With Plural Control Systems (e.g., The Interaction Of Plural Processors To Control The Plural Joints Of A Single Robot): Patents (Class 318/568.2)
  • Patent number: 7337040
    Abstract: Based on a detected or estimated value of an actual posture of a predetermined part, such as a body 3, of a robot 1 and a deviation the actual posture from a posture of a desired gait, a posture rotational deviation's variation is determined as the temporal variation of the deviation, and the position of the robot 1 (for example, the position where the robot comes into contact with a floor) is estimated on the assumption that the robot 1 rotates about a rotation center by the rotational deviation's variation. In addition, in accordance with the difference between the estimated position and the estimated position of the robot 1 determined by an inertial navigation method using an accelerometer or the like, the estimated position of the robot 1 determined by the inertial navigation method is corrected, thereby improving the precision of the estimated position.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: February 26, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto
  • Patent number: 7328087
    Abstract: A bipedal robot of the present invention has a trunk consisting of an upper trunk and a lower trunk which are rotatable around a rotation axis relative to one another. The upper trunk has shoulders on the right and left sides. An arm is provided at each shoulder. A pair of right and left legs is attached to lower ends of the lower trunk. A storage battery is mounted to the back of the upper trunk, positioned within a shoulder width. The storage battery is positioned below the top of a head mounted on the upper trunk. When the robot walks a narrow passage or corridor having a width slightly larger than the width thereof, for example, this arrangement prevents the storage battery from interfering with the passage or the like.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: February 5, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuhisa Saito, Teruyuki Oka, Toratsugu Kuwahara, Atsushi Demachi, Toshiyuki Higashi, Kenichi Ogawa, Takuro Koyanagi, Susumu Miyazaki
  • Publication number: 20080021589
    Abstract: In a system for an exchange of information between a machine tool (1) and a transfer device (11) for feeding blank or pre-machined work pieces or tools to the machine tool (1) or removing machined products or tools from the machine tool (1), the machine tool (1) comprises a control unit (3) and an interface (4), whereby the control unit (3) monitors and controls machining states of the machine tool (1) and transmits information regarding the machining states of the machine tool (1) via the interface (4) to the transfer device (11) to activate the transfer device (11). The transfer device (11) receives the information via an interface (14) assigned to it, processes the information by means of a control unit (13) assigned to it and reacts in response to the information, whereby a printer interface is used as the interface (4) of the machine tool (1).
    Type: Application
    Filed: July 10, 2007
    Publication date: January 24, 2008
    Applicant: Erowa AG
    Inventor: Bruno Sandmeier
  • Patent number: 7319918
    Abstract: A gait generation device for setting a translation floor reaction force's horizontal component (component concerning a friction force) applied to a robot 1, a limitation-target quantity, such as a ZMP, and an allowable range, for determining at least a provisional instantaneous value of a desired floor reaction force and a provisional instantaneous value for a desired movement of the robot 1, that receives at least the provisional instantaneous value for the desired movement and determines a model floor reaction force instantaneous value with the aid of a dynamics model.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: January 15, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto, Takahide Yoshiike
  • Patent number: 7319919
    Abstract: A landing position/orientation of a foot (22) to be landed in a landing action of a robot (1) such as a biped mobile robot or the like is estimated, and a desired footstep path for the robot (1) is set up. Based on the estimated landing position/orientation and the desired footstep path, a future desired landing position/orientation is determined in order to cause actual footsteps of the robot (1) (a sequence of landing positions/orientations of the foot (22)) to approach desired footsteps. Using at least the determined desired landing position/orientation, a desired gait for the robot (1) is determined, and the robot (1) is controlled in operation depending on the desired gait. For determining the desired landing position/orientation, mechanism-dependent limitations of the robot (1) such as an interference between the legs thereof, etc., and limiting conditions of an allowable range in which a desired ZMP can exist are taken into consideration.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 15, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto
  • Patent number: 7319917
    Abstract: A gait generation device for generating a desired gait which includes floating periods in which all the legs 2, 2 of a legged mobile robot 1 float in the air and landing periods in which at least one leg 2 is in contact with a floor which appear alternately generates the desired gait in such a manner that, at least when shifting from the floating period to the landing period, the velocity of an end portion 22 of a landing leg with respect to the floor and the acceleration thereof with respect to the floor is substantially 0 at the instant of landing. After both the velocity of the end portion of the leg with respect to the floor and the acceleration thereof with respect to the floor are determined to be substantially 0, a movement of the body of the robot with the desired gait is determined in such a manner that the horizontal component of a moment produced about the desired ZMP by the resultant force of gravity and an inertial force applied to the robot 1 is substantially 0.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: January 15, 2008
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto, Takahide Yoshiike
  • Patent number: 7313463
