Optical Vehicle Body Material Detection Without Identification Holes
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Solution Overview
Problem
Existing methods for distinguishing rust-proof and non-rust-proof materials in vehicle body parts require forming identification holes, which can lead to noise, moisture ingress, and production inefficiencies, and are difficult to correct when hole positions need adjustment.
Innovation Solution
An apparatus and method using a light source, optical sensor, and control circuit to detect material type based on reflection light intensity without forming holes, employing a barrier to prevent direct emission light detection and varying reference voltages based on vehicle body part type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If identification holes are formed in vehicle body parts to distinguish rust-proof and non-rust-proof materials, then material identification capability is improved, but vehicle noise increases and water-tightness deteriorates
Solution Approach 1:
The patent replaces the mechanical hole-forming method with an optical detection system. Instead of creating physical holes in the vehicle body parts, the invention uses a light source to emit light toward the part and an optical sensor to detect reflected light characteristics. The control circuit analyzes the detection current generated by the optical sensor to determine material type (rust-proof or non-rust-proof), thereby eliminating the need for identification holes while maintaining material differentiation capability.
Solution Approach 2:
The patent introduces an optical sensor as an intermediary between the light source and the material being detected. The optical sensor detects reflected light characteristics without requiring direct contact or physical modification of the vehicle body part. This intermediary approach enables material identification while preserving the integrity and water-tightness of the vehicle body.
2Difficulty of detecting and measuring
If identification holes are formed using separate hole-manufacturing molds, then material identification is enabled, but production complexity and time increase
Solution Approach 1:
The patent replaces the mechanical hole-forming process with an optical detection system. Instead of using separate hole-manufacturing molds and dual production lines, the invention uses a light source and optical sensor to detect material characteristics. The control circuit processes the detection current to identify material type, thereby eliminating the need for complex hole-forming equipment and dual production line management.
Solution Approach 2:
The optical detection system serves as a universal solution that can identify both rust-proof and non-rust-proof materials without requiring different equipment or processes. The same light source and optical sensor configuration can detect various material types by analyzing reflected light characteristics, eliminating the need for material-specific hole-forming molds and simplifying production workflow.
3Difficulty of detecting and measuring
If identification holes are formed, then material type can be distinguished, but additional post-processing work is required to prevent noise and moisture ingress
Solution Approach 1:
The patent replaces the hole-forming and post-processing workflow with a non-contact optical detection system. Instead of forming holes and then performing additional steps to insert plugs or apply sealers, the invention uses light reflection characteristics to identify material type without creating any openings. This eliminates the entire post-processing sequence related to hole management, thereby improving production efficiency.
4Adaptability or versatility
If hole position needs to be adjusted for body line or assembly line requirements, then adaptability is improved, but manufacturing complexity and correction difficulty increase
Solution Approach 1:
The patent replaces the physical hole-positioning system with an optical detection system that requires no physical modifications to the vehicle body parts. Since no holes are formed, there are no position adjustments needed for hole placement. The optical sensor can be positioned anywhere within detection range, and the system adapts to different body lines and assembly line requirements by adjusting sensor placement or detection parameters without requiring physical corrections or rework.
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 accurate material differentiation without holes, improving vehicle performance by reducing noise and enhancing water-tightness.
Implementation Method 1
an optical sensor configured to detect a reflection light generated by reflection of the emission light at the vehicle body part
Data Source
AI summary
An embodiment apparatus for detecting a material of a vehicle body part includes a light source configured to emit an emission light toward the vehicle body part, an optical sensor configured to detect a reflection light generated by reflection of the emission light at the vehicle body part and to generate a detection current according to an intensity of the reflection light, a case enclosing the light source and the optical sensor, and a control circuit configured to convert the detection current to a detection voltage, to determine a material of the vehicle body part as a first material in response to the detection voltage being greater than or equal to a reference voltage, and to determine the material of the vehicle body part as a second material in response to the detection voltage being less than the reference voltage.