Patents Assigned to Hefei University of Technology
-
Patent number: 11186057Abstract: A press machine is provided. Two vertical hydraulic cylinders are arranged on an upper beam plate of a press machine body, and the two hydraulic cylinders correspond to workbenches at corresponding positions in a one-to-one correspondence, constituting left and right working units, and a common mechanical drive unit and a common hydraulic drive unit are set for the left and right working units. The mechanical driving unit is composed of a driving motor through an electromagnetic clutch, an electromagnetic brake and lead screw nut driving mechanism driven by a gear pair. According to the load profiles during the working process of hydraulic press machine, the mechanical driving unit or the hydraulic driving unit are selected to provide energy for the two working units. A control method for the press machine, a press machine execution system and a control method for the press machine execution system are further involved.Type: GrantFiled: September 9, 2019Date of Patent: November 30, 2021Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Haihong Huang, Lei Li, Zhicheng Cao, Zhifeng Liu
-
Publication number: 20210364005Abstract: A method for designing an impeller with a small hub-tip ratio includes the following steps: S1: obtaining an outer diameter D of the impeller with the small hub-tip ratio; S2: determining the number of blades and an airfoil of the blade of the impeller with the small hub-tip ratio; S3: obtaining a blade solidity sy at a rim of the impeller with the small hub-tip ratio and a blade solidity sg at a hub of the impeller with the small hub-tip ratio; S4: dividing the blades of the impeller with the small hub-tip ratio into m cylindrical sections in an equidistant manner, marking the cylindrical sections as 1-1, 2-2, . . . , m-m in sequence from the hub to the rim, and obtaining an airfoil setting angle ?L of each of the cylindrical sections; and S5: performing a correction on the value of the airfoil setting angle ?L in S4.Type: ApplicationFiled: August 21, 2019Publication date: November 25, 2021Applicant: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Hao YAN, Qiang LI, Xiaozhen SU, Yu ZHANG, Liang CHEN, Liping CHAI, Haixia SHI
-
Patent number: 11181884Abstract: According to a machining principle of the CNC gear hobbing machine, a functional relation between a geometric error of a gear and a tracking error of each motion axis of the machine tool is constructed; a machining error mathematical model of tooth profile deviation, tooth pitch deviation and tooth direction deviation at each position control time point is established by tracking errors of each motion axis; a compensation quantity required for a workpiece rotation axis at the next position control time point is calculated by establishing a decoupling compensation model; average absolute values of machining errors and a total compensation quantity of the machining errors under the conditions of not adopting the synchronous control method and adopting the synchronous control method in the total position control time are obtained by calculating machining error values of each position controls time point, and the synchronized multi-axis motion control is completed.Type: GrantFiled: April 21, 2020Date of Patent: November 23, 2021Assignee: Hefei University of TechnologyInventors: Xiaoqing Tian, Dan Li, Yu Wu
-
Publication number: 20210334333Abstract: The present application discloses a verification system and method for an operation result based on a reconfigurable butterfly unit. The system is applicable to a digital signal processing (DSP) chip. The DSP chip includes a reconfigurable butterfly unit. The reconfigurable butterfly unit may be reconfigured into two modes: a first verification mode and a second verification mode. The system includes: a controller, a memory, a verification unit, a first data gating unit, and a second data gating unit. The technical solution in the present application is used to overcome the disadvantage that an existing verification system and an existing verification method consume large hardware resources, thereby reducing the implementation costs of operation result verification.Type: ApplicationFiled: February 10, 2021Publication date: October 28, 2021Applicant: HeFei University of TechnologyInventors: Yukun Song, Zhengmao Wang, Duoli Zhang, Xu Tang, Zhenmin Li, Gaoming Du
-
