Patents Assigned to Tsinghua University
  • Patent number: 11136030
    Abstract: The present disclosure provides a method and a device for controlling a vehicle. The vehicle is in a vehicle queue, the vehicle queue includes n vehicles {vehicle 0, vehicle 1, . . . , vehicle n?1} arranged in order along a traveling direction, the method is performed by a computing device of the vehicle i, i is from 1 to n?1. A vehicle-following subsystem model is established based on the relative speed and the relative vehicle distance error between the vehicle i and a vehicle i?1, and the acceleration of the vehicle i, a state trajectory of the vehicle-following subsystem model on a ?v-?R plane is determined, a plurality of division graphs of the vehicle i?1 in a plurality of travelling phases are combined to obtain a switching control graph for the vehicle i, and the travelling phase of the vehicle i is adjusted.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: October 5, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Shengbo Li, Bo Cheng, Keqiang Li, Hongbo Gao, Xiaoxue Zhang, Renjie Li, Zhitao Wang, Hailiang Chen, Jianqiang Wang, Yugong Luo, Diange Yang
  • Patent number: 11137245
    Abstract: Provided is a Raman spectroscopy method for simultaneously measuring a temperature and a thermal stress of a two-dimensional film material in situ. The method includes: providing the two-dimensional film material including a suspended part and a supported part and measuring Raman signals of the suspended part and the supported part; establishing equations of a Raman shift with temperature and a Raman shift with thermal stress for each of the suspended part and the supported part, and solving simultaneous equations to obtain coefficients with temperature and thermal stress; and scanning a characteristic Raman spectrum field of the two-dimensional film material and obtaining a temperature distribution and a thermal stress distribution of the two-dimensional film material according to the characteristic Raman spectrum field in combination of the coefficients of the Raman shift with temperature and the Raman shift with thermal stress.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: October 5, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xing Zhang, Haidong Wang, Hexin Liu
  • Patent number: 11131262
    Abstract: The invention discloses a device for simulating an evolution process of an internal combustion engine exhaust particle flow for reducing automotive emissions, and the device comprises an exhaust source; an exhaust channel, comprising a plurality of sections of cylindrical tubes with specified length that are fixedly connected; a soluble organic compound generator, used to produce soluble organic compounds; a carbon particle generator, used to produce carbon particles. The device for simulating the evolution process of an internal combustion engine exhaust particle flow for reducing automotive emissions has the advantages of simple structure and low cost; controls the mixing concentration of soot particles and soluble organic compounds through various adjustment methods to obtain a suitable mixed aerosol, so as to better simulate the exhaust particle flow of an internal combustion engine.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: September 28, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xiao Ma, Yifei Gong, Jingyu Zhang, Hongming Xu, Shijin Shuai, Yitao Shen
  • Patent number: 11132372
    Abstract: The present disclosure provides a method and an apparatus for precise positioning of a scholar based on mining of the scholar's scientific research achievement. The method includes: extracting text information in the scholar's scientific research achievement P to obtain key information, and constructing structural information; mining and constructing implicit information O with a geographic directivity in the scholar's scientific research achievement P according to the key information and the structural information; performing a structural arrangement on the structural information, and acquiring a final result R; and acquiring a mapping of A?R according to the final result R and the matrix U, acquiring and outputting the positioning information of the authors in the set A.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 28, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Jie Tang, Zhou Shao, Bo Gao, Debing Liu
  • Patent number: 11133600
    Abstract: The present disclosure provides a spatial feeding end-fire array antenna based on electromagnetic surface technologies, including: a primary feed, configured to transmit and/or receive electromagnetic waves; and a single-layer and/or multi-layer medium-metal combination surface, configured to convert the electromagnetic waves emitted from the primary feed to an end-fire focused beam, or to concentrate space waves received in an end-fire direction into the primary feed. The single-layer and/or multi-layer medium-metal combination surface has a thickness that is equal to or less than one percent of working wavelength of the antenna.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: September 28, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Fan Yang, Min Wang, Shenheng Xu, Maokun Li
  • Patent number: 11131841
    Abstract: A scanning light field microscopic imaging system includes: a microscope configured to magnify a sample and image the sample onto a first image plane of the microscope; a relay lens configured to magnify or minify the first image plane; a 2D scanning galvo configured to rotate an angle of a light path in the frequency domain plane; the microlens array configured to modulate a beam with a preset angle to a target spatial position at a back focal plane of the microlens array and modulate the first image plane to obtain a modulated image; an image sensor configured to record the modulated image; and a reconstruction module configured to reconstruct a 3D structure of the sample based on the modulated image acquired from the image sensor.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 28, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Qionghai Dai, Zhi Lu, Jiamin Wu
  • Patent number: 11125337
