CN204408017U - A kind of area user identification zone device - Google Patents
A kind of area user identification zone device Download PDFInfo
- Publication number
- CN204408017U CN204408017U CN201520031642.8U CN201520031642U CN204408017U CN 204408017 U CN204408017 U CN 204408017U CN 201520031642 U CN201520031642 U CN 201520031642U CN 204408017 U CN204408017 U CN 204408017U
- Authority
- CN
- China
- Prior art keywords
- processor
- phase
- sends
- input
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
A kind of area user identification zone device, comprise platform district information generator and message recipient, described district's information generator comprises sending processor, three-phase power frequency signal sample circuit and three-phase pulse generative circuit, the three-phase voltage of the input termination platform district step down side of described three-phase power frequency signal sample circuit, output receives and sends the input port of processor, the input of described three-phase pulse generative circuit receives and sends the output port of processor, its three-phase pulse exports the transmission line of termination platform district step down side, described message recipient is connected on the end of incoming cables of user's electric energy meter.The utility model utilizes pulse current to carry out information transmission, realizes the identification of transformer platform area, separate, circuit.This device accurately can identify the corresponding relation of power consumer and supply transformer circuit, prevents false judgment and string transformer, road phenomenon of getting lines crossed.
Description
Technical field
The utility model relates to a kind of device for identifying power consumer and supply line's membership, belongs to power transmission and distribution technical field.
Background technology
Area user identification zone device (or claiming inquiring instrument, business generaI investigation instrument etc.) is that power department is in order to examine the device of power consumer and supply line's membership, which platform transformer user is by, where powers mutually to utilize area user identification zone device to investigate thoroughly, to realize fine-grained management of marketing, reach the object of consumption reduction impairment.
Traditional area user identification zone device all uses power carrier to carry out the transmission of data, i.e. additional high carrier signal on each phase power line, make it along power line transmission, on power line, increase carrier wave receiving system, to realize the differentiation of line properties (any platform transformer, any bar circuit, any mutually power supply) simultaneously.This method is applicable to the old community of electricity consumption small scale, circuit simple (such as periphery only has a transformer), but then can not make accurate judgement for the community that in large scale, adjacent distribution transformer is more at all.Its reason is that high-frequency carrier signal can carry out omnirange transmission on connecting line, even can cross supply transformer and be sent on other power circuit, even if on the circuit not having physical connection, also likely receives the carrier signal that adjacent lines sends.Therefore, the orientation of the information that how to realize on power line and determine line transmission, just becomes the difficult problem that relevant technologies personnel face.
Utility model content
The purpose of this utility model is the drawback for prior art, provides a kind of area user identification zone device, helps power department accurately to identify the membership of power consumer and supply line.
Problem described in the utility model solves with following technical proposals:
A kind of area user identification zone device, comprise platform district information generator and message recipient, described district's information generator comprises sending processor, three-phase power frequency signal sample circuit and three-phase pulse generative circuit, the three-phase voltage of the input termination platform district step down side of described three-phase power frequency signal sample circuit, output receives and sends the input port of processor, the input of described three-phase pulse generative circuit receives and sends the output port of processor, its three-phase pulse exports the transmission line of termination platform district step down side, described message recipient is connected on the end of incoming cables of user's electric energy meter.
Above-mentioned area user identification zone device, described three-phase power frequency signal sample circuit comprises three voltage waveforms and zero passage collecting unit, each voltage waveform and zero passage collecting unit comprise sending-end voltage instrument transformer, not gate and two operational amplifiers, the phase voltage of the input termination platform district step down side of described sending-end voltage instrument transformer; First operational amplifier is connected into voltage follower, and its input receives and sends the output of terminal voltage instrument transformer, and output receives and sends the input port of processor; Second operational amplifier is connected into comparator, and two input receives and sends two outputs of terminal voltage instrument transformer respectively, and output receives and sends the input port of processor through not gate.
