Embedded sensor system and techniques to evaluate the comfort in public transportation

Author

Castellanos, Juan C. ; Susin, Altamiro A. ; Fruett, Fabiano

Author_Institution

Sch. of Electr. Eng., Univ. of Campinas, Campinas, Brazil

fYear

2011

fDate

5-7 Oct. 2011

Firstpage

1858

Lastpage

1863

Abstract

This paper shows an embedded measurement system based in tri-axial accelerometers, global positioning systems (GPS) and a temperature sensor supported by wireless communication and SD Card storage and beyond, the application of three sensor system algorithms to measure the comfort in public transportation. The first algorithm is based on the detection of acceleration´s peaks over threshold values produced by reckless driving, holes, speed bumps or others defects. The second one adds the detection of acceleration changes (Jerk) peaks over 0.4m/s³; whereas, the third one adds the RMS measurement from frequency-weighted accelerations following the standard ISO2631-1. Finally, all the algorithms report the time, type, magnitude, and geographic position of the event in a LabVIEW™ interface using a Google™ online map.

Keywords

Global Positioning System; ISO standards; accelerometers; measurement systems; temperature sensors; transportation; GPS; Google online map; LabVIEW™ interface; RMS measurement; SD card storage; embedded measurement system; embedded sensor system; frequency-weighted accelerations; global positioning systems; public transportation; standard ISO2631-1; temperature sensor; tri-axial accelerometers; wireless communication; Acceleration; Accelerometers; Global Positioning System; Indexes; Temperature measurement; Vehicles; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Transportation Systems (ITSC), 2011 14th International IEEE Conference on

Conference_Location

Washington, DC

ISSN

2153-0009

Print_ISBN

978-1-4577-2198-4

Type

conf

DOI

10.1109/ITSC.2011.6083051

Filename

6083051