CN106019206A - Electric energy meter field inspection device and electric energy meter - Google Patents
Electric energy meter field inspection device and electric energy meter Download PDFInfo
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- CN106019206A CN106019206A CN201610557908.1A CN201610557908A CN106019206A CN 106019206 A CN106019206 A CN 106019206A CN 201610557908 A CN201610557908 A CN 201610557908A CN 106019206 A CN106019206 A CN 106019206A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses an electric energy meter field inspection device, which comprises an information input unit, a first communication unit and a signal processing unit, wherein the signal processing unit is connected with the information input unit and the first communication unit; the information input unit is also connected with the first communication unit; the information input unit is used for receiving first information and sending the first information to the signal processing unit; the signal processing unit is used for generating instruction information from the first information and sending the instruction information to the electric energy meter through the first communication unit; the first communication unit is also used for receiving power information, corresponding to the first instruction, sent by the electric energy meter and sending the power information to the signal processing unit; and the signal processing unit is used for electric larceny and/or wrong wiring judgment according to the power information. According to the electric energy meter field inspection device, in a condition of not opening a seal and not using a phase volt ampere meter, electric energy meter field inspection is carried out and the operation is convenient. The invention also discloses an electric energy meter.
Description
Technical field
The present invention relates to intelligent power technical field, particularly relate to a kind of electric energy meter field and check device and electric energy meter.
Background technology
The power utility check of power supply enterprise, metering, meter reading personnel are when carrying out site inspection to the electric energy meter of Electricity customers, and electric energy meter to be confirmed whether normal operation, wiring is the most correct, and user is with or without electricity filching behavior etc..According to conventional working method, seal to be opened, batch meter and table tail-hood, phase voltammetric meter is accessed electric energy meter voltage, current loop carries out phasor measurement, not only waste seal, operation is loaded down with trivial details, need artificial judgment, there is also potential safety hazard.Stealing is opened seal when checking and also can be destoryed the scene, and easily causes the dispute with user.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, a kind of electric energy meter field is provided to check device, it is possible in the case of being not switched on seal, not using phase voltammetric meter, electric energy meter to be carried out site inspection, carry out stealing and/or error connection judges, easy to operate.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of electric energy meter field checks device, including information input unit, the first communication unit, signal processing unit；Described signal processing unit is connected with described information input unit and described first communication unit, and described information input unit is also connected with described first communication unit；
Described information input unit is used for receiving the first information, and the first information is sent to described signal processing unit；
Described signal processing unit, for the described first information is generated command information, is sent to electric energy meter by described first communication unit；Described command information includes the first instruction obtaining electric energy meter information of voltage and current information；
Described first communication unit is additionally operable to receive described electric energy meter and sends the power information corresponding with described first instruction come, and is sent to described signal processing unit；Described power information includes electric current and voltage；
Described signal processing unit, is additionally operable to carry out stealing according to described power information and/or error connection judges.
Preferably, described signal processing unit includes photoelectric conversion module, demodulation module, decoding module and processing module；Described photoelectric conversion module, demodulation module, decoding module and processing module are sequentially connected with；Described photoelectric conversion module is also connected with described first communication unit；
Described photoelectric conversion module for being converted to the signal of telecommunication by the described power information that described first communication unit receives, and sends the described signal of telecommunication to described demodulation module；
Described demodulation module is for being demodulated the described signal of telecommunication, and sends the signal of telecommunication after demodulation to described decoding module；
Described decoding module is for decoding the signal of telecommunication after demodulation, and the signal of telecommunication after decoding is sent to described processing module；
Described processing module carries out stealing according to the signal of telecommunication after decoding and/or error connection judges.
Preferably, described signal processing unit also includes amplification module；Described photoelectric conversion module is connected with described demodulation module by described amplification module；Described amplification module is for being amplified the described signal of telecommunication, and the signal of telecommunication after amplifying sends to described demodulation module；
The signal of telecommunication after described demodulation module will amplify is demodulated, and sends the signal of telecommunication after demodulation to described decoding module；
Preferably, described signal processing unit is single-chip microcomputer.
Preferably, display unit is also included；Described display unit is connected with described signal processing unit, is used for showing power information and the described signal processing unit result to described power information that described signal processing unit gets.
Preferably, memory element is also included；Described memory element is connected with described signal processing unit, for storing the result of described signal processing unit.
Preferably, power supply unit is also included；Said supply unit is connected with described signal processing unit, the first communication unit and information input unit, powers for described signal processing unit, the first communication unit and information input unit.
