CN202904000U - RTC clock verification apparatus for electric energy meters - Google Patents
RTC clock verification apparatus for electric energy meters Download PDFInfo
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- CN202904000U CN202904000U CN 201220554489 CN201220554489U CN202904000U CN 202904000 U CN202904000 U CN 202904000U CN 201220554489 CN201220554489 CN 201220554489 CN 201220554489 U CN201220554489 U CN 201220554489U CN 202904000 U CN202904000 U CN 202904000U
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- electric energy
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- energy meter
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Abstract
The utility model discloses an RTC clock verification apparatus for electric energy meters, comprising a verification meter bench body, a multichannel clock tester and a PC machine, wherein the verification meter bench body provides a communication interface connected with the multichannel clock tester for various electric energy meters on the verification meter bench body, and simultaneously provides communication interfaces connected with the PC machine for various electric energy meters, the multichannel clock tester is used for measuring the clock data and the environment temperature data of the electric energy meters on the verification meter bench body and transmits the measuring result to the PC machine through a communication cable, and the PC machine verifies or calibrates the electric energy meters on the verification meter bench body through the communication cable. The RTC clock verification apparatus for electric energy meters can simultaneously and accurately measure the RTC clocks of a plurality of electric energy meters, and through employing the multichannel clock tester and the PC machine, can greatly reduce the manpower and material cost, and also greatly increases the verification and calibration efficiency of the electric energy meters, thereby excellently resolving the precision and efficiency problems of the RTC clocks of the electric energy meters in the process of verification and calibration in batches.
Description
Technical field
The utility model relates to a kind of clock check device, particularly a kind of electric energy meter RTC clock check device.
Background technology
The RTC clock accuracy of electronic electric energy meter plays an important role to functions such as electric energy meter chargings, press the regulation test of GB/T 15284-2002, the error of time of day of 23 ℃ of lower electric energy meters of normal temperature must not surpass 0.5 second every day (5.7PPM), and environment temperature (25 ~ 60 ℃) should not surpass 1 second every day (11.4PPM) to the impact of the error of time of day of electric energy meter.Therefore, when electric energy meter is produced in batches, we need a kind of device that can carry out simultaneously high-precision calibration, check to the RTC clock of polylith electric energy meter, it both can be used to calibrate accurately simultaneously the RTC clocking error of polylith electric energy meter, also can be used for checking accurately simultaneously the RTC clocking error of polylith electric energy meter.
The utility model content
The purpose of this utility model is to provide a kind of clock check device that can carry out simultaneously high precision inspection and calibration to the RTC clock of polylith electric energy meter.
This electric energy meter RTC clock check device that the utility model provides, comprise the checklist stage body, multipath clock tester and PC, the checklist stage body links to each other with multipath clock tester and PC respectively by telecommunication cable, the communication interface that links to each other with the multipath clock tester and the communication interface that links to each other with PC are provided for simultaneously each electric energy meter thereon, the multipath clock tester is measured clock data and the ambient temperature data of electric energy meter on the checklist stage body by telecommunication cable, and by telecommunication cable measurement result is reached PC, PC analytical error data, test table, by telecommunication circuit the electric energy meter on the checklist stage body is carried out calibration again.
Described multipath clock tester is used for simultaneously the clock signal of 24 electric energy meters being measured with the precision of 0.1PPM, and measurement result is transferred to PC by RS485 or RS232.
The utility model can be simultaneously carries out high-precision measurement to the RTC clock of polylith electric energy meter, for check and the calibration operation that carries out in batches electric energy meter provides strong equipment guarantee, meanwhile, because the participation of multipath clock tester and PC being arranged, not only significantly reduce the manpower and materials cost, also significantly improve test of kilo watthour meter and calibration efficiency, thereby solved well precision problem and the efficiency of checking in batches and calibrating electric energy meter RTC clock.
Description of drawings
Fig. 1 is the functional block diagram of implementation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises the checklist stage body, multipath clock tester and PC, the checklist stage body links to each other with multipath clock tester and PC respectively by telecommunication cable, the communication interface that links to each other with the multipath clock tester is provided for simultaneously each electric energy meter thereon, and provide the communication interface that links to each other with PC for these electric energy meters, the multipath clock tester is measured clock data and the ambient temperature data of electric energy meter on the checklist stage body by telecommunication cable, and by telecommunication cable measurement result is reached PC, PC analytical error data, test table, by telecommunication circuit the electric energy meter on the checklist stage body is carried out calibration again.
The checklist stage body is the suspension carrier of each electric energy meter, and provides corresponding communication interface with duplex tester and PC for it.
The multipath clock tester is used for simultaneously the clock signal of 24 electric energy meters being measured accurately with the precision of 0.1PPM, and measurement result is transferred to PC by RS485 or RS232, also be used for simultaneously measures ambient temperature, for the temperature sensor of each electric energy meter of Accurate Calibration provides foundation.The multipath clock tester is surveying instrument of the present utility model, its double-core, multipath clock tester MTC-I based on High Accuracy Constant Temperature crystal, high speed fpga chip and 16 MCU designs of high-performance for developing voluntarily, producing.
PC is used for the calibration of electric energy meter or tests table; When calibration, from the multipath clock tester, read RTC clocking error data and the ambient temperature data of each electric energy meter, calculate penalty coefficient by daemon software again, then write in the corresponding electric energy meter by RS485, realize the calibration function to each electric energy meter RTC clocking error; When testing table, only read the RTC clocking error data of each electric energy meter, analyze this data by daemon software, realize the checking function to each electric energy meter RTC clocking error.PC is computing, the control center of this device.
