Manhole cover intelligent monitor

The utility model discloses an intelligent monitor for an inspection well cover in the technical field of road inspection well monitoring. Comprising a sleeve, a U-shaped block, an arc-shaped block, a photoelectric sensor, a liquid level sensor, a micro low-speed motor, an infrared camera, a tilt angle sensor, a position coordinate sensor, an information acquisition module, an information processing module, an MCU, an LPWAN wireless signal receiving and transmitting module, an LPWAN wireless signal base station gateway and an upper computer management server, and when a well lid sinks, the photoelectric sensor is triggered to work; when the well lid moves or is opened abnormally, the tilt angle sensor is triggered to work. When sewage overflows, the water level sensor is triggered to work; the miniature low-speed motor can drive the infrared camera to rotate, then images of the back face of the well lid are obtained, whether cracks exist on the surface of the well lid or not can be detected through the images