Publication number: 20210299860Abstract: The present invention provides a method for robot action imitation learning in a three-dimensional space and a system thereof, relates to the technical fields of artificial intelligence and robots. A method based on a series-parallel multi-layer backpropagation (BP) neural network is designed for robot action imitation learning in a three-dimensional space, which applies an imitation learning mechanism to a robot learning system, under the framework of the imitation learning mechanism, to train and learn by transmitting demonstrative information generated from a mechanical arm to the series-parallel multi-layer BP neural network representing a motion strategy.Type: ApplicationFiled: October 13, 2020Publication date: September 30, 2021Applicant: Hefei University of TechnologyInventors: Minglun REN, Yuanyuan MA
-
Publication number: 20210293881Abstract: A vector-valued regularized kernel function approximation (VVRKFA) based fault diagnosis method for an analog circuit comprises the following steps: (1) obtaining fault response voltage signals of an analog circuit; (2) performing wavelet packet transform on the collected signals, and calculating wavelet packet coefficient energy values as feature parameters; (3) optimizing regularization parameters and kernel parameters of VVRKFA by using a quantum particle swarm optimization algorithm and training a fault diagnosis model; and (4) identifying a circuit fault by using the trained diagnosis model. In the invention, the classification performance of the VVRKFA method is superior to other classification algorithms, and optimization of parameters by the quantum particle swarm optimization (QPSO) algorithm is also superior to the traditional method of obtaining parameters.Type: ApplicationFiled: December 7, 2017Publication date: September 23, 2021Applicant: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Yigang HE, Wei HE, Baiqiang YIN, Bing LI, Zhigang LI, Lei ZUO, Chaolong ZHANG
-
Patent number: 11116682Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.Type: GrantFiled: August 30, 2018Date of Patent: September 14, 2021Assignee: Hefei University of TechnologyInventors: Ning An, Liuqi Jin
-
Patent number: 11065170Abstract: A smart medical rehabilitation device comprises a driving unit, a linkage unit, a sensing unit and a rehabilitation evaluating unit that are mounted on a frame, wherein the linkage unit comprises a link mechanism and a slide mechanism linked thereto so that the slide mechanism can be moved together with the link mechanism, wherein the slide mechanism is driven by the driving unit to slide along the groove plate, the link mechanism is linked to move with the slide mechanism thus the link mechanism moves to the corresponding position so that the slide mechanism can assist a training object in performing lower limb rehabilitation training, and the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status in real time.Type: GrantFiled: November 16, 2017Date of Patent: July 20, 2021Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Jiaoyun Yang, Ping Zhao, Lihong Zhu, Liang Zhang, Ning An, Ping Zhang
-
Patent number: 11067992Abstract: The present invention provides a path planning method and system for self-driving of autonomous system, and relates to the technical field of autonomous systems. The method comprises following steps of: acquiring a path optimization function of an agent; converting, based on fixed-point theorems, the path optimization function of the agent into an equivalent fixed-point equation; acquiring a complete simplex sequence based on the fixed-point equation; and, determining, based on the complete simplex sequence, an initial population size and an initial position of particles for particle swarm optimization to obtain the best path planning of the agent. In the present invention, the extremal optimization of the path optimization function of the agent is converted into solving of the fixed-point equations, and initial parameters for particle swarm optimization are determined by the complete simplex sequence.Type: GrantFiled: March 18, 2020Date of Patent: July 20, 2021Assignee: Hefei University of TechnologyInventors: Minglun Ren, Xiaodi Huang, Chenze Wang, Bayi Cheng
-
Patent number: 11059936Abstract: The present invention discloses an organofluorine modified epoxy resin for increasing the surface flashover voltage, and preparation methods and applications thereof. In the present invention, the organofluorine modified epoxy resin is prepared from bisphenol A epoxy resin and hexafluorobisphenol A as raw materials in a mild environment in the presence of tri-(dimethylaminomethyl)phenol as a catalyst. Due to the reasonable proportion of the raw materials, the performance of the resin is optimized, the process is simple, and it is easy to realize industrial production. By using the modified resin as a matrix and adding a curing agent, a filler and an accelerant, a modified resin composite is prepared. In the present invention, a —CF3 group is introduced in the epoxy resin without changing the surface state of the epoxy composite insulating material, the volume/surface resistivity of the material is reduced, it is less likely to accumulate charges on the material surface.Type: GrantFiled: October 30, 2019Date of Patent: July 13, 2021Assignee: Hefei University of TechnologyInventors: Yushun Zhao, Kerong Yang, Jinhui Bai, Xuepei Wang, Yuanhan He
