Hitachi-lg Data Storage, Inc.

Naoya Matsuura

Toshimasa Kamisada

Katsuhiko Izumi

Norimoto Ichikawa

The present invention provides an omnidirectional distance measuring device that covers a wide detection range and does not require adjustment of each of the detection areas of a plurality of distance measuring sensors. In the omnidirectional distance measuring device, a plurality of distance measuring sensors that measure a distance to a target are disposed radially around a central axis so as to be close to each other. The plurality of distance measuring sensors are integrally configured such that a detection center direction of each of the plurality of distance measuring sensors is inclined by a predetermined angle from a plane perpendicular to the central axis. As the distance measuring sensor, a TOF sensor that measures a distance based on a flight time of light or a stereo camera that measures a distance using parallax of a pair of cameras is used.

Omnidirectional distance measuring device

A distance measurement apparatusincludes a light emitting unitthat irradiates a subject with a light-source light from a light source, a light receiving unitthat receives a reflected light from the subject, a distance calculation unitthat calculates a distance to the subject based on a time difference from the irradiation of the light-source light to the reception of the reflected light; and an image processing unitthat generates a distance image of the subject based on the calculated distance. Further, the apparatus includes a first rotation mechanismthat adjusts an irradiation angle of the light emitting unit and a second rotation mechanismthat adjusts a light receiving angle of the light receiving unit, in which the angles of the light emitting unit and the light receiving unit may be adjusted independently of each other.

Distance measurement apparatus and angle adjustment method of the same

A three-dimensional distance measurement apparatus include: a plurality of light sourcesthat irradiate light onto the subject; a light emission control unitthat controls light emission from a plurality of light sources; a light-receiving unitthat detects reflection light from the subject; a distance-calculating unitthat calculates a distance to the subject on the basis of a transmission time of reflection light; and an image processing unitthat creates a distance image of the subject on the basis of calculated distance data. The plurality of irradiation areasonto which light from the light sources are irradiated are arranged to partially overlap only with the neighboring ones. The light emission control unitindividually turns on or off the light sourcesor individually adjusts the emitted light amounts.

Growing community of inventors

Tokyo, Japan

Naoya Matsuura