CN205067714U - Single -phase electric energy meter calibrating installation and single -phase electric energy meter credible test platform that resets - Google Patents
Single -phase electric energy meter calibrating installation and single -phase electric energy meter credible test platform that resets Download PDFInfo
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- CN205067714U CN205067714U CN201520476386.3U CN201520476386U CN205067714U CN 205067714 U CN205067714 U CN 205067714U CN 201520476386 U CN201520476386 U CN 201520476386U CN 205067714 U CN205067714 U CN 205067714U
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Abstract
Single -phase electric energy meter calibrating installation and single -phase electric energy meter credible test platform that resets, single -phase electric energy meter calibrating installation includes single -phase electric energy meter calibration equipment, still including being used for the resetting means according to input/output reset signal. The utility model discloses having add the generating device that resets on ordinary single -phase electric energy meter calibration equipment basis, having expanded current single -phase electric energy meter calibration equipment's function, can control single -phase electric energy meter software and reset, whether the data storage condition of the electric energy meter after can also reseing through credible test platform inspection, metering error, communication function, calibration equipment 0 etc. Are unusual to comprehensive evaluation of is carried out to credibility to the electric energy meter.
Description
Technical field
The utility model relates to a kind of single-phase electric energy meter calibrating installation, also relates to a kind of single-phase electric energy meter and to reset credible test platform.
Background technology
Electric energy meter is when practical application, and in electrical network, magnetic interference, radiation interference all may cause electric energy meter metering fault, and the data affecting electric energy meter store, and these faults can affect the accuracy of electric energy meter metering, cause damage to power supply enterprise or user.For addressing these problems, electric energy meter manufacturer is provided with software reset's function to electric energy meter, and namely the automatic Signal analysis failure condition according to input starts the reset function of electric energy meter.But electric energy meter calibrating apparatus such as the single-phase electric energy meter calibration equipment used at present can only be tested conventional func such as the error in dippings of electric energy meter according to functional specification, the credibility of electric energy meter its software reset under abnormal conditions interference can not be furtherd investigate.
Utility model content
First technical matters to be solved in the utility model is to provide a kind of single-phase electric energy meter calibration equipment with exceptional reset simulation test function.
The utility model solves its technical matters by following technical solution: a kind of single-phase electric energy meter calibrating installation with exceptional reset simulation test function, comprise single-phase electric energy meter calibration equipment, it is characterized in that, also comprise for the reset generating means according to input and output reset signal.
The utility model increases reset generating means on the basis of existing single-phase electric energy meter calibration equipment, composition single-phase electric energy meter calibrating installation, by reset generating means, reset signal is exported to single-phase electric energy meter, electric energy meter software is resetted, extend the function of existing single-phase electric energy meter calibration equipment.
Described single-phase electric energy meter calibration equipment is configured with the meter hanging frame for installing single-phase electric energy meter, described meter hanging frame is distributed with several epi-positions, and epi-position place is provided with the gauge stand for installing single-phase electric energy meter;
Reset generating means is monolithically integrated on one piece of circuit board, form reset working plate, reset working plate and described epi-position one_to_one corresponding, be arranged on the back side of described epi-position, the front of described epi-position is provided with reset test interface, described reset test interface comprises the artificial line interface for being connected to the MCU resetting pin of the single-phase electric energy meter be arranged on corresponding gauge stand, described artificial line interface is connected with the reset signal output terminal of the reset working plate at the corresponding epi-position back side, to export reset signal to single-phase electric energy meter.
Reset generating means adopts modular design, and one piece of corresponding reset working plate of electric energy meter, is conducive to the expansion of epi-position, is also conducive to maintenance in the future.
Described reset test interface also comprise for block connected IIC interface in the single-phase electric energy meter be arranged on corresponding gauge stand, described IIC interface is connected with the digital independent end of the reset working plate at the corresponding epi-position back side, to read the interior card data of single-phase electric energy meter.
Described reset test interface also comprises the communication/signaling interface for being connected to 458 interfaces of the single-phase electric energy meter be arranged on corresponding gauge stand, described communication/signaling interface is connected with the signal of communication end of the reset working plate at the corresponding epi-position back side, so that the electricity of reading power meters, clock data.
