Industry door impact detecting method, involves disconnecting activating unit of door by intensity measuring device, when received signal intensity value is greater than fixed value

摘要

The method involves mounting a curtain or clapper in a door. A stiffening unit equipped with a piezoelectric unit is susceptible to transmit an electric signal according to a mechanical distortion. The signal is received by an intensity measuring device for measuring a signal intensity. An activating unit of the door is disconnected by the device, when the intensity value is greater than a fixed value.