SLIDE 1
October 19, 2009 Current Issues Wi-Fi Tracking Systems - - PowerPoint PPT Presentation
October 19, 2009 Current Issues Wi-Fi Tracking Systems - - PowerPoint PPT Presentation
October 19, 2009 Current Issues Wi-Fi Tracking Systems Infrared Cameras Required Sensors Wii Remote Payload Testing Status Tasks for this week Wii Remote: MicroCART Weight close to max payload
SLIDE 2
SLIDE 3
MicroCART Weekly Meeting
Agenda
Current Issues
Wi-Fi Tracking System Infrared Cameras Required Sensors Wii Remote Payload Testing Status Tasks for this week
Wii Remote:
Weight close to max payload Triwing Screwdriver needed
to remove outer shell
Payload (and other) testing
Short battery life-need to
acquire new battery.
Contacted Xheli and they are
sold out, recommend no replacement, and will not have more in stock for 4-6 weeks
Want to make wired power
delivery systems for long term platform testing.
SLIDE 4
MicroCART Weekly Meeting
Agenda
Current Issues
Wi-Fi Tracking System
Infrared Cameras Required Sensors Wii Remote Payload Testing Status Tasks for this week
Ekahau RTLS
Real Time Locating System
Using 802.11
Information Request Sent Out Best accuracy only within a
foot
Do we want to use an RTLS if
we are not going to move far?
SLIDE 5
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System
Infrared Cameras
Required Sensors Wii Remote Payload Testing Status Tasks for this week
Are we going to utilize Dr.
Elia’s system or get our own?
If we use the current system
we need another camera for Z-axis
If we make our own there are
a few companies we could buy them from:
Vicon Electrophysics
Do we need any positioning
system if we use the Wii- Remote??
SLIDE 6
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System Infrared Cameras
Required Sensors
Wii Remote Payload Testing Status Tasks for this week
Air-based system
Helicopter electronics
Microprocessor/board for basic
stabilization calculations, with a wired/wireless connection to the helicopter microcontroller or ground station
Gyroscope(s) Accelerometer Some type of positioning system Camera IPS (Wi-Fi sensors) Wireless Tx/Rx Battery/converter to power these
electronics
Platform to hold these electronics EMI shielding?
Ground station electronics
Computer with wireless Tx/Rx Possibly some sort of connection
to the helicopter remote control
SLIDE 7
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System Infrared Cameras
Required Sensors
Wii Remote Payload Testing Status Tasks for this week
Ground-based system
Helicopter electronics
Gyroscope(s) Accelerometer Some type of positioning system Camera IPS (Wi-Fi sensors) Wireless Tx/Rx Battery/converter to power these
electronics
Platform to hold these electronics EMI shielding?
Ground station electronics
Computer with wireless Tx/Rx Possibly some sort of connection
to the helicopter remote control
SLIDE 8
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System Infrared Cameras Required Sensors
Wii Remote
Payload Testing Status Tasks for this week
Wii Remote Research
Sensors
Analog DevicesADXL330: 3 axis-
accelerometer
Infrared sensor strip triangulates
position and 2 axis gyration.
Possible add-on: Wii Motion Plus
which has 2 axis gyro (IDG-600)
Physical Structure
Weight with case and no
batteries=80g
Triwing screws hold case
together.
Connection
Broadcom BCM2042 Bluetooth
More info at:
http://wiibrew.org/wiki/Wiim
- te
SLIDE 9
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System Infrared Cameras Required Sensors Wii Remote
Payload Testing Status
Tasks for this week
“Fixed” quantities Heli. Mass empty 190g Batt. Mass 50g Flight ready platform: 240g Wii-mote without battries or batt.
cover: 80g
Weight reductions likely possible Payload capabilities (so far) Absolute max payload: 120g
^only for a few seconds
Data collected on next slide Full report to come Current findings/conclusions Lower throttle tests should hopefully
yield more steady (slower decay) results
Replacement/Reference battery(ies)
would be useful/necessary
Wired power support for flight
testing a must due to short flight time with payload and LONG charge time
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SLIDE 11
MicroCART Weekly Meeting
Agenda
Current Issues Wi-Fi Tracking System Infrared Cameras Required Sensors Wii Remote Payload Testing Status
Tasks for this week