With the development of our economy and the progress of the society, motor vehicles on the growing number of trunk road traffic flow is increased rapidly, more and more serious traffic jams the accidents, traffic safety, traffic management urgent need to realtime detection, highway traffic condition information. In this paper, according to the current aviation mature military realtime monitoring technology presents a civilian realtime monitoring system, key research vehicle identification technology through the analysis of the aviation technology mature, achieve the real time data collection, traffic information flow analysis, early warning and traffic jams, analyze the collected data and information release, it has a broad application prospect.