The power input of described reset generating means is connected with described single-phase electric energy meter calibration equipment.
Described reset working plate comprises communication interface, main control chip, buffer circuit, signal processing circuit, described communication interface is connected with described main control chip, described main control chip is connected with described signal processing circuit by buffer circuit, and described reset signal output terminal, digital independent end are connected with described signal processing circuit with described signal of communication end.Reset working plate is directly connected with the inside chip of single-phase electric energy meter, and buffer circuit is used for isolating exterior power supply signal to the impact of electric energy meter inside chip.
Second technical matters of the present utility model solves by following technical solution: a kind of single-phase electric energy meter resets credible test platform, comprise single-phase electric energy meter calibration equipment, it is characterized in that, also comprise computing machine and described reset generating means, described computing machine is connected with described single-phase electric energy meter calibration equipment with described reset generating means by RS232 bus.
Relative to prior art, the utility model has following beneficial effect: the utility model has set up reset generating means on common single-phase electric energy meter calibration equipment basis, extend the function of existing single-phase electric energy meter calibration equipment, single-phase electric energy meter software reset can be controlled, whether the data storage condition, error in dipping, communication function, clock signal etc. of the electric energy meter after can also being resetted by credible test platform inspection be abnormal, thus carry out comprehensive evaluation to the credibility of electric energy meter.
Accompanying drawing explanation
Fig. 1 is that the utility model single-phase electric energy meter resets the structural representation of credible test platform;
Fig. 2 is the enlarged drawing of an epi-position in Fig. 1 on meter hanging frame;
Fig. 3 is that the utility model single-phase electric energy meter resets the schematic block circuit diagram of credible test platform.
Embodiment
Below by embodiment, the utility model is described in further detail:
The utility model has the single-phase electric energy meter calibrating installation of exceptional reset simulation test function mainly on the basis of single-phase electric energy meter calibration equipment, set up reset generating means, when not affecting any function of single-phase electric energy meter pick-up unit, for it extends exceptional reset simulation test function.The utility model reset generating means can export a reset signal to the MCU resetting pin of electric energy meter under control of the computer, after electric energy meter receives this reset signal, and can mandatory administration chip or computation chip reset.The utility model is again by storage data and the signal output of electric energy meter after computing machine and single-phase electric energy meter calibration equipment collection reset, before and after checking resets, whether the data storage condition, clock, measuring accuracy etc. of electric energy meter be abnormal, evaluates the credibility of electric energy meter software.
Above-mentioned single-phase electric energy meter calibration equipment, reset generating means and computing machine constitute single-phase electric energy meter of the present utility model and to reset credible test platform.
As shown in Figure 1,3, single-phase electric energy meter calibrating installation of the present utility model comprises single-phase electric energy meter calibration equipment and reset generating means.
Single-phase electric energy meter calibration equipment mainly comprises display, overall control center 1, meter hanging frame 2, keyboard, error processor, and display, keyboard, error processor are connected with overall control center 1 respectively.The power input of reset generating means is connected with overall control center 1, obtains working power.Single-phase electric energy meter calibration equipment of the present utility model adopts split-type design, is mainly divided into meter hanging frame 2 and overall control center 1 two parts, as shown in Figure 1.
Be provided with programmable power supply in overall control center 1, be also provided with single-phase standard electric energy meter, high precision clock validating instrument equal error calibration equipment, the measuring accuracy of electric energy meter, clocking error and electric quantity data etc. can be detected.
Meter hanging frame 2 is provided with arranged in column epi-position in a row, as shown in Figure 1, epi-position place is provided with gauge stand 21.Error processor 22 and epi-position one_to_one corresponding, be arranged on the upper area of each epi-position.Error processor is mainly used in the error in dipping calculating electric energy meter.Reset generating means is monolithically integrated on one piece of circuit board, forms reset working plate, reset working plate also with epi-position one_to_one corresponding, be arranged on the back side of epi-position.The front of epi-position is provided with reset test interface.
