Drone Antenna Directionality Control for Proximity Interference
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Solution Overview
Problem
The issue of radio wave interference between multiple drones operating in proximity, leading to deterioration of wireless communication quality and potential operational hindrance, is addressed.
Innovation Solution
A method involving position identification, reception of specific information from a second mobile body, and antenna directionality control based on positional relations to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple drones share a particular frequency band for wireless communication, then the quantity of drones that can operate is increased, but radio wave interference occurs leading to deterioration of communication quality
Solution Approach 1:
The patent applies local quality by making the antenna characteristics (directionality, gain, beamwidth) spatially adaptive. The antenna system adjusts its radiation pattern locally in different directions based on the positions of nearby drones, concentrating energy toward the intended receiver while creating nulls or reduced gain toward interfering drones. This spatial differentiation allows multiple drones to share frequency bands by ensuring each communication link has localized quality optimized for its specific geometric configuration.
2Productivity
If drones operate in proximity to each other using the same frequency band, then productivity is improved, but harmful radio wave interference affects operation stability
Solution Approach 1:
The patent converts the harmful effect of radio wave interference into a beneficial outcome by using the known positions of interfering drones to shape the antenna radiation pattern. The system identifies the directions of interfering signals and deliberately creates nulls or low-gain regions in those directions, while simultaneously concentrating energy toward desired receivers. This transforms the presence of interfering drones from a purely harmful factor into an input parameter that enables adaptive pattern shaping, thereby maintaining productivity while eliminating interference.
3Reliability
If antenna directionality is adjusted to avoid interference from second mobile bodies, then communication reliability is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent implements feedback by continuously monitoring the positions of the mobile body, communication device, and second mobile bodies, then using this information to dynamically adjust antenna directionality. The system establishes a closed-loop control where positional data feeds into the antenna control mechanism, which adjusts radiation patterns in response to changing interference conditions. This feedback mechanism enables the system to maintain reliable communication adaptively without requiring overly complex predetermined control strategies.
Data Source
AI summary
Provided is an information processing method including a position identification step, a second-machine information reception step, a positional relation identification step, and an antenna control step.