CN103983939B - Electric energy meter temperature rise based on wireless sense network accurately detects localization method and its device - Google Patents
Electric energy meter temperature rise based on wireless sense network accurately detects localization method and its device Download PDFInfo
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Abstract
Localization method and its device are accurately detected the invention discloses a kind of electric energy meter temperature rise based on wireless sense network, belong to electric energy meter detection technique field, it provides normal voltage electric current by calibrator for watt-hour meter to electric energy meter, then by wireless temperature sensing node test electric energy meter surface temperature rise detection zone temperature, and by the temperature information by wireless network transmission to host computer；The temperature information that wireless temperature sensing node is sent finally is received by host computer again, and temperature therein is made into difference comparsion with 25 DEG C of progress of temperature threshold respectively, when difference is when between 2 DEG C to 2 DEG C, to judge the temperature be the electric energy meter surface temperature sensing area where leave a question open temperature and the temperature as region of leaving a question open, the present invention can not only fast, detection electric energy meter surface temperature rise data, and electric energy meter surface temperature rise position can be accurately positioned.
Description
Technical field
Positioning electric energy meter temperature rise method and its device, category can be accurately detected by wireless sense network the present invention relates to one kind
In electric energy meter detection technique field.
Background technology
Intelligent electric energy meter temperature rise detection project is according to standard GB/T/T 17215.211-2006 (equivalent international standard IEC
7.2 in 62052-11-2003), specific requirement is " each current circuit of instrument passes to rated maximum current, each pressure-wire
Road (and those power cycles boost voltage circuit longer than its thermal time constant) loads 1.15 times of reference voltages, outer surface
Temperature rise should be no more than 25K when environment temperature is 40 DEG C.During 2h experiment, instrument should not be restricted by wind or direct sunlight
Irradiation.”
Measurement intelligent electric energy meter temperature rise at present has 2 kinds of basic skills.One kind be by plane infrared heat image instrument measuring, it is but flat
Face thermal imaging system is contactless, there is larger error, and can not be for a long time at 40 DEG C, it is impossible to multi-epitope is carried out to survey simultaneously
Amount；Another method is measured by contact tehermometer (such as temperature polling instrument), by a plurality of temperature sensor and intelligence
The surface mount connection of energy electric energy meter, is measured in real time, and the problem of so bringing is that multi-epitope multi-temperature measurement point is measured, and is had
Many lines, measurement process is very cumbersome.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provide one kind can fast, detect electric energy
External surface temperature rise and it is accurately positioned the electric energy meter temperature rise based on wireless sense network of electric energy meter surface temperature rise position and accurately examines
Survey localization method and its device.
To achieve the above object, the technical solution adopted by the present invention is：A kind of electric energy meter temperature rise based on wireless sense network
Accurate detection localization method, comprises the following steps：Step one, more than one electric energy meter is set in constant temperature and humidity room, and it is right
Differentiation is numbered in electric energy meter；More than one temperature sensing area is divided into by respective face to 6 surfaces of each electric energy meter, and
Differentiation is numbered in the temperature sensing area；Step 2, standard electric piezoelectricity is provided by calibrator for watt-hour meter to electric energy meter
Stream；Step 3, wireless network is passed through by the temperature of wireless temperature sensing node test temperature detection zone, and by the temperature information
It is transferred to host computer；Step 4, host computer receives the temperature information that wireless temperature sensing node is sent, and temperature therein is divided
Do not carry out making difference comparsion with temperature threshold, when difference is when between -2 DEG C to 2 DEG C, judge the temperature for leave a question open temperature and this
Temperature sensing area where temperature is region of leaving a question open.
Further：More than 1 time is carried out to the electric energy meter with region of leaving a question open and changes the detection of wireless temperature sensing node, and
The temperature that same temperature detection zone to same electric energy meter is detected takes arithmetic mean of instantaneous value, and the average value and temperature threshold are entered
Row compares, and when average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified.
