UAV Radio Shield Positioning for Directional Interference Control
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face interference and blocking issues due to harmonics and imperfect selectivity in radio transceivers, particularly when operating in close proximity to ground services, leading to potential interference and blocking, despite existing coordination zones and power restrictions.
Innovation Solution
An aerial vehicle equipped with a radio transceiver device and a mechanical shield that can be positioned to reduce radio transmission power in specific directions, controlled by a processor to manage movement, shield positioning, and radio communication, thereby minimizing interference and blocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If UAVs operate in close proximity to ground services using existing frequency bands, then communication coverage and connectivity are improved, but interference and blocking towards ground services occur due to harmonics and imperfect selectivity
Solution Approach 1:
The patent applies local quality by implementing direction-specific transmission power control. The UAV adjusts its transmit power based on the spatial location of ground services, allowing high power in directions away from ground services while reducing power in directions toward them. This spatially differentiated approach maintains coverage in safe directions while minimizing interference toward vulnerable ground services.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting transmission power levels based on operational context. The UAV modifies its transmit power parameter in response to detected ground service locations and coordination zone boundaries, changing from high power (when away from ground services) to reduced power (when near or in coordination zones), thereby balancing coverage needs with interference prevention.
2Object-affected harmful factors
If coordination zones are established around ground services to protect them, then interference protection is improved, but UAV operational flexibility and access to frequency bands deteriorate
Solution Approach 1:
The patent applies dynamics by implementing adaptive, real-time adjustment of transmission parameters based on UAV position and ground service locations. Rather than static no-fly zones, the system dynamically calculates coordination zone boundaries and adjusts transmit power accordingly, allowing UAVs to operate flexibly within protected areas when conditions permit while automatically reducing power when approaching ground services.
Solution Approach 2:
The patent employs feedback mechanisms where the UAV continuously monitors its position relative to ground services and receives information about coordination zones. This feedback loop enables the UAV to adjust its transmission power in real-time, maintaining operational flexibility while ensuring protection of ground services through automatic power reduction when entering coordination zones.
3Object-affected harmful factors
If transmit power is reduced within coordination zones, then interference risk is decreased, but communication reliability and coverage quality deteriorate
Solution Approach 1:
The patent applies local quality by implementing direction-specific and location-specific power control. The UAV maintains high transmit power in directions and locations away from ground services to ensure communication reliability, while locally reducing power only in directions toward and within coordination zones. This selective approach preserves overall communication quality while minimizing interference risk.
Solution Approach 2:
The patent employs partial action by reducing transmit power only partially and only in specific directions toward ground services, rather than uniformly reducing power in all directions. This selective partial reduction maintains sufficient power levels for reliable communication in most directions while providing targeted interference protection where needed.
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 solution enables efficient radio emission control, allowing UAVs to operate within restricted zones without explicit radiation control, effectively reducing interference and blocking, and is applicable across various frequency bands.
Implementation Method 1
a mechanical shield positioned to reduce power of the radio transmission in at least some of the radiation directions in the set of radiation directions
Data Source
AI summary
An aerial vehicle includes a radio transceiver device configured for radio transmission in a set of radiation directions. The aerial vehicle includes a mechanical shield positioned to reduce power of the radio transmission in at least some of the radiation directions in the set of radiation directions. The aerial vehicle further includes a controller configured to control at least one of: movement of the aerial vehicle, movement of the mechanical shield, radio communication of the aerial vehicle via the radio transceiver device.