Autonomous Mobile Wireless Repeater

1
Autonomous Mobile Wireless Repeater

• Week 4
• Mentors/Sponsors
• Clark Guest
• Charlie Knezevich
• Team Members for Group 12
• Chris Chung
• Ali Daneshjoo
• Jeff Su
• Wei Ye

2
Agenda

• Gantt Chart
• Tasks Performed
• Wireless Relay Technical Specification
• Plane Specification
• PicoPilot Technical Specification
• Summary

3
Gantt Chart
4
Tasks Performed

• Determined the dimension and weight of our box
  of added parts (i.e. Relay GPS, Auto Pilot,
  Battery Charger and Voltage Regulator Circuit
  Boards)
• Contacted the builder of our RC plane and set up
  a time to meet with him and make sure his design
  meets our requirements
• Contacted Iowa Thin Film manufacturer to discuss
  wing mounted solar cells
• Decided on which autopilot version to use in
  order to be able to control throttle, and
  altitude.

5
Wireless Relay Technical Specification

• Repeater - A network device used to regenerate or
  replicate a signal. Repeaters are used in
  transmission systems to regenerate analog or
  digital signals distorted by transmission loss.
  Analog repeaters frequently can only amplify the
  signal while digital repeaters can reconstruct a
  signal to near its original quality.
• Chosen product information
• Product Name TRENDnet TEW-430APB
• Modes Wireless Bridge/Repeater
• Wireless Standards 802.11g backwards compatible
  with 802.11b
• Range 50-100 meters indoor, 100-300 meters
  outdoor
• Power Consumption 5Vdc/1.2A
• Dimensions 4.9x3.4x1.6 (no antenna)
• Weight 0.26 lb/118 g
• Frequency Range 2.412-2.484 GHz

6
Plane Specification

• Determined exact requirements for payload
  capacity of RC plane
• Plane must carry box with
• Dimensions 8 x 5 x 5.5 (length required for
  housing of relay plus antenna)
• Weight 1 lb. or approximately 450 grams

7
Voltage Regulator Circuit
Design of voltage regulator to provide 5V/1.2A to
power the wireless relay
8
PicoPilot Technical Specification
PicoPilot NAT
Very small size 1" x 2" x 0.5" ( 2 PCBs ) Very
low weight 1.0 oz ( 2 PCBs wire harness )
Plug-n-Fly no software setup, no calibration 2
axes control NAV-A (aileron) or NAV-R (rudder)
and ALT-E (elevator) or ALT-T (throttle)
Altitude hold uses a SMT barometric sensor for
altitude sample and hold /-1 ft accuracy Roll
attitude control (-A) uses the latest generation
MEMS sensors no external wing leveler required
Pitch attitude control (-E) uses a SMT
barometric sensor for vertical speed control Low
cost 1050
9
Summary / Future Plans

• Order parts and supplies
• Speak with builder of custom RC plane
• Speak with PicoPilot manufacturer
• Preliminary build of solar cells and power
  circuit
• Continue documentation