CN101938122A - Electric control system and method applied to automatic meter verification table of electric energy meter - Google Patents
Electric control system and method applied to automatic meter verification table of electric energy meter Download PDFInfo
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- CN101938122A CN101938122A CN2010102293795A CN201010229379A CN101938122A CN 101938122 A CN101938122 A CN 101938122A CN 2010102293795 A CN2010102293795 A CN 2010102293795A CN 201010229379 A CN201010229379 A CN 201010229379A CN 101938122 A CN101938122 A CN 101938122A
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Abstract
The invention discloses an electric control system and an electric control method which are applied to an automatic meter verification table of an electric energy meter. The electric control system comprises a PC (Personal Computer) machine, a micro control unit, a control module and a verification station, wherein the PC machine controls the work of the control module through the micro control unit; the verification station is connected to the control module; the control module is provided with an external power input end; the control module comprises a master relay, a switching relay, a master relay operating/break accelerating circuit, a switching relay control circuit, a flip and flop generator, a filtering sampling circuit and an isolation switching circuit. The electric control system and the electric control method can automatically switch an electric energy meter with different access modes and has an overcurrent protection function, thereby prolonging the service life of the meter verification table.
Description
Technical field
The present invention relates to inspection table platform, particularly electric-control system and the electric-control method on the inspection table platform to electric energy meter.
Background technology
In electric power system, various electric energy meters need carry out verification to its electric energy metering error before networking, and the electric energy meter that electric energy error is qualified just allows to network and uses.Because of the use amount of electric energy meter is big, for the more electric energy meter of verification, improve the operating efficiency of metrological service, use a kind of electric energy meter inspection table platform of special use at present.At this inspection table platform mainly is the electric energy meter of calibrating " directly access type electric energy meter " and " through instrument transformer access type electric energy meter " two kinds of different access waies, different because of the input and output definition of junction block, needs change pocket watch seat to change the connection mode of electric energy meter.
On automatic assembly line inspection table platform some are examined and determine the calibration operation that station does not need to carry out the power supply of accurate power source in earlier stage, only need to introduce the mains-supplied of isolating.If do not automatically switch module, brought very big trouble to operating personnel, and efficient is also low, and, may be because of electric energy meter or the PC software operation human error who has adopted different access waies on the streamline, and the access way that makes the mistake causes overcurrent or short circuit.So examining and determine station in the early stage of automation inspection table platform provides different access type electric energy meter automatic switchover modules and overcurrent protection module to necessitate to the part of electric energy meter power supply.
Summary of the invention
First purpose of the present invention is for a kind of electric energy meter electric-control system on the inspection table platform automatically that is applied to is provided, and this electric control system can be realized the automatic switchover of different access way electric energy meters, and has the effect of overcurrent protection, has improved the life-span of inspection table platform.
Second purpose of the present invention is for a kind of electric energy meter electric-control method on the inspection table platform automatically that is applied to is provided, and this electric control method can be realized the automatic switchover of different access way electric energy meters, and has the effect of overcurrent protection, has improved the life-span of inspection table platform.
For achieving the above object, a kind of electric energy meter electric-control system on the inspection table platform automatically that is applied to, comprise PC, micro-control unit, control module and calibrating station, PC is by the work of micro-control unit controls control module, the calibrating station is connected on the control module, and control module is provided with the input of dispatch from foreign news agency; Described control module comprises total relay, transfer relay, total relay adhesive/disconnection accelerating circuit, transfer relay control circuit, bistable flip-flop circuit, filtering sample circuit and isolates change-over circuit; Described outer electrical input is located on total relay and the filtering sample circuit; The output of total relay is connected with the input of transfer relay, and the output of transfer relay is connected with the calibrating station; The input of bistable flip-flop circuit is connected with the output of isolating change-over circuit with micro-control unit, the output of bistable flip-flop circuit is connected with the input of total relay adhesive/disconnection accelerating circuit, and the output of total relay adhesive/disconnection accelerating circuit is connected with the input of total relay; The input of described transfer relay control circuit is connected with micro-control unit, and the output of transfer relay control circuit is connected with the input of transfer relay; The output of described filtering sample circuit is connected with the input of isolating change-over circuit.
