CN203084184U - Detection device and system - Google Patents
Detection device and system Download PDFInfo
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- CN203084184U CN203084184U CN 201220696156 CN201220696156U CN203084184U CN 203084184 U CN203084184 U CN 203084184U CN 201220696156 CN201220696156 CN 201220696156 CN 201220696156 U CN201220696156 U CN 201220696156U CN 203084184 U CN203084184 U CN 203084184U
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- 238000001514 detection method Methods 0.000 title claims abstract description 113
- 238000004891 communication Methods 0.000 claims abstract description 129
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000006870 function Effects 0.000 description 25
- 238000012360 testing method Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011990 functional testing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a detection device and a system. The detection device comprises an input port which is connected with a standard meter and used for receiving a preset pulse signal of the standard meter, a pulse converter which is connected with the input port and used for converting the preset pulse signal into an electric pulse detection signal and a light pulse detection signal, an electric output port which is connected with the pulse converter and used for sending the electric pulse detection signal, a light pulse output port which is connected with the pulse converter and used for sending the light pulse detection signal, and a communication port used for sending a communication detection signal. According to the detection device, problems that an electric meter in the prior art can not realize accurate function detection on a photoelectric sampler of an electric energy meter check meter or accurate communication function detection on 485 of the electric energy meter check meter are solved, and accurate function detection on the photoelectric sampler configured on the field electric energy meter check meter and accurate communication function detection on the 485 of the electric energy meter check meter are realized.
Description
Technical field
The utility model relates to the power equipment detection range, in particular to a kind of pick-up unit and system.
Background technology
Field electric energy table tester is on-the-spot, and to detect operating electric energy meter accuracy is that guarantee company on-the-spotly installs the electric energy meter accurate measurement, guarantees that the electricity charge correctly reclaim, safeguard the important technical that electric energy metrical is fair and just.The electric energy meter of field electric energy table tester detection at present mainly uses the mode of photoelectricity sampling to calculate the electric energy meter pulse, and uses 485 modes and installation electric energy meter to carry out communication.The sampling of assurance photoelectric sampler is accurate, operation conditions is well most important to correct detection operation electric energy meter meter error, and guarantee that 485 communications well are the important means that guarantees the electric energy meter real time data acquisition, therefore, whether photoelectricity sampling and two functions of 485 communications of detecting field electric energy table tester are qualified, are the important assurances that can the field electric energy table well move.
The main electric energy meter calibrating apparatus that uses the pin-point accuracy grade detects in the testing laboratory of field electric energy table tester, carry out according to measurement verification regulations, yet high-grade electric energy meter calibrating apparatus is mainly used in the test of metering performance, do not possess the functional test ability, therefore existing pin-point accuracy grade calibrating installation can not carry out the photoelectricity sampling of field electric energy table tester and the functional test of 485 communications, if detect this two kinds of functions, can only adopt and select the conduct of installing type electric energy meter, the as above function of test site electrical energy meter calibration instrument by test agent.
But be to use the installing type electric energy meter to exist several deficiencies:
The one, manufacturer's difference of installing type electric energy meter, material, technology and the technical scheme used are different, the signal quality of photoimpact has bigger difference, and the signal frequency of photoimpact has been reacted the measuring error of installing type electric energy meter, the installing type electric energy meter of same model or the error difference of different installing type electric energy meters, its photosignal and electric impulse signal also there are differences.This photosignal that just causes field electric energy table tester to adopt back is inaccurate.
Two are to use the installing type electric energy meter to test 485 communication functions, though whether can test 485 communications good, have no idea to detect the different traffic rates communication protocol different with test, the correctness of data copy reading in also can't guaranteeing to show.
Problem at can't accurately detect the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications in the prior art by electric energy meter does not propose effective solution at present as yet.
The utility model content
Can't accurately detect the problem of the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications by electric energy meter at correlation technique, effective solution is not proposed at present as yet, for this reason, fundamental purpose of the present utility model is to provide a kind of pick-up unit and system, to address the above problem.
