Fault diagnosis strategy design of electronic equipment based on multivalue test

作者：Wang Chenggang^*; Liu Zhiyuan; Yang Zhi Yong

来源：Acta Armamentarii, 2011, 32(10): 1287-1291.

• Automatic control technique
• Dependency matrix
• Diagnosis strategy
• Electronic equipment
• Multivalue test
• Testability analysis

For complex electronic equipment, the practical test output may be variform when it fails. A great deal of information would be ignored if a binary test is applied, and the test precision and efficiency would also be decreased. A heuristic function based on Huffman coding with r elements was constructed, and a fault diagnosis strategy design algorithm based on multivalue test was put forward. The multivalue outputs were taken as the independent signals, and then a fault diagnosis strategy design algorithm based on dependency matrix extension was presented. Finally, an example shows that the fault isolation precision is improved and the algorithm is effective. It offers an efficient algorithm to the diagnosis strategy design of complex electronic equipment.

• 出版日期2011
• 单位北京理工大学