CN104020367A - Transformer area user automatic identification system - Google Patents
Transformer area user automatic identification system Download PDFInfo
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- CN104020367A CN104020367A CN201310065110.1A CN201310065110A CN104020367A CN 104020367 A CN104020367 A CN 104020367A CN 201310065110 A CN201310065110 A CN 201310065110A CN 104020367 A CN104020367 A CN 104020367A
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Abstract
A transformer area user automatic identification system is characterized by comprising a transformer area identification information controller, a user electric energy meter identification information gatherer and a backstage computer management system; the transformer area identification information controller mainly comprises a GPRS communication interface circuit, a three phase power frequency communication signal modulation circuit, a three phase power frequency communication signal sampling circuit, a three phase voltage zero crossing detection circuit, and a microprocessor circuit; the user electric energy meter identification information gatherer mainly comprises a RS485 communication interface circuit, a single phase power frequency communication signal modulation circuit, a single phase power frequency communication signal sampling circuit, a single phase voltage zero crossing detection circuit, and a microprocessor control circuit; the backstage computer management system mainly comprises a computer, a data base management system and a GPRS communication device. The backstage computer management system can be directly used to obtain user identification information function of each transformer area in a power grid, thereby improving transformer area user general survey work efficiency and automation degree.
Description
Technical field
The present invention relates to low-voltage network load balancing management field, especially relate to a kind of district user automatic recognition system.
Background technology
Power department, when operation of power networks is carried out to maintenance management, is usually done corresponding adjustment, increase and decrease according to the situation of power distribution network load variations to power distribution network transformer and affiliated user's electric energy meter.Platform district user is through after adjusting, increasing and decreasing, original district of part electric energy meter and separate membership change, how in complicated distribution line, to judge and belong to any station power distribution transformer by user's electric energy meter which is powered mutually, accurately grasp user Tai district and separate attribute, for reasonable distribution user load, minimizing line loss, improve power consumption efficiency necessary.All the time, power department carries out platform district user and identifies when generaI investigation and mostly use portable district's identifier, need show up Xian Tai district step down side erecting bed of operating personnel is distinguished phase signals generating means, and this device adopts power carrier mode along the line of electric force ABC three-phase signal that constantly transmission comprises platform district transformer number and phase line attribute.Then hand-held receiving trap arrives each subscriber's meter position from house to house, receiving trap is connected to line of electric force, collect and comprise platform district transformer number and separate information, could judge that this subscriber's meter belongs to which power supply of that transformer, the very loaded down with trivial details and inefficiency of working.
Summary of the invention
The object of the invention is to design a kind of district user automatic recognition system, to overcome at present in complicated distribution line in order judging, to belong to any station power distribution transformer by user's electric energy meter which is powered mutually, accurately grasp user Tai district and separate attribute, want hand-held receiving trap to arrive from house to house each subscriber's meter position, receiving trap is connected to line of electric force, collect and comprise platform district transformer number and separate information, could judge that this subscriber's meter belongs to which power supply of that transformer, the shortcoming of work very loaded down with trivial details and inefficiency.
The present invention is based on frequency communication technology Tai district identifying information controller and harvester, and on the basis of this device, increase hind computation machine management system, form a kind of district's automatic recognition system.By being arranged near the automatic sending station of controller district identifying information platform district transformer, electric energy meter identifying information collector automatically gathers through power distribution network phase line and transmits Tai district user identification data, then through power distribution network, pass back in controller, by controller, adopt GPRS communication mode to upload to background computer system again, realize staff not on-site, directly use hind computation machine management system can obtain the function of electrical network Ge Tai district transformer customer identification information, reach the object that improves platform district user census operations efficiency and automaticity.
The present invention is achieved in that a kind of district user automatic recognition system, it is characterized by: comprise platform district identifying information controller, user's electric energy meter identifying information collector and hind computation machine management system, described Tai district identifying information controller mainly comprises GPRS communication interface circuit, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, Zero Crossing Point for Three Phase Voltage testing circuit, with GPRS communication interface circuit, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, the microcontroller circuit that Zero Crossing Point for Three Phase Voltage testing circuit is connected, described user's electric energy meter identifying information collector mainly comprises RS485 communication interface circuit, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, the microcontroller circuit being connected with RS485 communication interface circuit, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, described hind computation machine management system mainly comprises computing machine, data base management system (DBMS), GPRS communicator etc.
Whether background computer software flow of the present invention is: after " beginning ", enter " sending station district identifying information acquisition ", to enter " by GPRS sending station district identifying information acquisition ", enter again " whether receiving platform district identifying information data ", otherwise directly enter " whether receiving platform district identifying information data ", enter after " whether receiving platform district identifying information data ", otherwise return to " whether sending station district identifying information acquisition ", to enter " originating station district numbering ", enter again " by GPRS, sending the identifying information data back order of specifying platform district numbering ", enter again " by GPRS, receiving the identifying information returned data of specifying platform district numbering ", enter again " whether last district numbers ", to turn back to " whether sending station district identifying information acquisition ", otherwise enter into " selecting next platform district numbering ", turn back to again " by GPRS, receiving the identifying information returned data of specifying platform district numbering ".
