Augmented Reality Quiet Zone Positioning for DUT
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Solution Overview
Problem
Existing methods for positioning a device under test within a test area, such as anechoic chambers, lack accuracy and efficiency due to the absence of quiet zone consideration, leading to reduced measurement precision and repeatability.
Innovation Solution
A method utilizing augmented reality techniques to determine the shape and quality of the quiet zone, combined with three-dimensional modeling and camera usage, to accurately position the device under test, ensuring precise placement within the quiet zone, even in compact environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional biaxial positioner is used for positioning device under test, then positioning function is provided, but measurement precision and repeatability are limited due to lack of quiet zone consideration
Solution Approach 1:
The patent introduces an augmented reality system as an intermediary between the traditional positioner and the device under test. This AR system uses cameras to capture images, processes them to determine quiet zone characteristics, and provides visual guidance to optimize positioning. The intermediary AR layer enhances measurement precision by enabling accurate identification of the quiet zone boundaries and optimal device placement, while the physical positioner hardware remains relatively simple.
2Reliability
If quiet zone optimization is implemented through augmented reality, then positioning accuracy and measurement precision are improved, but system complexity and computational requirements increase
Solution Approach 1:
The system implements feedback by capturing images of the test environment, processing them to determine quiet zone characteristics, and using this information to guide positioning decisions. The augmented reality overlay provides real-time visual feedback showing the device's position relative to the optimal quiet zone location, allowing operators to adjust positioning for maximum measurement repeatability. This closed-loop feedback mechanism enhances reliability without requiring complex hardware modifications.
Solution Approach 2:
The patent creates a virtual copy or representation of the physical test environment through image processing and augmented reality visualization. Instead of modifying the physical positioning system extensively, the invention superimposes a digital model of the quiet zone onto the real-world view, allowing operators to see and respond to positioning information that would otherwise be invisible. This copying approach improves measurement reliability while keeping the physical system relatively simple.
3Measurement precision
If three-dimensional positioning is implemented, then full identification of device position is achieved and repeatability is improved, but measurement and detection difficulty increases
Solution Approach 1:
The augmented reality system acts as an intermediary that simplifies three-dimensional position measurement. By using cameras to capture two-dimensional images and processing them to infer three-dimensional spatial relationships, the system provides visual guidance for positioning without requiring complex three-dimensional measurement hardware. The AR overlay translates complex spatial information into intuitive visual cues that operators can easily interpret.
Data Source
AI summary
A method for positioning a device under test within a test area is provided. The method comprises the steps of determining shape and/or quality of a quiet zone with respect to the device under test, and using an augmented reality technique in order to optimize the positioning of the device under test in the quiet zone.