Vehicle positioning method, system and vehicle calibration system
By establishing a ground coordinate system in the calibration field and using visual sensors and a ground gravity positioning module, the positional relationship between the vehicle positioning point and the sensor was adjusted, solving the problem of inaccurate positioning of heavy trucks in the calibration field, achieving high-precision vehicle positioning and reducing maintenance costs.
CN116147488BActive Publication Date: 2026-07-10ANHUI DEEPWAY TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI DEEPWAY TECHNOLOGY CO LTD
- Filing Date
- 2023-03-07
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
In the calibration field, heavy-duty trucks have insufficient positioning accuracy due to deviations in their vehicle posture relative to the origin of the coordinate system, which affects the accuracy of subsequent measurements.
Method used
A ground coordinate system is established in the calibration field. Using multiple vision sensors and a ground gravity positioning module, the vehicle's positioning point is adjusted to adjust the positional relationship between the sensor and the image information to achieve precise positioning.
Benefits of technology
It improves the accuracy and efficiency of vehicle positioning, reduces maintenance costs, and solves the problem of inaccurate positioning of heavy trucks in the calibration field.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116147488B_ABST
Abstract
The application discloses a vehicle positioning method, a vehicle positioning system and a vehicle calibration system. The method comprises the following steps: a calibration field is established in advance, the calibration field comprises a plurality of positioning marks on the ground, and a ground coordinate system is established according to the positioning marks; when a vehicle to be calibrated enters the calibration field, a first preset position of the calibration field is guided to enter the calibration field according to a sensor at a preset position in the calibration field, and the vehicle to be calibrated comprises a preset positioning point; when the vehicle to be calibrated continues to enter a second preset position of the calibration field from the first preset position, image information containing the preset positioning point is collected according to the sensor at the preset position in the calibration field; and the positioning of the vehicle to be calibrated is adjusted based on the ground coordinate system and the positional relationship between the preset positioning point and the sensor determined in the image information. Through the application, high-precision positioning before vehicle calibration is realized, the efficiency of vehicle calibration is improved, and the maintenance cost is reduced.
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