Relay Drone Positioning for Line-of-Sight Data Links
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Solution Overview
Problem
Current drone communication systems face challenges in maintaining efficient and reliable data relay between base stations and working drones, especially when line of sight is obstructed or when drones are in motion, leading to signal loss and reduced operational range.
Innovation Solution
The implementation of a relay drone system that uses omnidirectional and directional antennas to maintain a line of sight with both the base station and working drones, dynamically adjusting its position to ensure continuous communication links, even when the base station and working drones are separated, and employing autonomous flight patterns to compensate for environmental obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a direct communication link is used between base station and working drone, then communication simplicity is maintained, but communication reliability deteriorates when line of sight is obstructed or drones are in motion
Solution Approach 1:
The patent introduces relay drones as intermediary devices between the base station and working drone. These relay drones carry communication equipment and dynamically position themselves to maintain line-of-sight connections, acting as mobile relays that forward signals when direct communication is blocked. This resolves the contradiction by adding intermediate nodes to ensure reliable communication without requiring complex direct-link maintenance mechanisms.
Solution Approach 2:
The relay drones are equipped with autonomous navigation capabilities that allow them to dynamically adjust their positions in real-time to maintain optimal line-of-sight connections with both the base station and working drone. This dynamic positioning capability ensures continuous reliable communication while keeping the system architecture relatively simple, as the complexity is managed through autonomous algorithms rather than manual control.
2Adaptability or versatility
If omnidirectional antennas are used for communication, then coverage area is maximized, but energy consumption increases
Solution Approach 1:
The system dynamically switches between omnidirectional and directional antenna modes based on operational requirements. When the relay drone needs to establish initial contact or maintain coverage over a wide area, omnidirectional antennas are used. When a stable point-to-point connection is established, the system transitions to directional antennas to reduce energy consumption. This dynamic adaptation resolves the contradiction between coverage and energy efficiency.
Solution Approach 2:
Different antenna types are deployed in different spatial contexts: omnidirectional antennas are used when broad coverage is needed (such as during initial acquisition or when the working drone is moving unpredictably), while directional antennas are used when focused communication is sufficient (such as during stable data transmission). This localized application of different antenna qualities optimizes both coverage and energy usage.
3Reliability
If relay drones dynamically adjust position to maintain line of sight, then communication continuity is improved, but operational complexity increases
Solution Approach 1:
The relay drones are equipped with autonomous navigation systems that enable them to self-adjust their positions without manual intervention. The drones use onboard sensors and communication modules to detect line-of-sight conditions and automatically navigate to optimal positions, thereby maintaining communication continuity while eliminating the need for complex manual operational procedures. This self-service capability resolves the contradiction by automating the position adjustment process.
Solution Approach 2:
The system implements continuous feedback loops where the relay drones monitor communication link quality and line-of-sight conditions in real-time. Based on this feedback, the autonomous navigation systems automatically adjust drone positions to maintain optimal connections. This feedback-driven automation ensures communication continuity while keeping operational complexity low, as the system self-regulates without requiring complex external control mechanisms.
Data Source
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AI summary
Systems and methods are provided for a network of relay drones utilized as a set of relays or linkages between a base station and a working drone controlled by the base station. The relay drones in the network may augment a communication link or communication signal between the base station and working drone. Relay drones may augment the communication link by acting as nodes that relay communication between the base station and the working drone by boosting the communication signal at each node to compensate for loss of signal power over a traveled distance and/or providing a path with a direct line of sight between the base station and working drone. Directional antennas may be utilized when a direct line of sight is established, which may improve communication signal efficacy when compared with omnidirectional antennas.