Vehicle Detector Calibration Using Movable Component Position
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional calibration techniques for detectors on vehicles do not account for dynamic variations in attitude and position after the vehicle starts traveling, leading to potential misrecognition of objects and decreased accuracy in driving assistance and autonomous driving systems.
Innovation Solution
An attitude/position detection system that utilizes changes in the position of movable vehicle components, such as doors and wipers, to detect and calibrate the detectors, allowing for efficient detection of detector attitude and position without the need for a dedicated target or calibration booth, even after the vehicle has started traveling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional calibration techniques are used for detectors on vehicles, then the calibration process is simple and can be performed in a controlled environment, but the detector accuracy deteriorates after the vehicle starts traveling due to dynamic variations in attitude and position
Solution Approach 1:
The patent applies the dynamics principle by enabling detector calibration to adapt to dynamic variations in vehicle attitude and position during travel. The system continuously updates calibration parameters based on real-time detector position and attitude data, transforming the static calibration process into a dynamic one that maintains accuracy throughout vehicle operation.
Solution Approach 2:
The patent implements parameter changes by modifying calibration parameters based on detected variations in detector position and attitude. The system adjusts calibration parameters dynamically in response to changes in vehicle motion, ensuring that the detector maintains measurement precision despite environmental variations during travel.
2Measurement precision
If detector calibration is performed dynamically after vehicle travel starts, then the detector accuracy is maintained under varying conditions, but the system complexity increases
Solution Approach 1:
The patent applies the self-service principle by enabling the detector calibration system to automatically adjust its own parameters based on detected position and attitude variations. The system performs self-calibration without requiring external intervention or complex additional hardware, reducing overall system complexity while maintaining measurement precision.
Solution Approach 2:
The patent implements feedback by using detected detector position and attitude information to continuously adjust calibration parameters. The system creates a closed-loop calibration process where measurement data feeds back into the calibration mechanism, maintaining accuracy without requiring overly complex external control systems.
3Productivity
If conventional calibration methods are used without considering vehicle motion, then the calibration process is fast and simple, but the reliability of driving assistance and autonomous driving systems decreases
Solution Approach 1:
The patent applies preliminary action by performing initial detector calibration before vehicle travel begins, establishing a baseline calibration state. This preliminary calibration is then refined during travel based on detected position and attitude variations, allowing the system to maintain both calibration efficiency and reliability through a two-stage approach.
Solution Approach 2:
The patent implements dynamics by transitioning from static pre-travel calibration to dynamic in-travel calibration adjustments. The system maintains calibration efficiency by using the preliminary calibration as a foundation and only making necessary adjustments during travel, rather than performing complete recalibration cycles.
Data Source
AI summary
In an attitude/position detection system for a detector mounted to a vehicle, an attitude/position detection device is configured to use a change in position of a movable component of the vehicle to perform attitude/position detection for the detector. The detector is mounted to the vehicle such that at least a part of the movable component of the vehicle is included in a detection region.