Download 3-Space Sensor Data-Logging User`s Manual

User's Manual
2. Overview of the YEI 3-Space Sensor
2.1 Introduction
The YEI 3-Space SensorTM Data-Logging integrates a miniature, high-precision, high-reliability, Attitude and Heading
Reference System (AHRS) with a MicroSD card interface and a rechargeable lithium-polymer battery solution into a
single low-cost end-use-ready unit. The Attitude and Heading Reference System (AHRS) uses triaxial gyroscope,
accelerometer, and compass sensors in conjunction with advanced on-board filtering and processing algorithms to
determine orientation relative to an absolute reference orientation in real-time.
Orientation can be returned in absolute terms or relative to a designated reference orientation. The proprietary multireference vector mode increases accuracy and greatly reduces and compensates for sensor error. The YEI 3-Space
Sensor Data-Logging system also utilizes a dynamic sensor confidence algorithm that ensures optimal accuracy and
precision across a wide range of operating conditions.
The YEI 3-Space SensorTM Data-Logging unit features are accessible via a well-documented open communication
protocol that allows access to all available sensor data and configuration parameters using a USB 2.0 interface, and
configuration parameters are also accessible through configuration files on the SD card. Versatile commands allow
access to raw sensor data, normalized sensor data, and filtered absolute and relative orientation outputs in multiple
formats including: quaternion, Euler angles (pitch/roll/yaw), rotation matrix, axis angle, two vector(forward/up).
The YEI 3-Space SensorTM Data-Logging grants access to its SD card on a host PC through a USB Mass Storage
interface. Settings for how to gather data can be accessed through configuration files, and gathered data can be stored in
a variety of formats onto the SD card. The SD card uses the FAT32 filesystem.
When used as a USB device, the 3-Space SensorTM provides mouse emulation and joystick emulation modes that ease
integration with existing applications.
2.2 Applications
• Robotics performance analysis
• Motion capture
• Information gathering
• Personnel / pedestrian tracking
• Unmanned air/land/water vehicle tracking
• Education and performing arts
• Healthcare monitoring
• Asset tracking
• Vibration analysis and monitoring
• Event detection and monitoring
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