Patents by Inventor Jiguang LU

Jiguang LU 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).

  • Publication number: 20220003109
    Abstract: A push-pull force control method for a horizontal directional drilling machine and a horizontal directional drilling machine are provided. The control method includes: adjusting a working displacement of a motor to enable a maximum push-pull force Fmax corresponding to the working displacement to be greater than a set push-pull force Ft; calculating a working pressure difference ?P of the motor according to the set push-pull force Ft; calculating a working pressure required by the motor according to the working pressure difference ?P and a collected first oil return back pressure of the motor; and adjusting an oil feeding pressure of the motor to enable the oil feeding pressure of the motor to be equal to the working pressure required by the motor. The method accurately and fast controls the push-pull force of the horizontal directional drilling machine.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 6, 2022
    Applicant: XUZHOU XUGONG FOUNDATION CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Li ZHANG, Zhonghai ZHANG, Jiguang ZHANG, Weixiang LV, Yonghua ZHANG, Peng WANG, Jinlong LU, Ming LI, Changjian QIN
  • Patent number: 11079216
    Abstract: The disclosure relates to a chain intelligent pre-tensioning and chain length detection method and device thereof. The device includes a rack, a work platform, a pre-tensioning power device, a measuring power device, a length measuring device and a console. The console receives the information of the length measuring device to adjust and control the pre-tensioning power device. The pre-tensioning and chain length measurement adopts a combination structure of an independently operated screw loading system as well as two sets of unique straight guide rails and four pallets mounted on the guide rail. The pre-tensioning force loading adopts the servo system and works with decelerator and precision grinding screw for loading. The measuring force loading adopts stepper motor and works with precision grinding screw for loading. The pretension and measurement adopt two tensile force sensors, so that chain pre-tensioning force and the chain length measuring force can be controlled accurately.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: August 3, 2021
    Assignee: HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
    Inventors: Bin Ye, Jiguang Lu, Lili Wang, Hongjun Wang, Jiancong Zhang, Bin Sun, Bihua Xuan
  • Publication number: 20210203751
    Abstract: Embodiments of this application disclose methods, systems, and devices for electronic note identifier allocation and electronic note generation. In one aspect, an electronic note identifier allocation method is performed by a processing node of a distributed computer system. The processing node receives an electronic note identifier application request initiated by a service node. The processing node generates an electronic note identifier set in response to the electronic note identifier application request. The processing node also synchronizes the electronic note identifier in the electronic note identifier set. After the synchronizing, the processing node further the electronic note identifier in the electronic note identifier set to the service node.
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Inventors: Luohai ZHENG, Jiguang LU, Wangsheng ZHOU, Jianjun ZHANG, Junjie SHI, Hujia CHEN, Jun ZANG, Chuanbing DAI, Qing QIN, Yige CAI
  • Publication number: 20210136046
    Abstract: An embodiment of this application discloses a node control method performed by a forwarding platform in a distributed computer system. The method includes: establishing, by a forwarding platform, a secure link with a user terminal through a domain name of the forwarding platform; obtaining, by the forwarding platform through the secure link, a request packet transmitted by a user terminal, and the request packet comprising an address identifier of a target node in the distributed computer system and a request content of the user terminal for the target node; encrypting, by the forwarding platform, the request content to obtain a first encrypted packet; and transmitting, by the forwarding platform, the first encrypted packet to the target node according to the address identifier. Computing device and non-transitory computer-readable storage medium counterparts are also contemplated.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Inventors: Jiguang LU, Jianjun ZHANG, Shicheng FENG
  • Publication number: 20210041224
    Abstract: The disclosure relates to a chain intelligent pre-tensioning and chain length detection method and device thereof. The device includes a rack, a work platform, a pre-tensioning power device, a measuring power device, a length measuring device and a console. The console receives the information of the length measuring device to adjust and control the pre-tensioning power device. The pre-tensioning and chain length measurement adopts a combination structure of an independently operated screw loading system as well as two sets of unique straight guide rails and four pallets mounted on the guide rail. In the meantime, two sets of loading systems are adopted. The pre-tensioning force loading adopts the servo system and works with decelerator and precision grinding screw for loading. The measuring force loading adopts stepper motor and works with precision grinding screw for loading.
    Type: Application
    Filed: April 25, 2018
    Publication date: February 11, 2021
    Applicant: HANGZHOU DONGHUA CHAIN GROUP CO.,LTD.
    Inventors: Bin YE, Jiguang LU, Lili WANG, Hongjun WANG, Jiancong ZHANG, Bin SUN, Bihua XUAN
  • Publication number: 20200396089
    Abstract: Embodiments of this application relate to a digital certificate management method performed at a computer device. The method includes: receiving a digital certificate generation request submitted by a certificate application node; transmitting identification information to consensus authentication centers for certification to obtain certification results obtained by the consensus authentication centers from performing the certification according to the identification information; determining an identification result corresponding to the certificate application node according to the certification results of the consensus authentication centers; generating, when the certification succeeds, a target digital certificate corresponding to the certificate application node submitting the digital certificate generation request; and writing the target digital certificate as a transaction resource into a blockchain associated with the consensus authentication centers.
    Type: Application
    Filed: August 26, 2020
    Publication date: December 17, 2020
    Inventors: Rui GUO, Maocai LI, Jianjun ZHANG, Zhen ZENG, Zichao TANG, Jiguang LU