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公开(公告)号：US10432117B1
公开(公告)日：2019-10-01
申请号：US16015699
申请日：2018-06-22
IPC分类号： H02P7/025 , H02K41/035 , H02K11/21 , B65G23/00 , B65G51/03 , B65G43/00 , H02K11/35 , H04L29/08
摘要： An improved system and method for monitoring operation of movers in an independent cart system reduces the required communication bandwidth for monitoring operation of movers in a system where control is distributed among multiple controllers spaced along the track. As the mover is travelling along the track segment, each distributed controller monitors at least one operating characteristic of the mover. As a mover travels along the track, each distributed controller transmits the operating characteristic to a successive distributed controller, such the monitored operating characteristic is transmitted along the track as the mover travels along the track. At a reduced rate or upon request from a central controller, each distributed controller may transmit the status of a mover present on the corresponding track segment controlled by that distributed controller to the central controller.
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2.发明申请公开(公告)号：US20230068768A1
公开(公告)日：2023-03-02
申请号：US17411791
申请日：2021-08-25
IPC分类号： G05D1/02
摘要： Synchronization of multiple vehicles in an independent cart system to reduce spacing and increase throughput designates one of the movers as a leader and at least one additional mover as a follower, defining a chain of vehicles. A motion command for the chain is provided to a controller for the leader, and the controller generates a motion profile. The controller passes this motion profile to a controller for each of the follower movers. If the follower is unable to maintain the motion profile for the leader, the controller for the follower generates a message to the controller for the leader indicating a modification to the motion profile is required. The controller for the leader modifies the motion profile and forwards the modified motion profile to controllers for each follower. If all movers are following the modified profile, the controller for the leader may return to the original motion profile.
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公开(公告)号：US20220063924A1
公开(公告)日：2022-03-03
申请号：US17007167
申请日：2020-08-31
发明人： Yuhong Huang , Sean Lu , Tracy M. Clark
摘要： A system and method for monitoring disturbance forces experienced by a mover in an independent cart system monitors current generated by a controller and a feedback signal corresponding to operation of the mover in response to the current generated by the controller. The controller stores a value of the current reference and of the feedback signal, sampled in tandem, and determines a disturbance force experienced by the mover as it travels along the track as a function of the stored values of the current reference and of the feedback signal. The controller may store the measured disturbance force experienced by the mover as a function of the location of the mover along the track. For each subsequent time the mover travels along the same length of track, the controller may add a compensation value to the current reference to reduce the disturbance force experienced by the mover.
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公开(公告)号：US20210261351A1
公开(公告)日：2021-08-26
申请号：US16802095
申请日：2020-02-26
发明人： Yuhong Huang , Brian M. Perreault
摘要： An independent mover transport system and related method. The system comprises a mover having an axis, and a track. The track includes first and second track segments, and a controller operative to drive a first coil of the first track segment to control movement of the mover along the first track segment towards the second track segment. The controller is further operative to define a first zone for the first track segment, define a second zone for the first track segment, drive the first coil to control movement of the mover with the first set of controller gain values when the location of the axis is in the first zone, and drive the first coil to control movement of the mover with second set of controller gain values when the location of the axis is in the second zone.
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公开(公告)号：US20200017308A1
公开(公告)日：2020-01-16
申请号：US16034988
申请日：2018-07-13
摘要： A controller for an independent cart system simplifies programming and automatically adapts operation each mover travelling along a track. The controller includes a configuration table defining segments of the track, which includes a maximum velocity and/or a maximum acceleration for each mover within the segment. A motion command for a mover commands motion across multiple segments between the starting point and the ending point. As the mover travels, the controller receives a position feedback signal corresponding to the present location of the mover. The controller obtains the maximum velocity and/or maximum acceleration for the mover corresponding to the segment in which it is located. The controller automatically adjusts the speed and/or acceleration of the mover along the segment in which it is presently located. As the mover transitions between segments, the controller automatically adjusts the speed and/or acceleration according to the new segment in which the mover is located.
