HUMAN SAFE GUARD & TRAFFIC SIGNAL CONTROL USING MEMS ACCELEROMETER, GPS & GSM PRESENTED BY T.AMSHALEKA (91710105004) T.PRIYADHARSHINI (91710105073) IV YEAR – EEE UNDER THE GUIDANCE OF Mrs.K.RADHA LAKSHMI.M.E.,(Ph.D)., ASST.PROF(Sr.GRADE)/EEE

ABSTRACT Human safe guard using MEMS Accelerometer and GPS tracking system is developed for accidental monitoring. In the event of accident, it was detected by wireless device and then it will send mobile phone short message indicating the position of people (who got accident) by GPS system to family members, ambulance and nearest hospital.

SYSTEM ANALYSIS EXISTING METHOD In existing method ambulance get blocked. Unwanted wanted message will be received. Ambulance can not reach on time. In proposed method

PROPOSED METHOD Including RF TRANSMITTER and RF RECEIVER. Easily clear the traffic using RF signals. Message will be obtained. The system is compact & easy to install under the rider seat.

COOPERATIVE COMPONENTS MEMS GPS GSM LCD MAX232 MICRO CONTROLLER

MICRO ELECTRO MECHANICAL SYSTEM(MEMS) MEMS Accelerometer is used to sense the vibration. It converts the measured mechanical signal into electrical signal. It consists of three axis X,Y,Z. When the vibration occurs the axis values will be changed. Its output is given to the microcontroller.

GLOBAL POSITIONING SYSTEM It is a space based satellite navigation system. It provide time and location details about the spot. It can provide information at any weather condition.

MICRO CONTROLLER (ATMEGA) ATMEGA 164v is a two way serial communication microcontroller. It will get the input from sensor and GPS,after processing gives the output to GSM. It has four ports. LCD display is connected to the third port.  

GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) It is a digital cellular technology. It is a TDMA based wireless network. It is mainly used for transmitting mobile voices and data services. Here it is used to transmit the short message.  

MAX232 It connects GSM modem and microcontroller. It converts TTL logic to RS232 logic. MAX 232 is a serial IC.  

BLOCK DIAGRAM

RF TRANSMITTER

RF RECEIVER

RF TRANSMITTER & RF RECEIVER RF transmitter propagates the electromagnetic signal. Before transmitting the signal will be encoded. Here the transmitter is placed in ambulance. RF receiver receives the encoded signal. After receiving the signal, decoder will retrieves the original signal. Here the receiver is placed in signal post.  

DRIVER CIRCUIT AND LED Driver circuit always controls the another circuit. Here it is used to control the LED. It will receives the RF signal from transmitter. LED is used to indicate the output.

DESIGN OF THE SYSTEM

RF TRANSMITTER CIRCUIT

RF RECEIVER CIRCUIT

HARD WARE DISCRIPTION

OUTPUT

RESULT Message will be received on the mobile. Traffic signal will be controlled. Ambulance will reach on time to the hospital.

CONCLUSION Thus the project we designed will play a major role in accident monitoring and traffic clearance. The absolute accidental spot will be traced out by GPS system and the message will be transferred through GSM. As the accurate location was predicted by GPS the ambulance will reach the spot without any distraction. Here we included RF signaling for traffic clearance and the ambulance will reach the hospital at time. By this the death rate can be reduced. This module can be used especially in highways, hilly regions etc.

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