CN201266225Y - Test device for circuit board of electric energy meter based on virtual instrument technology - Google Patents
Test device for circuit board of electric energy meter based on virtual instrument technology Download PDFInfo
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- CN201266225Y CN201266225Y CNU2008201648350U CN200820164835U CN201266225Y CN 201266225 Y CN201266225 Y CN 201266225Y CN U2008201648350 U CNU2008201648350 U CN U2008201648350U CN 200820164835 U CN200820164835 U CN 200820164835U CN 201266225 Y CN201266225 Y CN 201266225Y
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- energy meter
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- circuit board
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Abstract
The utility model discloses an electric energy meter breadboard testing device based on the virtual instrument technology, having the advantages of high density of integration, simple maintenance, high testing efficiency, good universality and low production cost. The electric energy meter breadboard testing device comprises a power supply, a signal module, a communication module, a testing tool, a computer provided with an analog instrument software platform, a signal conversion module and a control switching module, wherein the power supply is electrically connected with the signal module; the communication module is electrically connected with the testing tool; the computer is respectively electrically connected with the power supply, the signal conversion module and the communication module; the signal conversion module is also respectively electrically connected with the control switching module and the testing tool; and the control switching module is also respectively electrically connected with the signal module and the testing tool.
Description
Technical field
The utility model relates to technical field of measurement and test, specifically is a kind of circuit board test device of the electric energy meter based on virtual instrument technique.
Background technology
The wiring board of electric energy meter has referred to the PCB circuit board of each functional module of electric energy meter integrated, this PCB circuit board is the core component of electric energy meter, having represented the technical strength of electric energy meter producer, is unusual critical step in the electric energy meter production run for the test of the wiring board of electric energy meter.
Principle of work according to electric energy meter, the test job of the wiring board of electric energy meter has following basic demand for the circuit board test device of electric energy meter: 1, the circuit board test device of electric energy meter can provide direct current of voltage regulation source signal and ac sampling signal for described wiring board, makes the wiring board operate as normal; 2, the circuit board test device of electric energy meter can be exported different direct current of voltage regulation source signals, ac sampling signal and switching value control signal, the different operating environment of analog line plate; 3, the circuit board test device of electric energy meter can read by the communication module of wiring board wiring board single-chip microcomputer data or write data to described single-chip microcomputer; 4, the circuit board test device of electric energy meter can be gathered the magnitude of voltage of each test point of wiring board; 5, the circuit board test device of electric energy meter can be handled the data that test is obtained, and the data after raw data and the processing are all stored, in order to inquiring about and sharing and use.
In order to satisfy above-mentioned basic demand, the circuit board test device of the electric energy meter of prior art is made of a plurality of independently proving installations, such as multimeter, single three-phase precise stabilized voltage supply, the palm PC that has infrared communication function and general RS485 adaptation, the circuit board test device of whole electric energy is compact inadequately, integrated level is not high, difficult in maintenance, and each proving installation all needs people's participation, such as operate described multimeter by the people, and come record test data by the people, the data that test obtains need be imported (the FIS:Factory Information System of FIS system by the people, promptly make the field management infosystem) in, though can arrange pipelining, whole test process efficient is still very low, and the accuracy of test can't be given reliable assurance; At different wiring boards, the circuit board test device of described electric energy meter need adopt different testing schemes, this different circuit board test device that structurally will use corresponding electric energy meter exactly that embodies that is to say that the circuit board test device versatility of existing electric energy meter is not high.Because the circuit board test device of preparing many cover electric energy meters is realized the testing scheme of multiple wiring board, and the circuit board test device of every cover electric energy meter all must have the quite a few people to operate, test is finished in cooperation, so the circuit board test device of the electric energy meter of prior art brings huge cost pressure to production, and production efficiency also can't improve.
The utility model content
The technical problems to be solved in the utility model is, a kind of integrated level height is provided, safeguard simple, testing efficiency is high, versatility good, production cost is low based on the circuit board test device of the electric energy meter of virtual instrument technique.
The technical solution of the utility model is, a kind of circuit board test device based on the electric energy meter of virtual instrument technique with following structure is provided, it comprises power supply, signaling module, communication module and test fixture, described power supply is electrically connected with signaling module, described communication module is electrically connected with test fixture, and it also comprises computing machine, signal conversion module and the control handover module that virtual instrument software platform is installed; Described computing machine is electrically connected with power supply, signal conversion module, communication module respectively; Described signal conversion module also is electrically connected with control handover module, test fixture respectively; Described control handover module also is electrically connected with signaling module, test fixture respectively.
After adopting said structure, the utility model compared with prior art has the following advantages: because the utility model also comprises computing machine, signal conversion module and the control handover module that virtual instrument software platform is installed; Described computing machine is electrically connected with power supply, signal conversion module, communication module respectively; Described signal conversion module also is electrically connected with control handover module, test fixture respectively; Described control handover module also is electrically connected with signaling module, test fixture respectively; So existing voltage signal, current signal and signal of communication are all transferred to computing machine and are controlled, gather and handle in the wiring board test process of electric energy meter, nobody's intervention, so just improved the efficient of test greatly, because described voltage signal, current signal and signal of communication are all transferred to computing machine and are controlled, gather and handle, so whole testing device integrated level height is safeguarded simple; Because when the different wiring board of test, operation is just passable automatically by computing machine as long as the staff accesses accordingly the testing scheme of the wiring board that exists with form of software, so the utility model versatility is very high; Because as long as a people just can finish test by computing machine, and the utility model versatility height, so the cost of the wiring board of electric energy meter test reduces greatly.
As improvement, the LabVIEW 8.5 software through pictures systems that described virtual instrument software platform is produced for NI company, because LabVIEW 8.5 software through pictures systems are very ripe, and powerful, cost performance is high, so can make the testing scheme of the wiring board of multiple electric energy meter realizes on computers, and the good stability of LabVIEW 8.5 software through pictures systems, can guarantee stable on production line, the operation for a long time of circuit board test device of described electric energy meter based on virtual instrument technique, for enterprise brings lasting benefit.
As further improvement, described computing machine is ordinary individual's computing machine, because ordinary individual's computing machine is very cheap than industrial computer, and ordinary individual's computing machine can satisfy the circuit board test device service requirement of described electric energy meter based on virtual instrument technique fully, so ordinary individual's computing machine extremely is of value to cost control of the present utility model.
As further improvement, the PCI-6221 multifunctional data acquisition card that described signal conversion module is produced for NI company, described PCI-6221 multifunctional data acquisition card is a powerful and cheap multifunctional data acquisition card, it can well compatible described virtual instrument software platform, very is of value to the raising of performance of the present utility model.
Description of drawings
Accompanying drawing is the circuit block diagram of the circuit board test device of a kind of electric energy meter based on virtual instrument technique of providing of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the circuit board test device of the utility model provides a kind of electric energy meter based on virtual instrument technique comprises power supply, signaling module, communication module and test fixture, described power supply is electrically connected with signaling module, described communication module is electrically connected with test fixture, and it also comprises computing machine, signal conversion module and the control handover module that virtual instrument software platform is installed; Described computing machine is electrically connected with power supply, signal conversion module, communication module respectively; Described signal conversion module also is electrically connected with control handover module, test fixture respectively; Described control handover module also is electrically connected with signaling module, test fixture respectively.
The LabVIEW 8.5 software through pictures systems that described virtual instrument software platform is produced for NI company.
Described computing machine is ordinary individual's computing machine.
Described signal conversion module is the PCI-6221 multifunctional data acquisition card that NI company produces, and this PCI-6221 multifunctional data acquisition card directly is inserted in the PCI groove in the mainframe box of described computing machine, by the power supply power supply of mainframe box.
Described power supply adopts 220V, 50Hz AC power.
Described signaling module comprises three-phase alternating-current supply part and direct supply part.Described three-phase alternating-current supply part is changed described 220V by transformer and inductance, and the 50Hz AC power gets, and is prior art.Described direct supply partly adopts Switching Power Supply, and one of them Switching Power Supply is described control handover module power supply.
Described communication module comprises the outer communicating circuit of a 38kHz modulated red, two RS232 communicating circuits able to programme and two RS485 communicating circuits able to programme, the outer communicating circuit of described 38kHz modulated red, RS232 communicating circuit and RS485 communicating circuit convert USB interface to by chip PL2303, SP213EH, GL850A, and described computing machine is electrically connected with communication module and is meant that described USB interface of computer is electrically connected with the USB interface of described communication module.
Described test fixture comprises universal test base, the gentle tool of starting building of PCB test needle-bar, and described universal test base, the gentle moving anchor clamps of PCB test needle-bar all are prior art, do not add and give unnecessary details.Described test fixture is electrically connected with communication module, signal conversion module, control handover module respectively and is meant that described universal test base is electrically connected with communication module, signal conversion module, control handover module respectively by winding displacement, and described PCB test needle-bar directly is electrically connected with described universal test base by the winding displacement interface, the wiring board of described electric energy meter is fixed on the plane of going up movable up and down of described test needle-bar, different wiring boards uses different test needle-bars, and described universal test base does not need to change.The last plane of described test needle-bar has the through hole that can allow the probe of described test needle-bar stretch.A RS232 communication interface of described communication module is electrically connected with described air tool RS232 communication interface.Described pneumatic tool adopts the SRC pneumatic tool, and this pneumatic tool drives the last plane of described PCB test needle-bar, and the probe that makes PCB test needle-bar contacts the solder joint on the wiring board of electric energy meter, and this solder joint is test point just.
Described control handover module adopts general control relay circuit, the relay that present embodiment adopts is the G6S-2 of Omron, each G6S-2 controls by a triode, the base stage of this triode is electrically connected with the corresponding port of described signal conversion module, the level of the base stage of described signal conversion module by changing described triode is controlled the duty of described triode, and described signal conversion module is electrically connected with computing machine, so the duty of described relay is controlled by computing machine.Described control handover module is electrically connected with described signaling module and is meant that described relay partly is electrically connected with described three-phase alternating-current supply part and direct supply.Each corresponding four relay of described three-phase alternating-current supply part, one of them relay is used for controlling the break-make and the direction of this cross streams voltage, and other three relays are used for controlling the break-make and direction, this meritorious state mutually and this idle state mutually of this cross streams electric current; Described other three relays are designated as A, B, C respectively, and described A relay is controlled the break-make and the direction of described alternating current, and described B relay is controlled described meritorious state, and described C relay is controlled described idle state; Described A relay has two-way output, wherein one the tunnel directly export described universal test base to, another road output of described A relay is electrically connected with the input of B relay, C relay respectively, export behind two identical electric capacity of corresponding output series connection of described C relay with behind the corresponding output-parallel of described B relay, that is to say that one tunnel output of A relay exports described universal test base to by B relay or C relay at least; Two identical electric capacity of corresponding output series connection of described C relay are meant that the corresponding output of described C relay is connected with the positive electrical of an electric capacity, the negative pole of this electric capacity negative electricity of the electric capacity identical with another again connects, the positive pole of described another identical electric capacity is exported as output terminal, behind two identical electric capacity of corresponding output serial connection of described C relay with the corresponding output-parallel of described B relay after output export after being meant the corresponding output-parallel of described output terminal and described B relay.Corresponding relay of each road direct current of described direct supply part.By the duty of computer control relay, the circuit board test device of described electric energy meter based on virtual instrument technique just can be simulated the different operating environment of electric energy meter, such as outage, the full decompression of three-phase, meritorious state, idle state.Described control handover module is electrically connected the output that is meant described relay and is electrically connected with described universal test base with described test fixture.
When testing the wiring board of electric energy meter, the staff at first selects testing scheme in computing machine, then, wiring board is fixed on the last plane of PCB test needle-bar, then with the testing button of the described virtual instrument software platform of click, computing machine is promptly carried out test process according to program in advance.At first, computing machine can send instruction to described pneumatic tool by communication module, make its last plane that drives PCB test needle-bar move downward slowly, the probe of described PCB test needle-bar will be stretched the solder joint on the wiring board that contacts electric energy meter, according to program setting, when the solder joint on the wiring board of the probe of described PCB test needle-bar and described electric energy meter contacted reliably, described pneumatic tool was stop motion.Then, computing machine is controlled the duty of described relay by signal conversion module, simulates the working environment of electric energy meter with this.Described signal conversion module is gathered the test data that probe obtained of described PCB test needle-bar, and automatically described test data is imported computing machine through digital-to-analog conversion.Whether described computing machine communicates by the wiring board of communication module and described electric energy meter, normal with this communication function of wiring board that detects described electric energy meter.Described computing machine to the data processing of being gathered after, the higher standard of making by oneself with the national standard or the enterprise of electric energy meter is as with reference to the state of judging the wiring board of the electric energy meter of being tested, the result of judgement is an acceptance or rejection.After test is finished, computing machine will be on its display screen display result and auditory tone cues, end of test (EOT), the staff is with click pickup button, pneumatic tool rises under the control of computing machine automatically fast then, the staff takes out the test line plate.Again test if desired, the staff is as long as click the testing button of described virtual instrument software platform again.
Below only be described with regard to the utility model preferred embodiment, but can not be interpreted as it is restriction to claim, all various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (4)
1, a kind of circuit board test device of the electric energy meter based on virtual instrument technique, it comprises power supply, signaling module, communication module and test fixture, described power supply is electrically connected with signaling module, described communication module is electrically connected with test fixture, it is characterized in that: it also comprises computing machine, signal conversion module and the control handover module that virtual instrument software platform is installed; Described computing machine is electrically connected with power supply, signal conversion module, communication module respectively; Described signal conversion module also is electrically connected with control handover module, test fixture respectively; Described control handover module also is electrically connected with signaling module, test fixture respectively.
2, the circuit board test device of the electric energy meter based on virtual instrument technique according to claim 1 is characterized in that: described virtual instrument software platform is the LabVIEW 8.5 software through pictures systems that NI company produces.
3, the circuit board test device of the electric energy meter based on virtual instrument technique according to claim 1, it is characterized in that: described computing machine is ordinary individual's computing machine.
4, the circuit board test device of the electric energy meter based on virtual instrument technique according to claim 1 is characterized in that: described signal conversion module is the PCI-6221 multifunctional data acquisition card that NI company produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201648350U CN201266225Y (en) | 2008-09-19 | 2008-09-19 | Test device for circuit board of electric energy meter based on virtual instrument technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201648350U CN201266225Y (en) | 2008-09-19 | 2008-09-19 | Test device for circuit board of electric energy meter based on virtual instrument technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266225Y true CN201266225Y (en) | 2009-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201648350U Expired - Lifetime CN201266225Y (en) | 2008-09-19 | 2008-09-19 | Test device for circuit board of electric energy meter based on virtual instrument technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266225Y (en) |
-
2008
- 2008-09-19 CN CNU2008201648350U patent/CN201266225Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315191 Yinzhou Industrial Park, Zhejiang, Ningbo, Yinzhou District, Ningbo Patentee after: NINGBO SANXING MEDICAL ELECTRIC CO., LTD. Address before: 315161 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: Ningbo Sanxing Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |