The wireless sensor network is an imminent technology and has great potential to be employed in critical situations. The development of wireless sensor networks was originally motivated by military applications such as battlefield surveillance. Wireless Sensor Networks are used in different areas such as Civil, Health, Industrial, Habitat Surveillance, Environmental, Military, Home and Office. The detection and tracking of targets (eg animals, vehicles) as they move through a sensor network has become an increasingly important application. This project deals with the classification of vehicles and the measurement of speed using IR technology. Vehicle classification is performed according to the length of the object (eg, Vehicle). When a heavy vehicle is detected, it is not allowed to turn right if you turn right and then the sensor indicates that the vehicle has entered a restricted area. The device is interconnected with the ARM microcontroller and Keil's uvision4 software is used. Modeling can be done with other programs.
Following video is better to understand the Infrared ray sensor based Vehicle Speed checker and over speed detector :