Forward and reverse current single-circuit detection device based on CAN network

The invention discloses a forward and reverse current single-circuit detection device based on a CAN, and belongs to the technical field of current detection of meters. The forward and reverse current single-circuit detection device based on the CAN is used for solving the problem that an existing meter state detection device cannot directly obtain a reverse current value output by a meter, so that difficulty of state detection of the meter is high. According to the forward and reverse current single-circuit detection device based on the CAN, an upper computer is used for sending control instructions or receiving a meter current detection signal which is finally obtained, a CAN extension interface module is used for communication between the upper computer and a single-chip microcomputer, the single-chip microcomputer is used for processing received signals, a TTL level conversion module is used for converting received TTL level signals, and a high-current high-and-low level output circuit is used for sampling voltage signals output by a meter to be detected, directly transmitting obtained sampling signals of the meter to be detected to the single-chip microcomputer, and outputting voltage regulation signals to the single-chip microcomputer. The forward and reverse current single-circuit detection device based on the CAN is used for forward and reverse current single-circuit detection of the meter.