Stephen Copeland, Xau Moua, Joseph Lane, Robert Akerson Client: Doug Taylor, John Deere Renewables Advisors: Dr. Manimaran Govindarasu, Dr.Venkataramana Ajjarapu

 Small scout towers capable of wirelessly transmitting measurements to large MET towers.  Wireless communication via radio transceivers on scout tower and MET tower.  Built-in mesh networking protocol

Microcontroller Arduino Runs programmed code to send and receive data on mesh network Wireless Shield Xbee Provides easy form of adapter from transceiver to arduino due to header misalignment.

Transceiver Xbee-PRO digimesh 900 Provides mesh protocol Transmits data to other node Antenna 7" ½ wave dipole, bulkhead mount, RPSMA connector Omni-directional transmission of data

Wind Vane NRG#200P Provides wind direction Angle from North=(360’/Vin)*Vout Vout ranging from 0 to Vin Anemometer NRG#40C Provides wind speed Generates a sine wave whose frequency determines wind speed

Used to transform the Sine wave output from the Anemometer into a square wave which provides the arduino with a frequency that represents the measured wind speed.

 Range Evaluations ◦ Elevated testing locations north of Ames  Power consumption ◦ Use of LabView and multi meters to measure current and voltage levels  Microcontroller ◦ Basic data communication ◦ Message integrity ◦ Throughput

 Self Healing ◦ Selected modules turned off during transmission  Security ◦ Channel hopping, Encryption  Latency ◦ Receiving rate vs. data size  Casing ◦ Shock, vibration, realistic impact, and contact with water, ice, and snow.

 More in-depth testing of sensor/arduino interface  Affixing sensors and modules to roof of Coover for data collection  Working with EE491 Wind Turbine team to develop real-time wind simulation.

Any Questions?