Facing the weak that the fault diagnosing way basing on signal process can’t good analyze the multi-faults taking place at the same time and the relatedness between multi-faults, the intelligent diagnosis based on fuzzy logic and ANN is researched in this paper. First, the basic theory of fuzzy logic and ANN is introduced. Second, it combines fuzzy logic with ANN and learning from others' strong points to offset one's weakness. The design thought, soft realization and key technology of the whole system are ...