In the kit speed testing system on highways driving on highway motorist should not exceed maximum speed limit permitted for their vehicle. However accidents keep occurring due to the speed violation since the drivers tends to ignore their speedometer. The speed checker will come for the highway traffic police as it will only provide digital display in accordance with a vehicle speed but also sound an alarm if the vehicle exceeds the permissible speed for highway.
In the kit speed testing system on highways two sensors based on IR are there to detect the speed of the vehicle. The data from the IR sensors are first converted into digital and then sent to the microcontroller. The controller measure speed based on the time difference between the cut of the two sensors as the distance between them is fixed. A dot matrix LCD is there to detect display the speed. A buzzer is connected with the microcontroller to trigger the alarm in case of over speed. GSM modem is also there connected with microcontroller to send the SMS to the authorized person in case of speed violation.
BLOCK DIAGRAM OF SPEED TESTING SYSTEM ON HIGHWAYS