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A method and system for identifying missing pedestrian facilities

A technology of pedestrian facilities and recognition methods, applied in the field of mobile navigation, can solve the problems of heavy workload and inability to guarantee coverage, and achieve the effect of reducing manual workload and improving recognition coverage

Active Publication Date: 2016-06-22
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of roads in the city, the workload of manual surveying and mapping to find new pedestrian facilities is very large, and the coverage cannot be guaranteed

Method used

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  • A method and system for identifying missing pedestrian facilities
  • A method and system for identifying missing pedestrian facilities
  • A method and system for identifying missing pedestrian facilities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 1 It is a flow chart of the method for identifying missing pedestrian facilities provided by Embodiment 1 of the present invention.

[0022] like figure 1 As shown, the method for identifying missing pedestrian facilities provided by the embodiment of the present invention can be realized through cooperation between a server and a user terminal equipped with a positioning system. And to move, the navigation software can collect the user's movement track of this trip and send it to the server, and the server will perform the operation of identifying the missing walking facilities. The missing pedestrian facility identification method provided by the embodiment of the present invention is executed by the server, including:

[0023] 110. Acquire the walking trajectory of the terminal.

[0024] Wherein, the walking movement track refers to a track generated by the user carrying the terminal while walking. The positioning system such as the satellite positioning s...

Embodiment 2

[0032] figure 2 It is a flow chart of the method for identifying missing pedestrian facilities provided by Embodiment 2 of the present invention.

[0033] like figure 2 As shown, on the basis of the above-mentioned embodiments, the missing walking facility identification method provided by the embodiment of the present invention uses a trajectory template to match the movement trajectory of the suspected missing walking facility, and screens out the missing walking facilities from the suspected missing walking facilities. Before the operation can also include:

[0034] 210. Acquire passing trajectories of at least one pedestrian facility, and use the passing trajectories of the pedestrian facilities to construct the trajectory template, wherein the trajectory template includes a graph composed of lines of the passing trajectory.

[0035] Among them, the traffic trajectory refers to the walking route of pedestrians passing through the pedestrian facilities, such as image ...

Embodiment 3

[0041] On the basis of the above-mentioned embodiments, the walking trajectory of the acquisition terminal can be preferably:

[0042] Acquire the movement trajectory of the terminal, and filter the movement trajectory according to the movement time threshold to determine the walking movement trajectory.

[0043]Since there may be multiple ways for the user to carry the terminal to move, the purpose of this operation is to filter out the walking movement trajectory from the movement trajectory. The difference between various moving modes is that the moving speed is different, so the moving modes can be distinguished according to the time spent in moving, for example, setting the threshold value of moving time, if the time taken by the mobile terminal to move within a unit distance is higher than the threshold value, That is, it means that the moving speed of the user is relatively slow, and it can be determined that the moving manner of the user terminal is walking.

[0044] ...

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Abstract

The embodiment of the invention provides a method and a system for identifying missing walking facilities. The method comprises the following steps: acquiring a walking motion track of a terminal, confirming suspected missing walking facilities from the walking motion track of the terminal according to map data, matching a track template with the motion track at the suspected missing walking facilities, and screening missing walking facilities from the suspected missing waling facilities. The method and the system for identifying the missing walking facilities, which are provided by the embodiment of the invention, can be used for finding the suspected missing walking facilities by virtue of the walking motion track of the terminal and the map data, and further finding the missing walking facilities by further screening the suspected missing walking facilities by virtue of the track template, so that the labor workload is alleviated, and the identification cover rate is improved.

Description

technical field [0001] Embodiments of the present invention relate to mobile navigation technology, and in particular to a method and system for identifying missing pedestrian facilities. Background technique [0002] At present, the amount of information in the electronic map is constantly expanding, and the electronic map includes not only highways, sidewalks and other passing roads, but also some pedestrian facilities, such as overpasses and underground passages. [0003] Due to the rapid construction of pedestrian facilities in the city, the electronic map needs to collect data frequently for updating to ensure the accuracy of the map. The existing data collection method is to manually observe the real road, and then compare it with the electronic map to find out the new pedestrian facilities. Due to the large number of roads in the city, the workload of manual surveying and mapping to find new pedestrian facilities is very large, and the coverage rate cannot be guarant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/30
CPCG01C21/00
Inventor 胡国静
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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