Mobile Sensor Calibration Apparatus for ADAS
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Solution Overview
Problem
Current sensor calibration tools for Advanced Driver Assistance Systems are bulky and stationary, requiring vehicles to be taken to service centers, which is inconvenient and space-inefficient, especially for small facilities or on-site repairs.
Innovation Solution
A portable, foldable or compactable calibration apparatus mounted on a mobile support, such as a work vehicle, with electric motors for precise alignment and a telescoping mechanism for adjustment, allowing calibration to be performed at various locations and optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current calibration tools are used, then calibration can be performed, but the tools are bulky and stationary requiring vehicles to be taken to service centers
Solution Approach 1:
The calibration apparatus is divided into separate modular components including a reference structure, support structure, and mounting mechanisms that can be independently assembled and configured. This segmentation enables the system to be transported in parts and assembled at the service location, achieving mobility while maintaining calibration precision.
Solution Approach 2:
The calibration apparatus incorporates adjustable and reconfigurable elements such as height-adjustable support legs, telescoping reference structure members, and rotatable mounting mechanisms. These dynamic features allow the apparatus to adapt to different vehicle types and calibration requirements while being compact for transport, resolving the contradiction between mobility and functionality.
2Adaptability or versatility
If current calibration tools are used, then calibration can be performed, but they require vehicles to be brought into service centers or controlled environments
Solution Approach 1:
The calibration apparatus is designed as a universal system that can be deployed in multiple locations including outdoor environments, small service bays, and traditional service centers. The reference structure and support system are configured to work with various vehicle types and sensor configurations, enabling the same apparatus to serve diverse calibration needs across different facility sizes and locations.
Solution Approach 2:
The apparatus utilizes vertical space through height-adjustable support structures and telescoping members, allowing calibration to be performed in facilities with limited horizontal space. By extending in the vertical dimension, the system provides full calibration functionality without requiring proportionally larger floor space, enabling deployment in small service facilities.
3Ease of operation
If a portable calibration apparatus is used, then mobility is improved, but precision and repeatability of placement and alignment may be compromised
Solution Approach 1:
The apparatus replaces manual alignment methods with motorized positioning systems and electronic control mechanisms. Electric motors drive the reference structure members and mounting components to precise positions based on controller commands, ensuring repeatable and accurate alignment regardless of the apparatus's mobile nature. This mechanical-to-electronic substitution maintains measurement precision while enabling portability.
Solution Approach 2:
The calibration apparatus incorporates sensors and measurement systems that provide feedback to the controller about the actual positions and orientations of components. This feedback loop enables real-time adjustments to achieve precise alignment, ensuring that the portable apparatus can consistently achieve the required measurement accuracy and repeatability equivalent to stationary systems.
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
Enables mobile and accurate sensor calibration outside traditional service centers, preserving space in small facilities and allowing for flexible, efficient calibration processes in diverse environments.
Implementation Method 1
the telescoping mechanism comprises a threaded cavity and threaded screw mechanism
Data Source
AI summary
A mobile sensor calibration apparatus that is operable to be mounted to the side of a service vehicle to perform calibrations outside of a workshop environment. The mobile sensor calibration apparatus may further comprise platform members to provide an even surface for a subject vehicle having sensors needing calibration. In some embodiments, the mobile sensor calibration apparatus may be compacted and stored in the service vehicle during transportation.