Antenna Automatic Alignment for Mobile Objects
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Solution Overview
Problem
Existing antenna alignment systems for unmanned aerial vehicles are complex and bulky, making them unsuitable for wireless communication, as they rely on servo gimbals and do not efficiently maintain stability and reliability of communication links due to varying antenna positions and orientations.
Innovation Solution
A method and system for automatic antenna alignment on mobile objects, which involves acquiring real-time feature information of multiple antennas, including spare antennas, and selecting the optimal antenna for communication based on signal state and position information to ensure continuous and reliable communication without the need for bulky servo gimbals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a servo gimbal is used to dynamically adjust antenna positions, then communication link stability is improved, but device complexity and volume increase
Solution Approach 1:
The antenna system is divided into multiple independent antenna elements arranged in specific spatial patterns (e.g., uniform linear array, uniform planar array). Each antenna element can be independently controlled and selected, allowing the system to achieve stable communication by switching between different segments rather than mechanically adjusting a single antenna.
Solution Approach 2:
The system dynamically selects and switches between different antenna elements based on real-time communication requirements, mobile object position, and signal quality. This dynamic switching is controlled by a processor that monitors communication status and automatically changes the active antenna element without mechanical movement.
Solution Approach 3:
The patent replaces the mechanical servo gimbal system with an electronic switching system. Instead of physically moving antennas using motors and gimbals, the system uses electronic switches to connect different antenna elements to the transmitter/receiver, eliminating complex mechanical components while maintaining communication stability.
2Reliability
If a servo gimbal is used to dynamically adjust antenna positions, then communication link stability is improved, but volume increases
Solution Approach 1:
Multiple antenna elements are arranged in compact spatial patterns such as uniform linear arrays or uniform planar arrays, allowing the system to provide omnidirectional or multi-directional coverage within a small volume. The segmented antenna elements can be tightly integrated into the mobile object structure.
Solution Approach 2:
The same set of compact antenna elements serves multiple functions: they can be selectively activated for different communication directions, frequencies, and modes. The processor controls which antenna elements are active based on real-time needs, making the compact array universally applicable for various communication scenarios without requiring separate antenna systems for different directions.
3Device complexity
If multiple antennas are used with automatic switching, then structure is simplified and volume is reduced, but maintaining optimal alignment becomes more challenging
Solution Approach 1:
The system incorporates feedback mechanisms where the processor continuously monitors communication signal quality, mobile object position, and antenna performance. Based on this feedback, the processor automatically adjusts which antenna element is active and can adjust transmission parameters to maintain optimal communication alignment without manual intervention.
Solution Approach 2:
The antenna elements are pre-positioned in specific geometric arrangements (uniform linear arrays, uniform planar arrays) that are calculated in advance to provide optimal coverage for expected movement patterns. The processor has pre-programmed switching logic and lookup tables that enable rapid selection of the best antenna element based on predicted or measured position changes, maintaining alignment precision without real-time mechanical adjustment.
Data Source
AI summary
An antenna automatic alignment method for a mobile object includes acquiring, in real time, current feature information of a plurality of antennas of the mobile object, and selecting one of the antennas to establish a communication link with a wireless terminal in accordance with the current feature information of the plurality of antennas.