Bidirectional switch matrix and related circuit breaker state detection device

The invention relates to a bidirectional switch matrix and a related circuit breaker state detection device. The bidirectional switch matrix comprises m rows and m columns of conductive wires, m is an integer greater than 1, one end of two ends of each conductive wire is used as an input end for accessing excitation voltage, the other end of the two ends of each conductive wire is used as an output end, and for the ith row of conductive wires in the m rows of conductive wires, m is an integer greater than 1. Wherein i is an integer greater than 1 and less than or equal to m: short-circuited with the i-th column of conductive lines through a metal line; two parallel switching circuits which are in one-way conduction and are opposite in conduction direction are connected to other columns of conductive wires except for the ith column of conductive wires, and each switching circuit comprises a one-way conduction device and a circuit breaker auxiliary contact of a respective associated circuit breaker. The one-way