CN102967845A - Method and device for testing electric parameters of electric energy measuring module - Google Patents
Method and device for testing electric parameters of electric energy measuring moduleDownload PDFInfo
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- CN102967845A CN102967845ACN2012104474366ACN201210447436ACN102967845ACN 102967845 ACN102967845 ACN 102967845ACN 2012104474366 ACN2012104474366 ACN 2012104474366ACN 201210447436 ACN201210447436 ACN 201210447436ACN 102967845 ACN102967845 ACN 102967845A
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Abstract
Description
Technical field
The present invention relates to the electric measuring instrument apparatus field, more particular words it, the present invention relates to a kind of appliance arrangement and method of measuring the electric energy metering module electric parameter.
Background technology
At present, electric measuring instrument, for example instrument, data collection station manufacturing enterprise are in carrying out production test procedure, by manually parameters being operated one by one, mainly be by manual installation commissioning device and detecting instrument, do not realize that the robotization of producing detects, it is aobvious to cause mistake to detect, and production efficiency reduces.
Summary of the invention
The present invention is intended to solve the defective that prior art exists, design a kind of electrical parameters measure method and device of electric energy metering module, can effectively avoid aforementioned disadvantages, can realize resistance, voltage, electric current, communication, the isoparametric on-line synchronous of second error are measured, realize that the robotization of electrical measurement instrument detects.
In order to realize above-mentioned purpose of design, technical scheme 1 of the present invention, design a kind of electrical parameters measure method of electric energy metering module, can realize resistance, voltage, electric current, communication, the isoparametric on-line synchronous of second error are measured, and the Auto-mounting of realizing electrical measuring device detects, and need not artificial participation.
In order to realize above-mentioned purpose of design,technical scheme 2 of the present invention, design a kind of electrical parameter test device of electric energy metering module, mainly formed by FCT proving installation, control box, capture card and PC, data collecting card is integrated on the PC, by control box voltage and communication frequency is controlled.
Technical solution of the present invention 1: a kind of electrical parameters measure method of electric energy metering module comprises: 1) model according to an electric energy metering module to be measured arranges corresponding FCT test needle plate and lower platen; 2) by pneumatic means lower platen and compression leg are pressed down automatically along guide pillar, so that the testing needle on the FCT test needle plate contacts well with the test point of electric energy metering module to be measured; 3) being connected to a capture card by interface board tests with the electric parameter to described electric energy metering module to be measured; 4) by pneumatic means with lower platen and compression leg along the automatic lifting of guide pillar, so that the test point of the testing needle on the FCT test needle plate and electric energy metering module to be measured disconnects.
Further, in a preferred embodiment of the invention, described electric parameter comprises test resistance, test voltage, measuring current, communications parameter and second error.
Further, in a preferred embodiment of the invention, described test resistance is to draw resistance value by the constant current pressure testing method, and wherein the constant current pressure testing method comprises: connect measuring technique according to Kelvin four lines, 0.05% precision of framework and the 50ppm/ ℃ of constant current source that temperature is floated pass through Rt=V/I draws described resistance value, and wherein V is illustrated in the magnitude of voltage that records under 0.05% precision, and I represents the current value of constant current source.
Further, in a preferred embodiment of the invention, if described test voltage be in-10V is to+10V scope, the voltage signal values of the metering module to be measured that then obtains by capture card is the test voltage value; If be not in-10V is to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values of obtaining by described capture card multiply by the dividing potential drop coefficient and draws the test voltage value.
Further, in a preferred embodiment of the invention, set a reference resistor value at the voltage channel of described capture card, draw the measuring current value by described test voltage value divided by this reference resistor value.
Further, in a preferred embodiment of the invention, test fixture by the FCT proving installation is connected the communication terminal of electric energy metering module to be measured with the communication of FCT interface board, require to send corresponding order according to functional test, then represents the communication success if successfully receive the Returning communication frame.