-
Patent number: 11062796Abstract: The present invention discloses a multimode mobile electronic medical record system and a working method thereof. The multimode mobile electronic medical record system comprises a plurality of mobile terminals, service server, push server, authentication server and cloud server. The mobile terminal comprises a medical record information collection module, a medical record generation module, a medical record synchronization module, a medical record parsing module and a medical record showing module. The service server comprises a medical record storage module and a medical record exchange module. The push server comprises a medical record push module. The authentication server comprises a medical record safety control module. The multimode mobile electronic medical record system can meet collection, integration and transfer of multimode electronic medical record information in a mobile medical environment, and can efficiently improve efficiency and convenience of mobile medical services.Type: GrantFiled: November 3, 2017Date of Patent: July 13, 2021Assignee: Hefei University of TechnologyInventors: Shuai Ding, Shanlin Yang, Wenjuan Fan, Feng Niu, Zeyuan Wang, Ling Li, Zijie Yue
-
Publication number: 20210122835Abstract: The present application discloses dual-function starch-based composite nanoparticles as well as a preparation method and application thereof. The preparation method comprises: hydrolyzing starch to form linear dextrin, grading the linear dextrin by using an alcohol-alcohol gradient precipitation method to obtain linear dextrin having homogeneous molecular weight distribution; oxidizing the linear dextrin by adopting an oxidation system to obtain oxidized dextrin; carrying out complex reaction on the oxidized dextrin and curcumin to form an oxidized dextrin-curcumin complex; and forming an oxidized dextrin-curcumin/chitosan hydrochloride composite nanoparticles from the oxidized dextrin-curcumin complex and chitosan hydrochloride. The aqueous phase solution of the dual-function starch-based composite nanoparticles containing gel polysaccharide is uniformly mixed with primary emulsion, calcium ion induction is carried out on the obtained double emulsion to obtain double-emulsion gel.Type: ApplicationFiled: January 13, 2020Publication date: April 29, 2021Applicant: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Bao ZHANG, Baocai XU, Xiaomin LI, Peijun LI, Yi PAN, Ran MENG, Xiaolong LI, Wenjie LIU
-
Publication number: 20210114385Abstract: The present invention discloses a method for making an easy-to-view computed tomography (CT) sheet. The method is implemented by the following modules, including an X-ray tomographic scanning device, a computer system, an operating system, and a printing system. The X-ray tomographic scanning device is composed of an X-ray generator, an X-ray tube, and an X-ray detector. The X-ray generator of the X-ray tomographic scanning device is used for X-ray generation. Through increasing detection accuracy of the detector inside the scanning device, radiation dose can be effectively reduced, thereby avoiding large radiation hazards to a patient during scanning. In this way, image quality is improved without increasing the radiation dose or even when the radiation dose is reduced. In addition, a processing method for image reconstruction is further improved under joint action of multiple groups of X-rays, thereby further improving data generation.Type: ApplicationFiled: October 20, 2020Publication date: April 22, 2021Applicant: Hefei University of TechnologyInventors: Xiaojia Wang, Kuo Du, Keyu Zhu, Sheng Xu
-
Patent number: 10961064Abstract: A grain storehouse includes a granary, a grain loading system, and a grain unloading system. The granary includes multiple storages arranged in a network format. The bottom of each storage is a tapered structure with a tapered surface downward, and the bottom of the tapered structure provides a switchable blanking exit. The grain loading system includes a lattice girder structure, a plurality of conveyors and multiple hoppers. The grain unloading system includes at least one conveyor that is located under the blanking exit. The present invention improves the automaticity and efficiency of grain loading and unloading of the grain storehouse, so that the grain can be transferred quickly.Type: GrantFiled: November 25, 2019Date of Patent: March 30, 2021Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Xinyu Li, Shouxu Song, Zunyou Yao
-