It is preferred that：It is electric energy meter maximum rated current that the calibrator for watt-hour meter provides normal voltage electric current to electric energy meter
With 1.15 times of electric energy meter reference voltages；Environment temperature in the constant temperature and humidity room is 40 DEG C, and humidity is normal environment humidity；Institute
The each sampling period for stating wireless temperature sensing node is no longer than 3 seconds, and whole detection time is 2 hours.
It is preferred that：The number of the electric energy meter is 50；The number of the corresponding temperature sensing area in each face is
50, the temperature sensing area is uniformly distributed in electric energy meter surface；It is corresponding that the temperature information includes temperature detection area
Temperature, the numbering of electric energy meter and temperature sensing area numbering；The size of the temperature threshold is 25 DEG C；Wireless temperature is changed to pass
It is 3 times to feel node number of times.
Another object of the present invention, also provides a kind of electric energy meter temperature rise based on wireless sense network and accurately detects positioning dress
Put, including the internal thermostatic constant wet chamber for being provided with electric energy meter support, the electric energy meter support is for installing electric energy meter, and the electric energy
6 surfaces of table are respectively respectively uniformly distributed the more than one temperature sensing area of setting, and are arranged at the thermostatic constant wet chamber
Outside wireless receiving module, host computer and calibrator for watt-hour meter, one end of the calibrator for watt-hour meter, wireless receiving
Module is connected with host computer, and the other end of the calibrator for watt-hour meter is connected with electric energy meter, and the host computer passes through
Calibrator for watt-hour meter provides normal voltage electric current to electric energy meter；Also include wireless temperature sensing node, the wireless temperature is passed
Feel node be used for test temperature detection zone temperature, and by the temperature information by wireless network transmission to host computer；The nothing
Line TEMP node includes micro-control unit, and connects the wireless communication module of the micro-control unit, Flash respectively and deposit
Store up module, temperature collect module, power module；The temperature collect module includes more than one temperature sensor, and described
Temperature sensor is arranged on temperature sensing area；The temperature that wherein described temperature collect module is used for temperature sensing area is examined
Survey, and send temperature to micro-control unit；The radio address that the Flash memory modules are used for storage temperature sensor is configured
Information, the radio address configuration information is the numbering of electric energy meter and temperature sensing area numbering, and the radio address is matched somebody with somebody
Confidence breath is sent to micro-control unit；The micro-control unit is used for the temperature for receiving the transmission of temperature acquisition mould, for receiving
The radio address configuration information of Flash memory modules transmission, it is by logical operation, temperature is corresponding with radio address configuration information
Get up to form temperature information, and the temperature information is sent to wireless communication module；The wireless communication module is used for temperature
Information passes to wireless receiving module by wireless network；The power module is used to provide power supply to micro-control unit；It is described
Wireless receiving module is used for the temperature information for receiving wireless communication module transmission, and sends the temperature information to host computer；Institute
The temperature information that host computer is used to receive wireless receiving module transmission is stated, and temperature therein is made with temperature threshold respectively
Difference compares, and when difference is when between -2 DEG C to 2 DEG C, judges the temperature as the temperature detection area where leave a question open temperature and the temperature
Domain is region of leaving a question open.
It is preferred that：The host computer carries out more than 1 time to the electric energy meter with region of leaving a question open and changes wireless temperature sensing section
Point detection, and arithmetic mean of instantaneous value is taken to the temperature that the same temperature detection zone of same electric energy meter is detected, by the average value with
Temperature threshold is compared, and when average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified.
It is preferred that：The power module includes lithium battery source module, electric quantity acquisition module, DC-DC module, charging mould
Block；The one end of the lithium battery source module with charging module, one end of electric quantity acquisition module, DC-DC module is connected, simultaneously
The electric quantity acquisition module, the other end of DC-DC module are connected with micro-control unit；The DC-DC module is used for microcontroller
Unit provides DC voltage-stabilizing electric current；The electric quantity acquisition module is used to measuring the electricity of lithium battery source module, and by the electricity
Information issues micro-control unit, and the micro-control unit sends the information about power to host computer by wireless network and shown
Come；The charging module is used to give the charging of lithium battery source module.
