International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Emergency Navigation in Rescue with Wireless Sensor Networks Soundarya.S1, Ramya.A.T2, R.K.Kapila vani3 1Student,
Department of Computer Science and Engineering, Prince Shri Venkateshwara Padmavathy Engineering College,Tamil Nadu , India. 2Student, Department of Computer Science and Engineering, Prince Shri Venkateshwara Padmavathy Engineering College, Tamil Nadu, India. 3Assistant professor, Department of Computer Science and Engineering, Prince Dr. K Vasudevan College of Engineering and Technology, Tamil Nadu, India. ---------------------------------------------------------------------***----------------------------------------------------------------------------
Abstract - Wireless sensor networks have major application
in the navigation service. This application is widely used in various domains like military, industries and medical applications. The navigation application is the in-situ interaction between the sensor and the user. The proposed idea is to assist the people in escaping from hazardous area in case of emergency. It is to track the exit and dangerous area boundary so that people nearby dangerous area achieve mild congestion and the people away from danger avoid unnecessary detours. The first step is to establish potential map, then to build a hazard level map and finally planning a safe path for each user. Dynamic path is provided so that user’s position is tracked according to their movement to the nearest exit point. Key Words: wireless sensor network, emergency navigation, dynamic path.
1.INTRODUCTION The advances in the technologies such as communication and their related technologies have put their results in sensors and their networks. Also the advance made in the wireless sensor devices helps us in providing the wide usage of the sensors in the fields [1]. Nowadays, the interaction between the user and the physical sensors has been increased as the interest of the people increases and also to provide a safe environment to the users [2], [3]. Due to this, computers are used to better serve the people by monitoring on its own and also interacting with this geographic world. The users are provided with the mobile phones in order to communicate with the sensors. If emergency occurs, then the users are directed to get out of the dangerous area as soon as possible. This is done by the nomadic interaction of the users with the sensors. In existing system, the users are directed to the destination path but the destination path is static and it cannot be changed. Due to this, the persons even when they are close to shortest exit are not directed to that path. Destination path is static and they are guided to that path even though it takes much time. In earlier days, the principles were based to monitor only the physical environment. Nowadays, it has increased communication between the in-situ user and the Š 2017, IRJET
|
Impact Factor value: 5.181
|
surrounding environment. Initially, the navigation of the person pursue for a critical path that is safe. The term safety does not mean an area that is far away, it refers to the area where less congestion occurs and less detours is encountered. It also has a fast reaction at the time of emergency. The next is human navigation will consume much time when compared to the process of traditional packet routing, as the time taken by the individual is more due to less speed in the movement. The process of packet routing scheme appears to be static which appears to be in contrast of the navigation of the human being which appears to be dynamic. There are many solutions for the navigation at the times of emergency that is assisted with the wireless sensor network. One of the previous approaches [4] rely on the algorithm of exhaustive search that will flood the networks on the communication graph with the packets. These packets are used to do Breadth first search. The algorithm may be optimal for path length, but it is very expensive for communication. The next is the greedy geographic search in which the person greedily moves to the destination and traverse towards the dangerous zone that is found on the way. To find solution the problem is split up into two parts. First is constructing a graph with all nodes in them but with limited number of edges to form full graph communication and this is called as skeleton graph. Then shortest path are found using this skeleton graph. Another approach is [3] the users are given with the devices such as the smart phones in which the Bluetooth is used to communicate with the sensors. During emergency the sensor network discovers a field and gives the user necessary information of guidance to the area of safety. The sensor network does not have a predefined memory of the location.
ISO 9001:2008 Certified Journal
|
Page 992