The software flow of of the present invention district's identifying information controller is: after " beginning ", enter " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", to enter " through GPRS, passing this TV station district customer identification information back background computer system ", enter again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise directly enter " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise enter, " along A, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along A, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along B, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", turn back to again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", along C, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, turn back to " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", receive the customer identification information acquisition that background computer system is sent through GPRS interface, enter and " generate respectively along A, B, C sends the separate attribute information broadcasting command in Tai district mutually ", enter into again " along A, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along B, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along C, sending mutually the separate attribute information broadcasting command in Tai district ", enter again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ", enter again " along A, sending mutually electric energy meter querying command ", enter again " along A, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along B, sending mutually electric energy meter querying command ", enter again " along B, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along C, sending mutually electric energy meter querying command ", enter again " along C, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", " prestore Dao Tai district under electric energy meter directory ", enter into again " whether last district under electric energy meter number ", along C, do not receive mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded, enter " under Cong Tai district, in electric energy meter directory, deleting this electric energy meter ", enter again " whether last district under electric energy meter number ", to turn back to " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", otherwise " get next electric energy meter number ", return to again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ".
The software flow of collector of the present invention is: after " beginning ", enter " whether being to reset and start after installing ", otherwise enter into " whether receiving the separate attribute information broadcasting command in platform district ", to enter " by RS485 reading power meters number ", enter again " whether conforming to the electric energy meter number prestoring ", otherwise enter " generating the new number upload command that electric energy meter is installed ", enter again " whether communication port is occupied ", to turn back to " whether communication port is occupied ", otherwise enter " sending the new number upload command that electric energy meter is installed ", enter again " whether receiving the separate attribute information broadcasting command in platform district ", conform to the electric energy meter number prestoring and enter " whether receiving the separate attribute information broadcasting command in platform district ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " whether conforming to the collector separate attribute data in Tai district that prestores ", what do not conform to enters " generating the new number upload command that electric energy meter is installed ", to enter " whether receiving electric energy meter querying command ", whether no turning back to " receives the separate attribute information broadcasting command in platform district ", to enter " whether the electric energy meter number of querying command conforms to ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " the separate attribute acknowledgement command in generating electric energy Biao Tai district ", enter again " sending the separate attribute acknowledgement command in electric energy meter Tai district ", finally turn back to " whether receiving the separate attribute information broadcasting command in platform district ".
Take the present invention of above measure, overcome at present in complicated distribution line, in order to judge, to belong to any station power distribution transformer by user's electric energy meter which is powered mutually, accurately grasp user Tai district and separate attribute, want hand-held receiving trap to arrive from house to house each subscriber's meter position, receiving trap is connected to line of electric force, collect and comprise platform district transformer number and separate information, could judge that this subscriber's meter belongs to which power supply of that transformer, the shortcoming of work very loaded down with trivial details and inefficiency.
Accompanying drawing explanation
Accompanying drawing 1 is general function schematic diagram of the present invention;
Accompanying drawing 2 is circuit block diagrams of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 3 is circuit diagrams of the three-phase signal modulation circuit of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 4 is circuit diagrams of the three-phase signal sample circuit of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 5 is circuit diagrams of the Zero Crossing Point for Three Phase Voltage testing circuit of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 6 is circuit diagrams of the microcontroller circuit of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 7 is circuit diagrams of the GPRS communication interface circuit of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 8 is circuit block diagrams of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 9 is circuit diagrams of single phase industrial frequence signal modulation circuit of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 10 is circuit diagrams of single phase industrial frequence signal sample circuit of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 11 is circuit diagrams of single-phase voltage zero-crossing detection circuit of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 12 is circuit diagrams of microcontroller circuit of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 13 is circuit diagrams of RS485 communication interface circuit of the electric energy meter identifying information collector of the embodiment of the present invention;
Accompanying drawing 14 is background computer software flow figure of the embodiment of the present invention;
Accompanying drawing 15 is software flow patterns of embodiment of the present invention Tai district identifying information controller;
Accompanying drawing 16 is software flow patterns of the electric energy meter identifying information collector of the embodiment of the present invention.
The present invention is described in further detail in conjunction with the accompanying drawings and embodiments more below.
