Method and device for acquiring traffic conditions
A technology of traffic road conditions and acquisition methods
Active Publication Date: 2017-06-23
ALIBABA (CHINA) CO LTD
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[0008] Embodiments of the present invention provide a method and device for obtaining traffic conditions, which are used to solve the problem that the road condition information obtained through the existing methods of obtaining traffic conditions is not fine enough and not accurate enough
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[0026] In the existing traffic road condition acquisition method, for a road, it can only be determined whether the traffic condition in the straight direction of the road is smooth, congested or slow, but usually, a road also includes left turn, right turn, U-turn lanes, and the traffic conditions of different lanes are not exactly the same. The existing acquisition method can only describe the traffic conditions in the straight direction, and cannot provide the traffic conditions of different lanes on the road. In this way, the road traffic conditions obtained by the user are not detailed enough And not accurate enough. Based on the above problems, the embodiments of the present invention provide a method and device for obtaining traffic conditions. Through the correlation processing of the floating car trajectory data, the road conditions of the non-straight lanes of the road can be accurately obtained, and more detailed information can be provided for the user. Road condit...
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An embodiment of the present invention provides a method and device for acquiring traffic conditions, the method comprising: receiving floating car track data carrying positioning information; and determining the driving position of the floating car on the road within a set time period according to the floating car track data and the driving direction of the floating car at the intersection of the road; if it is determined that the driving direction is a non-straight direction, then according to the positioning information corresponding to the driving position of the floating car on the road, calculate the first set distance from the intersection of the floating car within the set time period. The travel time from the fixed-distance travel position to the intersection; according to the travel time and the corresponding relationship between the preset travel time threshold and the traffic conditions, determine the traffic conditions of the non-straight lanes of the road within the set time period. The above road condition acquisition method can acquire the traffic condition information of the non-straight lane on the road, which can meet the diverse needs of users.
Description
technical field [0001] The invention relates to the field of traffic information processing, in particular to a method and device for acquiring traffic conditions. Background technique [0002] In the existing field of traffic information processing, the following methods are usually used to obtain the traffic conditions of each road in the road network: [0003] Firstly, receive the trajectory data uploaded by the floating vehicle with the positioning device installed on it for a period of time, and perform redundant processing on the trajectory data to obtain the actual trajectory data of the floating vehicle during this period; here, the trajectory data can include floating Vehicle identification, location information, etc.; [0004] Then, according to the actual trajectory data, determine the road that the floating car is driving on the electronic map, and the driving position on the determined road. The specific determination process is as follows: first, according to ...
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IPC IPC(8): G08G1/01
Inventor 胡润波
Owner ALIBABA (CHINA) CO LTD