Station-level safety monitoring protection system, fire detection alarm device and detection mechanism

The utility model discloses a station level safety monitoring protection system, a fire hazard detection alarm device and a detection mechanism, comprising a housing and a main control board arranged in the housing, a controller, a wireless transmitter, a temperature detection sensor, a smoke concentration detection sensor, a VOC concentration detection sensor and a CO concentration detection sensor are arranged on the main control board, and the temperature detection sensor, the smoke concentration detection sensor, the VOC concentration detection sensor and the CO concentration detection sensor are connected with the controller through wires. The controller is connected with the wireless transmitter through a wire, the wireless transmitter is used for being connected with an upper computer, and the pyroelectric particle concentration detection sensor is used for detecting the concentration of pyroelectric particles and is electrically connected with the controller through a wire. According to the utility mo