Embodiment
The present invention is based on frequency communication technology Tai district identifying information controller and harvester, and on the basis of this device, increase hind computation machine management system, form a kind of district's automatic recognition system.By being arranged near the automatic sending station of controller district identifying information platform district transformer, electric energy meter identifying information collector automatically gathers through power distribution network phase line and transmits Tai district user identification data, then through power distribution network, pass back in controller, by controller, adopt GPRS communication mode to upload to background computer system again, realize staff not on-site, directly use hind computation machine management system can obtain the function of electrical network Ge Tai district transformer customer identification information, reach the object that improves platform district user census operations efficiency and automaticity.
Accompanying drawing 1 has provided general function schematic diagram of the present invention.With reference to accompanying drawing 1.
Platform district user automatic recognition system You Tai district identifying information controller, user's electric energy meter identifying information collector and hind computation machine management system form.Each district establishes 1 Tai Tai district information controller, and each user's electric energy meter correspondence arranges user's electric energy meter information acquisition device.
1, platform district identifying information controller: be arranged on each distribution low-voltage outlet side, comprise GPRS communication interface, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, Zero Crossing Point for Three Phase Voltage testing circuit, microprocessor module and other, for timing or the not timing collection of scheduling controlling Gai Tai district customer identification information.Major function: (1) regularly sends based on the separate attribute data broadcasting command in frequency communication signal Tai district to A, B, C three-phase power line, receives and distinguishes platform district phase attributes for collector.(2) regularly to A, B, C three-phase power line, send the electric energy meter querying command based on frequency communication signal, whether inquiry electric energy meter still belongs to the administration of this TV station district.(3) receive subscriber's meter address code, the affiliated platform district separate data frequency communication signal that corresponding collector is uploaded by A, B, C three-phase power line, generate respective user table address Ma Tai district and separate attribute data and be pre-stored in information controller.(4) by built-in GPRS module Jiang Tai district identification data, being transmitted back to hind computation machine management system processes.(5) by GPRS, receive and carry out the instruction of hind computation machine management system.
2, user's electric energy meter identifying information collector: be arranged on user's electric energy meter position, comprise the modules such as RS485 communication interface, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, microprocessor control circuit, each user's electric energy meter is corresponding installs one, by RS485 communication interface, is connected with electric energy meter.Major function: (1) receives information controller and sends based on the separate attribute data broadcasting command in frequency communication signal Tai district or querying command, obtains the affiliated Tai of this electric energy meter district and numbers, belongs to mutually information after decoding.(2) by the instant reading power meters address code of RS485 communication interface.(3) when collector is reinstalled starting, judge electric energy meter number or receive Tai district numbering, whether phase line attribute identical with the data that prestore, if electric energy meter number, platform district numbering, phase line attribute data and prestore different, the electric energy meter installation site sign that changes is set.(4) when electric energy meter installation site changes or receive the querying command from information controller, by user's electric energy meter address code and receive the power distribution network phase line that the separate information in Tai district articulates along subscriber's meter and pass back in information controller, realize platform district user and separate full-automatic accurately identification.Up-to-date electric energy meter number, platform district numbering, phase line attribute data are pre-stored in collector to judgement when changing next time simultaneously.
3, background computer information management system: be arranged on power supply department office, comprise data base management system (DBMS), GPRS communication interface.Major function: (1) sends acquisition by GPRS communication interface to power distribution network Ge Tai district information controller.(2) receive power distribution network Ge Tai district information controller and transmit Tai district identification data.(3) aggregation process analysis station district identification data, management power distribution network whole platforms district's transformer and affiliated electric supply meter platform district and separate data.
Accompanying drawing 2 has provided the circuit block diagram of embodiment of the present invention Tai district identifying information controller.With reference to accompanying drawing 2.Platform district identifying information controller mainly comprises GPRS communication interface circuit, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, Zero Crossing Point for Three Phase Voltage testing circuit, the microcontroller circuit being connected with GPRS communication interface circuit, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, Zero Crossing Point for Three Phase Voltage testing circuit.
Accompanying drawing 3 is circuit diagrams of the three-phase signal modulation circuit of embodiment of the present invention Tai district identifying information controller.Three-phase signal modulation circuit comprises zero crossing prepulse trigger circuit unit and controlled silicon conducting and breaking circuit unit and holding circuit.By A, B, C three-phase, set up three independent power frequency component modulation circuits separately, corresponding three-phase, for the frequency communication downgoing signal of sending station district and separate attribute data, is subject to microprocessor to send data triggering signals and controls.When microprocessor control unit is when a phase power frequency component modulation circuit sends trigger pip wherein, its zero crossing prepulse trigger circuit modulate a momentary current pulse, drive controllable silicon modulation circuit turn-on and disconnection, generation represents the faint distortion voltage signal of a signal bit code, be coupled on this phase voltage first-harmonic near zero-crossing point position of power distribution network, with voltage fundamental, at line of electric force, transmit, thereby complete a number in the wherein transmission of a phase circuit of electrical network.
