International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 05 | May-2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 6.171 | ISO 9001:2008 Certified Journal | Page 816 VANET based wireless sensor network using zigbee technology Rashmi R. Chaudhari 1 , Dr. N. K. Choudhari 2 , Ms. P. V. Gawande 3 1 PG Student, ECE, PBCOE, Nagpur, Maharashtra, India 2 Professor, ECE, PBCOE, Nagpur, Maharashtra, India 3 Assistant professor, ECE, PBCOE, Nagpur, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - In this project we focus on the problems related to a particular scenario and try to find out the solutions using Zigbee module. We present a generalize flow for combining various aspects into a single solutions and making future developments in this field. On the other hand reducing contention and maximizing the total network throughput is the most important aspects to be focused on in accident prone areas Zigbee is the latest technology which can be used to establish a temporary network for communication between the vehicles. We can also apply the intra communication system among the vehicles using Zigbee Technology. It is well known that the security of our vehicle plays a vital role in vehicle to vehicle adhoc network. Zigbee is the most flourishing wireless communication technology which supports low cost , low power, short range and low maintenance wireless communication. Due to drastically changing environment, various schemes are required which allow adhoc networking of predetermined devices Key Words: VANET, Zigbee, WSN 1. INTRODUCTION Vehicular adhoc network- (VANETs) have become a prominent technology for improving the standard of the safety levels in transportation schemes. VANETs consist of roadside units vehicle to vehicle communication nodes that respectively allow vehicles to transmit signals via establishing a temporary network in emergency cases like road accidents, landslides etc. Due to wireless communication it is possible for vehicles to communicate to zigbee so that large range of area can be covered as per requirements. Here, spontaneous message generation through ultra sonic sensor, message authentication and message integrity is also maintained throughout the communication process. Ultra Sonic sensors are implanted on the vehicles through which the message transmission becomes serially aligned. Hence VANETs cannot totally depend on short life time strategies ,as a malicious vehicle can harm other vehicles until its strategic life time expires .Thus efficient coordination becomes the most important parameter in message generation and transmission in that particular order. For a practical demonstration method it is required that the allocation of misbehaving vehicles should take place as early as possible to prevent this vehicles from accidents. According to vehicular ad hoc network, it will completely rely on the public key maintenance as a perfect method to achieve these security requirements. A central authority issues and authentic certificate for each node used in communication through Zigbee. Following are the most important situations which come into picture through (V2V) communication using Zigbee :- 1) If obstacle is detected in front of our ultrasonic sensor-It will detect the obstacle upto(6ft/180cms) and if distance is less than 50cm even if input is given to the transmitter remote the car will not start. 2) If there is collision ahead on the highway-This information will be received by our car and our car will automatically stop. 1.1 Congestion of Vehicles As the number of vehicles will increases on the road with the current constant speed then that day is near when foot passenger will reach their target soon compare to vehicle holder. When many numbers of vehicle are gather at signal or any jam (due to any accident or any other reason) then the congestion occur. But the question is how this number of vehicle gathers at the place and increases the capacity of congestion. The answer is Dz when the accident occur there are very few numbers of vehicle but the other vehicle holder who have no information about the condition are choose that way and increases the gathering of vehicles on road & this all process take the result Dz Congestion of vehicles" For this reason, nowadays the automotive industry and governments invest many resources to increase road safety and traffic efficiency, as well as to reduce the impact of transportation on the environment. One of the most promising areas of research is the study of the communications among vehicles and road-side units, or more specifically the Vehicular Ad-hoc Networks (VANETs). 2. LITERATURE SURVEY VANET is an autonomous & completely self-organizing wireless communication network. In this network the cars are called dynamic nodes and Infrastructure is called Static node which involve themselves as servers and/or clients for exchanging & sharing information. Various researchers are working on VANET to find the solution for current traffic congestion problem. Many methods are used to reduce the traffic congestions detection and management using VANET.