公开(公告)号：US20210286326A1

公开(公告)日：2021-09-16

申请号：US17134369

申请日：2020-12-26

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jiewu Leng ,  Man Zhou ,  Guolei Ruan ,  Qiang Liu ,  Ding Zhang ,  Duxi Yan

IPC: G05B13/02 ,  G06K9/62 ,  G06F17/16

Abstract: The disclosure discloses an inhomogeneous sample equalization method and system for a product assembly process. The method includes the following steps of: A: calculating a similarity among different samples; B: constructing a fuzzy compatibility matrix S for representing the similarity among all the samples, and constructing a fuzzy compatibility space X with different granule layers through the fuzzy compatibility matrix S; C: based on a granular calculating mode, screening out a granule layer with a maximum comprehensive value of an information increment and the similarity among the samples from the fuzzy compatible space X to serve as an optimal granule layer; and D: carrying out equalization processing on the sample of the optimal granule layer.

公开(公告)号：US11086306B1

公开(公告)日：2021-08-10

申请号：US17155012

申请日：2021-01-21

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Qiang Liu ,  Duxi Yan ,  Xin Chen ,  Jiewu Leng ,  Ding Zhang

IPC: G05B19/418

Abstract: A generalization and encapsulation method based on a digital twin (DT) model of a workshop includes: classifying a device in a production line according to a basic operation and a functional characteristic of a process of the device; abstracting a commonality in terms of process action mode, process algorithm and action trigger mechanism; encapsulating according to a sequence characteristic of a process; comparing processes, and generalizing and encapsulating; encapsulating according to a time sequence, a space sequence and a logic characteristic of a specific process; storing a generalized and encapsulated process in a database; and calling the generalized and encapsulated process from the database to a device or a process. The generalization and encapsulation system includes an abstract process encapsulation module, a continuous process encapsulation module, a process action encapsulation module, a process algorithm encapsulation module, a database and a fast calling module.

公开(公告)号：US12174599B2

公开(公告)日：2024-12-24

申请号：US18430606

申请日：2024-02-01

Applicant: Guangdong University of Technology

Inventor： Ding Zhang ,  Jiafeng Yang ,  Qiang Liu ,  Duxi Yan ,  Rongli Zhao

IPC: G05B13/04

Abstract: An energy-saving strategy formulation method for a semi-automatic production line based on model predictive control is performed as follows. max-plus algebra model is constructed, based on which an optimization objective function with the WIP products as discrete elements and sleep start moment and sleep end moment of the automated device as control variables is established. A first unoptimized WIP product is substituted into the optimization objective function, and the optimization objective function is solved to obtain an optimal sequence, in which a first set of values is output as optimization result. Whether all WIP products have been optimized is determined, and if yes, an energy-saving strategy is generated and used to control the automated device, otherwise, the optimization result is treated as disturbance information to be incorporated into the modeling. An energy-saving strategy formulation system is also provided.

公开(公告)号：US11340562B2

公开(公告)日：2022-05-24

申请号：US17072722

申请日：2020-10-16

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Qiang Liu ,  Jiewu Leng ,  Duxi Yan ,  Ding Zhang ,  Hao Zhang

IPC: G06G7/48 ,  G05B13/02 ,  G06F30/20 ,  B25J9/16 ,  G05B19/418

Abstract: Disclosed are a self-adaptive configuration method and system for linkage response of a construction type, a motion type, a control type and an optimization type. The disclosure aims to provide the self-adaptive configuration method and system for linkage response of quick adjustment and design of a workshop production line. The self-adaptive configuration method comprises the following steps of step A: construction type configuration; step B: motion type design; step C: control type design; and step D: optimization type evolution, wherein the step D comprises first-level iterative optimization, second-level iterative optimization and third-level iterative optimization. A closed optimization cycle is formed by the first-level iterative optimization, the second-level iterative optimization and the third-level iterative optimization jointly, and the multi-level iterative optimization is performed on the production line linkage design framework, so that the workshop production line can be self-adaptively and quickly adjusted and designed.

公开(公告)号：US11429070B2

公开(公告)日：2022-08-30

申请号：US17134369

申请日：2020-12-26

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jiewu Leng ,  Man Zhou ,  Guolei Ruan ,  Qiang Liu ,  Ding Zhang ,  Duxi Yan

IPC: G06K9/00 ,  G05B13/02 ,  G06F17/16 ,  G06K9/62

Abstract: The disclosure discloses an inhomogeneous sample equalization method and system for a product assembly process. The method includes the following steps of: A: calculating a similarity among different samples; B: constructing a fuzzy compatibility matrix S for representing the similarity among all the samples, and constructing a fuzzy compatibility space X with different granule layers through the fuzzy compatibility matrix S; C: based on a granular calculating mode, screening out a granule layer with a maximum comprehensive value of an information increment and the similarity among the samples from the fuzzy compatible space X to serve as an optimal granule layer; and D: carrying out equalization processing on the sample of the optimal granule layer.

公开(公告)号：US10915096B2

公开(公告)日：2021-02-09

申请号：US16820638

申请日：2020-03-16

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Qiang Liu ,  Jiewu Leng ,  Ding Zhang ,  Xin Chen ,  Lijun Wei

IPC: G05B19/418

Abstract: The present invention relates to the technical field of industrial automation, and in particular to a method and system for quick customized-design of an intelligent workshop. The method comprises the following steps: step A: acquiring design requirement information of a production line, and performing modeling in a simulation system according to the design requirement information; step B: performing action planning of a physical stand-alone device, performing logistics and motion planning of articles being processed, and compiling motion and action control scripts; step C: establishing, by the digital twin technology, a communication channel among a PLC system of the workshop digitization model, a PLC system of a physical workshop device and a host computer; and, step D: outputting a three-dimensional digital twin model as a blueprint for follow-up design and development of the stand-alone device, a control system and an execution system.