Abstract: A distance measurement device includes a light-emitting-unit that emits irradiation light toward an object; a light-receiving unit that receives reflected light from the object; a distance-calculation unit that calculates a distance to the object based on a transmission time of the reflected light received; a posture-adjustment mechanism that adjusts a posture of at least the light-receiving-unit; and a posture-controller that drives the posture-adjustment mechanism. The light-receiving unit is formed of a two-dimensional sensor in which a plurality of pixels are two-dimensionally arrayed, and the distance-calculation unit calculates two-dimensional distance data from received light data in each of the pixels of the two-dimensional sensor.

Abstract: A distance measurement device includes a light-emitting-unit that emits irradiation light toward an object; a light-receiving unit that receives reflected light from the object; a distance-calculation unit that calculates a distance to the object based on a transmission time of the reflected light received; a posture-adjustment mechanism that adjusts a posture of at least the light-receiving-unit; and a posture-controller that drives the posture-adjustment mechanism. The light-receiving unit is formed of a two-dimensional sensor in which a plurality of pixels are two-dimensionally arrayed, and the distance-calculation unit calculates two-dimensional distance data from received light data in each of the pixels of the two-dimensional sensor.

Abstract: In the life rhythm measurement system, a distance measuring device measures 3D information (whether a posture corresponds to a standing posture, a sitting posture, or a lying posture, a movement amount, and absence information) of a measurement target person using a TOF sensor. A management device aggregates the 3D information measured by the distance measuring device for each unit time, estimates a life rhythm (a ratio of each posture per unit period, a movement amount, an absence time, a bedtime, a wake time, and a home return time) of the measurement target person from a 3D data for each time, and accumulates the estimated life rhythm in a storage device. The management device provides information on the life rhythm of the measurement target person accumulated in the storage device to a measurement requester.