A Novel Approach to Implement Green Wave system and Detection of Stolen Vehicles Ayush Kr. Mittal and Deepika Bhandari Department of ECE Graphic Era University, Dehradun Uttarakhand, India ayusmittal@gmail.com, geudeepika18@gmail.com Abstract—In today’s world, traffic jams during rush hours is one of the major concerns. During rush hours, emergency vehicles like Ambulances, Police cars and Fire Brigade trucks get stuck in jams. Due to this, these emergency vehicles are not able to reach their destinations in time, resulting into a loss of human lives. We have developed a system which is used to provide clearance to any emergency vehicle by turning all the red lights to green on the path of the emergency vehicle, hence providing a complete green wave to the desired vehicle. A ‘green wave’ is the synchronization of the green phase of traffic signals. With a ‘green wave’ setup, a vehicle passing through a green signal will continue to receive green signals as it travels down the road. Around the world, green waves are used to great effect. Often criminal or terrorist vehicles have to be identified. In addition to the green wave path, the system will track a stolen vehicle when it passes through a traffic light. In contrast to any traditional vehicle tracking system, in which the Global Positioning System (GPS) module requires battery power, our tracking system, installed inside the vehicle, does not require any power. The information regarding the vehicle has to be updated in the system database. So, it is an autonomous 2-tier system which will help in the identification of emergency vehicles or any other desired vehicle. It is a novel system which can be used to implement the concept of the green wave. Keywords—Green wave, low cost, Emergency Vehicle Clearance, tracking, detection of stolen vehicles. I. INTRODUCTION The Green wave systems are most suitable to provide clearance to emergency vehicles during rush hours [1]. Many systems are used to implement the green wave systems. We have developed a cost effective system using Radio frequency identification (RFID) Technology [2][3],Global system for mobile communication (GSM) modules and latest high speed microcontrollers[4] to achieve the desired results. The primary objective is to identify the emergency vehicle and track its location so that we can provide a green wave to the emergency vehicle. Conventional technologies use image processing [5] systems to identify the emergency vehicle. But these systems have a drawback during bad weather conditions. Due to wind, rain, fog, etc., the image received by the camera is distorted by noise and it becomes difficult for the system to identify the desired vehicle. Thus, we have built our system using RFID transponders and readers. The advantage of RFID is that it is a cost effective system which will provide uninterrupted communication in our network even in bad weather conditions. II. SYSTEM STRUCTRE AND BLOCK DIAGRAM The basic block diagram of the system is illustrated in Fig.1. The system comprises of a RFID reader and a RFID tag or transponder. We will use a high frequency reader which will provide long range to the system. During the manufacturing of vehicles, passive tag or transponders [6] are embedded inside the dash board of the vehicle such that it is not easily visible to human eyes. During the registration of the vehicle, each vehicle gets a unique license plate number. In our system a database is maintained, in which table comprises of information like Unique ID of tag against which the vehicle license plate number and its category is stored. We have defined three categories for this system namely Emergency vehicle, Stolen Vehicle and a Normal Vehicle. A Column of priority is also added in table, in which three levels are defined: - low, high and highest. A priority “T” for stolen vehicles. However, as per the demand of the user, more levels and categories can be added easily. Readers are installed on every junction of the city, on top of the roads. The reader reads the unique ID present on the tag or transponder and sends the information to the main system to check its category and priority in the database and take the desired action accordingly. For immediate update of category of vehicle and also its priority level the database is connected to the GSM module. The RTO database is also connected to the main database, so that regular updating of the system database can be done. As soon as the vehicle is registered with Regional Transport office (R.T.O), the vehicle is registered with our system as well. The microcontroller unit is connected to the police control room, to send the alert signals of any stolen vehicle detected. 1055 978-1-4673-4529-3/12/$31.00 c 2012 IEEE