公开(公告)号：US20210076983A1

公开(公告)日：2021-03-18

申请号：US17024513

申请日：2020-09-17

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Takashi YAMAYA ,  Kouichi NAKAGOME ,  Mitsuyasu NAKAJIMA ,  Yasushi MAENO

IPC: A61B5/11 ,  A61B5/00

Abstract: An acceleration acquirer of a controller of an in-bed and out-of-bed determination device acquires, in a time series, acceleration of a subject from a sensor that is an acceleration sensor attached by the subject, a body motion determiner determines, based on the acquired acceleration, whether there is a body motion of the subject at each time, an evaluator evaluates a distribution of the acceleration at a time at which it is determined that there is not a body motion, an estimator estimates a body axis of the subject based on the evaluated distribution of the acceleration, and an in-bed and out-of-bed determiner determines at least one of in bed and out of bed of the subject based on the estimated body axis of the subject that is estimated by the estimator.

公开(公告)号：US20190011929A1

公开(公告)日：2019-01-10

申请号：US16026168

申请日：2018-07-03

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Yasushi MAENO

IPC: G05D1/02 ,  G05D1/00

CPC classification number: G05D1/0274 ,  G05D1/0016 ,  G05D1/0022 ,  G05D1/0088 ,  G05D1/0219 ,  G05D1/0225 ,  G05D1/0242 ,  G05D1/0246 ,  G05D1/0248 ,  G05D2201/0215

Abstract: An autonomous mobile apparatus includes a driving unit, a memory including a map memory, and a processor. The processor is configured to estimate an apparatus location based on information from the driving unit and estimate the apparatus location based on information from other than the driving unit. The processor is configured to acquire a location of an object around the autonomous mobile apparatus, create an environment map based on the estimated apparatus location and the acquired object location, and store the environment map in the map memory. The processor is configured to use, at a time of tracking when the estimation of the apparatus location based on the information from other than the driving unit is enabled, the environment map that is in the map memory at a time of reference determined by a time of loss when the estimation of the apparatus location is not enabled.

公开(公告)号：US20170261985A1

公开(公告)日：2017-09-14

申请号：US15359689

申请日：2016-11-23

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Yasushi MAENO

IPC: G05D1/00 ,  G05D1/02

CPC classification number: G05D1/0088 ,  G05D1/0246 ,  G05D1/0253 ,  G05D1/0274 ,  G05D2201/0203 ,  G05D2201/0207 ,  G05D2201/0214

Abstract: The movement direction-and-speed determiner of an autonomous movement device determines the direction and speed for an autonomous movement based on information on the plurality of picked-up images by an image picker. A feature point obtainer obtains a feature point from the picked-up image by the image picker. A map memory stores the position of the obtained feature point by the feature point obtainer. A corresponding feature-point number obtainer obtains the number of correspondences between the obtained feature point by the feature point obtainer and the feature point having the position stored in the map memory. When the obtained number of corresponding feature points by the corresponding feature-point number obtainer is equal to or smaller than a threshold, in order to increase the number of corresponding feature points, a moving direction-and-speed changer changes the moving direction and speed to those determined by the movement direction-and-speed determiner.