent set, itself and above-mentioned extension set communicate and collect above-mentioned physical quantity from above-mentioned extension set,

Wherein, aforementioned body device possesses connecting portion, the first handling part being connected with order wire and is connected test section,

Above-mentioned extension set possesses the second handling part and address setting portion, use the storage of this address setting portion for and aforementioned body device between the mailing address of unicast communication,

Above-mentioned connection test section is configured to and detects being connected of above-mentioned extension set and above-mentioned order wire,

Above-mentioned the first handling part is configured to when above-mentioned connection test section detects above-mentioned connection above-mentioned order wire is sent to above-mentioned mailing address,

Above-mentioned the second handling part is configured to the mailing address that makes address above mentioned configuration part storing received arrive when receiving above-mentioned mailing address.

3. measuring system according to claim 2, is characterized in that,

Above-mentioned the second handling part has the intrinsic numbering that is dispensed to above-mentioned extension set,

Above-mentioned the first handling part is configured to the corresponding relation of the above-mentioned intrinsic numbering of storage and above-mentioned mailing address.

4. according to the measuring system described in claim 2 or 3, it is characterized in that,

Above-mentioned the first handling part is configured to when above-mentioned connection test section detects above-mentioned connection above-mentioned order wire is sent to request signal,

Above-mentioned the second handling part is configured to when receiving above-mentioned request signal and is sent to above-mentioned order wire by comprising the solid numbered answer signal that is dispensed to above-mentioned extension set,

Above-mentioned the first handling part is configured to and when receiving above-mentioned answer signal, makes above-mentioned mailing address corresponding with the above-mentioned intrinsic numbering of the answer signal receiving.

5. measuring system according to claim 4, is characterized in that,

Above-mentioned extension set is configured to be had for connecting the second connecting portion of second extension set different from above-mentioned extension set,

Above-mentioned extension set is connected above-mentioned the second extension set being connected with above-mentioned the second connecting portion via above-mentioned order wire with the above-mentioned connecting portion of aforementioned body device.

6. measuring system according to claim 5, is characterized in that,

Above-mentioned extension set also possesses the second connection test section,

Above-mentioned second connects test section is configured to judge whether above-mentioned the second connecting portion is connected with above-mentioned the second extension set,

Above-mentioned the second handling part is configured to when above-mentioned second connects test section and be judged as above-mentioned the second connecting portion and be connected with above-mentioned the second extension set, and will set up detection information and be sent to aforementioned body device,

Above-mentioned the first handling part is configured to when receiving the above-mentioned above-mentioned mailing address of above-mentioned the second extension set being used while setting up detection information and is sent to above-mentioned order wire.

7. measuring system according to claim 5, is characterized in that,

Above-mentioned extension set also possesses switching part, and this switching part is used for making the path between above-mentioned order wire and above-mentioned the second connecting portion open and closed,

Above-mentioned the second handling part is configured to closed above-mentioned switching part after above-mentioned answer signal is sent to aforementioned body device and above-mentioned the second connecting portion is connected with above-mentioned order wire,

If above-mentioned the first handling part is configured to from sending above-mentioned request signal and does not also receive above-mentioned answer signal through the stipulated time, finish the transmission of above-mentioned request signal.

8. according to the measuring system described in claim 1 or 2, it is characterized in that,

Aforementioned body device possesses:

Power supply unit, it provides electric power to the above-mentioned extension set being connected with aforementioned body device;

Information acquisition unit, it obtains the power information relevant with the above-mentioned extension set that is connected in aforementioned body device; And

Control unit,

Wherein, above-mentioned control unit is according to the above-mentioned power information being got by above-mentioned information acquisition unit, and obtain the whole above-mentioned extension set that makes to be connected with above-mentioned power supply unit and move the first required electric power,

If above-mentioned the first electric power exceeds the higher limit that above-mentioned power supply unit can offer the second electric power of above-mentioned extension set, above-mentioned control unit is not powered from above-mentioned power supply unit, and when above-mentioned the first electric power does not exceed above-mentioned higher limit, above-mentioned control unit is not powered from above-mentioned power supply unit.

9. measuring system according to claim 8, is characterized in that,

Above-mentioned extension set possesses the Information preservation unit that keeps above-mentioned power information,

Above-mentioned power information means the information of the power consumption of above-mentioned extension set,

Above-mentioned information acquisition unit is configured to from above-mentioned Information preservation unit and obtains above-mentioned power information.

10. measuring system according to claim 9, is characterized in that,

Above-mentioned Information preservation unit is the resistive element with the resistance value corresponding with above-mentioned power consumption,

Above-mentioned information acquisition unit is configured to by detecting with the corresponding physical quantity of resistance value of above-mentioned resistive element and obtains above-mentioned power information.

11. measuring systems according to claim 9, is characterized in that,

Above-mentioned power information means the information of the current sinking of above-mentioned extension set,

Above-mentioned Information preservation unit is the resistive element with the resistance value corresponding with above-mentioned current sinking,

Above-mentioned information acquisition unit is configured to by detecting with the corresponding physical quantity of resistance value of above-mentioned resistive element and obtains above-mentioned information.

12. according to the measuring system described in claim 10 or 11, it is characterized in that,

Above-mentioned information acquisition unit is connected with a pair of information wire,

Above-mentioned extension set is configured to above-mentioned resistive element when being connected with aforementioned body device and is connected between above-mentioned a pair of information wire,

Above-mentioned information acquisition unit is configured to the size of electric current mobile when applying constant voltage between above-mentioned a pair of information wire and obtains above-mentioned power information.

13. measuring systems according to claim 8, is characterized in that,

Above-mentioned extension set also possesses:

Communication unit, itself and aforementioned body device communicate;

Measuring unit, it measures above-mentioned physical quantity;

Switch unit, it is for making circuit open and the closure between above-mentioned power supply unit and above-mentioned measuring unit; And

Memory cell,

Wherein, said memory cells is configured to electric power and the total electric power of measuring with electric power for storing communication,

Above-mentioned communication electric power is that above-mentioned extension set carries out the required electric power of communication process of communicating by letter with aforementioned body device by above-mentioned communication unit,

Above-mentioned measurement electric power is that required electric power is processed in the measurement that above-mentioned extension set carries out measuring by above-mentioned measuring unit above-mentioned physical quantity,

Above-mentioned power information means the information of electric power for above-mentioned communication,

Aforementioned body device is configured to and communicates with above-mentioned extension set and obtain the above-mentioned total electric power that said memory cells is stored,

Above-mentioned control unit is configured to according to the above-mentioned total electric power getting from above-mentioned extension set, and the above-mentioned extension set that above-mentioned measurement processing is carried out in selection in the scope that does not exceed above-mentioned higher limit sends and drives signal selected above-mentioned extension set,

Above-mentioned amplifying device is configured to and when receiving above-mentioned driving signal by above-mentioned communication unit, controls the next closed foregoing circuit of above-mentioned switch unit.

14. according to the measuring system described in claim 1 or 2, it is characterized in that,

Aforementioned body device possesses power supply unit, and this power supply unit pair above-mentioned extension set being connected with aforementioned body device provides electric power,

Above-mentioned extension set possesses:

Switch unit, it is arranged at the electric channel that supplies from above-mentioned power supply unit to other extension set, for making above-mentioned power supply channel opener and closure; And

Supply control unit,

Wherein, the above-mentioned mailing address that above-mentioned supply control unit is stored according to address above mentioned configuration part judges that the maximum quantity of the above-mentioned the extension set whether quantity of the above-mentioned extension set being connected with aforementioned body device can be connected with aforementioned body device equates

If the maximum quantity of the above-mentioned extension set that the quantity of the above-mentioned extension set being connected with aforementioned body device can be connected with aforementioned body device equates, the closed above-mentioned switch unit of above-mentioned supply control unit,

If the quantity of the above-mentioned extension set being connected with aforementioned body device is less than the maximum quantity of the above-mentioned extension set that aforementioned body device can be connected, above-mentioned supply control unit is opened above-mentioned switch unit.

15. measuring systems according to claim 14, is characterized in that,

Above-mentioned extension set also possesses detecting unit and power supply stop element,

Above-mentioned detecting unit is configured to judge whether above-mentioned extension set is connected with other extension set,

Above-mentioned power supply stop element is configured to when being judged as above-mentioned extension set and not connecting other extension set, cuts off the circuit between above-mentioned power supply unit and above-mentioned other extension set.

16. measuring systems according to claim 1, is characterized in that,

Above-mentioned the second handling part is configured to the storage a plurality of above-mentioned mailing address corresponding with a plurality of states difference of above-mentioned identification signal,

Above-mentioned the second handling part is configured to the corresponding above-mentioned mailing address of state of selecting from above-mentioned a plurality of mailing addresses when receiving above-mentioned identification signal with the identification signal receiving.

17. measuring systems according to claim 1, is characterized in that,

Aforementioned body device has Data Management Department,

Above-mentioned Data Management Department is configured to the storage a plurality of above-mentioned mailing address corresponding with a plurality of states difference of above-mentioned identification signal,

Aforementioned body device is configured to be selected mailing address and will specify the acknowledges requests signal of selected mailing address to be sent to above-mentioned extension set above-mentioned a plurality of mailing addresses of storing from above-mentioned Data Management Department,

If it is consistent that above-mentioned extension set is configured to the above-mentioned mailing address of being stored with address above mentioned configuration part by the specified above-mentioned mailing address of above-mentioned acknowledges requests signal, by comprising the solid numbered answer signal that is dispensed to above-mentioned extension set, be sent to aforementioned body device

Aforementioned body device is configured to and when receiving above-mentioned answer signal, makes selected above-mentioned mailing address corresponding with the above-mentioned intrinsic numbering of the answer signal receiving.

18. measuring systems according to claim 1, is characterized in that,

The rule that above-mentioned the second handling part is configured to when receiving above-mentioned identification signal according to the rules converts the identification signal receiving, and generates thus the identification signal with the identification signal different conditions receiving.

19. measuring systems according to claim 18, is characterized in that,

Even the rule of afore mentioned rules is determined also not have the identification signal of equal state for identification signal is converted to several times.

20. measuring systems according to claim 19, is characterized in that,

Above-mentioned identification signal is logical signal,

The rule of afore mentioned rules is the duty ratio that reduces or increase above-mentioned logical signal.

21. measuring systems according to claim 19, is characterized in that,

Above-mentioned identification signal is pulse signal,

The rule of afore mentioned rules is the umber of pulse that reduces or increase above-mentioned pulse signal.

22. measuring systems according to claim 19, is characterized in that,

Above-mentioned identification signal is analog signal,

The rule of afore mentioned rules is to reduce or improve the magnitude of voltage of above-mentioned analog signal.

23. measuring systems according to claim 19, is characterized in that,

Above-mentioned identification signal is data-signal,

The rule of afore mentioned rules is the parameter that reduces or increase above-mentioned data-signal.

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