CN202815088U - Smart electric energy meter and meter reading system for public utility instruments - Google Patents
Smart electric energy meter and meter reading system for public utility instruments Download PDFInfo
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- CN202815088U CN202815088U CN 201220417850 CN201220417850U CN202815088U CN 202815088 U CN202815088 U CN 202815088U CN 201220417850 CN201220417850 CN 201220417850 CN 201220417850 U CN201220417850 U CN 201220417850U CN 202815088 U CN202815088 U CN 202815088U
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Abstract
The utility model discloses a smart electric energy meter, which comprises: a signal acquisition unit, which is used for accessing to a grid power line; a signal processing unit, which is used for receiving, calculating and processing digital signal values of the signal acquisition unit; a communication terminal, which is used for receiving communication requests or sending data; and a control unit, which is used for controlling obtainment of external data information of the smart electric energy meter and sending data. The control unit is connected with the signal processing unit and the communication terminal. The utility model also discloses a meter reading system for public utility instruments. The meter reading system comprises a terminal system, the smart electric energy meter, a water meter, a gas meter and a heat meter, wherein the water meter, the gas meter and the heat meter are in communication connection through an M-BUS bus. The smart electric energy meter communicates with the terminal system through a wireless network. The meter reading system does not require an electricity utilization information data acquisition device and a data concentrator, enables different public utility instruments to be connected on the M-BUS bus for control and management, and has advantages that power consumption is relatively low, communication is stable, structure is concise and cost is low.
Description
Technical field
The utility model relates to utility commodity (such as water, electricity, rock gas etc.) surveying instrument instrument field, more particular words it, the utility model relates to the intelligent electric energy meter of a kind of alternate data collector or concentrator devices, and the automatic meter reading system that comprises this intelligent electric energy meter.
Background technology
The remote meter reading mode of civilian instrument is to carry out communication by the RS485 bus and data are copied and accepted by a data collector, then these data is sent to a data concentrator devices, carries out communication and data upload by concentrator and data managing terminal system again.And opposite, the order of data managing terminal system also needs to pass through terminal system, and---this annexation of concentrator---collector---electric energy meter sends and transmits.
Therefore, need in addition assembling collector and concentrator devices, for the user who disperses is installed, the ammeter of its indoor installing extremely is not suitable for re-using the communication scheme of RS485 or similar wireless mode, arbitrary grade of intermediate node fault all can cause rear class table meter can't carry out data reading, even and used the GPRS communication modes, then need equally the independent GPRS external module of installing, and needing embedding special-purpose SIM card and battery to use, cost is higher.
And all send data to collector equipment by the table meter in the present civilian instrument field, the most novel technology is effective connection that the form of use heartbeat frame is kept a data communication, be every self-defining inquiry frame of one-period timed sending of crossing, avoid answering equipment to interrupt this connection because waiting as long for.If it will be understood by those skilled in the art that to send in this way data, a large amount of heartbeat frames will increase communication power consumption and expense undoubtedly, for example use GPRS network to carry out communication, then send informational needs and pay communication fee to network operator.Simultaneously, this mode causes the continuing to increase of data processing amount of front end processor in the AMR system.
The utility model content
The utility model is intended to solve the defective that prior art exists, and the data acquisition equipment that the AMR system must use in the prior art and concentrator have been removed by centralized automatic meter-reading (AMR) system that designs a kind of intelligent electric energy meter and install this intelligent electric energy meter.In preferred embodiment of the present utility model, with the equipment of intelligent electric energy meter as a server or client class, it can directly be set up with external data collection management terminal and effectively be connected reliably in real time, exempted the process that data send and sorting is processed, problem and the power consumption of having avoided simultaneously data transmission to occur, simultaneously can be because not installed multiple assembly cost and the volume weight of increase table meter.