    Abstract: Systems for controlling the motion of multiple articulated elements connected by one or more joints in an artificial appendage system. Four different embodiments includes a controller that reduces the dimension of joint state space by utilizing biomechanically inspired motion primitives; a quadratic proportional-derivative (PD) controller which employs a two-stage linearization method, applies constraints to variables for dynamic stability, and employs a corrective “sliding control” mechanism to account for errors in the linear model used; a non-prioritized balance control approach that employs enforced linear dynamics in which all control variables are truncated to linear terms in joint jerks; and a biomimetic motion and balance controller based on center of mass (CM) energetic and biomimetic zero moment conditions.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: December 25, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Hugh M. Herr, Andreas G. Hofmann, Marko B. Popovic
  • Patent number: 7308336
    Abstract: An allowable range of a frictional force component, such as a horizontal component of a translation floor reaction force, applied to a legged mobile robot 1 is set, and a provisional movement with a current time gait of the robot 1 is determined so as to satisfy a condition concerning the allowable range and a dynamical equilibrium condition that a moment produced about a point of application of a provisional desired floor reaction force substantially agrees with a provisional desired floor reaction force moment. The provisional movement is determined by adjusting movements in two movement modes which are different in ratio between the translation floor reaction force and the floor reaction force moment.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: December 11, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto, Takahide Yoshiike
  • Patent number: 7308335
    Abstract: When generating a gait for a legged mobile robot 1 which has floating periods in which all the legs 2 of the robot float in the air and landing periods in which any of the legs 2 is in contact with the floor appearing alternately, a desired ZMP is set at any point in time in the floating periods and the landing periods, and a desired gait is generated in such a manner that the horizontal component of the moment produced about the desired ZMP by the resultant force of gravity and an inertial force caused by a movement of the robot with the desired gait is 0. The desired ZMP is set to be substantially continuous for all the periods in the gait. Furthermore, as a dynamics model for determining the desired gait, an approximate model is used which is arranged so that the moment, about a certain point of application, of the resultant force of the inertial force and gravity calculated using the model depends on the position of the point of application.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: December 11, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Takashi Matsumoto, Takahide Yoshiike
  • Patent number: 7266424
    Abstract: A walking robot using simple ground reaction force sensors and a method of controlling the same. It is an aspect of the present invention to provide the walking robot and the method of controlling the same, which reduces development and manufacturing costs of the walking robot and allows non-specialists to easily participate in the development. The walking robot includes a plurality of legs. One or more sensors are mounted on soles of each of the legs to detect whether the soles of each of the legs are in contact with a ground during locomotion. The walking robot performs the locomotion according to a locomotion pattern composed of a plurality of locomotion cycles, and proceeds from a current locomotion cycle to a next locomotion cycle after determining whether the current locomotion cycle is stable using detection results of the sensors.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: September 4, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Kwun Lee, Yeon-Taek Oh
  • Publication number: 20070200515
    Abstract: To provide a motor controlling device that reduces heat generated by an armature and switching elements when an alternating motor is activated. A motor controlling device includes: an H bridge circuit 20 that has FET1 to FET4 that connect and disconnect a high potential end HV and a low potential end GND of a direct-current power supply to and from an armature Lu; and an energization control unit for controlling the amount of energization of the armature Lu by the PWM control that involves changing the ratio, in a predetermined control cycle, between an energization control period, in which the FET1 and the FET2 are turned on and the FET3 and the FET4 are turned off, or the FET3 and the FET4 are turned on and the FET1 and the FET2 are turned off, and a non-energization control period, in which the FET1 and the FET3 are turned on and the FET2 and the FET4 are turned off, or the FET2 and the FET4 are turned on and the FET1 and the FET3 are turned off.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 30, 2007
    Inventors: Takeshi Misumi, Shinichiro Kobashi
  • Patent number: 7254464
    Abstract: Methods for operating robotic devices (i.e., “robots”) that employ adaptive behavior relative to neighboring robots and external (e.g., environmental) conditions. Each robot is capable of receiving, processing, and acting on one or more multi-device primitive commands that describe a task the robot will perform in response to other robots and the external conditions. The commands facilitate a distributed command and control structure, relieving a central apparatus or operator from the need to monitor the progress of each robot. This virtually eliminates the corresponding constraint on the maximum number of robots that can be deployed to perform a task (e.g., data collection, mapping, searching). By increasing the number of robots, the efficiency in completing the task is also increased.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: August 7, 2007
    Assignee: iRobot Corporation
    Inventors: James McLurkin, Jennifer Smith
  • Patent number: 7248943
