Method and device for predicting and positioning starting time of locomotive braking

The invention provides a locomotive braking starting moment predicting and positioning method and device, and the method comprises the steps: obtaining the pipe pressure data of a brake cylinder of a locomotive, the pipe pressure data being the data of the pipe pressure of the brake cylinder changing with time; selecting the pipe pressure data with a preset length for each time point in the pipe pressure data in sequence, and calculating a slope applied to the time point based on the selected pipe pressure data; and the locomotive braking starting moment is determined according to the slopes corresponding to the time points in the pipe pressure data. According to the method, the change trend of the pipe pressure can be accurately judged, and accurate positioning of the starting moment of braking applied by the locomotive crew is achieved. 本发明提供一种机车制动开始时刻预测定位方法及装置，方法包括：获取机车的制动机气缸的管压数据，所述管压数据为制动机气缸的管压随时间变化的数据；依次针对所述管压数据中的各时间点，选取预设长度的所述管压数据，并基于选取的所述管压数据计算与所述时间点应用的斜率；根据所述管压数据中与各所述时间点对应的所述斜率确定机车制动开始时刻。本发明能够准确判断管压的