Method and device for predicting speed limit information, computer equipment and medium

A speed information and speed limit technology, applied in the computer field, can solve the problems of high update cost, difficulty in effectively meeting the application requirements of road speed limit information, long update cycle, etc.

Pending Publication Date: 2021-09-14
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above methods all have problems such as high update cost, long update cycle, poor accuracy, and certain lag, which do not meet the temporal a

Method used

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  • Method and device for predicting speed limit information, computer equipment and medium
  • Method and device for predicting speed limit information, computer equipment and medium
  • Method and device for predicting speed limit information, computer equipment and medium

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Embodiment Construction

[0049] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0050] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features,...

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PUM

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Abstract

The invention provides a method for predicting speed limit information; the method comprises the steps: obtaining a plurality of traffic tracks in a first preset time period, wherein each traffic track comprises a plurality of track points, and each track point is provided with position information and speed information; then, for each traffic trajectory, determining the deceleration behavior data for the traffic trajectory based on position information and speed information for a plurality of trajectory points of the traffic trajectory; based on the respective speed reduction behavior data of the plurality of traffic tracks, determining a candidate position area, and determining features of the candidate position area; and inputting the features of the candidate position area into a target classification model, and predicting the speed limit information of the candidate position area through the target classification model. The invention further provides a speed limit information prediction device, computer equipment and a medium.

Description

technical field [0001] The present disclosure relates to the field of computer technology, and more specifically, to a method, device, computer equipment and media for predicting speed limit information. Background technique [0002] As an important safety measure of traffic management, road speed limit plays an important role in traffic safety management and urban traffic planning. [0003] At present, the acquisition of road speed limit information at home and abroad is mainly based on image recognition technology to identify and extract the speed limit signs set on the road. For example, for the identification and extraction of road images obtained through panorama acquisition, and for the identification and extraction of road images acquired through satellites, etc. Or the current speed limit information of each road and each location can be obtained through the user's artificial feedback. [0004] However, the above methods all have problems such as high update cost, ...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06K9/62G06F16/2458G06F16/29
CPCG06Q10/04G06F16/2465G06F16/29G06F18/2321G06F18/24
Inventor 李烜赫李根李壮
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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