A hammering test system includes a hammering test device including a target, a flying unit, and a hammering test mechanism configured to conduct a hammering test on a test object, a surveying instrument including a scanner for acquiring point cloud data by scanning with scanning light, and configured to be capable of performing tracking and distance and angle measurements of the target, and an arithmetic processing unit including a point cloud data analyzing unit configured to calculate shape data by analyzing point cloud data acquired by the scanner, and a flight plan calculating unit configured to calculate a flight plan of the hammering test device based on the shape data calculated by the point cloud data analyzing unit, and the surveying instrument tracks the target of the hammering test device and makes distance and angle measurements when the hammering test mechanism conducts a hammering test.

Systems, devices, and methods for stopping the rotation of propellers used in unmanned aerial vehicles (UAV) such as drones are disclosed. The propellers are stopped in response to detecting when beams of light adjacent the propellers are blocked.

A compact directed energy system is disclosed that is configured to generate directed energy beams. The compact directed energy system includes a radio frequency system configured to provide a directed energy beam in a frequency range between 500 MHz to 20 Ghz.

An unmanned aerial vehicle (UAV) a fixed frame and a rotating arm pivotably coupled to the fixed frame at a central axis. The fixed frame includes peripheral propellers and corresponding motors for flying the UAV, and a central electronics enclosure for housing electronics used to control the UAV. The rotating arm is between the propellers and configured to rotate with respect to the fixed frame about the central axis. The rotating arm includes magnetic feet at a first end of the rotating arm and configured to perch and magnetically attach the UAV to a ferromagnetic surface, a docking station at the first end and configured to release and dock a releasable crawler, and a battery at a second end of the rotating arm opposite the first end and configured to supply power to the motors and the housed electronics, and to counterbalance the first end about the central axis.

Disclosed are a system and method for aiming and/or guiding an interceptor Unmanned Aerial Vehicle to eliminate target Unmanned Aerial Vehicle, by holding the interceptor UAV to the direction of the target or by the use of a portable computer such as a table combined with the computer onboard camera and internal sensor to aim and guide the interceptor UAV toward the aerial threat by the operator. The UAV has a propulsion subsystem, imaging subsystem, flight sensors, and a computer processor that determine an intercept course for the UAV to the target using the sensors and the disable the target.

Disclosed are a system and method for aiming and/or guiding an interceptor Unmanned Aerial Vehicle to eliminate target Unmanned Aerial Vehicle, by holding the interceptor UAV to the direction of the target or by the use of a portable computer such as a table combined with the computer onboard camera and internal sensor to aim and guide the interceptor UAV toward the aerial threat by the operator. The UAV has a propulsion subsystem, imaging subsystem, flight sensors, and a computer processor that determine an intercept course for the UAV to the target using the sensors and the disable the target.

Disclosed is a drone trailer system and associated methods. The system includes a control section, which maneuvers the drone, and a utility section, which may serve one or more functions. The utility section may be connected to an articulated joint, which may be connected to the control section. The articulated joint may be detachably or fixedly connected to the control section. The payload of the utility section may include an electronic sign, a printed sign, a solar panel, or a camera. A stabilization device may stabilize the utility section's movement relative to the utility section. Further, the stabilization device may allow a user to orient the utility section relative to the control section in two or more orientations. The articulated joint may allow the control section to pitch and roll, or, alternatively, pitch, roll, and yaw relative to the utility section.

An airborne delivery system employs unmanned aerial vehicles (UAVs) released from an airborne platform, such as a Joint Precision Airdrop System (JPAD), to more accurately deliver supplies. The airborne delivery system is configured to be mounted on a JPAD, or similar airborne platform. As with a conventional JPAD, the JPAD is then released from an airborne vehicle. After a certain amount of flight time, one or more UAVs are released mid-flight from the airborne delivery system.

Provided is a protection device for protecting a sensor mounted on an unmanned aerial vehicle. The protection device includes a housing and a nozzle provided in the housing and connected to a container, and protects the sensor by discharging a content of the container from the nozzle. The protection device may further include an information acquisition unit for acquiring information from an outside, and discharge the content from the nozzle based on the information acquired by the information acquisition unit. The protection device may further include an environment detection unit configured to detect a change in environment, and discharge the content from the nozzle based on the change detected by the environment detection unit. The protection device may further include a foreign object detection unit configured to detect a foreign object, and discharge the content from the nozzle in response to the foreign object detection unit detecting the foreign object.

An unmanned aerial vehicle including a housing, a first front arm, a first back arm, a second front arm, and a second back arm. The first front arm has an end at a first elevational plane when in a closed position. The first back arm has an end at a second elevational plane when in the closed position, the second elevational plane higher than the first elevational plane to provide an offset. The second front arm has an end at the first elevational plane when in the closed position. The second back arm has an end at the second elevational plane when in the closed position, the second elevational plane higher than the first elevational plane to provide the offset.