Sonar detection device for three-dimensional space of mine gob

[0025] Such as figure 1 As shown, it includes control chassis, cables, high-precision stepping motor, high-sensitivity angle sensor and high-speed three-dimensional sonar sensor. Other components are controlled by the control cabinet through cables.

[0026] Include steps:

[0027] (1) The control box sends control commands to the angle sensor and sonar sensor through the cable, and the angle sensor rotates according to the received command (it can rotate 360°), while the sonar sensor emits sound signals and receives the reflected sound signal, and then transmit the received signal back to the control box through the cable;

[0028] (2) The control box filters the returned sound signal to obtain a real and useful signal, and the real signal is converted into image information after being processed by the distance measurement control software;

[0029] (3) After obtaining a plane image, control the chassis to adjust the height of the sonar sensor as required, and repeat step (2