Above-mentioned electric-control system, PC control micro-control unit sends the relay switching signal by the transfer relay control circuit to transfer relay, just can adjust the connected mode of electric energy meter to be checked, therefore, has made things convenient for operating personnel's operation, has improved verification efficient.When occurring because of the different short circuit overcurrents that cause of electric energy meter access way; the filtering sample circuit sends overload signal accurately by isolating change-over circuit to the bistable flip-flop circuit; the bistable flip-flop circuit is changed after receiving signal and is exported to total relay adhesive/disconnection accelerating circuit; and total relay is disconnected by total relay adhesive/disconnection accelerating circuit; played the effect of protection check-out console, the useful life of having improved check-out console.
As improvement, the output of described bistable flip-flop circuit is connected with state-feedback circuit, the feedback signal of micro-control unit accepting state feedback circuit.Like this, PC can detect the operating state and the working condition of check-out console timely, so that the sending of subsequent instructions.
For reaching above-mentioned second purpose, a kind of be applied to electric energy meter automatically the electric-control method on the inspection table platform may further comprise the steps:
1) PC control micro-control unit sends the relay switching signal by the transfer relay control circuit to transfer relay, to adjust the connected mode of electric energy meter to be checked;
2) PC control micro-control unit sends the signal of telecommunication to total relay, makes total relay closes by bistable flip-flop circuit and total relay adhesive/disconnection accelerating circuit;
3) the filtering sample circuit carries out the sampling of not timing to dispatch from foreign news agency, when occurring because of the different short circuit overcurrents that cause of electric energy meter access way, the filtering sample circuit sends overload signal accurately by isolating change-over circuit to the bistable flip-flop circuit, the bistable flip-flop circuit is changed after receiving signal and is exported to total relay adhesive/disconnection accelerating circuit, and by total relay adhesive/disconnection accelerating circuit total relay is disconnected.Play the effect of protection check-out console, the useful life of having improved check-out console.
As improvement, the bistable flip-flop circuit after receiving signal simultaneously by state-feedback circuit with total relay status signal feedback in micro-control unit, micro-control unit returns total relay status signal on the PC, make PC can detect the operating state and the working condition of check-out console timely, so that the sending of subsequent instructions.
Description of drawings
Fig. 1 is a frame construction drawing of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further elaborated.
As shown in Figure 1 be applied to the electric energy meter electric control system on the inspection table platform automatically, comprise PC 1, micro-control unit 2, control module 3 and calibrating station 4.Control unit 3 comprises total relay 31, transfer relay 32, total relay adhesive/disconnection accelerating circuit 33, transfer relay control circuit 34, bistable flip-flop circuit 35, filtering sample circuit 36, isolates change-over circuit 37 and state-feedback circuit 38.
PC 1 is connected with micro-control unit 2.Micro-control unit 2 is provided with total relay control signal input, transfer relay signal input end and feedback signal terminal.
Outer electrical input 5 is located on total relay 31 and the filtering sample circuit 36; The output of total relay 31 is connected with the input of transfer relay 32, and the output of transfer relay 32 is connected with calibrating station 4; Total relay control signal input in the input of bistable flip-flop circuit 35 and the micro-control unit 2 and the output of isolating change-over circuit 37 are connected, the output of bistable flip-flop circuit 35 is connected with the input of total relay adhesive/disconnection accelerating circuit 33, and the output of total relay adhesive/disconnection accelerating circuit 33 is connected with the input of total relay 31; The input of described transfer relay control circuit 34 is connected with transfer relay signal input end in the micro-control unit 2, and the output of transfer relay control circuit 34 is connected with the input of transfer relay 32; The output of described filtering sample circuit 36 is connected with the input of isolating change-over circuit 37; The output connection status feedback circuit 38 of described bistable flip-flop circuit 35, the feedback signal of the feedback signal terminal accepting state feedback circuit in the micro-control unit.
