Wiring automatic check system and method

Abstract

The invention provides a wiring automatic check system. The wiring automatic check system is applied to a calculation device. Component names are screened out from a printed circuit board (PCB) wiring diagram file through inputted keywords of names and are displayed in a first list. The periphery frame of the chosen components in the first list is calculated, according to the periphery frame and presupposed check range distance D, a search range is calculated. All signal lines which are in the PCB wiring diagram file and have intersection with the search range are searched. The fundamental information of the signal lines which have intersection with the search range is displayed in a second list. The invention further provides a wiring automatic check method. With the wiring automatic check system and the method, the signal lines which are disturbed by high noise components can be screened out quickly and accurately.

Description

technical field [0001] The invention relates to a circuit inspection system and method, in particular to an automatic wiring inspection system and method. Background technique [0002] Generally, a PCB (Printed Circuit Board, printed circuit board) includes a component layer and a wiring layer. Wherein, the component layer is located at the surface layer, and the wiring layer is located at the inner layer. As today's PCB wiring density is getting higher and higher, the problem of surface layer components interfering with inner layer wiring is becoming more and more serious. Especially high noise components, such as electromagnetic interference of power regulators, quartz oscillators, time pulse generators, etc. When the high-noise components on the surface are switched, the electromagnetic interference will directly affect the signal lines on the inner layer (such as Figure 1A shown). Signal lines, especially high-speed signal lines, once placed under high-noise componen...

AI Technical Summary

Problems solved by technology

Signal lines, especially high-speed signal lines, once placed under high-noise components, are subject to electromagnetic interference from high-noise components, which can easily cause signal interpretation errors (such as Figure 1B shown)

[0003] At present, there is no reliable inspection software available to check out the signal lines that may be interfered by high-noise components, and the PCB layout must be checked one by one manually

Due to the huge number of wiring on the circuit board, manual operation is not only time-consuming and laborious, but also prone to omissions and errors due to the negligence of designers

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