Control system, moving object, and control apparatus

    公开(公告)号:US10732643B2

    公开(公告)日:2020-08-04

    申请号:US15757980

    申请日:2016-04-07

    Applicant: Hitachi, Ltd.

    Abstract: A control system includes: a moving object; and a control apparatus. The moving object is configured to: determine a face direction based on whether or not a face image of the human exists; and control the movement apparatus so that the moving object moves in accordance with path information. The control apparatus is configured to: detect a position of the human and the moving object in the area; calculate, based on the position of the human and the moving object, and the face direction, the path information for allowing the moving object to arrive at any one of a position within a predetermined range from the human and in a field of view of the human and a position within the predetermined range from the human and outside the field of view of the human; and transmit the path information to the moving object.

    Mobile robot and sound source position estimation system

    公开(公告)号:US09989626B2

    公开(公告)日:2018-06-05

    申请号:US14783008

    申请日:2013-04-12

    Applicant: Hitachi, Ltd.

    CPC classification number: G01S5/18 G01S3/8083

    Abstract: The present invention pertains to a method for estimating a sound source position in a space with high accuracy using a microphone installed on a robot moving in the space. A mobile robot includes a self-position estimation unit configure to estimate the self-position of the mobile robot, a sound source information obtaining unit configured to obtain direction information of an observed sound source, and a sound source position estimation unit configured to estimate the position of the sound source based on the estimated self-position and the direction information of the sound source.

    Control apparatus, control system, and control method

    公开(公告)号:US10339381B2

    公开(公告)日:2019-07-02

    申请号:US15648568

    申请日:2017-07-13

    Applicant: HITACHI, LTD.

    Abstract: A control apparatus is configured to execute: acquisition processing of acquiring, from at least one data acquisition apparatus, as data on a second object, time series data on a series of pieces of information on the second object that has been collected since the at least one data acquisition apparatus detected the second object; determination processing of determining whether or not the first and the second object are identical to each other based on information on the first and the second object; and storage processing of storing, when the determination processing results that the first and the second object are/aren't identical to each other, the data on the second object and the data on the first object in association with/without each other, and when the determination processing results in a determination that the first object and the second object are not identical to each other.

    Dialog device, dialog method, and dialog computer program

    公开(公告)号:US11605377B2

    公开(公告)日:2023-03-14

    申请号:US16824634

    申请日:2020-03-19

    Applicant: HITACHI, LTD.

    Abstract: The dialog device according to the present invention includes a prediction unit 254 configured to predict an utterance length attribute of a user utterance in response to a the machine utterance, a selection unit 256 configured to use the utterance length attribute to select, as a feature model for usage in an end determination of the user utterance, at least one of an acoustic feature model or a lexical feature model, and an estimation unit 258 configured to estimate an end point in the user utterance using the selected model. By using this dialog device, it is possible to shorten the waiting time until a response is output to a user utterance by a machine, and to realize a more natural conversation between a user and a machine.

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