    Abstract: Provided is a method in which a communication state between a main control unit and each sub control unit can be judged to be normal or abnormal, in a condition where a noise may be generated from a drive system power line. This method includes a power supply step s4, a test communication step (see arrows (3) and (4)), and a judgment step s6. In the power supply step s4, power is supplied to first sub control units 2a from a drive system power source 6 while no power is supplied to actuators 7 from the power source 6. In the test communication step, communication of a test signal is performed between the main control unit 1 and each of the sub control units 2. In the judgment step s6, whether the communication state is normal or abnormal is judged based on the result of the communication of the test signal between the main control unit 1 and each of the sub control units 2.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: July 24, 2007
    Assignee: Honda Giken Kabushiki Kaisha
    Inventor: Masaki Aihara
  • Patent number: 7236852
    Abstract: A legged mobile robot itself is responsive to the result of error detection during robot operations to perform error avoiding processing autonomously. In detecting an error, requested commands are all blocked by the internal processing within the robot so that an input to an actuating system does not affect the robot. The type of the error that has occurred is also notified to the actuating system so that feedback to an inputting system 32 may be applied in a manner specific to the error type. When the error is eliminated, that effect is notified to the actuating system to enable re-initiation of the usual command input from the remote operating system.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: June 26, 2007
    Assignees: Sony Corporation
    Inventors: Tomohisa Moridaira, Jinichi Yamaguchi
  • Patent number: 7228201
    Abstract: A robot device (1) has a central processing process (CPU) having a plurality of objects and adapted for carrying out control processing on the basis inter-object communication carried out between the objects, the central processing process controlling accesses by the plurality of objects to a shared memory shared by the plurality of objects and thus carrying out inter-object communication. Specifically, the central processing process generates pointers P11, P12, P13, P21, P22 in accordance with accesses by the objects to predetermined areas M1, M2 on a shared memory M, then measures the pointers by the corresponding number-of-reference measuring objects RO1, RO2, and controls the accesses in accordance with the number of pointers measured, thereby carrying out inter-object communication. This enables easy realization of smooth inter-process communication.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: June 5, 2007
    Assignee: Sony Corporation
    Inventors: Kohtaro Sabe, Kenta Kawamoto
  • Patent number: 7209801
    Abstract: A method for programming an industrial robot having a tool. The method includes obtaining configuration data for the tool and for the robot path and information about the position and orientation of the object in relation to the robot, obtaining a sequence of waypoints, which defines the process in relation to the object, obtaining at least one distance for adjusting the position of a waypoint, deciding whether an obtained waypoint should be modified or not, based on the obtained information about the waypoints, generating a modified sequence of waypoints by modifying the waypoints in the obtained sequence of waypoints, based on the decision, the obtained distance and the obtained information about the waypoints and generating the actual robot path based on the modified sequence of waypoints and the obtained configuration data.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: April 24, 2007
    Assignee: ABB Research Ltd
    Inventors: Ole Arnt Anfindsen, Charlotte Skourup, Thomas Pettersen, John Pretlove
  • Patent number: 7194335
    Abstract: A manipulator operative in a master/slave operative mode, comprising: a master unit commanding an operation; a slave unit having a work unit; a detector detecting the orientation of the master unit and the orientation of the slave unit; and a control device controlling the slave unit in response to the command from the master unit, wherein the control device includes: a function of determining a non-mater/slave operative mode or a master/slave operative mode; a function of calculating a difference between the orientation of the master unit and the orientation of the slave unit; and a function of comparing the absolute value of the difference with a preset reference value; and depending upon the result of the comparison, determining a normal master/slave operative mode or a transitional master/slave operative mode, in the master/slave operative mode, the transitional master/slave operative mode is a transitional mode from the non-master/slave operative mode to the master/slave operative mode.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 20, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takamitsu Sunaoshi
  • Patent number: 7190144
    Abstract: An adjustment system is disclosed for adjusting a proportional, integral, derivative controller in a limited rotation motor system. The adjustment system includes a first transform unit, a second transform unit, a model identification unit, and a PID adjustment unit. The first transform unit is for receiving a first digital signal that is representative of a motor control signal, and is for providing a first frequency domain sequence that is representative of a frequency domain representation of the motor control signal. The second transform unit is for receiving a second digital signal that is representative of a position detection signal, and is for providing a second frequency domain sequence that is representative of a frequency domain representation of the position detection signal. The model identification unit is for identifying a representation of a ratio of the first and second frequency domain sequences.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: March 13, 2007
    Assignee: GSI Group Corporation
    Inventor: Yuhong Huang
  • Patent number: 7190141
    Abstract: A modular exoskeletal device adapted to fit the lower extremities of a patient during rehabilitation. The device has only two actuators during the standing stage of rehabilitation. Two additional actuators can be added, as modules, during the walking stage of rehabilitation. The actuators are affixed to the patient and provide controlled motion to at least one of the joints of the patient. A stationary control unit is separated from the patient. The control unit communicates with and directs the actuators, and has a hybrid control algorithm, such that the actuator forces are adjusted as the patient regains control of some joint motions, which is based upon the sliding-mode control theory. A back brace is affixed to the patient and helps to keep the torso of the patient in a stable, substantially vertical position.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: March 13, 2007