As shown in Figure 3, reset generating means comprises communication interface, main control chip, buffer circuit, signal processing circuit to the theory diagram of reset generating means, and communication interface is connected with main control chip, and main control chip is connected with signal processing circuit by buffer circuit.Reset generating means external interface has two parts, the RS232 interface of the first and compunication; Its two be to electric energy meter control and the interface communicated, respectively: Energy control interface, electric meter signal Sampling Interface and with electric energy meter RS485 communication interface.
Signal processing circuit has reset signal output terminal, digital independent end and signal of communication end, reset signal output terminal, digital independent end and signal of communication end respectively with artificial line interface 12, the IIC interface 11 of reset test interface, communicate/signaling interface 10 is connected.Artificial line interface 12 is for being connected to the MCU resetting pin of the single-phase electric energy meter be arranged on corresponding gauge stand, IIC interface 11 for block in the single-phase electric energy meter be arranged on corresponding gauge stand be connected, communication/signaling interface 10 is for being connected to the communication connection post 7 be arranged on corresponding gauge stand, and communication connection post 7 is connected with 485 interfaces of electric energy meter.Electric energy meter passes through communication connection post 7 Signal transmissions to communication/signaling interface 10, then reset generating means is input to, reset generating means is connected with computing machine by RS232 serial ports, signal is outputted to computing machine, to carry out Treatment Analysis to the received signal by the testing software in computing machine.
As shown in Figure 2, on gauge stand, 3,4 is voltage, the electric current access binding post of electric energy meter, and 5,6,7 be 6 auxiliary terminal binding posts of electric energy meter, and wherein 5 be pulse signal binding post, 6 be multifunctional signal binding post, 7 is communication connection post.Pulse signal binding post 5 is for electric energy meter measuring accuracy error testing, be connected with signaling interface 9, single-phase electric energy meter calibration equipment is sampled by signaling interface 9 pulse signal of electric energy meter, then contrast with the standard single-phase electric energy meter of inside, the measuring accuracy error of single-phase electric energy meter after being resetted by error comparator software for calculation, and judge whether it meets standard-required.Multifunctional signal binding post 6 is connected with communication interface 8, single-phase electric energy meter calibration equipment is sampled by communication interface 8 pps pulse per second signal of electric energy meter, contrasted by high precision clock validating instrument in the frequency of this pulse per second (PPS) and single-phase electric energy meter calibration equipment, whether checking clocking error precision meets standard-required.
Computing machine is connected with the communication interface of reset working plate by RS232 bus, the level that computing machine can control monolithic or polylith reset working plate exports, namely control the reset signal that reset working plate exports, also read card data in single-phase electric energy meter by reset working plate.The buffer circuit of reset working plate is used for isolating exterior power supply signal, reduces external power source signal to the impact of electric energy meter inside chip as far as possible.Computing machine is also connected by the overall control center of RS232 bus with single-phase electric energy meter calibration equipment, controls it and tests the error in dipping, clock signal etc. of the electric energy meter after reset.
Computing machine exports the level signal of different potentials to artificial line interface 12 by reset working plate, after the MCU of electric energy meter receives reset signal, pressure electric energy meter resets, computing machine by reset generating means with communicate/signal 10 obtains the electricity of electric energy meter, clock data, card data in electric energy meter are obtained by reset generating means and IIC interface 11, the overall control center of single-phase electric energy meter calibration equipment is by signaling interface 9, communication interface 8 obtains metering signal and the clock signal of electric energy meter respectively, data storage condition after mutual authentication electric energy meter resets, clock, whether measuring accuracies etc. there is exception, when all test results meet Standard phenomenon without exception, judge that the credibility of this electric energy meter software is qualified.
Claims (6)
1. there is a single-phase electric energy meter calibrating installation for exceptional reset simulation test function, comprise single-phase electric energy meter calibration equipment, it is characterized in that, also comprise for the resetting means according to input and output reset signal;
Described single-phase electric energy meter calibration equipment is configured with the meter hanging frame for installing single-phase electric energy meter, described meter hanging frame is distributed with several epi-positions, and epi-position place is provided with the gauge stand for installing single-phase electric energy meter;
Reset generating means is monolithically integrated on one piece of circuit board, form reset working plate, reset working plate and described epi-position one_to_one corresponding, be arranged on the back side of described epi-position, the front of described epi-position is provided with reset test interface, described reset test interface comprises the artificial line interface for being connected to the MCU resetting pin of the single-phase electric energy meter be arranged on corresponding gauge stand, described artificial line interface is connected with the reset signal output terminal of the reset working plate at the corresponding epi-position back side, to export reset signal to single-phase electric energy meter.