In another preferred embodiment of the present utility model, by the mode of M-BUS bus, multiple utility meter (for example water meter, gas meter or hotlist) is connected to the utility model intelligent electric energy meter, copy technology in the data connection of realizing multiple table.Similarly, mode setting data collecting device in an effective coverage by bus, obtain other instrument data message of (comprising electric energy meter), can substitute like this data acquisition of the prior art and sorting function device, also exempted the puzzlement of field wiring.
In order to realize above-mentioned purpose of design, the technical solution of the utility model 1, design a kind of intelligent electric energy meter, be equiped with therein the processor and the controller that intercouple together, processor is used for receiving and processing electric power energy consumption data information, and receiving the data command that controller sends, simultaneous processor can be controlled the data message that described controller obtains external source again, or sends data command to outside device end.
In order to realize above-mentioned purpose of design, the technical solution of the utility model 2 designs a kind of utility meter kilowatt meter reading-out system system, comprising the utility meter of aforesaid intelligent electric energy meter and other types, is connected by bus mode.
Technical scheme 1: a kind of intelligent electric energy meter, it is arranged between electric network power line and the electrical network user load, comprising: signal gathering unit, be used for the access electric network power line, further obtain its electric current and voltage signal and convert the electric power digital signal value to; Signal processing unit is used for receiving these electric power digital signal values and calculating with data and process; Communication terminal is used for receiving communication request or sends data; Further comprise: control module, be used for control data are obtained and sent to the external data information of described intelligent electric energy meter, described control module is connected with communication terminal with signal processing unit by several interfaces.
Further, in preferred embodiment of the present utility model, comprise transformer PT and power-supply device be used to the operating voltage that the intelligent electric energy meter intraware is provided, be used for line voltage and current conversion are become the operating voltage of signal processing unit and the required 5V of control module and 15V.
Further, in preferred embodiment of the present utility model, in control module, set a power control terminal, be used for the needed communication voltage of communication control end, the frequency required because of dissimilar communications is different with power consumption, so need to judge in advance the communication type by control module, carry out subsequently the PORT COM setting, then communication terminal is carried out Communication Control.
Further, in preferred embodiment of the present utility model, comprise that it is electrically connected mutually with control module for the LCD display that shows electric energy consumption consumption and external data information.
Further, in preferred embodiment of the present utility model, at signal processing unit and control module the UART interface is set respectively, is used for the mutual sending and receiving of data message between the two.Setting data gathers module and interface class in FLASH unit of signal processing unit or RAM, and setting data is processed module and interface class order in the FLASH of control module or RAM.
In preferred embodiment of the present utility model, when electric energy meter works, signal processing unit sends data acquisition command CHECK_M to control module, or communication interface class order SMS_PROMPT, with the control control module external unit is carried out data acquisition, for example other electric energy meters in the effective communication zone are carried out electric quantity data and gather, make the utility model intelligent electric energy meter realize the function of a data collecting device with this.
In another preferred embodiment of the present utility model, when electric energy meter works, control module sends data processing command STAT_M to signal processing unit, makes the utility model electric energy meter as a data concentrator devices with this, realizes sorting and processing to the electric power energy consumption data.
Technical scheme 2: a kind of utility meter kilowatt meter reading-out system, it comprises terminal system, and comprises and further comprise water meter, gas meter and hotlist by foregoing intelligent electric energy meter.Wherein, described intelligent electric energy meter and water meter, gas meter and hotlist be by the M-BUS bus in addition communication be connected, described intelligent electric energy meter is by carrying out communication between wireless network and the terminal system.
Further, in preferred embodiment of the present utility model, be equiped with the response unit for reception and reply data information in described water meter, gas meter and the hotlist, described intelligent electric energy meter obtains public commodity consumption data message by the M-BUS bus to water meter, gas meter and hotlist, with this as a data collecting device.
Further, in preferred embodiment of the present utility model, described intelligent electric energy meter is to send data message by the control module that wherein arranges to water meter, gas meter and hotlist to obtain order.
Further, in preferred embodiment of the present utility model, described intelligent electric energy meter is connected with WLAN, WIFI, 3G or ADSL wireless mode by between its communication terminal and the terminal system.
