Artificial intelligence and concept of step wise fault detection

A study is made of the concept of artificial intelligence and it is applied to the problem of fault diagnosis to a system which has been designed for t₀ fault diagnosis without repair on the basis of a PMC model. The author modifies the connection assignments of each unit of the system in such a way that after t₀ units in the system, the nonfaulty units of the system can diagnose t₁ additional faults where t₁ ⩽[t₀/2], and after t₁ faults the remaining nonfaulty units can diagnose t₂ additional faults where t₂⩽[t₁ /2], and so on. The process of additional fault diagnosis in a step-wise manner will function, and the process will stop when necessary and sufficient conditions for fault diagnosis are violated