    Assignee: Villanova University
    Inventors: Hashem Ashrafiuon, Mehdi Nikkhah
  • Patent number: 7162331
    Abstract: A charging/discharging circuit electrically controls the charge of a battery using supplied current and discharge of it. A micro-controller drives a robot according to instructions from a personal computer, controls the charging/discharging circuit while monitoring the battery state, and during the charge, prohibits the operation of a travel mechanism.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: January 9, 2007
    Assignee: Fujitsu Limited
    Inventor: Katsushi Sakai
  • Patent number: 7161322
    Abstract: A robot that includes an arm coupled to a platform. The arm includes an actuator that moves a second arm linkage relative to a first arm linkage. In a first mode of operation the actuator moves the second linkage in a first degree of freedom. In a second mode of operation the actuator moves the second linkage in a second degree of freedom. The use of a single actuator to provide two degrees of freedom reduces the number parts and associated cost of the arm. The arm further includes a grasper that can grab an object such as a wheelchair. The robot can be used to push the wheelchair. Commands to operate the robot can be generated at a remote input station and transmitted through a broadband network.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: January 9, 2007
    Assignee: InTouch Technologies, Inc.
    Inventors: Yulun Wang, Keith Phillip Laby, Ranjan Mukherjee
  • Patent number: 7148645
    Abstract: According to a legged mobile robot of the present invention, a variable measuring portion 101 measures the changing amount of a secondary desired angle ?T2, namely, of the newest primary desired angle ?T1 that is received by a first sub-control unit 121 as a variable ?. When a determining portion 102 determines that an absolute value of the variable ? exceeds a threshold ?, a correcting portion 103 corrects a motor current I so as to inhibit the changing amount of the motor current I. Thereby, even when an abnormality is temporarily generated in the communication between a main control unit 110 and a first sub-control unit 121 via a first communication line and the absolute value of the variable ? exceeds a threshold ?, the current supply I to a motor 131 is inhibited from changing rapidly.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: December 12, 2006
    Assignee: Honda Môtor Co., Ltd.
    Inventors: Shinichiro Kobashi, Masaki Aihara
  • Patent number: 7145300
    Abstract: A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on a system clock signal to permit control parameters of the selected axis to be processed to control the selected motor drive axis. The single unit PWM control mechanism eliminates complex and costly multiple axis networks typically associated with independent servo motor controls for each axis in a multi-axis system. A single PWM unit implementation also permits the reduction of components for closed loop current control and closed loop velocity control in the multi-axis servo control system.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: December 5, 2006
    Assignee: International Rectifier Corporation
    Inventor: Toshio Takahashi
  • Patent number: 7133744
    Abstract: An input motion acquiring unit acquires a motion trajectory of an object from an image recognizing unit. A dynamic modelling processor models a plurality of robot motion patterns stored in a robot motion pattern storage unit in a dynamic system form, and stores the modelled robot motion patterns into a robot-motion-pattern-model storage unit. A motion converting unit linearly transforms the plurality of robot motion dynamic models stored in the robot-motion-pattern-model storage unit into prediction motion trajectories. A motion comparing unit compares the input motion trajectory acquired by the motion acquiring unit with the prediction motion trajectories transformed by the motion converting unit. A robot motion selecting unit selects a robot motion pattern having the highest similarity from the robot motion pattern storage unit.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: November 7, 2006
    Assignee: Sony Corporation
    Inventor: Masato Ito
  • Patent number: 7117067
    Abstract: Methods for operating robotic devices (i.e., “robots”) that employ adaptive behavior relative to neighboring robots and external (e.g., environmental) conditions. Each robot is capable of receiving, processing, and acting on one or more multi-device primitive commands that describe a task the robot will perform in response to other robots and the external conditions. The commands facilitate a distributed command and control structure, relieving a central apparatus or operator from the need to monitor the progress of each robot. This virtually eliminates the corresponding constraint on the maximum number of robots that can be deployed to perform a task (e.g., data collection, mapping, searching). By increasing the number of robots, the efficiency in completing the task is also increased.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: October 3, 2006
    Assignee: iRobot Corporation
    Inventors: James McLurkin, Jennifer Smith
  • Patent number: 7113849
    Abstract: The stability of attitude of a robot can be recovered by an ambulation control apparatus and an ambulation control method according to the invention if it is lost in the course of a gesture for which the upper limbs take a major role. The apparatus and the method obtain the pattern of movement of the entire body for walking by deriving the pattern of movement of the loins from an arbitrarily selected pattern of movement of the feet, the trajectory of the ZMP, the pattern of movement of the trunk and that of the upper limbs. Therefore, according to the invention, a robot can determine the gait of the lower limbs so as to realize a stable walk regardless if the robot is standing upright or walking. Particularly, if the robot is made to gesture, using the upper body half including the upper limbs and the trunk while standing upright, it can determine the gait of the lower limbs so as to make a stable walk in response to such a gait of the upper body half.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: September 26, 2006