Preferably, described command information also includes the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain；
Described first communication unit is additionally operable to receive described electric energy meter and sends the information corresponding with the instruction of described Equations of The Second Kind come, and is sent to described signal processing unit；
Described signal processing unit is additionally operable to the information corresponding with the instruction of described Equations of The Second Kind is carried out respective handling.
Invention additionally discloses a kind of electric energy meter, including the second communication unit and power information acquiring unit；Described second communication unit and described information acquisition unit connect；
Described second communication unit is for obtaining the command information that electric energy meter field checks that device sends, and sends described command information to described power information acquiring unit；Described command information includes the first instruction obtaining electric energy meter information of voltage and current information；
Described information acquisition unit obtains corresponding power information according to described first instruction, and to described electric energy meter field, described power information is checked device by described second communication unit transmission；Described power information includes voltage and current.
Preferably, described command information also includes the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain；
Described information acquisition unit obtains corresponding information according to the instruction of described Equations of The Second Kind, and checks device by described second communication unit transmission to described electric energy meter field.
Use and have the beneficial effects that produced by technique scheme: above-mentioned electric energy meter field checks device, the power information of electric energy meter storage inside is obtained by communication unit, then stealing and/or error connection judgement process are carried out by signal processing unit according to the power information that the first communication unit obtains, can be in the case of being not switched on seal, not using phase voltammetric meter, electric energy meter is carried out site inspection, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation that electric energy meter field of the present invention checks one embodiment of device；
Fig. 2 is that electric energy meter field of the present invention checks the structural representation of one embodiment of signal processing unit in device；
Fig. 3 is that electric energy meter field of the present invention checks the structural representation of another embodiment of signal processing unit in device；
Fig. 4 is the communication process schematic diagram that electric energy meter field of the present invention checks in one embodiment of device；
Fig. 5 is the schematic flow sheet of initialization subroutine in Fig. 4；
Fig. 6 is the structural representation of one embodiment of electric energy meter of the present invention.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Seeing Fig. 1, in an embodiment, electric energy meter field checks that device can include information input unit the 100, first communication unit 200, signal processing unit 300.Signal processing unit 200 is connected with information input unit 100 and the first communication unit 200.Information input unit 100 is also connected with the first communication unit 200.Wherein, information input unit 100 is used for receiving the first information, and the first information is sent to signal processing unit 300.Signal processing unit 300, for the first information is generated command information, is sent to electric energy meter by the first communication unit 200.Command information can include the first instruction obtaining electric energy meter information of voltage and current information.First communication unit 200 is additionally operable to receive the power information corresponding with the first instruction that electric energy meter sends, and is sent to signal processing unit 300.Corresponding, this power information includes electric current and voltage.Signal processing unit 300 is additionally operable to carry out stealing according to power information and/or error connection judges.Electric current can be neutral line current and live wire electric current.Voltage can be neutral voltage and hot voltage.
Above-mentioned electric energy meter field checks that device can obtain the power information of electric energy meter storage inside by the first communication unit 200, then carries out stealing and/or error connection judgement process by signal processing unit 300 according to the power information that the first communication unit 200 obtains.Above-mentioned electric energy meter field checks that device can carry out site inspection in the case of being not switched on seal, not using phase voltammetric meter to electric energy meter, easy to operate.
In the present embodiment, the method that signal processing unit 300 carries out stealing and/or error connection judgement process according to power information can use technology well-known to those skilled in the art.Such as, signal processing unit 300 by neutral line current and live wire current ratio relatively, when neutral line current is more than live wire electric current, it is determined that the user that electric energy meter is corresponding has electricity filching behavior.Voltage and current is intersected by signal processing unit 300, and the power factor (PF) according to drawing determines whether error connection.
Seeing Fig. 2, in an embodiment, signal processing unit 300 can include photoelectric conversion module 310, demodulation module 320, decoding module 330 and processing module 340.Photoelectric conversion module 310, demodulation module 320, decoding module 330 and processing module 340 are sequentially connected with.Photoelectric conversion module 310 is also connected with the first communication unit 200.Wherein, photoelectric conversion module 310 for being converted to the signal of telecommunication by the power information that the first communication unit 200 receives, and sends the signal of telecommunication to demodulation module 320.Demodulation module 320 is for being demodulated the signal of telecommunication, and sends the signal of telecommunication after demodulation to decoding module 330.Decoding module 330 is for decoding the signal of telecommunication after demodulation, and the signal of telecommunication after decoding is sent to processing module 340.Processing module 340 carries out stealing according to the signal of telecommunication after decoding and/or error connection judges.
