Abstract: A sensor control device which controls: a first sensor which detects, based on a captured image, whether a person is present in a first detection range, and detects, for each of regions into which the first detection range is divided, whether a person is present in the region, based on a captured image; and a plurality of second sensors which detect, based on infrared radiation, whether a person is present in respective second detection ranges includes a determiner which matches, for each of the regions, an on or off state of a detection function of the first sensor in the region with an on or off state of a detection function of a second sensor whose second detection range overlaps the region, among the plurality of second sensors, by controlling the first sensor and the plurality of second sensors.

Abstract: A detection device includes: a first sensor which detects, based on a captured image, whether a person is present in a first detection range; a plurality of second sensors which are disposed around the first sensor, and detect, based on infrared radiation, whether a person is present in respective second detection ranges each of which overlaps at least a portion of the first detection range; and at least one hood which blocks part of infrared radiation directed to at least one of the plurality of second sensors, to reduce a non-overlapping portion of a combined detection range of the first detection range of the first sensor and the second detection ranges of the plurality of second sensors, the non-overlapping portion being a portion in which the first detection range and the second detection ranges do not overlap.

Abstract: A sensor control device includes: a determiner which has a first determination mode for determining whether a person is present, based on a result of detection by a first sensor and a result of detection by a second sensor, and a second determination mode for determining whether a person is present, based on a result of detection by the second sensor, wherein the determiner suspends determination as to whether a person is present in the first determination mode, if a brightness change value indicating a change in brightness in a first detection range during a certain time period is greater than a predetermined value in the first determination mode, and determines whether a person is present in the first determination mode, if the brightness change value in the first detection range is less than the predetermined value in the first determination mode.

Abstract: A sensor control device includes: a determiner which has a first determination mode for determining whether a person is present, based on a result of detection by a first sensor and a result of detection by a second sensor, and a second determination mode for determining whether a person is present, based on a result of detection by the second sensor, wherein the determiner suspends determination as to whether a person is present in the first determination mode, if a brightness change value indicating a change in brightness in a first detection range during a certain time period is greater than a predetermined value in the first determination mode, and determines whether a person is present in the first determination mode, if the brightness change value in the first detection range is less than the predetermined value in the first determination mode.

Abstract: A sensor control device which controls: a first sensor which detects, based on a captured image, whether a person is present in a first detection range, and detects, for each of regions into which the first detection range is divided, whether a person is present in the region, based on a captured image; and a plurality of second sensors which detect, based on infrared radiation, whether a person is present in respective second detection ranges includes a determiner which matches, for each of the regions, an on or off state of a detection function of the first sensor in the region with an on or off state of a detection function of a second sensor whose second detection range overlaps the region, among the plurality of second sensors, by controlling the first sensor and the plurality of second sensors.

Abstract: A detection device includes: a first sensor which detects, based on a captured image, whether a person is present in a first detection range; a plurality of second sensors which are disposed around the first sensor, and detect, based on infrared radiation, whether a person is present in respective second detection ranges each of which overlaps at least a portion of the first detection range; and at least one hood which blocks part of infrared radiation directed to at least one of the plurality of second sensors, to reduce a non-overlapping portion of a combined detection range of the first detection range of the first sensor and the second detection ranges of the plurality of second sensors, the non-overlapping portion being a portion in which the first detection range and the second detection ranges do not overlap.

Abstract: A catalyst filter comprising titania catalyst fiber and at least one layer of nonwoven fabric of polymer fiber, which can remove dust and nitrogen oxides from exhaust gas at the same time, has a high catalytic activity and maintains the high catalytic activity even after vibrating the filter to shake off calcium hydroxide and dust.