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Method and device for updating road condition information

A technology of road condition information and coordinate information, which is applied in the field of road condition information update based on historical traffic records, can solve problems such as time-consuming and laborious, inability to obtain updated road condition information in time, and increase travel costs, so as to improve update cycle, high timeliness rate, cost reduction effect

Active Publication Date: 2017-02-15
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
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Problems solved by technology

This is a very painful thing for pedestrians. When encountering such a situation, they can only keep detours so that the navigation can recalculate a new path, which is not only time-consuming and laborious, but also greatly increases travel costs.
[0005] In addition, when the road is newly opened (including reopening and opening for the first time), it is impossible to obtain updated road condition information in time

Method used

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  • Method and device for updating road condition information
  • Method and device for updating road condition information

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Such as figure 1 As shown, in an embodiment of the present invention, the road condition update method includes:

[0054] Acquiring the recent flow information of road a for a period of time; wherein, obtaining the flow information of road a for a period of time may be achieved in the following manner: the road a is one of the existing roads.

[0055] Acquire the motion trajectories of several mobile terminals, wherein the motion trajectories of each mobile terminal are composed of a plurality of coordinate information corresponding to each mobile terminal; in this embodiment, each interval of a preset cycle and / or distance step The coordinate information of the mobile terminal is acquired once.

[0056] The mobile terminal may include a...

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Abstract

The invention provides a method and a device for updating road condition information. The method comprises the steps of obtaining the latest traffic information of a road a in one time period, comparing the latest traffic information with the historical traffic information of the road a in the same time period, taking the historical traffic of the road a as reference, if the latest traffic of the road a sharply increases within a non-set interval in the same time period relative to the historical traffic, updating the road condition information of the road a to be a new open road section, and if the latest traffic of the road a sharply drops within the non-set interval in the same time period relative to the historical traffic, updating the road condition information of the road a to be abnormal condition. The method for updating the road condition information is used for updating the road information of the road by analyzing the traffic status of the road in one time period and the historical traffic status of the same road in the same time period by use of mass data, and therefore, the updating cycle of the road condition information is greatly improved, and the timeliness ratio of discovering road obstacles and new open roads is high.

Description

[0001] 【Technical field】 [0002] The invention relates to a method and device for updating road condition information, in particular to a method and device for updating road condition information based on historical flow records. [0003] 【Background technique】 [0004] In the process of using GPS navigation, because the navigation fails to update the road condition information, people find that the roads in the navigation path are often blocked due to construction, accidents, traffic control and other reasons. This is a very painful thing for pedestrians. When encountering such a situation, they have to keep detours so that the navigation can recalculate a new path, which is not only time-consuming and laborious, but also greatly increases travel costs. [0005] In addition, when the road is newly opened (including reopening and opening for the first time), updated road condition information cannot be obtained in time. [0006] 【Content of invention】 [0007] One of the obj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
Inventor 梁福坤
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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