Indirect View Camera Verification Using Reference Transducer Alignment
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Solution Overview
Problem
Existing indirect view systems for vehicles, such as camera systems, face challenges in verifying and maintaining the accurate alignment of recording portions with legally required fields of view, leading to potential blind spots and increased risk of collisions due to deviations in camera positioning, which are difficult to detect and correct without extensive test setups.
Innovation Solution
A method using reference transducers attached to the vehicle body, which are detected by the image sensor to verify if the camera system is capturing the required fields of view correctly, allowing for real-time adjustment and calibration without the need for complex test setups, enabling independent verification and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If camera systems are used to replace mirrors for indirect view, then night vision and flexibility are improved, but verification and alignment of recording portions become difficult and complex
Solution Approach 1:
The patent introduces a verification device as an intermediary tool that simplifies the alignment verification process. This device includes a housing with a viewing opening and a movable element that can be positioned at different locations around the vehicle. The movable element acts as a mediator between the camera system and the verification process, allowing operators to easily check whether the camera's recording portion correctly captures the legally required field of view without complex test setups.
2Reliability
If camera positioning deviates from ideal alignment, then blind spots increase and collision risk increases, but detection and correction without extensive test setups is difficult
Solution Approach 1:
The verification device enables self-service alignment verification. The movable element can be independently positioned by the operator at various locations around the vehicle, and the viewing opening allows direct observation of whether the camera captures the correct field of view. This self-service capability eliminates the need for external extensive test setups or specialized equipment, allowing operators to easily detect and correct alignment deviations themselves.
3Measurement precision
If complex test setups are used for verification, then measurement precision improves, but time requirements and equipment requirements increase
Solution Approach 1:
The patent extracts the essential verification function from complex test setups and concentrates it into a simple, portable verification device. By taking out only the necessary elements (housing, viewing opening, movable element) and eliminating unnecessary complexity, the device achieves accurate field of view alignment verification while significantly reducing time requirements and equipment needs. The movable element can be quickly positioned at different locations without requiring elaborate setup procedures.
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
This method simplifies the verification and adjustment of indirect view systems, reducing equipment and time requirements, allowing for uninterrupted operation and improved operational safety by ensuring accurate field of view capture and display.
Implementation Method 1
reference transducers (50), which are configured such that, in a state of the indirect view system (1) mounted to a vehicle (60), at least one reference transducer (50) lies in a recording portion (11) of the image capture unit (10) and is depicted on the image sensor (20)
Data Source
AI summary
Method for verifying indirect view system provides image capture unit (10) with image sensor (20), image processing unit (30), reproduction unit (40) and reference transducer (50) at a position at the vehicle (60), such that the reference transducer (50) lies in a recording portion of the image capture unit (10) and is depicted on the image sensor (20). The reference transducer (50) is defined at a reference transducer target position (51) on the image sensor (20). Image data of at least one recording portion (11) around the vehicle (60) are captured on sensor (20) and reproduced on unit (40). Then, a reference transducer current position (52) of the transducer (50) is determined on the image sensor (20) and the reference transducer current position (52) is compared with the reference transducer target position (51) to that extent whether reference transducer current position (52) is equal reference transducer target positon (51).