Preferred embodiment of the present utility model abandoned current kilowatt meter reading-out system power information data acquisition equipment and the data concentrator equipment that must use, and different utility meters is connected on the M-BUS bus.1) obtain the public commodity consumption data message of other utility meters by the special-purpose integrated unit of installing in the ammeter, with this as a data collecting device.2) by the inner communication module of installing of ammeter, can make it directly to carry out effective communication (such as passing through the networks such as GSM, 3G, WIFI with the terminal main station system, or the simplest PLC communication), and utilize the inside chip realization to the sorting function of data, substituted the function of a data concentrator devices with this.3) in the order of table meter inner setting, having abandoned needs timed sending heartbeat frame to obtain response message in the routine techniques, guarantee telecommunication network table meter consistently online, and utilize the bus power line power supply, power consumption is lower, and communication robust, and the utility model is simple for structure, reduce cost, had significant social and economic benefits.
Description of drawings
Preferred implementation of the present utility model will be following by embodying with reference to the mode of accompanying drawing in detail, and the identical function components/modules among the figure is with same-sign mark in addition, wherein
Fig. 1 is the functional structure schematic diagram of the utility model intelligent electric energy meter;
Fig. 2 is the structure principle chart of the utility model kilowatt meter reading-out system;
Fig. 3 is that the data of the utility model kilowatt meter reading-out system send and the process flow diagram of replying.
Embodiment
Fig. 1 schematically shows the preferred embodiment of the utility model intelligent electric energy meter, and it is arranged between electric network power line SPL and the electrical network user load LD, comprising:
Further, in preferred embodiment of the present utility model, comprise transformer PT and power supply 15 be used to the operating voltage that the intelligent electric energy meter intraware is provided, be used for line voltage and current conversion are become the operating voltage of dsp chip 11 and MCU chip 13 required 5V and 15V.
Further, in preferred embodiment of the present utility model, set a power control terminal 132 in the MCU chip 13, be used for communication control end 12 needed communication voltages, the frequency required because of dissimilar communications is different with power consumption, so need to judge in advance the communication type by MCU chip 13, carry out subsequently the PORT COM setting, then communication terminal 12 is carried out Communication Control.
Further, in preferred embodiment of the present utility model, comprise that it is electrically connected mutually with MCU chip 13 for the display 16 that shows electric energy consumption consumption and external data information.
Further, in preferred embodiment of the present utility model, at dsp chip 11 and MCU chip 13 the UART interface is set respectively, is used for the mutual sending and receiving of data message between the two.Setting data gathers module and interface class in FLASH unit of dsp chip 11 or RAM, and setting data is processed module and interface class in the FLASH of MCU chip 13 or RAM.
For example, in preferred embodiment of the present utility model, when electric energy meter works, dsp chip 11 sends data acquisition command CHECK_M to MCU chip 13, or communication interface class order SMS_PROMPT, carry out data acquisition with 13 pairs of external units of control MCU chip, for example other electric energy meters in the effective communication zone are carried out electric quantity data and gather, make the utility model electric energy meter realize the function of a data collecting device with this.
For example, in another preferred embodiment of the present utility model, when electric energy meter worked, MCU chip 13 sent data processing command STAT_M to dsp chip 11, make the utility model electric energy meter as a data concentrator devices with this, realize sorting and processing to the electric power energy consumption data.
Fig. 2 schematically shows a kind of utility meter kilowatt meter reading-out system, and it comprises terminal system 5, and comprises foregoing intelligent electric energy meter 1, further comprises water meter 2, gas meter 3 and hotlist 4.Wherein, intelligent electric energy meter 1 and water meter 2, gas meter 3 and hotlist 4 be by the M-BUS bus form in addition communication be connected, intelligent electric energy meter 1 is by carrying out communication between wireless network and the terminal system 5.
