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211.发明申请公开(公告)号：US20210194375A1
公开(公告)日：2021-06-24
申请号：US16617508
申请日：2018-09-28
Applicant: SOUTHEAST UNIVERSITY
Inventor： Qinsong QIAN , Shengyou XU , Qi LIU , Weifeng SUN , Shengli LU , Longxing SHI
Abstract: The invention discloses a self-adaptive synchronous rectification control system and a self-adaptive synchronous rectification control method of an active clamp flyback converter. The control system comprises a sampling and signal processing circuit, a control circuit with a microcontroller as a core and a gate driver. According to the control method, a switching-on state, an early switching-off state, a late switching-off state and an exact switching-off state of a secondary synchronous rectifier of the active clamp flyback converter can be directly detected, and the synchronous rectifier and a switching-on time of the synchronous rectifier in next cycle can be controlled according to a detection result. After several cycles of self-adaptive control, the synchronous rectifier enters the exact switching-on state, thus avoiding oscillation of an output waveform of the active clamp flyback converter.
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212.发明申请公开(公告)号：US20210191344A1
公开(公告)日：2021-06-24
申请号：US17253558
申请日：2019-07-08
Applicant: SOUTHEAST UNIVERSITY
Inventor： Jun YANG , Xiangyang LIU , Jianliang MAO , Shihua LI
Abstract: The present invention provides a generalized proportional integral observer-based method for compensating for visual-measurement time lag of an electro-optical tracking system. For visual-measurement time lag present in an electro-optical tracking system, an improved generalized proportional integral observer-based feedback control method is used to mitigate the impact of the measurement time lag on the system and suppress kinematic uncertainty of the system. The core of the method lies in that an observer is used to estimate a state, uncertainty, and a difference of the system at a previous moment, a state and uncertainty of the system at a current moment are then calculated by using these estimated values and a state-space model of the system, and a control input of the system is finally acquired according to the estimated values of the state and uncertainty of the system at the current moment. The method mitigates the adverse impact of visual-measurement time lag on the system and enhances the uncertainty suppression and the tracking precision of the system.
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公开(公告)号：US11043861B2
公开(公告)日：2021-06-22
申请号：US16345734
申请日：2016-11-11
Applicant: SOUTHEAST UNIVERSITY
Inventor： Wei Hua , Hengliang Zhang , Ming Cheng
Abstract: A magnetic flux switching hub motor having a permanent magnet rotor, includes: a wheel rim, a stator core, an armature winding which is wound on the stator core, and a plurality of rotor units, wherein rotor units are fixed inside the wheel rim, and a rotor unit comprises a permanent magnet and rotor cores which are arranged on two sides of the permanent magnet, the magnetization direction of the permanent magnet being tangential magnetization, and a magnetization direction of each permanent magnet being the same. The motor has the advantages of being high power, and having strong saturation and overload resistance, high reluctance torque, good flux-weakening performance, a broad speed regulation range, a high degree of manufacturing integration, suitability for modular manufacturing processes, and the like.
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公开(公告)号：US20210123940A1
公开(公告)日：2021-04-29
申请号：US17054133
申请日：2019-11-26
Applicant: SOUTHEAST UNIVERSITY
Inventor： Zhenxiang YI , Yu WANG , Wenjun DENG , Lifeng WANG , Ming QIN , Qingan HUANG
IPC: G01P5/08
Abstract: Disclosed is a wind speed sensor based on a flexible inductor and a silicon-based inductor, which relates to a MEMS device and belongs to the field of measurement and testing technologies. The wind speed sensor is a double-layer inductor structure composed of a flexible inductor and a silicon-based inductor. A metal layer of the flexible inductor and a metal layer of the silicon-based inductor face to each other and form, between them, an air cavity sufficient for mutual induction of electromotance. A contact block constituting a measuring port is deposited in the metal layer of the silicon-based inductor. The present invention has a light structure, and implements wind speed detection based on the Bernoulli effect and the coil mutual inductance effect.
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公开(公告)号：US10982861B2
公开(公告)日：2021-04-20
申请号：US16107958
申请日：2018-08-21
Applicant: SOUTHEAST UNIVERSITY
Inventor： Wei Gu , Chenyu Wu , Zhi Wu , Suyang Zhou , Ping Jiang
Abstract: A CHP optimal dispatching model is a mixed integer programming model and is used for a district heating system (DHS) comprising a heat source, a heating network and a heat load, and the heating network comprises a heat transmission network and a heat distribution network. A plurality of heating areas is divided, and one day is divided into a plurality of time periods; the heat transmission loss of the heat distribution network is omitted, and a heat transmission network model taking transmission time delay of the heating network into consideration is established according to the heat transmission network; a terminal heat consumer model capable of reflecting indoor temperature is established; and a combined optimal dispatching model comprising conventional generators, wind power units, CHP units, electric boilers and heat storage tanks is established.
