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Raspberry Pi-based low-cost connected device for assessing road surface friction [Elektronski vir]Ambrož, Miha, strojnik, 1974- ...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.Source: Electronics [Elektronski vir]. - ISSN 2079-9292 (Vol. 8, iss. 3, Mar. 2019, 1-16 f.)Type of material - e-articlePublish date - 2019Language - englishCOBISS.SI-ID - 16531227
Author
Ambrož, Miha, strojnik, 1974- |
Hudomalj, Uroš |
Marinšek, Alexander |
Kamnik, Roman
Topics
zajem podatkov |
drsna odpornost |
trenje |
zaviranje |
pojemek |
data acquisition |
skid resistance |
friction |
braking |
deceleration |
raspberry Pi
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Ambrož, Miha, strojnik, 1974- | 20338 |
Hudomalj, Uroš | |
Marinšek, Alexander | |
Kamnik, Roman | 12660 |
Source: Personal bibliographies
and: SICRIS
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