1. Key Specifications:

• Drone Type: Quadcopter UAV.
• Max Flight Time: Up to 90 minutes (depending on payload and environmental conditions).
• Max Range: Up to 15 km (communication/control range).
• Weight: Around 7-8 kg (without payload).
• Dimensions: 1020 x 1020 x 400 mm (with propellers deployed).
• Payload Capacity: Supports a range of payloads including RGB cameras, multispectral sensors, and LIDAR.
• Battery: High-capacity lithium-polymer batteries that provide long flight endurance.
• Wind Resistance: Up to 36 km/h (10 m/s or 22 mph).
• Operating Temperature: -20°C to 50°C (-4°F to 122°F).
• GNSS Technology: Integrated RTK/PPK (Real-Time Kinematic/Post-Processed Kinematic) for centimeter-level accuracy.

2. Payload and Sensor Options:

The BB4 drone is highly adaptable, allowing the integration of different types of sensors depending on the project requirements:

• RGB Cameras: High-resolution cameras, such as the Sony A7R or Phase One, for generating detailed Orth mosaics and 3D models.
• Multispectral Sensors: Suitable for agricultural applications (e.g., MicaSense RedEdge-MX), allowing plant health monitoring, vegetation analysis, and NDVI calculations.
• LIDAR: For precise terrain mapping and generating point clouds, LIDAR sensors can penetrate through vegetation and provide highly accurate 3D data.

3. Flight Performance:

• Flight Endurance: With its maximum flight time of up to 90 minutes, the BB4 is ideal for covering large areas in a single flight, making it particularly useful for large-scale mapping and surveying operations.
• Autonomous Flight Modes: The BB4 can conduct fully autonomous missions, including takeoff, flight path execution, and landing, through CHCNAV’s mission planning software, CoPilot.
• Terrain Following: The drone can follow terrain contours to maintain a consistent altitude during data collection, ensuring uniformity in data captured across different elevations.

4. RTK/PPK GNSS for High Precision:

• RTK (Real-Time Kinematic): The BB4 drone utilizes RTK technology to provide real-time corrections for GNSS data, ensuring centimeter-level accuracy during flight.
• PPK (Post-Processed Kinematic): In cases where real-time correction is not feasible, PPK is used for post-processing the flight data to achieve even higher precision.
• Accuracy: The BB4’s GNSS system ensures centimeter-level accuracy in mapping and surveying projects, reducing the need for extensive ground control points (GCPs).

5. Applications of the CHCNAV BB4 Drone:

• Land Surveying and Mapping: Ideal for generating Digital Elevation Models (DEMs), Digital Terrain Models (DTMs), and high-resolution Orth mosaics for land surveying tasks.
• Construction: The BB4 can assist in construction site mapping, progress tracking, and volume estimation, providing valuable 3D models and updates on project status.
• Mining: In mining operations, the BB4 can be used for high-accuracy stockpile volume calculations, terrain analysis, and tracking material quantities in an efficient and safe manner.
• Precision Agriculture: Equipped with multispectral sensors, the BB4 can provide insights into crop health, detect irrigation issues, and assess overall agricultural productivity.
• Environmental Monitoring: The BB4 is suitable for forestry management, wildlife habitat monitoring, coastal erosion studies, and environmental impact assessments.

6. Software and Data Processing:

CHCNAV drones, including the BB4, integrate seamlessly with industry-leading data processing software, ensuring that raw flight data can be easily converted into actionable insights.

• Mission Planning: CHCNAV’s CoPilot software allows users to design precise flight paths, define waypoints, and control flight parameters.
• Photogrammetry Software: The BB4 is compatible with popular photogrammetry software such as Pix4D, Agisoft Metashape, and DroneDeploy for processing aerial imagery into detailed maps, models, and ortho mosaics.
• LIDAR Processing: When using LIDAR sensors, the collected point cloud data can be processed using specialized software to generate high-resolution 3D models of terrain and infrastructure.

7. Durability and Environmental Resistance:

• Weather Resistance: The BB4 is designed to handle tough environmental conditions and can operate in light rain and dusty environments, with an IP rating that protects it from water and dust ingress.
• Wind Resistance: With the ability to withstand wind speeds of up to 36 km/h (10 m/s or 22 mph), the BB4 is a reliable option even in windy conditions.

8. Safety Features:

• Failsafe Systems: The BB4 comes with multiple failsafe features, including an automatic Return-to-Home (RTH) function in case of communication loss or low battery.
• Obstacle Avoidance: Advanced obstacle avoidance sensors help the drone navigate around objects and avoid collisions.
• Redundant GNSS Systems: Dual GNSS antennas ensure stable positioning even in challenging environments, reducing the risk of signal loss.

9. Battery System and Charging:

• Battery Life: The drone’s 90-minute flight time is powered by high-capacity lithium-polymer batteries, allowing it to cover large areas without frequent recharges.
• Swappable Batteries: For extended operations, the batteries are swappable, allowing quick turnarounds between missions.
• Intelligent Battery Management: The drone features an advanced battery management system to monitor power levels and optimize consumption during flight.