CN102967845B - 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 module Download PDFInfo
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- CN102967845B CN102967845B CN201210447436.6A CN201210447436A CN102967845B CN 102967845 B CN102967845 B CN 102967845B CN 201210447436 A CN201210447436 A CN 201210447436A CN 102967845 B CN102967845 B CN 102967845B
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Abstract
The invention discloses a method for testing electric parameters of an electric energy measuring module. The method includes that (1) a corresponding function circuit test (FCT) measuring needle plate and a lower pressing plate are arranged according to a model of an electric energy measuring module to be tested; (2) testing needles on the FCT testing needle plate can be contacted with testing points of the electric energy measuring module to be tested well through a pneumatic device; (3) the electric energy measuring module is connected with a collecting card through an interface board to test the electric parameters of the electric energy measuring module to be tested; and (4) the testing needles on the FCT testing needle plate are disconnected with the testing points of the electric energy measuring module to be tested through the pneumatic device, and therefore online synchronous measuring of parameters of resistance, voltage, current, communication, second errors and the like is achieved, and automatic installing and detecting of an electric measuring device are achieved. The invention further discloses a device for testing the parameters of the electric energy measuring module. The device is mainly composed of an FCT testing device, a control cabinet, the collecting card and a personal computer (PC), and the voltage and communication frequency are controlled through the control cabinet.
Description
Technical field
The present invention relates to electric measuring instrument apparatus field, in more specific words it, the present invention relates to a kind of appliance arrangement and the method for measuring electric energy metering module electric parameter.
Background technology
At present, electric measuring instrument, such as instrument, data collection station manufacturing enterprise are carrying out in production test procedure, by manually operating one by one parameters, mainly manually Installation and Debugging equipment and detecting instrument, do not realize the Aulomatizeted Detect produced, cause detecting aobvious by mistake, production efficiency reduces.
Summary of the invention
The present invention is intended to the defect solving prior art existence, design a kind of electrical parameters measure method and device of electric energy metering module, effectively can avoid aforementioned drawback, can realize measuring resistance, voltage, electric current, communication, the isoparametric on-line synchronous of error second, realize the Aulomatizeted Detect of electrical measurement instrument.
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 measuring resistance, voltage, electric current, communication, the isoparametric on-line synchronous of error second, and the Auto-mounting realizing electrical measuring device detects, without the need to 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, form primarily of FCT proving installation, control box, capture card and PC, data collecting card is integrated on 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, comprising: 1) corresponding FCT test needle plate and lower platen are set according to the model of an electric energy metering module to be measured; 2) by pneumatic means, lower platen and compression leg are pressed down automatically along guide pillar, make the testing needle on FCT test needle plate contact well with the test point of electric energy metering module to be measured; 3) capture card is connected to test the electric parameter of described electric energy metering module to be measured by interface board; 4) by pneumatic means by lower platen and compression leg along the automatic lifting of guide pillar, the test point of the testing needle on FCT test needle plate and electric energy metering module to be measured is disconnected.
Further, in a preferred embodiment of the invention, described electric parameter comprise test resistance, test voltage, measuring current, communications parameter and second error.
Further, in a preferred embodiment of the invention, described test resistance draws resistance value by constant current pressure testing method, and wherein constant current pressure testing method comprises: connect measuring technique according to Kelvin tetra-line, the constant current source of framework 0.05% precision and 50ppm/ DEG C of temperature drift, passes through R
t=V/I draws described resistance value, and wherein V represents the magnitude of voltage recorded 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 is in-10V in+10V scope, then the voltage signal values of the metering module to be measured obtained by capture card is test voltage value; If be not in-10V to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values obtained by described capture card is multiplied by dividing potential drop coefficient and draws 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 measuring current value by described test voltage value divided by this reference resistor value.
Further, in a preferred embodiment of the invention, by the test fixture of FCT proving installation, the communication terminal of electric energy metering module to be measured is connected with the communication of FCT interface board, requires to send corresponding order according to functional test, if successfully receive Returning communication frame, represent communication success.
Further, in a preferred embodiment of the invention, module to be measured be connected with diurnal inequality tester by the test fixture of FCT proving installation, the numerical value measured by diurnal inequality check meter, by 232 serial ports of PC, transfers data to PC.
Technical solution of the present invention 2: a kind of electrical parameter test device of electric energy metering module, be made up of 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 shell mutually fenced with it, and base is in the enclosure provided with interface board, and described interface board is connected to FCT test needle plate further by reference column; Be provided with pneumatic means further, described pneumatic means is connected to a lower platen, and described lower platen is fixed on 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 between two-layer lower platen by joint pin; The lower surface of described lower platen is provided with compression leg.