Circuit is comprised of A, B, C three-phase independence power frequency component modulation circuit.(1) A phase modulation circuit: resistance R 18, resistance R 22, capacitor C 22, capacitor C 24, phase inverter U4A, the U4B of chip CD4069 forms self-sustained oscillation signal generating circuit.The Sheffer stroke gate U2A of chip 74HC00 and resistance R 16 form NAND Logic gate circuit, input pin 1B, the output pin 1C of high withstand voltage, large electric current Darlington array ULN2003 forms large driven current density circuit, resistance R 9, triode N1 (S8085), triode
N3 (S8550), capacitor C 19 form push-pull power amplifier circuit, and pulse transformer LB1 further converts signal to large current signal, drives the needs of signal to mate controllable silicon.Controllable silicon Q1 and capacitance-resistance branch road, inductance L 2, power diode D1, diode D4 (IN5408) form the thyristor gating circuit that is connected to power distribution network A phase.The Tidal stress signal of being sent by micro processor leg APOUT and self-sustained oscillation signal output to large driven current density circuit, push-pull power amplifier circuit and pulse transformer through NAND gate circuit and amplify step by step and become silicon controlled gate pole trigger pip, trigger controlled silicon conducting, at electrical network A, be coupled and produce 1 pulsed current signal.(2) B, C phase modulation circuit are used element and circuit structure are just the same with A phase modulation circuit, can contrast its function that draws described above.
Accompanying drawing 4 has provided the circuit diagram of the three-phase signal sample circuit of embodiment of the present invention Tai district identifying information controller.With reference to accompanying drawing 4.Three-phase signal sample circuit comprises signal processing circuit unit, the built-in A/D sample circuit of microprocessor unit etc.By A, B, C three-phase, set up three independent power frequency component sample circuits separately, corresponding three-phase is for the frequency communication upward signal of the collector uploading data of sampling.When line voltage is during to the fixed sampling angle of zero crossing front lay, microprocessor control unit starts to start A/D sample circuit by certain sampling time interval transmitted signal, after a series of samplings, by containing the grid voltage waveform data sampling that represents a bit code distorted signal, send into microprocessor control unit and process.
Circuit is comprised of A, B, C three-phase independence power frequency component sample circuit.(1) A phase sampler circuit: resistance R A, resistance R 42, capacitor C 10, inductance L UA1, mutual inductor PTA forms mutual inductor translation circuit; Operational amplifier U11A (TL084), resistance R 36, resistance R 43, resistance R 38 form voltage signal amplifying circuit; Operational amplifier U11B, operational amplifier U11C (TL084), resistance R 37, resistance R 40, resistance R 35, resistance R 33, resistance R 34, resistance R 41, capacitor C 38, diode D13, diode D12 (IN4148) form absolute value voltage amplifier circuit.A phase voltage becomes low voltage signal through mutual inductor translation circuit scaling transformation, and entering the arrangement of voltage signal amplifying circuit becomes standard low voltage signal, enters absolute value voltage amplifier circuit positive and negative two-way input signal is become to unipolar output signal.By micro processor leg VADIN, input built-in A/D change-over circuit and become digital signal for microprocessor samples.(2) element that B, C phase sampler circuit are used and circuit structure and A phase sampler circuit are just the same, can contrast its function that draws described above.
Accompanying drawing 5 has provided the circuit diagram of the Zero Crossing Point for Three Phase Voltage testing circuit of embodiment of the present invention Tai district identifying information controller.With reference to accompanying drawing 5, by A, B, C three-phase, set up three independent voltage zero-crossing detection circuits separately, corresponding three-phase is for detection of sampling three-phase voltage over zero.When voltage arrives zero crossing, produce zero passage interrupt trigger signal to microprocessor control unit, to control, data send and the time synchronized of sampling.
Circuit is comprised of A, B, C three-phase independent voltage zero-crossing detection circuit.(1) A phase voltage zero-crossing detection circuit: resistance R 74, resistance R 75, resistance R 12, capacitor C 37, diode D14 (IN4148), voltage comparator integrated circuit Ui0B (LM393) forms voltage over zero testing circuit, wherein resistance R 74, resistance R 75 form the sluggish loop of the homophase positive feedback branch of this circuit, the frequent flop phenomenon of output level occurring when zero crossing is shaken to remove voltage.A phase standard low voltage signal is inputted after this circuit, through the judgement of voltage over zero testing circuit, and when being input as positive voltage, output high level, when being input as low-voltage, output low level, voltage over zero is level flip-flop transition.The level energizing signal of output enters micro processor leg ASTS and triggers zero passage interruption.(2) element that B, C phase zero-crossing detection circuit are used and circuit structure and A phase sampler circuit are just the same, can contrast its function that draws described above.
