Patents by Inventor Jihu Wang

Jihu Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11103996
    Abstract: A robot joint space point-to-point movement trajectory planning method. Joint space trajectory planning is performed according to the displacement of a robot from a start point to a target point during PTP movement and a limitation condition of a preset movement parameter physical quantity of each axis in a robot control system. An n-dimensional space is constructed by taking each axis of the robot as a vector, wherein n?2, and the movement parameter physical quantity of each axis of the robot is verified according to a vector relationship between the n axes of the robot, so that a trajectory planning curve of each axis of the robot satisfies the limitation condition of the preset movement parameter physical quantity. The method has a small amount of calculations and strong real-time performance, the movement curves are mild, the control time is optimal, and the algorithm execution effect is good.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: August 31, 2021
    Assignee: NANJING ESTUN ROBOTICS CO., LTD
    Inventors: Riyue Feng, Jihu Wang, Zhengxian Xia, Tingting Pan, Bo Wu, Shuyi Jing
  • Publication number: 20190160674
    Abstract: A robot joint space point-to-point movement trajectory planning method. Joint space trajectory planning is performed according to the displacement of a robot from a start point to a target point during PTP movement and a limitation condition of a preset movement parameter physical quantity of each axis in a robot control system. An n-dimensional space is constructed by taking each axis of the robot as a vector, wherein n ?2, and the movement parameter physical quantity of each axis of the robot is verified according to a vector relationship between the n axes of the robot, so that a trajectory planning curve of each axis of the robot satisfies the limitation condition of the preset movement parameter physical quantity. The method has a small amount of calculations and strong real-time performance, the movement curves are mild, the control time is optimal, and the algorithm execution effect is good.
    Type: Application
    Filed: December 14, 2017
    Publication date: May 30, 2019
    Applicant: NANJING ESTUN ROBOTICS CO., LTD
    Inventors: Riyue FENG, Jihu WANG, Zhengxian XIA, Tingting PAN, Bo WU, Shuyi JING
  • Patent number: 9114529
    Abstract: A dual system component-based industrial robot controller having a standard operating system, a real-time operating system, a route management module, a soft bus, a driver management module, a motion control module, a PLC module, an IO module, a teach pendent interface module and a protocol stack module. The controller employs a component-based structure and the components are operated respectively under a non real-time standard operating system and a real-time operating system, and supports distributed processing. The communications and function calls among the components are carried out by the route management module and the soft bus. The components in communication are managed through the route management module. The driver management module provides communications among other modules with a consistent interface which accords to the DS402 standard, and a servo driver that accords to this interface standard can be readily integrated into the controller.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: August 25, 2015
    Assignees: NANJING ESTUN ROBOTICS CO. LTD, NANJING ESTUN AUTOMATION CO., LTD
    Inventors: Bo Wu, Jiegao Wang, Jihu Wang, Jijun Yu
  • Publication number: 20140074294
    Abstract: A dual system component-based industrial robot controller having a standard operating system, a real-time operating system, a route management module, a soft bus, a driver management module, a motion control module, a PLC module, an IO module, a teach pendent interface module and a protocol stack module. The controller employs a component-based structure and the components are operated respectively under a non real-time standard operating system and a real-time operating system, and supports distributed processing. The communications and function calls among the components are carried out by the route management module and the soft bus. The components in communication are managed through the route management module. The driver management module provides communications among other modules with a consistent interface which accords to the DS402 standard, and a servo driver that accords to this interface standard can be readily integrated into the controller.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 13, 2014
    Applicants: NANJING ESTUN AUTOMATION CO., LTD., NANJING ESTUN ROBOTICS CO., LTD.
    Inventors: Bo Wu, Jiegao Wang, Jihu Wang, Jijun Yu