Abstract: With intelligent transportation system as the background， a navigation and control system of wheeled car was designed and implemented on the basis of the electromagnetic effect. The model cars would run in a microtrafficnetwork environment. According to the real geometry parameters of the sandtable， feasible route for the cars was built and the directionturning strategy of intersect junction with RFID tags was designed. Multiple conceptual models could run along with the designated path correctly. Theoretical analysis was proposed for electromagnetic navigation line. System architecture and sensors layout were introduced in details as well as the judgment of car’s deviation， including distance and direction. Experimental test showed that the proposed navigation and control system can work stably and lead the wheeled car run correctly in complex route net.

Key words: wheeled intelligent car, path recognition, electromagnetic effect, directionturning control, RFID (radio frequency identification)