基于区域填充算法的PCB网络提取

Obtaining nets of PCB based on area filling algorithm

随着电子技术的迅速发展,用于PCB行业的设备与技术也突飞猛进。飞针测试机作为判定PCB板的电气连接是否良好的PCB检测设备,可以准确无误地检测出PCB板上各点之间的开短路情况,从而发现PCB板上出现开短路错误的位置。而要对PCB板的物理通断进行电气测量,首先必须知道PCB板正确的物理连接(即PCB的网络分布)情况。文章将主要讲述如何利用一种图形区域填充的算法,从用于绘制PCB板的GERBER文件中获取PCB板的正确网络分布。

As a consequence of the fast development of electronic technology, the equipments and techniques used in PCB industry are advancing rapidly. Fly Probe Tester, which is an equipment used to test the electrical connection ofa PCB, can make sure that any two points in PCB are connected or disconnected. So it can find out the points, the electrical connections of which are incorrect. However, it is necessary to obtain the correct physical connections of the PCB （the correct net distributing of PCB） before testing it. An area filling algorithm was introduced. By this algorithm, the correct net distributing of PCB from the gerber files was obfained that were used to describe PCB.