Design of a Fault Diagnosis System for the “JiaoLong” Deep-sea Manned Vehicle

With the increasing number of deep-sea manned submersibles being on service, fault diagnosis for their control systems has become an indispensable task. Current hardware solutions of fault diagnosis are usually designed for a specific category of devices, which would lead to huge manual and economic costs when applied to deep-sea submersibles composed of subsystems varying in interface. In order to avoid the difficulties, a wireless-based fault diagnosis hardware solution is proposed which is applicable for systems with different electrical features. Moreover, it provides several functions including fault diagnosis, simulation of fault injection and direct control of actuators, and it not only possesses scalability for further analysis of target system but also expandability for applications besides deep-sea submersibles.