Spherical Motor Positioning for Antenna Rotation
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Solution Overview
Problem
Existing electro-mechanical systems for reorienting objects, such as parabolic antennas, face limitations in achieving full rotational freedom due to physical interference when multiple axes of rotation are required, particularly hindering below-horizon aiming and power/data transfer.
Innovation Solution
A spherical motor system comprising a partially spherical structure and rotatable arms that define a void, allowing for independent rotation and reduced physical interference, enabling greater angular freedom and efficient power/data transfer through electromagnetic induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent electro-mechanical systems are added to achieve multi-axis rotation, then rotational capability is improved, but physical interference between systems increases and limits the degree of freedom
Solution Approach 1:
The patent merges multiple rotation axes into a single integrated spherical structure where all axes share a common center point. This eliminates the need for separate electro-mechanical systems for each axis, thereby reducing physical interference while maintaining multi-axis rotational capability. The spherical design allows all rotation axes to coexist without occupying conflicting spatial volumes.
Solution Approach 2:
The patent transitions from traditional planar or linear rotation systems to a three-dimensional spherical coordinate system. By defining rotation axes in three dimensions (azimuth, elevation, and radial directions), the system achieves greater rotational freedom without the physical interference that plagues multi-layered planar systems. This dimensional reorganization allows axes to pass through each other's turning radii without collision.
2Area of stationary object
If the turning radius of rotational systems is reduced to minimize physical interference, then space utilization is improved, but the degree of freedom in each axis is limited
Solution Approach 1:
The patent employs a spherical coordinate system that utilizes three-dimensional space efficiently. By distributing rotation axes across different spatial dimensions (horizontal, vertical, and radial), the system achieves full degree of freedom without requiring large turning radii in any single plane. Each axis operates in its own dimensional niche, maximizing space utilization while preserving rotational freedom.
Solution Approach 2:
The patent implements a nested configuration where multiple rotation axes are concentrically arranged around a common center point. The arms and rotation mechanisms are nested within the spherical volume, with each axis capable of rotation without interfering with others. This nested arrangement minimizes the external footprint while maintaining the full range of motion for each axis.
3Measurement precision
If electro-mechanical systems are added for multi-axis rotation, then positioning capability is improved, but power and data transfer to the subject object becomes complicated
Solution Approach 1:
The patent combines power and data transfer functions into a single integrated arm structure that rotates with the subject object. This eliminates the need for separate rotary joints and cables for each axis, simplifying the power and data transfer system while maintaining precise positioning capability. The unified arm structure provides stable, interference-free connections throughout the range of motion.
4Device complexity
If traditional electro-mechanical systems are used for below-horizon aiming, then structural simplicity is maintained, but severe angular freedom of motion cannot be achieved
Solution Approach 1:
The patent adopts a spherical geometry for the rotation system, allowing the subject object to be positioned at any point on or within the spherical volume. This spherical design naturally accommodates below-horizon aiming and severe angular positions that would be impossible with traditional planar or gimbal-based systems. The curved spherical paths enable the subject object to reach extreme angles while maintaining structural elegance and simplicity.
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
The spherical motor system enhances rotational freedom, particularly for below-horizon aiming, while minimizing physical interference and ensuring reliable power and data transfer to the antenna, overcoming limitations of traditional systems.
Implementation Method 1
enabling greater angular freedom and efficient power/data transfer through electromagnetic induction
Data Source
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AI summary
According to the invention, a system for rotating a parabolic antenna about a central point is disclosed. The system may include a support member, a spherical structure, and at least one arm. The support member may be coupled with a surface and may also be coupled with the support member. The spherical structure may be at least partially spherical in shape about the central point. The spherical structure may include a first plurality of magnets. The at least one arm may be in proximity to the spherical structure and may also include a second plurality of magnets. The at least one arm may be coupled with the parabolic antenna, and at least a portion of the magnets in either one of, or both of, the first plurality of magnets and the second plurality of magnets may be configured to be selectively activated to rotate the arms about the central point.