Above-mentioned area user identification zone device, described three-phase pulse generative circuit comprises three pulse generate unit, each pulse generate unit comprises triode, photoelectrical coupler, controllable silicon and inductance, the base stage of described triode receives and sends the output port of processor through coupling resistance, collector electrode connects positive source, the light-emitting diode ground connection of emitter in photoelectrical coupler, be connected to after described controllable silicon is connected in series with inductance between corresponding phase line and zero line, silicon controlled controls the photoelectric tube of pole in photoelectrical coupler and connects positive source.
Above-mentioned area user identification zone device, described message recipient comprises receiving processor and three receiving elements, each receiving element comprises receiving-end voltage instrument transformer and the 3rd operational amplifier, the end of incoming cables voltage of the input terminating user electric energy meter of described receiving-end voltage instrument transformer, described 3rd operational amplifier is connected into voltage follower, the output of its input termination receiving-end voltage instrument transformer, exports the input port of termination receiving processor.
Above-mentioned area user identification zone device, described sending processor and receiving processor are equipped with keyboard, memory and display.
The utility model utilizes pulse current to carry out information transmission, realizes the identification of transformer platform area, separate, circuit.This device accurately can identify the corresponding relation of power consumer and supply transformer circuit, prevents false judgment and string transformer, road phenomenon of getting lines crossed.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the block diagram of system of the present utility model;
The electrical schematic diagram of Tu2Shi Tai district information generator;
Fig. 3 is the electrical schematic diagram of message recipient.
In figure, each label is: U1, sending processor, U2, not gate, U3, photoelectrical coupler, U4, receiving processor, F1 ~ F3, first operational amplifier ~ the 3rd operational amplifier, PT1, sending-end voltage instrument transformer, PT2, receiving-end voltage instrument transformer, R, coupling resistance, Q, triode, D, controllable silicon, L, inductance, KB1, transmitter keyboard, KB2, receiver keyboard, M1, transmitter memory, M2, receiver memory, LCD1, transmitter display, LCD2, receiver display, CJ-1 ~ CJ-3, first voltage waveform and zero passage collecting unit ~ tertiary voltage waveform and zero passage collecting unit, MC-1 ~ MC-3, first pulse generate unit ~ the 3rd pulse generate unit, JS-1 ~ JS-3, first receiving element ~ the 3rd receiving element.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model is primarily of platform district information generator and message recipient two parts composition.Wherein, platform district information generator comprises sending processor U1, transmitter keyboard KB1, transmitter memory M1, transmitter display lcd 1, three voltage waveforms that structure is identical and the zero passage collecting unit pulse generate unit identical with three structures; Message recipient comprises receiving processor U4, receiver keyboard KB2, receiver memory M2, receiver display lcd 2 and three receiving elements.Platform district information generator sends three road signals by three phase lines, received respectively by three receiving elements of message recipient, the collection of three road signals, transmission and reception are just the same, are described below to be connected on the first voltage waveform of A phase and zero passage collecting unit and the first pulse generate unit.
In Fig. 2, sending-end voltage instrument transformer PT1 in first voltage waveform and zero passage collecting unit CJ-1 is voltage sensor, be used for converting the sine wave signal Ua of A phase to ac small signal, this signal is TLC2274 by the first operational amplifier F1(model) voltage follower that forms directly is connected to the A/D translation interface of sending processor U1 after arranging, and be convenient to sending processor U1 and carry out processing computings such as () calculator magnitude of voltage, harmonic wave, waveforms.The comparator be simultaneously made up of the second operational amplifier F2 converts sine wave signal Ua to square-wave signal, the CAP1 mouth of sending processor U1 is sent into through not gate U2, as the signal capture benchmark in moment at zero point, (function of the CAP pin of sending processor U1 catches this change at the moment producing level change at signal, and the time that record produces.Therefore can carry out cumulative timing according to the input interrupt signal of signal, guarantee the control signal sending the first pulse generate unit MC-1 at the zero crossing of signal).Ensure that signal Ua rising edge is sent out processor U1 and catches in real time, and utilize timer to start timing.For 50Hz(20ms cycle) AC signal Ua, when timer up to 9.5ms(10ms be zero crossing) time, can send pulse signal, the time span of pulse signal is 200us.The time that pulse signal sends the closer to zero crossing, generation pulse less, otherwise larger.
