Schematic circuit diagram netlist comparison method

A technology of circuit schematic diagrams and schematic diagrams, which is applied to instruments, character and pattern recognition, computer components, etc., can solve problems such as risks, low efficiency, and long labor time, so as to improve design quality and efficiency, and facilitate use Effect

Inactive Publication Date: 2014-10-08
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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Problems solved by technology

[0005] At present, the process change and inspection of schematic diagram design are all through manual inspection, which is relatively easy for a few-page schematic diagram, but for multi-page schematic dia

Method used

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  • Schematic circuit diagram netlist comparison method

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Embodiment 1

[0028] A method for comparing netlists of circuit schematic diagrams in this embodiment is to calculate by extracting network node names and connected network names, component tag numbers, packaging information, etc. in the netlist of schematic diagrams, and can quickly and directly compare netlists The consistency of the connection of each network node and the connection of the component pins in the table, the consistency of the component number and package, and the difference between the components and the inconsistency of the connection, the inconsistent results are divided into different categories for output display and Can guarantee the accuracy of the results.

[0029] as attached figure 1 As shown, a method for comparing a circuit schematic netlist in this embodiment includes the following steps:

[0030] 1. Export the netlists of the two schematic diagrams before and after the circuit board revision;

[0031] 2. Extract the connection network name and node name data...

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Abstract

The invention relates to a schematic circuit diagram comparison method, in particular to a schematic circuit diagram netlist comparison method. According to the schematic circuit diagram netlist comparison method, by extracting network node names, the names of connected networks, component bit numbers, packaging information and other aspects in schematic diagram netlist, calculation is conducted, the consistency of connection of each network node, the consistency of connection of pins of each component, the consistency of the component bit numbers and the consistency of packaging in the netlists can be compared rapidly and directly, the difference between the components and the inconsistency of connection are represented, inconsistent results are classified into different classes and are output and displayed, and therefore the accuracy of a result is guaranteed. The schematic circuit diagram comparison method can be executed through software, use is convenient, and the quality and the efficiency of design of a schematic diagram of a circuit board are improved.

Description

technical field [0001] The invention relates to a method for comparing schematic diagrams of circuits, in particular to a method for comparing netlists of schematic diagrams of circuits. Background technique [0002] Schematic diagram design is the most important link in circuit board design. In the development of product solutions, the role of schematic diagrams is very important, and the check of schematic diagrams is also related to the quality and even life of the entire project. During the circuit board revision process, compare the changes in the schematic diagram before and after the revision. In order to ensure that the parts of the circuit board need to be modified before and after the revision, other parts must be consistent with the original board to ensure the quality of the circuit board. [0003] Secondly, since the extension of the schematic diagram of the circuit board will involve PCB Layout, that is, PCB wiring, of course, this kind of wiring is made based ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/64
Inventor 王慧秦清松郭洪振
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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