    Assignees: Sony Corporation, Jinichi Yamaguchi
    Inventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
  • Patent number: 7095203
    Abstract: A numerical controller which, after once stopping a slave axis during superposing control, can easily resume the superposing control. In the superposing control, a motion amount for a master axis and a motion amount for the slave axis are added to a workpiece coordinate value of the master axis and a workpiece coordinate value of the slave axis, respectively, to update their present position data (I2, II2). These motion amounts are supplied also to servo processing (I3, II3) for the master axis and the slave axis, where an amount obtained by superposing a motion amount ?zIm for the master axis ZIm on a motion amount ?zIIs for the slave axis ZIIs is supplied to the servo processing for the slave axis ZIIs. When a slave axis motion stop command is issued, the motion of the slave axis is stopped and a motion amount ?zIm for the master axis ZIm is subtracted from the workpiece coordinate value of the slave axis ZIIs.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: August 22, 2006
    Assignee: Fanuc LTD
    Inventors: Takahiko Endo, Yasushi Takeuchi
  • Patent number: 7089083
    Abstract: A virtual electronic pet and a pet-type robot that changes emotional state and instinct state according to surrounding information and internal information. The electronic pet behaves according to the emotional state and the instinct state. Transmission/reception of the internal state of the electronic pet (pet characteristic information) is made possible among the virtual electronic pet, the pet-type robot, and a personal computer. Thus, the action of the electronic pet is implemented by each device in accordance with the internal state of the electronic pet affected by other equipment.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: August 8, 2006
    Assignee: Sony Corporation
    Inventors: Naohiro Yokoo, Yasuhiko Kato, Masakazu Hattori, Masahiro Fujita, Naoyasu Hosonuma
  • Patent number: 7076338
    Abstract: A predetermined action sequence is generated by using basic motion units which include time-sequential motion of each joint and compound motion units in which basic motion units are combined. Motion natterns of a robot including walking are classified into motion units, each motion unit servins as a unit of motion, and one or more motion units are combined to generate various complex motions. Dynamic motion units are defined on the basis of basic dynamic attitudes, and a desired action sequence can be generated by using the dynamic motion units. This is a basic control method necessary for a robot to autonomously perform a continuous motion, a series of continuous motions, or motions which are chanaed in real-time by commands.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: July 11, 2006
    Assignees: Sony Corporation
    Inventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
  • Patent number: 7054715
    Abstract: System and method for allowing execution of control over robot hardware other than specific robot hardware by using control software that does not have features to be applied to the robot hardware other than the specific hardware designed for control. Control software makes an inquiry about the presence of robot function requested by control software through the use of interface recording and robot function searching. If it has been found that the robot function is present, there is a requests that robot motion be performed. If it has been found that the robot function is not present, the request is skipped, or the request is made to similar robot function.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: May 30, 2006
    Assignee: NEC Corporation
    Inventor: Yosuke Takano
  • Patent number: 7047107
    Abstract: There are provided a parameter storage part for storing monitor point information, a locus generation part for generating motions of the support, each joint point, and the like based on the movement command, a control point speed control part for obtaining speed of the control point such as the support, each joint point, and the like, a monitor point speed control part for obtaining speed of the monitor point generated from motion speed of the control point, and a motion command part for selecting the maximum speed among the speed of the control point and the speed of the monitor point to compare the maximum speed with the command speed and changing and controlling the speed of the control point to the command speed when the maximum speed exceeds the command speed.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: May 16, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sachiyo Minoshima, Minoru Kimura, Hisako Kimura, Katsumi Kimura
  • Patent number: 7024277
    Abstract: A method and a sub-system, henceforth called method DKA, for the determination and control of the activities of an emotional system aS, belonging to the class of autonomous, motivated agents and robots, is described. The method DKA determines the current motivation of the system aS to carry out an activity. Said motivation is determined by stimulus patterns in situation models and the intensities of the satisfactions and the desires with regard to the needs of the system aS. Priorities for the activities of the aS are determined by motivations. DKA controls sub-activities which, at the request of the system aS, are carried out by other agents/robots. The method DKA can assess which objects, situations and activities are presently good and which are bad for the system aS. The applied internal representation of the world of the system aS can include very abstract situation models.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: April 4, 2006
    Inventor: Alfred Schurmann
  • Patent number: 7024250
