Positioning fusion method and system based on intelligent driving

Through the positioning and fusion method of intelligent driving, combined with multiple data source information, the road level of the vehicle is judged, which solves the problem of insufficient accuracy and real-time performance of traditional positioning methods in complex environments, and achieves high-precision lane-level positioning, suitable for severe weather condition.

CN119165473APending Publication Date: 2024-12-20BEIJING SMART CAR MZONE CO LTD
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Patent Information

Application Number
CN202411421332.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

In complex environments such as urban canyons, tunnels and viaducts, the accuracy and real-timeness of the traditional single positioning method are difficult to ensure, especially in severe weather conditions, resulting in untimely or inaccurate vehicle positioning information.

Method used

Adopting a positioning fusion method based on intelligent driving, combining the positioning system on the vehicle, on-board sensing equipment and multi-data source information, by obtaining real-time signal intensity changes, vehicle speed and steering angular velocity data, the lane marking line characteristics and environmental information are captured, and combined with pre-stored roads Features: judge the level of the road where the vehicle is located to improve positioning accuracy.

Benefits of technology

Provide high-precision lane-level positioning in complex environments to ensure accurate navigation of vehicles under harsh conditions, and has a wide range of applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a positioning fusion method and system based on intelligent driving. The method comprises the following steps: acquiring a real-time basic position of a vehicle by using a positioning system on the vehicle; the real-time vehicle speed and the real-time steering angular speed of the vehicle are obtained; positioning signal intensity change data, real-time vehicle speed signal intensity change data and real-time steering angular speed signal intensity change data received by a vehicle positioning system within a certain time period are obtained in real time, and if any two pieces of signal intensity change data are within respective preset change threshold values within the certain time period, the vehicle positioning system receives the positioning signal intensity change data; if yes, determining that the vehicle runs on the uppermost road; determining a relative lane relation of the road surface of the vehicle; obtaining a relative boundary relationship of the vehicle; and determining the road level of the vehicle. According to the invention, multiple devices such as the positioning system and the vehicle-mounted sensing device are used as data sources, information provided by multiple data sources is combined, lane-level high-precision positioning can be rapidly provided under the conditions of tunnels, viaducts, severe weather and the like, and the application range is wide.
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