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Patent Agency Ranking
公开(公告)号：US20210093816A1
公开(公告)日：2021-04-01
申请号：US17086544
申请日：2020-11-02
Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. , ZHONGDA HOSPITAL SOUTHEAST UNIVERSITY
Inventor： Ling LIU , Jinglei LIU , Yi YANG , Xiaoyong ZHOU , Chun PAN , Yongsheng YAN , Jianfeng XIE , Songqiao LIU , Haibo QIU
IPC: A61M16/00
Abstract: The disclosure provides a respirator, which includes a ventilation device, configured for providing ventilation airflow to a patient. The respirator further includes a first monitor, configured for monitoring a pressure or a flow velocity with which the ventilation device ventilates the patient, and a second monitor, configured for measuring a pressure change that reflects a self-respiratory effort of the patient. The respirator also includes a processor, configured for identifying an inspiratory trigger moment or an expiratory trigger moment of the patient according to the pressure change that reflects the self-respiratory effort of the patient.
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217.发明申请公开(公告)号：US20210071122A1
公开(公告)日：2021-03-11
申请号：US16960239
申请日：2018-04-04
Applicant: SOUTHEAST UNIVERSITY
Inventor： Zhen ZHU , Qiaodan LI , Dingxin JIN , Feng YU , Yangye GENG
Abstract: A microfluidic chip for culturing and real-time monitoring of multicellular tissues and use method thereof. The chip comprises a glass substrate layer, and a PDMS microchannel layer located on the glass substrate layer, wherein the glass substrate layer comprises a glass substrate, and a plurality of microelectrodes thereon; the PDMS microchannel comprises a plurality of independent microfluidic channels; the microelectrodes on the glass substrate are in one-to-one correspondence with the microfluidic channels in the PDMS microchannel layer; and the microelectrodes are electrically connected to an external circuit. The use method comprises: cell capture, cell or tissue culture, electrical impedance spectroscopy detection, and tissue release.
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公开(公告)号：US20210056468A1
公开(公告)日：2021-02-25
申请号：US17043715
申请日：2019-03-12
Applicant: Southeast University
Inventor： Peng CAO , Bingqian XU , Jingjing GUO , Mengxiao LI , Jun YANG
Abstract: A method for predicting the fluctuation of circuit path delay on the basis of machine learning, comprising the following steps: S1: selecting suitable sample characteristics by means of analyzing the relationship between circuit characteristics and path delay; S2: generating a random path by means of enumerating values of randomized parameters, acquiring the maximum path delay by means of performing Monte Carlo simulation on the random path, selecting a reliable path by means of the 3σ standard, and using the sample characteristics and path delay of the reliable path as a sample set (D); S3: establishing a path delay prediction model, and adjusting parameters of the model; S4: verifying the precision and stability of the path delay prediction model; S5: obtaining the path delay. The method for predicting the fluctuation of circuit path delay on the basis of machine learning has the advantages of high precision and low running time, thereby having remarkable advantages in the accuracy and efficiency of timing analysis.
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公开(公告)号：US20200343810A1
公开(公告)日：2020-10-29
申请号：US16959015
申请日：2018-12-29
Applicant: CSMC TECHNOLOGIES FAB2 CO., LTD. , SOUTHEAST UNIVERSITY
Inventor： Shen XU , Minggang CHEN , Hao WANG , Jinyu XIAO , Wei SU , Weifeng SUN , Longxing SHI
Abstract: An automatic dead zone time optimization system in a primary-side regulation flyback power supply CCM mode, comprising a closed loop formed by a control system, consisting of a single output DAC midpoint sampling module, a digital control module, a current detection module, a dead zone time calculation module and a PWM driving module, and a controlled synchronous rectification primary-side regulation flyback converter. By means of a DAC Sampling mechanism, a primary-side current is sampled to calculate a secondary-side average current, so as to obtain a primary-side average current Imid_p and a secondary-side average current Is(tmid) in the case of CCM; a secondary-side current is input into the dead zone time calculation module to obtain a reasonable dead zone time td; and finally, the PWM driving module is jointly controlled by a primary-side regulation loop and the obtained dead zone time td.
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公开(公告)号：US20200342295A1
公开(公告)日：2020-10-29
申请号：US16757421
申请日：2019-01-24
Applicant: Southeast University
Inventor： Bo LIU , Yu GONG , Wei GE , Jun YANG , Longxing SHI
Abstract: The present invention relates to the field of analog integrated circuits, and provides a multiply-accumulate calculation method and circuit suitable for a neural network, which realizes large-scale multiply-accumulate calculation of the neural network with low power consumption and high speed. The multiply-accumulate calculation circuit comprises a multiplication calculation circuit array and an accumulation calculation circuit. The multiplication calculation circuit array is composed of M groups of multiplication calculation circuits. Each group of multiplication calculation circuits is composed of one multiplication array unit and eight selection-shift units. The order of the multiplication array unit is quantized in real time by using on-chip training to provide a shared input for the selection-shift units, achieving increased operating rate and reduced power consumption. The accumulation calculation circuit is composed of a delay accumulation circuit, a TDC conversion circuit, and a shift-addition circuit in series. The delay accumulation circuit comprises eight controllable delay chains for dynamically controlling the number of iterations and accumulating data multiple times in a time domain, so as to meet the difference in calculation scale of different network layers, save hardware storage space, reduce calculation complexity, and reduce data scheduling.
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