To achieve these goals, according to an aspect of the present utility model, provide a kind of pick-up unit, this pick-up unit comprises: input port, be connected with standard scale, and be used for the predetermined pulse signal of acceptance criteria table; Pulse converter is connected with input port, is used for the predetermined pulse conversion of signals is become electric pulse detection signal and light pulse detection signal; The electric pulse output port is connected with pulse converter, is used to send the electric pulse detection signal; The light pulse output port is connected with pulse converter, is used to send the light pulse detection signal; Communication port is used to send the communication check signal.
Further, pick-up unit also comprises: receiving trap, be used for receiving the request of detection, and wherein, divide ratio is carried in the request of detection; Pulse converter comprises: sub-converter, be connected between receiving trap and the input port, and being used for the predetermined pulse conversion of signals is become frequency is the electric pulse detection signal and the light pulse detection signal of divide ratio.
Further, pick-up unit also comprises: receiving trap, be used for receiving the request of detection, and wherein, the detection communication baud rate is carried in the request of detection; Pick-up unit also comprises: processor, be connected with receiving trap, and be used for the obtaining communication baud rate for detecting the communication check signal of communication baud rate.
Further, processor comprises: storer, sub-processor, and wherein, storer is used to store one or more communication check signals; Sub-processor is connected between receiving trap and the storer, is used for reading communication baud rate for detecting the communication check signal of communication baud rate from storer.
Further, the light pulse output port comprises: LED light pulse lamp, and LED light pulse lamp comprises the high brightness luminescent pipe, LED light pulse lamp is used for the output optical pulse detection signal.
Further, the communication port of pick-up unit is the RS485 communication port, and the communication port of tester is the RS485 communication port.
Further, pick-up unit also comprises: display device, be connected with receiving trap, and be used for showing the request of detection.
Further, pick-up unit also comprises: the PC communication port, be connected with PC, and be used to receive the control signal of PC.
To achieve these goals, according on the other hand of the present utility model, provide a kind of detection system, this system comprises: pick-up unit, and detection system also comprises: tester, standard scale and electric energy meter, wherein, standard scale is used to send the predetermined pulse signal; Pick-up unit is connected with standard scale, and being used for the predetermined pulse conversion of signals is electric pulse detection signal and light pulse detection signal, and output electric pulse detection signal, light pulse detection signal and communication check signal; Electric energy meter is used to send light pulse signal, electric impulse signal and signal of communication; Tester is connected between pick-up unit and the electric energy meter, is used for the photoelectric sampler of detection check instrument and the duty of tester communication port.
Further, tester comprises: photoelectric sampler is used to gather the light pulse signal and the electric impulse signal of electric energy meter; The error instrument is connected between pick-up unit and the photoelectric sampler, is used for error of calculation value; First comparator is connected with the error instrument, is used for determining that according to error amount photoelectric sampler is in normal duty; The tester communication port is used to obtain the signal of communication of electric energy meter; Second comparator is connected between pick-up unit and the tester communication port, is used for determining that communication port is in normal duty.
Pass through the utility model, can send electric pulse detection signal, light pulse detection signal and communication check signal, the duty that is used for the detection check instrument, solved in the prior art problem that can't accurately detect the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications by electric energy meter, realized to the function of the photoelectric sampler of on-site calibrator configuration accurate detection, to the accurate detection of 485 communication functions of tester.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the pick-up unit of the utility model embodiment;
Fig. 2 is the detailed structure synoptic diagram according to the pick-up unit of the utility model embodiment;
Fig. 3 is the synoptic diagram according to pick-up unit embodiment illustrated in fig. 2; And
Fig. 4 is the structural representation according to the detection system of the utility model embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the structural representation according to the pick-up unit of the utility model embodiment.As shown in Figure 1, this pick-up unit comprises: input port 10, be connected with standard scale, and be used for the predetermined pulse signal of acceptance criteria table; Pulse converter 30 is connected with input port 10, is used for the predetermined pulse conversion of signals is become electric pulse detection signal and light pulse detection signal; Electric pulse output port 50 is connected with pulse converter, is used to send the electric pulse detection signal; Light pulse output port 70 is connected with pulse converter, is used to send the light pulse detection signal; Communication port 90 is used to send the communication check signal.
