Patents by Inventor Da Zhong

Da Zhong 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: 11488010
    Abstract: Provided is an intelligent analysis system for inner detecting magnetic flux leakage (MFL) data in pipelines, including a complete data set building module, a discovery module, a quantization module and a solution module, wherein: a complete data set building method is adopted in the complete data set building module to obtain a complete magnetic flux leakage data set; a pipeline connecting component discovery method is adopted in the discovery module to obtain the precise position of a weld; an anomaly candidate region search and identification method is adopted in the discovery model to find out magnetic flux leakage signals with defects; a defect quantization method based on a random forest is adopted in the quantization module to obtain a defect size; and a pipeline solution based on an improved ASME B31G standard is adopted in the solution module to output an evaluation result.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: November 1, 2022
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Jin hai Liu, Ming rui Fu, Sen xiang Lu, Hua guang Zhang, Da zhong Ma, Gang Wang, Jian Feng, Xin bo Zhang, Ge Yu, Hong qiu Wei
  • Publication number: 20200210826
    Abstract: Provided is an intelligent analysis system for inner detecting magnetic flux leakage (MFL) data in pipelines, including a complete data set building module, a discovery module, a quantization module and a solution module, wherein: a complete data set building method is adopted in the complete data set building module to obtain a complete magnetic flux leakage data set; a pipeline connecting component discovery method is adopted in the discovery module to obtain the precise position of a weld; an anomaly candidate region search and identification method is adopted in the discovery model to find out magnetic flux leakage signals with defects; a defect quantization method based on a random forest is adopted in the quantization module to obtain a defect size; and a pipeline solution based on an improved ASME B31G standard is adopted in the solution module to output an evaluation result.
    Type: Application
    Filed: February 13, 2019
    Publication date: July 2, 2020
    Inventors: Jin hai LIU, Ming rui FU, Sen xiang LU, Hua guang ZHANG, Da zhong MA, Gang WANG, Jian FENG, Xin bo ZHANG, Ge YU, Hong qiu WEI
  • Patent number: 9013958
    Abstract: The present invention relates to a device for positioning submarine pipeline robots and method. The device comprises a pressure wave generator and a device for pressure wave acquiring and processing. The method comprises the following steps of (1) determining the generation mode; (2) acquiring pressure signals; (3) filtering pressure signals; (4) dividing the filtered pressure signals of into the same group; (5) identifying the data during this period in real time; (6) determining the moving state of the robot in the pipeline; (7) calculating the position of the robot in the pipeline; (8) ending the operations, otherwise repeating Step 4 to Step 7 continuously. The present invention has the advantages that the position of submarine pipeline robots can be located in real time. In addition, the severe environment around the pipelines can hardly affect the performance under this method.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: April 21, 2015
    Assignee: Northeastern University
    Inventors: Huaguang Zhang, Jinhai Liu, Jian Feng, Jilei Li, Xiangxiang Wei, Da zhong Ma, Zhen wei Liu, Xin gang Zhang
  • Publication number: 20130174937
    Abstract: A puncture free bottle cork has a body and a cap for covering a bottle opening. The body has at least one channel defined therein for receiving a syringe or an infusion bottle connector. The body is composed of an exterior body and a flange integrally formed with and extending downward from the exterior body for direct insertion of the bottle opening. The number of the at least one channel corresponds to number of the syringe or the infusion bottle connector such that when the number of the at least one channel is one, injection and drawing of medication to/from the bottle is using the single one channel and when the number of the at least one channel is plural, injection and drawing of medication to/from the bottle is using different channels.
    Type: Application
    Filed: September 6, 2011
    Publication date: July 11, 2013
    Applicant: HAINAN WEIKANG PHARMACEUTICAL (QIANSHAN) CO.,LTD
    Inventors: Liuyi Wang, Jincan Wang, Zuhong Li, Da Zhong, Xiaofang Gui
  • Publication number: 20130073081
    Abstract: The present invention relates to a device for positioning submarine pipeline robots and method. The device comprises a pressure wave generator and a device for pressure wave acquiring and processing. The method comprises the following steps of (1) determining the generation mode; (2) acquiring pressure signals; (3) filtering pressure signals; (4) dividing the filtered pressure signals of into the same group; (5) identifying the data during this period in real time; (6) determining the moving state of the robot in the pipeline; (7) calculating the position of the robot in the pipeline; (8) ending the operations, otherwise repeating Step 4 to Step 7 continuously. The present invention has the advantages that the position of submarine pipeline robots can be located in real time. In addition, the severe environment around the pipelines can hardly affect the performance under this method.
    Type: Application
    Filed: March 25, 2011
    Publication date: March 21, 2013
    Applicant: NORTHEAST UNIVERSITY
    Inventors: Huaguang Zhang, Jinhai Liu, Jian Feng, Jilei Li, Xiangxiang Wei, Da zhong Ma, Zhen wei Liu, Xin gang Zhang
  • Publication number: 20100011289
    Abstract: In one embodiment, a computer-implemented method of converting a document to an image set includes receiving the document; generating a conversion specification with a unique document identifier and a set of image parameters; combining the conversion specification and the stored document into a conversion task object; generating the image set using the conversion task object; and providing the generated image set to an image server. In another embodiment, a computer-implemented system for viewing documents includes a first node configured to receive a document file from a first user and generate a conversion specification using the unique identifier and a set of image parameters relating to the document file. A conversion feeder receives and converts the conversion specification and the document file into a conversion task object. At least one converter generates an image set including one or more images related to the document file by using the conversion task object.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Applicant: THELADDERS.COM, INC.
    Inventors: Alain BENZAKEN, Gregg DONOVAN, Zhi-Da ZHONG, Drew SCHWARTZ
  • Publication number: 20020143961
    Abstract: A customer profile access protocol with flexible access control capabilities is provided. The protocol facilitates secure and privacy enabled access to user profile data. The user profile data may be accessed by clients, such as other users, service providers and system administrators. The user profile data may be used by service providers and system administrators. The user profile data may be used by service providers to customize services provided to users. Permissions that control profile access may be established under user control. The user may specify different permissions for different grains of information within the user profile. For example, a first set of permissions may be associated with the entire user profile whereas a second set of permissions may be associated with a particular field in the user profile. Clients may be grouped such that permissions may be associated with a single group or combinations of groups specified by algebraic set operators.
    Type: Application
    Filed: March 14, 2001
    Publication date: October 3, 2002
    Inventors: Eric Victor Siegel, Eleazar Eskin, Alexander Day Chaffee, Zhi-Da Zhong
  • Patent number: 6225870
    Abstract: The present invention relates to a kind of microwave cavity for atomic frequency standard, which consists of slotted tube, cylindrical cavity body, dielectric ring, heating filament, screw bolt for adjustment of cavity frequency. Its characteristics are listed as follows: 1. There are slots and electrodes at the upside of slotted tube. 2. The slotted tube and the bottom cap of the cavity are made as a whole. 3. The Rb absorption cell is inserted in the slotted tube. 4. The dielectric ring is inserted between the slotted tube and the cylindrical cavity body. 5. There is one or more screw hole in the wall of cylindrical cavity body. 6. One or more screw bolt for adjustment of cavity frequency is installed into the screw hole.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: May 1, 2001
    Assignee: Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences
    Inventors: Ganghua Mei, Da Zhong, Shaofeng An, Jinting Liu, Xueren Huang