2. single-phase electric energy meter calibrating installation according to claim 1, it is characterized in that, described reset test interface also comprise for block connected IIC interface in the single-phase electric energy meter be arranged on corresponding gauge stand, described IIC interface is connected with the digital independent end of the reset working plate at the corresponding epi-position back side.
3. single-phase electric energy meter calibrating installation according to claim 2, it is characterized in that, described reset test interface also comprises the communication/signaling interface for being connected to 458 interfaces of the single-phase electric energy meter be arranged on corresponding gauge stand, described communication/signaling interface is connected with the signal of communication end of the reset working plate at the corresponding epi-position back side, so that the electricity of reading power meters, clock data.
4. single-phase electric energy meter calibrating installation according to claim 3, is characterized in that, the power input of described reset generating means is connected with described single-phase electric energy meter calibration equipment.
5. single-phase electric energy meter calibrating installation according to claim 4, it is characterized in that, described reset working plate comprises communication interface, main control chip, buffer circuit, signal processing circuit, described communication interface is connected with described main control chip, described main control chip is connected with described signal processing circuit by buffer circuit, and described reset signal output terminal, digital independent end are connected with described signal processing circuit with described signal of communication end.
6. the single-phase electric energy meter comprising the generating means that to reset described in any one of claim 1 ~ 5 resets credible test platform, comprise single-phase electric energy meter calibration equipment, it is characterized in that, also comprise computing machine and described reset generating means, described computing machine is connected with described single-phase electric energy meter calibration equipment with described reset generating means by RS232 bus.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN108957385A (en) * | 2018-08-15 | 2018-12-07 | 广东电网有限责任公司 | A kind of electric energy measuring equipment automatic calibration line exception epitope confirmation method and device |
| CN109344934A (en) * | 2018-12-12 | 2019-02-15 | 威胜集团有限公司 | Pre-payment radio-frequency card and electric energy meter data exchange process detection device and detection method |
| CN113050021A (en) * | 2021-06-01 | 2021-06-29 | 杭州炬华科技股份有限公司 | System and method for calibrating metering error and daily timing error based on same LED lamp |
| CN114152812A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Error self-checking three-phase electric energy meter and measuring system and method thereof |
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2015
- 2015-07-06 CN CN201520476386.3U patent/CN205067714U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN108445436B (en) * | 2018-03-01 | 2020-04-10 | 宁波迦南智能电气股份有限公司 | Electric energy meter with double cores for mutual detection of running states |
| CN108957385A (en) * | 2018-08-15 | 2018-12-07 | 广东电网有限责任公司 | A kind of electric energy measuring equipment automatic calibration line exception epitope confirmation method and device |
| CN108957385B (en) * | 2018-08-15 | 2020-07-03 | 广东电网有限责任公司 | Method and device for confirming abnormal epitope of automatic verification line of electric energy metering equipment |
| CN109344934A (en) * | 2018-12-12 | 2019-02-15 | 威胜集团有限公司 | Pre-payment radio-frequency card and electric energy meter data exchange process detection device and detection method |
| CN114152812A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Error self-checking three-phase electric energy meter and measuring system and method thereof |
| CN114152812B (en) * | 2020-09-08 | 2024-04-26 | 武汉国测数据技术有限公司 | Error self-checking three-phase electric energy meter and measuring system and method thereof |
| CN113050021A (en) * | 2021-06-01 | 2021-06-29 | 杭州炬华科技股份有限公司 | System and method for calibrating metering error and daily timing error based on same LED lamp |
| CN113050021B (en) * | 2021-06-01 | 2021-08-17 | 杭州炬华科技股份有限公司 | System and method for calibrating metering error and daily timing error based on same LED lamp |
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