Abstract

Adhoc sensor networks consists of dense wireless network having tiny, low-cost sensor nodes which collect the environmental data and send it to the base station. Using such networks helps in monitoring and control of physical environments remotely with ease and accuracy. Examples include military applications, and acquiring sensing information from inhospitable locations like thick forests, active volcano regions etc. Since the devices will be battery powered and are scattered in a complex network, It is very difficult to locate each node, know about its status and how the devices are connected in the wireless network. Because of their increased importance and applications, wireless networks are becoming part and parcel of our day to day life, and hence the need of developing a system to visualise , control and monitor such networks arises. This paper presents implementation issues and author's contribution to design and implement a generic framework of the 'Network Visualization tool' to monitor adhoc wireless networks. The paper also elaborates system architecture, hardware and software organizations, and integration details of the proposed system with an exemplary wireless network based on standard IEEE 802.15.4 MAC protocol[1] to monitor temperature of different rooms in a house.

Highlights

  • Wireless adhoc networks have enormous applications in today's world, to name a few – Military applications, networks to detect chemical/radio active element/explosives, to study and monitor environmental changes in forests/oceans/active volcano regions, surveillance applications, traffic control systems, and vehicle parking systems, home and industrial automations etc. Such adhoc wireless networks consists of large number of cheap, micro-controller based low power battery operated wireless devices which are very small in size, less capable, and may or may not have a sensor based on application

  • Since the topology of adhoc wireless network is very complex with numerous devices which are scattered in the large geographical area, It will be very difficult to analyse how the wireless nodes are connected in the network, what is the status of each and every node, how is the network behaviour at any given time

  • We describe our design, implementation and integration details of a 'Generic Network Visualization tool' for monitoring adhoc wireless networks taking an example of a wireless personal area network based on IEEE 802.15.4 MAC protocol using AllGo's wireless nodes based on Freescale's MC1321X MCU[11]

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Summary

INTRODUCTION

Wireless adhoc networks have enormous applications in today's world, to name a few – Military applications, networks to detect chemical/radio active element/explosives, to study and monitor environmental changes in forests/oceans/active volcano regions, surveillance applications, traffic control systems, and vehicle parking systems, home and industrial automations etc. Such adhoc wireless networks consists of large number of cheap, micro-controller based low power battery operated wireless devices which are very small in size, less capable, and may or may not have a sensor based on application.

NETWORK VISUALIZATION TOOL ARCHITECTURE
TSS message types
TSS Message structures
Data logging mechanism
Timer based activities in TSS
TSS interactions with applications
HOST SUBSYSTEM
Integration tests
REAL TIME APPLICATION OF TEMPERATURE MONITORING NETWORK
CONCLUSIONS
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