Download - Wisenet network
WISENETWireless Sensor Network
SUBMITTED BY:Bhavith D
5th Sem CS 497IS08003
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Overview
• Introduction• Design Goals• Design Methodology• Primary Sub Systems• Block Diagrams• Applications• Conclusion
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Introduction
• Wireless Sensor Networks
– One of MIT's 10 emerging technologies
– Low-power systems
– New applications: sensing, controls, automation
• WISENET: Wireless Sensor Network
– Office environment monitoring• Temperature, humidity, light
– Quantitively evaluate heating & A/C systems
– Funding & support provided by Honeywell, Int'l.
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Design Goals• Use of Commercial-Off-The-Shelf (COTS)
software & standard interfaces where applicable
– Apache web-server (HTTP)
– MySQL database
– PHP web programming language
• Simple, web-based user interface
• Battery-powered, wireless sensor nodes: 'motes'
• Low-power consumption = Long battery life
• Motes create self-organizing ('ad-hoc') networks for robust communications
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Design Methodology
• Top-Down Design Process
– Define major subsystems
– Define subsystem interfaces
• Primary Subsystems:
– Client• Standard Web browser via
Internet– Server– Wireless mote network
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System Block Diagram
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Subsystem – Server
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WiseDB
• Written in C++
– Utilizes open-source APIs• Application Programming
Interfaces (API)• MySQL++ database API• Serial API
• Relays information from mote network to database
• Sends commands to mote network
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Web Program
– Written in PHP4
– Utilizes Charting Software: ChartDirector v3.0
– Generates 3 Graphs (default)
– Passes Parameters via HTTP GET
• Use bookmarks for specific queries
– Retrieves Data for Specific Mote or All Motes
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Web Program
• Data Retrieval Form:
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Web Program• Generated Graphs:
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System Block Diagram
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Block Diagram – Client
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Block Diagram – Server
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Block Diagram – Server
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Block Diagram– Sensor Network
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Block Diagram – Mote
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TinyOS
• Real-time operating system for microcontrollers
• Open-source project at UC Berkeley
• Key Features:
– Developed for sensing applications– Emphasis on low-power: Idle & sleep modes– Highly modular architecture– Efficient utilization of resources
• Currently developed for Atmega microcontrollers
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Applications– Lab / Office Monitoring
– Habitat Monitoring
– Security Applications
– Extreme Weather Surveillance
– Potential Biomedical Applications
– Military Reconnaissance
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Conclusion– WISNET is smaller and faster– Emerging technology that will
change the world– Many real-world applications– Low-power– Open-source software– Modular mote application design
(TinyOS)– Flexible server implementation– Simple user interface via the web
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Reference• www.google.com• www.wisenet.com• www.wikkipedia.com• www.pdf.com
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THANK YOU
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