Abstract: A server apparatus (10) includes a location information acquisition unit (110), a determination unit (120), and a flight vehicle control unit (130). The location information acquisition unit (110) acquires first location information indicating a location specified as a reception place for an item to be delivered by a flight vehicle (20), and second location information indicating a current location of a receiving person to receive the item. The determination unit (120) determines whether the location indicated by the first location information and the location indicated by the second location information when the flight vehicle (20) is flying satisfy a predetermined criterion. The flight vehicle control unit (130) transmits a command to the flight vehicle, and causes the flight vehicle (20) to execute flight control for performing authentication of the receiving person, when it is determined that the predetermined criterion is satisfied.

Abstract: A control apparatus includes a decision unit, a destination point determination unit, and an aircraft control unit. The decision unit decides, when an aircraft flies by using a battery unit as a power source, whether a remaining quantity of the battery unit is equal to or less than a reference value. The destination point determination unit estimates, when it is decided that the remaining quantity of the battery unit is equal to or less than the reference value, a location where a light quantity is equal to or more than a reference by using information from various types of sensors mounted on the aircraft. Then, the destination point determination unit determines, as a destination point of the aircraft, the estimated location. The aircraft control unit controls a mechanism of the aircraft so as to move the aircraft to the destination point determined by the destination point determination unit.

Abstract: An oiling device includes a passage system that circulates and feeds oil to an oiling object. A control unit includes a storage unit that has stored therein a first abnormality pressure set value that differs according to oiling temperature; the first abnormality pressure set value is set to a lower pressure as the oiling temperature is higher. The control unit executes an abnormal stop of the oiling object when an oiling pressure detected by an oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to an oiling temperature detected by an oiling temperature detecting unit.

Abstract: In an image forming apparatus for forming an image by electrophotography, a charging device is comprised of a needle electrode in which a plurality of saw teeth are arrayed in one direction; a cleaning rubber roller that cleans the needle electrode; a cleaning member supporter; a moving portion that moves the cleaning member supporter; and a control portion that controls the charging device, and the control portion includes a function to increase a saw-tooth current value by increasing print cumulative count; and a function to decrease the saw-tooth current value at the time of performing cleaning.