CN102798772A - Intelligent universal test platform - Google Patents
Intelligent universal test platform Download PDFInfo
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- CN102798772A CN102798772A CN2011101415709A CN201110141570A CN102798772A CN 102798772 A CN102798772 A CN 102798772A CN 2011101415709 A CN2011101415709 A CN 2011101415709A CN 201110141570 A CN201110141570 A CN 201110141570A CN 102798772 A CN102798772 A CN 102798772A
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Abstract
The invention discloses an intelligent universal test platform, which comprises a main control board, a test clamp, a computer, a bar code scanning gun and a bar code printer, wherein the main control board is connected with the test clamp and connected with the computer through an RS232 bus; the computer is connected with the bar code printer and the bar code scanning gun through universal serial bus (USB) interfaces; and a high-speed micro processor, a multi-path high-speed and high-precision analog-to-digital conversion circuit, a multi-path high-speed and high-precision digital-to-analog conversion circuit, a multi-path relay switching circuit, an RS485 communication interface circuit and an RS232 communication interface circuit are arranged in the main control board. According to the intelligent universal test platform, the computer is used for setting test steps for realizing functions of sampling and analyzing analog signals of a tested printed circuit board (PCB) in real time, performing control output on the analog signals in real time, performing control output on a switching signal, testing communication data and the like, and an analog operation function can be checked. The intelligent universal test platform can test the electric characteristics and the functions of various PCBs and has a universal test function; and the test cost is saved, and the performance of a product is improved.
Description
Technical field
The present invention relates to the pcb board field tests, particularly relate to a kind of intelligent universal test platform that is applicable to universal PC B board test.
Background technology
Adopt of pcb board test macro tested detection to the simulating signal of test point more at present, needs to adopt testing tools such as multimeter, digital oscilloscope, and the testing procedure complicacy is loaded down with trivial details.
Particularly, generally adopt the manually-operated test to the operating function test of pcb board; Communication function test to pcb board then needs system-level line test, waste resource and man-hour.
Summary of the invention
The technical matters that the present invention will solve provides a kind of intelligent universal test platform, can test the electrical characteristics and the function of various pcb boards, has the universal test function, practices thrift testing cost.
For solving the problems of the technologies described above, intelligent universal test platform of the present invention comprises:
Master control borad; Adopt high-speed ADC (analog to digital converter) to carry out conversion testing to output property simulation test point signal; Adopt DAC (digital to analog converter) to change the input control of output or relay switch control output realization input test dot information to Introduced cases simulation test point, adopt the RS485 of pcb board to be measured or the protocol emulation of RS232 online data to realize the communication function test to communication data;
Computing machine is connected with master control borad through the RS232 bus, is used to set the decision rule of test parameter and test signal, realizes the judgement that on-line testing and test signal be whether qualified, test result is stored, and ability query and search test result; Through master control borad control Introduced cases simulation test point signal, change communication data; Signal feedback or communication data feedback system according to output property simulation test point realize detecting judgement, and combine test mode step by step, and analog manual operation's test finally realizes whole pcb board electrical characteristics and functional test;
Test fixture is connected with said master control borad, is used to connect pcb board to be measured, and sends the test point signal to master control borad;
Barcode scanner adopts USB interface to be connected with said computing machine, is used to read the information of pcb board to be measured, and computing machine calls relevant multistep test link automatically according to the information of pcb board and carries out the automatic test processes of multistep, realization information interlock function.
Also comprise: bar-code printer, adopt USB interface to be connected with said computing machine, be used for instant printing test result and testing procedure, be convenient to discern detecting information and call with production maintainability test information.
The present invention realizes test step by step automatically through computing machine, realizes the electrical characteristics and the functional test of general pcb board, can be applicable to the test of various pcb boards, has the universal test function, practices thrift testing cost, enhances product performance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 is intelligent universal test platform one example structure figure;
Fig. 2 is the master control borad one example structure figure among Fig. 1.
Embodiment
As shown in Figure 1, in one embodiment of this invention, said intelligent universal test platform comprises: master control borad 1, test fixture 5, computing machine 2, barcode scanner 3 and bar-code printer 4.Master control borad 1 is connected with test fixture 5.Master control borad 1 adopts the RS232 bus to be connected with computing machine 2.Computing machine 2 adopts USB interface to be connected with bar-code printer 3, barcode scanner 4.
Said master control borad 1 adopts high-speed ADC to carry out conversion testing to the output property simulation test point signal of pcb board to be measured; Adopt DAC to change the input control that output or relay switch control output realize Introduced cases simulation test dot information to the Introduced cases simulation test point of pcb board to be measured, adopt the RS485 of pcb board to be measured or the protocol emulation of RS232 online data to realize the communication function test to the communication data of pcb board to be measured.
Said computing machine 2 is used to set the decision rule of test parameter and test signal, realizes the judgement that on-line testing and test signal be whether qualified, and realization test result recording storage and test record query and search.Computing machine 2 is controlled Introduced cases simulation test point signal and is changed communication data through controlling said master control borad 1; Signal feedback or communication data feedback system according to output property simulation test point realize detecting judgement; This detection judges that the reliable thresholds scope that adopts feedback signal is judged and communication data information is judged the mode that combines; And combine test mode step by step; Analog manual operation's test, control DAC changes output or functional test is carried out in relay switch control output, finally realizes whole pcb board electrical characteristics and functional test.
Said test fixture 5 is used to connect concrete pcb board to be measured, and sends the test point signal to master control borad.
Said barcode scanner 3 is used to realize reading of pcb board information to be measured, and computing machine 2 calls relevant multistep test link automatically according to the information of pcb board and carries out the automatic test processes of multistep, realization information interlock function.
Said bar-code printer 4 is used for instant printing test result and testing procedure, is convenient to discern detecting information and calls with production maintainability test information.
Said Computer Storage have pcb board to be measured information and pcb board to be measured all Introduced cases simulation test points and the output property simulation test dot information that will accomplish; And record manual testing's step set information and the automatic testing setup table of multistep; After the information that reads pcb board, the automatic read test Step Information of computing machine table control master control borad carries out multistep to be tested automatically.
As shown in Figure 2; In one embodiment of this invention, the built-in high speed microprocessor of master control borad 1 101, multipath high-speed high precision analogue change-over circuit 102, multipath high-speed high precision D/A converting circuit 103, operational amplification circuit 104, bleeder circuit 105, multicircuit relay on-off circuit 106, RS485 communication interface circuit 107, two-way RS232 communication interface circuit 108 and power circuit 109.
The ARM chip LPC2368 of said high speed microprocessor 101 employing Philips realizes functions such as control and computing, is connected with multipath high-speed high precision analogue change-over circuit 102, multipath high-speed high precision D/A converting circuit 103, multicircuit relay on-off circuit 106, RS485 communication interface circuit 107 and two-way RS232 communication interface circuit 108 respectively.
Said high-speed, high precision analog to digital conversion circuit 102 adopts the ADS7844 chip, realizes the input of high-precision adc.High-speed, high precision analog to digital conversion circuit 102 is connected with the output property simulation test point of pcb board to be measured behind bleeder circuit 105, is used for read test point signal.
Said bleeder circuit 105 adopts electric resistance partial pressure and current limliting, is used to control the amplitude of simulating signal, makes it in effective read range of high-speed, high precision analog to digital conversion circuit 102.
Said high-speed, high precision D/A converting circuit 103 adopts the DAC7617U chip, is used to realize controlling the output of simulating signal.High-speed, high precision D/A converting circuit 103 is connected with the Introduced cases simulation test point of pcb board to be measured through operational amplification circuit 104 amplitude limits, is used for read test point signal.
Said operational amplification circuit 104 is used to control analog output signal, makes it in the effective range of pcb board input to be measured.
Said relay switching circuit 106 is used to realize the output control of switching signal, and switching signal is provided, and can simulate functions such as artificial button.
Said RS485 communication interface circuit 107 adopts the RSM3485 chip, connects the RS485 interface of pcb board to be measured, is used to realize the communications protocol digital simulation, the RS485 interface function of final test pcb board to be measured.
Said RS232 communication interface circuit 108 adopts the SP3232E chip; One the tunnel is connected with said computing machine 2; Realize computer control and data communication facility; Another road is connected with the RS232 interface of pcb board to be measured, is used to realize the communications protocol digital simulation, the RS232 interface function of final test pcb board to be measured.
Said power circuit 109 is used to master control borad 1 power supply is provided.
The present invention is used to realize that through the computer settings testing procedure analysis of simulating signal real-time sampling, the simulating signal of pcb board to be tested control functions such as output, switching signal control output and communication data test in real time, and can carry out the simulated operation functional verification.
More than through embodiment and embodiment the present invention has been carried out detailed explanation, its purpose is help to understand content of the present invention and implements according to this, but these are not the restriction of formation to flesh and blood of the present invention.It should be appreciated by those skilled in the art that under the prerequisite of principle that does not break away from the present invention and accompanying claims and context, various replacements, variation and modification all are possible.The various replacements, variation and the modification that do not break away from the principle of the invention all belong in the claim protection domain of the present invention.
Claims (4)
1. an intelligent universal test platform is characterized in that, comprising:
Master control borad; Adopt high-speed ADC to carry out conversion testing to output property simulation test point signal; Adopt DAC to change the input control of output or relay switch control output realization Introduced cases simulation test dot information to Introduced cases simulation test point, adopt the RS485 of pcb board to be measured or the protocol emulation of RS232 online data to realize the communication function test to communication data;
Computing machine is connected with said master control borad through the RS232 bus, is used to set the decision rule of test parameter and test signal, realizes the judgement that on-line testing and test signal be whether qualified, test result is stored, and ability query and search test result; Through master control borad control Introduced cases simulation test point signal, change communication data; Signal feedback or communication data feedback system according to output property simulation test point realize detecting judgement, and combine test mode step by step, and analog manual operation's test finally realizes whole pcb board electrical characteristics and functional test;
Test fixture is connected with said master control borad, is used to connect pcb board to be measured, and sends the test point signal to master control borad;
Barcode scanner adopts USB interface to be connected with said computing machine, is used to read the information of pcb board to be measured, and computing machine calls relevant multistep test link automatically according to the information of pcb board and carries out the automatic test processes of multistep, realization information interlock function.
2. intelligent universal test platform as claimed in claim 1; It is characterized in that, also comprise: bar-code printer, adopt USB interface to be connected with said computing machine; Be used for instant printing test result and testing procedure, be convenient to discern detecting information and call with production maintainability test information.
3. intelligent universal test platform as claimed in claim 1; It is characterized in that: the built-in high speed microprocessor of said master control borad, the multipath high-speed high precision analogue change-over circuit that is connected with this high speed microprocessor, multipath high-speed high precision D/A converting circuit, multicircuit relay on-off circuit, RS485 communication interface circuit, two-way RS232 communication interface circuit and power circuit; The bleeder circuit that is connected with every road high-speed, high precision analog to digital conversion circuit respectively, the operational amplification circuit that is connected with every road high-speed, high precision D/A converting circuit respectively; Said high speed microprocessor is realized control and computing;
Said high-speed, high precision analog to digital conversion circuit is realized the input of high-precision adc; Its output is connected with the output property simulation test point of pcb board to be measured after the bleeder circuit dividing potential drop, is used for read test point signal;
Said bleeder circuit adopts electric resistance partial pressure and current limliting, is used to control the amplitude of simulating signal, makes it in effective read range of high-speed, high precision analog to digital conversion circuit;
Said high-speed, high precision D/A converting circuit is used to realize controlling the output of simulating signal, and its output is connected with the Introduced cases simulation test point of pcb board to be measured through the operational amplification circuit amplitude limit, is used for read test point signal; Said operational amplification circuit is used to control analog output signal, makes it in the effective range of pcb board input to be measured;
Said relay switching circuit is used to realize the output control of switching signal, switching signal is provided, the analogue-key switch;
Said RS485 communication interface circuit connects the RS485 interface of pcb board to be measured, is used to realize the communications protocol digital simulation, the RS485 interface function of final test pcb board to be measured;
Said RS232 communication interface circuit one tunnel is connected with said computing machine; Realize computer control and data communication facility; Another road is connected with the RS232 interface of pcb board to be measured, is used to realize the communications protocol digital simulation, the RS232 interface function of final test pcb board to be measured;
Said power circuit is used to said master control borad power supply is provided.
4. intelligent universal test platform as claimed in claim 1; It is characterized in that: said Computer Storage have pcb board to be measured information and pcb board to be measured all Introduced cases simulation test points and the output property simulation test dot information that will accomplish; And record manual testing's step set information and the automatic testing setup table of multistep; After the information that reads pcb board, the automatic read test Step Information of computing machine table control master control borad carries out multistep to be tested automatically.
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| CN2011101415709A CN102798772A (en) | 2011-05-27 | 2011-05-27 | Intelligent universal test platform |
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| CN2011101415709A CN102798772A (en) | 2011-05-27 | 2011-05-27 | Intelligent universal test platform |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149527A (en) * | 2013-04-02 | 2013-06-12 | 精成科技电子(东莞)有限公司 | Printed circuit board (PCB) detecting device and corresponding method |
| CN105022683A (en) * | 2015-07-17 | 2015-11-04 | 伟创力电子技术(苏州)有限公司 | Computer-control-free general test platform |
| CN105182131A (en) * | 2015-09-10 | 2015-12-23 | 中国家用电器研究院 | General test platform and test method |
| CN105652183A (en) * | 2015-12-30 | 2016-06-08 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted system PCB mainboard automated testing method |
| CN105738742A (en) * | 2016-04-06 | 2016-07-06 | 江苏雷特电机股份有限公司 | Reactor on-line detection device |
| CN106940401A (en) * | 2017-03-13 | 2017-07-11 | 郑州云海信息技术有限公司 | A kind of impedance detecting method and system |
| CN111398781A (en) * | 2020-03-25 | 2020-07-10 | 合肥悦芯半导体科技有限公司 | Analog chip test circuit and system |
| CN113777464A (en) * | 2020-06-10 | 2021-12-10 | 深南电路股份有限公司 | Circuit board function testing device, system and method |
| WO2022247460A1 (en) * | 2021-05-25 | 2022-12-01 | 中兴通讯股份有限公司 | Printed circuit board, terminal, method, apparatus and storage medium |
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| CN101210952A (en) * | 2006-12-27 | 2008-07-02 | 中茂电子(深圳)有限公司 | Multi-test point semiconductor test machine station automated setting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149527A (en) * | 2013-04-02 | 2013-06-12 | 精成科技电子(东莞)有限公司 | Printed circuit board (PCB) detecting device and corresponding method |
| CN105022683A (en) * | 2015-07-17 | 2015-11-04 | 伟创力电子技术(苏州)有限公司 | Computer-control-free general test platform |
| CN105182131A (en) * | 2015-09-10 | 2015-12-23 | 中国家用电器研究院 | General test platform and test method |
| CN105182131B (en) * | 2015-09-10 | 2018-04-03 | 中国家用电器研究院 | Universal testing method |
| CN105652183A (en) * | 2015-12-30 | 2016-06-08 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted system PCB mainboard automated testing method |
| CN105738742A (en) * | 2016-04-06 | 2016-07-06 | 江苏雷特电机股份有限公司 | Reactor on-line detection device |
| CN106940401A (en) * | 2017-03-13 | 2017-07-11 | 郑州云海信息技术有限公司 | A kind of impedance detecting method and system |
| CN111398781A (en) * | 2020-03-25 | 2020-07-10 | 合肥悦芯半导体科技有限公司 | Analog chip test circuit and system |
| CN113777464A (en) * | 2020-06-10 | 2021-12-10 | 深南电路股份有限公司 | Circuit board function testing device, system and method |
| WO2022247460A1 (en) * | 2021-05-25 | 2022-12-01 | 中兴通讯股份有限公司 | Printed circuit board, terminal, method, apparatus and storage medium |
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Application publication date: 20121128 |