Adopt pick-up unit of the present utility model, predetermined pulse signal by input port acceptance criteria table, pulse converter becomes electric pulse detection signal and light pulse detection signal with the predetermined pulse conversion of signals then, and pass through to pass through respectively electric pulse output port and light pulse output port output electric pulse detection signal and light pulse detection signal, and can send the communication check signal by communication port.Pass through the utility model, can send electric pulse detection signal, light pulse detection signal and communication check signal, the duty that is used for the detection check instrument, solved in the prior art problem that can't accurately detect the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications by electric energy meter, realized to the function of the photoelectric sampler of on-site calibrator configuration accurate detection, to the accurate detection of 485 communication functions of tester.
According to the foregoing description of the present utility model, pick-up unit can also comprise: receiving trap 130, be used for receiving the request of detection, wherein, divide ratio is carried in the request of detection, and wherein, pulse converter can comprise: sub-converter, be connected between receiving trap 130 and the input port 10, being used for the predetermined pulse conversion of signals is become frequency is the electric pulse detection signal and the light pulse detection signal of divide ratio.
In addition, the request of detection can also be carried the detection communication baud rate, and wherein, pick-up unit can also comprise: processor 110, be connected with receiving trap 130, and be used for the obtaining communication baud rate for detecting the communication check signal of communication baud rate.
Particularly, processor 110 can comprise: storer 111, sub-processor 113, and wherein, storer 111 is used to store one or more communication check signals; Sub-processor 113 is connected between receiving trap 130 and the storer 111, is used for reading communication baud rate for detecting the communication check signal of communication baud rate from storer 111.
Wherein, sub-processor 113 sends for the communication check signal that detects communication baud rate the communication baud rate that reads by communication port 90.
Particularly, can frequency division scope 1～10 be set and display standard electrical energy pulse divide ratio by receiving trap 130
-6, divide ratio can be manually or procedure Selection; Can also be provided with and the display communication baud rates by receiving trap 130, baud rate scope 1200bps～19200bps, communication baud rate also can be manually or procedure Selection.
Can receive the test request of carrying different divide ratios and different communication baud rate by receiving trap 130 by pick-up unit of the present utility model, to realize the Data Detection of multiple baud rate and communication protocol.
As shown in Figures 2 and 3, light pulse output port 70 can comprise: LED light pulse lamp, and LED light pulse lamp comprises the high brightness luminescent pipe, LED light pulse lamp is used for the output optical pulse detection signal.
In the novel the foregoing description of this use, the communication port of pick-up unit can be the RS485 communication port, and the communication port of tester also can be the RS485 communication port.
Particularly, pick-up unit can also comprise: display device, be connected with receiving trap 130, and be used for showing the request of detection.
In addition, pick-up unit can also comprise: the power supply input media, be connected with power supply, and be used to signal generator that electric energy is provided; The PC communication port is connected with PC, is used to receive the control signal of PC.
Pick-up unit is of a size of 200mm*120mm*58mm, and light pulse output LED lamp is arranged on the pick-up unit front, adopts steel panel around the light pulse output lamp, realizes the detection of absorption type photoelectric sampler.
Can be used with electric energy meter calibrating apparatus by pick-up unit of the present utility model, to detect the photoelectric sampler of absorption type or other mounting means.
Pick-up unit as shown in Figures 2 and 3 can comprise processor 110, be built in storer and sub-processor, pulse converter (also can be programmable logic chip), power supply input media 170, display device 190, receiving trap 130, input port 10, electric pulse output port 50, light pulse output port 70, RS232 communication port 150 and RS485 communication port 90 in the processor 110.Wherein, display device can realize detecting the demonstration of request by 8 light-emitting diode displays, receiving trap 130 can comprise that divide ratio or baud rate selection function are provided with key, select frequency division to be set or baud rate is set by this key, receiving trap 130 can also comprise the numerical range enter key, can upper and lower circulation select default function numerical value by this key, wherein, the default value scope of divide ratio comprises: 1～10
-6Be divided into 7 grades, baud rate numerical value range of choice comprises: 1200bps～19200bps is divided into 5 grades, will show the numerical value of selecting on the display.
Each device shown in the figure can be represented with following code: POWER---power supply input media 170; FHin---input port 10; Fout---electric pulse output port 50; RS232 communication port---PC communication port 150; RS485 communication port---communication port 90.
In addition, sub-processor 113 can obtain control signal from PC by the RS232 communication port, and it is handled.
Detection system as shown in Figure 4 comprises: pick-up unit 1, and detection system can also comprise: tester 5, standard scale 3 and electric energy meter 7, wherein, standard scale 3 is used to send the predetermined pulse signal; Pick-up unit 1 is connected with standard scale 3, and being used for the predetermined pulse conversion of signals is electric pulse detection signal and light pulse detection signal, and output electric pulse detection signal, light pulse detection signal and communication check signal; Electric energy meter 7 is used to send light pulse signal, electric impulse signal and signal of communication; Tester 5, be connected between pick-up unit 1 and the electric energy meter 7, be used to use the photoelectric sampler of electric pulse detection signal, light pulse detection signal, communication check signal, light pulse signal, electric impulse signal and signal of communication detection check instrument 5 and the duty of tester 5 communication port.
Pass through the utility model, can send electric pulse detection signal, light pulse detection signal and communication check signal, the duty that is used for the detection check instrument, solved in the prior art problem that can't accurately detect the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications by electric energy meter, realized to the function of the photoelectric sampler of on-site calibrator configuration accurate detection, to the accurate detection of 485 communication functions of tester.
In the foregoing description of the present utility model, tester 5 can comprise: photoelectric sampler is used to gather the light pulse signal and the electric impulse signal of electric energy meter 7; The error instrument is connected between pick-up unit 1 and the photoelectric sampler, is used to calculate first error amount of electric impulse signal and electric pulse detection signal, also is used to calculate second error amount of light pulse signal and light pulse detection signal; First comparator is connected with the error instrument, is used for meeting under the situation of first preset range in the difference of first error amount and second error amount, determines that photoelectric sampler is in normal duty; Tester 5 communication port are used to obtain the signal of communication of electric energy meter 7; Second comparator is connected between pick-up unit 1 and tester 5 communication port, is used for meeting under the situation of first preset range in the error of communication check signal and signal of communication, determines that communication port is in normal duty.
Particularly, pick-up unit 1 can send light pulse detection signal and electric pulse detection signal, after the photoelectric sampler reception by on-site calibrator 5, the electric energy error value that standard electric energy meter 7 calculates on electric energy error value of calculating with on-site calibrator 5 self or the calibrating installation relatively, calculate first error amount, judge thus whether the function of photoelectric sampler sampled signal is normal.
Particularly, preserve one or more sets table truth of a matter certificates of different communication stipulations in the storer of pick-up unit 1, on-site calibrator 5 can read table truth of a matter certificate in the pick-up unit 1 by 485 ports, judge by the situation of tester 5 video datas whether 485 communication functions are normal, judge simultaneously whether communication protocol is normal.
More specifically, adopting relatively, the electric energy error method detects photoelectric sampler, with the output pulse of standard scale 3 on electric energy meter 7 calibrating installations as the standard electric energy impulse, this standard electric energy impulse is inserted pick-up unit 1 from the FHin port, and pick-up unit 1 is converted to the pulse signal of same frequency or divide ratio respectively from Fout terminal and LED light pulse lamp output electric pulse detection signal and light pulse detection signal with this standard electric energy impulse.Then electric pulse detection signal and electric impulse signal are fed in the tester 5 or calibrating installation in the error instrument calculate first error amount, again light pulse signal and light pulse detection signal are drawn second error amount by the error instrument, whether qualified relatively whether the difference of two error amounts meets first preset range, meet in difference to draw photoelectric sampler conclusion under first preset range ground situation.
