In-Vehicle Camera Optical Axis Alignment Using a Centering Jig
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Solution Overview
Problem
The existing methods for adjusting the optical axis position of a camera on a vehicle require manual marking to align the vehicle centerline, which is inaccurate and inefficient, especially when the vehicle is not horizontal to the ground.
Innovation Solution
An optical axis position adjuster comprising a target board, leg portion, and installation auxiliary jig that aligns the vehicle centerline with the leg portion centerline, allowing for easy and accurate adjustment of the camera's optical axis without manual marking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual marking is performed to align the vehicle centerline with the target board, then the optical axis position can be adjusted, but the process becomes complex and time-consuming requiring multiple workers
Solution Approach 1:
The patent introduces an installation auxiliary jig as an intermediary device that connects the target board to the vehicle. This jig incorporates alignment marks that automatically align with vehicle features, eliminating the need for manual marking operations while ensuring precise positioning of the target board relative to the vehicle centerline
Solution Approach 2:
The installation auxiliary jig is pre-equipped with alignment marks and positioning features before installation. These preliminary preparations enable direct alignment with the vehicle without requiring on-site marking operations, thereby simplifying the adjustment process while maintaining precision
2Measurement precision
If manual marking is performed to visualize the vehicle centerline, then the optical axis position can be adjusted, but the installation time increases
Solution Approach 1:
The installation auxiliary jig serves as a mediator that transfers the alignment function from manual marking operations to a pre-fabricated alignment system. The jig's alignment marks provide immediate visual reference for centerline alignment, eliminating time-consuming marking operations while maintaining alignment accuracy
Solution Approach 2:
The patent replaces the manual marking mechanical process with a pre-positioned alignment mark system on the installation auxiliary jig. This substitution eliminates the need for workers to physically mark the vehicle, thereby reducing installation time while preserving alignment precision
3Measurement precision
If the target board installation position requires fine adjustment, then the optical axis position can be accurately adjusted, but the operation becomes difficult and time-consuming
Solution Approach 1:
The installation auxiliary jig acts as an intermediary that absorbs the complexity of precise positioning. By incorporating positioning features and alignment marks directly into the jig, the system eliminates the need for operators to perform fine adjustments of the target board, making installation easier while maintaining positioning accuracy
Solution Approach 2:
The target board and installation auxiliary jig are pre-positioned and pre-aligned during manufacturing. This preliminary action ensures that when the assembly is installed on the vehicle, the target board is already in the correct position, eliminating the need for difficult and time-consuming fine adjustments on-site
4Measurement precision
If marking is performed by multiple workers to obtain the vehicle centerline, then the optical axis position can be adjusted, but the labor cost increases
Solution Approach 1:
The installation auxiliary jig serves as a cost-effective intermediary that replaces the need for multiple workers performing manual marking. The jig's pre-fabricated alignment features provide the same centerline determination function that previously required coordinated efforts of multiple workers, thereby reducing labor costs while maintaining accuracy
Data Source
AI summary
An optical axis position adjuster according to the present disclosure includes a target board, a leg portion that supports the target board, and an installation auxiliary jig that connects the leg portion and the vehicle. The leg portions can be installed horizontally with respect to the ground. The installation auxiliary jig is connected to a connecting portion provided in the leg portion and is connected to an emblem provided in the vehicle. The connecting portion is disposed at the center of the leg portion, and the emblem is disposed at the center of the vehicle in the vehicle width direction. Therefore, it is possible to connect the vehicle and the leg portions such that the center of the target board and the center of the vehicle in the vehicle width direction coincide with each other in a plan view.