29-12-2012, 06:57 PM
AUTOMATIC AMBULANCE RESCUE SYSTEM
AUTOMATIC AMBULANCE RESCUE SYSTEM.pdf (Size: 274.88 KB / Downloads: 279)
Abstract
Traffic congestion and tidal flow management were rec-ognized 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 im-plement this we introduce a scheme called AARS (Automat-ic ambulance rescue system). The main theme behind this scheme is to provide a smooth flow for the ambulance to reach the hospitals in time and thus minifying the expiration. The idea behind this scheme is to implement a ITS which would control mechanically the traffic lights in the path of the ambulance. The ambulance is controlled by the central unit which furnishes the most scant route to the ambulance and also controls the traffic light according to the ambulance location and thus reaching the hospital safely. The server also determines the location of the accident spot through the sensor systems in the vehicle which encountered the acci-dent and thus the server walks through the ambulance to the spot. This scheme is fully automated, thus it finds the acci-dent spot, controls the traffic lights, helping to reach the hospital in time..
Introduction
There is loss of life due to the delay in the arrival of am-bulance 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 traf-fic signals in the path of the hospital are ON. Thus we pro-pose 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. Every traffic junction will have a controller controlling the traffic flow. The traffic junctions are referred to as nodes and each node will have a GSM modem con-nected to the controller. The nodes are controlled by a main server by sending the control messages to their GSM mod-ems. When a node is controlled and its traffic signal is made to be green for the ambulance to pass through without wait-ing, it is said to be in ON STATE. For easy access the server maintains a database for each node, and hence each node will have a unique id for addressing it and its GPS co-ordinates are also stored in the database. Thus using these data the ambulance is guided to the hospital by the server through the shortest route.
Vehicle Unit
According to our system, every vehicle should have a vehicle unit. The vehicle unit consists of a vibration sensor, controller, siren, a user interface, GPS system and a GSM module. The vibration sensor used in the vehicle will conti-nuously sense for any large scale vibration in the vehicle [1]. The sensed data is given to the controller.
Sending Coordinates to the Ambulance
The server will also find the nearest hospital and calculates the shortest path connecting the ambulance’s cur-rent location, the accident spot and the nearest hospital. The shortest path will contain nodes in the path. The server takes the GPS co-ordinates of all the nodes in the shortest path from the NODES database and along with GPS co-ordinates of the accident spot and the hospital; it transmits it to the ambulance unit in a format specified below.