Reflector Position Adjustment Device for Radar Detection Accuracy
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Solution Overview
Problem
Current methods for positioning radar devices and reflectors in wave dark boxes lack the precision needed for accurate detection, with existing laser-based positioning methods only achieving ±0.1 degrees of accuracy, limiting the ability to achieve highly accurate positioning and detection beyond this margin.
Innovation Solution
A position adjustment device that uses a screen member and a light emitting portion with a rotary axis, temporarily fixed at regular intervals, to beam laser light perpendicular to the screen member, allowing for precise adjustment of the reflector's position by centering the laser spots on a circle circumference, thereby correcting variations and enabling more precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser pointer is used for positioning the mounting table and reflector, then the positioning can be performed with ±0.1 degrees accuracy, but highly accurate positioning and detection exceeding ±0.1 degrees cannot be achieved
Solution Approach 1:
The positioning process is divided into two stages: rough positioning using the laser pointer to achieve ±0.1 degrees accuracy, and fine positioning by adjusting the reflector's attitude angles. This segmentation allows each stage to optimize for its specific precision requirements without being constrained by the other stage's limitations.
Solution Approach 2:
The reflector is equipped with adjustable mounting structures that allow dynamic adjustment of its attitude angles (azimuth and elevation). This dynamic adjustment capability enables the system to achieve high detection accuracy by fine-tuning the reflector's orientation after initial laser-based positioning, rather than relying solely on static positioning accuracy.
2Measurement precision
If the reflector position is adjusted manually to achieve precise alignment, then detection accuracy can be improved, but the process requires significant manual labor and time
Solution Approach 1:
The system uses detection results as feedback to guide further position adjustments. By measuring the radar device signals and analyzing the reflected waves, the system can determine whether the reflector positioning is accurate and provide feedback for iterative refinement, reducing the need for extensive manual trial-and-error adjustments.
Solution Approach 2:
The adjustable mounting structure allows the reflector to self-adjust its position based on the detected signal quality. The system automatically identifies optimal positioning through signal analysis, reducing reliance on continuous manual intervention and significantly decreasing adjustment time while maintaining high detection accuracy.
3Device complexity
If the reflector is fixed in position after initial setup, then the device complexity is reduced, but any position drift or inaccuracy cannot be corrected
Solution Approach 1:
The mounting structure transitions from a static fixed state to a dynamic adjustable state. The reflector can be positioned and then locked at optimal locations, providing both the flexibility to achieve precise initial alignment and the stability to maintain position during detection. The adjustable design allows for correction of position drift without requiring complete repositioning.
Solution Approach 2:
The system performs preliminary positioning using the laser pointer to establish accurate initial alignment before final detection. This preliminary action ensures that the reflector is pre-positioned within acceptable tolerances, reducing the burden on the mounting structure to maintain absolute precision without adjustment mechanisms.
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 solution allows for highly precise positioning of the reflector, improving detection accuracy and reducing manual labor through automated transportation and power connection mechanisms, enabling more efficient and accurate radar device detection.
Implementation Method 1
a light emitting portion that is disposed to face the screen member and beams laser light in a direction substantially perpendicular to the screen member
Implementation Method 2
The reflector is placed so as to face a radar device that is fixed to a fixing table, and reflects radio waves beamed from the radar device
Data Source
AI summary
laser light is beamed substantially perpendicular to a screen member, while temporarily fixing the laser transmitter at three of more points at regular intervals in a rotary direction about the rotary axis TA. The rotary axis TA is defined by a straight line that passes through the light emitting opening of the laser transmitter and is substantially perpendicular to the screen member. The beamed direction of the laser light beamed from a laser transmitter is adjusted by a transmitter position adjustment portion so as to make the laser light hit the center of the three or more points on the screen member.