    Abstract: A method for the synchronous control of several manipulators, such as several industrial robots, is characterized in that control units of specific manipulators exchange control information according to the data structures contained in a corresponding control program, through which control units to be synchronized and synchronization points in the control programs taking place there can be clearly identified, and in that on reaching and synchronization points the program sequence in the control units to be synchronized is continued according to the contents of the data structures in conjunction with the already exchanged control information or stopped until corresponding information arrives from other control units to be synchronized.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: April 4, 2006
    Assignee: KUKA Roboter GmbH
    Inventors: Stefan Graf, Andreas Hagenauer, Michael Chaffee, Kenneth Stoddard
  • Patent number: 7020542
    Abstract: An apparatus for measuring and fixing the three-dimensional location of medical instrument that can be easily placed at a desired location by a user. In addition, a medical apparatus for measuring the three-dimensional locations of an apparatus fixed at an end portion of a cancer and an external apparatus and fixing the apparatus at an end portion of the cancer, which can be easily placed at a desired location by a user and carries out the location-fixing and measuring at the same time. The apparatus is applicable for various medical fields such as the measurement of the location and orientation of an external apparatus, the measurement of relative locations of a medical instrument contacted to an end-portion of a cancer and the object body, and the fixation of the instrument at a desired location.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: March 28, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Mun Sang Kim, Sung Kee Park, Jong Suk Choi, Chang Hyun Cho, Dong Seok Ryu, Yo Ha Hwang, Min Joo Choi
  • Patent number: 6995536
    Abstract: The present invention discloses a robotic manipulator, comprising at least one joint, each joint having a drive axis and at least one microelectromechanical system (MEMS) inertial sensor aligned with at least one drive axis providing sensing of a relative position of the drive axis. The robotic manipulator can include an inertial measurement unit (IMU) coupled to the robotic manipulator for determining the end effector position and orientation. A controller can be used, receiving a signal from at least one MEMS inertial sensor and controlling at least one joint drive axis in response to the signal to change the relative position of the joint drive axis. Rate information from MEMS sensors can be integrated to determine the position of their respective drive axes.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: February 7, 2006
    Assignee: The Boeing Company
    Inventor: A. Dorian Challoner
  • Patent number: 6980889
    Abstract: An input motion acquiring unit acquires a motion trajectory of an object from an image recognizing unit. A dynamic modeling processor models a plurality of robot motion patterns stored in a robot motion pattern storage unit in a dynamic system form, and stores the modeled robot motion patterns into a robot-motion-pattern-model storage unit. A motion converting unit linearly transforms the plurality of robot motion dynamic models stored in the robot-motion-pattern-model storage unit into prediction motion trajectories. A motion comparing unit compares the input motion trajectory acquired by the motion acquiring unit with the prediction motion trajectories transformed by the motion converting unit. A robot motion selecting unit selects a robot motion pattern having the highest similarity from the robot motion pattern storage unit. The present invention is applicable to a robot apparatus.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: December 27, 2005
    Assignee: Sony Corporation
    Inventor: Masato Ito
  • Patent number: 6961640
    Abstract: A predetermined action sequence is generated by using basic motion units which include time-sequential motion of each joint and compound motion units in which basic motion units are combined. Motion patterns of a robot including walking are classified into motion units, each motion unit serving as a unit of motion, and one or more motion units are combined to generate various complex motions. Dynamic motion units are defined on the basis of basic dynamic attitudes, and a desired action sequence can be generated by using the dynamic motion units. This is a basic control method necessary for a robot to autonomously perform a continuous motion, a series of continuous motions, or motions which are changed in real-time by commands.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: November 1, 2005
    Assignees: Sony Corporation, Jinichi Yamaguchi
    Inventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
  • Patent number: 6943520
    Abstract: Disclosed is a biped walking mobile system which achieves stability without altering a preestablished gait, and a walk controller and control method therefor. The biped walking mobile apparatus includes a gait former for forming gait data and a walk controller for controlling actions of the drive means based on the gait data. The walk controller includes a ZMP compensator, including: a ZMP sensor, a ZMP converter for computing a ZMP target value based on the gait data from the gait former, and a ZMP compensating stage for comparing the actual measurement value of ZMP detected by the ZMP sensor with the ZMP target value from the ZMP converter to modify the targeted angular velocity and acceleration in the gait data and thereby to compensate or correct the ZMP target value. Thus, the targeted angular path of movement in the gait data remains unaltered when the ZMP target value is compensated.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: September 13, 2005
    Assignee: Japan Science and Technology Agency
    Inventors: Takayuki Furuta, Ken Tomiyama, Hiroaki Kitano
  • Patent number: 6934605
    Abstract: A palletizer system is described for transferring a object that are conveyed along a conveyor to a rack, the object having a surface, the palletizer system comprising a camera, a robot transfer subsystem and a control module. The camera is configured to generate images of the object as it is being conveyed along the conveyor. The robot transfer subsystem comprises a gripper module mounted on a robot, the robot being configured to move the gripper module, and the gripper module being configured to controllably grip the surface.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: August 23, 2005
    Assignee: I-Scan Robotics Ltd.
