COMMUNICATION CONTROL APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND NON-TRANSITORY COMPUTERREADABLE MEDIUM

    公开(公告)号:US20220101725A1

    公开(公告)日:2022-03-31

    申请号:US17426746

    申请日:2020-01-16

    Abstract: A communication control apparatus (10) according to the present disclosure includes a communication unit (11) communicating information to and from a moving body, a violation time predicting unit (12) predicting a violation time at which the moving body violates a constraint condition relating to a relative relationship between the moving body and another object or a constraint condition relating to a relative relationship between the moving body and a path on which the moving body should run by using positional information of the moving body, a deadline calculating unit (13) calculating an execution deadline of an avoidance operation for avoiding a violation of the constraint condition by using the violation time, and a communication control unit (14) increasing a priority level of a communication with the moving body as a time difference between a current time and the execution deadline decreases.

    MOTION CONTROL APPARATUS, MOTION CONTROL METHOD, NONTRANSITORY COMPUTER READABLE MEDIUM, AND MOTION CONTROL SYSTEM

    公开(公告)号:US20210318688A1

    公开(公告)日:2021-10-14

    申请号:US17272776

    申请日:2019-05-28

    Abstract: A motion control apparatus for controlling a control object to follow a target trajectory includes a position acquisition unit that acquires a present position of the control object, and a target trajectory generation unit that generates the target trajectory from the present position to a final position where the control object reaches. The apparatus includes a moving velocity determination unit that determines a moving velocity at which the control object moves in each position on the target trajectory, and a control target position calculation unit that sets a control target position in a traveling direction on a tangent vector of the target trajectory at the present position in order to perform feedback control so that the control object follows the target trajectory at the moving velocity. A control input calculation unit calculates a control input to the control object by the feedback control using the control target position as a target value.

    REMOTE OPERATION APPARATUS, REMOTE OPERATION METHOD, NON-TRANSITORY COMPUTER READABLE MEDIUM, AND REMOTE OPERATION SYSTEM

    公开(公告)号:US20210247759A1

    公开(公告)日:2021-08-12

    申请号:US17054822

    申请日:2019-03-08

    Abstract: A remote operation apparatus capable of remotely operating a work machine efficiently and with high accuracy is provided. A remote operation apparatus (100) is connected to a work machine (200) via a communication network N, and includes an operation input unit (101) that inputs an operation signal to the remote operation apparatus (100), the operation signal in response to an operation performed by an operator, an operation calculation unit (108) that acquires a magnitude of an operation from the operation signal, an operation change amount calculation unit (109) that acquires an operation change amount from the operation signal, a communication delay time measurement unit (110) that measures a communication delay time, and a speed calculation unit (111) that calculates an operation speed of the work machine (200) based on the magnitude of the operation, the operation change amount, and the communication delay time.

    REMOTE CONTROL APPARATUS, SYSTEM, METHOD, AND PROGRAM

    公开(公告)号:US20210181751A1

    公开(公告)日:2021-06-17

    申请号:US16761346

    申请日:2018-11-07

    Abstract: A remote control apparatus performs: calculating a path and a moving speed to reach a desired destination from a current position of the control target apparatus; measuring a communication delay time between the remote control apparatus and the control target apparatus; estimating an overshoot region based on the communication delay time, a stored size of the control target apparatus, and the moving speed; predicting whether the control target apparatus will contact with a peripheral object(s), based on the path, the overshoot region, and stored peripheral object information of the control target apparatus; calculating the moving speed information to be given to the control target apparatus so that a moving direction of the control target apparatus changes by a predetermined value or more when predicted that the control target apparatus will contact with a peripheral object(s); and transmitting a control signal including the moving speed information to the control target apparatus.

    COMMUNICATION ANALYSIS DEVICE, COMMUNICATION ANALYSIS METHOD, AND PROGRAM RECORDING MEDIUM

    公开(公告)号:US20190089795A1

    公开(公告)日:2019-03-21

    申请号:US16078216

    申请日:2017-03-08

    Inventor: Hiroshi YOSHIDA

    Abstract: A communication analysis device updates statistical information on a content access based on the communication session log of a user. The content access is an aggregation of a plurality of communication sessions needed for browsing one website. The communication analysis device acquires session information pertaining to one communication session, and determines whether a lapsed time from the start time or end time of a base communication session to the start time or end time of the one communication session is equal to or less than a threshold value. When the lapsed time is equal to or less than the threshold value, the communication analysis device determines that the one communication session is included in the same content access as the base communication session, and updates the statistical information of the content access. The communication analysis device stochastically sets the threshold value based on a prescribed probability distribution.

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