Wherein, the light pulse of pick-up unit 1 output lamp can touch from the front, and light pulse output lamp adopts the high brightness luminescent pipe, and the light pulse signal waveform meets the relevant requirements of GB/T17215.211-2006.The divide ratio of pick-up unit 1 is made as 7 grades, receiving trap comprises and part is set and selects part, choose " divide ratio " by the button of " setting " part earlier, select by the button of two " selection " part again, can stepping the LED light pulse signal and the electric impulse signal of output 1～10-6 multiple, the numerical value of selection shows on display window.The detector panel has the metal part, both can detect the photoelectric sampler of other various mounting meanss, also can detect the absorption type photoelectric sampler.Wherein, the standard electric energy impulse is the predetermined pulse signal.
Particularly, processor internal memory and sub-processor in the pick-up unit 1, according to different communication protocol design pre-stored data, the communication check signal of different communication baud rate is deposited into storer in advance, read for sub-processor, the communication port by pick-up unit 1 sends to tester 5 then.The communication port of the communication port of tester 5 and pick-up unit 1 all is the RS485 communication port.
Wherein, pick-up unit 1 default communication baud rate is 5 grades, chooses by the key of " setting " part earlier, selects by the button of two " selection " part again, selects suitable communication baud rate by the table specification, and the numerical value of selection shows on display window.Tester 5 read the table truth of a matter according to and show, by observing the table truth of a matter that shows, draw the whether qualified conclusion of function of the RS485 communication interface of tester 5 according to whether consistent with the numerical value that prestores.
From above description, as can be seen, the utility model has been realized following technique effect: pass through the utility model, can send electric pulse detection signal, light pulse detection signal and communication check signal, the duty that is used for the detection check instrument, solved in the prior art problem that can't accurately detect the function of the photoelectric sampler of electrical energy meter calibration instrument and 485 communications by electric energy meter, realized to the function of the photoelectric sampler of on-site calibrator configuration accurate detection, to the accurate detection of 485 communication functions of tester.
Pick-up unit of the present utility model and system can be used with existing electric energy meter calibrating apparatus, realize the test to the photoelectric sampler and the RS485 communication function of on-site calibrator.The test of photoelectric sampler uses the full sized pules frequency signal of high-grade standard scale to transform the photosignal test, not only can detect the photoelectric sampler sampling ability of on-site calibrator, can detect the verify error under this error measure pattern simultaneously.The RS485 communication test can be realized multiple communication protocol, multiple traffic rate, multinomial content measurements such as standard testing data read, comparatively comprehensively the RS485 communication function of test site tester.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a pick-up unit is characterized in that, comprising:
Input port is connected with standard scale, is used to receive the predetermined pulse signal of described standard scale;
Pulse converter is connected with described input port, is used for described predetermined pulse conversion of signals is become electric pulse detection signal and light pulse detection signal;
The electric pulse output port is connected with described pulse converter, is used to send described electric pulse detection signal;
The light pulse output port is connected with described pulse converter, is used to send described light pulse detection signal;
Communication port is used to send the communication check signal.
2. device according to claim 1 is characterized in that, described pick-up unit also comprises:
Receiving trap is used for receiving the request of detection, and wherein, divide ratio is carried in described detection request;
Described pulse converter comprises: sub-converter, be connected between described receiving trap and the described input port, and being used for described predetermined pulse conversion of signals is become frequency is the electric pulse detection signal and the light pulse detection signal of described divide ratio.
3. device according to claim 1 is characterized in that, described pick-up unit also comprises:
Receiving trap is used for receiving the request of detection, and wherein, the detection communication baud rate is carried in described detection request;
Described pick-up unit also comprises: processor, be connected with described receiving trap, and being used for the obtaining communication baud rate is the communication check signal of described detection communication baud rate.