Sending processor U1 is dsp chip, and model is TMS320F2812, is responsible for gathering voltage signal, and sends control signal at the next zero crossing of signal.In addition, sending processor U1 inside carries 16 A/D converters, the voltage sine wave signal of operational amplifier process can be converted to digital signal, calculate its magnitude of voltage, and be benchmark with 220V, in proportion in advance or delayed control signal send the time, ensure that the amplitude of control wave is always most suitable.
Sending processor U1 converts a signal to by needing the coded message sent, when this position is " 1 " time, then sending processor U1 sends control signal when capturing sinusoidal wave zero crossing, pulse generation circuit is made to send pulse in the A phase of AC220V circuit, if and this position is " 0 ", then sending processor U1 does not send control signal when capturing sinusoidal wave zero crossing.
Second voltage waveform and zero passage collecting unit CJ-2 identical with the first voltage waveform and zero passage collecting unit CJ-1 with the operation principle of tertiary voltage waveform and zero passage collecting unit CJ-3.
Transmitter keyboard KB1 and transmitter display lcd 1 are for realizing display and the man-machine interaction of information, and transmitter memory M1 is used for preserving the data in test process.
The current impulse control signal that sending processor U1 sends sends into photoelectrical coupler U3 after triode Q amplification shaping, convert the electrical signal to light signal, light signal controls turning on and off of bidirectional triode thyristor D after converting the signal of telecommunication again to, realizes the Secure isolation of weak electric signal to forceful electric power signal.When bidirectional triode thyristor D opens, between phase line A and zero line N, produce the immediate current of Microsecond grade, and transmit along A phase line road direction far-end.Inductance L is used for limiting the rush of current that grid voltage mutation and switching overvoltage cause, the spike comprised in smooth voltage.
The decode procedure of receiving element is analyzed each sinusoidal waveform exactly and whether be there is current pulse signal, if existed, corresponding position is set to " 1 ", is not just " 0 ", thus composition 16 binary data, complete decoding.
In Fig. 3, receiving-end voltage instrument transformer PT2 is voltage sensor, be used for converting sine wave signal Ua to ac small signal, this signal is directly connected to the A/D translation interface of receiving processor U4 after the 3rd operational amplifier F3 arranges, and is convenient to receiving processor U4 and carries out processing (calculating its magnitude of voltage, harmonic wave, waveform etc.).The built-in A/D of receiving processor U4 completes the sampling of every cycle 120 data, the data of 50 cycles is saved.First the position of zero crossing is analyzed during decoding, then the data in 1ms before zero passage starting point are taken out (6), without the waveform of pulse according to sinusoidal variations, then can there is null value in nonzero value position in the waveform with pulse, can judge that whether this cycle is containing pulse, judges one by one to follow-up cycle, until produce one group of data thus, compare with particular data again, the data that have received needs are unanimously then described.Such as receive: 00101010.So, its representative data be 0x2A, namely represent that this is the circuit of No. 2 transformer A phases.
Claims (5)
1. an area user identification zone device, it is characterized in that, it comprises platform district information generator and message recipient, described district's information generator comprises sending processor (U1), three-phase power frequency signal sample circuit and three-phase pulse generative circuit, the three-phase voltage of the input termination platform district step down side of described three-phase power frequency signal sample circuit, output receives and sends the input port of processor (U1), the input of described three-phase pulse generative circuit receives and sends the output port of processor (U1), its three-phase pulse exports the transmission line of termination platform district step down side, described message recipient is connected on the end of incoming cables of user's electric energy meter.
