Method and device for updating road condition information

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...

AI Technical Summary

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

Images