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公开(公告)号：US11599101B2
公开(公告)日：2023-03-07
申请号：US16802095
申请日：2020-02-26
发明人： Yuhong Huang , Brian M. Perreault
IPC分类号： B65G54/02 , G05B19/418 , B65G25/06 , B65G43/00
摘要： An independent mover transport system and related method. The system comprises a mover having an axis, and a track. The track includes first and second track segments, and a controller operative to drive a first coil of the first track segment to control movement of the mover along the first track segment towards the second track segment. The controller is further operative to define a first zone for the first track segment, define a second zone for the first track segment, drive the first coil to control movement of the mover with the first set of controller gain values when the location of the axis is in the first zone, and drive the first coil to control movement of the mover with second set of controller gain values when the location of the axis is in the second zone.
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7.发明申请公开(公告)号：US20220411196A1
公开(公告)日：2022-12-29
申请号：US17355714
申请日：2021-06-23
发明人： Jadav Das , Robert H. Schmidt , Yuhong Huang
摘要： A contactless monitoring system detects operating performance of movers in an independent cart system. A contactless sensor is provided on an actuator to automatically track a mover as it travels along the track. The sensor includes a transmitter configured to transmit a signal and a receiver configured to receive the signal after it is reflected off the mover. The actuator may be configured to mover the sensor in a single axis or in multiple axes of motion. As a mover travels along the track, the sensor transmits a signal towards the mover and detects the signal after it has been reflected off the mover. A controller may synchronize motion of the actuator with motion of the mover, such that the sensor may continually transmit the signal off the mover for at least a portion of the travel by the mover along the track.
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公开(公告)号：US11418398B1
公开(公告)日：2022-08-16
申请号：US17223806
申请日：2021-04-06
发明人： Cassiopia H. Sullivan , Michael Chemello , Jesse R. Mendenhall , Brian Perreault , Tracy Clark , Neil Bentley , Yuhong Huang , Sergio L. Canales , Jesus Chung
IPC分类号： H04L41/08 , H04L41/12 , G05B19/418 , H04L61/5007 , H04L101/622
摘要： A method may include receiving topology information associated with a linear motor system that includes multiple track modules. Each track module may include one or more motors. The topology information may include one or more media access control (MAC) addresses associated with the motors. The method may also include associating one or more IP addresses with the MAC addresses associated with the motors, generating a configuration file associated with the linear motor system based on the topology information and the IP addresses, and transmitting one or more commands to the motors to control or adjust one or more operations of the motors based on the configuration file.
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9.发明申请公开(公告)号：US20210131839A1
公开(公告)日：2021-05-06
申请号：US17151387
申请日：2021-01-18
发明人： Yuhong Huang , Brian M. Perreault , Eric J. Wildi
摘要： A system automatically calibrates gains and/or offsets for each position feedback signal in order to reduce variations between position feedback signals for each sensor in a linear drive system. As a mover travels along a track segment, the segment controller records the position feedback signal output from each position sensor corresponding to a magnet on the mover passing the position sensor. The segment controller periodically monitors the position feedback values generated by one mover as it travels along the track segment and automatically updates the sensor gains as a function of a ratio of a target peak value to a measured peak value of the position feedback signal. The segment controller also records the position feedback signal from each sensor when no mover is traveling past the sensor. The segment controller periodically monitors the position feedback values received when no mover is present and automatically updates sensor offset values.
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10.发明授权公开(公告)号：US10914620B2
公开(公告)日：2021-02-09
申请号：US16201464
申请日：2018-11-27
发明人： Yuhong Huang , Brian M. Perreault , Eric J. Wildi
摘要： A system to automatically calibrate gains and/or offsets for each position feedback signal in order to reduce variations between position feedback signals for each sensor in a linear drive system is disclosed. As a mover travels along a track segment, the segment controller records the position feedback signal output from each position sensor corresponding to a magnet on the mover passing the position sensor. The segment controller determines peak values for each position feedback signal and compares the peak values against a target peak value. The segment controller then adjusts a gain value for each sensor by a ratio of the target peak value to a measured peak value. The segment controller periodically monitors the position feedback values generated by one mover as it travels along the track segment and automatically updates the sensor gains as previously described.
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