CN203811799U - Novel analog standard meter with digital electric energy meter detection function - Google Patents
Novel analog standard meter with digital electric energy meter detection function Download PDFInfo
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- CN203811799U CN203811799U CN201420169197.7U CN201420169197U CN203811799U CN 203811799 U CN203811799 U CN 203811799U CN 201420169197 U CN201420169197 U CN 201420169197U CN 203811799 U CN203811799 U CN 203811799U
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- 238000004364 calculation method Methods 0.000 claims description 3
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Abstract
The utility model discloses a novel analog standard meter with a digital electric energy meter detection function. The novel analog standard meter includes an A/D analog-to-digital converter, a DSP unit, an IEC61850 data modulator, an IEC61850/FT3 data demodulator, an error calculator, a display and human-computer interaction unit, a microprocessor and an interface unit; the A/D analog-to-digital converter and the DSP unit are connected with each other so as to be used for verification/standard tracing of an analog electric energy meter; the A/D analog-to-digital converter and the IEC61850 data modulator are connected with each other so as to be used for offline detection of a digital electric energy meter; and the IEC61850/FT3 demodulator and the DSP unit are connected with each other so as to be used for online verification comparison of an on-site digital electric energy meter. The novel analog standard meter of the utility model can perform electric energy metering on analog signals and can also meter digital signals, so that the digital electric energy meter can be detected through the metering of the analog standard meter, and therefore, defects existing in mutual comparison detection of analog and digital electric energy meters can be eliminated, and the novel analog standard meter has high accuracy.
Description
Technical field
The utility model relates to electric energy meter metering and field tests, specifically has the novel analog standard scale of digitalized electrical energy meter measuring ability.
Background technology
Along with the appearance of IEC61850 Intelligent transformer station digitizing standard and the development of relevant art, digitizing, networking electric energy meter are born thereupon.Therefore how to establish the problem that it detects standard, how to detect digitalized electrical energy meter, how its examination criteria is traced to the source etc. and also just to have been become vast metrological personnel to be concerned about.Yet electric energy meter examination criteria/device all belongs to analog quantity field, and digitalized electrical energy meter is not had to respective standard, in technology and metering, there is insoluble problem aspect tracing to the source, therefore cannot realize and vertically measure, trace to the source digitalized electrical energy meter.
In prior art, for digitalized electrical energy meter, detect and can only adopt like number table " table-table " comparison pattern at present, so-called standard digital electric energy meter is also acted on one's own, and its standard is difficult to effective checking, and therefore the result of comparison lacks scientific, legal effect.
Patent CN201607526 discloses a kind of for testing digitalized electric energy meter apparatus, realizes digital power source output, has used full sized pules plate as standard comparison, and what still use is " table-table " comparison pattern, and its standard is difficult to effective checking.
Patent CN103048638 discloses a kind of electric energy digital quantity signal multifunctional examining experiment device, comprise digital power source and pulse unit, realize digital signal transmission output, detect the standard value calculating of the outside tested signal source connecting, but do not possess live signal source function and simulated power source.
Simulation electric energy meter metering detection system is system very ripe, standard, if can utilize analog measurement system to realize digital electricity meter, detects, and can realize a mark dual-purpose, save measuring cost and can realize the detection of digitalized electrical energy meter again.
Utility model content
For solving prior art problem, to realize digitalized electrical energy meter mock standard and detect, the utility model provides a kind of novel analog standard scale with digitalized electrical energy meter measuring ability.
The technical solution of the utility model is: a kind of novel analog standard scale with digitalized electrical energy meter measuring ability, comprises A/D analog to digital converter, DSP unit, IEC61850 data modulator, IEC61850/FT3 data demodulator, Error Calculator.More preferably, also comprise demonstration and man-machine interaction unit, for controlling, show and microprocessor and the interface unit of man-machine interaction unit.
A/D analog to digital converter, IEC61850 data modulator, IEC61850/FT3 data demodulator, microprocessor, error calculation unit are all connected with DSP unit, and demonstration and man-machine interaction unit, interface unit are connected with microprocessor; The pulse output interface of the pulse output interface of DSP unit, digitalized electrical energy meter to be detected is all connected with the input interface of Error Calculator, and the pulse delivery outlet of DSP unit is the full sized pules delivery outlet for comparing with measured number electric energy meter.The delivery outlet of IEC61850 data modulator is digital signal delivery outlet, for providing signal to digitalized electrical energy meter offline inspection.
