Submitted By,A.Sachin Kumar

N.PrakashRohit Mishra

Guided by - Mr. Likith Kumar. C

Traffic congestion and tidal flow management were recognized as major problems in modern urban areas, which have caused much thwarting for the ambulance.

Moreover road accidents in the city have been incessant and to bar the loss of life due to the accidents is even more crucial.

To implement this we introduce a scheme called AARS (Automatic ambulance rescue system).

The main theme behind this scheme is to detect the accident vehicle by using a sensor circuit embedded with a WSN connected to nearest emergency care and to provide a smooth flow for the ambulance to reach the accident spot in time and thus minifying the expiration.

The idea behind this scheme is to implement an intelligent system which would control mechanically the traffic lights in the path of the ambulance.

The RF wireless acts as a communicator between the ambulance and the traffic lights and also according to the ambulance location and thus reaching the spot quickly.

The server also determines the location of the accident spot through the sensor systems in the vehicle which encountered the accident and thus the server walks through the ambulance to the spot.

This scheme is fully automated, thus it finds the accident spot, controls the traffic lights, helping to reach the hospital in time.

Our system consists of four main units, which coordinates with each other and makes sure that ambulance reaches the hospital without any time lag. Thus our system is divided into following four units,

Vehicle UnitMain ServerAmbulance UnitTraffic Junction Unit

Embedded system comprises of both hardware and software. Embedded system is fast growing technology in various fields like industrial automation, home appliances, automobiles, aeronautics etc.,

Embedded technology uses PC or a controller to do the specified task and the programming is done using assembly language programming or embedded C.

Modern embedded digital world will innovative the entire domain such like automobiles, industrial automation, RFID, energy meter and especially biomedical.

Power supply is a reference to a source of electrical power.

A device or system that supplies electrical or other types of energy to an output load or group of loads is called a power supply unit or PSU.

The term is most commonly applied to electrical energy supplies, less often to mechanical ones, and rarely to others.

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry standard 80C51 instruction set and pin out.

The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

GPS stands for Global Positioning System by which anyone can always obtain the position information anywhere in the world.

The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver.

GSM (Global System for Mobile communication) is a digital mobile telephony system that is widely used in Europe and other parts of the world.

GSM uses a variation of time division multiple access (TDMA) and is the most widely used of the three digital wireless telephony technologies (TDMA, GSM, and CDMA).

GSM digitizes and compresses data, then sends it down a channel with two other streams of user data, each in its own time slot. It operates at either the 900 MHz or 1800 MHz frequency band.

Vibration sensors are utilized in a number of applications to measure acceleration and/or vibration activity.

Vibration or shock sensors are commonly used in alarm systems to activate an alarm whenever the devices to which they are attached are touched, moved, or otherwise vibrated.

For example, vibration sensors are commonly placed in windows of buildings to sense glass breakage and in car alarm systems to detect vehicle tampering.

A universal asynchronous receiver/transmitter is a type of "asynchronous receiver/transmitter", a piece of computer hardware that translates data between parallel and serial forms. UARTs are commonly used in conjunction with other communication standards such as EIA RS-232.

The MAX232 is an integrated circuit that converts signals from an RS-232 serial port to signals suitable for use in TTL compatible digital logic circuits. The MAX232 is a dual driver/receiver and typically converts the RX, TX, CTS and RTS signals.

Microcontroller UnitPower Supply UnitGPS ReceiverAccident DetectorGSM ModemUARTRF Transmitter and

ReceiverEncoder and DecoderTraffic Signal ControllerGreen and Red Lights

Embedded C Programming

KEIL Cross Compiler

There is loss of life due to the delay in the arrival of ambulance to the hospital in the golden hour. This delay is mainly caused by the waiting of the ambulance in the traffic signals.

It would be of great use to the ambulance if the traffic signals in the path of the hospital are ON.

Thus we propose a new design for automatically controlling the traffic signals and achieving the above mentioned task so that the ambulance would be able to cross all the traffic junctions without waiting.

With this system the ambulance can be maneuvered from the accident spot to the hospital without time lag.

The AARS can be proved to be effectual to control not only ambulance but also authoritative vehicles.

Thus AARS if implemented in countries with large population like INDIA can produce better results.

The AARS is more accurate with no loss of time.

Mainly used for Ambulance vehicles;Fire Engines; andOther Life Saving Emergency Vehicles.

[1]. Wang Wei, Fan Hanbo, Traffic Accident Automatic Detection and Remote Alarm Device

[2]. Zhaosheng Yang. Study on the schemes of traffic signal timing for Priority Vehicles Based on Navigation System, 2000.

[3]. Xiaolin Lu, Develop Web GIS Based Intelligent Transportation Application Systems with Web Service Technology, Proceedings of International Conference on ITS Telecommunications, 2006.

[4]. Katsunori Tawara, Naoto Mukai, Traffic Signal Control by using Traffic Congestion Prediction based on Pheromone Model, Proceedings of 22nd International Conference on Tools with Artificial Intelligence, 2010.