Further, in a preferred embodiment of the invention, described FCT test needle plate is provided with the testing needle with interface board electrical contact.
Accompanying drawing explanation
The preferred embodiment of the present invention will embodied in detail below by way of the mode with reference to accompanying drawing, and the identical function components/modules in figure is marked with same-sign, 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, comprising: 1) arrange corresponding FCT test needle plate 5 and lower platen 10 according to the model of an electric energy metering module 7 to be measured; 2) by pneumatic means 12, lower platen 10 and compression leg 8 are pressed down automatically along guide pillar 11, make the testing needle 6 on FCT test needle plate 5 contact well with the test point of electric energy metering module 7 to be measured; 3) capture card 300 is connected to test the electric parameter of described electric energy metering module 7 to be measured by interface board 2; 4) by pneumatic means 12 by lower platen 10 and compression leg 8 along guide pillar 11 lifting automatically, the testing needle 6 on FCT test needle plate 5 is disconnected with the test point of electric energy metering module 7 to be measured.
After test terminates, the above step of inverted repeat can enter next round test.
Further, in a preferred embodiment of the invention, described electric parameter comprise test resistance, test voltage, measuring current, communications parameter and second error.
Further, in a preferred embodiment of the invention, described test resistance draws resistance value by constant current pressure testing method, and wherein said constant current pressure testing method comprises: connect measuring technique according to Kelvin tetra-line, the constant current source of framework 0.05% precision and 50ppm/ DEG C of temperature drift, passes through R
t=V/I draws described resistance value, and wherein V represents the magnitude of voltage recorded 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 is in-10V in+10V scope, then the voltage signal values of the metering module to be measured 7 obtained by capture card is test voltage value; If be not in-10V to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values obtained by described capture card is multiplied by dividing potential drop coefficient and draws 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 measuring current value by described test voltage value divided by this reference resistor value.
Further, in a preferred embodiment of the invention, by the test fixture of FCT proving installation 100, the communication terminal of electric energy metering module 7 to be measured is connected with interface board 2 communication, requires to send corresponding order according to functional test, if successfully receive Returning communication frame, represent communication success.
Further, in a preferred embodiment of the invention, module 7 to be measured be connected with diurnal inequality tester 110 by the test fixture of FCT proving installation 100, the numerical value measured by diurnal inequality check meter 110, by 232 serial ports of PC 400, transfers data to 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: its FCT proving installation 100, control box 200, capture card 300 and PC 400 form, 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.
Wherein, the web joint 210 that control box 200 comprises power board 220, communication board 230 and is not instead electrically connected with both, one side for FCT proving installation 100 and capture card 300 provide voltage of power, controls the communication frequency of capture card 300 and module to be measured 7 by power board 220 on the other hand.
Further, in a preferred embodiment of the invention, described FCT proving installation 100 comprises base 1 and shell 20 mutually fenced with it, and the base 1 in shell 20 is provided with interface board 2, described interface board 2 is connected to FCT test needle plate 5 further by reference column 3, in addition fastening by screw 4.Needle plate 5 can be installed a module 7(to be measured such as electric energy meter, acquisition terminal or concentrator devices etc.), and needle plate 5 is integrated with test lead and interface, conveniently test use.Have additional pneumatic means 12 further, described pneumatic means 12 is connected to a lower platen 10, and described lower platen 10 is fixed on 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 two-layer lower platen 10; The lower surface of described lower platen 10 is provided with compression leg 8.When fixing electric energy meter 7, send successful connection signal by interface board 2 to capture card 300 and PC 400, now PC 400 is by interface board 2 signal transmission, starts pneumatic means 12 and lower platen 10 is compressed electric energy meter 7 downwards along guide pillar 11.
Further, in a preferred embodiment of the invention, described FCT test needle plate 5 is provided with the testing needle 6 with interface board 2 electrical contact, now connect test loop by the testing needle 6 of needle plate 5 bottom side, and sending connection signal to capture card 300, capture card 300 sends test parameter to electric energy meter 7.
Further, in a preferred embodiment of the invention, described PC 400 comprises a display unit 410, for showing the electric parameter data value that electric energy meter 7 sends to capture card 300.
These are only the preferred embodiment of the present invention, being intended to embody outstanding technique effect of the present invention and advantage, is not the restriction to technical scheme of the present invention.Those skilled in the art will appreciate that all are based on the amendment done by the technology of the present invention content, change or substitute technology feature, all should be covered by the technology category of claims of the present invention opinion.
Claims (5)
1. an electrical parameters measure method for electric energy metering module, is characterized in that comprising the steps:
1) corresponding FCT test needle plate (5) and lower platen (10) are set according to the model of an electric energy metering module to be measured (7);
2) by pneumatic means (12), lower platen (10) and compression leg (8) are pressed down automatically along guide pillar (11), make the testing needle (6) on FCT test needle plate (5) contact well with the test point of electric energy metering module to be measured (7);
3) capture card (300) is connected to test the electric parameter of described electric energy metering module to be measured (7) by interface board (2);
By pneumatic means (12) by lower platen (10) and compression leg (8) along guide pillar (11) lifting automatically, the testing needle (6) on FCT test needle plate (5) is disconnected with the test point of electric energy metering module to be measured (7); Wherein said electric parameter comprise test resistance, test voltage, measuring current, communications parameter and second error.
2. the electrical parameters measure method of electric energy metering module according to claim 1, is characterized in that: described test resistance draws resistance value by constant current pressure testing method, wherein
Described constant current pressure testing method comprises: connect measuring technique according to Kelvin tetra-line, and the constant current source of framework 0.05% precision and 50ppm/ DEG C of temperature drift, passes through R
t=V/I draws described resistance value, and wherein V represents the magnitude of voltage recorded under 0.05% precision, and I represents the current value of constant current source.
3. the electrical parameters measure method of electric energy metering module according to claim 1, it is characterized in that: if described test voltage is in-10V to+10V scope, then the voltage signal values passing through the metering module to be measured (7) that capture card (300) obtains is test voltage value; If be not in-10V to+10V scope, then voltage signal carries out dividing potential drop by a bleeder circuit, and the voltage signal values obtained by described capture card is multiplied by dividing potential drop coefficient and draws test voltage value.
4. the electrical parameters measure method of electric energy metering module according to claim 3, it is characterized in that: set a reference resistor value at the voltage channel of described capture card (300), draw measuring current value by described test voltage value divided by this reference resistor value.
5. the electrical parameter test device of an electric energy metering module, it is characterized in that: it is by FCT proving installation (100), control box (200), capture card (300) and PC (400) composition, 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), described capture card (300) and PC (400) are coupled, described FCT proving installation (100) comprises base (1) and shell mutually fenced with it (20), base (1) in shell (20) is provided with interface board (2), described interface board (2) is connected to FCT test needle plate (5) further by reference column (3), be provided with pneumatic means (12) further, described pneumatic means (12) is connected to a lower platen (10), described lower platen (10) is fixed on shell (20) inside top by several guide pillars (11), described lower platen (10) is double-decker, is connected and fixed between two-layer lower platen (10) by joint pin (9), the lower surface of described lower platen 10 is provided with compression leg (8), described FCT test needle plate (5) is provided with the testing needle (6) with interface board (2) electrical contact.
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| CN201210447436.6A CN102967845B (en) | 2012-11-09 | 2012-11-09 | Method and device for testing electric parameters of electric energy measuring module |
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| CN201210447436.6A CN102967845B (en) | 2012-11-09 | 2012-11-09 | Method and device for testing electric parameters of electric energy measuring module |
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| CN102967845B true CN102967845B (en) | 2015-07-08 |
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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 |
| CN104777393B (en) * | 2015-04-21 | 2018-08-28 | 东莞华贝电子科技有限公司 | A kind of adjustable detection screw device |
| CN105842650B (en) * | 2016-03-28 | 2018-06-19 | 华立科技股份有限公司 | Electric energy meter calibrating method |
| CN105738856B (en) * | 2016-03-28 | 2018-05-08 | 华立科技股份有限公司 | The good electric energy meter calibrating method of security |
| 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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| CN101581609A (en) * | 2009-06-17 | 2009-11-18 | 杨高利 | Method for measuring furnace outlet temperature field and device system thereof |
| CN202093161U (en) * | 2011-04-01 | 2011-12-28 | 青岛乾程电子科技有限公司 | Mass electric energy meter pulse acquisition device |
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Address after: HOLLEY Technology Park No. 181 310023 Hangzhou city Zhejiang District of Yuhang province Wuchang Avenue Patentee after: HOLLEY METERING LIMITED Address before: HOLLEY Technology Park No. 181 310012 Hangzhou city Zhejiang District of Yuhang province Wuchang Avenue Patentee before: Holley Metering Ltd. |