Fire hazard grading early warning network system router based on wireless sensor network

The utility model relates to a fire hazard grading early warning network system router based on a wireless sensor network. The router includes a wireless sensor network unit and sensors. Wireless data channels among the routers and between the routers and coordinators are built by the wireless sensor network units. The router includes a voltage conversion circuit which provides the working voltages for the sensors of various types. The router receives real-time signals collected by the sensors, processes environment signals collected by the sensors into the early warning data, compares the early warning data with the built-in fire alarm predication grading parameter to generate an early warning signal, transmits a control signal to a controlled device, transmits the early warning data and the early warning data of other routers which are connected with the router to the coordinator, receives the fire alarm prediction grading parameter transmitted by the coordinator, and transmits the fire alarm prediction gra