A/D analog to digital converter, DSP unit are connected and trace to the source for simulating the verification/standard of electric energy meter; A/D analog to digital converter is connected for digitalized electrical energy meter offline inspection with IEC61850 data modulator; IEC61850/FT3 detuner be connected with DSP unit for field digitized electric energy meter detect online, electronic type mutual inductance check and the checking of DSP computing function.By IEC61850 I/O port, electrical energy pulse I/O port, analog signal channel can form metering trace to the source/transmit, checking system, complete several table standard traceability system/transmission of quantity value network systems.
A/D analog to digital converter, IEC61850 data modulator, IEC61850 data demodulator are connected by data bus with DSP unit, and data rate is fast.More preferably, demonstration and man-machine interaction unit, interface unit are connected by data bus with microprocessor, between DSP unit and microprocessor, by data bus, are connected.
A/D analog to digital converter is 6 tunnels, receives respectively three-phase voltage, three-phase current simulating signal, has realized three-phase voltage, current analog signal input interface.
Interface unit comprises USB interface, RS232 interface and Ethernet interface, and USB interface, RS232 interface, Ethernet interface are all connected with microprocessor, and by interface unit, the utility model can carry out data transmission with external equipment.Demonstration and man-machine interaction unit comprise display screen, button, keyboard and mouse, facilitate the detection of digitalized electrical energy meter.
A kind of novel analog standard scale with digitalized electrical energy meter measuring ability of the application can be realized following detection, and simulation electrical energy meter calibration/standard is traced to the source, digitalized electrical energy meter offline inspection, simulation electric energy meter and digitalized electrical energy meter synchronization check.
The utility model beneficial effect comprises, the utility model possesses standard analog, digital electricity meter function, realize simulation electric energy meter and digitalized electrical energy meter synchronization check, by the metering method of mock standard table, digitalized electrical energy meter is detected, broken the method for the mutual comparison of digitalized electrical energy meter, scientific and reasonable, reliability and accuracy are higher.
Further, the utility model both can off-line verification electric energy meter, can, at X-ray inspection X electric energy meter, can be widely used laboratory and site environment again.
Further, the utility model had not only met traces to the source measuring control requirement but also has avoided arranging digitizing typical problem, adopt trace to the source/transfer mode of mock standard table completely, it is a kind of technical scheme of optimization, inner DSP is as simulation, digital common standard, greatly simplified system architecture, hardware is minimum, and cost is minimum.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utlity model has the novel analog standard scale of digitalized electrical energy meter measuring ability;
Fig. 2 is novel analog standard scale and the tested electric energy meter connection diagram that the utlity model has digitalized electrical energy meter measuring ability, and the structure in dotted line frame is the novel analog standard scale that the utlity model has digitalized electrical energy meter measuring ability.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical solutions of the utility model are described in further detail, so that those skilled in the art can better understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, a novel analog standard scale with digitalized electrical energy meter measuring ability, comprises A/D analog to digital converter, DSP unit, IEC61850 data modulator, IEC61850/FT3 data demodulator, Error Calculator, demonstration and man-machine interaction unit, for controlling, shows and microprocessor and the interface unit of man-machine interaction unit.
A/D analog to digital converter, IEC61850 data modulator, IEC61850/FT3 data demodulator, microprocessor, error calculation unit are all connected with DSP unit, and demonstration and man-machine interaction unit, interface unit are connected with microprocessor; The pulse output interface of the pulse output interface of DSP unit, digitalized electrical energy meter to be detected is all connected with the input interface of Error Calculator.
A/D analog to digital converter, DSP unit are connected and trace to the source for simulating the verification/standard of electric energy meter; A/D analog to digital converter is connected for digitalized electrical energy meter offline inspection with IEC61850 data modulator; IEC61850/FT3 detuner is connected with DSP unit and verifies online comparison, electronic type mutual inductance check and the checking of DSP computing function for field digitized electric energy meter.
A/D analog to digital converter, IEC61850 data modulator, IEC61850 data demodulator are connected by data bus with DSP unit.
A/D analog to digital converter is 6 tunnels, receives respectively three-phase voltage, three-phase current simulating signal.
Interface unit comprises USB interface, RS232 interface and Ethernet interface, and USB interface, RS232 interface, Ethernet interface are all connected with microprocessor.
Demonstration and man-machine interaction unit comprise display screen, button, keyboard and mouse.
