Data Acquisition

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

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