Vehicle correction positioning point management method and device, server and medium

A management method and technology for positioning points, which are applied in vehicle wireless communication services, location-based services, and services based on specific environments, etc., and can solve the problems of low vehicle trajectory accuracy, slow query speed, and high frequency of reporting trajectories. , to achieve the effect of improving positioning accuracy, improving query speed, and maintaining consistency

Pending Publication Date: 2022-07-01
大众问问(北京)信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the influence of weather, construction, etc., the reported vehicle trajectory will deviate from the actual trajectory, which will lead to low accuracy of the reported vehicle trajectory.
Moreover, due to the large number of IoV terminals and the high frequency of reporting trajectories, the amount of data stored in the database is huge, which in turn leads to slow query speed

Method used

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  • Vehicle correction positioning point management method and device, server and medium
  • Vehicle correction positioning point management method and device, server and medium
  • Vehicle correction positioning point management method and device, server and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 This is a flow chart of a management method for vehicle correction positioning points provided by the first embodiment of the present invention. This embodiment is applicable to the situation of calibrating vehicle trajectories and collecting vehicle trajectories. The method can be executed by a management device for vehicle correction positioning points. , the device can be implemented in software and / or hardware. The device may be configured in a server. like figure 1 As shown, the method includes:

[0030] Step S110: Obtain the positioning information of the positioning point sent by the vehicle terminal.

[0031] The vehicle terminal may be a vehicle with a positioning function and capable of communicating with the server, and is used for sending the positioning information of the vehicle to the server. For example, the vehicle terminal may be a vehicle equipped with a positioning device such as a vehicle-mounted global positioning system (Global Positi...

Embodiment 2

[0058] figure 2 This is a flowchart of a method for calibrating a vehicle positioning point provided in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, such as figure 2 As shown, the method includes:

[0059] Step S201 , acquiring the positioning information of the positioning point sent by the vehicle terminal.

[0060] Step S202: Determine whether there is an initial trusted positioning point before the positioning point, if yes, go to step S203, otherwise, go to step S209.

[0061] Step S203 , acquiring the instantaneous speed, position and time of an initial credible positioning point before the positioning point.

[0062] Step S204: Obtain the current instantaneous speed, position and time of the vehicle terminal in the positioning information of the positioning point.

[0063] Specifically, the current instantaneous speed, position and time of the vehicle terminal are obtained from the positioning i...

Embodiment 3

[0091] image 3 This is a flow chart of a method for calibrating a vehicle positioning point provided in Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, such as image 3 As shown, the method includes:

[0092] Step S301 , acquiring the positioning information of the positioning point sent by the vehicle terminal.

[0093] Step S302, when there is a previous initial trusted positioning point of the positioning point, calculate the first distance between the positioning point and the previous initial trusted positioning point according to the positioning information of the positioning point, and set the first distance to meet the offset threshold value. The conditional anchor is used as the next initial trusted anchor.

[0094] The offset threshold condition is determined based on the instantaneous speed and time of the anchor point.

[0095] Step S303: Obtain positioning information of a continuous preset nu...

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Abstract

The embodiment of the invention discloses a vehicle correction positioning point management method and device, a server and a medium. The method comprises the following steps: acquiring positioning information of a positioning point sent by a vehicle terminal; when a previous initial credible positioning point of the positioning point exists, calculating a first distance between the positioning point and the previous initial credible positioning point, and taking the positioning point of which the first distance meets an offset threshold condition as a next initial credible positioning point; obtaining positioning information of a preset number of continuous initial credible positioning points, determining a target road closest to each initial credible positioning point in the map according to the positioning information of the initial credible positioning points, and mapping each initial credible positioning point to the target road to obtain a target credible positioning point; and storing the positioning information of each target credible positioning point to a recent database, and synchronizing the positioning information to a long-term database in a log synchronization mode. According to the embodiment of the invention, the positioning accuracy of the vehicle track and the query speed of the vehicle track are improved.

Description

technical field [0001] Embodiments of the present invention relate to a vehicle positioning technology, and in particular, to a management method, device, server and medium for vehicle correction positioning points. Background technique [0002] The current IoV system can collect vehicle trajectories and perform some calculations to meet the needs of users, or to meet the needs of financial vehicles for risk control. [0003] However, due to the influence of weather, construction, etc., the reported vehicle trajectory will deviate from the actual trajectory, resulting in a low accuracy of the reported vehicle trajectory. In addition, due to the large number of IoV terminals and the high frequency of reporting trajectories, the amount of data stored in the database is huge, and the subsequent query speed is slow. Therefore, how to improve the positioning accuracy of vehicle trajectories and improve the query speed of vehicle trajectories has become an urgent problem to be so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/029H04W4/40H04W64/00G01S19/14G06F16/29
CPCH04W4/029H04W4/40H04W64/00G01S19/14G06F16/29
Inventor 刘洪旭
Owner 大众问问(北京)信息科技有限公司
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