Accompanying drawing 6 has provided the circuit diagram of the microcontroller circuit of embodiment of the present invention Tai district identifying information controller.With reference to accompanying drawing 6, the microcontroller circuit of platform district identifying information controller operation embedded Control program, realizes data and sends control, data sampling receiving and analyzing, voltage zero-cross detection, passes through the functions such as GPRS interface transceiving data.The microcontroller circuit of platform district identifying information controller adopts the STM32 microprocessor chip of ARM series, and electric capacity is set chip periphery or capacitance-resistance filter branch road is for elimination power supply ripple, improves the supply voltage precision that chip is used.By pin APOUT, pin BPOUT, pin CPOUT, to A, B, C three-phase power frequency signal modulation circuit, send Tidal stress high level signal respectively, realize data and send control; By pin VADIN, pin VBDIN, pin VCDIN, respectively the simulating signal of A, B, the output of C three-phase main-frequency voltage detecting circuit is introduced to built-in A/D change-over circuit and be transformed into digital signal, realize data sampling receiving and analyzing; By pin ASTS, pin BSTS, pin CSTS, respectively the voltage zero-cross trigging signal of A, B, the output of C Zero Crossing Point for Three Phase Voltage testing circuit is introduced, trigger voltage zero passage is interrupted, and realizes the time synchronized of data input and data output; By pin U0DTR, pin U0DSR, pin UORx, pin U0Tx, be connected with the RS232 interface of GPRS communication interface circuit, realize data and send and receive by GPRS communication interface circuit.
Accompanying drawing 7 has provided the circuit diagram of the GPRS communication interface circuit of embodiment of the present invention Tai district identifying information controller.The embodiment of the present invention arranges RS232 serial communication interface and is connected with GPRS communication module, by GPRS communication module, receives the operational command data that background computer system is sent, and the microprocessor separate attribute data in Tai district that prestores is uploaded to background computer system.GPRS communication interface circuit comprises RS232 communication interface circuit, connection terminal, battery tray wiring, electric source filter circuit etc.Chip MAX232, capacitor C 11, capacitor C 12, capacitor C 13 form RS232 communication interface circuit, as the interface that connects microprocessor and GPRS communication module, GPRS connector is connection terminal, and Battery is battery tray wiring, and Power filter circuit is electric source filter circuit.Microprocessor is connected with the RS232 interface of GPRS communication interface circuit by pin U0DTR, pin U0DSR, pin UORx, pin U0Tx, realizes data and is connected and sends reception with GPRS communication module by GPRS communication interface circuit.
Accompanying drawing 8 has provided the circuit block diagram of the electric energy meter identifying information collector of the embodiment of the present invention.User's electric energy meter identifying information collector mainly comprises RS485 communication interface circuit, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, the microprocessor control circuit being connected with RS485 communication interface circuit, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit.
Accompanying drawing 9 has provided the circuit diagram of single phase industrial frequence signal modulation circuit of the electric energy meter identifying information collector of the embodiment of the present invention.This circuit function is the power distribution network phase line passback electric energy meter address code articulating along electric energy meter and receives the separate information upward signal in Tai district, when microprocessor control unit sends trigger pip to power frequency component modulation circuit, its zero crossing prepulse trigger circuit modulate a momentary current pulse, drive controllable silicon modulation circuit turn-on and disconnection, generation represents the faint distortion voltage signal of a signal bit code, be coupled on this phase voltage first-harmonic near zero-crossing point position of power distribution network, with voltage fundamental, at line of electric force, transmit, thereby complete a number in the passback of electrical network phase line.
Single phase industrial frequence signal modulation circuit forms: resistance R 18, resistance R 22, and capacitor C 22, capacitor C 24, the phase inverter U4A of chip CD4069, phase inverter U4B form self-sustained oscillation signal generating circuit.The Sheffer stroke gate U2A of chip 74HC00 and resistance R 16 form NAND Logic gate circuit, input and output pin 1B, the 1C of high withstand voltage, large electric current Darlington array ULN2003 forms large driven current density circuit, resistance R 9, triode N1 (S8085), N3 (S8550), capacitor C 19 form push-pull power amplifier circuit, pulse transformer LB1 further converts signal to large current signal, drives the needs of signal to mate controllable silicon.Controllable silicon Q1 and capacitance-resistance branch road, inductance L 2, power diode D1, diode D4 (IN5408) form the thyristor gating circuit that is connected to power distribution network one phase circuit.The Tidal stress signal of being sent by micro processor leg POUT and self-sustained oscillation signal output to large driven current density circuit, push-pull power amplifier circuit and pulse transformer through NAND gate circuit and amplify step by step and become silicon controlled gate pole trigger pip, trigger controlled silicon conducting, in the coupling of electrical network phase line, produce 1 pulsed current signal.
