Dead Reckoning; G-Sensor (3-Axis Accelerometer) - Advantech TREK-550 User Manual

In-vehicle computing box smart display

Hide thumbs Also See for TREK-550:

Table of Contents

6.6 Dead Reckoning

Dead reckoning (DR) supplements GPS satellite position information with heading

and distance data provided by additional sensors. When GPS satellites are out of

sight, location is extrapolated using distance and angle information from the sensors.

DR enables accurate navigation even in locations with poor or absent GPS signals

such as tunnels, indoor parking facilities and deep urban canyons. In addition, DR

effectively eliminates the impact of multi-path effects in urban canyon environments.

A 3-axis accelerometer is integrated in TREK-550. This could be used to characterize

driver behavior such as hard accelerations, braking, and cornering.This also can tell

users other significant information that can be used in accident reconstruction etc. A

code example is provided for customer reference regarding how to access and con-

figure G-sensor. G-sensor is located on the motherboard inside the TREK-550.

Please refer the link (http://www.analog.com/static/imported-files/data_sheets/

ADXL345.pdf) for the G-sensor datasheet.

TREK-550/303 User Manual

Table of Contents

Trek-303