WISENET Wireless Sensor Network

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WISENETWireless Sensor Network

• Project Team
• J. Dunne
• D. Patnode
• Advisors
• Dr. Malinowski
• Dr. Schertz

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Overview

• Project Summary
• System Block Diagram
• Project Status
• Obstacles Overcome
• Obstacles Remaining
• Updated Timeline

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Summary

• WISENET is a network of low-power wireless sensor
  devices (motes) designed to record and report
  environmental data.
• (MICA mote from Crossbow Technology)

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System Block Diagram
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Project Status

• Hardware
• Chipcon Development Kit Received/Tested (Thanks
  to Honeywell Int'l, Inc)
• Keil uV2 IDE Chipcon Files Installed
• Sensors Support Hardware Identified
• Light TAOS TSL2550
• Humidity/Temp Sensirion SHT11
• DC-DC Converter Maxim MAX1676
• RS232 Converter Maxim MAX3221
• LEDs Discrete Components
• Mote Expansion PCB Design in Progress
• Sensor Hardware Not Tested

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Project Status

• Software - TinyOS
• Created Development Environment
• Analyzed TinyOS Component Structure
• Analyzed TinyOS Build Process
• Modified Build Process to Create Keil-Compatible
  Source Code
• Porting TinyOS Components
• Need to Complete/Test 'Blink' Application
• Need to Analyze Network/Comm Layers
• Need to Develop Sensor Drivers
• Need to Create a Complete Application

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Block Diagram Server
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Project Status

• Software - WiseDB
• MySQL Access Established
• Serial Communication Established
• Tested with Null-Modem Cable
• Sends and Receives Data Packets
• Sends and Receives Query Packets
• Routing/Scheduling Not Implemented
• Not Tested with Mote Hardware
• Implement as Windows NT Service

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Project Status

• Software Web GUI
• Written in PHP4
• Utilizes Charting Software ChartDirector v2.5
• Generates 3 Graphs (default)
• Passes Parameters via HTTP GET
• Retrieves Data for Specific Mote or All Motes
• Retrieval Software Complete

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Project Status
Software Web GUI Data Retrieval Form
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Project Status
Software Web GUI Generated Graphs
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Obstacles Overcome

• Software - WiseDB
• Serial Communications under Windows 2000
• Learned SQL Concepts Syntax
• Utilized MySQL API
• Software Web GUI
• Learned PHP4
• Implemented 3rd-Party Charting Software

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Obstacles Overcome

• Hardware
• Samples of Sensors Support Hardware
• Chipcon Dev Kit Keil uV2 Software
• Software TinyOS
• Complicated build process understood
• Compiler incompatibilities resolved (included
  modifying nesC and doing post-preprocessing on
  the source code)

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Obstacles Overcome

• TinyOS Build Process

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Obstacles Remaining

• Hardware
• Design Expansion Board PCB
• Chipcon Reference Design Created w/ CadStar
• Negotiations w/ CadStar for Student Pricing
  Failed
• Result Cannot Easily Modify Reference Design
• Mount / Test Sensors
• Create Mote Prototypes
• Software TinyOS
• Decide on a Network/Routing Scheme
• Create / Modify Radio Component(s)
• Develop Sensor Components

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Obstacles Remaining
Chipcon CC1010 Development Kit
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Obstacles Remaining
Chipcon Reference PCB Layout (Gerber)
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Updated Project Timeline

• December 2002
• Project Research (Hardware / Software)
• Preliminary Design
• WiseDB Communicating via Null-Modem Cable
• January 2003
• Significant Improvements to WiseDB
• Additional Hardware Research
• Began Porting TinyOS to CC1010
• February 2003
• Modified TinyOS Build Process for Keil
• Created Web Interface
• Began Hardware PCB Design

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Updated Project Timeline

• March 2003
• Finish Hardware Design
• Produce Mote Prototypes
• Complete Port of TinyOS to CC1010
• Core Components
• Radio / Communications Components
• Sensor Components
• Finalize WiseDB
• April / May 2003
• Debug TinyOS Components / Application
• System Testing / Debugging
• Research Expo Presentation
• Final Presentation and Report

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Questions?