As shown in Figure 2, simulation electrical energy meter calibration/standard is traced to the source, digitalized electrical energy meter offline inspection, simulation electric energy meter and digitalized electrical energy meter synchronization check.On-the-spot merge cells, virtual standard source is connected with IEC61850 data demodulator, the online digitalized electrical energy meter being connected with on-the-spot merge cells, virtual standard source, off-line digital electric energy meter, the pulse output end of simulation electric energy meter/electric energy standard is all connected with Error Calculator, off-line digital electric energy meter is connected with IEC61850 data modulator, simulation electric energy meter/electric energy standard is connected with A/D analog to digital converter, by above-mentioned connected mode, can realize simulation electrical energy meter calibration/standard traces to the source, digitalized electrical energy meter offline inspection, simulation electric energy meter and digitalized electrical energy meter synchronization check.
Below be only preferred implementation of the present utility model; be noted that for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a novel analog standard scale with digitalized electrical energy meter measuring ability, is characterized in that, comprises A/D analog to digital converter, DSP unit, IEC61850 data modulator, IEC61850/FT3 data demodulator, Error Calculator;
Described A/D analog to digital converter, IEC61850 data modulator, IEC61850/FT3 data demodulator, error calculation unit are all connected with DSP unit; The pulse output interface of described DSP unit, the pulse output interface of digitalized electrical energy meter to be detected are all connected with the input interface of Error Calculator;
Described A/D analog to digital converter, DSP unit are connected and trace to the source for simulating the verification/standard of electric energy meter;
Described A/D analog to digital converter is connected for digitalized electrical energy meter offline inspection with IEC61850 data modulator;
Described IEC61850/FT3 detuner is connected with DSP unit for field digitized electric energy meter in line core detection, electronic type mutual inductance check and the checking of DSP function of measuring;
The pulse delivery outlet of described DSP unit is full sized pules delivery outlet.
2. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 1, it is characterized in that, described A/D analog to digital converter, IEC61850 data modulator, IEC61850/FT3 data demodulator are connected by data bus with DSP unit.
3. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 1, is characterized in that, described A/D analog to digital converter is 6 tunnels, receives respectively three-phase voltage, three-phase current simulating signal.
4. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 1, is characterized in that, also comprises demonstration and man-machine interaction unit, for controlling, shows and microprocessor and the interface unit of man-machine interaction unit; Described demonstration and man-machine interaction unit, interface unit are connected with microprocessor; Described microprocessor is connected with DSP unit.
5. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 4, it is characterized in that, described interface unit comprises USB interface, RS232 interface and Ethernet interface, and described USB interface, RS232 interface, Ethernet interface are all connected with described microprocessor.
6. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 4, is characterized in that, described demonstration and man-machine interaction unit comprise display screen, button, keyboard and mouse.
7. the novel analog standard scale with digitalized electrical energy meter measuring ability according to claim 1, is characterized in that, the delivery outlet of described IEC61850 data modulator is digital signal delivery outlet, for providing signal to digitalized electrical energy meter offline inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169197.7U CN203811799U (en) | 2014-04-09 | 2014-04-09 | Novel analog standard meter with digital electric energy meter detection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169197.7U CN203811799U (en) | 2014-04-09 | 2014-04-09 | Novel analog standard meter with digital electric energy meter detection function |
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| CN203811799U true CN203811799U (en) | 2014-09-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901391A (en) * | 2014-04-09 | 2014-07-02 | 国家电网公司 | Novel analog standard meter with digital electric energy meter detection function and detection method |
| CN105093165A (en) * | 2015-09-08 | 2015-11-25 | 国家电网公司 | Comprehensive test method of pulse signals of digitization electric energy meter |
| CN107677982A (en) * | 2017-09-26 | 2018-02-09 | 国家电网公司 | A kind of digitalized electrical energy meter on-site calibrating method and device |
| CN112485754A (en) * | 2020-12-14 | 2021-03-12 | 深圳供电局有限公司 | Detection method and device of electric energy metering device, computer equipment and storage medium |
-
2014
- 2014-04-09 CN CN201420169197.7U patent/CN203811799U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901391A (en) * | 2014-04-09 | 2014-07-02 | 国家电网公司 | Novel analog standard meter with digital electric energy meter detection function and detection method |
| CN105093165A (en) * | 2015-09-08 | 2015-11-25 | 国家电网公司 | Comprehensive test method of pulse signals of digitization electric energy meter |
| CN105093165B (en) * | 2015-09-08 | 2017-06-16 | 国家电网公司 | A kind of integrated test facility of digitalized electrical energy meter pulse signal |
| CN107677982A (en) * | 2017-09-26 | 2018-02-09 | 国家电网公司 | A kind of digitalized electrical energy meter on-site calibrating method and device |
| CN112485754A (en) * | 2020-12-14 | 2021-03-12 | 深圳供电局有限公司 | Detection method and device of electric energy metering device, computer equipment and storage medium |
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