ADAS Sensor Calibration Rig With Real-Time Vehicle Position Feedback
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Solution Overview
Problem
The existing methods for calibrating advanced driver assistance system (ADAS) sensors in vehicles are tedious, time-consuming, and require significant operator experience due to the need for precise positioning of trolley-like structures at predetermined distances and orientations, which can vary by vehicle manufacturer.
Innovation Solution
An apparatus and method featuring a base unit with swiveling wheels, a support structure with a calibration device, and a processing unit that provides real-time position feedback and automatic or manual movement capabilities to assist in aligning ADAS sensors with the vehicle, using a combination of sensors and actuators to achieve precise positioning based on reference data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning of trolley-like structures is used, then positioning accuracy can be achieved, but the process becomes tedious and time-consuming
Solution Approach 1:
The system incorporates sensors (cameras, LIDAR, ultrasonic sensors) that continuously detect the position of the calibration structure relative to the vehicle, providing real-time feedback to a control system. This feedback loop enables automatic adjustment of the structure's position, eliminating manual positioning while maintaining high precision and significantly reducing calibration time.
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated system combining sensors, processors, and actuators. The mechanical trolley structure is augmented with electronic positioning systems that automatically navigate and position the calibration targets, substituting human-operated mechanical adjustment with sensor-driven automated control.
2Measurement precision
If precise positioning at predetermined distances is required, then calibration accuracy improves, but operator experience and expertise become necessary
Solution Approach 1:
The calibration system performs self-positioning using onboard sensors and processing units. The system automatically determines its position relative to the vehicle, calculates required adjustments, and executes positioning without human intervention. This self-service capability eliminates the need for operator expertise while maintaining calibration accuracy.
Solution Approach 2:
Real-time sensor feedback provides continuous information about the calibration structure's position and orientation relative to the vehicle. The processing unit analyzes this feedback and automatically adjusts positioning, replacing the need for experienced operators to manually achieve precise positioning.
3Adaptability or versatility
If multiple vehicle manufacturers' specifications are accommodated, then adaptability improves, but device complexity increases
Solution Approach 1:
The calibration structure is designed with universal mounting mechanisms and standardized target elements that can accommodate different vehicle types and manufacturer specifications. The sensor system can detect and adapt to various vehicle geometries, and the control algorithm automatically adjusts positioning parameters based on detected vehicle characteristics, providing multi-functionality without proportionally increasing physical complexity.
Data Source
AI summary
An apparatus (1) for calibrating an ADAS sensor of a vehicle (9) comprises: a base unit (2) including a plurality of wheels (20); a support structure (3) integral with the base unit (2); a vehicle calibration assistance structure (4), mounted on the support structure (3) and including a calibration device (41, 42) configured to facilitate aligning or calibrating the ADAS sensor; a position detector, configured to capture values of a position parameter representing a position of the support structure (3) relative to the vehicle (9); a processing unit, configured to process the values of the position parameter in real time to derive information regarding an actual position of the support structure (3) relative to the vehicle (9).