4. device according to claim 3 is characterized in that, described processor comprises: storer, sub-processor, wherein,
Described storer is used to store one or more described communication check signals;
Described sub-processor is connected between described receiving trap and the described storer, is used for reading the communication check signal that communication baud rate is described detection communication baud rate from described storer.
5. according to claim 2 or 3 described devices, it is characterized in that described light pulse output port comprises: LED light pulse lamp, described LED light pulse lamp comprises the high brightness luminescent pipe, described LED light pulse lamp is used to export described light pulse detection signal.
6. device according to claim 5 is characterized in that, the communication port of described pick-up unit is the RS485 communication port, and the communication port of tester is described RS485 communication port.
7. device according to claim 6 is characterized in that, described pick-up unit also comprises:
Display device is connected with described receiving trap, is used to show described detection request.
8. device according to claim 1 is characterized in that, described pick-up unit also comprises:
The PC communication port is connected with PC, is used to receive the control signal of described PC.
9. a detection system is characterized in that, comprising: any described pick-up unit in the claim 1 to 8, and described detection system also comprises: tester, standard scale and electric energy meter, wherein,
Described standard scale is used to send the predetermined pulse signal;
Described pick-up unit is connected with described standard scale, and being used for described predetermined pulse conversion of signals is electric pulse detection signal and light pulse detection signal, and exports described electric pulse detection signal, described light pulse detection signal and communication check signal;
Described electric energy meter is used to send light pulse signal, electric impulse signal and signal of communication;
Described tester is connected between described pick-up unit and the described electric energy meter, is used to detect the photoelectric sampler of described tester and the duty of tester communication port.
10. system according to claim 9 is characterized in that, described tester comprises:
Described photoelectric sampler is used to gather the light pulse signal and the electric impulse signal of electric energy meter;
The error instrument is connected between described pick-up unit and the described photoelectric sampler, is used for error of calculation value;
First comparator is connected with described error instrument, is used for determining that according to described error amount described photoelectric sampler is in normal duty;
Described tester communication port is used to obtain the signal of communication of described electric energy meter;
Second comparator is connected between described pick-up unit and the described tester communication port, is used for determining that described communication port is in normal duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696156 CN203084184U (en) | 2012-12-14 | 2012-12-14 | Detection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696156 CN203084184U (en) | 2012-12-14 | 2012-12-14 | Detection device and system |
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| Publication Number | Publication Date |
|---|---|
| CN203084184U true CN203084184U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696156 Expired - Lifetime CN203084184U (en) | 2012-12-14 | 2012-12-14 | Detection device and system |
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| CN (1) | CN203084184U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424732A (en) * | 2013-08-05 | 2013-12-04 | 广西电网公司电力科学研究院 | Detection device and detection method for direct current electric energy meter |
| CN105486918A (en) * | 2016-01-18 | 2016-04-13 | 广东美的暖通设备有限公司 | Electric quantity management method and system |
| CN106908750A (en) * | 2017-01-10 | 2017-06-30 | 河南许继仪表有限公司 | A kind of electric energy meter pulse error detection method and device |
| CN110888103A (en) * | 2019-12-27 | 2020-03-17 | 深圳市华越国际电子科技有限公司 | Smart electric meter calibration device and equipment |
| 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 |
-
2012
- 2012-12-14 CN CN 201220696156 patent/CN203084184U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424732A (en) * | 2013-08-05 | 2013-12-04 | 广西电网公司电力科学研究院 | Detection device and detection method for direct current electric energy meter |
| CN103424732B (en) * | 2013-08-05 | 2015-10-28 | 广西电网公司电力科学研究院 | A kind of direct-current electric energy meter calibrating device |
| CN105486918A (en) * | 2016-01-18 | 2016-04-13 | 广东美的暖通设备有限公司 | Electric quantity management method and system |
| CN106908750A (en) * | 2017-01-10 | 2017-06-30 | 河南许继仪表有限公司 | A kind of electric energy meter pulse error detection method and device |
| CN110888103A (en) * | 2019-12-27 | 2020-03-17 | 深圳市华越国际电子科技有限公司 | Smart electric meter calibration device and equipment |
| 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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