The control method of this electric control system comprises the automatic switching method of the electric energy meter of different access waies and over-current protection method.
Wherein, automatic switching method is: the transfer relay signal input end in the PC 1 control micro-control unit 2 is sent signal, send the relay switching signal by transfer relay control circuit 34 to transfer relay 32, to adjust the connected mode of electric energy meter to be checked; Then, the total relay control signal input in the PC 1 control micro-control unit sends the signal of telecommunication, sends the signal of telecommunication to total relay 31, makes total relay closes by bistable flip-flop circuit 35 and total relay adhesive/disconnection accelerating circuit 33; Thereby reach the purpose of connecting electric energy meter and switching different access way electric energy meters.
Over-current protection method is: 36 pairs of dispatches from foreign news agency of filtering sample circuit are carried out the sampling of not timing, and in the present invention, what outer electrical input was imported is to isolate civil power; When occurring because of the different short circuit overcurrents that cause of electric energy meter access way, filtering sample circuit 36 sends overload signal accurately by isolating change-over circuit 37 to bistable flip-flop circuit 35, bistable flip-flop circuit 35 is changed after receiving signal and is exported to total relay adhesive/disconnection accelerating circuit 33, and by total relay adhesive/disconnection accelerating circuit total relay is disconnected.Play the effect of protection check-out console, the useful life of having improved check-out console.Simultaneously, bistable flip-flop circuit 35 after receiving signal by the feedback signal terminal in the state-feedback circuit with total relay status signal feedback in micro-control unit, micro-control unit returns total relay status signal on the PC, make PC can detect the operating state and the working condition of check-out console timely, so that the sending of subsequent instructions.
Claims (4)
1. one kind is applied to the electric energy meter electric-control system on the inspection table platform automatically, comprise PC, micro-control unit, control module and calibrating station, PC is by the work of micro-control unit controls control module, and the calibrating station is connected on the control module, and control module is provided with the input of dispatch from foreign news agency; It is characterized in that: described control module comprises total relay, transfer relay, total relay adhesive/disconnection accelerating circuit, transfer relay control circuit, bistable flip-flop circuit, filtering sample circuit and isolates change-over circuit; Described outer electrical input is located on total relay and the filtering sample circuit; The output of total relay is connected with the input of transfer relay, and the output of transfer relay is connected with the calibrating station; The input of bistable flip-flop circuit is connected with the output of isolating change-over circuit with micro-control unit, the output of bistable flip-flop circuit is connected with the input of total relay adhesive/disconnection accelerating circuit, and the output of total relay adhesive/disconnection accelerating circuit is connected with the input of total relay; The input of described transfer relay control circuit is connected with micro-control unit, and the output of transfer relay control circuit is connected with the input of transfer relay; The output of described filtering sample circuit is connected with the input of isolating change-over circuit.
2. the electric energy meter electric-control system on the inspection table platform automatically that is applied to according to claim 1, it is characterized in that: the output of described bistable flip-flop circuit is connected with state-feedback circuit, the feedback signal of micro-control unit accepting state feedback circuit.
3. one kind is applied to the electric energy meter electric-control method on the inspection table platform automatically, and its feature may further comprise the steps:
1) PC control micro-control unit sends the relay switching signal by the transfer relay control circuit to transfer relay, to adjust the connected mode of electric energy meter to be checked;
2) PC control micro-control unit sends the signal of telecommunication to total relay, makes total relay closes by bistable flip-flop circuit and total relay adhesive/disconnection accelerating circuit;
3) the filtering sample circuit carries out the sampling of not timing to dispatch from foreign news agency, when occurring because of the different short circuit overcurrents that cause of electric energy meter access way, the filtering sample circuit sends overload signal accurately by isolating change-over circuit to the bistable flip-flop circuit, the bistable flip-flop circuit is changed after receiving signal and is exported to total relay adhesive/disconnection accelerating circuit, and by total relay adhesive/disconnection accelerating circuit total relay is disconnected.