2. a kind of area user identification zone device according to claim 1, it is characterized in that, described three-phase power frequency signal sample circuit comprises three voltage waveforms and zero passage collecting unit, each voltage waveform and zero passage collecting unit comprise sending-end voltage instrument transformer (PT1), not gate (U2) and two operational amplifiers, the phase voltage of the input termination platform district step down side of described sending-end voltage instrument transformer (PT1); First operational amplifier (F1) is connected into voltage follower, and its input receives and sends the output of terminal voltage instrument transformer (PT1), and output receives and sends the input port of processor (U1); Second operational amplifier (F2) is connected into comparator, and two input receives and sends two outputs of terminal voltage instrument transformer (PT1) respectively, and output receives and sends the input port of processor (U1) through not gate (U2).
3. a kind of area user identification zone device according to claim 1 and 2, it is characterized in that, described three-phase pulse generative circuit comprises three pulse generate unit, each pulse generate unit comprises triode (Q), photoelectrical coupler (U3), controllable silicon (D) and inductance (L), the base stage of described triode (Q) receives and sends the output port of processor (U1) through coupling resistance (RQ), collector electrode connects positive source, the light-emitting diode ground connection of emitter in photoelectrical coupler (U3), described controllable silicon (D) is connected between corresponding phase line and zero line after being connected in series with inductance (L), the photoelectric tube of control pole in photoelectrical coupler (U3) of controllable silicon (D) connects positive source.
4. a kind of area user identification zone device according to claim 3, it is characterized in that, described message recipient comprises receiving processor (U4) and three receiving elements, each receiving element comprises receiving-end voltage instrument transformer (PT2) and the 3rd operational amplifier (F3), the end of incoming cables voltage of the input terminating user electric energy meter of described receiving-end voltage instrument transformer (PT2), described 3rd operational amplifier (F3) is connected into voltage follower, the output of its input termination receiving-end voltage instrument transformer (PT2), exports the input port of termination receiving processor (U4).
5. a kind of area user identification zone device according to claim 4, is characterized in that, described sending processor (U1) and receiving processor (U4) are equipped with keyboard, memory and display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520031642.8U CN204408017U (en) | 2015-01-17 | 2015-01-17 | A kind of area user identification zone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520031642.8U CN204408017U (en) | 2015-01-17 | 2015-01-17 | A kind of area user identification zone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408017U true CN204408017U (en) | 2015-06-17 |
Family
ID=53431852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520031642.8U Expired - Fee Related CN204408017U (en) | 2015-01-17 | 2015-01-17 | A kind of area user identification zone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204408017U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719470A (en) * | 2016-02-02 | 2016-06-29 | 厦门中天微电子科技有限公司 | Power-line carrier centralized reading system and method for automatically confirming node area attribution through system |
| CN108226672A (en) * | 2017-12-14 | 2018-06-29 | 国网北京市电力公司 | Taiwan area recognition methods, system and device in power distribution network |
| CN108896821A (en) * | 2018-05-09 | 2018-11-27 | 国网黑龙江省电力有限公司哈尔滨供电公司 | A kind of low-voltage platform area load identification device |
| CN109782090A (en) * | 2019-01-08 | 2019-05-21 | 国网安徽省电力有限公司合肥供电公司 | A method of judging that electricity consumer becomes relationship |
| CN110674158A (en) * | 2019-10-15 | 2020-01-10 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN110907717A (en) * | 2019-10-24 | 2020-03-24 | 国网天津静海供电有限公司 | Medium voltage line becomes relation discernment appearance |
| CN111610361A (en) * | 2020-05-14 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | Electric power Internet of things random measurement system and method |
