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1.发明公开公开(公告)号：US20240044108A1
公开(公告)日：2024-02-08
申请号：US18022813
申请日：2021-07-15
申请人： NEC Corporation
发明人： Tatsuya YOSHIMOTO , Hiroshi YOSHIDA
CPC分类号： E02F9/2041 , E02F9/265 , E02F9/2004
摘要： A work control method according to the present invention includes: an initial motion input model generation step; and a feedback control step, in which the initial motion input model generation step includes: a first initial motion input value measurement step of measuring a first initial motion measurement value at which the movable part is caused to start to move in a first state of the movable part; a second initial motion input value measurement step of measuring a second initial motion measurement value at which the movable part is caused to start to move in a second state of the movable part; and a model generation step of generating an initial motion input model that complements between the first initial motion measurement value and the second initial motion measurement value and derives the initial motion input value with respect to a desired posture of the construction machine.
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公开(公告)号：US20220269245A1
公开(公告)日：2022-08-25
申请号：US17624925
申请日：2019-07-16
申请人： NEC Corporation
发明人： Hiroshi YOSHIDA
IPC分类号： G05B19/4155
摘要： In order to provide an estimation apparatus estimating a true value from observation data without determining a state equation for a target to be controlled, the estimation apparatus includes a prediction section and an update section. The prediction section executes linear prediction on time-series data, which includes observation values acquired from a sensor attached to the target to be controlled, to calculate an estimate value before update relating to a state of the target to be controlled. The update section updates the estimate value before update by using the observation value acquired from the sensor. The prediction section may calculate the estimate value before update by weighted linear prediction on the time-series data of the observation values.
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公开(公告)号：US20190281122A1
公开(公告)日：2019-09-12
申请号：US16348889
申请日：2017-11-13
申请人： NEC Corporation
发明人： Anan SAWABE , Hiroshi YOSHIDA , Kousuke NOGAMI
IPC分类号： H04L29/08 , G06F16/957 , G06F11/34
摘要： In order to provide a communication session log analysis device allowing integration of communication session logs that makes it p to provide web session time with which quality of user experience can be evaluated with high precision, a communication session log analysis device according to the present invention that updates information relating to a web session includes: a web session integration means for integrating, when time elapsed from a start time of a reference communication session to a start time of one communication session is equal to or less than a threshold value, the one communication session into the same web session as the reference communication session, a threshold value setting means for setting the threshold value, based on a predetermined probability distribution, and a filtering means for extracting the web session determined as valid by statistical testing based on statistical information relating to a configuration of the web site.
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公开(公告)号：US20240160810A1
公开(公告)日：2024-05-16
申请号：US18383127
申请日：2023-10-24
申请人： NEC Corporation
发明人： Hiroshi YOSHIDA
IPC分类号： G06F30/25
CPC分类号： G06F30/25
摘要： An information processing system 100 according to the present disclosure is an information processing system that forms a plurality of particle filters for estimating states of a plurality of systems. The information processing system includes a determination unit 121 configured to determine a risk of the state of each of the systems based on the state of each of the systems, and a calculation unit 122 configured to calculate the number of particles to be allocated to each of the systems based on the risk and also calculate the number of particles so as to allocate at least a preset minimum number of particles to all the systems.
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公开(公告)号：US20240052603A1
公开(公告)日：2024-02-15
申请号：US18021773
申请日：2021-07-16
申请人： NEC Corporation
发明人： Hiroshi YOSHIDA , Tatsuya YOSHIMOTO
摘要： In a related technique, a target point sequence is generated without considering the content of a work of a construction machine, which causes a problem that an actual trajectory of the construction machine is significantly deviated from the target point sequence depending on the content of the work of the construction machine. A work control method according to the present invention includes: a target point setting step (S1) of generating, based on work content information, a work target point sequence indicating a target trajectory on which target points a construction machine is to move to are plotted, and a construction machine control step (S2) of controlling the construction machine in accordance with the work target point sequence.
