Abstract: The present invention relates to an underwater drone which is an unmanned mobile which can move in the water, and more particularly to a communication system for the underwater drone which performs communication between the underwater drone and a land-based controller (or maneuvering device). The present invention also relates to an airlock apparatus for the drone which transfers the drone into or from facilities or containers, or equipment sealed (or closed) against surrounding environment. The communication system for an underwater drone includes an underwater drone (1) configured to move in the water, at least one transmitting and receiving antenna (2) provided in an area where the transmitting and receiving antenna (2) can communicate with the underwater drone (1) by wireless communication, and a controller or a maneuvering device (5) connected to the at least one transmitting and receiving antenna (2) by a wired cable (4) and configured to control the underwater drone (1).

Abstract: Provided are various devices, systems and methods for observing pumps and the like. Provided is an industrial endoscope including an imaging device, a flexible holding member configured to hold the imaging device, and one or a plurality of nozzles fixed to the holding member and which injects a fluid.

Abstract: The present invention relates to a fire fighting system for transporting a nozzle of a fire hose coupled to a drone to a high place. The fire fighting system includes a fire hose (10) having a fire hose (10) having a nozzle (11) for injecting a fire extinguishing liquid; a fire-extinguishing-liquid supply source (2) which is coupled to the fire hose (10), and supplies the fire extinguishing liquid to the fire hose (10); a top drone (1) coupled to the nozzle (11); a wired cable (4) coupled to the top drone (1); and a power supply unit (3) which supplies power or fuel for flying the top drone (1) through the wired cable (4).

Abstract: Provided are various devices, systems and methods for observing pumps and the like. Provided is an industrial endoscope including an imaging device, a flexible holding member configured to hold the imaging device, and one or a plurality of nozzles fixed to the holding member and which injects a fluid.

Abstract: The present invention relates to an underwater drone which is an unmanned mobile which can move in the water, and more particularly to a communication system for the underwater drone which performs communication between the underwater drone and a land-based controller (or maneuvering device). The present invention also relates to an airlock apparatus for the drone which transfers the drone into or from facilities or containers, or equipment sealed (or closed) against surrounding environment. The communication system for an underwater drone includes an underwater drone (1) configured to move in the water, at least one transmitting and receiving antenna (2) provided in an area where the transmitting and receiving antenna (2) can communicate with the underwater drone (1) by wireless communication, and a controller or a maneuvering device (5) connected to the at least one transmitting and receiving antenna (2) by a wired cable (4) and configured to control the underwater drone (1).

Abstract: The present invention relates to a drone which is an unmanned mobile which can move in the air or in the water or in both areas, and a wired drone group having a plurality of drones. The wired drone group includes a plurality of drones (1) coupled in series by a wired cable (2) having a function for performing power feeding to the respective drones and/or communication with the respective drones (1), and a controller (3) connected to the drone (1) at one end side of the drone group and configured to control movement of the drone group.

Abstract: In a fluid machine, there is provided each diffuser flow passage for making uniform a flow in a downstream of a diffuser. The fluid machine is provided, and it has the diffuser for converting kinetic energy of a fluid into pressure energy. The diffuser has first and second diffuser flow passages configured so that the fluid passes through them, and shapes of the first and second diffuser flow passages are different from each other.