08-17-2017, 12:34 AM
PRESENTED BY:
ADARSH BAJPAI
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HIGHWAY SPEED SENSING AND AUTOMATIC BREAKING SYSTEM
INTRODUCTION
It will consist of a transmitter and a receiver system . Receiver will be kept in the vehicles and transmitters would be installed on the road. It will not use any speed sensing device, instead four switches. Which could be operated by traffic Cops, limit 80, limit40,limit20 and no horn area, are provided . when ever these switches are pressed, they will transmit the corresponding alert message to the driver .
Receiver section will have an 2X16 lcd, which will display the alert message ,and a relay circuit having three relays. One relay to sound alarm to driver. One relay for the auto breaking circuit . and one relay to disable horn in the no horn area
BLOCK DIAGRAM OF TRANSMITTER
DESCRIPTION
TRANSMITTER:
Transmitter consists of a microcontroller and 433mhz transmitter module .capacitor c1 and r2 gives the reset pulse to microcontroller reset pinX1 along with two 33 pf capacitor gives required the clock pulse to microcontroller.
BLOCK DIAGRAM OF RECEIVER
DESCRIPTION
RECEIVER:
Receiver consists of a microcontroller and 2 16 lcd device for display purpose. Capacitor c3 and r2 gives the required reset pulse to the reset pin1 of the microcontroller. Alternatively a reset switch is also provided to manually reset the microcontroller. Capacitor c4,c5 along with the crystal gives the clock pulses to microcontroller ,this serially received data is displayed on the lcd.
Alarm switch connected to p1.0 pin 13 will Data transmitted from the transmitter is received by the 433mhz receiver and output from this receiver is connected to pin 2 of the microcontroller .This serially received data is displayed on the lcd. Alarm switch connected to p1.0 pin 13 will switch off the alarm relay. Pin7,8&9 of the microcontroller controls the operation of the relay.
APPLICATIONS
Every year ,we find more and more road accidents due to increased traffic on the roads, and if you see the statistics ,you will find that the causalities are more every year than that of 1970 Indo -Pak war. Experts says, increased motorist population, long working hours, stressful life, are the major cause. The factors are beyond one s control , but if we could alert the driver on the highway, could save the many prescious lives.
