Vehicle Positioning Chassis for Vision Calibration Alignment
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Solution Overview
Problem
The calibration accuracy of vehicle vision systems is compromised due to inconsistencies in the parking position and course angle of vehicles during calibration, as the position and angle cannot be reliably maintained consistent in calibration workshops.
Innovation Solution
A vehicle positioning device with a base, a chassis, a translation mechanism, and a rotation mechanism, which includes stoppers, through-beam sensors, and control units to adjust the vehicle's position and angle precisely, ensuring consistency by generating control instructions based on sensor data to align the vehicle with ideal positions and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual parking method is used in calibration workshop, then operation flexibility is maintained, but positioning consistency and calibration accuracy deteriorate due to random parking positions and angles
Solution Approach 1:
The patent replaces manual mechanical parking operations with an automated positioning system that uses through-beam sensors to detect vehicle position and a control system to automatically adjust the chassis position and angle, eliminating human error and achieving consistent calibration accuracy
Solution Approach 2:
The positioning system performs self-adjustment by automatically detecting its own position relative to the calibration plate through sensor feedback and autonomously correcting position and angle deviations without external intervention
2Measurement precision
If vehicle position and angle are not controlled, then ease of setup is maintained, but calibration accuracy deteriorates due to inconsistent relative position between vehicle and calibration plate
Solution Approach 1:
The positioning system is divided into independent functional modules: through-beam sensors for position detection, a control system for processing sensor data, and a chassis mechanism for executing position and angle adjustments, allowing each component to be optimized independently
Solution Approach 2:
The patent introduces a control system as an intermediary between the sensor detection stage and the chassis adjustment stage, processing sensor signals and generating appropriate control instructions to coordinate the complex positioning operations
3Reliability
If automated positioning system is implemented, then positioning consistency is improved, but device complexity increases due to additional mechanisms and control systems
Solution Approach 1:
The chassis mechanism serves multiple functions: it supports the vehicle, enables position adjustment along the X-axis, and provides rotation capability for angle adjustment, reducing the need for separate mechanisms for each function
Solution Approach 2:
The system implements closed-loop feedback by continuously monitoring vehicle position through sensors and automatically adjusting the chassis position based on detected deviations from the ideal calibration position
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures consistent vehicle positioning and angle adjustment, thereby enhancing the calibration accuracy of vehicle vision systems by maintaining the vehicle at a same position and angle, improving the overall calibration process.
Implementation Method 1
a first through-beam sensor array including two groups of first through-beam sensors arranged opposite to each other at two sides of the chassis in the X-axis direction respectively
Implementation Method 2
a translation mechanism arranged between the chassis and the base and configured to drive the chassis to move along an X-axis direction
Implementation Method 3
a rotation mechanism arranged between the chassis and the base and configured to drive the chassis to rotate about a Z-axis
Data Source
AI summary
The present disclosure provides a vehicle positioning device for vehicle vision calibration, a positioning adjustment method, and a positioning adjustment system. The vehicle positioning device includes a base, a chassis, a translation mechanism and a rotation mechanism. A to-be-calibrated vehicle is placed onto the chassis, and the chassis is provided with a stopper. The translation mechanism is arranged between the chassis and the base, and configured to drive the chassis to move in an X-axis direction in a three-dimensional coordinate system relative to the base in accordance with a translation control instruction. The rotation mechanism is arranged between the chassis and the base, and configured to drive the chassis to rotate about a Z-axis in the three-dimensional coordinate system relative to the base in accordance with a rotation control instruction.