Vacuum bin multi-point transmission fault detection system and method based on pickup matrix

The invention relates to a pickup matrix-based vacuum bin multi-point transmission fault detection system and method for a valve, and aims to solve the technical problems of poor systematicness, tedious operation and high inspection difficulty of existing valve fault judgment. The system comprises a sound conducting vacuum tube which comprises a cylindrical shell and a sound transmission core arranged in the shell; a plurality of groups of sound insulation layers and sound transmission layers are arranged on the sound mapping plate; the sound conducting vacuum tube is connected with the detection point of the valve to be detected and the sound transmission layer on the sound mapping plate; the pickup matrix is arranged in the vacuum chamber and used for receiving sound signals. The method comprises the following steps: 1, determining a fault judgment standard; 2, real-time detection is carried out by adopting a pickup matrix-based vacuum bin multi-point transmission fault detection system; and 3, judging whet