Thermal Detecting Wireless Sensor Network Presenters: Joseph Roberson, Gautam Ankala, and Jessica Curry Faculty Advisor: Dr. Linda Milor ECE 4007: Final Presentation Georgia Institute of Technology School of Electrical and Computer Engineering December 2, 2008

Georgia Institute of Technology – Senior Design Project 2 Project Overview  Monitor continuously thermal activity in environmental areas such as wildlife and forests. Detect hazardous thermal conditions using Crossbow motes and onboard sensors  Final cost of one unit is $2500, which includes four wireless sensors, software, and programming board. Primary consumer is wildlife and forest agencies  Program motes with algorithm that efficiently routes data through wireless sensor network  Transmit real-time data wirelessly to computer base station for analysis and response to threatening conditions

Georgia Institute of Technology – Senior Design Project 3 Design Objectives  Monitor outdoor area up 10,000 square meters  Detect hazardous thermal activity with onboard heat sensors  Program with energy efficient algorithm  Wirelessly transfer data readings from sensors to computer  Provide a basic structure for research groups focused on energy efficient wireless networks

Georgia Institute of Technology – Senior Design Project Proposed Network  Transceiver node –Communicate with PC –Receive information packet from nodes –Transmit or receive data  Intermediate Nodes –Forward data to transceiver node –Send information packets periodically –Programmed with CSMA/CA protocol

Georgia Institute of Technology – Senior Design Project 5 Proposed Versus Final Network  Transceiver Node –Does not sense environment –Connected to base station via USB  Intermediate Node –CSMA/CA protocol not implemented in sensor network –Wirelessly sends packets to transceiver node based on timing interval

Georgia Institute of Technology – Senior Design Project 6 Code Programmed at Transceiver Node TOSBase - /apps/TOSBase  Sets up the communication between PC and nodes  Receives data from intermediate node and forwards to PC Intermediate node Transceiver node (cluster head) PC (base station) radio USB TOSBase MTS400

Georgia Institute of Technology – Senior Design Project 7 Code Programmed at Intermediate Nodes MTS400 - /apps/MTS400  Broadcast data to the transceiver node  Includes Temperature threshold component –Returns TRUE: measured thermal intensity > threshold –Returns FALSE: measured thermal intensity < threshold Transceiver Node (TOSBase) Temp Intermediate Node (MTS400) Base Station

Georgia Institute of Technology – Senior Design Project 8 Cygwin Console  Cygwin is a collection of tools developed by Cygnus Solutions which provides a command line and programming interface for the micas  XListen is a Cygwin C console program written in C that receives radio packets from the Mote and converts to engineering units

Georgia Institute of Technology – Senior Design Project 9 Moteview Sensor 2 Sensor 1 Cluster Head Topology Chart Heat Temperature

Georgia Institute of Technology – Senior Design Project 10 Acceptance Testing  Received alert message when threshold reaches 40° C  Verified sensor readings for multiple sensors  Read data information in Moteview and Excel

Georgia Institute of Technology – Senior Design Project 11 Possible Future Improvements  Test larger sensor network  Create environment and test sensors  Implement CSMA/CA protocol  Determine cluster head automatically

Georgia Institute of Technology – Senior Design Project 12 Conclusion  Able to receive data for multiple sensors and receive alert messages once threshold is reached  For $2500, a good solution for homeowners and environmental areas  Good step towards future development in creating products for wildfire detection

Georgia Institute of Technology – Senior Design Project 13 Questions