15-11-2017, 10:46 AM
When driving on roads drivers must not exceed the maximum speed limit allowed for their vehicle. However, accidents continue to occur due to speed violations as drivers follow their speedometers and control their speed accordingly, and reduce speed if they find that it is exceeding and beyond their control. A highway speed tester is useful for traffic police, especially against speed limit violators, as it provides a digital display and a buzzer or alarm to detect any vehicle speed if the vehicle exceeds the speed limit allowed.
Today in our daily lives, most accidents occur due to reckless driving on the roads, which can cause the loss of many lives. Therefore, to overcome this problem, the following project implements a speed tester to detect reckless driving on the roads by using a timer.
The main objective of this system is to develop a speed control device on the road that detects violent driving on roads and warnings, and traffic authorities if the speed inspector finds that any vehicle violates the speed limits set on the roads .
![[Image: speed-checker-using-timer-300x212.jpg]](https://www.elprocus.com/wp-content/uploads/2014/07/speed-checker-using-timer-300x212.jpg)
The proposed system verifies reckless driving by calculating the speed of a vehicle using the time necessary to travel between the two points established on the road at a certain distance. A set point consists of a pair of sensors that comprise an IR transmitter and an IR receiver, which are placed on both sides of the road. The speed limit is set by the police who use the system depending on traffic at each location.
The time it takes the vehicle to travel from one set point to the other is calculated by the control circuit. Depending on the time elapsed between the two sensors, the control circuit calculates the speed and displays the result on a seven-segment display. If a vehicle exceeds the speed limit between the transmitter and receiver, this system beeps like an alarm and alerts the police.
