The invention provides a low data volume processing method for ensuring the real-time running distance acquisition precision of a train, which comprises the following steps that: a vehicle end acquires the real-time speed information of a vehicle, accumulates and calculates the absolute displacement value of the real-time running of the vehicle to obtain the absolute displacement, and the acquisition interval is less than or equal to 50ms; numbering the absolute displacement information by the vehicle end according to the frequency that the interval is greater than or equal to 400ms, and uploading the absolute displacement information to the local equipment end, so that the local equipment end obtains absolute displacement data; the local equipment end unpacks the received absolute displacement data, firstly reads the number information for sorting, and then obtains the absolute displacement data in the corresponding sequence; and if the packet loss condition occurs, the corresponding numbers are discontinuous, and at the moment, the local equipment side displays the current displacement of the vehicle by taking the next group of data with the missing numbers as the criterion. According to the method, the data sending amount is reduced, the packet loss rate is further reduced, and the defect that the calculation error of the local equipment end is increased due to packet loss is avoided.
本发明提供了一种保证列车实时行驶路程采集精度的低数据量处理方法,车辆端采集车辆的实时速度信息,对车辆实时行驶的绝对位移值进行累加计算,得到绝对位移,采集间隔≤50ms;车辆端按照间隔≥400ms的频次,将绝对位移信息编号后上传至本地设备端,使本地设备端得到绝对位移数据;本地设备端对收到的绝对位移数据进行解包,首先读取编号信息进行排序,然后获取相应次序的绝对位移数据;若出现丢包情况,则相应的编号出现不连续,此时,本地设备端以缺失编号的下组数据为准显示车辆的当前位移。该方法减少了数据发送量进而降低了丢包率,避免了丢包导致的本地设备端计算误差增大的缺陷。
Low data volume processing method for ensuring train real-time driving distance acquisition precision
一种保证列车实时行驶路程采集精度的低数据量处理方法
2023-09-22
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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