    Inventors: Dan Dothan, Erez Dothan
  • Patent number: 6922610
    Abstract: A robot is obtained having various functions that are demanded for planetary landing vehicles, extreme operations robots or the like, in particular to provide a leg structure for a robot that is capable of getting up itself when overturned, facilitating take-off and landing on uneven ground, and that has a walking function and that has a hand function capable of three-dimensional operation. A robot comprises a main robot body and at least three legs mounted on this main body for enabling three-dimensional movement of the main robot body such as a self-erecting action or walking action; each leg is constituted by a multi-joint arm having a plurality of said offset rotary joints linked together and has a ground-engaging member mounted at the leading end of the arm, so that each leg is capable of independently controlled three-dimensional movement and drive.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: July 26, 2005
    Assignee: National Aerospace Laboratory of Japan
    Inventors: Osamu Okamoto, Teruomi Nakaya, Seizo Suzuki, Isao Yamaguchi, Heihachiro Kamimura, Kotaro Matsumoto, Sachiko Wakabayashi, Shuichi Sasa
  • Patent number: 6922609
    Abstract: A floor shape estimation system for a legged mobile robot, in particular a biped walking robot, which estimates a foot-to-foot floor inclination difference based on at least a control error of the total floor reaction force's moment and corrects a feet compensating angle based on the estimated value. Further, the system estimates a foot floor inclination difference based on at least a control error of the foot floor reaction force about a desired foot floor reaction force central point and corrects a foot compensating angle based on the estimated value. Furthermore, it determines whether it is in a situation where the accuracy of estimation is liable to degrade based on at least a time of the gait of the robot and when it is in the situation, the system interrupts the estimation. With this, the system can accurately estimate the shape of floor with which the robot is in contact.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: July 26, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Tadaaki Hasegawa, Takashi Matsumoto
  • Patent number: 6920374
    Abstract: A floor shape estimation system for a legged mobile robot, in particular a biped walking robot, which estimates a floor shape, more specifically a foot-to-foot floor inclination difference based on at least a control error of the total floor reaction force's moment and based on the estimated value and corrects a feet compensating angle based on the estimated value. Further, the system estimates a floor shape, more specifically a foot floor inclination difference based on at least a control error of the foot floor reaction force about a desired foot floor reaction force central point and corrects a foot compensating angle based on the estimated value. With this, it can accurately estimate the shape of a floor with which the robot is in contact. Further, if the floor shape is different from what has been supposed, it can produce the floor reaction force as desired by absorbing the influence of difference.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: July 19, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Takenaka, Tadaaki Hasegawa, Takashi Matsumoto
  • Patent number: 6914402
    Abstract: In a method for operating machines (138) with a plurality of shafts (102, 110, 111), in which the shafts (102, 110, 111) are each driven, synchronized with one another, by individual drive mechanisms (103) belonging to them, in accordance with an electronic, chronological guide shaft function, which corresponds to an instantaneous position of a guide shaft L, and the motions of a plurality of derived shafts (102, 110, 111) are derived from the guide shaft L in accordance with conversion functions that correspond to respective predetermined mechanical conversions (106, 107, 108, 109) with respect to the guide shaft L, it is proposed, in order to improve the method in such a way that—particularly when there is a large number of shafts to be regulated—simple startup at comparatively little expense for equipment is permitted, that all the shafts (102) of at least one group (117) of shafts, which correspond to one another in terms of the conversion (106, 107, 108, 109), obey an electronic, chronological following
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: July 5, 2005
    Assignee: Rexroth Indramat GmbH
    Inventors: Thomas Gabler, Karin Steudel, Dieter Staub
  • Patent number: 6909938
    Abstract: A method of and apparatus for synchronous control of a leading element and a follower element in which synchronism is started smoothly and a mechanical shock at the start of synchronism is reduced. When the follower element is started to move to be synchronized with the leading element, motion of the follower element is started before the follower element reaches a start position of the synchronism, and brought into synchronism with the leading element at the start position of synchronism. A positional relationship between the leading element and the follower element in synchronism, and a start position for starting the synchronism of the follower element and the leading element is set. An acceleration control of the follower element is performed between a motion start position preceding the start position of the synchronism and the start position of the synchronism.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: June 21, 2005
    Assignee: Fanuc Ltd.
