CN201583648U - Clock remote timing device of electric energy meter - Google Patents
Clock remote timing device of electric energy meter Download PDFInfo
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- CN201583648U CN201583648U CN2009202767811U CN200920276781U CN201583648U CN 201583648 U CN201583648 U CN 201583648U CN 2009202767811 U CN2009202767811 U CN 2009202767811U CN 200920276781 U CN200920276781 U CN 200920276781U CN 201583648 U CN201583648 U CN 201583648U
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- 238000004891 communication Methods 0.000 claims abstract description 40
- 238000012937 correction Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a clock remote timing device of an electric energy meter, comprising a storage module, a power supply management module and a resetting circuit which are connected with a main control circuit, and also comprising a clock circuit, a local communication interface and a remote communication interface which are connected with the main control circuit, wherein the remote communication interface is connected with a main station control platform by a GPRS receiving and transmitting module in a wireless manner; the clock circuit provides clock information for the main control circuit, the local communication interface carries out local communication with the electrical energy meter, and the remote communication interface carries out communication with the GPRS receiving and transmitting module; and the GPRS receiving and transmitting module adopts a GPRS wireless communication mode to report information to the main station control platform or transmit instructions to the main control circuit by the remote communication interface. The clock remote timing device utilizes a remote wireless GPRS technology to lead the clock timing and meter reading of the electric energy meter to be more convenient and automatic, thus solving the problem that the original timing can be carried out by needing to carry more equipment to a site, and improving the automatic management level of a power grid.
Description
Technical field:
The utility model relates to the measurement of electric system electric variable, particularly the long-range correction device of electric energy meter.
Background technology:
Along with increasing sharply of high development of social economy and electricity needs, multiple electricity prices such as point, peak, flat, paddy have begun to implement in full as a kind of control measures of electric load.The application of multi-rate meter also thereupon more and more widely, but present electric energy meter all has clock jitter, and As time goes on, error is increasing, and the deviation of each electric energy meter also has nothing in common with each other, if untimely is like this calibrated, just make each tariff period energy data out of true of each electric energy meter statistics, and it is also asynchronous with the data of other electric energy meter, carrying out at power department like this can producing a lot of inaccurate factors in the statisticss such as transmission line of electricity bus balanced ratio, line loss per unit.So the accuracy of electric energy clock is related to management and the examination of power department to electric energy, more involves the economic interests between user and enterprise and the enterprise.Therefore the clock accuracy that improves electric energy meter becomes our task of top priority
The utility model content:
Technical problem to be solved in the utility model provides a kind of clock of power meter long-range correction device at above deficiency exactly, during by the remote server school and this locality self clock automatic correcting time dual mode, guaranteed the accuracy of clock of power meter, also increased the function of remote automatic meter reading simultaneously, promptly solved manual metering time-consuming, the effort problem.
Technical solution adopted in the utility model is:
The long-range correction device of a kind of clock of power meter, include the memory module that is connected with governor circuit, power management module, reset circuit, also comprise with governor circuit and be connected clock circuit, local communication interface, remote communication interface, remote communication interface is by GPRS reception and sending module and main website control platform wireless connections, clock circuit, local communication interface, remote communication interface is respectively governor circuit clock information is provided, carry out local communication with electric energy meter and receive with GPRS and sending module communicates, the GPRS mould receives and sending module adopts the GPRS communication to instruct to governor circuit reception and registration to main website control platform reporting information or by remote communication interface.
Governor circuit also is connected with indicator light circuit, indication power supply, communication, fault and GPRS online information.
Governor circuit includes main control chip U1, main control chip U1 adopts W77E58 as microcontroller, its inner integrated Flash memory under program of 32KB, the RAM of 256B and the external RAM of 1K, has low power mode of operation, main is that it has the dual serial interface, has satisfied the communication between GPRS reception and sending module and the local electric energy meter simultaneously.
Clock circuit includes high precision clock chip U7, clock chip U7 adopts SD2300CPI, its inner embedding has 32.768K crystal oscillator and 3.6V button cell and stores the SRAM that data are used, and clock accuracy is ± 5ppm (under 25 ± 1 ℃) that promptly year error was less than 2.5 minutes.
Reset circuit includes the chip U8 that resets, the DS1232LPS-2 chip that the chip U8 that resets adopts DALLAS to produce, and power on and off resets and supports external key to reset and watchdog reset, has improved operational reliability greatly.
