机车综合通信设备应用GPS数据确定目标点的算法

The Arithmetic which is Used by Cab Integrated Radio Equipment to Make Sure the Target Point Based on GPS Data

论述了GSM-R机车综合通信设备(CIR)利用GPS数据确定火车进入目标点的算法。先介绍CIR的软件结构和主要功能然后是GPS在其中的应用。通过CIR的GPS模块RS-422串口读取GPRMC格式数据,然后提取其有效的数据的经纬度,通过计算分析确定机车所在的位置区间,再根据机车运行的方向、目标点、运行趋势动态的确定其到达目标点。

This article discusses the algorithm which is used by CIR to make sure the train＇s target point based on GPS data. First, we introduce the software construction and main function of CIR and then the application of GPS. This Arithmetic read the GPRMC formatted data through RS-422 serial port of CIR＇s GPS model, and then abstract the effective data of the latitude and longitude. Based on analysis and computing, we can identify the area where the loco- motive is located and finally determine the target point it is going to arrive dynamically according to direction, target point, and tendency of movement of locomotive.