    Abstract: A housing for a magnetic fluid sealing device and an agitation kettle/reaction kettle are disclosed. The housing includes: a first end cover, a casing and an elastic member. The first end cover is spaced apart from a first portion of the casing in radially inward and outward directions of the casing. At least one of the casing, a positioning platform and the first end cover is provided with a mounting groove, and the elastic member is arranged in the mounting groove. A first sealing ring is provided between the casing and the first end cover.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: September 21, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Decai Li, Qian Li, Zhi Gao
  • Patent number: 11125626
    Abstract: A cavity black body radiation source is provided. The cavity black body radiation source comprises a blackbody radiation cavity, a black lacquer, and a carbon nanotube layer. The blackbody radiation cavity comprises an inner surface. The black lacquer is located on the inner surface. The carbon nanotube layer is located on a surface of the black lacquer away from the blackbody radiation cavity. The carbon nanotube layer comprises a plurality of carbon nanotubes and a plurality of microporous. A method of making the cavity blackbody radiation source is also provided.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 21, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Wei, Guang Wang, Shou-Shan Fan
  • Patent number: 11127540
    Abstract: An energy storage device is provided which includes a supercapacitor first electrode, a supercapacitor second electrode, a first electrolyte, a metal electrode, and a hydrophobic layer. The supercapacitor first electrode, the supercapacitor second electrode, and the first electrolyte together form a supercapacitor. The metal electrode is spaced apart from the supercapacitor first electrode to form a first gap, the metal electrode and the supercapacitor second electrode form an Ohmic contact. The hydrophobic layer is located on at least one portion of a surface of the supercapacitor first electrode and/or at least one portion of a surface of the supercapacitor second electrode.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 21, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zhi-Ling Luo, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 11127677
    Abstract: Provided is a resistor structure of a series resistor of an Electro-Static Discharge (ESD) device. A poly resistor is divided into N small parts, and each small part is connected to an upper-part metal layer through a respectively corresponding Contact and Via. The Contact and Via corresponding to each small part and the connected upper-part metal layer form an independent unit. A metal aluminum material is adopted for the Via and the upper-part metal layer. The metal aluminum material or an aluminum alloy material is adopted for the Contact. A heat capacity characteristic of metal aluminum is utilized, and an existing structure is ingeniously utilized, so that the resistor may be prevented from being damaged by heating caused by the same ESD current, and meanwhile, an overall size of a circuit where the ESD device is located is greatly reduced.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 21, 2021
    Assignee: SICHUAN ENERGY INTERNET RESEARCH INSTITUTE, TSINGHUA UNIVERSITY
    Inventors: Yike Li, Nie Li
  • Patent number: 11127953
    Abstract: The present invention relates to a carbon nanotube-transition metal oxide composite and a method for making the composite. The composite comprises at least one carbon nanotube and a plurality of transition metal oxide nanoparticles. The plurality of transition metal oxide nanoparticles are chemically bonded to the at least one carbon nanotube through carbon-oxygen-metal (C—O-M) linkages, wherein the metal is a transition metal element. The method for making the composite comprising the following steps: step 1, providing at least one carbon nanotube obtained from a super-aligned carbon nanotube array; step 2, pre-oxidizing the at least one carbon nanotube; step 3, dispersing the at least one carbon nanotube in a solvent to form a first suspension; step 4, dispersing a material containing transition metal oxyacid radicals in the first suspension to form a second suspension; and step 5, removing the solvent from the second suspension and drying the second suspension.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: September 21, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Da-Tao Wang, Li Sun, Ke Wang, Jia-Ping Wang, Shou-Shan Fan
  • Publication number: 20210284174
    Abstract: The invention discloses a method and a system for calibrating a driving risk identification model. The calibration method comprises: S1. establishing a vehicle platform by installing an information acquisition device on a test vehicle; S2. acquiring synchronized test data related to the test vehicle and driving scenarios; S3. extracting moments when the drivers start to press the accelerator pedal, start to release the accelerator pedal, start to press the brake pedal in the driving scenarios, and start to release the brake pedal, so as to define risk level values respectively corresponding to the moments; S4. obtaining a risk identification curve of the drivers in different driving scenarios, wherein the risk identification curve represents the drivers' judgment of the risk level over time; S5. using the risk identification curve to calibrate the driving risk identification model.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 16, 2021
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Jianqiang WANG, Heye HUANG, Xunjia ZHENG, Keqiang LI, Qing XU, Shengbo LI, Likun WANG, Ziqing GU, Jiawei WANG
  • Patent number: 11120276
    Abstract: A deep multimodal cross-layer intersecting fusion method, a terminal device and a storage medium are provided. The method includes: acquiring an RGB image and point cloud data containing lane lines, and pre-processing the RGB image and point cloud data; and inputting the pre-processed RGB image and point cloud data into a pre-constructed and trained semantic segmentation model, and outputting an image segmentation result. The semantic segmentation model is configured to implement cross-layer intersecting fusion of the RGB image and point cloud data. In the new method, a feature of a current layer of a current modality is fused with features of all subsequent layers of another modality, such that not only can similar or proximate features be fused, but also dissimilar or non-proximate features can be fused, thereby achieving full and comprehensive fusion of features. All fusion connections are controlled by a learnable parameter.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: September 14, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xinyu Zhang, Zhiwei Li, Huaping Liu, Xingang Wu
