3D Rotating Direction Indicator for True Spatial Orientation
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Solution Overview
Problem
Current mobile computer devices cannot accurately display true three-dimensional orientation and direction information due to limitations of 2D screens, which restrict their ability to provide precise spatial orientation and position information, especially when viewed from different angles or by multiple users.
Innovation Solution
A device with a three-dimensional direction indicator that includes a rotating indicator member within a static member, actuator arrangement, and a processor to calculate and display angles in three dimensions, allowing for hands-free and viewer-position-free directional information from any angle up to 360°, suitable for various applications including navigation and underwater use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a 2D LCD screen is used to display orientation information, then the display is clear and can be seen from different viewing angles, but it cannot display a true three-dimensional image to accurately indicate three-dimensional orientation
Solution Approach 1:
The patent transitions from 2D screen display to 3D physical indication by using a spherical indicator that rotates in three-dimensional space. The sphere with cardinal direction markings provides true 3D orientation representation that matches the device's spatial orientation, resolving the limitation of 2D screens无法准确显示三维方向的问题
Solution Approach 2:
The patent creates a physical copy of the three-dimensional orientation data by using a tangible rotating sphere that replicates the device's spatial orientation. This physical model serves as a direct visual analog of the device's attitude in space, providing intuitive orientation information without requiring complex 3D rendering on a 2D screen
2Ease of operation
If a 2D screen displays a perspective picture of a pointer, then it can show direction, but the accuracy is limited to a restricted viewing angle
Solution Approach 1:
The patent eliminates viewing angle limitations by moving from 2D perspective display to a 3D rotating sphere. The spherical indicator can be viewed from any angle around the device (360° accessibility), and the directional accuracy is maintained regardless of viewing position because the physical sphere itself rotates to align with the actual direction
3Measurement precision
If an autostereoscopic screen with lenticular lens or parallax barrier is used, then it can provide three-dimensional display, but the viewing angle is limited and image distorts outside the restricted angle
Solution Approach 1:
The patent avoids the viewing angle limitations of autostereoscopic screens by using a physical 3D rotating sphere instead of optical illusions on a 2D surface. The sphere can be viewed from any angle in three-dimensional space without image distortion, as the physical object itself rotates to present the correct orientation information from any viewing position
Solution Approach 2:
The patent employs a dynamically rotating sphere that actively adjusts its orientation to match the device's spatial attitude. This dynamic rotation ensures that the indicator remains accurate from any viewing angle, unlike static autostereoscopic displays that only work within limited viewing cones
4Extent of automation
If a 2D screen is used, then it can display information, but it cannot provide hands-free and viewer-position-free three-dimensional directional information
Solution Approach 1:
The patent implements a self-service orientation indicator where the rotating sphere automatically displays the device's spatial orientation without requiring user intervention to manually rotate or interpret 2D representations. The system autonomously maintains the indicator's alignment with the device's attitude, providing continuous hands-free, viewer-position-free three-dimensional directional information
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 and simultaneous three-dimensional directional information display from any angle, enhancing usability in diverse environments and applications by providing a true representation of orientation and direction, overcoming the limitations of 2D screens.
Implementation Method 1
The actuator arrangement can be configured to generate an electromagnetic field, and the indicator member can be configured to respond to changes in the electromagnetic field to rotate.
Implementation Method 2
The indicator member includes a magnetic arrangement for interaction with the electromagnetic field.
Data Source
AI summary
A device for indicating a direction or axis in three dimensions to a user, comprises an indicator member (10, 11) configured to indicate a direction in any three dimensional direction,—a static member (12) for mounting the indicator member; and an actuator arrangement (12, 14, 15) configured to urge the indicator member to rotate relative to the static member in any angle about a single point of rotational symmetry. A direction indicating arrangement calculates an angle in three dimensions for indicating a direction and comprises a drive arrangement (13, 14, 15) that drives a pointing device (10, 11) to point in the calculated direction. An apparatus for providing information on a location in a direction comprises a pointing device comprising a mount and a direction indicator moveable by a user to point in a direction in three dimensions; a detection arrangement for detecting the orientation of the direction indicator; a processor programmed to determine the direction using the detected orientation; and a display for displaying information on the direction.