Further, in preferred embodiment of the present utility model, be equiped with respectively the response unit 21,31,41 for reception and reply data information in water meter 2, gas meter 3 and the hotlist 4, intelligent electric energy meter 1 obtains public commodity consumption data message by the M-BUS bus to water meter 2, gas meter 3 and hotlist 4, with as a data collecting device.
Further, in preferred embodiment of the present utility model, described intelligent electric energy meter 1 is to send data message by the control module 13 that wherein arranges to water meter 2, gas meter 3 and hotlist 4 to obtain order.
Further, in preferred embodiment of the present utility model, described intelligent electric energy meter 1 is connected with WLAN, WIFI, 3G or ADSL wireless mode by between its communication terminal 12 and the terminal system 5.
Further, in preferred embodiment of the present utility model, the M-BUS bus is to adopt wired or wireless mode, simultaneously can provide a kind of optional framework, between electric energy meter 1 and water meter 2, gas meter 3 or hotlist 4, increase an encryption device, for anti-locking system external unit obtains data by improper means.
Under any circumstance, the communication baud rate of M-BUS bus is fixed as 2400, is set to even parity check, 8 data bit and 1 position of rest.
Further, in preferred embodiment of the present utility model, in communication process, adopt the AES-128 encryption mechanism or without encryption mechanism, the byte of encrypting only is directed to the application layer data content, wherein the CRC check byte is not encrypted, if the application layer data content is not the integral multiple of 16 bytes, then need to adopt the frame byte to fill; Adopt two labels in CI territory: adopt particular frame byte representation ammeter 1 to other types utility meter 2,3,4 data to encrypt.
The equipment that connects in the M-BUS bus, except electric energy meter 1, all be provided with unique key, when equipment begins communication, obtain key, for example, the encipher interface class can be set as 0xyyH, wherein 0x represents that the interface class order of encrypting, yy represent the data length of encrypting, and can set the length value of a minimum, initializing set is 00, needs system to edit out key value according to the data header.
In preferred embodiment of the present utility model, 1) ammeter 1 sends the initialization operation frame to the other types utility meter, for example gas meter 3, when should unit 31 receiving these Frames, need to reply byte frame E5H, the communication state that needs simultaneously initialization gas meter 3 is prepared the beginning communication;
The Frame that ammeter sends is (wherein start character represents frame head, and stop character represents postamble):
| FIELD | start character | C field | A field | CS | stop character |
| DATA-HEX | 10 | 40 | xx | xx | 16 |
2) after the device initialize on the bus is finished, response unit 31 sends gas meter 3 current data messages to ammeter 1; Ammeter adopts request, and the request of data that sends is:
| start character | C field | Afield | | stop character | |
| 10 | 5B | PAddress | Verification and | 16 |
When in a single day gas meter 3 receives this claim frame, need to reply, reply content is fixed uncompensated gas consumption+gas meter 3 valve states of gas consumption+Current Temperatures of 12 byte-header content+Current Temperatures compensation, replys data content:
3) receive as above Frame when gas meter 3, then reply by response unit 31, need simultaneously the data in DATA district to be set to the address of gas meter 3 equipment, ammeter 1 will use this address and gas meter 3 to carry out communication afterwards.
4) valve of gas meter 3 need to carry out Long-distance Control by the control module (MCU chip) 13 of ammeter 1, terminal system 5 is controlled ammeter 1 by the mode of transmission information, described ammeter 1 is sent to gas meter 3 with this information again, and to carry out Long-distance Control, ammeter 1 sends Frame and is:
Wherein the XX data setting in DATA district is the 00-closing valve; 01-opens valve; 02-keeps present state.
5) ammeter 1 need to carry out time calibration after system time changes, and after gas meter 3 receives the new clock information of ammeter 1, if the mistiming exceeds 60s, then needs the set clock error flag, and with time of ammeter 1 as the new time.
6) after gas meter 3 is resetted by ammeter 1, the address zero clearing that distributes before then, the key zero clearing of encryption reverts to original state, this moment ammeter 1 transmission control frame (special long frame), gas meter 3 is replied the information of correct reception.