It is preferred that：It is electric energy meter maximum rated current that the calibrator for watt-hour meter provides normal voltage electric current to electric energy meter
With 1.15 times of electric energy meter reference voltages；Environment temperature in the constant temperature and humidity room is 40 DEG C, and humidity is normal environment humidity；Institute
The each sampling period for stating wireless temperature sensing node is no longer than 3 seconds, and whole detection time is 2 hours；The electric energy meter
Number is 50；The number of the corresponding temperature sensing area in each face is 50, and the temperature sensing area is uniformly divided
It is distributed in electric energy meter surface；The size of the temperature threshold is 25 DEG C；It is 3 times to change wireless temperature sensing node number of times.
It is preferred that：The temperature sensor is connected by different GPIO mouths with micro-control unit.
Beneficial effect：A kind of electric energy meter temperature rise based on wireless sense network that the present invention is provided accurately detect localization method and
Its device, compared with prior art, has the advantages that：
1. pass through nothing due to the temperature by wireless temperature sensing node test temperature detection zone, and by the temperature information
Gauze is transferred to host computer, therefore it can be detected to the temperature sensing area on the surface of electric energy meter, therefore measurement is by connecing
Touch is measured, therefore its result is that contactless measurement result precision is reliable than plane thermal imaging system, while it uses wireless network
Network transmits information, therefore it measures convenient than contact tehermometer, while reducing the solid line transmission between data, reduces structure
Complexity, it is thus simple in construction.
2. pass through nothing due to the temperature by wireless temperature sensing node test temperature detection zone, and by the temperature information
Gauze is transferred to host computer；Then the temperature information that wireless temperature sensing node is sent is received by host computer, and will be therein
Temperature carries out being compared as difference respectively with temperature threshold, when difference is when between -2 DEG C to 2 DEG C, judge the temperature as leave a question open temperature with
And the temperature sensing area where the temperature is region of leaving a question open.Which electric energy meter what therefore it can be quickly determines and is somebody's turn to do
Temperature sensing area on which face of electric energy meter.
3. it is described wireless because 6 surfaces of each electric energy meter by respective face are divided into more than one temperature sensing area
The temperature of TEMP nodal test temperature sensing area, therefore it is than by the different point (temperature detection of approximately the same plane
Region) measure simultaneously, it is further to reduce the error caused because of measurement, thus its measurement result is more accurate.
4. because the host computer carries out more than 1 time replacing wireless temperature sensing node to the electric energy meter with region of leaving a question open
Detection, and arithmetic mean of instantaneous value is taken to the temperature that the same temperature detection zone of same electric energy meter is detected, by the average value and temperature
Degree threshold value is compared, and when average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified, therefore it is logical
Overweight recheck is surveyed, and is eliminated in the presence of because sensor error causes to measure the influence of electric energy meter result error, thus its measurement knot
Fruit is further improved.