Accompanying drawing 10 has provided the circuit diagram of single phase industrial frequence signal sample circuit of the electric energy meter identifying information collector of the embodiment of the present invention.The frequency communication signal of this circuit function sample information controller down-transmitting data, when line voltage is during to the fixed sampling angle of zero crossing front lay, microprocessor control unit starts to start A/D sample circuit by certain sampling time interval transmitted signal, after a series of samplings, by containing the grid voltage waveform data sampling that represents a bit code distorted signal, send into microprocessor control unit and process.
Single phase industrial frequence signal sample circuit forms: resistance R A, resistance R 42, and capacitor C 10, inductance L UA1, mutual inductor PTA forms mutual inductor translation circuit; Operational amplifier U11A (TL084), resistance R 36, resistance R 43, resistance R 38 form voltage signal amplifying circuit; Operational amplifier U11B, operational amplifier U11C (TL084), resistance R 37, resistance R 40, resistance R 35, resistance R 33, resistance R 34, resistance R 41, capacitor C 38, diode D13, diode D12 (IN4148) form absolute value voltage amplifier circuit.Phase voltage becomes low voltage signal through mutual inductor translation circuit scaling transformation, and entering the arrangement of voltage signal amplifying circuit becomes standard low voltage signal, enters absolute value voltage amplifier circuit positive and negative two-way input signal is become to unipolar output signal.By micro processor leg VADIN, input built-in A/D change-over circuit and become digital signal for microprocessor samples.
Accompanying drawing 11 has provided the circuit diagram of single-phase voltage zero-crossing detection circuit of the electric energy meter identifying information collector of the embodiment of the present invention.This circuit is for detection of sampling phase voltage zero crossing.When voltage arrives zero crossing, produce zero passage interrupt trigger signal to microprocessor control unit, to control, data send and the time synchronized of sampling.
Voltage over zero testing circuit forms: resistance R 74, resistance R 75, resistance R 12, capacitor C 37, diode D14 (IN4148), voltage comparator integrated circuit U10B (LM393) forms voltage over zero testing circuit, wherein resistance R 74, resistance R 75 form the sluggish loop of the homophase positive feedback branch of this circuit, the frequent flop phenomenon of output level occurring when zero crossing is shaken to remove voltage.When input phase voltage signal is positive voltage, output high level, when input phase voltage signal is low-voltage, output low level, voltage over zero is level flip-flop transition.The level energizing signal of output enters micro processor leg STS and triggers zero passage interruption.
Accompanying drawing 12 has provided the circuit diagram of microcontroller circuit of the electric energy meter identifying information collector of the embodiment of the present invention.Operation embedded Control program, realize data send controls, data sampling receiving and analyzing, voltage zero-cross detection, by the functions such as RS485 interface reading power meters address code that are connected with electric energy meter.This microcontroller circuit adopts the STM32 microprocessor chip of ARM series, and electric capacity is set chip periphery or capacitance-resistance filter branch road is for elimination power supply ripple, improves the supply voltage precision that chip is used.Microprocessor sends Tidal stress high level signal by pin POUT to phase line power frequency component modulation circuit, realizes data and sends control; By pin VADIN, the simulating signal of power-frequency voltage sample circuit output is introduced to built-in A/D change-over circuit and be transformed into digital signal, realize data sampling receiving and analyzing; By pin STS, the voltage zero-cross trigging signal of voltage over zero testing circuit output is introduced, trigger voltage zero passage is interrupted, and realizes the time synchronized of data input and data output; By pin RXD0, TXD0, RS485AS, be connected with RS485 interface circuit, by RS485 communication interface reading power meters address code.
Accompanying drawing 13 has provided the circuit diagram of RS485 communication interface circuit of the electric energy meter identifying information collector of the embodiment of the present invention.Chip SN65LBC184, resistance R 12, resistance R 13 form RS485 communication interface circuit, pin RXD0, pin TXD0, pin RS485AS are connected with microprocessor, pin AB485, pin AA485 are connected with electric energy meter 485 communication interfaces, reading power meters address code.
The embodiment of the present invention adopts the input of 220V alternating current output+12V ,+5V ,-5V ,+3.3V DC voltage after transformer pressure-reducing and current rectifying and wave filtering circuit to provide power supply to each circuit unit, because belonging to conventional conventional art, at this, no longer indicates power circuit diagram.
