Optimal Sensor Location and Observation Policy under Constraint in Detecting Anomalous Lump Objects in Shield Construction Method

摘要

Using acoustic sensors, the authors previously proposed an effective detection system of anomalous objects in tunnel excavation with shield tunneling machines to prevent the machine from getting damages. Not many observation data being available in the detection, optimal observation policy is important. From this viewpoint, the authors next considered an optimal sensor location on the current plane of the machine and also the optimal observation policy, for the case where three receiving transducers were used to detect lump objects.