This document describes an automatic speed control system for vehicles that uses an RF transmitter to set a maximum speed limit. The system aims to reduce reckless driving and accidents by limiting vehicle speed based on the location, such as near schools or in dangerous areas. It works by using RFID tags on road signs that are detected by an RF receiver in the vehicle, which then controls the vehicle speed via a microcontroller not to exceed the set limit for that area. The goal is to enhance safety by preventing excessive speeding through automated controls.

1. Submitted by:
Atul Rana
Deepak
Vikrant verma

2.  In this project we show that how we control the speed of any car up
to set value. Once the upper limit is set then its not possible to
increase the speed of vehicle. THIS SET VALUE IS PROVIDED BY RF
TRANSMITTER.
 Most of the fatal or serious accidents are associated with excessive
or inappropriate speed.
 Safety will be achieved by automatic driving controls and a growing
number of sensors both on the road infrastructure and the vehicle
itself.
 The key idea offered is to use Radio Frequency Identification(RFID)
technology to tag the warning signals placed in the dangerous
portions of the road.
 This Automatic Speed Control System in 4 Wheelers for Avoiding
Rash Driving a system by using sensors and electronic components,
to avoid rash driving and to prevent loosing of valuable property .

3. Microcontroller
Bridge Rectifier
Vehicle
RF Transmitter
RF Receiver
LCD to display the status of Vehicle and alert
about the ZONE.
Power Supply
ADC

4. 12/13/10

5. 12/13/10

6. The system designed in this project can
reduce rash driving and accidents up to
somewhat and thus can save many lives and
many valuable properties. Rash driving
within cities, within the regions of school
zones, villages that are near to the high ways
and beside the high ways can be prevented
using this system. This system is cost
effective, as it does not use sensors and
electronic components, but instead uses
simple mechanical system.