5. because the temperature sensor is connected by different GPIO mouths with micro-control unit, therefore every piece of wireless temperature
50 temperature sensors in degree sensing node detection are connected with 50 GPIO mouthfuls of micro-control unit respectively, rather than by 50
Individual temperature sensor hangs over and is connected to micro-control unit under a bus；Because lead in system in actual use,
If 50 temperature sensors are all controlled using same GPIO mouthfuls, wherein there is sensor degradation all the way, user will be unable to
Distinguish to be specifically which sensor occurs abnormal, therefore 50 temperature sensors are connected in a bus can increase sensor
The difficulty of replacing, structure of the invention solves the problem well.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of electric energy meter temperature rise based on wireless sense network accurately detects positioner；
Fig. 2 is wireless temperature sensors structural representation；
Fig. 3 designs for temperature measuring circuit.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
A kind of electric energy meter temperature rise accurately detects localization method, as Figure 1-3, a kind of electric energy meter based on wireless sense network
Temperature rise accurately detects localization method, comprises the following steps：Step one, more than one electric energy meter is set in constant temperature and humidity room,
And electric energy meter is numbered differentiation；More than one temperature detection area is divided into by respective face to 6 surfaces of each electric energy meter
Domain, and differentiation is numbered in the temperature sensing area；Step 2, standard electric is provided by calibrator for watt-hour meter to electric energy meter
Current voltage；Step 3, nothing is passed through by the temperature of wireless temperature sensing node test temperature detection zone, and by the temperature information
Gauze is transferred to host computer；Step 4, host computer receives the temperature information that wireless temperature sensing node is sent, and by temperature therein
Degree carries out making difference comparsion respectively with temperature threshold, when difference is when between -2 DEG C to 2 DEG C, judge the temperature as leave a question open temperature with
And the temperature sensing area where the temperature is region of leaving a question open.
More than 1 time is carried out to the electric energy meter with region of leaving a question open and changes the detection of wireless temperature sensing node, and to same electricity
The temperature that the same temperature detection zone of energy table is detected takes arithmetic mean of instantaneous value, and the average value and temperature threshold are compared,
When average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified.
It is electric energy meter maximum rated current and 1.15 that the calibrator for watt-hour meter provides normal voltage electric current to electric energy meter
Times electric energy meter reference voltage；Environment temperature in the constant temperature and humidity room is 40 DEG C, and humidity is normal environment humidity；It is described wireless
Each sampling period of TEMP node is no longer than 3 seconds, and whole detection time is 2 hours.
The number of the electric energy meter is 50；The number of the corresponding temperature sensing area in each face is 50, institute
State temperature sensing area and be uniformly distributed in electric energy meter surface；The temperature information includes the corresponding temperature in temperature detection area, electricity
The numbering and temperature sensing area numbering of energy table；The size of the temperature threshold is 25 DEG C；Change wireless temperature sensing node
Number of times is 3 times.
A kind of electric energy meter temperature rise based on wireless sense network accurately detects positioner, as shown in figure 1, being provided with including inside
The thermostatic constant wet chamber of electric energy meter support, the electric energy meter support is used to install electric energy meter, and each point of 6 surfaces of the electric energy meter
The more than one temperature sensing area of setting is not uniformly distributed, and is arranged at the wireless receiving mould of the constant temperature and humidity outdoor
Block, host computer and calibrator for watt-hour meter, one end of the calibrator for watt-hour meter, wireless receiving module with host computer phase
Connect, and the other end of the calibrator for watt-hour meter is connected with electric energy meter, and the host computer is given by calibrator for watt-hour meter
Electric energy meter provides normal voltage electric current.
As shown in Figure 2,3, in addition to wireless temperature sensing node, the wireless temperature sensing node is examined for test temperature
Survey region temperature, and by the temperature information by wireless network transmission to host computer；The wireless temperature sensing node includes micro-
Control unit, and connect respectively the wireless communication module of the micro-control unit, Flash memory modules, temperature collect module,
Power module；The temperature collect module includes more than one temperature sensor, and the temperature sensor is arranged at temperature
In detection zone；Wherein described temperature collect module is used for the temperature detection of temperature sensing area, and sends temperature to micro-control
Unit processed；The Flash memory modules are used for the radio address configuration information of storage temperature sensor, the radio address configuration
Information is the numbering of electric energy meter and temperature sensing area numbering, and the radio address configuration information is sent into microcontroller list
Member；The micro-control unit is used for the temperature for receiving the transmission of temperature acquisition mould, for receiving the wireless of Flash memory modules transmission
Address configuration information, by logical operation, temperature is mapped to form temperature information with radio address configuration information, and should
Temperature information is sent to wireless communication module；The wireless communication module is used to temperature information passing to nothing by wireless network
Line receiving module；The power module is used to provide power supply to micro-control unit；The wireless receiving module is used to receive wireless
The temperature information of communication module transmission, and send the temperature information to host computer；The host computer is used to receive wireless receiving
The temperature information that module is sent, and temperature therein is compared with temperature threshold progress as difference respectively, when difference is at -2 DEG C to 2 DEG C
Between when, to judge the temperature be the temperature sensing area where leave a question open temperature and the temperature as region of leaving a question open.
