Integrated Fault Diagnosis Targeting Reduced Simulation

Integrated fault diagnosis techniques attempt to overcome the limitations associated with static (pre-computed information usage) and dynamic (run-time analysis) techniques by using a limited amount of pre-computed information and coupling this with simulation at diagnosis time, for rapid fault diagnosis. A significant problem with previous integrated techniques is that the pre-computed information is not targeted specifically toward reducing the run-time costs. In this paper, we present a new approach to integrated fault diagnosis, by specifically creating the precomputed information to provide later savings in the simulation costs at diagnosis time. Experimental results on the ISCAS 85 and ISCAS 89 circuits illustrate the savings achieved by this technique. 1 Introduction Fault diagnosis techniques can be broadly classified into three groups. The first group, called static fault diagnosis, uses pre-computed information in the form of fault dictionaries for matching with the faulty r..