Screw fastening work management system, screw fastening work quality judgment device and screw fastening work quality judgment method

摘要

PROBLEM TO BE SOLVED: To reliably determine that a screw tightening operation has been performed from a sound generated at the time of screw tightening without being affected by ambient noise. According to one aspect of the present invention, acceleration data indicating the acceleration of a designated tool during screw fastening work and sound data indicating sound generated by the designated tool during screw fastening work are acquired, and sound is obtained based on the acceleration data. The sound to be analyzed is extracted from the data, and the quality of the screw fastening work is judged based on the frequency included in the sound to be analyzed. [Selection diagram] Fig. 6