    Inventors: Tetsuo Hishikawa, Takashi Idei, Kentaro Fujibayashi
  • Patent number: 6897626
    Abstract: A synchronous controller capable of easily controlling a slave axis in synchronism with a master axis performing a composite motion of a plurality of axes. Motion commands for two axes X, Y constituting the master axis are subject to interpolation/distribution and acceleration/deceleration processing, to determine distribution motion amounts, and the determined amounts of motion of the two axes X, Y constituting the master axis for every interpolation period are combined to determine an amount of motion M of the master axis, from which is determined an amount of motion of the slave axis for every interpolation/distribution period. The determined amounts of motion of the X, Y and slave axes are output to respective servo control means, thus driving the respective axes.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: May 24, 2005
    Assignee: Fanuc LTD
    Inventors: Kentaro Fujibayashi, Tetsuo Hishikawa
  • Patent number: 6879880
    Abstract: Surgical robots and other telepresence systems have enhanced grip actuation for manipulating tissues and objects with small sizes. A master/slave system is used in which an error signal or gain is artificially altered when grip members are near a closed configuration.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: April 12, 2005
    Assignee: Intuitive Surgical, Inc.
    Inventors: William C. Nowlin, Gary S. Guthart, Robert G. Younge, Thomas G. Cooper, Craig Gerbi, Steven J. Blumenkranz, Dean F. Hoornaert
  • Patent number: 6853880
    Abstract: An autonomous action robot which can turn its line of sight to face a person who calls out, can recognize the face of a person, and can perform various actions in response to commands. First, a sound emitted from a person or other sound source is detected by a sound detector, and the direction of the sound source is specified based on the detected sound. Then, a robot head section is controlled, and the imaging direction of the robot head section is moved to face the specified direction of the sound source. Next, an image is captured in the direction of the sound source, and a target image of a specific shape is extracted from the captured image. Then, the imaging direction of the robot head section is controlled and moved to face in the direction of the extracted target image.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: February 8, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Sakagami, Nobuo Higaki, Naoaki Sumida, Yuichi Yoshida
  • Patent number: 6853879
    Abstract: A medical master/slave manipulator is excellent in operability and capable of reducing burden on the operator. The medical master/slave manipulator includes a master unit provided with an operation control portion, a slave unit provided with a working device, an interlocking mechanism interlocking the slave unit with the master unit, an orientation difference measuring mechanism for measuring the orientation difference between the orientation of the master unit and that of the slave unit, and a control mechanism for controlling the slave unit to adjust the orientation of the slave unit to that of the master unit so that the orientation difference is reduced to zero in a transient master/slave operation mode in which an operation mode changes from an unrestricted operation mode to a master/slave operation mode.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: February 8, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takamitsu Sunaoshi
  • Patent number: 6845276
    Abstract: A multiple axis modular controller and a method of operating the controller in a system comprising input devices receiving indications of system conditions and output devices performing tasks affecting the system conditions. The controller includes input connectors connectable to the input devices and output connectors connectable to the output devices. A processor executes a series of sequential commands of an application program. A command can be executed in response to completion of one sequential command of the series of sequential commands regardless of a next sequential command in the series of sequential commands or in response to a specified input received at one of the input connectors or in response to a specified output sent to one of the output connectors. The processor does not execute the command, minimizing processor delays.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: January 18, 2005
    Assignee: Electro Scientific Industries
    Inventor: Curt Bocchi
  • Patent number: 6841964
    Abstract: Then an end effecter is used to operate a heavy object, a large bending moment may act on arms of a manipulator to bend them. Consequently, an operating section cannot precisely control positions. Thus, according to the present invention, three arms 14 are attached to a base section 11, each of the arms 14 being composed of a first link section 15 having one end connected to a rotating shaft 12 on the base section 11 and a second link section 17 connected to the first link section 15 via another rotating shaft 16. These arms 14 support an operating section 19. The second link section 17 is connected to the rotating shaft 16 and to the operating section 19 using universal joints 18a and 18b. Direct acting driving means 13 is composed of a driving shaft 13a and a driving source that advances and retreats the driving shaft 13a. The driving shaft 13a is driven to advance and retreat to move the operating section 19 to a desired position.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: January 11, 2005
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Koichi Osuka, Yoichi Nakamura