4. the electric energy meter electric-control method on the inspection table platform automatically that is applied to according to claim 3, it is characterized in that: the bistable flip-flop circuit after receiving signal simultaneously by state-feedback circuit with total relay status signal feedback in micro-control unit, micro-control unit returns total relay status signal on the PC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010229379 CN101938122B (en) | 2010-07-16 | 2010-07-16 | Electric control system and method applied to automatic meter verification table of electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010229379 CN101938122B (en) | 2010-07-16 | 2010-07-16 | Electric control system and method applied to automatic meter verification table of electric energy meter |
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| CN101938122A true CN101938122A (en) | 2011-01-05 |
| CN101938122B CN101938122B (en) | 2013-07-31 |
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| CN 201010229379 Active CN101938122B (en) | 2010-07-16 | 2010-07-16 | Electric control system and method applied to automatic meter verification table of electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197591A (en) * | 2013-04-03 | 2013-07-10 | 天津长荣印刷设备股份有限公司 | Self-checking circuit of preventing misoperation of wiring and working method thereof |
| WO2014107865A1 (en) * | 2013-01-10 | 2014-07-17 | 江苏省电力公司电力科学研究院 | Measurement device and measurement method compatible with electric energy meter and electricity consumption information collection terminal |
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| EP0606284B1 (en) * | 1991-09-30 | 1996-02-07 | Raychem Limited | Protection device for signal and power carrying line |
| CN201188128Y (en) * | 2007-10-29 | 2009-01-28 | 哈尔滨电工仪表研究所 | Automatization system for debugging and checking electronic type electric energy meter |
| CN101556324A (en) * | 2009-05-12 | 2009-10-14 | 深圳市科陆电子科技股份有限公司 | Pressure test device and method thereof for multi-epitope electric energy meter |
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2010
- 2010-07-16 CN CN 201010229379 patent/CN101938122B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606284B1 (en) * | 1991-09-30 | 1996-02-07 | Raychem Limited | Protection device for signal and power carrying line |
| CN201188128Y (en) * | 2007-10-29 | 2009-01-28 | 哈尔滨电工仪表研究所 | Automatization system for debugging and checking electronic type electric energy meter |
| CN101556324A (en) * | 2009-05-12 | 2009-10-14 | 深圳市科陆电子科技股份有限公司 | Pressure test device and method thereof for multi-epitope electric energy meter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107865A1 (en) * | 2013-01-10 | 2014-07-17 | 江苏省电力公司电力科学研究院 | Measurement device and measurement method compatible with electric energy meter and electricity consumption information collection terminal |
| CN103197591A (en) * | 2013-04-03 | 2013-07-10 | 天津长荣印刷设备股份有限公司 | Self-checking circuit of preventing misoperation of wiring and working method thereof |
| CN103197591B (en) * | 2013-04-03 | 2015-08-19 | 天津长荣印刷设备股份有限公司 | A kind of self-checking circuit of anti-wiring maloperation and method of work thereof |
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| Publication number | Publication date |
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| CN101938122B (en) | 2013-07-31 |
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Application publication date: 20110105 Assignee: SHENZHEN HONGZHI SOFTWARE CO., LTD. Assignor: Kelu Electronic Science-Technology Co., Ltd., Shenzhen Contract record no.: 2014440020483 Denomination of invention: Electric control system and method applied to automatic meter verification table of electric energy meter Granted publication date: 20130731 License type: Exclusive License Record date: 20141230 |
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Inventor after: Zhuang Gewei Inventor after: Shen Juan Inventor after: Zhang Jingyue Inventor after: Chen Haibin Inventor after: Xiang Xuyang Inventor after: Zhang Honghong Inventor after: Liu Ningsheng Inventor before: Liu Ningsheng |
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Effective date of registration: 20170801 Address after: No. 181 East Nanjing Road, Shanghai, Huangpu District Co-patentee after: Kelu Electronic Science-Technology Co., Ltd., Shenzhen Patentee after: State Grid Shanghai Municipal Electric Power Company Address before: 518000 Nanshan District science and Technology Park, Guangdong, Southern District, building T2, building, floor, 5 Patentee before: Kelu Electronic Science-Technology Co., Ltd., Shenzhen |