Data Acquisition
Revision as of 11:19, 19 September 2007 by AlexTheGreat (talk | contribs)
Contents
Mission
Abstracting hardware sensors into quality data that can be accessed over a software interface
Sensors
GPS
For our first semester prototype, Alex selected the: Garmin GPS 18 5Hz ($200)
- Updates every 200ms
- Accurate to at least 3.5m, expected accuracy of ~1m
- 12 parallel satellite tracking, WAAS enabled
- Does not require a subscription to any service
- Voltage Requirement: 4.0-5.5V
Gyro and Accelerometer
The gyro and accelerometer are a combo system created by SparkFun. It incorporates both the ADXL330 and IDG300 to enable measurements of acceleration along the x, y, and z axes and of angular rate about the x and y axes. For more information, please visit SparkFun's page on the IMU 5 Degrees of Freedom.
- IMU 5 Degrees of Freedom
- Voltage Requirement: 3.3V
Compass
- Compass on board
- Voltage Requirement: 3.3V
Wheel Encoders
Laser Range Finder
Current LIDAR: Hokuyo URG-04LX
- Indoor model, not suitable to our needs
Next Semester LIDAR: SICK LMS
- Currently hoping to borrow one of these units from the Urban DARPA project
- Outdoor model, used by all serious competitors
