Radar Bumper Quality Evaluation With Angle-Compensated Reflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle body structure evaluation methods fail to consider the influence of the angle and temperature on the intensity of reflected electromagnetic waves, leading to reduced detection accuracy of in-vehicle detectors, which affects traffic safety.
Innovation Solution
A vehicle body structure quality evaluation device and method that measures intensity parameters, acquires angle and temperature information, and compensates intensity values to evaluate the quality of the vehicle body structure, considering the influence of these factors on the reflected wave intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bumper is provided to shield the detector from external impact and dirt, then the detector is protected, but the intensity of reflected electromagnetic waves is reduced when the coating film is thicker than necessary
Solution Approach 1:
The invention changes the evaluation parameters from simple intensity measurement to intensity measurement combined with angle information. By introducing angle parameters (elevation angle and azimuth angle) into the evaluation system, the invention can distinguish between intensity reductions caused by thick coating films versus those caused by angular variations in target reflection, thereby resolving the contradiction between protection and intensity maintenance.
2Measurement precision
If the intensity of reflected waves is used to evaluate bumper quality, then evaluation can be performed, but the accuracy deteriorates because angle influence on reflected wave intensity is not considered
Solution Approach 1:
The invention introduces angle information as an intermediary parameter that mediates between the raw intensity measurement and the final quality evaluation. By using angle information to compensate for angular effects, the system can maintain high evaluation accuracy without requiring complex additional hardware, thus resolving the contradiction between precision and complexity.
3Strength
If the coating film on the bumper is made thicker for better protection, then the bumper provides better shielding, but the electromagnetic wave transmission accuracy decreases
Solution Approach 1:
The invention changes the evaluation approach by incorporating angle information into the intensity measurement system. This allows the system to accommodate varying coating thicknesses while maintaining accurate evaluation capability, as the angle compensation can distinguish between intentional thickness variations for protection and defects that would compromise transmission accuracy.
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
Enhances the accuracy of evaluating vehicle body structure quality, preventing detection accuracy deterioration and improving traffic safety by considering the angle and temperature effects on reflected wave intensity.
Implementation Method 1
a detector (2) that detects a target (T) by transmitting and receiving electromagnetic waves
Implementation Method 2
when a coating film formed on the design surface of the bumper is thicker than necessary, the electromagnetic waves passing through the bumper from the detector and irradiated to the external target and the reflected waves passing through the bumper from the external target and received by the detector may be reduced in intensity
Data Source
AI summary
An evaluation device (1) evaluates a quality of a bumper (3) in a vehicle including a radar (2) that detects a target (T) by irradiating an outside of a vehicle body (B) with an electromagnetic wave along an optical axis and the bumper (3) that shields the radar (2). The evaluation device (1) includes an intensity parameter measurer (11) that measures an intensity parameter value of the reflected wave passing through the bumper (3) and received from the target (T) by the radar (2), an angle information acquirer (12) that acquires angle information on an angle of a direction of arrival of the reflected wave from the target (T) with respect to the optical axis; and a quality evaluator (15) that evaluates the quality of the bumper (3), based on the intensity parameter value, a predetermined reference value for the intensity parameter value, and the angle information.