  • Patent number: 11121341
    Abstract: An organic light emitting diode includes a support body, an anode electrode, a hole transport layer, an organic light emitting layer and an electron transport layer stacked on each other in that order. The electron transport layer has a first surface and a second surface opposite to the first surface. The electron transport layer includes a polymer and a plurality of first carbon nanotubes dispersed in the polymer, and partial surface of the plurality of first carbon nanotubes is exposed from the first surface and is in direct contact with the organic light emitting layer.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 14, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wen Ning, Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 11120950
    Abstract: The disclosure relates to a self-charging device for energy harvesting and storage. The self-charging device for energy harvesting and storage includes a first electrode, a second electrode spaced from the first electrode, a solid electrolyte bridging the first electrode and the second electrode, and a water absorbing structure. The water absorbing structure is located on the second electrode, absorbs water from external environment and transmits the absorbed water to the solid electrolyte.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 14, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zhi-Ling Luo, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 11110448
    Abstract: Provided is a method for preparing gold nanorods having a high catalytic activity by using a femtosecond laser. The method includes: (1) preparing a gold seed solution; (2) preparing a gold nanorod solution by a seed solution growth process; (3) subjecting the gold nanorod solution to a centrifugal separation to obtain the gold nanorods, and dropping the gold nanorods on a silicon substrate; (4) building a system for preparing the gold nanorods having the high catalytic activity by using the femtosecond laser; and (5) emitting a pulse of the femtosecond laser on the silicon substrate, to allow an electric field distribution of a surface of the gold nanorod on the silicon substrate to change, to partially exfoliate atoms on the surface of the gold nanorod, thereby obtaining the gold nanorod with the high catalytic activity.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: September 7, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Jianfeng Yan, Dezhi Zhu, Yue Zhao
  • Patent number: 11112364
    Abstract: A molecular detection device is related. The device includes a carrier, a detector and a control computer. The carrier includes a substrate, a middle layer and a metal layer. The middle layer is sandwiched between the substrate and the middle layer. The detector is configured to detect molecules on a surface of the carrier. The control computer is connected to the detector and configured to analyze a detection result. The middle layer includes a base and a patterned bulge on the base, and the patterned bulge includes a plurality of strip-shaped bulges, the metal layer is on the patterned bulge.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: September 7, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ying-Cheng Wang, Yuan-Hao Jin, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 11111175
    Abstract: The disclosure relates to a hydrophobic window. The hydrophobic window includes a frame; a glass embedded in the frame; and a hydrophobic film on a surface of the glass. The hydrophobic film comprises a flexible substrate and a hydrophobic layer. The flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base. The hydrophobic layer is on the surface of the patterned first bulge layer.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 7, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yuan-Hao Jin, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 11111601
    Abstract: The disclosure relates to a semimetal compound of Pt and a method for making the same. The semimetal compound is a single crystal material of PtSe2. The method comprises: providing a PtSe2 polycrystalline material; placing the PtSe2 polycrystalline material in a reacting chamber; placing chemical transport medium in the reacting chamber; evacuating the reacting chamber to be vacuum less than 10 Pa; placing the reacting chamber at a temperature gradient, wherein the reacting chamber has a first end at a temperature of 1200 degrees Celsius to 1000 degrees Celsius and a second end opposite to the first end and at a temperature of 1000 degrees Celsius to 900 degrees Celsius; and keeping the reacting chamber in the temperature gradient for 10 days to 30 days.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: September 7, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ke-Nan Zhang, Ming-Zhe Yan, Shu-Yun Zhou, Yang Wu, Shou-Shan Fan
  • Patent number: 11111147
    Abstract: A method for making a carbon nanotube composite structure includes the following steps: dispersing a plurality of carbon nanotubes in water, to form a carbon nanotube dispersion; adding an aniline solution into the carbon nanotube dispersion, to form a mixed solution; adding an initiator into the mixed solution, to form a carbon nanotube composite structure preform; freeze-drying the carbon nanotube composite structure preform in a vacuum environment; and carbonizing the carbon nanotube composite structure preform in a protective gas after freeze-drying. The present application also relates to the carbon nanotube composite structure.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 7, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yue-Gang Zhang, Lu-Jie Jia, Jian Wang, Yang Wu, Shou-Shan Fan