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Performance accuracy of real-time GPS asset tracking systems for timber haulage trucks travelling on both internal forest road and public road networks

机译：在森林内部道路和公共道路网络上行驶的木材运输卡车的实时GPS资产跟踪系统的性能准确性

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The GPSTRACK project has arisen as a result of a recommendation in the Forest Industry Transport Group (FITG) Code of Practice for Timber Haulage, which was to 'Encourage closer co-operation between consignors and hauliers to plan routes in a manner which optimizes the economic returns within a legal framework'. The project involved the installation of Bluetree global positioning systems (GPS) asset tracking systems onto two timber haulage trucks: an articulated Iveco Stralis 530 6⋆2 tractor unit with tri-axle road friendly air suspension flatbed trailer with a design gross vehicle weight (dgvw) equal to 44 t and a Scania 124 (400) with a rigid (3 axle) + trailer (3 axle) + crane combination with an equivalent dgvw of 441. This paper discusses the background and use of real-time asset tracking devices in the context of timber haulage in Ireland. Real-time location information is a relatively new concept for Irish applications (less than 5 years), but there is an increasing deployment of the technology into the truck transport sector in Ireland. The goal of this study was to test the accuracy of the recorded GPS locations relative to the underlying travelled route network based on the criteria of: 1) a fixed GPS receiver location, 2) a truck travelling on public routes, and 3) comparing accuracy of public routes to the accuracy of the truck travelling in a more demanding environment such as the internal forest road network. The results analysis calculated the horizontal root mean square (HRMS) 63 percent GPS accuracy of both trucks tracklog on both the public road network and the internal forest road network over a period of 4 weeks which totalled approximately 15,000 GPS data points. The HRMS accuracy values ranged from 2.55 to 2.47 m for the public roads, while the forest road accuracy were approximately 27 m and 41 m for Iveco and Scania, respectively.
机译：GPSTRACK项目是根据林业工业运输集团（FITG）的《木材运输操作规范》中的一项建议而提出的，该建议旨在“鼓励托运人与运输商之间更紧密的合作，以优化经济性的方式规划路线在法律框架内的回报”。该项目涉及在两辆木材运输卡车上安装Bluetree全球定位系统（GPS）资产跟踪系统：铰接式依维柯Stralis 5306⋆2牵引车，其三轴道路友好型空气悬挂平板拖车的设计总车重（dgvw ）等于44吨，以及带有刚性（3轴）+拖车（3轴）+起重机（等效dgvw为441）的Scania 124（400）。本文讨论了实时资产跟踪设备的背景和用途爱尔兰木材运输的背景。对于爱尔兰的应用程序（不到5年），实时位置信息是一个相对较新的概念，但是该技术在爱尔兰的卡车运输行业中的应用正在不断增加。这项研究的目的是根据以下标准测试记录的GPS位置相对于基础行进路线网络的准确性：1）固定的GPS接收器位置； 2）沿公共路线行驶的卡车；以及3）比较准确性公共路线对卡车在更苛刻的环境（例如内部森林公路网）中行驶的准确性的影响。结果分析计算了公共道路网络和内部森林道路网络上两辆卡车的航迹日志在4周内的水平均方根（HRMS）GPS准确性为63％，总共约有15,000个GPS数据点。公路的HRMS精度值范围从2.55到2.47 m，而依维柯和Scania的林道精度分别约为27 m和41 m。

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