Abstract: The present application relates to a target task intention identifying method and device based on a unit distribution thermal grid. The method comprises: converting the task space into latitude and longitude grids according to the latitudes and longitudes; according to locations of flying targets and task radiuses, constructing an aerial unit distribution thermal grid in the task space; according to the thermal value of the grid and the associated flying targets, determining a task suspected formation in the task space; judging whether or not each task suspected formation is a target formation according to the principle of time and space consistency; and determining task intention of the target formation according to the platform type of the flying targets in the obtained target formation and the task type of the task target in the task area.

Abstract: An aerial vehicle comprises: an electric power supply device, a motive power device, and a protective device disposed in an aerial vehicle body. The electric power supply device is configured to supply electric power to the motive power device or the protective device. The protective device is configured to reduce an exerted force between the aerial vehicle and another object when the aerial vehicle collides with the another object.

Abstract: A variable polarization independent optical power splitter is disclosed. An input light beam “A” is split into two output light beams “M” and “N” where the optical power ratio of the two output light beams “M” and “N” is adjusted to a desired ratio by controlling a variable polarization rotator, e.g. a liquid crystal unit. The polarization components “P” and “S” of the input light beam “A” are separated in a first polarization separator, then processed through the variable polarization rotator, and a second polarization separator. The polarization independence of the power split is thus achieved through the stratagem of processing the “P” and “S” polarized components of the input light beam “A” separately, resulting in four light beams “H”, “I”, “L” and “K”, which are appropriately combined in the polarization combiner to yield the output light beams “M” and “N” having the desired optical power ratio “R”.

Abstract: An optical power splitter for variably splitting an arbitrarily polarized light beam into two or more light beams, is disclosed. An input light beam “A” is received and split it into two output light beams “M” and “N” where the optical power ratio of the two output light beams “M” and “N” is adjusted to a desired ratio by controlling a variable polarization rotator (liquid crystal unit). The polarization components “P” and “S” of the input light beam “A” are separated in a first polarization separator (birefringent displacer), then processed through the variable polarization rotator and a second polarization separator. Finally the processed optical components are recombined in a polarization combiner so as to constitute the desired output light beams “M” and “N” having the desired optical power ratio “R”.