AR Sensor Mounting Segmentation for Precision
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Solution Overview
Problem
Existing augmented reality (AR) systems face challenges in minimizing or eliminating positioning and tracking errors due to the flexibility of AR systems impacting the sensor-to-sensor rigid relationship, leading to misalignment of computer-generated images with respect to the real environment.
Innovation Solution
The development of high accuracy displacement devices that include a threaded shaft, motor, carriage, and bearing assembly, allowing for precise adjustment of camera or sensor positions with sub-arcminute and sub-millimeter accuracy, thereby reducing tracking and positioning errors in AR systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If AR systems use flexible components for sensor mounting, then ease of assembly and adaptability improve, but positioning accuracy and tracking precision deteriorate
Solution Approach 1:
The sensor mounting system is divided into separate modular components: a rigid base structure, adjustable mounting brackets, and secure fastening mechanisms. This segmentation allows each component to be optimized independently - the base provides stability while the brackets enable precise positioning adjustments without compromising overall rigidity.
Solution Approach 2:
The mounting system incorporates adjustable and reconfigurable elements that allow dynamic adaptation during assembly and maintenance while maintaining rigid connections during operation. This includes adjustable brackets that can be positioned and locked at specific locations, providing both ease of assembly and operational precision.
2Adaptability or versatility
If AR systems use flexible components for sensor mounting, then adaptability improves, but tracking precision and image alignment deteriorate
Solution Approach 1:
The system employs dynamically adjustable mounting structures that can be configured for different sensor types and positions during assembly, then locked into rigid fixed positions during operation. This allows the system to adapt to various sensor configurations while maintaining the structural rigidity needed for precise tracking and image alignment.
Solution Approach 2:
Different portions of the mounting system have different properties - the connection points and mounting interfaces are designed with high rigidity and precision features, while other portions allow for adjustment and reconfiguration. This local differentiation enables both adaptability during setup and precision during operation.
3Measurement precision
If rigid structures are used for sensor mounting, then positioning accuracy improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The rigid mounting structure is segmented into standardized modular components that can be manufactured independently using conventional processes. Each module provides a specific function (mounting, positioning, securing) and can be assembled through straightforward procedures, reducing overall complexity while maintaining rigidity and precision.
Solution Approach 2:
The mounting system uses universal standardized components and interfaces that can accommodate different sensor types and configurations. This multi-functionality reduces the need for custom-designed rigid structures for each application, simplifying manufacturing while maintaining positioning accuracy through standardized precision features.
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
These high accuracy displacement devices enable precise control of camera or sensor positions, achieving positional accuracy between 0.1 micrometers (μm) to 1 μm, which significantly reduces tracking and positioning errors in AR systems, allowing for more accurate overlay of computer-generated images onto the real environment.
Implementation Method 1
a threaded shaft having a first end and a second end and a shaft axis extending therebetween; a motor that actuates the threaded shaft to move in a direction of the shaft axis
Implementation Method 2
a bearing assembly coupled to the threaded shaft and the carriage, the bearing assembly permitting a movement of the carriage with respect to the threaded shaft
Data Source
AI summary
Devices are described for high accuracy displacement of tools. In particular, embodiments provide a device for adjusting a position of a tool. The device includes a threaded shaft having a first end and a second end and a shaft axis extending from the first end to the second end, a motor that actuates the threaded shaft to move in a direction of the shaft axis. In some examples, the motor is operatively coupled to the threaded shaft. The device includes a carriage coupled to the camera, and a bearing assembly coupled to the threaded shaft and the carriage. In some examples, the bearing assembly permits a movement of the carriage with respect to the threaded shaft. The movement of the carriage allows the position of the camera to be adjusted.