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Method for locating autonomous vehicle and automobile computer

A technology for automatic driving and vehicles, which is applied in the field of automotive computers and positioning automatic driving vehicles. It can solve the problems of poor positioning information accuracy, high error, and reduced efficiency, and achieve the effect of improving accuracy and improving output.

Active Publication Date: 2017-11-07
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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AI Technical Summary

Problems solved by technology

[0003] However, only using the positioning method of this type of positioning system, because the positioning system itself has a certain range of errors, for example, the positioning accuracy of the Beidou satellite navigation system is 10 meters, the speed measurement accuracy is 0.2 m / s, and the timing accuracy is 10 nanoseconds. The system also loses efficiency at certain times (such as when bridges, tunnels, or other overhead objects temporarily block or impede the system's communication), so the output positioning information is less accurate and has higher error

Method used

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  • Method for locating autonomous vehicle and automobile computer
  • Method for locating autonomous vehicle and automobile computer
  • Method for locating autonomous vehicle and automobile computer

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Embodiment Construction

[0022] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] figure 1 An exemplary flowchart of an embodiment of a method for locating an autonomous driving vehicle according to the present application.

[0025] Such as figure 1 As shown, the method 100 for locating an autonomous vehicle may include the following steps:

[0...

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Abstract

The invention discloses a method for locating an autonomous vehicle and an automobile computer. A specific embodiment of the method includes: acquiring external environment information, position information and attitude information of the autonomous vehicle; determining absolute positioning information of the autonomous vehicle at the current moment based on the external environment information, the position information, and a high-definition map; performing motion compensation based on the external environment information and the attitude information so as to obtain the relative positioning information of the autonomous vehicle at the current moment; combining the absolute positioning information and the relative positioning information to obtain the self-positioning information of the autonomous vehicle at the current moment. This embodiment improves the accuracy of the self-positioning information and improves the accuracy of the self-positioning information output when the communication of a system is temporarily blocked or hindered.

Description

technical field [0001] The present application relates to the field of automobiles, in particular to the technical field of automatic driving, and in particular to a method for positioning an automatic driving vehicle and a vehicle computer. Background technique [0002] Existing methods for locating self-driving vehicles use global satellite navigation boards to determine the specific location of the vehicle. For example, the global positioning system (GPS), Beidou satellite navigation system and GLONASS satellite navigation system can be used to provide all kinds of users with high-precision and high-reliability positioning, navigation, Time service and short message communication capability. [0003] However, only using the positioning method of this type of positioning system, because the positioning system itself has a certain degree of error, for example, the positioning accuracy of the Beidou satellite navigation system is 10 meters, the speed measurement accuracy is...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01C21/28G01S19/49
CPCG01C21/165G01C21/28G01S19/49
Inventor 艾锐侯文博曹春亮
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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