Patent number: 10940845Abstract: The present invention discloses a motor-magnetostrictive actuator hybrid brake-by-wire system. The system includes a motor, a transmission mechanism, a magnetostrictive-driving piston mechanism and a floating-caliper disc mechanism. The transmission mechanism includes a planetary gear set and a screw set, and is driven by the motor. The linear motion of the sleeve is achieved by the planetary gear set and screw set. The sleeve pushes forward the piston head of the magnetostrictive-driving piston mechanism and the piston head pushes forward the brake pad back plate of the floating-caliper disc mechanism to clamp the brake disc, which accomplishes braking.Type: GrantFiled: July 20, 2017Date of Patent: March 9, 2021Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Xianxu Bai, Yang Li, Feilong Cai, Zhiyuan Si, Lijun Qian
-
Patent number: 10881569Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.Type: GrantFiled: August 30, 2018Date of Patent: January 5, 2021Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Ning An, Xia Que, Jiaoyun Yang, Ping Zhao
-
Patent number: 10874568Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.Type: GrantFiled: August 30, 2018Date of Patent: December 29, 2020Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Jiaoyun Yang, Ping Zhao, Aiguo Wang, Ning An
-
Patent number: 10876869Abstract: A segmented Kalman filter based anti-transient-impact-vibration-interference signal processing method and system for a vortex flowmeter with a microcontroller as a core are provided, which relate to a flow rate measurement field. The method includes: (1) seeking for data segments containing transient impact vibration interferences, (2) configuring a Kalman filter, (3) implementing Kalman filtering in segments, (4) analyzing frequency domain amplitude spectrum. A vortex flow signal is predicted and estimated by the Kalman filter to achieve an objective of reducing powers and proportions of transient impact vibration interferences. Even when multiple transient impact interference components exist, and powers of these interferences are larger than the power of the vortex flow signal, the interferences can still be eliminated to correctly extract a frequency of the vortex flow signal, as well as ensuring measurement accuracy of the vortex flowmeter under complicated working process.Type: GrantFiled: April 18, 2018Date of Patent: December 29, 2020Assignee: HEFEI UNIVERSITY OF TECHNOLOGYInventors: Kejun Xu, Chunli Shao, Zhangping Shu
-
Online fault detection device installed in train car and used for high-speed train running component
Patent number: 10866162Abstract: Provided in the present disclosure is an online fault detection device installed in a train car and used for a high-speed train running component comprising a GPS module (1), a noise sensor (2), a 3G module (5), a solid-state drive (6), a microprocessor (4), a status indicator (3), and a buzzer (7). Input ends of the microprocessor (4) are connected to an output end of the GPS module (1) and an output end of the noise sensor (2) respectively. Output ends of the microprocessor (4) are connected to an input end of the status indicator (3) and an input end of the buzzer (7) respectively. The microprocessor (4) is interactively connected to the 3G module (5) and the solid-state drive (6) respectively. The device above is reliable and easy to be installed and maintained; and the components and sensor thereof are not prone to be damaged.Type: GrantFiled: March 1, 2017Date of Patent: December 15, 2020Assignees: HEFEI GOCOM INFORMATION & TECHNOLOGY CO., LTD., HEFEI UNIVERSITY OF TECHNOLOGYInventors: Zhen Wei, Jian Chen, Lei Cheng, Qingxin Hu, Jiazhu Li, Pin Chen, Yunan Cheng -
Patent number: 10836231Abstract: The present invention discloses an automatic adjustment device for a front suspension of a driverless formula racing car, comprising: a vertical column, an upper fork arm, a lower fork arm, a strength adjuster, a push rod, a rocking block and a shock absorber. By arranging the strength adjuster between the upper fork arm and the lower fork arm, and by adjusting the degree of tightness between the upper fork arm and the lower fork arm, the present invention can automatically adjust the tensile and support strength of the strength adjuster according to different car conditions and road conditions in which the racing car runs, to guarantee the structure stability of the front suspension in the running process, and prevent the front suspension from being loosening or fracturing, thereby having good adaptability and stability to structural deformation.Type: GrantFiled: March 29, 2019Date of Patent: November 17, 2020Assignee: Hefei University of TechnologyInventors: Yongjia Wang, Bofu Wu, Shuhua Li, He Huang, Wuhua Jiang, Ruifeng Li, Jingting Yang, Junzhao Yu