Flexibility detection system and method of circuit board

A detection system and detection method technology, applied in the direction of electronic circuit testing, etc., can solve the problems such as the CAN bus communication technology is not very suitable, cannot communicate directly with the PC, information is blocked, etc., and achieves simple debugging, low cost, and improved accuracy. Effect

Inactive Publication Date: 2012-10-17
NINGBO UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

According to CAN's priority mechanism, messages with a lower priority than it are temporarily or permanently blocked
In addition, the CAN bus technology requires the controller and the transceiver to work together, and cannot directly communicate with the PC (additional equipment is required), and there is a problem of complicated debugging
Especially for the low-cost detection of some small batches, multi-batches, and high-density circuit boards, it is not very suitable to use the existing CAN bus communication technology

Method used

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  • Flexibility detection system and method of circuit board
  • Flexibility detection system and method of circuit board
  • Flexibility detection system and method of circuit board

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Embodiment Construction

[0024] The implementation manners of the present invention are described below through specific examples, and those skilled in the art can easily implement the content disclosed in this specification.

[0025] Such as figure 1 As shown, the present invention provides a circuit board flexible detection system, which includes: a host computer 1 and several detection modules 2, the detection module 2 includes a data acquisition unit 21 and a data transmission unit 22, and the data acquisition unit 21 is provided with several Probes that can automatically detect the output signal of the circuit board. Generally, the circuit board requires more data to be detected, such as various operating currents, driving currents, voltages, powers, and frequencies, but they can be classified into three categories: current , voltage, and frequency signals, all the above three types of signals can be converted into voltage signals, and the probe can be set as a voltage detection probe. The data ...

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Abstract

The invention provides a flexibility detection system of a circuit board. The flexibility detection system is connected with an upper computer and a detection module through an RS232 bus, automatically detects the circuit board through a detection module, can transmit a detection result to the upper computer to display in real time, and can simultaneously detect various circuit boards. By aiming to the difference of detection conversion time of the various circuit boards, the flexibility detection system puts forward a scheduling method of improving priority through classification inversion, automatically regulates the priority of occupied bus and reasonably allocates the time of the occupied bus. The flexibility detection system of the circuit board can realize the automatic detection on the circuit board, especially is suitable for low-cost detection of small-batch various circuit boards, can effectively improve the detection precision, reduces the labor intensity of workers, reduces the cost and the development difficulty of a system, and meets the requirements in modernization production.

Description

technical field [0001] The invention relates to a circuit board detection system, in particular to a flexible detection system and detection method for on-line detection of circuit boards. Background technique [0002] The performance of modern electronic equipment is not only affected by the quality and performance of the electronic components themselves, but also largely depends on the quality of the circuit board. Due to the influence of various environmental factors on the production site and the existence of various errors in the manufacturing process, various defects may occur in the manufacturing process of the circuit board. The inspection of the circuit board includes two levels, one is the factory inspection of the printed circuit board manufacturer, which is the basic inspection of appearance, on-off, etc.; the other inspection is to power on the circuit board after soldering the components. Inspection, that is, online inspection, circuit board online inspection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
Inventor 何金宝易新华廖远江骆再飞陈永杰周定勇
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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