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2012, vol. 4, br. 2, str. 128-132
The practical design of in-vehicle telematics device with GPS and MEMS accelerometers
(naslov ne postoji na srpskom)
Ključne reči: accelerometer; advanced vehicle tracking; automatic crash notification; GPS; telematics
Sažetak
(ne postoji na srpskom)
The latest generation of vehicle tracking devices relies not only on Global Positioning System (GPS) but also uses low-cost Micro-Electro-Mechanical Systems (MEMS) accelerometers. This combination supports new services such as driving style characterization and Automatic Crash Notification (ACN). Our focus will be on practical considerations of such a telematics unit. The paper will consider the boundaries of allowed errors and minimal requirements for sensors and mounting requirements. Sensor range for crash detection and impact angle estimation was tested on field trials with two units containing accelerometers range of 18g and 2g. The kinematic orientation of vehicle is evaluated in a series of field trials with a resulting standard deviation of estimation of 1.67°. The second run of experiments considers the dynamic range and sampling rate of sensors during collision. A sensor range of 8g (typical for present-day telematics devices) can be used to detect crash without accurate knowledge of impact angle.
Reference
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Dissanayake, G., Sukkarieh, S., Nebot, E., Durrant-Whyte, H. (2001) The aiding of a low-cost strapdown inertial measurement unit using vehicle model constraints for land vehicle applications. IEEE Trans. On Robotics and Automation, 17: 733
Gebre-Egziabher, D., Elkaim, G.H., Powell, J.D., Parkinson, B.W. (2001) A non-linear, two-step estimation algorithm for calibrating solid-state strap down magnetometers. u: Integrated Navigation Systems, International Conference, St. Petersburg, Russia, May, Proceedings
Huang, M. (2002) Vehicle Crash Mechanics. New York: CRC Press
Park, M., Gao, Y. (2008) Error and Performance Analysis of MEMSbased Inertial Sensors with a Low-cost GPS Receiver. Sensors, (2008): 2240-2261
Renaudin, V., Afzal, M.H., Lachapelle, G. (2010) Complete Triaxis Magnetometer Calibration in the Magnetic Domain. Journal of Sensors, Article ID 967245
Rogers, R.M. (2003) Applied mathematics in integrated navigation systems. u: Rogers Engineering and Associates, AIAA, str. 18-19
Salycheva, A.O., Cannon, M.E. (2004) Kinematics azimuth alignment of INS using GPS velocity information. u: Proc. of NTM Conf., January 26-28, San Diego, CA, str. 3
 

O članku

jezik rada: engleski
vrsta rada: neklasifikovan
objavljen u SCIndeksu: 22.03.2013.

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