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Undergrad Research Presentations
- 1. Multi-Rotor Drone for GC sensor George Kudyba
- 2. Essentials • Carry GC Sensor: ~ 1.5 kg • Have a Flight Time of 20 minutes • Transmit Collected Data • Auto-Pilot Features • Return to home Features (RTH) • Flight Stability • Easy Mobility
- 3. Frame • Hexacopter - Stable Flight, Higher Thrust • Quanum 680UC Pro ≈ 740g • Size motor to motor: 680mm ≈ 27in http://www.hobbyking.com/hobbyking/store/__55889__Quanum_680UC_Pro_Hexa_Copter_Umbrella_Carbon_Kit_.html
- 4. Flight Controller • HKPilot Mega 2.7 Master Set • Auto-Pilot Features • Return to Home Features •GPS •Telemetry/OSD •Power Sensor •3-axis gyro •Accelerometer •Magnetometer •Barometer •Compass http://www.hobbyking.com/hobbyking/store/__58283__HKPilot_Mega_2_7_Master_Set_With_OSD_LEA_6H_ GPS_Power_module_Telemetry_Radio_915Mhz_XT_60_.html
- 5. Radio Receiver/Transmitter • Turnigy 9x • 9 channels http://www.hobbyking.com/hobbyking/store/__8992__Turnigy_9X_9Ch_Transmitte r_w_Module_8ch_Receiver_Mode_2_v2_Firmware_.html
- 6. Motor • SunnySky X3508 S KV580 • Max Continuous power 330W • Half power 8 amps ≈ 950 (g) Thrust • 6 motors ≈ 5,700 (g) thrust • Weight 106 (g) http://www.buddyrc.com/sunnysky-x3508s-kv580-brushless-motor.html
- 7. Propeller • Motor Recommendations: 12x3.8 – 15x5.5 • Frame size limitation: Prop ≤ 13x5.5 • 12 – 13 inch Props are suitable • 12x3.8 ≈ 20.8 minute flight time (8000mAh) • 13x5.5 ≈ 21.7 minute flight time (8000mAh)
- 8. Electronic Speed Controllers • Motor Recommendation: 30A • No low voltage cut off • SimonK Firmware: 400khz refresh rate (from 10) http://www.amazon.com/gp/product/B00LNSBID6/ref=pd_lpo_sbs_dp_ss_3?pf_rd_ p=1944687522&pf_rd_s=lpo-top-stripe- 1&pf_rd_t=201&pf_rd_i=B00HUBQSJ4&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0T9RHZ A3D9NBY60JCV5H
- 9. Battery • Motor Recommendation: 4s LiPo • Want ≈ 20 min flight time • 8000mAh 30/45C ≈ 21.7 min (845 g) • 10000mAh 30/45C ≈ 24.2 min (870 g) http://www.hobbyking.com/hobbyking/store/__64438__Multistar_High_Capacity_4 S_10000mAh_Multi_Rotor_Lipo_Pack_US_Warehouse_.html
- 10. Battery Selection 5 7 9 11 13 15 17 19 21 23 25 1700 1900 2100 2300 2500 2700 2900 FlightTime(mins) Total Weight (grams) Relationship of Drone Weight and Flight Time 20/30C Discharge 30/45C Discharge 65/100C Discharge 8000mAh 30/45C 10000mAh 30/45C 6600mAh 65/100C
- 11. Performance
- 12. Performance • Total Weight: 2528 g • Hover Flight Time: 24.2 min • Additional Payload: 3673 g • Max Speed: 31.7 mph
- 13. Bill of Materials Part Quantity Price Quanum 680UC pro Hexa-Coter 1 $150 HKPilot Mega 2.7 1 $180 SunnySky X3508s-580 6 $216 Turnigy Plush 30AMP ESC 6 $79 13 x 5.5 SF Props 6 $18.4 MS 10000mAh 4s 30/45C 1 $90 TOTALS 21 $733
- 14. Bluetooth Real time Graph Teensy 3.1 George Kudyba
- 15. Teensy 3.1 • Arduino-Compatible Microcontroller • Writes an Analog value between 4095 and 0 • Converts Analog value to a Voltage Reading • Voltage reading between 3.3 and 0 • Reports Voltage Reading to android app • Connects Via Bluetooth
- 16. Teensy 3.1 and Bluetooth Setup Bluetooth Module Teensy 3.1
- 17. Arduino Code for square wave Write and Report High Voltage for 100 iterations Write and Report Low Voltage for 100 iterations Float map is used to change Analog Signal to Voltage Reading
- 18. Arduino Code used to report low and high voltage difference Produce High Voltage Signal Read Sensor at HV for 100 iterations Average the HV readings Produce Low Voltage Signal Read Sensor at LV for 100 iterations Average the LV readings Calculate Difference Report Difference Via Bluetooth
- 20. Android App Graph Sending Analog Signal of 4095 and 0 Receiving Voltage Reading of 3.3 and 0
- 21. Smaller Delay
- 22. Android App • Program Created in Eclipse • Real Time Graph • Connected via Bluetooth • Range of ≈ 30 feet
- 23. App Code
- 24. Full Gas Sensor Set up Android Tablet with App Op Amp and Bridge Micro Controller and Bluetooth GC Sensor