Patents by Inventor Longfei Xiao

Longfei Xiao 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: 11498378
    Abstract: A special suspension-type tracked underwater robot adaptable to ultra-soft geological conditions comprises traveling mechanisms, wherein the traveling mechanisms are track-mud sled structures, the mud sled structures are fixedly arranged on two sides of each track, and the bottoms of the mud sled structures are higher than the bottoms of the tracks and are provided with arched plate heads; the arched plate heads are provided with plate water-jet devices capable of spraying water forwards; and in the traveling process of the traveling mechanisms, and the arched plate heads press water downwards to form a water film at the bottoms of the mud sled structures together with the water sprayed by the plate water-jet devices, so that the traveling mud resistance is reduced, and the robot can stably advance under ultra-soft geological conditions.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: November 15, 2022
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Longfei Xiao, Jianmin Yang, Guocheng Zhao, Tao Peng, Lei Tang, Haining Lu, Mingyue Liu, Yufeng Kou, Weijie Zhao
  • Patent number: 11254398
    Abstract: A porous-structure device includes a semi-submersible platform consisting of four columns, two pontoons, two horizontal supports and a deck. Fillets on middle portions of the columns have a square section, a radius of the fillets, close to the deck and the pontoons, of the columns is gradually decreased to 0, a porous device is disposed outside each column and is formed by combining and connecting four single components, and each single component is formed by combining and connecting a plurality of porous laminated plates and a plurality of connecting pieces. The parameters, such as the pore type, porosity, number of layers, interlayer spacing and installation height, of the porous laminated plates are set according to the wave characteristics in different sea areas.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: February 22, 2022
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Longfei Xiao, Zhichao Fang, Haobo Li, Yufeng Kou, Mingyue Liu, Handi Wei, Guocheng Zhao
  • Patent number: 11035751
    Abstract: A positioning device for arrangement of a basin false bottom in ocean engineering comprises a laser transmitting system, a rotating platform system, and a control and calculation system. The laser transmitting system comprises a laser transmitter used for providing laser beams. The rotating platform system comprises a two-degree-of-freedom rotating platform used for carrying the laser transmitter and making the laser beams have spatially arbitrary directivity. The control and calculation system is used for calculating, according to given coordinates, the angle by which the two-degree-of-freedom rotating platform needs to rotate, controlling rotation of the two-degree-of-freedom rotating platform, and making the laser beams transmitted by the laser transmitter accurately indicate the given coordinates at the basin false bottom.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 15, 2021
    Assignee: Shanghai Jiao Tong University
    Inventors: Jianmin Yang, Xinliang Tian, Xiaoxian Guo, Longfei Xiao, Tao Peng
  • Publication number: 20200346722
    Abstract: A porous-structure device includes a semi-submersible platform consisting of four columns, two pontoons, two horizontal supports and a deck. Fillets on middle portions of the columns have a square section, a radius of the fillets, close to the deck and the pontoons, of the columns is gradually decreased to 0, a porous device is disposed outside each column and is formed by combining and connecting four single components, and each single component is formed by combining and connecting a plurality of porous laminated plates and a plurality of connecting pieces. The parameters, such as the pore type, porosity, number of layers, interlayer spacing and installation height, of the porous laminated plates are set according to the wave characteristics in different sea areas.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Longfei XIAO, Zhichao FANG, Haobo LI, Yufeng KOU, Mingyue LIU, Handi WEI, Guocheng ZHAO
  • Publication number: 20200086705
    Abstract: A special suspension-type tracked underwater robot adaptable to ultra-soft geological conditions comprises traveling mechanisms, wherein the traveling mechanisms are track-mud sled structures, the mud sled structures are fixedly arranged on two sides of each track, and the bottoms of the mud sled structures are higher than the bottoms of the tracks and are provided with arched plate heads; the arched plate heads are provided with plate water-jet devices capable of spraying water forwards; and in the traveling process of the traveling mechanisms, and the arched plate heads press water downwards to form a water film at the bottoms of the mud sled structures together with the water sprayed by the plate water-jet devices, so that the traveling mud resistance is reduced, and the robot can stably advance under ultra-soft geological conditions.
    Type: Application
    Filed: October 9, 2019
    Publication date: March 19, 2020
    Inventors: Longfei XIAO, Jianmin YANG, Guocheng ZHAO, Tao PENG, Lei TANG, Haining LU, Mingyue LIU, Yufeng KOU, Weijie ZHAO
  • Patent number: 10480317
    Abstract: A piece of submarine mining equipment comprises an equipment body, a plurality of adaptive submarine mining collectors and respective mineral delivery pipes. The equipment body and the adaptive submarine mining collectors are connected through the mineral delivery pipes. The lengths, stretching out of the equipment body, of the mineral delivery pipes can be adjusted under control. The adaptive submarine mining collectors are provided with tracked traveling mechanisms and can autonomously travel under control. An underwater detector is used for detecting the submarine topography and mineral distribution in the vicinity of an operation area, and the traveling path of the submarine mining collectors and a mineral storage vehicle is reasonably planned according to detected information. The multiple adaptive submarine mining collectors simultaneously and independently work and are made light and small, thus reducing damage of mining operations to the submarine ecological environment.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: November 19, 2019
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Guocheng Zhao, Weijie Zhao, Jianmin Yang, Tao Peng, Longfei Xiao, Xinliang Tian, Haining Lu, Yufeng Kou
  • Publication number: 20190063218
    Abstract: A piece of submarine mining equipment comprises an equipment body, a plurality of adaptive submarine mining collectors and respective mineral delivery pipes. The equipment body and the adaptive submarine mining collectors are connected through the mineral delivery pipes. The lengths, stretching out of the equipment body, of the mineral delivery pipes can be adjusted under control. The adaptive submarine mining collectors are provided with tracked traveling mechanisms and can autonomously travel under control. An underwater detector is used for detecting the submarine topography and mineral distribution in the vicinity of an operation area, and the traveling path of the submarine mining collectors and a mineral storage vehicle is reasonably planned according to detected information. The multiple adaptive submarine mining collectors simultaneously and independently work and are made light and small, thus reducing damage of mining operations to the submarine ecological environment.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Guocheng ZHAO, Weijie ZHAO, Jianmin YANG, Tao PENG, Longfei XIAO, Xinliang TIAN, Haining LU, Yufeng KOU
  • Publication number: 20170370801
    Abstract: A positioning device for arrangement of a basin false bottom in ocean engineering comprises a laser transmitting system, a rotating platform system, and a control and calculation system. The laser transmitting system comprises a laser transmitter used for providing laser beams. The rotating platform system comprises a two-degree-of-freedom rotating platform used for carrying the laser transmitter and making the laser beams have spatially arbitrary directivity. The control and calculation system is used for calculating, according to given coordinates, the angle by which the two-degree-of-freedom rotating platform needs to rotate, controlling rotation of the two-degree-of-freedom rotating platform, and making the laser beams transmitted by the laser transmitter accurately indicate the given coordinates at the basin false bottom.
    Type: Application
    Filed: September 15, 2015
    Publication date: December 28, 2017
    Inventors: Jianmin Yang, Xinliang Tian, Xiaoxian Guo, Longfei Xiao, Tao Peng