The host computer carries out more than 1 time to the electric energy meter with region of leaving a question open and changes the detection of wireless temperature sensing node,
And arithmetic mean of instantaneous value is taken to the temperature that the same temperature detection zone of same electric energy meter is detected, by the average value and temperature threshold
It is compared, when average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified.
The power module includes lithium battery source module, electric quantity acquisition module, DC-DC module, charging module；The lithium
The one end of battery supply module with charging module, one end of electric quantity acquisition module, DC-DC module is connected, while the electricity
Acquisition module, the other end of DC-DC module are connected with micro-control unit；The DC-DC module is used to provide to micro-control unit
DC voltage-stabilizing electric current；The electric quantity acquisition module is used for the electricity for measuring lithium battery source module, and the information about power is issued
Micro-control unit, the micro-control unit sends the information about power to host computer by wireless network and shown；It is described to fill
Electric module is used to give the charging of lithium battery source module.
It is electric energy meter maximum rated current and 1.15 that the calibrator for watt-hour meter provides normal voltage electric current to electric energy meter
Times electric energy meter reference voltage；Environment temperature in the constant temperature and humidity room is 40 DEG C, and humidity is normal environment humidity；It is described wireless
Each sampling period of TEMP node is no longer than 3 seconds, and whole detection time is 2 hours；The number of the electric energy meter is
50；The number of the corresponding temperature sensing area in each face is 50, and the temperature sensing area is uniformly distributed in electricity
Can table surface；The size of the temperature threshold is 25 DEG C；It is 3 times to change wireless temperature sensing node number of times.
The temperature sensor is connected by different GPIO mouths with micro-control unit.
Example
Of the invention for convenience of description, the present invention has done an example by the above method, in this example, each face phase
The number of corresponding temperature sensing area only has the temperature sensor on 1, therefore each wireless temperature sensing node to be 6,
Correspond respectively to each face of each electric energy meter.
1 node master-plan
Electric energy meter temperature rise based on wireless sense network accurately detects positioner mainly by with the wireless of temperature sensor
Sensing node is constituted, and is a kind of application of typical radio sensing network in industrial occasions.Wireless sense network in this project
The design of network node needs to meet claimed below：
(1) temperature measurement range (room temperature~+100) DEG C, measurement accuracy ± 1 DEG C；
(2) sensing node can at least gather the signal of 6 tunnel temperature channels, and the sampling period is no longer than 3 seconds；
(3) wireless sensing node needs to transmit data to Centroid in 1 second after collecting the data；
(4) while the temperature rise data of many (such as 50) the block electric energy meters of detection, the communication of wireless data need to be reliable and stable；
(5) wireless sensing terminal node is battery powered, and wireless communication networks must have relatively low power consumption；
(6) when battery electric quantity is too low, user, which need not remove battery, directly to be charged to battery；
(7) when temperature sensor is damaged, the replacing of sensor need to be simple and convenient.
