Motor vehicle tail gas wireless sensor network on-line detector

The utility model relates to an online detection device of vehicle tail gas wireless sensor network which could detect whether the vehicle tail gas discharge accords with the national standard real-time and online detection. The utility model includes a wireless local area communication network, a tail gas detection base station and a wireless sensor network node. The vehicle is arranged with a tail gas collection room, a solid state gas sensor, a data collection element, and a wireless sensor network node of a wireless signal transmission element. The tail gas detection base station includes a wireless signal receiving element, and a PC connected with the wireless signal receiving element. The wireless signal is sent to the tail gas detection base station by the wireless local area communication network. The tail gas detection base station could carry out data analysis treatment with computers, after receiving the wireless signal sent by the vehicles passing by with wireless transmission element address detection information, and could carry out mandatory long-distance and on-line detection on the tail gas discharged by the running vehicles, provide the environmental protection supervision department with long-distance monitoring measures, improve and control the urban air pollution status.