The beneficial effect that the utility model can reach is:
When 1, the utility model is by the remote server school and local self clock automatic correcting time dual mode, guaranteed the accuracy of clock of power meter, the accuracy of segment data when having guaranteed electric energy meter.
2, the utility model has increased the function of remote concentrated ammeter reading simultaneously, human and material resources have promptly been saved, also improved simultaneously the automatization level of system, the more important thing is the rationality and the intelligent level that have improved State Grid's energy control in some respects and used, accelerated the pace of construction of national intelligent grid.
Description of drawings:
Fig. 1 is a logical organization block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment:
The utility model will be further described below in conjunction with accompanying drawing:
As shown in Figure 1 and Figure 2, the long-range correction device of this clock of power meter, by the memory module 2 that is connected with governor circuit 1, power management module 3, reset circuit 4, local communication interface 5, indicator light circuit 6, clock circuit 7 and remote communication interface 8, remote communication interface 8 receives by GPRS and sending module 9 and main website control platform 10 wireless connections.Wherein: governor circuit 1 includes main control chip U1, main control chip U1 adopts W77E58 as microcontroller, its inner integrated Flash memory under program of 32KB, the RAM of 256B and the external RAM of 1K, has low power mode of operation, main is that it has the dual serial interface, has satisfied the communication between GPRS reception and sending module 9 and the local electric energy meter simultaneously.Clock circuit 7 includes high precision clock chip U7, clock chip U7 adopts SD2300CPI, its inner embedding has 32.768K crystal oscillator and 3.6V button cell and stores the SRAM that data are used, clock accuracy is ± 5ppm (under 25 ± 1 ℃), promptly year error was less than 2.5 minutes, the P15 of clock chip U7, P20 pin and P13, P21 pin are connected with P14, the P15 pin of main control chip U1 respectively, and U1 provides temporal information for main control chip, and are provided with and change according to the order of main control chip U1.Reset circuit 4 includes the chip U8 that resets, the DS1232LPS-2 chip that the chip U8 that resets adopts DALLAS to produce, P5, the P7 pin of chip U8 of resetting is connected with P9, the P35 pin of main control chip U1 respectively, the realization power on and off resets and supports external key to reset and watchdog reset, has improved operational reliability greatly.Memory module 2 adopts the FLASH storer AT45DB041D with 512KBYTE, and the P1 of memory module 2, P2, P4, P8 pin are connected with P35, P34, P33, the P36 pin of main control chip U1 respectively, store clock parameter information and electric energy meter information.Indicator light circuit 6 comprises P39, P38, LED4, the LED3 of P37 pin, the LED2 that is connected main control chip U1, wherein: LED2 communication pilot lamp, LED3 malfunction indicator lamp, the online pilot lamp of LED3 GPRS, LED1 is connected between the high-low level of power management module 3, is power light.Local communication interface 5 and remote communication interface 8 all adopt the MAX485 chip, and wherein: telecommunication chip U10 receives with GPRS by interface P4 and is connected with sending module 9, and local communication chip U9 is connected with electric energy meter by interface P2.
When main website control platform 10 transmitting order to lower levels, this device receives level data by interface P4, be converted to Transistor-Transistor Logic level by telecommunication chip U10 again and send to main control chip U1, whether the order data that main control chip U1 verification receives orders during for the school, if order during the school, just propose temporal information according to communication protocol from this order data, main control chip U1 and clock chip U7 pass through I then
2The C interface communication, the system clock of refresh clock chip U7, process when starting the broadcasting school is then upgraded every electric energy meter time by local communication chip U9 in order; If main control chip U1 receives is that other parameter is provided with order, and main control chip U1 just stores the interface modes of supplemental characteristic by SPI in the memory module 2 into.During operate as normal, interval time and checking meter interval time when whether the cycle criterion of this device has arrived the school, if interval time when having arrived the school, process when just starting the school, reading the clock of every electric energy meter compares with the clock of self, if difference greater than 5 seconds, to main website control platform 10, informs that main website control platform 10 these clock of power meter are overproof with regard to the overproof incident of last time signal clock; If setup time to the interlude of checking meter just start the process of checking meter.Copy and accept electric energy meter electric energy data by local communication interface 5 in order, copy and accept the back that finishes and issue main website control platform 10 by reporting automatically.In a word, this device utilizes long distance wireless GPRS technology, when making the clock of power meter school and check meter more facility and robotization, solved original needs and gone on-the-spot problem could the school time with a lot of equipment, improved the automatic management level of electrical network, responded and strengthened the call that national intelligent grid is built.