| CN115808588A (en) * | 2023-01-18 | 2023-03-17 | 辽宁汉华信息工程有限公司 | Pulse characteristic signal platform area topology identification method based on Rogowski coil |
-
2015
- 2015-01-17 CN CN201520031642.8U patent/CN204408017U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719470A (en) * | 2016-02-02 | 2016-06-29 | 厦门中天微电子科技有限公司 | Power-line carrier centralized reading system and method for automatically confirming node area attribution through system |
| CN105719470B (en) * | 2016-02-02 | 2019-04-19 | 厦门中天微电子科技有限公司 | A kind of method that power line carrier centralized meter-reading system and the system automatically confirm that node platform area ownership |
| CN108226672A (en) * | 2017-12-14 | 2018-06-29 | 国网北京市电力公司 | Taiwan area recognition methods, system and device in power distribution network |
| CN108896821A (en) * | 2018-05-09 | 2018-11-27 | 国网黑龙江省电力有限公司哈尔滨供电公司 | A kind of low-voltage platform area load identification device |
| CN109782090A (en) * | 2019-01-08 | 2019-05-21 | 国网安徽省电力有限公司合肥供电公司 | A method of judging that electricity consumer becomes relationship |
| CN109782090B (en) * | 2019-01-08 | 2021-05-25 | 国网安徽省电力有限公司合肥供电公司 | Method for judging power consumer variable relation |
| CN110674158A (en) * | 2019-10-15 | 2020-01-10 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN110674158B (en) * | 2019-10-15 | 2022-02-15 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN110907717A (en) * | 2019-10-24 | 2020-03-24 | 国网天津静海供电有限公司 | Medium voltage line becomes relation discernment appearance |
| CN111610361A (en) * | 2020-05-14 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | Electric power Internet of things random measurement system and method |
| CN115808588A (en) * | 2023-01-18 | 2023-03-17 | 辽宁汉华信息工程有限公司 | Pulse characteristic signal platform area topology identification method based on Rogowski coil |
| CN115808588B (en) * | 2023-01-18 | 2023-05-05 | 辽宁汉华信息工程有限公司 | Pulse characteristic signal area topology identification method based on rogowski coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204408017U (en) | A kind of area user identification zone device | |
| CN103944607B (en) | Low-voltage powerline carrier communication signal supervisory instrument | |
| CN201828659U (en) | Inspection device of digitalized electric energy meter | |
| CN201955387U (en) | Zero-crossing detecting circuit with low power consumption for carrier wave communication | |
| CN104777388A (en) | Method for recognizing power supply branch circuit users through zero sequence current sampling method | |
| CN102435907A (en) | Polarity test method for electronic current transformer | |
| CN102830266A (en) | Phase discriminating circuit of residual current phase | |
| CN204188748U (en) | A kind of intelligent distribution network fault fast positioning device | |
| CN204008958U (en) | Intelligent transformer station transmission line travelling wave fault location device | |
| CN206573671U (en) | Power distribution network intelligent self-adaptive recording monitoring system | |
| CN202837386U (en) | Measuring device for transient voltage signals | |
| CN203519746U (en) | Digital electric energy quality monitoring device | |
| CN104901741A (en) | Power system intelligent station fiber interface conversion apparatus | |
| CN204559632U (en) | Platform district electricity consumption user recognition system | |
| CN204287388U (en) | A kind of bushing shell for transformer insulation state on-line monitoring device | |
| CN106019202A (en) | Multi-channel digital standard electric energy meter | |
| CN103499807B (en) | A kind of method of calibration eliminating digital electricity meter truncated error | |
| CN203630218U (en) | Intelligent electric meter based on plastic optical fiber communication | |
| CN103837854A (en) | Digital electric energy meter calibration device based on FT3 interface | |
| CN209182487U (en) | A kind of electronic mutual inductor angular difference standard set-up | |
| CN206710508U (en) | A kind of harmonic measurement device | |
| CN204241561U (en) | A kind of online energy monitor end device | |
| CN202305656U (en) | Photovoltaic inverter grid-connected intelligent detection device | |
| CN203101499U (en) | Voltage acquisition circuit | |
| CN204884120U (en) | Wireless meter -copy device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20170117 |