Aerial drone fleet with data loading and recharging docking station

The contracting authorities tendered to buy: Aerial drone fleet with data loading and recharging docking station (unmanned aerial vehicle (UAV)) with the following mandatory minimum requirements: - with take-off weight less than 25 kg. Total weight not exceeding 25 kg, payload capacity more than 2 kg (payload must be interchangeable e.g., RGB, spectral cameras, lidar). Therefore, these kinds of instrumentations should be able to attach onto the drone. - the maximum weight of the offered docking station is 140 kg - Flight time with maximum payload should be at least 30 min - Minimum flight speed of the drone should be 3 m/s or less. Capability also to fly with up to 8 m/s or more. - Safety systems for landing (e.g. parachute) - System should be fully electric - Drone and its sensors should fit onto docking station - Operation wind conditions, up to 12 m/s wind speed - Size of the system: under 3 meters in diameter, transport less than size 2 m in diameter - A water proof (IP44 minimum, recommended IP55) drone and drone platform for outdoor use. - Minimum 4G connection with automatic data transfer to cloud service or similar. - Costs of the maintenance and maintenance program (done by user or company) should be specified. (user maintenance preferred) - Operating Temperature range at least -10 to 40C, - The drone should be equipped with a location positioning system (GNSS: GPS+GLONASS+BeiDou+Galileo). Options for RTK and VRS functions are required. - Battery swap and/or charge so that downtime maximum is 60 minutes. - radio control range up to 7 km from docking station - Applications: Remote control software. Cloud Platform support (EU based), can be own cloud or a support of 3rd Party Platforms through API or similar - Drone must be able to autonomously take off and land from the docking station. The docking station automatically opens and closes to fully enclose the drone. The docking station automatically charges the drone. This pocurement includes mandatory options