Auxiliary fault detection system and method

Abstract

The invention relates to an auxiliary fault detection system and a method which are applied in a production information system for assisting the fault detection operation of a circuit board, the auxiliary fault detection system comprises a detection module for detecting identifying information of the circuit board, detecting the circuit board in the fault detection operation and sending corresponding fault code information and fault position information, a database for storing the fault code information and the corresponding fault position information detected in the fault detection operation and storing the identifying information of the circuit board, an extraction module for extracting the fault code information corresponding to the circuit board from the production information system according to the detected identifying information, an inquiry module for extracting the corresponding fault position information from the database according to the fault code information, and a calculation module for calculating the respective proportion of each fault position contained in the fault position information according to the fault position information for reference.

Description

technical field [0001] The present invention relates to an auxiliary fault detection system and method, more specifically, the auxiliary fault detection system and method applied to a production information system to assist fault detection operations of circuit boards. Background technique [0002] With the rapid development of electronic technology, in order to meet the increasingly large functional requirements of current electronic products, such as mobile phones, notebook computers, PDAs, etc., the design and structure of the internal circuit board (PCB) of electronic products are becoming more and more complex. The most common , such as 6 or 8-layer motherboard (MainBoard; MB) and so on. [0003] Therefore, when the internal circuit of this type of electronic product breaks down, a large number of detections are required to determine the fault point that caused the fault. In the past, the judgment of the fault point was completed by the experience of the maintenance per...

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Problems solved by technology

[0003] Therefore, when the internal circuit of this type of electronic product breaks down, a large number of detections are required to determine the fault point that caused the fault. In the past, the judgment of the fault point was completed by the experience of the maintenance personnel, and the maintenance personnel themselves Therefore, for some new recruits, it is extremely slow to get started, which greatly reduces work efficiency and delays work progress. Moreover, due to the actual operation type of work, training is also very difficult, which increases the The cost of training is not conducive to the benefit of the enterprise

[0004] Furthermore, the test results after each overhaul cannot be well managed to achieve the purpose of experience sharing or repeated use. As a result, the next time when a different version of a fault point with a similar fault is detected, the same fault point may still be carried out from beginning to end. Inspection operations, repeated actions, waste of working time, low efficiency, and the emergence of such adverse situations may be even more unavoidable among different maintenance personnel

[0005] In addition, during the fault detection process, due to the large number of electronic components on the circuit board, the actual standard value and the design value of the electrical value of each component will deviate, so the maintenance personnel generally need to measure the quality of the good board before repairing a defective board. The electrical value (voltage / diode / frequency, etc.) is used as a standard for comparison, resulting in low work efficiency and serious waste of time

[0006] Although modern enterprises all adopt an automated and scientific management model, some more convenient management software such as the Factory Information System (FIS) can be used to store various production information, such as the material number of the raw material used for the circuit board, the circuit Board fault codes, etc., and can detect the circuit board through some test programs, and output some fault codes when a fault occurs, but so far, it only exists as a tool for storing and managing information, and It is a pity that it does not have the intelligent function that can provide guidance or prompt information to the fault maintenance personnel according to the actual situation, resulting in a great waste of information resources, and cannot change the current situation of the backward working method of fault detection based on experience only

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