Accompanying drawing 14 has provided the background computer software flow figure of the embodiment of the present invention.With reference to accompanying drawing 14.Whether background computer software flow of the present invention is: after " beginning ", enter " sending station district identifying information acquisition ", to enter " by GPRS sending station district identifying information acquisition ", enter again " whether receiving platform district identifying information data ", otherwise directly enter " whether receiving platform district identifying information data ", otherwise return to " whether sending station district identifying information acquisition ", to enter " originating station district numbering ", enter again " by GPRS, sending the identifying information data back order of specifying platform district numbering ", enter again " by GPRS, receiving the identifying information returned data of specifying platform district numbering ", enter again " whether last district numbers ", to turn back to " whether sending station district identifying information acquisition ", otherwise enter into " selecting next platform district numbering ", turn back to again " by GPRS, receiving the identifying information returned data of specifying platform district numbering "
Accompanying drawing 15 has provided the software flow pattern of embodiment of the present invention Tai district identification controller.With reference to accompanying drawing 15.The software flow of of the present invention district's identifying information controller is: after " beginning ", enter " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", to enter " through GPRS, passing this TV station district customer identification information back background computer system ", enter again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise directly enter " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise enter, " along A, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along A, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along B, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", turn back to again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", along C, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, turn back to " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", receive the customer identification information acquisition that background computer system is sent through GPRS interface, enter and " generate respectively along A, B, C sends the separate attribute information broadcasting command in Tai district mutually ", enter into again " along A, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along B, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along C, sending mutually the separate attribute information broadcasting command in Tai district ", enter again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ", enter again " along A, sending mutually electric energy meter querying command ", enter again " along A, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along B, sending mutually electric energy meter querying command ", enter again " along B, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along C, sending mutually electric energy meter querying command ", enter again " along C, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", " prestore Dao Tai district under electric energy meter directory ", enter into again " whether last district under electric energy meter number ", along C, do not receive mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded, enter " under Cong Tai district, in electric energy meter directory, deleting this electric energy meter ", enter again " whether last district under electric energy meter number ", to turn back to " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", otherwise " get next electric energy meter number ", return to again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ".
Accompanying drawing 16 has provided the software flow pattern of the collector of the embodiment of the present invention.With reference to accompanying drawing 16.The software flow of collector of the present invention is: after " beginning ", enter " whether being to reset and start after installing ", otherwise enter into " whether receiving the separate attribute information broadcasting command in platform district ", to enter " by RS485 reading power meters number ", enter again " whether conforming to the electric energy meter number prestoring ", otherwise enter " generating the new number upload command that electric energy meter is installed ", enter again " whether communication port is occupied ", to turn back to " whether communication port is occupied ", otherwise enter " sending the new number upload command that electric energy meter is installed ", enter again " whether receiving the separate attribute information broadcasting command in platform district ", conform to the electric energy meter number prestoring and enter " whether receiving the separate attribute information broadcasting command in platform district ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " whether conforming to the collector separate attribute data in Tai district that prestores ", what do not conform to enters " generating the new number upload command that electric energy meter is installed ", to enter " whether receiving electric energy meter querying command ", whether no turning back to " receives the separate attribute information broadcasting command in platform district ", to enter " whether the electric energy meter number of querying command conforms to ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " the separate attribute acknowledgement command in generating electric energy Biao Tai district ", enter again " sending the separate attribute acknowledgement command in electric energy meter Tai district ", finally turn back to " whether receiving the separate attribute information broadcasting command in platform district ".
Implement when of the present invention, by above-mentioned software flow, those skilled in the art can compile out complete source program.
Claims (4)
1.Yi Zhongtai district user automatic recognition system, it is characterized by: comprise platform district identifying information controller, user's electric energy meter identifying information collector and hind computation machine management system, described Tai district identifying information controller mainly comprises the GPRS communication interface circuit being connected with microcontroller circuit, the three-phase main-frequency signal of communication modulation circuit being connected with microcontroller circuit respectively, three-phase main-frequency signal of communication sample circuit, Zero Crossing Point for Three Phase Voltage testing circuit, with GPRS communication interface circuit, three-phase main-frequency signal of communication modulation circuit, three-phase main-frequency signal of communication sample circuit, the microcontroller circuit that Zero Crossing Point for Three Phase Voltage testing circuit is connected, described user's electric energy meter identifying information collector mainly comprises the RS485 communication interface circuit being connected with microprocessor control circuit, the single phase industrial frequence signal of communication modulation circuit being connected with microprocessor control circuit respectively, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, the microprocessor control circuit being connected with RS485 communication interface circuit, single phase industrial frequence signal of communication modulation circuit, single phase industrial frequence signal of communication sample circuit, single-phase voltage zero-crossing detection circuit, described hind computation machine management system mainly comprises computing machine, data base management system (DBMS), GPRS communicator etc.By being arranged near the automatic sending station of identifying information controller district, Tai district identifying information platform district transformer, electric energy meter identifying information collector automatically gathers through power distribution network phase line and transmits Tai district user identification data, then through power distribution network, pass back in controller, by controller, adopt GPRS communication mode to upload to background computer system again, realize staff not on-site, directly use hind computation machine management system can obtain the function of electrical network Ge Tai district transformer customer identification information, reach the object that improves platform district user census operations efficiency and automaticity.
2. a kind of district user automatic recognition system according to claim 1, it is characterized by: background computer software flow is, after " beginning ", enter " whether sending station district identifying information acquisition ", to enter " by GPRS sending station district identifying information acquisition ", enter again " whether receiving platform district identifying information data ", otherwise directly enter " whether receiving platform district identifying information data ", otherwise return to " whether sending station district identifying information acquisition ", to enter " originating station district numbering ", enter again " by GPRS, sending the identifying information data back order of specifying platform district numbering ", enter again " by GPRS, receiving the identifying information returned data of specifying platform district numbering ", enter again " whether last district numbers ", to turn back to " whether sending station district identifying information acquisition ", otherwise enter into " selecting next platform district numbering ", turn back to again " by GPRS, receiving the identifying information returned data of specifying platform district numbering ".
3. a kind of district user automatic recognition system according to claim 1, it is characterized by: the software flow of platform district identifying information controller is, after " beginning ", enter " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", to enter " through GPRS, passing this TV station district customer identification information back background computer system ", enter again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise directly enter " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", otherwise enter, " along A, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along A, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along B, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", enter into again and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", along B, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, directly enter and " along C, whether receive mutually new installation electric energy meter address code, the separate information data in platform district ", to enter " electric energy meter directory under the Dao Tai district that prestores ", turn back to again " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", along C, do not receive mutually new installation electric energy meter address code, the separate information data in platform district, turn back to " whether receiving the customer identification information acquisition that background computer system is sent through GPRS interface ", receive the customer identification information acquisition that background computer system is sent through GPRS interface, enter and " generate respectively along A, B, C sends the separate attribute information broadcasting command in Tai district mutually ", enter into again " along A, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along B, sending mutually the separate attribute information broadcasting command in Tai district ", enter into again " along C, sending mutually the separate attribute information broadcasting command in Tai district ", enter again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ", enter again " along A, sending mutually electric energy meter querying command ", enter again " along A, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along B, sending mutually electric energy meter querying command ", enter again " along B, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", to enter " electric energy meter directory under the Dao Tai district that prestores ", otherwise enter " along C, sending mutually electric energy meter querying command ", enter again " along C, whether receiving mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded ", " prestore Dao Tai district under electric energy meter directory ", enter into again " whether last district under electric energy meter number ", along C, do not receive mutually the separate attribute reply data in electric energy meter platform district that correspondence is uploaded, enter " under Cong Tai district, in electric energy meter directory, deleting this electric energy meter ", enter again " whether last district under electric energy meter number ", to turn back to " whether receive this TV station district customer identification information that background computer system sends through GPRS interface and pass order back ", otherwise " get next electric energy meter number ", return to again " the affiliated electric energy meter directory in An Tai district is generating electric energy table querying command successively ".
4. a kind of district user automatic recognition system according to claim 1, it is characterized by: the software flow of collector is: after " beginning ", enter " whether being to reset and start after installing ", otherwise enter into " whether receiving the separate attribute information broadcasting command in platform district ", to enter " by RS485 reading power meters number ", enter again " whether conforming to the electric energy meter number prestoring ", otherwise enter " generating the new number upload command that electric energy meter is installed ", enter again " whether communication port is occupied ", to turn back to " whether communication port is occupied ", otherwise enter " sending the new number upload command that electric energy meter is installed ", enter again " whether receiving the separate attribute information broadcasting command in platform district ", conform to the electric energy meter number prestoring and enter " whether receiving the separate attribute information broadcasting command in platform district ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " whether conforming to the collector separate attribute data in Tai district that prestores ", what do not conform to enters " generating the new number upload command that electric energy meter is installed ", to enter " whether receiving electric energy meter querying command ", whether no turning back to " receives the separate attribute information broadcasting command in platform district ", to enter " whether the electric energy meter number of querying command conforms to ", otherwise turn back to " whether receiving the separate attribute information broadcasting command in platform district ", to enter into " the separate attribute acknowledgement command in generating electric energy Biao Tai district ", enter again " sending the separate attribute acknowledgement command in electric energy meter Tai district ", finally turn back to " whether receiving the separate attribute information broadcasting command in platform district ".
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| WO2022121887A1 (en) * | 2020-12-09 | 2022-06-16 | 南方电网电力科技股份有限公司 | High-frequency signal-based power consumer relative position identification apparatus, method and device |
| CN112596018A (en) * | 2020-12-09 | 2021-04-02 | 南方电网电力科技股份有限公司 | High-frequency signal-based power consumer relative position identification device, method and equipment |
| CN113252978A (en) * | 2021-05-11 | 2021-08-13 | 国网浙江省电力有限公司营销服务中心 | Phase identification method and identification device for target power supply area |
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Application publication date: 20140903 |