Miniature pile foundation pit supporting and monitoring device and using method thereof

The invention provides a micro pile foundation pit supporting monitoring device and a using method thereof, and belongs to the technical field of foundation pit supporting, the micro pile foundation pit supporting monitoring device comprises a base, a box body, a controller, a data monitor, a first double-lug hinge shaft and a telescopic supporting mechanism, the box body is arranged on the upper side of the base; the controller is arranged in the box body and is in telecommunication connection with a wireless module and a gyroscope module; the data monitor is in telecommunication connection with the controller; the four first double-lug hinge shafts are fixedly connected to the periphery of the box body, one sides of the axes of the first double-lug hinge shafts are fixedly connected with angle sensors, the sides, away from the box body, of the first double-lug hinge shafts are fixedly connected with telescopic displacement sensors, and the angle sensors and the telescopic displacement sensors are both in te