Method and device for track filling
A trajectory and trajectory point technology, applied in the field of communication, can solve the problem of low accuracy and achieve the effect of high accuracy
Active Publication Date: 2022-01-21
CHINA UNITED NETWORK COMM GRP CO LTD
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Problems solved by technology
[0004] This application provides a track filling method and device, which can solve the problem of low accuracy of track filling during GPS out of lock
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[0019] The method and device for track filling provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0020] The terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included.
[0021] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be inte...
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The present application provides a track filling method and device, which relate to the communication field and solve the problem of low accuracy of track filling in the process of GPS out of lock. The method specifically includes: selecting the target planning track point during the GPS out-of-lock period from the feature track information according to the position information of the base point and the train running direction, the base point being the last track point whose position information has been determined in the train track, and the target planning track The point is the planned track point closest to the base point in the direction of train travel, and the feature track information at least includes the position information of each planned track point on the train line and the characteristic data of the community; in the direction from the base point to the target planned track point, according to the train travel The speed and sampling time, with the base point as the starting point, determine the location information of the filling track points corresponding to the cell characteristic data collected by the test equipment during the GPS out-of-lock period. It can be applied to the filling of running tracks of high-speed rail when GPS is out of lock.
Description
technical field [0001] The present application relates to the field of communications, and in particular to a method and device for filling traces. Background technique [0002] During the operation of the high-speed rail, communication operators can test and evaluate the network conditions at different latitudes and longitudes on the high-speed rail track. It may not be possible to receive GPS signals, resulting in the loss of GPS lock during high-speed rail driving. When the GPS lock occurs, the test data collected by the test equipment will lack latitude and longitude information. [0003] In order to correlate the test data with the latitude and longitude information, it is necessary to fill in the trajectory during the period when the GPS is out of lock. The existing filling method is that the position corresponding to the latitude and longitude associated with the last test data collected before the GPS is out of lock and the one collected after the GPS recovery Betw...
Claims
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IPC IPC(8): G06T11/20
CPCG06T11/206
Inventor 朱佳佳乔金剑陈纪阔陈崴嵬刘亮吕非彼王洋马昱
Owner CHINA UNITED NETWORK COMM GRP CO LTD