期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：2
页码：022099
DOI：10.1088/1755-1315/170/2/022099
语种：English
出版社：IOP Publishing
摘要：In order to solve the problem of inaccurate positioning of shunting locomotives by the shunting subsystem of the marshalling yard, this paper proposed a Zigbee shunting locomotive tracking and positioning system based on geographical information of station yards. The system adopted a modular design. The hardware of the lower computer included a coordinator node, a fixed node (routing node) and a vehicle-mounted collector node. This paper used BP (Back Propagation) neural network to fit the nonlinear function of RSSI (Received Signal Strength Indicator) to transmission distance. The research shows that the positioning system proposed in the paper can control the positioning error within 2m. Combined with the geographical information of the station site, the locomotive running position can be displayed on the map of the station yard. It can be a more complete solution to practical problems and has a certain practical value in the field.
