Beyond Line of Sight BLOS FANET

Indholdsfortegnelse

We are a startup specializing in system design and integration services. Our focus lies in providing innovative electronic and mechanical design solutions for small businesses. As part of our ongoing projects. We are seeking your assistance with a service that aligns with the products and offerings provided by your company. Below, we have outlined the specific details of our requirements.

Wildfire surveying drone system description:

Lately one of our costumers asked for a feasible solution to set up a Drone network for wildfire surveying a beyond line of sight, by providing real-time data and video, and operate over long distances. For the reason to cover large areas since we are such a big country, we have proposed this architecture:

A mother UAV capable of flying up to 6 km in altitude and covering a distance of 50 km, controlled directly via line-of-sight (DET) from the ground control station (GCS). The mother UAV is equipped with a high-resolution inspection camera that transmits a high-quality video stream downlink to the GCS, and it exchanges command and telemetry data with the GCS through full-duplex, two-way communication.

Derudover, there are six daughter quadcopter drones that connect exclusively to the mother UAV via two-way telemetry data and send their video streams to the mother UAV, which acts as a relay to transmit all data to the GCS. The daughter drones can operate simultaneously, and both the mother UAV and the daughter drones can be commanded from the GCS. The maximum distance between the mother UAV and the daughter quadcopters is set to 15 km LOS which make it possible to cover a large area and establish beyond line-of-sight system.

Fig. overview of the working scenario with all the communication links.

Here’s how it can be applied effectively:

1. Mother UAV as Command-and-Control Center

High-altitude, long-range surveillance: The mother UAV, with its ability to fly up to 6 km in altitude and cover 50 km, can act as a high-altitude observation platform for the overall fire area. It can capture high-resolution images and video, which can be streamed in real time to the ground control station (GCS).
Coordination hub for daughter drones: The mother UAV can serve as a relay point to manage the daughter drones, coordinating their flight paths to cover specific sections of the fire.

2. Daughter Drones for Detailed Data Gathering

Simultaneous multi-point surveillance: The daughter drones can be deployed at lower altitudes to gather detailed video and telemetry data in different sections of the fire zone. With their high-quality cameras, they can provide focused views of active fire fronts, hot spots, or areas needing attention.
Real-time mapping and telemetry: Data from the daughter drones can be relayed through the mother UAV to the GCS for real-time fire behavior mapping. This allows ground teams to make quick decisions about containment and evacuation.

3. Real-Time Data Processing at the Ground Control Station

Mission planning and coordination: The GCS can receive telemetry and video streams from both the mother and daughter drones, allowing operators to adjust drone flight paths and focus on critical areas.
Fire progression analysis: The high-resolution video streams from the drones can help assess how the fire is spreading, identify hotspots, and provide insights into where resources should be deployed.
Integration with geographic information systems (GIS): The drones’ data can be overlaid onto maps to visualize fire expansion, terræn, and safe routes for ground personnel.

4. Benefits of the Drone Network for Wildfire Surveying

Wide Area Coverage: With both the mother and daughter drones working together, you can cover a vast area in a short time, tracking the fire’s spread and monitoring multiple zones.
Real-Time Intelligence: The system’s ability to provide live video and telemetry ensures that firefighters and emergency responders have up-to-the-minute information on the fire’s status.
Safety and Efficiency: By using drones, you can reduce the risk to human lives by minimizing the need for manned aircraft or ground personnel in dangerous zones.
Long-Distance Operation: The system’s range, with the mother UAV relaying data over large distances, allows the GCS to operate from a safe distance away from the fire while maintaining full control over the drones.

The detailed information about the communication links is shown in the following table:

		Fungere	Sender / Target	Direction	Type of Data	Bithastighed
	Communication between Mother UAV and Daughter UAV	Flight Control and Flight status	Autopilot	Up-link and Down-link	Tele command and Telemetry	≤ 200 Kbps
	Communication between Mother UAV and Daughter UAV	Video link	Daughter drone onboard micro camera	Down-link	Visualization 720P resolution or less.	around 5 Mbps each
Communication between Mother’s UAV and CGS		Flight Control and Flight status	Autopilot	Up-link	Tele command and Telemetry	Low profile ≤ 200Kbps
		Video link	Mother UAV onboard HD camera	Down-link	Visualization 1080P resolution	Around 16 Mbps
		MUX Video link	Daughter drone mini transceiver	Down-link	MUX of 6 Video Stream	Around 30 Mbps

Our request:

Since our idea is still in the design phase, our startup company currently lacks sufficient expertise in drone Datalink technology. After thoroughly reviewing your company’s expertise and proven track record in the field of drone Datalink solutions, we are highly impressed by your capabilities. Given the complexity of our project and the specific technical requirements, we would like to kindly request your assistance in proposing a practical solution based on your existing product offerings. We believe your extensive knowledge and technology can greatly enhance the success of our project, and we look forward to your expert guidance in developing a reliable and efficient Datalink system for our drone network.

Your insights and recommendations will be invaluable in helping us move forward with the project.

“Beyond Line of Sight” (BLOS) communication is critical for FANETs (Flying Ad-Hoc Networks) due to the decentralized nature of drone networks and their operational range. Expanding BLOS in FANETs involves techniques and technologies that enhance communication, kontrollere, and performance.

1. Communication Technologies

Satellite Communication (SATCOM): Using satellites for drone communication provides robust coverage over large areas, including remote and oceanic regions.
High-Frequency (HF) Radio: HF bands enable long-distance communication, especially useful in areas without cellular networks.
Mesh Networking: FANETs use mesh networks to relay data between drones, bypassing the need for direct line-of-sight to a base station.
LoRa WAN and LPWANs: Low-power wide-area networks are beneficial for energy-efficient long-range communication.

2. Relay Systems

Intermediate Drones: Drones can act as relay points for others, forming multi-hop networks.
Ground Relays: Deploying ground stations in remote locations extends the communication range.
Airborne Platforms: High-altitude platforms (F.eks., balloons, larger UAVs) serve as relays to enhance coverage.

3. Advanced Antenna Systems

Directional and Phased-Array Antennas: Improve range and reduce interference by focusing signals.
Mimo (Multiple-Input Multiple-Output): Enhances throughput and reliability in non-line-of-sight conditions.
Beamforming: Dynamically steers signals toward drones to maintain connectivity.

4. AI and Machine Learning

Routing Optimization: AI-driven algorithms select the best paths for communication dynamically.
Predictive Maintenance: Analyzes patterns to prevent link failures before they occur.
Dynamic Frequency Allocation: AI identifies the best frequency bands to minimize interference and maximize range.

5. Protocols and Standards

Dynamic Spectrum Sharing: Efficiently allocates spectrum among FANETs and other users.
Adaptive Protocols: Protocols like AODV (Ad-hoc On-Demand Distance Vector) can be tailored for FANETs to ensure optimal performance in BLOS scenarios.
5G and Beyond: Integration with 5G NR (New Radio) for ultra-reliable low-latency communication (URLLC).

6. Energieffektivitet

Energy-Aware Routing: Minimizes power consumption in relays.
Harvesting Energy: Utilizing solar-powered drones or energy beams to recharge UAVs.

7. Sikkerhed

End-to-End Encryption: Ensures data security across the network.
Intrusion Detection Systems (IDS): Monitors and identifies malicious activities.
Blockchain: Secure, decentralized communication management in FANETs.