A suspended aerial vehicle system includes an aerial vehicle with a thruster assembly and a supporting line attached to the aerial vehicle that is capable of supporting at least some of the weight of the aerial vehicle. The supporting line may have an adjustable length which when varied, and in coordination with variations in a thrust characteristic of the aerial vehicle, may change the position of the aerial vehicle. Other aspects are also described and claimed.

An aero wind power generation device may include a drone unit including drone wings configured to make the aero wind power generation device move and hover and a sensor unit configured to detect information for controlling the aero wind power generation device; a buoyancy generation unit including a side cover configured to open or close, a balloon disposed inside the side cover and configured to receive gas therein or release the gas therefrom, and a wire configured to surround the balloon; and a power generation unit including a rotating unit with a plurality of blades, a blade control unit of adjusting a state of the blades, and a motor unit of converting kinetic energy transferred from the rotating unit into electrical energy.

An aero wind power generation device may include a drone unit including drone wings configured to make the aero wind power generation device move and hover and a sensor unit configured to detect information for controlling the aero wind power generation device; a buoyancy generation unit including a side cover configured to open or close, a balloon disposed inside the side cover and configured to receive gas therein or release the gas therefrom, and a wire configured to surround the balloon; and a power generation unit including a rotating unit with a plurality of blades, a blade control unit of adjusting a state of the blades, and a motor unit of converting kinetic energy transferred from the rotating unit into electrical energy.

A stabilizing system for a cable has a cable deployed and suspended from a helicopter, a cargo support attached at a deployed end of the cable, an end effector attached to the cable, the end effector comprising thrusters directed in a plurality of directions orthogonal to a vertical axis of the cable, first control circuitry in the helicopter, and second control circuitry in the end effector. Thrust of individual thrusters is controlled through the first and second control circuitry maintaining the axis of the cable vertical, damping swinging of the cable.

A solar-powered fire tower structure has an array of solar panels positioned to provide power to the tower, one or more cameras to receive power from the solar panels, and a communications link to provide communication from the fire tower. A fire-retardant projectile has a casing of having a standardized size, a payload of a fire-retardant material, and a firing mechanism to propel the projectile out of a barrel.

A solar-powered fire tower structure has an array of solar panels positioned to provide power to the tower, one or more cameras to receive power from the solar panels, and a communications link to provide communication from the fire tower. A fire-retardant projectile has a casing of having a standardized size, a payload of a fire-retardant material, and a firing mechanism to propel the projectile out of a barrel.

A supply system for connecting a first vehicle has a platform, a first vehicle, a bendable connection element with one end connected with the first vehicle and another end connected with the platform and at least one floating unit for lifting the bendable connection element at least partly over a minimum floating height. The at least one floating unit is attachable to the bendable connection element distant from the first vehicle.

A supply system for connecting a first vehicle has a platform, a first vehicle, a bendable connection element with one end connected with the first vehicle and another end connected with the platform and at least one floating unit for lifting the bendable connection element at least partly over a minimum floating height. The at least one floating unit is attachable to the bendable connection element distant from the first vehicle.

Device for disinfecting an interior space with a cart, which is configured to travel along a path through the interior space, and a germicidal light source, characterized by a drone, which has at least one electric drive for generating lift, wherein the germicidal light source is fastened to the drone and the drone is connected to the cart via an electrical line for supplying energy to the germicidal light source and the electric drive.

Device for disinfecting an interior space with a cart, which is configured to travel along a path through the interior space, and a germicidal light source, characterized by a drone, which has at least one electric drive for generating lift, wherein the germicidal light source is fastened to the drone and the drone is connected to the cart via an electrical line for supplying energy to the germicidal light source and the electric drive.