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6.发明申请公开(公告)号：US20220342422A1
公开(公告)日：2022-10-27
申请号：US17640972
申请日：2020-09-16
申请人： NEC Corporation
发明人： Shinya YASUDA , Taichi KUMAGAI , Hiroshi YOSHIDA
IPC分类号： G05D1/02
摘要： In order to appropriately determine whether or not a moving body can pass through a passage in a target range for generating a movement path, a passability determination apparatus 100 includes: an obstacle detection section 153 configured to detect a passage obstacle obstructing passage of a moving body 50, based on image information obtained by imaging a target range for generating a movement path for the moving body 50; a determination section 155 configured to determine passability for the moving body through a passage area included in the target range, based on detection of the passage obstacle; and a transmission processing section 157 configured to send passability information related to the passability for the moving body 50, to a movement path generation apparatus 200 generating the movement path.
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公开(公告)号：US20220098835A1
公开(公告)日：2022-03-31
申请号：US17426742
申请日：2020-01-29
申请人： NEC Corporation
发明人： Tatsuya YOSHIMOTO , Hiroshi YOSHIDA
摘要： A convergence determination unit determines whether a state of the bucket has converged to a current target state. A target state update unit is configured to update a target state of the bucket when the convergence determination unit determines that the state of the bucket has converged to the current target state. The convergence determination unit includes a first convergence determination unit and a second convergence determination unit. The first convergence determination unit determines whether a swing angle of each mechanism has converged to the corresponding target swing angle under a first convergence condition. The second convergence determination unit determines whether a swing angle of each mechanism has converged to the corresponding target swing angle under a second convergence condition, which is stricter than the first convergence condition.
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公开(公告)号：US20210382496A1
公开(公告)日：2021-12-09
申请号：US17287851
申请日：2019-10-30
申请人： NEC Corporation
发明人： Shinya YASUDA , Hiroshi YOSHIDA
摘要： A position detection apparatus comprises: a map information creation part that creates map information representing a position in a space including a floor surface on which at least one detection object may be disposed; a mask information creation part that creates mask information, by extracting a region of a predetermined height range within a height range from the floor surface when the detection object is disposed in the space from the map information; a specifying part that specifies partial optical image information, by removing a region corresponding to the mask information from the optical image information; and a detection part that specifies a positional relationship between the map information and the partial optical image information at a pixel level, and detects a position of the detection object in the map information based on the specified positional relationship.
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公开(公告)号：US20210258903A1
公开(公告)日：2021-08-19
申请号：US17251581
申请日：2019-04-09
申请人： NEC Corporation
发明人： Takayuki SUZUKI , Hiroshi YOSHIDA
摘要： An apparatus to be controlled (40) is remotely controlled by a remote-control apparatus (10) through a wirelessly-connected communication network (20). The apparatuses (40) includes a delay measurement unit (403) configured to measure a communication delay, a logarithmic conversion unit (406A) configured to logarithmically convert the communication delay, a smoothing unit (406B) configured to smooth the communication delay, a radio-wave index value measurement unit (404) configured to measure a radio-wave index value, a model learning unit (406C) configured to generate a learning model, a communication delay estimation unit (407) configured to calculate an estimated communication delay value by using the learning model and the radio-wave index value, and a speed determination unit (408A) configured to calculate a second operation amount to be input to a drive unit (408B), based on the estimated communication delay value and a first operation amount input from the remote control apparatus (10).
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公开(公告)号：US20190215254A1
公开(公告)日：2019-07-11
申请号：US16325779
申请日：2017-08-07
申请人： NEC Corporation
发明人： Hiroshi YOSHIDA
CPC分类号： H04L43/087 , G05B11/36 , G06N7/005
摘要： In order to improve a transient response and stability of remote control when a transmission delay varies, a remote control device receives a control result from a control target device, generates control data for performing a feedback control with dead time compensation, based on the control result and a delay setting value, determines the delay setting value, based on a history of a delay amount of transmitted/received data to/from the control target device, transmits the delay setting value, and transmits the control data and a generation time of the control data. And, a delay adjustment device receives control data from a remote control device and storing the control data, receives a delay setting value to be used for dead time compensation in the remote control device, and outputs the control data to a control target, based on the delay setting value and a generation time of the control data.
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