Abstract:
The daily life of people encounters more problems as the population continuously increases in urban areas, and road traffic becomes more congested because of high demand of cars and less level of road capacity and infrastructure. Such circumstances are making the Human life difficult and also endangering the life of people. Since the effects of these problems are significant in daily life, it is important to seek efficient solutions to reduce them. Vehicle speed detection is very important for observing speed limitation law and it also demonstrates traffic conditions. Many efforts have been done for vehicle speed detection. On frame difference Ferrier (1994) introduced speed detection, un-calibrated camera Pumrin and Dailey, 2002, motion trajectories Melo (2006), geometrical optics Jianping (2009) and digital images Fumio (2008) Wen and Fumio (2009) are introduced. Also Huei Yung and Kun Jhih (2004) used blurry images to find the vehicle speed. Pumrin and Dailey (2002) used motion of camera to detect the automated speed measurements. Shisong (2006) had advantage of offeature point tracking for the measurement of speed of vehicles. Vehicle speed detection or surveillance now a days is obtained using radar technology, particularly, radar detector and radar gun. The speed detection system may consist of any of the above mentioned methods. The basic theme behind these methods is that the moving vehicle will be struck by two waves at different time intervals in a pre-defined span of distance. These waves will collide and reflect back at different time. The difference in the reading of these thrown waves will be used to measure the distance and the speed will be calculated through it. The readings obtained will be fed to a PIC microcontroller that will be programmed to measure the speed from the inputs.