2 design of joints
One of requirement of wireless sensing node design is exactly to meet the demand of user while having good expansion, eventually
The hardware configuration of end node as shown in Fig. 2 terminal node hardware circuit by MCU, wireless communication module, LCD display module,
Flash memory modules, temperature collect module, electric quantity acquisition module, DC-DC module, charging module are constituted.MCU is used as terminal section
The core of point, controls the normal operation of whole terminal node；Wireless communication module is as between terminal node and coordinator node
The bridge of communication, the normal communication operation to whole wireless network provides hardware supported.LCD display unit is used for display terminal
The working condition of node, such as temperature data, electric quantity of lithium battery, system exception state, it is considered to the energy efficiency of terminal node, be
LCD is closed when system is normally run；Flash memory cell is mainly used in storing the address configuration of terminal node so that
Terminal node is logically mutually bound with corresponding electric energy meter；Temperature collect module is mainly used in gathering the temperature of electric energy meter；Terminal
The energy of node all derives from lithium battery, it is contemplated that the voltage of single lithium battery is general in 3.6V-4.2V, in order to be provided to circuit
One stable voltage, then need the DC-DC DC voltage-stabilizing modules of a low pressure drop；The major function of electric quantity acquisition module is to survey
Terminal node electric quantity of lithium battery is measured, facilitates observation of the user to node battery electric quantity；Usb interface unit has in terminal node
Double action, provides lithium cell charging unit energy source and the configuration provides interface for terminal node.
The software configuration of terminal node includes the foreground program being made up of interrupt routine and the backstage being made up of polling system
Program two parts are constituted.Foreground program is specially that less radio-frequency (RF) receives interrupt routine, USB reception data outages program, determined
When device T3 interrupt routines, P0 mouthfuls of external interrupt programs and P1 mouthfuls of external interrupt programs.In terminal node, USB interface is mainly used
In the address configuration for receiving inspection software；RF receives the main function interrupted to receive acknowledgement frame, data frame and command frame, and will
The data that RF is received are from register reads data buffer zone, for background program processing；Timer T3 interrupt routines are mainly used
Periodic signal is provided in the collection to temperature.Foreground program is provided by way of mask after corresponding program state flag bit confession
Chaptrel askes system queries, and polling system performs corresponding program by determining program state flag bit.
3 key technologies
3.1 wireless communication lines are designed
The core of node hardware platform is a with the radio frequency SOC CC2531f256 that MCU frequency ranges are 2.4GHz.
MCU and radio circuit design principle figure are as shown in figure 3, the design of the circuit mainly includes power circuit, radio circuit and processing
The part of device interface circuit three.
CC2531f256 energy comes from the 3.3V voltages of bottom plate offer, but needs to carry out at stability this voltage
Reason, first power supply are by inductance of the value for 1mH, to reduce exchange, the interference of high-frequency signal, while the 8 of CC2531f256
Individual power pins are connected to 100nf electric capacity to ensure supply voltage stability respectively.
CC2531f256 radiofrequency signal takes differential signal, and its optimum load is 69+j29 Ω, and impedance matching circuit is needed
To be adjusted correspondingly according to this numerical value, the balun circuit used using 50 Ω single whip antenna, impedance matching circuit, bar
Human relations circuit is made up of lower-cost electric capacity and inductance.Processor interface circuit provides USB interface and GPIO mouthfuls to motherboard,
It is 20mA by driving force in usb circuit to complete the functions such as USB communications, temperature acquisition and battery electric quantity collection
GPIO mouth P1_0, drive 1.5K pull-up resistor, to notify inspection and identification of the host computer to USB device, while USB's
The electric capacity and resistance that 47pF has been respectively coupled in USB_N and USB_P are 33 Ω resistance, to protect the quality of usb signal.
In the PCB of wireless communication module is drawn, maximum difficulty comes from the drafting of balun circuit, balun circuit PCB
Design, directly influence the performance of wireless telecommunications.Except the design of balun circuit is external, wireless communication module radio frequency is influenceed
Another key factor of energy is exactly PCB Electro Magnetic Compatibility (EMC) design.Electric energy meter temperature rise detecting system wireless communication module
EMC design mainly consider the following aspects：
● ensure the complete and uniformity of ground wire.Wiring when as far as possible the ground region of bulk is split so that
Ground wire can be uniformly distributed on circuit boards, be done between top plate and the ground wire of bottom using the connection of a large amount of vias；
● do not connected up near balun circuit, to reduce interfering between normal signal and radiofrequency signal；And constitute
The electric capacity and inductance of balun circuit all use 0402 encapsulation, the influence with less package dimension to radiofrequency signal；
● there is ground wire below the 32MHZ of use crystal oscillator and as far as possible close to radio frequency chip, to improve the precision of crystal oscillator；
● signal wire and power line all need to be handled, and the thickness of adjacent signals line is identical and cabling is parallel, power line
Handled overstriking and with ensureing the quality of power supply signal by way of filter capacitor and inductance connection.
3.2 temperature collection circuits are designed
Temperature sensor uses digit chip DS18B20 in electric energy meter temperature rise detecting system, its measurement range, measurement
Precision, measuring speed and repeatability can meet the demand of the system.Though DS18B20 is a unibus equipment, this
The 6 pieces of DS18B20 used in system are not hung under a bus, but 6 GPIO mouthfuls respectively at MCU are connected, main
If in view of in system in actual use, the problem of changing inconvenient caused by the damage of sensor.If 6 pieces
DS18B20 is controlled using same GPIO mouthfuls, wherein there is sensor degradation all the way, user will be unable to distinguish which is specifically
Exception occurs for sensor all the way, because 6 pieces of DS18B20, which are connected in a bus, can increase the difficulty of replacing sensor.Hard
In part design, DS18B20 and MCU connection, DS18B20 use 3 wire type connections of standard.When being powered to DS18B20, use
One switch mosfet device controls DS18B20 power supply, to reduce energy loss when DS18B20 does not work.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of electric energy meter temperature rise based on wireless sense network accurately detects positioner, it is characterised in that：It is provided with including inside
The thermostatic constant wet chamber of electric energy meter support, the electric energy meter support is used to install electric energy meter, and each point of 6 surfaces of the electric energy meter
The more than one temperature sensing area of setting is not uniformly distributed, and is arranged at the wireless receiving mould of the constant temperature and humidity outdoor
Block, host computer and calibrator for watt-hour meter, one end of the calibrator for watt-hour meter, wireless receiving module with host computer phase
Connect, and the other end of the calibrator for watt-hour meter is connected with electric energy meter, and the host computer is given by calibrator for watt-hour meter
Electric energy meter provides normal voltage electric current；Also include wireless temperature sensing node, the wireless temperature sensing node is used to test temperature
Spend detection zone temperature, and by the temperature information by wireless network transmission to host computer；The wireless temperature sensing node bag
Micro-control unit is included, and connects the wireless communication module of the micro-control unit, Flash memory modules, temperature acquisition respectively
Module, power module；The temperature collect module includes more than one temperature sensor, and the temperature sensor is arranged at
On temperature sensing area；Wherein described temperature collect module is used for the temperature detection of temperature sensing area, and temperature is sent to
Micro-control unit；The Flash memory modules are used for the radio address configuration information of storage temperature sensor, the radio address
Configuration information is the numbering of electric energy meter and temperature sensing area numbering, and the radio address configuration information is sent into microcontroller
Unit；The micro-control unit is used for the temperature for receiving the transmission of temperature acquisition mould, the nothing for receiving the transmission of Flash memory modules
Line address configuration information, by logical operation, temperature is mapped to form temperature information with radio address configuration information, and will
The temperature information is sent to wireless communication module；The wireless communication module is used to pass to temperature information by wireless network
Wireless receiving module；The power module is used to provide power supply to micro-control unit；The wireless receiving module is used to receive nothing
The temperature information of line communication module transmission, and send the temperature information to host computer；The host computer is used to receive wirelessly to connect
The temperature information that module is sent is received, and temperature therein is compared with temperature threshold progress as difference respectively, when difference is at -2 DEG C to 2
When between DEG C, to judge the temperature be the temperature sensing area where leave a question open temperature and the temperature as region of leaving a question open.
2. the electric energy meter temperature rise according to claim 1 based on wireless sense network accurately detects positioner, its feature exists
In：The host computer carries out more than 1 time to the electric energy meter with region of leaving a question open and changes the detection of wireless temperature sensing node, and to same
The temperature that the same temperature detection zone of one electric energy meter is detected takes arithmetic mean of instantaneous value, and the average value is compared with temperature threshold
Compared with when average value is more than threshold value, the electric energy meter where judging the temperature sensing area is unqualified.
3. the electric energy meter temperature rise according to claim 2 based on wireless sense network accurately detects positioner, its feature exists
In：The power module includes lithium battery source module, electric quantity acquisition module, DC-DC module, charging module；The lithium battery
The one end of power module with charging module, one end of electric quantity acquisition module, DC-DC module is connected, while the electric quantity acquisition
Module, the other end of DC-DC module are connected with micro-control unit；The DC-DC module is used to provide direct current to micro-control unit
Electric current of voltage regulation；The electric quantity acquisition module is used for the electricity for measuring lithium battery source module, and the information about power is issued into micro-control
Unit processed, the micro-control unit sends the information about power to host computer by wireless network and shown；The charging mould
Block is used to give the charging of lithium battery source module.
4. the electric energy meter temperature rise according to claim 3 based on wireless sense network accurately detects positioner, its feature exists
In：It is electric energy meter maximum rated current and 1.15 times of electric energy that the calibrator for watt-hour meter provides normal voltage electric current to electric energy meter
Table reference voltage；Environment temperature in the constant temperature and humidity room is 40 DEG C, and humidity is normal environment humidity；The wireless temperature is passed
The each sampling period for feeling node is no longer than 3 seconds, and whole detection time is 2 hours；The number of the electric energy meter is 50；Institute
The number for stating the corresponding temperature sensing area in each face is 50, and the temperature sensing area is uniformly distributed in electric energy meter
Face；The size of the temperature threshold is 25 DEG C；It is 3 times to change wireless temperature sensing node number of times.
5. the electric energy meter temperature rise according to claim 4 based on wireless sense network accurately detects positioner, its feature exists
In：The temperature sensor is connected by different GPIO mouths with micro-control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199653.7A CN103983939B (en) | 2014-05-12 | 2014-05-12 | Electric energy meter temperature rise based on wireless sense network accurately detects localization method and its device |
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| CN105607027A (en) * | 2015-12-17 | 2016-05-25 | 郑州三晖电气股份有限公司 | High-low temperature weather effect testing device for electric energy meter |
| CN105806514B (en) * | 2016-05-17 | 2018-11-09 | 北京航星机器制造有限公司 | Realize the method quickly screened when wearable wireless thermometers batch production |
| CN107290070A (en) * | 2017-08-04 | 2017-10-24 | 河北为信电子科技股份有限公司 | A kind of efficient wireless temperature measurement method of intelligent power saving formula and its device |
| CN110207857B (en) * | 2019-07-04 | 2024-07-19 | 南京飞腾电子科技有限公司 | Verification device and method for detecting temperature of wiring terminal of electric energy meter |
| CN112684232B (en) * | 2021-02-01 | 2022-03-25 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter capable of preventing electricity theft |
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| CN102162842B (en) * | 2011-05-25 | 2013-04-10 | 重庆市电力公司电力科学研究院 | Online check meter of high-voltage electric energy metering device |
| CN202511890U (en) * | 2012-02-24 | 2012-10-31 | 保定华电电气有限公司 | Temperature on-line monitoring device for high voltage equipment |
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| 一种电能表自动测试***的设计;李博等;《仪器仪表标准化与计量》;20131231;摘要、第32页右栏倒数第1段-第34页左栏第3段，图1-2，表1 * |
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