Claims (5)
1. long-range correction device of clock of power meter, include the memory module that is connected with governor circuit, power management module, reset circuit, it is characterized in that: also comprise with governor circuit being connected clock circuit, local communication interface, remote communication interface, remote communication interface is by GPRS reception and sending module and main website control platform wireless connections, clock circuit, local communication interface, remote communication interface is respectively governor circuit clock information is provided, carry out local communication with electric energy meter and receive with GPRS and sending module communicates, the GPRS mould receives and sending module adopts the GPRS communication to instruct to governor circuit reception and registration to main website control platform reporting information or by remote communication interface.
2. the long-range correction device of clock of power meter as claimed in claim 1, it is characterized in that: governor circuit also is connected with indicator light circuit, indication power supply, communication, fault and GPRS online information.
3. the long-range correction device of clock of power meter as claimed in claim 1 or 2 is characterized in that: governor circuit includes main control chip (U1), and main control chip (U1) adopts W77E58 as microcontroller.
4. the long-range correction device of clock of power meter as claimed in claim 1 or 2 is characterized in that: clock circuit includes high precision clock chip (U7), and clock chip (U7) adopts SD2300CPI.
5. the long-range correction device of clock of power meter as claimed in claim 1 or 2 is characterized in that: reset circuit includes the chip that resets (U8), and the chip that resets (U8) adopts the DS1232LPS-2 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202767811U CN201583648U (en) | 2009-12-10 | 2009-12-10 | Clock remote timing device of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202767811U CN201583648U (en) | 2009-12-10 | 2009-12-10 | Clock remote timing device of electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583648U true CN201583648U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202767811U Expired - Fee Related CN201583648U (en) | 2009-12-10 | 2009-12-10 | Clock remote timing device of electric energy meter |
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| Country | Link |
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| CN (1) | CN201583648U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044912A (en) * | 2010-11-25 | 2011-05-04 | 深圳市科陆电子科技股份有限公司 | Method for concurrently surveying terminal time in batch |
| CN102636692A (en) * | 2012-04-13 | 2012-08-15 | 上海大亚科技有限公司 | Method for acquiring real-time time of data acquisition module of an intelligent electric meter based on master station time |
| CN106054106A (en) * | 2016-05-25 | 2016-10-26 | 宁波三星医疗电气股份有限公司 | Watt-hour meter clock abnormality automatic detection method based on power line carrier |
| CN106940434A (en) * | 2017-04-05 | 2017-07-11 | 贵州电网有限责任公司电力科学研究院 | A kind of long-range calibrating installation of electric energy meter platform and automatic calibrating method |
-
2009
- 2009-12-10 CN CN2009202767811U patent/CN201583648U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044912A (en) * | 2010-11-25 | 2011-05-04 | 深圳市科陆电子科技股份有限公司 | Method for concurrently surveying terminal time in batch |
| CN102044912B (en) * | 2010-11-25 | 2014-03-12 | 深圳市科陆电子科技股份有限公司 | Method for concurrently surveying terminal time in batch |
| CN102636692A (en) * | 2012-04-13 | 2012-08-15 | 上海大亚科技有限公司 | Method for acquiring real-time time of data acquisition module of an intelligent electric meter based on master station time |
| CN106054106A (en) * | 2016-05-25 | 2016-10-26 | 宁波三星医疗电气股份有限公司 | Watt-hour meter clock abnormality automatic detection method based on power line carrier |
| CN106054106B (en) * | 2016-05-25 | 2018-08-31 | 宁波三星医疗电气股份有限公司 | A kind of clock of power meter exception automatic testing method based on power line carrier |
| CN106940434A (en) * | 2017-04-05 | 2017-07-11 | 贵州电网有限责任公司电力科学研究院 | A kind of long-range calibrating installation of electric energy meter platform and automatic calibrating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU HUALI INFORMATION TECHNOLOGY CO., LTD. H Free format text: FORMER OWNER: ZHENGZHOU HUALI INFORMATION TECHNOLOGY CO., LTD. Effective date: 20131029 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY BRANCH Effective date: 20131029 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 450006 ZHENGZHOU, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131029 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Zhengzhou Huali Information Technology Co., Ltd. Patentee after: Henan Electric Power Company Zhengzhou Power Supply Branch Address before: 450006 Huaihe Road, Henan, China, No. 9, No. Patentee before: Henan Electric Power Company Zhengzhou Power Supply Branch Patentee before: Zhengzhou Huali Information Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20161210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |