Tunnel drainage ditch cover plate pneumatic load monitoring and early warning device

The utility model discloses a pneumatic load monitoring and early warning device for a tunnel drainage ditch cover plate, which aims to solve the problem that manpower resource cost is relatively consumed in the existing mode of manually inspecting whether the drainage ditch cover plate is opened or not, and comprises a first air pressure sensor, a second air pressure sensor, a processor, an early warning module and an early warning device, the first air pressure sensor is mounted on the upper plate surface of the drainage ditch cover plate; the second air pressure sensor is mounted on the lower plate surface of the drainage ditch cover plate; the first barometric sensor and the second barometric sensor are respectively connected with the processor and are used for calculating barometric difference fed back by the first barometric sensor and the second barometric sensor; the early warning module is connected with the processor to generate an early warning instruction according to an operation result of the pr