Patents by Inventor Zheng Ma

Zheng Ma 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: 12274208
    Abstract: A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 15, 2025
    Assignee: JIANGSU UNIVERSITY
    Inventors: Lizhang Xu, Jinpeng Hu, Peng Liu, Shuaifeng Xing, Jiahui Pan, Xiaoyu Chai, Zheng Ma
  • Publication number: 20250048966
    Abstract: A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.
    Type: Application
    Filed: September 22, 2022
    Publication date: February 13, 2025
    Applicant: JIANGSU UNIVERSITY
    Inventors: Lizhang XU, Jinpeng HU, Peng LIU, Shuaifeng XING, Jiahui PAN, Xiaoyu CHAI, Zheng MA
  • Publication number: 20250051886
    Abstract: The disclosure relates to the technical field of preparing the metal material of magnesium alloy, and particularly provides a method for preparing biomedical magnesium alloy wires. The magnesium, zinc, and neodymium alloys are subject to smelting, casting, rolling, and other processes to prepare plates. The plates are subjected to a special mechanical stirring process to prepare a processing zone with the same thickness as the plates. After machining, the processing zone is used as the final product of the wire or drawn in multiple passes to finally form the wire with the required diameter.
    Type: Application
    Filed: August 26, 2024
    Publication date: February 13, 2025
    Inventors: Zheng MA, Lili TAN, Ke YANG
  • Publication number: 20240405692
    Abstract: An inverter includes a housing and a first connector, where a circuit board is disposed on an inner side of the housing, and an inverter circuit is disposed in the circuit board. The first connector includes a first housing and a first conductive core. The first housing is fastened to the housing. The first conductive core is located in the first housing and extends into the inner side of the housing. The first conductive core includes a first connecting plate located on the inner side of the housing. The first connecting plate is of a flat structure. The first connecting plate can be connected to the circuit board without a cable.
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Inventors: Chao Chen, Zheng Ma
  • Patent number: 12039733
    Abstract: A method for identifying an individual of an oplegnathus punctatus based on a convolutional neural network is provided. Target initial positioning involves three continuous convolutional layers and an average pooling layer. A region of feature interest point is obtained, a hyperparameter candidate box is set to obtain a region, thereby obtaining an approximate position of a target object. II_Net backbone convolutional neural network includes six convolutional layers and four pooling layers, which includes a LeakyReLU activation function used as an activation function of the first convolutional layer, convolutional network layers of Alexnet and parameter data, and a maximum pooling layer of an overlapped pooling structure. Fully connected layers use a genetic algorithm to improve data transmission between layers. With the established model, identification of the individual of the oplegnathus punctatus is performed by using test data.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: July 16, 2024
    Assignee: Ludong University
    Inventors: Jun Yue, Beibei Li, Shixiang Jia, Zhenbo Li, Qing Wang, Zheng Ma, Guangjie Kou, Tao Yao, Zhenzhong Li
  • Patent number: 12034380
    Abstract: This application discloses an inverter circuit for an inverter such as a photovoltaic inverter. Also disclosed are inverters and photovoltaic power systems including such inverter circuits. The inverter circuit is based on a HERIC topology, and in the inverter circuit a third capacitor and a fourth capacitor are bridge-connected between a bus and a first longitudinal bridge and between the bus and a second longitudinal bridge respectively. In this way, when the inverter circuit goes from a starting phase to a freewheeling phase, the third capacitor and the fourth capacitor can stabilize a voltage fluctuation caused by different turn-off speeds of the switching transistors in the HERIC topology, to prevent resonance caused by the voltage fluctuations.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: July 9, 2024
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Dechen Wang, Peng Shi, Zheng Ma
  • Patent number: 12027952
    Abstract: The present disclosure provides a superconducting power generation device and a power generation method. The device includes a superconductor, a conductive coil, a permanent magnet and a cooling medium. When ambient temperature is lower than its superconducting critical temperature, the superconductor, made of the second-type superconducting material, is capable of generating a magnetic levitation force to an outer permanent magnet and levitate it. When an external force is applied to the permanent magnet, its position changes compared to the conductive coil, which affects the magnetic flux passing through the coil and induces the generation of electromotive force in the coil, thereby converting mechanical energy to electric energy.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: July 2, 2024
    Assignee: Huazhong University of Science and Technology
    Inventors: Bin Su, Zheng Ma, Chunze Yan, Yusheng Shi
  • Publication number: 20230327567
    Abstract: A package structure of a bidirectional switch, including a metal bottom plate, a first semiconductor switch, a second semiconductor switch, and a plurality of inner pins. The plurality of inner pins includes a first inner pin, a second inner pin, a third inner pin, a fourth inner pin, and a fifth inner pin. Both a first terminal of the first semiconductor switch and a first terminal of the second semiconductor switch are coupled to the metal bottom plate. A second terminal of the first semiconductor switch is coupled to the first inner pin. A third terminal of the first semiconductor switch is coupled to the second inner pin. A second terminal of the second semiconductor switch is coupled to the third inner pin. A third terminal of the second semiconductor switch is coupled to the fourth inner pin. Each inner pin is coupled to a same lead frame.