Further, seeing Fig. 3, signal processing unit 300 can also include amplification module 350.Photoelectric conversion module 310 is connected with demodulation module 320 by amplification module 350.Amplification module 350 is for being amplified the signal of telecommunication that photoelectric conversion module 310 is changed out, and the signal of telecommunication after amplifying sends to demodulation module 320.The signal of telecommunication after demodulation module 320 will amplify is demodulated, and sends the signal of telecommunication after demodulation to decoding module 330.The signal of telecommunication after demodulation is decoded by decoding module 330 again, and the signal of telecommunication after decoding is sent to processing module 340.Processing module 340 carries out stealing according to the signal of telecommunication after decoding and/or error connection judges.Amplification module 350 is set, when the power information that receives for the first communication unit 200 is more weak, it is possible to be further ensured that and carry out stealing according to power information and/or accuracy that error connection judges.
In the present embodiment, the first communication unit 200 can be infrared communication unit.Photoelectric conversion unit 310 can be optical-electrical converter.Demodulation module 320 can be demodulator.Decoding module 330 can be decoder.The effect of photoelectric conversion unit 310 is that the infrared light information received by infrared communication unit is converted into the corresponding signal of telecommunication.Then after the signal of telecommunication being amplified by amplification module 350, demodulation module 320 demodulate, modulation carrier signal is reduced to modulated signal.Then pass through decoding module 330 to be decoded by the signal of telecommunication after demodulation.Stealing and/or error connection judgement process is carried out according to the signal of telecommunication after decoding finally by processing module 340.
Preferably, command information can also include the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain.Now, the first communication unit 200 is additionally operable to receive electric energy meter and sends the information corresponding with Equations of The Second Kind instruction come, and is sent to signal processing unit 300.Signal processing unit 300 is additionally operable to the information corresponding with Equations of The Second Kind instruction is carried out respective handling.
Concrete, the data such as voltage, electric current, phase angle, power factor can be transferred, then draw out the phase diagram of voltage, electric current, it is achieved 48 kinds of error connection intelligence wiring arbitration functions；The data such as zero-sequence current, electric current, information of uncapping, decompression record, defluidization record can be transferred, contrast the value of two electric currents and analyze the judgement with or without fraudulent use electricity by short-circuit；The data such as power load distributing information, history electricity, power factor can also be transferred, carry out load curve analysis；Judge customer charge character and Annual distribution, user optimization electrical equipment and the configuration of electricity consumption time can be instructed；And electric energy meter history electricity is analyzed, abnormal electricity distribution is carried out prompting etc..Can be set according to specific needs: such as input relevant information by information input unit 100, then signal processing unit 300 generates Equations of The Second Kind instruction according to the relevant information of input.
Preferably, electric energy meter field checks that device can also include display unit 400.Display unit 400 is connected with signal processing unit 300, is used for showing power information and the signal processing unit 300 result to power information that signal processing unit 300 gets.Concrete, can show in table form, it is also possible to show with the form of coordinate axes curve, without limitation.In one embodiment, display unit 400 can be LED(Light-Emitting
Diode, light emitting diode) display screen, have that brightness is high, energy consumption is low and the advantage such as length in service life.
Preferably, electric energy meter field checks that device can also include memory element 500.Memory element 500 is connected with signal processing unit 300, for storing the result of signal processing unit 300.The judged result of signal processing unit 300 is stored, it is possible to provide reference frame for user's electric energy meter inspection work in the future.
Further, electric energy meter field checks that device can also include power supply unit 600.Power supply unit 600 is connected with signal processing unit the 300, first communication unit 200 and information input unit 100, powers for signal processing unit the 300, first communication unit 200 and information input unit 100.Certainly, power supply unit 600 can also be connected with display unit 400 and memory element 500, and powers for display unit 400 and memory element 500.
In one embodiment, electric energy meter field checks that device can also include current clamp.Current clamp is embedded in the primary side of meter mutual inductor for card, obtains the primary current of meter mutual inductor.Current clamp is connected with signal processing unit 300.The primary current of meter mutual inductor is sent to signal processing unit 300 by current clamp.The primary current of meter mutual inductor is compared by signal processing unit 300 with the electric current in digital signal, thus judges that the no-load voltage ratio of electric energy meter is the most correct.Owing to the electric current in the primary current according to meter mutual inductor and digital signal carries out no-load voltage ratio judgement, technology well-known to those skilled in the art can be used, therefore do not repeat them here.