Further, in a preferred embodiment of the invention, the test fixture by the FCT proving installation is connected module to be measured with the diurnal inequality tester, and the numerical value that the diurnal inequality check meter is measured transfers data to PC by 232 serial ports of PC.
Technical solution of the present invention 2: a kind of electrical parameter test device of electric energy metering module, formed by FCT proving installation, control box, capture card and PC, wherein said control box is connected to the interface board of capture card and FCT proving installation by its web joint, described FCT proving installation is connected to capture card by its diurnal inequality tester, and described capture card and PC are coupled.
Further, in a preferred embodiment of the invention, described FCT proving installation comprises base and mutually fenced with it shell, and base in the enclosure is provided with interface board, and described interface board further is connected to the FCT test needle plate by reference column; Further be provided with pneumatic means, described pneumatic means is connected to a lower platen, and described lower platen is fixed in the shell inside top by several guide pillars.
Further, in a preferred embodiment of the invention, described lower platen is double-decker, is connected and fixed by joint pin between the two-layer lower platen; Lower surface at described lower platen is provided with compression leg.
Further, in a preferred embodiment of the invention, be provided with testing needle with the interface board electrical contact at described FCT test needle plate.
Description of drawings
Preferred implementation of the present invention will be following by embodying with reference to the mode of accompanying drawing in detail, and the identical function components/modules among the figure is with same-sign mark in addition, wherein
Fig. 1 is the structure principle chart of the electrical parameter test device of electric energy metering module of the present invention;
Fig. 2 is the cross-section structure view of FCT proving installation of the present invention.
Embodiment
See figures.1.and.2, the electrical parameters measure method of electric energy metering module of the present invention comprises: 1) model according to an electricenergy metering module 7 to be measured arranges corresponding FCTtest needle plate 5 and lower platen 10; 2) bypneumatic means 12 lower platen 10 and compression leg 8 are pressed down automatically along guide pillar 11, so that the testing needle 6 on the FCTtest needle plate 5 contacts well with the test point of electricenergy metering module 7 to be measured; 3) be connected to acapture card 300 so that the electric parameter of described electricenergy metering module 7 to be measured is tested byinterface board 2; 4) bypneumatic means 12 with lower platen 10 and compression leg 8 along guide pillar 11 automatic liftings, so that the test point disconnection of the testing needle 6 on the FCTtest needle plate 5 and electricenergy metering module 7 to be measured.
After test finished, the above step of inverted repeat can enter the next round test.
Further, in a preferred embodiment of the invention, described electric parameter comprises test resistance, test voltage, measuring current, communications parameter and second error.
Further, in a preferred embodiment of the invention, described test resistance is to draw resistance value by the constant current pressure testing method, and wherein said constant current pressure testing method comprises: connect measuring technique according to Kelvin four lines, 0.05% precision of framework and the 50ppm/ ℃ of constant current source that temperature is floated pass through Rt=V/I draws described resistance value, and wherein V is illustrated in the magnitude of voltage that records under 0.05% precision, and I represents the current value of constant current source.
Further, in a preferred embodiment of the invention, if described test voltage be in-10V is to+10V scope, the voltage signal values of the metering module to be measured 7 that then obtains by capture card is the test voltage value; If be not in-10V is to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values of obtaining by described capture card multiply by the dividing potential drop coefficient and draws the test voltage value.
Further, in a preferred embodiment of the invention, set a reference resistor value at the voltage channel of described capture card, draw the measuring current value by described test voltage value divided by this reference resistor value.
Further, in a preferred embodiment of the invention, test fixture byFCT proving installation 100 is connected the communication terminal of electricenergy metering module 7 to be measured withinterface board 2 communications, require to send corresponding order according to functional test, then represents the communication success if successfully receive the Returning communication frame.
Further, in a preferred embodiment of the invention, the test fixture byFCT proving installation 100 is connectedmodule 7 to be measured withdiurnal inequality tester 110, and the numerical value that diurnalinequality check meter 110 is measured transfers data to PC 400 by 232 serial ports of PC 400.
Technical solution of the present invention 2: a kind of electrical parameter test device of electric energy metering module, it is characterized in that: itsFCT proving installation 100,control box 200,capture card 300 and PC 400 form, wherein saidcontrol box 200 is connected to theinterface board 2 ofcapture card 300 and FCT provinginstallation 100 by itsweb joint 210, described FCT provinginstallation 100 is connected to capturecard 300 by itsdiurnal inequality tester 110, and describedcapture card 300 is coupled with PC 400.
Wherein,control box 200 comprises power board 220, communication board 230 and theweb joint 210 that instead is not electrically connected with both, on the one hand provide voltage of power by power board 220 forFCT proving installation 100 andcapture card 300, control on the other hand the communication frequency ofcapture card 300 and module to be measured 7.
Further, in a preferred embodiment of the invention, described FCT provinginstallation 100 comprises base 1 and mutually fenced with it shell 20, and the base 1 in shell 20 is provided withinterface board 2, describedinterface board 2 further is connected to FCTtest needle plate 5 by reference column 3, can be in addition fastening by screw 4.Onneedle plate 5, can install for example electric energy meter of a module 7(to be measured, acquisition terminal or concentrator devices etc.), and be integrated with test lead and interface on theneedle plate 5, convenient test is used.Further have additionalpneumatic means 12, describedpneumatic means 12 is connected to a lower platen 10, and described lower platen 10 is fixed in shell 20 inside top by several guide pillars 11.
Further, in a preferred embodiment of the invention, described lower platen 10 is double-decker, has better buffering and fixation.Be connected and fixed by joint pin 9 between the two-layer lower platen 10; Lower surface at described lower platen 10 is provided with compression leg 8.When fixingelectric energy meter 7, send the successful connection signal byinterface board 2 to capturecard 300 and PC 400, PC 400 starts pneumatic means 12 lower platen 10 is compressedelectric energy meters 7 downwards along guide pillar 11 byinterface board 2 signal transmissions at this moment.
Further, in a preferred embodiment of the invention, be provided with testing needle 6 withinterface board 2 electrical contacts at described FCTtest needle plate 5, connect test loop by the testing needle 6 ofneedle plate 5 bottom sides this moment, and to capturecard 300 transmission connection signals,capture card 300 sends test parameters toelectric energy meter 7.
Further, in a preferred embodiment of the invention, described PC 400 comprises adisplay unit 410, is used for the electric parameter data value that shows thatelectric energy meter 7 sends to capturecard 300.
Being preferred implementation of the present invention only below, being intended to embody outstanding technique effect of the present invention and advantage, is not to be restriction to technical scheme of the present invention.Those skilled in the art will appreciate that all modifications of having done based on the technology of the present invention content, variation or substitute technology feature, all should be covered by in the technology category of claims opinion of the present invention.
Claims (9)
1. the electrical parameters measure method of an electric energy metering module is characterized in that comprising the steps:
1) model according to an electric energy metering module to be measured (7) arranges corresponding FCT test needle plate (5) and lower platen (10);
2) by pneumatic means (12) lower platen (10) and compression leg (8) are pressed down automatically along guide pillar (11), so that the testing needle (6) on the FCT test needle plate (5) contacts well with the test point of electric energy metering module to be measured (7);
3) be connected to a capture card (300) so that the electric parameter of described electric energy metering module to be measured (7) is tested by interface board (2);
4) by pneumatic means (12) with lower platen (10) and compression leg (8) along automatically lifting of guide pillar (11), so that the test point disconnection of the testing needle (6) on the FCT test needle plate (5) and electric energy metering module to be measured (7).
2. the electrical parameters measure method of electric energy metering module according to claim 1 is characterized in that: described electric parameter comprises test resistance, test voltage, measuring current, communications parameter and second error.
3. the electrical parameters measure method of electric energy metering module according to claim 2, it is characterized in that: described test resistance is to draw resistance value by the constant current pressure testing method, wherein
Described constant current pressure testing method comprises: connect measuring technique according to Kelvin four lines, 0.05% precision of framework and the 50ppm/ ℃ of constant current source that temperature is floated pass through Rt=V/I draws described resistance value, and wherein V is illustrated in the magnitude of voltage that records under 0.05% precision, and I represents the current value of constant current source.
4. the electrical parameters measure method of electric energy metering module according to claim 2, it is characterized in that: if described test voltage be in-10V is to+10V scope, the voltage signal values of the metering module to be measured (7) that then obtains by capture card is the test voltage value; If be not in-10V is to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values of obtaining by described capture card multiply by the dividing potential drop coefficient and draws the test voltage value.
5. the electrical parameters measure method of electric energy metering module according to claim 5 is characterized in that: the voltage channel at described capture card is set a reference resistor value, draws the measuring current value by described test voltage value divided by this reference resistor value.
6. the electrical parameter test device of an electric energy metering module, it is characterized in that: it is comprised of FCT proving installation (100), control box (200), capture card (300) and PC (400), wherein said control box (200) is connected to the interface board (2) of capture card (300) and FCT proving installation (100) by its web joint (210), described FCT proving installation (100) is connected to capture card (300) by its diurnal inequality tester (110), and described capture card (300) is coupled with PC (400).
7. the electrical parameter test device of electric energy metering module according to claim 6, it is characterized in that: described FCT proving installation (100) comprises base (1) and mutually fenced with it shell (20), base (1) in shell (20) is provided with interface board (2), and described interface board (2) further is connected to FCT test needle plate (5) by reference column (3); Further be provided with pneumatic means (12), described pneumatic means (12) is connected to a lower platen (10), and described lower platen (10) is fixed in shell (20) inside top by several guide pillars (11).
8. the electrical parameter test device of electric energy metering module according to claim 7, it is characterized in that: described lower platen (10) is double-decker, is connected and fixed by joint pin (9) between the two-layer lower platen (10); Lower surface at described lower platen 10 is provided with compression leg (8).
9. the electrical parameter test device of electric energy metering module according to claim 7 is characterized in that: be provided with testing needle (6) with interface board (2) electrical contact at described FCT test needle plate (5).
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| CN201210447436.6ACN102967845B (en) | 2012-11-09 | 2012-11-09 | Method and device for testing electric parameters of electric energy measuring module |
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| CN201210447436.6ACN102967845B (en) | 2012-11-09 | 2012-11-09 | Method and device for testing electric parameters of electric energy measuring module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104237825A (en)* | 2014-09-01 | 2014-12-24 | 浙江八达电子仪表有限公司 | Multi-plate test board of electricity information acquiring terminal |
| CN104777393A (en)* | 2015-04-21 | 2015-07-15 | 东莞华贝电子科技有限公司 | An adjustable detection screw device |
| CN105738856A (en)* | 2016-03-28 | 2016-07-06 | 华立科技股份有限公司 | Electric energy meter calibration method having good safety |
| CN105842650A (en)* | 2016-03-28 | 2016-08-10 | 华立科技股份有限公司 | Electric energy meter calibrating method |
| CN109523706A (en)* | 2018-12-27 | 2019-03-26 | 斑马网络技术有限公司 | Group refueling method, vehicle, refueling device, fuel loading system and cloud server |
| CN110488181A (en)* | 2019-09-24 | 2019-11-22 | 中国铁路哈尔滨局集团有限公司 | The detection system of HXN5 type locomotive circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104237825A (en)* | 2014-09-01 | 2014-12-24 | 浙江八达电子仪表有限公司 | Multi-plate test board of electricity information acquiring terminal |
| CN104777393A (en)* | 2015-04-21 | 2015-07-15 | 东莞华贝电子科技有限公司 | An adjustable detection screw device |
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| CN110488181A (en)* | 2019-09-24 | 2019-11-22 | 中国铁路哈尔滨局集团有限公司 | The detection system of HXN5 type locomotive circuit |
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| CN102967845B (en) | 2015-07-08 |
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