Optimum Path Searching Algorithm for ATE Switch Matrix

CHEN Yuqiang; SU Jian; ZHANG Lei; YANG Guozhen

doi:10.3981/j.issn.1000-7857.2014.15.004

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Science & Technology Review ›› 2014, Vol. 32 ›› Issue (15) : 37-42. DOI: 10.3981/j.issn.1000-7857.2014.15.004

Articles

Optimum Path Searching Algorithm for ATE Switch Matrix

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Department of Control Engineering, Academy of Armored Force Engineering, Beijing 100072, China

Abstract

As a signal transfer hub, switch matrix plays an extremely important role in the automatic test equipment (ATE). When the distance between the source node and destination node is the shortest, signals can be transmitted in a most efficient way. First, a physical model of switch matrix is presented. Then a mathematical model is constructed by using graph theory. In view of the least relay and highest reliability, the problem is considered as a shortest path search in un-weighted graph and weighted graph. These two graphs arestudied by BFS algorithm and Dijkstra algorithm, and the improvedalgorithm is put forward. An actual example shows how to build the model and find the optimum path. The improved algorithm could realize rapid automatic searchfor the optimum path, thus has potential applicationsin development of general adapters and design of software platform in ATE.

Key words

switch matrix / path search / BFS algorithm / Dijkstra algorithm

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CHEN Yuqiang, SU Jian, ZHANG Lei, YANG Guozhen. Optimum Path Searching Algorithm for ATE Switch Matrix[J]. Science & Technology Review, 2014, 32(15): 37-42 https://doi.org/10.3981/j.issn.1000-7857.2014.15.004

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