It addition, signal processing unit 300 can use single-chip microcomputer to realize, application is convenient, the process that realizes is simple and cost is relatively low.Certainly, signal processing unit 300 can also be realized by corresponding circuit.
See Fig. 4, below electric energy meter field is checked that the communication process of device illustrates.
Concrete, electric energy meter field checks that the communication process of device may comprise steps of:
S401, initialization subroutine.
S402, sends the address frame corresponding with electric energy meter to electric energy meter, to set up the connection with electric energy meter.
S403, it is judged that whether electric energy meter replys: the most then perform step S404；Otherwise perform step S402.
S404, sends meter reading instruction to electric energy meter, and performs step S405.Meter reading instruction described herein can include that aforesaid first instruction and Equations of The Second Kind instruct.
S405, it is judged that whether electric energy meter replys: the most then perform step S406；Otherwise, step S407 is performed.
S406, receives electric energy meter and sends the data of coming, and perform step S408.Data described herein can include the power information corresponding with the first instruction and the information corresponding with Equations of The Second Kind instruction.
S407, electric energy meter resets, and performs step S402.
S408, it is judged that whether data finish receiving, if then terminating；Otherwise, step S406 is performed.
Seeing Fig. 5, in an embodiment, initialization subroutine can be realized by following steps:
S501, arranges the pattern of intervalometer T1.
S502, arranges the initial value of intervalometer T1.
S503, timeing closing device T1 interrupt.
S504, starts intervalometer T1.
S505, arranges serial port baud rate and working method.
S506, open string mouth interrupts.
Above-mentioned electric energy meter field checks that device, the first communication unit 200 obtain and the first power information corresponding to instruction, and signal processing unit 300 is committed theft electricity and/or error connection judgement process according to this power information.Above-mentioned electric energy meter field checks that device can carry out site inspection in the case of being not switched on seal, not using phase voltammetric meter to electric energy meter, easy to operate.Power information and the signal processing unit 300 result to power information that display unit 400 can show that signal processing unit 300 gets are set, facilitate user to know relevant information intuitively.Memory element 500 is set and stores the judged result of signal processing unit 300, it is possible to provide reference frame for user's electric energy meter inspection work in the future.
Invention additionally discloses a kind of electric energy meter, check that device matches with above-mentioned electric energy meter field, repeat no more in place of repetition.See Fig. 6, one and in embodiment, electric energy meter can include the second communication unit 10 and power information acquiring unit 20.Second communication unit 10 and information acquisition unit 20 connect.Wherein, the second communication unit 10 is for obtaining the command information that electric energy meter field checks that device sends, and sends command information to power information acquiring unit 20.Command information includes the first instruction obtaining electric energy meter information of voltage and current information.Information acquisition unit 20 obtains corresponding power information according to the first instruction, and is sent to electric energy meter field inspection device by the second communication unit 10 by power information.Corresponding, power information can include voltage and current.Electric current can be neutral line current and live wire electric current.Voltage can be neutral voltage and hot voltage.It addition, this electric energy meter also includes the parts that existing electric energy meter is had, do not repeat them here.
Further, command information can also include the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain.Information acquisition unit 20 obtains corresponding information according to Equations of The Second Kind instruction, and is sent to electric energy meter field inspection device by the second communication unit 10.Second communication unit 10 can be infrared communication unit.
Above-mentioned electric energy meter checks device fit applications with aforementioned electric energy meter field, it is possible to aforementioned electric energy meter field is checked, and device, in the case of being not switched on seal, not using phase voltammetric meter, carries out site inspection to above-mentioned electric energy meter, easy to operate.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (10)
1. an electric energy meter field checks device, it is characterised in that includes information input unit, the first communication unit, signal processing unit, all can be connected with power supply；Described signal processing unit is connected with described information input unit and described first communication unit, and described information input unit is also connected with described first communication unit；
Described information input unit is used for receiving the first information, and the first information is sent to described signal processing unit；
Described signal processing unit, for the described first information is generated command information, is sent to electric energy meter by described first communication unit；Described command information includes the first instruction obtaining electric energy meter information of voltage and current information；
Described first communication unit is additionally operable to receive described electric energy meter and sends the power information corresponding with described first instruction come, and is sent to described signal processing unit；Described power information includes electric current and voltage；
Described signal processing unit, is additionally operable to carry out stealing according to described power information and/or error connection judges.
