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Mote Network

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This project focuses on optimizing plant monitoring through the use of Berkeley RENE Motes, equipped with various sensors including photo resistors and thermistors. By transitioning from a routing network to a beacon network for improved localization and power conservation, the system aims to efficiently collect and transmit sensor data. Key achievements include programming sensor control hardware, implementing an acknowledgment system, and integrating run-length encoding for data storage. Challenges included late hardware arrival and redesign requests under tight deadlines.

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Mote Network

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  1. Mote Network Waylon Brunette Jason Jenks

  2. OVERVIEW • Obtains sensor readings about the plant and mote’s current state. • Data packets will be sent over the RFM to a base station (another mote) that forwards packets to a computer. • Power is a precious commodity, so conservation is a major goal • Convert the system from a routing network to a beacon network, routing to be handled by hubs (Changed due to localization needs)

  3. Overview of Plant Care

  4. Rene Motes • The Berkeley RENE Motes are programmed with TinyOS. • Sensor data is collected using the ADC of the atmel AT90LS8535 chip (on the mote) • RFM transmistter • UART to communicate with serial port

  5. Sensors • photo resistor • thermistor • Irrometer (moisture sensor) • an inductively rechargeable power source

  6. Goals Achieved • Completed programming for the hardware that controls sensors for monitoring plants. • Re-implemented an new ACK system with sequence numbers. • Removed routing system, and replaced with a beacon system • Integrated hardware

  7. Networking • Run length encoding is used to store the information until there is enough information to fill up a data packet. • Added an ack system to ensure data delivery

  8. Power • Power conservation methods • Run length encoding of data • Turning off the irrometer when not in use • Power down of RFM when not in use (has problems with TinyOS)

  9. Difficulties • The Localization research team requested a redesign of the message and network system with one week left to the due date. • Power on Reset does not work properly • Hardware arrived late for integration testing • RFM Power down is appears to have bugs in its TinyOS implementation.

  10. Thanks To • Intel Research, Seattle staff Especially the following: • David Koizumi (with assistance from Howard at Intel, Portland) • Anthony LaMarca

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