How to change the speed limit on a speed detector?
• Initially the circuit will ask you to enter a speed limit value in km/h beyond which the circuit alerts, by pressing up (S1) and down (S2) you can change the number on the display and press set (S3), this value will be saved. • To change this speed limit, press button S4 and you can set a new speed limit.
What is the circuit of a speed checker?
Figure below shows the circuit of the speed checker. It has been designed assuming that the maximum permissible speed for highways is either 40 kmph or 60 kmph as per the traffic rule. The circuit is built around five NE555 timer ICs (IC1 through IC5), four CD4026 counter ICs (IC6 through IC9) and four 7-segment displays (DIS1 through DIS4).
How does a car speed detector circuit work?
Upload the code on the Arduino UNO. This project works on simple physics law of calculating the speed as distance/time. IR sensor is the main part of this project as it is used to detect when a car is passed through it. When a car passes the 1st IR sensor, it detects and sends an interrupt signal to the microcontroller.
How does speed check and overspeed detector work?
It detects the presence of over speeding vehicle and captures its image (image of the number plate) and sends it to drop box using cloud computing or as a mail to authority server. Keywords – Automated Overspeed detection, cloud computing, smart traffic monitoring, Automation, RF tech, IOT. 1. INTRODUCTION
The proposed circuit is kept stationary at a place where the vehicles are suspected to over-speed. If any vehicle goes beyond the speed limit, the circuit alerts immediately. We will be looking the code, circuit diagram and logic how the speed of the vehicle is measured.
Figure below shows the circuit of the speed checker. It has been designed assuming that the maximum permissible speed for highways is either 40 kmph or 60 kmph as per the traffic rule. The circuit is built around five NE555 timer ICs (IC1 through IC5), four CD4026 counter ICs (IC6 through IC9) and four 7-segment displays (DIS1 through DIS4).
• Initially the circuit will ask you to enter a speed limit value in km/h beyond which the circuit alerts, by pressing up (S1) and down (S2) you can change the number on the display and press set (S3), this value will be saved. • To change this speed limit, press button S4 and you can set a new speed limit.
How is Arduino used in a speed detector?
Our project is a little different from the system used by police but the overall car speed detector concept is same. In this project, two IR sensors are placed apart on one side of road. When any vehicle crosses the sensors, the internal timer of Arduino counts the time between activation of sensor.