Miha Ambrož (Author), Uroš Hudomalj (Author), Alexander Marinšek (Author), Roman Kamnik (Author)

Abstract

Measuring friction between the tyres of a vehicle and the road, often and on as many locations on the road network as possible, can be a valuable tool for ensuring traffic safety. Rather than by using specialised equipment for sequential measurements, this can be achieved by using several low-cost measuring devices on vehicles that travel on the road network as part of their daily assignments. The presented work proves the hypothesis that a low cost measuring device can be built and can provide measurement results comparable to those obtained from expensive specialised measuring devices. As a proof of concept, two copies of a prototype device, based on the Raspberry Pi single-board computer, have been developed, built and tested. They use accelerometers to measure vehicle braking deceleration and include a global positioning receiver for obtaining the geolocation of each test. They run custom-developed data acquisition software on the Linux operating system and provide automatic measurement data transfer to a server. The operation is controlled by an intuitive user interface consisting of two illuminated physical pushbuttons. The results show that for braking tests and friction coefficient measurements the developed prototypes compare favourably to a widely used professional vehicle performance computer.

Keywords

zajem podatkov;drsna odpornost;trenje;zaviranje;pojemek;data acquisition;skid resistance;friction;braking;deceleration;raspberry Pi;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FE - Faculty of Electrical Engineering
UDC: 621.38(045)
COBISS: 16531227 Link will open in a new window
ISSN: 2079-9292
Views: 341
Downloads: 111
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: zajem podatkov;drsna odpornost;trenje;zaviranje;pojemek;
Type (COBISS): Article
Pages: 1-16 f.
Volume: ǂVol. ǂ8
Issue: ǂiss. ǂ3
Chronology: Mar. 2019
DOI: 10.3390/electronics8030341
ID: 13668070