Trajectory data processing method and device
A trajectory data and processing method technology, applied in the field of data processing, can solve the problems of poor trajectory data accuracy, weak spatial constraints, missing trajectory data, etc., to achieve the effect of improving accuracy
Active Publication Date: 2020-06-19
TENCENT CLOUD COMPUTING BEIJING CO LTD
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However, when vehicles or pedestrians are moving, there are often situations where the satellite positioning module cannot receive the satellite positioning signal. For example, the satellite positioning signal is blocked by tall buildings, trees or tunnels, so that some road sections cannot receive the satellite positioning signal, resulting in trajectory data. missing
[0003]
In the prior art, the interpolation method is usually used to determine the missing trajectory data in the prior art. However, in the interpolation process, if there is a continuous missing trajectory data, the position coordinates before and after the missing time have a spatial constraint on the time to be interpolated. is very weak, so it is difficult to obtain ideal interpolation results, resulting in poor accuracy of the trajectory data obtained by interpolation
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[0026] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] For the convenience of understanding, the nouns involved in the embodiments of the present application are explained below:
[0028] Big data technology: It is the ability to quickly obtain valuable information from various types of data. The reason for the emergence of big data: the advent of the era of big data is determined by the richness of data. The first is the rise of social networks and the emergence of a large amount of unstructured data on the Internet every day. In addition, the data volume of the Internet of Things is larger, and the mobile Internet can more accurat...
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The invention provides a trajectory data processing method and device, and relates to the technical field of data processing, and the method comprises the steps: obtaining to-be-processed trajectory data of a target object in a target time period, the to-be-processed trajectory data comprising at least one piece of positioning data of the target object in the target time period and a positioning time slice corresponding to each piece of positioning data; estimating data from the historical track of the target object in the target time period, and obtaining positioning estimation data corresponding to each missing positioning time slice except for each positioning time slice in a target time period, wherein the historical trajectory estimation data is obtained according to spatial-temporalcorrelation fusion among a plurality of historical trajectory data of a target object in the target time period. The positioning estimation data corresponding to each missing positioning time slice can be obtained from the historical track estimation data, and the accuracy is improved.
Description
technical field [0001] The embodiments of the present application relate to the technical field of data processing, and in particular to a trajectory data processing method and device. Background technique [0002] At present, the position coordinates of pedestrians or vehicles at different times are located by terminals with satellite positioning modules, and the movement trajectories of pedestrians or vehicles are formed according to the position coordinates at different times to characterize the movement situation. However, when vehicles or pedestrians are moving, there are often situations where the satellite positioning module cannot receive the satellite positioning signal. For example, the satellite positioning signal is blocked by tall buildings, trees or tunnels, so that some road sections cannot receive the satellite positioning signal, resulting in trajectory data. missing. [0003] In the prior art, the interpolation method is usually used to determine the missi...
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IPC IPC(8): G06F16/2458G06F16/27
CPCG06F16/2465G06F16/27
Inventor 夏彤孙福宁郭殿升李勇
Owner TENCENT CLOUD COMPUTING BEIJING CO LTD