    Type: Application
    Filed: March 20, 2023
    Publication date: October 12, 2023
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Zheng MA, Dong CHEN, Xiaofeng YAO
  • Publication number: 20230107960
    Abstract: The present disclosure relates to the technical field of biomedical materials, more particularly to a degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof. The anastomotic staple, with a composite structure, is mainly composed of Mg—Zn—Nd magnesium alloy with high strength and good plasticity (internal part), and corrosion-resistant MgF2 (external part), and is formed by in-situ synthesis of MgF2 with the outer layer of Mg—Zn—Nd magnesium alloy anastomotic staple. The magnesium alloy composite anastomotic staple provided by the present disclosure has good plastic deformation ability and mechanical strength, a low degradation rate, and a high biosafety level, which can meet the in-vivo implantation requirements. In addition, it can gradually degrade in vivo after achieving the medical effects in vivo, avoiding a second operation for removal.
    Type: Application
    Filed: December 1, 2022
    Publication date: April 6, 2023
    Inventors: Zheng MA, Lili TAN, Ke YANG
  • Publication number: 20230050236
    Abstract: Disclosed are an anti-icing material with stealth function, a preparation method and use thereof. The anti-icing material with stealth function according to the disclosure includes an electrically insulating and thermally insulating layer, a patterned heating layer, an electrically insulating and thermally conducting layer, and a hydrophobic layer, that are disposed sequentially through stacking, wherein the patterned heating layer has a patterned hollowed-out structure.
    Type: Application
    Filed: March 16, 2022
    Publication date: February 16, 2023
    Inventors: Huawei CHEN, Xiaolin LIU, Jichen CHEN, Yantong ZHU, Zehui ZHAO, Zelinlan WANG, Xiaoyang ZHAN, Zheng MA
  • Publication number: 20220276360
    Abstract: Methods, apparatus, systems for calibrating sensors are provided. In one aspect, a sensor includes a radar and a camera, and a first calibration plate is located within a common field of view range of the radar and the camera. A calibration method for the sensor includes: collecting a plurality of first images by the camera, position-orientation information of the first calibration plate in position-orientations in the plurality of first images being different; obtaining a first intrinsic parameter of the camera; determining an extrinsic parameter of the first calibration plate in each position-orientation relative to the camera according to the first intrinsic parameter and the plurality of first images; obtaining multiple sets of radar point cloud data of the first calibration plate in each position-orientation; and determining a target extrinsic parameter between the radar and the camera according to the extrinsic parameter and the multiple sets of radar point cloud data.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Zheng MA, Guohang YAN, Chunxiao LIU, Jianping SHI
  • Publication number: 20220276339
    Abstract: Methods, apparatus, systems, and storage media for calibrating sensors are provided. In one aspect, a calibration method for a sensor having a camera and a radar includes: collecting a plurality of images of a calibration plate located within a common field of view range of the radar and the camera in respective position-orientations by the camera; collecting multiple sets of radar point cloud data of the calibration plate in the respective position-orientations by the radar; establishing corresponding relationships between the plurality of images and the multiple sets of radar point cloud data based on the respective position-orientations; determining multiple sets of target radar point cloud data matched with the calibration plate in the respective position-orientations among the multiple sets of radar point cloud data; and determining a target extrinsic parameter between the radar and the camera according to the target radar point cloud data and corresponding relationships.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Zheng MA, Guohang YAN, Chunxiao LIU, Jianping SHI
  • Patent number: 11428603
    Abstract: An assembly quality detection device and a method for a wind screen cleaning system based on streamline pattern, includes a main body of a test bench and a detection system. The main body of the test bench includes a test bench rack and a cleaning centrifugal fan; the inside of the test bench rack is provided with a cleaning space. The detection system includes a smoke generation and transmission device, a two-degree-of-freedom smoke fixed-point release mechanism, a high-speed image acquisition system and a control system. A fixed base is installed on the upper end of the outlet of the cleaning centrifugal fan, a linear moving guide rail device is installed on the fixed base, the linear moving guide rail device is equipped with a moving slider, the moving slider is installed with a rotating mechanism, the rotating mechanism output end is provided with a smoke releasing duct, the smoke releasing duct is communicated with the smoke generation and transmission device.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 30, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Zheng Ma, Min Han, Yaoming Li, Lizhang Xu, Xinzhong Wang, Zhong Tang, Hongxin Li
  • Publication number: 20220249017
    Abstract: The present invention describes a system and method for selecting and optimizing a sound stimulus using a deep neural network to regulate and improve human sleep quality. The deep neural network has the capability of characterizing processing of human brain cortical neurons for external stimulus (images, sounds, etc.) information. By inputting massive sound stimuli into the deep neural network, a sound mode which causes model-estimated sleep electroencephalograph to be optimal can be found, the sound mode is applied to a real human body, and the intensity of corresponding sleep waves of the human body in different sleep stages is enhanced through closed-loop optimization so as to realize the purpose of regulating sleep. The present invention mainly aims at solving the technical problem of how to select and optimize, when a sound stimulus means (music, speech, natural sounds, white/colored noise, etc.) is used to assist in human sleep.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: Huihui ZHOU, Zheng MA, Jin XIE
