Non-sensitive foundation pit overexcavation safety control device and control method

The invention relates to a non-sensitive foundation pit overexcavation safety control device and control method.The non-sensitive foundation pit overexcavation safety control device comprises overexcavation judging devices and high-definition camera shooting equipment, the overexcavation judging devices are fixed to batten plates of latticed columns at certain intervals, and each overexcavation judging device comprises a distance measuring assembly, a control assembly, a signal sending assembly and a first battery which are electrically connected; the control assembly can set an automatic irradiation frequency and an alarm value, and activates the signal sending assembly to send an alarm signal if the alarm value is exceeded; and the high-definition camera equipment is fixed above the foundation pit enclosure and can receive alarm signals within a certain range, capture photos in real time, synchronously capture the photos and upload the photos to a corresponding management and control APP on a mobile phone o