During work, PC sets first the duty of checklist stage body by RS232, then sets the running parameter of multipath clock tester by RS485 or RS232; Then electric energy meter to be verified is contained on the checklist stage body, connects RS485 line that each electric energy meter communicates by letter with PC and to the clock cable of multipath clock tester transmission RTC clock signal.PC daemon software control checklist stage body powers on, and the multipath clock tester is measured the RTC clock of each electric energy meter, and PC is different according to user's request, implements two kinds of different operation controls of inspection table and calibration.When calibration, from the multipath clock tester, read RTC clocking error and the environment temperature of each electric energy meter, calculate penalty coefficient by daemon software, then write in the corresponding electric energy meter by RS485, realize the calibration function to each electric energy meter RTC clocking error; When testing table, only read the RTC clocking error of each electric energy meter, by daemon software analytical error data, realize the checking function to each electric energy meter RTC clocking error.
Claims (2)
1. electric energy meter RTC clock check device, it is characterized in that, comprise the checklist stage body, multipath clock tester and PC, the checklist stage body links to each other with multipath clock tester and PC respectively by telecommunication cable, the communication interface that links to each other with the multipath clock tester and the communication interface that links to each other with PC are provided for simultaneously each electric energy meter thereon, the multipath clock tester is measured clock data and the ambient temperature data of electric energy meter on the checklist stage body by telecommunication cable, and by telecommunication cable measurement result is reached PC, PC analytical error data, test table, by telecommunication circuit the electric energy meter on the checklist stage body is carried out calibration again.
2. electric energy meter RTC clock check device according to claim 1, it is characterized in that, described multipath clock tester is used for simultaneously the clock signal of 24 electric energy meters being measured with the precision of 0.1PPM, and measurement result is transferred to PC by RS485 or RS232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554489 CN202904000U (en) | 2012-10-26 | 2012-10-26 | RTC clock verification apparatus for electric energy meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554489 CN202904000U (en) | 2012-10-26 | 2012-10-26 | RTC clock verification apparatus for electric energy meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904000U true CN202904000U (en) | 2013-04-24 |
Family
ID=48124654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220554489 Expired - Lifetime CN202904000U (en) | 2012-10-26 | 2012-10-26 | RTC clock verification apparatus for electric energy meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904000U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499803A (en) * | 2013-09-09 | 2014-01-08 | 扬州市万泰电器厂有限公司 | Method for improving precision of built-in real-time clock of electric energy meter MCU |
| CN104483649A (en) * | 2014-11-12 | 2015-04-01 | 珠海中慧微电子有限公司 | High-precision time synchronization method and system applied to electric energy meter |
| CN106054580A (en) * | 2016-07-04 | 2016-10-26 | 华立科技股份有限公司 | Second signal software calibration method of clock chip |
| CN106199484A (en) * | 2016-06-23 | 2016-12-07 | 潍坊五洲浩特电气有限公司 | Mainboard error of time of day automatic debugging system |
| CN107907850A (en) * | 2017-11-02 | 2018-04-13 | 华立科技股份有限公司 | Three-phase electric energy meter clock alignment and error calibrating method |
| CN109738848A (en) * | 2019-02-26 | 2019-05-10 | 国网江苏省电力有限公司无锡供电分公司 | Electric energy meter fast powering-up device and detection method |
| CN112147561A (en) * | 2020-08-13 | 2020-12-29 | 国网浙江省电力有限公司营销服务中心 | Multi-core intelligent electric meter clock precision test system based on low-power-consumption Bluetooth |
-
2012
- 2012-10-26 CN CN 201220554489 patent/CN202904000U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499803A (en) * | 2013-09-09 | 2014-01-08 | 扬州市万泰电器厂有限公司 | Method for improving precision of built-in real-time clock of electric energy meter MCU |
| CN103499803B (en) * | 2013-09-09 | 2015-09-09 | 扬州万泰电子科技有限公司 | A kind of method improving precision of built-in real-time clock of electric energy meter MCU |
| CN104483649A (en) * | 2014-11-12 | 2015-04-01 | 珠海中慧微电子有限公司 | High-precision time synchronization method and system applied to electric energy meter |
| CN106199484A (en) * | 2016-06-23 | 2016-12-07 | 潍坊五洲浩特电气有限公司 | Mainboard error of time of day automatic debugging system |
| CN106054580A (en) * | 2016-07-04 | 2016-10-26 | 华立科技股份有限公司 | Second signal software calibration method of clock chip |
| CN106054580B (en) * | 2016-07-04 | 2018-04-06 | 华立科技股份有限公司 | The second signal calibration method of clock chip |
| CN107907850A (en) * | 2017-11-02 | 2018-04-13 | 华立科技股份有限公司 | Three-phase electric energy meter clock alignment and error calibrating method |
| CN109738848A (en) * | 2019-02-26 | 2019-05-10 | 国网江苏省电力有限公司无锡供电分公司 | Electric energy meter fast powering-up device and detection method |
| CN109738848B (en) * | 2019-02-26 | 2024-05-24 | 国网江苏省电力有限公司无锡供电分公司 | Rapid power-on device and detection method for electric energy meter |
| CN112147561A (en) * | 2020-08-13 | 2020-12-29 | 国网浙江省电力有限公司营销服务中心 | Multi-core intelligent electric meter clock precision test system based on low-power-consumption Bluetooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |