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Modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method

A functional testing and open technology, applied in electronic circuit testing and other directions, to achieve the effect of improving scalability, improving efficiency, and simplifying the upgrade process

Inactive Publication Date: 2012-07-18
WISDRI WUHAN AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] STE also has disadvantages, most notably the overall cost: equipment capital costs, operating costs, and program development costs

Method used

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  • Modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method
  • Modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method
  • Modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method

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Embodiment Construction

[0065] figure 1 It is a structural block diagram of an embodiment of the present invention, which includes a system control center, a testing platform and a testing instrument; the testing platform includes a bed of needles, a relay switch group and a single-chip microcomputer, and the bed of needles is one-to-one corresponding to the test point positions of the PCBA. Composed of probes, the probes are connected to a relay switch group, and the relay switch group is controlled by a single-chip microcomputer; the system control center is a computer equipped with an FCT test system, and the computer communicates with the single-chip microcomputer and the test instrument; the test The instrument consists of programmable detection equipment, which is connected to the PCBA. The computer communicates with the single-chip microcomputer and the test instrument through a USB interface or a serial port.

[0066] The testing platform is mainly composed of a relay switch group and a need...

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Abstract

The invention provides a modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method. The quality of a PCBA product is effectively controlled by using a half-automatic test manner. When a test table uses a needle bed and a relay switching group controlled by a single chip microcomputer to test different PCBAs, probes of the needle bed are reconfigured, and then one ends of the probes are connected with a relay, so that the expansibility is improved. In view of the system reusability, the test table matched with one type of the PCBA is pre-manufactured. When the PCBA is tested by only using the corresponding test table and opening an attest file, the test efficiency is greatly improved. A test instrument can be replaced according to test demands, so as to expand a system test function. The modularization open PCBA functional circuit test platform is a core of an entire test platform to control the operation state of the entire test process and is used for judging and recording the test content and result of each step, so that the test result is finally obtained. The modularized open PCBA functional circuit test platform is convenient to store and output the data.

Description

technical field [0001] The invention belongs to the field of automatic function testing equipment, in particular to a modular open PCBA function testing platform. Background technique [0002] PCBA is called installed circuit board in Chinese. In the mass production process of PCBA, due to the operation status of equipment and human factors of operators, it is impossible to guarantee that all PCBAs produced are in good condition. This requires adding various components at the end of production. Various test equipment and test tools to ensure that all the installed circuit boards in the factory are completely consistent with the various specifications and parameters at the time of design, which produces various tests such as ICT, AOI, X-Ray, Boundary-Scan, FCT, etc. means. Although various new technologies emerge in an endless stream, functional testing is still an essential means to ensure that the product can work immediately in the final application environment. [0003]...

Claims

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Application Information

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IPC IPC(8): G01R31/28
Inventor 李鹏王胜勇康现伟徐晖刘亮卢家斌李传涛李四川李海东
Owner WISDRI WUHAN AUTOMATION
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