Shield tunneling machine cutter wear detection device and state evaluation method

The invention discloses a shield tunneling machine cutter wear detection device and a state evaluation method, and relates to the technical field of data processing. The device comprises a controller, a plurality of data receivers and a plurality of rotating speed sensors; the rotating speed sensors are uniformly distributed on a cutter head of the shield tunneling machine; the rotating speed sensor is in communication connection with the data receiver through a Zigbee network; the controller and the data receiver are in communication connection through a Zigbee network. According to the device, the situation that the abrasion loss of the tool is judged through manual disassembly is avoided, the rotating speed information of the tool can be collected in real time, certain transformation is conducted through the rotating speed information, abrasion information of the tool is obtained, compared with direct measurement of the abrasion loss of the tool, the influence of the environment on rotating speed measureme