Electric energy meter field the most according to claim 1 checks device, it is characterised in that described signal processing unit includes photoelectric conversion module, demodulation module, decoding module and processing module；Described photoelectric conversion module, demodulation module, decoding module and processing module are sequentially connected with；Described photoelectric conversion module is also connected with described first communication unit；
Described photoelectric conversion module for being converted to the signal of telecommunication by the described power information that described first communication unit receives, and sends the described signal of telecommunication to described demodulation module；
Described demodulation module is for being demodulated the described signal of telecommunication, and sends the signal of telecommunication after demodulation to described decoding module；
Described decoding module is for decoding the signal of telecommunication after demodulation, and the signal of telecommunication after decoding is sent to described processing module；
Described processing module carries out stealing according to the signal of telecommunication after decoding and/or error connection judges.
Electric energy meter field the most according to claim 2 checks device, it is characterised in that described signal processing unit also includes amplification module；Described photoelectric conversion module is connected with described demodulation module by described amplification module；Described amplification module is for being amplified the described signal of telecommunication, and the signal of telecommunication after amplifying sends to described demodulation module；
The signal of telecommunication after described demodulation module will amplify is demodulated, and sends the signal of telecommunication after demodulation to described decoding module.
Electric energy meter field the most according to claim 3 checks device, it is characterised in that described signal processing unit is single-chip microcomputer.
Electric energy meter field the most according to claim 1 checks device, it is characterised in that also include display unit；Described display unit is connected with described signal processing unit, is used for showing power information and the described signal processing unit result to described power information that described signal processing unit gets.
Electric energy meter field the most according to claim 1 checks device, it is characterised in that also include memory element；Described memory element is connected with described signal processing unit, for storing the result of described signal processing unit.
Electric energy meter field the most according to claim 1 checks device, it is characterised in that also include power supply unit；Said supply unit is connected with described signal processing unit, the first communication unit and information input unit, powers for described signal processing unit, the first communication unit and information input unit.
8. check device according to the electric energy meter field described in claim 1 to 7 any one, it is characterized in that, described command information also includes the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain；
Described first communication unit is additionally operable to receive described electric energy meter and sends the information corresponding with the instruction of described Equations of The Second Kind come, and is sent to described signal processing unit；
Described signal processing unit is additionally operable to the information corresponding with the instruction of described Equations of The Second Kind is carried out respective handling.
9. an electric energy meter, it is characterised in that include the second communication unit and power information acquiring unit；Described second communication unit and described information acquisition unit connect；
Described second communication unit is for obtaining the command information that electric energy meter field checks that device sends, and sends described command information to described power information acquiring unit；Described command information includes the first instruction obtaining electric energy meter information of voltage and current information；
Described information acquisition unit obtains corresponding power information according to described first instruction, and to described electric energy meter field, described power information is checked device by described second communication unit transmission；Described power information includes voltage and current.
Electric energy meter the most according to claim 9, it is characterized in that, described command information also includes the Equations of The Second Kind instruction of more than one information in zero-sequence current, phase angle, power factor, information of uncapping, history electricity, decompression record, defluidization record, active power, active energy, reactive energy and power load distributing information that obtain；
Described information acquisition unit obtains corresponding information according to the instruction of described Equations of The Second Kind, and checks device by described second communication unit transmission to described electric energy meter field.
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| CN201610557908.1A CN106019206A (en) | 2016-07-15 | 2016-07-15 | Electric energy meter field inspection device and electric energy meter |
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| CN201610557908.1A CN106019206A (en) | 2016-07-15 | 2016-07-15 | Electric energy meter field inspection device and electric energy meter |
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| CN113791374A (en) * | 2021-09-16 | 2021-12-14 | 国网福建省电力有限公司营销服务中心 | Electric energy meter running state remote evaluation method based on component comparison |
| CN113791374B (en) * | 2021-09-16 | 2024-03-12 | 国网福建省电力有限公司营销服务中心 | Remote evaluation method for operation state of electric energy meter by element comparison |
| CN115774149A (en) * | 2023-02-10 | 2023-03-10 | 河北悦贝电力工程有限公司 | Intelligent electric power electricity stealing prevention device based on data contrast |
| CN115774149B (en) * | 2023-02-10 | 2023-05-23 | 河北悦贝电力工程有限公司 | Intelligent electric power anti-theft device based on data comparison |
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