Inflatable Antenna Positioning System with Lockable Pivoting Connections
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Solution Overview
Problem
Establishing effective communication networks in remote or emergency situations is challenging due to the difficulty in positioning and supporting portable, inflatable antennas for satellite communications.
Innovation Solution
A collapsible antenna positioning system with a base assembly, azimuth drive, and lockable pivoting connections, along with stabilizing struts and drive actuators, ensures the antenna remains deployed and securely positioned for communication with geo-stationary satellites, using lightweight and durable materials for portability and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If portable inflatable antennas are used for remote communication, then portability and deployability are improved, but positioning and support capability deteriorates
Solution Approach 1:
The positioning system is divided into separate functional modules: base assembly with azimuth drive, independent elevation mechanism, support members, and stabilizing struts. This segmentation allows each component to be optimized independently while maintaining overall portability and positioning reliability.
Solution Approach 2:
The system includes pre-configured lockable pivoting connections and pre-positioned support members that are ready for deployment. The azimuth and elevation drives are pre-assembled on the base, eliminating the need for complex field assembly and ensuring reliable positioning from the moment of deployment.
2Volume of moving object
If collapsible support structure is used, then portability is improved, but structural stability deteriorates
Solution Approach 1:
The support members are designed to be collapsible during transport but lock into stable configurations during operation. The lockable pivoting connections enable dynamic transition between compact storage state and stable deployed state, maintaining structural integrity when needed while minimizing volume during transport.
Solution Approach 2:
Stabilizing struts act as intermediary elements that connect the base assembly to the support members, providing additional structural reinforcement during operation. These struts can be deployed to enhance stability without interfering with the collapsible nature of the main support structure during storage.
3Measurement precision
If drive mechanisms are added for positioning, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The base assembly serves multiple functions: it houses the azimuth drive mechanism, supports the elevation mechanism, provides mounting for stabilizing struts, and acts as the foundation for the entire positioning system. This multi-functionality reduces the need for separate components, thereby reducing overall system complexity while maintaining positioning accuracy.
Solution Approach 2:
The lockable pivoting connections are designed to be self-latching, requiring minimal intervention to maintain position. The drive mechanisms are integrated directly into the base assembly, eliminating the need for external mounting structures and reducing the number of components that require assembly and maintenance.
Data Source
AI summary
An apparatus for positioning and controlling a spherical, inflatable antenna includes a driven rotating table disposed in the horizontal plane which supports and drives a horizontal arm member to which is hingedly connected first and second upright support members at either end. The upright support members include journal bearings attachable to the surface of an inflatable antenna.