A method and a system for establishing an auxiliary driving database

An assisted driving and database technology, applied in the field of Internet communication, can solve the problems of cumbersome and repetitive steps, low efficiency, etc., to save time, avoid repeated fitting, and improve update efficiency and scope of application.

Active Publication Date: 2019-05-07
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of cumbersome and repetitive steps and low efficiency when calculating the curvature, heading and slope of the road in the ADAS map of the prior art, the present invention provides a method and system for establishing an assisted driving database:

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  • A method and a system for establishing an auxiliary driving database
  • A method and a system for establishing an auxiliary driving database
  • A method and a system for establishing an auxiliary driving database

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] It should be noted that the terms "comprising" and "having" in the description and claims of the present invention and the above drawings, as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, including a series of steps or units The process, method, system, product or server is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inhere...

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Abstract

The invention discloses a method and a system for establishing an auxiliary driving database. The method comprises the steps of obtaining a track point sequence of a to-be-calculated path; When the path to be calculated belongs to the target area, calculating a track point sequence to obtain a query parameter; Querying in a database according to the query parameter to obtain a record of the matching path; Reading corresponding parameters of the matching path for three-dimensional third-order Bezier curve fitting; Taking corresponding parameters obtained by performing three-dimensional third-order Bezier curve fitting on the track point sequence, the query parameters and the matching path as records of the path to be calculated, and writing the records into a database, Wherein each track point in the track point sequence points to the corresponding three-dimensional position coordinate, and the query parameter comprises the length of the path to be calculated. According to the method, the curvature, the course and the gradient of the path to be calculated can be quickly and conveniently obtained, repeated fitting is avoided, and time is saved. And the new records are complated through querying and matching with the existing records in the database, so that the updating efficiency and the application range of the database are improved.

Description

technical field [0001] The present invention relates to the technical field of Internet communication, in particular to a method and system for establishing an assisted driving database. Background technique [0002] Advanced Driving Assistance System (ADAS, Advanced Driving Assistance System) uses various sensors installed on the vehicle to sense the surrounding environment at any time during the driving process of the vehicle, collect data, and carry out identification, detection and tracking of static and dynamic objects , combined with the map data of the navigator, for systematic calculation and analysis, so that the driver can be aware of possible dangers in advance, and effectively increase the comfort and safety of vehicle driving. [0003] ADAS maps are an inaccessible part of advanced driver assistance applications. ADAS maps reflect the curvature, heading and slope of the road, which provide long-distance information perception capabilities for vehicles to perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘春
Owner TENCENT TECH (SHENZHEN) CO LTD
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