Performance Accuracy Of Low‐Cost Dynamic Non‐Differential GPS on Articulated Trucks

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Title: Performance Accuracy Of Low‐Cost Dynamic Non‐Differential GPS on Articulated Trucks
Authors: Devlin, Ger
McDonnell, Kevin
Ward, Shane
Permanent link: http://hdl.handle.net/10197/6070
Date: 2007
Abstract: The purpose of this study was to evaluate the positional accuracy of dynamic non‐differential global positioning system (Non DGPS) for tracking articulated trucks across the Irish road network. The study was carried out using a Trimble GeoXT handheld GPS unit in the non‐differential mode. The data was logged through Environmental Systems Research Institute (ESRI) ArcPad software. The GPS unit was operated in conjunction with an external magnetic antenna that was fitted to the cab of the articulated truck. The articulated truck was a DAF 95XF model, 4×2 tractor unit with a Fruehauf manufactured tri‐axle curtain side trailer measuring 13.6 m in length and 4.2 m from the ground. Routes were traveled from the east of Ireland to the south and southwest of the country on three separate occasions during August 2005 giving a total of six consecutive routes. Over 50 h of data, totaling approximately 6,000 data points, sampled at 30‐s intervals were recorded. Of these 50 h, over 30 h were recorded as dynamic points totaling approximately 4,000 sampling points. The Horizontal Root Mean Square (HRMS) accuracy was measured at a confidence of 63%. Results ranged from 6.9 m for the Cork 1 route to 3.2 m for the Cork 2 route. With this high level of positional accuracy available, it will be more than adequate to use low‐cost non‐differential GPS to track position and movement of timber trucks across the Irish public road network.
Type of material: Journal Article
Publisher: American Society of Agricultural and Biological Engineers
Copyright (published version): 2007 American Society of Agricultural and Biological Engineers
Keywords: GPS;GIS;Non‐differential GPS;Dynamic positional accuracy
DOI: 10.13031/2013.22680
Language: en
Status of Item: Peer reviewed
Appears in Collections:Biosystems and Food Engineering Research Collection

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