20.500.12556/RUL-130617 Comparison of global navigation satellite system devices on speed tracking in road (tran)SPORT applications Global Navigation Satellite Systems (GNSS) are, in addition to being most widely used vehicle navigation method, becoming popular in sport-related tests. There is a lack of knowledge regarding tracking speed using GNSS, therefore the aims of this study were to examine under dynamic conditions: (1) how accurate technologically different GNSS measure speed and (2) how large is latency in speed measurements in real time applications. Five GNSSs were tested. They were fixed to a car’s roof-rack: a smart phone, a wrist watch, a handheld device, a professional system for testing vehicles and a high-end Real Time Kinematics (RTK) GNSS. The speed data were recorded and analyzed during rapid acceleration and deceleration as well as at steady speed. The study produced four main findings. Higher frequency and high quality GNSS receivers track speed at least at comparable accuracy to a vehicle speedometer. All GNSS systems measured maximum speed and movement at a constant speed well. Acceleration and deceleration have different level of error at different speeds. Low cost GNSS receivers operating at 1 Hz sampling rate had high latency (up to 2.16 s) and are not appropriate for tracking speed in real time, especially during dynamic movements. Global Positioning System measuring devices sport vehicle velocity vozila GPS merilna naprava hitrost šport merjenje navigacija true false true Angleški jezik Slovenski jezik Članek v reviji 2021-09-16 10:32:37 2021-09-16 10:32:38 2022-09-09 04:17:18 0000-00-00 00:00:00 2014 0 0 Str. 23490-23508 iss. 12 Vol. 14 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 5:796.01 1424-8220 10.3390/s141223490 4595377 RAZ_Supej_Matej_2014.pdf RAZ_Supej_Matej_2014.pdf 1 3A836E96B51BB22CA3130988F35CAB40 640df236a62f0602ecf638a410a88885b79973fc75b9c9b9b82f776ce75ccf37 c59217f2-16c8-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=147758 https://www.mdpi.com/1424-8220/14/12/23490 0 b4d4648c-16c8-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=147757 Fakulteta za šport 0 0 0