Code switching-based acquisition and transmission circuit fault detection method, module and application

The invention relates to an acquisition and transmission circuit fault detection method and module based on code switching and application, and the method comprises the steps: setting a data acquisition and transmission circuit, storing at least two codes, and calling the codes in different operation states of the circuit; the module comprises a data acquisition and transmission circuit and a switch, at least two independent storage spaces with corresponding codes are arranged through a storage unit of a main control unit, power supply information is acquired through a signal acquisition unit and reported through the main control unit, different codes are triggered by a channel selection unit based on external level, and corresponding channels are fed back and switched through the main control unit. The storage space is matched with the switch; the method is applied to power supply information data acquisition of ship towed linear array receiving array sonar. Whether the signal acquisition and transmission ci