Being preferred implementation of the present utility model only below, being intended to embody outstanding technique effect of the present utility model and advantage, is not to be restriction to the technical solution of the utility model.Those skilled in the art will appreciate that all modifications of having done based on the utility model technology contents, variation or substitute technology feature, all should be covered by in the technology category of the utility model claims opinion.
Claims (6)
1. intelligent electric energy meter, it is arranged between electric network power line and the electrical network user load, comprising: signal gathering unit (10), be used for the access electric network power line, further obtain its electric current and voltage signal and convert the electric power digital signal value to; Signal processing unit (11) is used for receiving these electric power digital signal values and calculating with data and process; Communication terminal (12) is used for receiving communication request or sends data; It is characterized in that further comprising: control module (13), be used for control data are obtained and sent to the external data information of described intelligent electric energy meter, described control module (13) is connected 12 with signal processing unit (11) with communication terminal by several interfaces (131)) be connected.
2. intelligent electric energy meter as claimed in claim 1 is characterized in that: comprise that further it is electrically connected mutually with control module (13) for the display (16) that shows electric energy consumption consumption and external data information.
3. utility meter kilowatt meter reading-out system, it comprises terminal system (5), and comprise intelligent electric energy meter as claimed in claim 1 (1), further comprise water meter (2), gas meter (3) and hotlist (4), it is characterized in that: described intelligent electric energy meter (1) and water meter (2), gas meter (3) and hotlist (4) be by the M-BUS bus in addition communication be connected, described intelligent electric energy meter (1) is by carrying out communication between wireless network and the terminal system (5).
4. utility meter kilowatt meter reading-out system as claimed in claim 1 is characterized in that: be equiped with the response unit (21) for reception and reply data information in described water meter (2), gas meter (3) and the hotlist (4); 31; 41), described intelligent electric energy meter (1) obtains public commodity consumption data message by the M-BUS bus to water meter (2), gas meter (3) and hotlist (4), with as a data collecting device.
5. utility meter kilowatt meter reading-out system as claimed in claim 4 is characterized in that: described intelligent electric energy meter (1) is to obtain order by the control module (13) that wherein arranges to water meter (2), gas meter (3) and hotlist (4) transmission data message.
6. utility meter kilowatt meter reading-out system as claimed in claim 1 is characterized in that: described intelligent electric energy meter (1) is connected with WLAN, WIFI, 3G or ADSL wireless mode by between its communication terminal (12) and the terminal system (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417850 CN202815088U (en) | 2012-08-22 | 2012-08-22 | Smart electric energy meter and meter reading system for public utility instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417850 CN202815088U (en) | 2012-08-22 | 2012-08-22 | Smart electric energy meter and meter reading system for public utility instruments |
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| Publication Number | Publication Date |
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| CN202815088U true CN202815088U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220417850 Expired - Fee Related CN202815088U (en) | 2012-08-22 | 2012-08-22 | Smart electric energy meter and meter reading system for public utility instruments |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830281A (en) * | 2012-08-22 | 2012-12-19 | 华立仪表集团股份有限公司 | Smart electricity meter and public utility meter reading system |
| EP3013075A1 (en) * | 2014-10-20 | 2016-04-27 | Sinapsi S.r.l. | Radio repeater for automatic consumption metering systems |
-
2012
- 2012-08-22 CN CN 201220417850 patent/CN202815088U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830281A (en) * | 2012-08-22 | 2012-12-19 | 华立仪表集团股份有限公司 | Smart electricity meter and public utility meter reading system |
| CN102830281B (en) * | 2012-08-22 | 2016-04-13 | 华立科技股份有限公司 | A kind of intelligent electric energy meter and utility meter kilowatt meter reading-out system |
| EP3013075A1 (en) * | 2014-10-20 | 2016-04-27 | Sinapsi S.r.l. | Radio repeater for automatic consumption metering systems |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20180822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |