UAV Geolocation Broadcasting via Network Nodes
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Solution Overview
Problem
Current systems lack an efficient method for unmanned aerial vehicles (UAVs) to broadcast their geolocation information, which is essential for collision avoidance and safe operation, especially in environments where traditional ADS-B systems may cause interference or latency issues.
Innovation Solution
UAVs determine their geolocation using a geolocation service and broadcast this information via radio frames using protocols like 3GPP, WiFi, or low-power wide-area networks, allowing other UAVs and network nodes to receive and rebroadcast this data for collision avoidance and airspace management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UAVs use traditional ADS-B systems for broadcasting geolocation information, then aircraft position can be broadcast to other aircrafts and air traffic control ground stations, but safety concerns arise due to interference and latency issues in integrating UTM to ADS-B systems
Solution Approach 1:
The patent introduces a network node as an intermediary between UAVs and ground stations. The network node receives geolocation information from UAVs via uplink transmissions and rebroadcasts it via downlink transmissions, thereby mediating the communication and eliminating direct interference between UAVs while maintaining reliable position broadcasting
Solution Approach 2:
The patent replaces the traditional ADS-B mechanical broadcast system with a network-based communication system using network nodes. This substitution eliminates the harmful interference and latency inherent in direct ADS-B operations while maintaining the ability to broadcast geolocation information to multiple recipients
2Productivity
If a centralized system is used to manage UAV geolocation information, then coordination can be achieved, but the system becomes too slow and cannot scale when there are many UAVs in its coverage
Solution Approach 1:
The patent segments the centralized system into distributed network nodes that operate autonomously. Each network node independently receives and rebroadcasts geolocation information from nearby UAVs, eliminating the bottleneck of a single centralized processor while maintaining coordinated information sharing across the entire UAV fleet
Solution Approach 2:
The network nodes perform self-service by automatically receiving and rebroadcasting geolocation information without requiring centralized authorization or processing. This self-service capability enables rapid scaling and high-speed operation as each node independently manages its own broadcasting function
3Adaptability or versatility
If UAVs broadcast geolocation information using existing radio protocols, then compatibility with current infrastructure is maintained, but no dedicated mechanism exists for efficient UAV-to-UAV communication
Solution Approach 1:
The patent makes the network node universal by enabling it to handle multiple types of communications including UAV-to-ground station uplink transmissions and ground station-to-UAV downlink transmissions. This multi-functionality allows the same infrastructure to support both traditional operations and new UAV-to-UAV geolocation broadcasting without requiring separate dedicated systems
Data Source
AI summary
Broadcasting geolocation information of an Unmanned Aerial Vehicle (UAV) from the UAV by determining current geolocation of the UAV by communicating with a geolocation service and utilizing the geolocation service to geolocate the UAV. Then the UAV prepares a radio frame that includes geolocation information identifying the current geolocation of the UAV and other information associated with the UAV using a radio protocol of one of a 3rd Generation Partnership Project (3GPP) radio protocol, a WiFi radio protocol, a wireless personal area network protocol and a low-power wide-area network protocol and transmits the radio frame to broadcast the current geolocation of the UAV.