  • Patent number: 11330764
    Abstract: A threshing device with two-way pull wires and adjustable threshing clearance includes a tensioning mechanism, and several grid bars in clearance fit with side plates, wherein the tensioning mechanism is mounted on the several grid bars so that the grid bars can move in radial and tangential directions in the clearance; the tensioning mechanism includes a tangential tensioning device and a radial tensioning device, wherein the radial tensioning device is mounted in the radial direction of any one of the grid bars, so that the grid bars can move in the radial direction in the clearance; the tangential tensioning device is mounted in series in the tangential direction of the grid bars, so that the grid bars can move in the tangential direction in the clearance. Further disclosed is a combined harvester, which includes the threshing device with two-way pull wires and adjustable threshing clearance.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: May 17, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Zheng Ma, Min Han, Yaoming Li, Lizhang Xu, Kechao Ma, Zhong Tang, En Lu, Zhenwei Liang
  • Patent number: 11313466
    Abstract: A piston assembly for an internal combustion engine of a motor includes a piston head having an outer diameter surface spaced a first distance from the longitudinal axis and an annular surface spaced a second distance from the longitudinal axis, with the second distance being less than the first distance. Upper and lower walls extend between the annular surface and the outer diameter surface so as to define an annular groove in the outer diameter surface. A piston ring is received within the annular groove and includes an inner diameter surface facing the annular surface of the piston head. The inner diameter surface of the piston ring and the annular surface of the piston head cooperate with one another to define a plurality of pockets angularly spaced from one another about the longitudinal axis and configured to receive oil.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: April 26, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Balakrishna Chinta, John B Fisher, Zheng Ma
  • Patent number: 11306586
    Abstract: An intelligent detection and recognition system and method for a coal-rock interface of a mine are provided. The intelligent detection and recognition system mainly includes an intelligent lifting support fastened to the top of a shearer, a non-contact radar antenna disposed at the top of the intelligent lifting support, and an operating terminal with which the radar antenna wirelessly conducts information transmission. In an operating state, a radiation direction of the radar antenna is perpendicular to the surface of a to-be-detected coal seam, and the operating terminal is configured to acquire radar data of the to-be-detected coal seam collected by the radar antenna, and draw and display a coal-rock horizon occurrence curve according to the radar data.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 19, 2022
    Assignee: China University of Mining and Technology-Beijing
    Inventors: Xianlei Xu, Suping Peng, Zheng Ma, Biao Guo, Tao Sun
  • Publication number: 20220085756
    Abstract: This application discloses an inverter circuit for an inverter such as a photovoltaic inverter. Also disclosed are inverters and photovoltaic power systems including such inverter circuits. The inverter circuit is based on a HERIC topology, and in the inverter circuit a third capacitor and a fourth capacitor are bridge-connected between a bus and a first longitudinal bridge and between the bus and a second longitudinal bridge respectively. In this way, when the inverter circuit goes from a starting phase to a freewheeling phase, the third capacitor and the fourth capacitor can stabilize a voltage fluctuation caused by different turn-off speeds of the switching transistors in the HERIC topology, to prevent resonance caused by the voltage fluctuations.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Dechen WANG, Peng SHI, Zheng MA
  • Patent number: 11272664
    Abstract: A device for conveying and feeding wet material for a cross-flow hot air combine harvester, the device consisting of a hot air pumping part and a material conveying part. The hot air pumping part uses an air suction pump (4) to pump a flow of hot waste air from an engine radiator (1) of the combine harvester by means of an air suction pipeline (3) so as to provide hot air flow for the material conveying and feeding device. The material conveying part consists of a chain harrow-type conveying groove structure (A) and a cross-flow air chamber structure (B), wherein the chain harrow-type conveying groove structure (A) is used for forcibly conveying and feeding a material; and the cross-flow air chamber structure (B) uses hot air to dry the material, blows to assist in feeding the material, and uses a cross-flow air wheel (14) to forcibly feed the material.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 15, 2022
    Assignee: Jiangsu University
    Inventors: Yaoming Li, Zheng Ma, Lizhang Xu, Zhong Tang, Jianting Wang, Min Han
  • Publication number: 20220057231
    Abstract: Embodiments of the present description provide methods and apparatuses for detecting map calibration errors. In one aspect, a method includes: acquiring a map including at least one map element, determining at least one of feature information of the at least one map element or a navigation line according to the map, and determining whether a map element is calibrated wrongly according to the at least one of the feature information or the navigation line.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Inventors: Zheng MA, Zeyu WANG, Lei DU, Chunxiao LIU, Jianping SHI