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1. 发明申请

WO2015109592A1 METHOD FOR ESTIMATING LI-ION BATTERY CAPACITY DEGRADATION 审中-公开
标题翻译：估算锂离子电池容量降低的方法
公开(公告)号：WO2015109592A1
公开(公告)日：2015-07-30
申请号：PCT/CN2014/071546
申请日：2014-01-27
申请人： BEIHANG UNIVERSITY
发明人： LV, Chen , TAO, Laifa , LI, Tieying , CHENG, Yujie , GAN, Zuwang
IPC分类号： G01R31/36
CPC分类号： G01R31/3679 , G01R31/3651
摘要： A method for estimating Li-ion battery capacity degradation, comprises: Step I: extracting geometrical features of a reference battery and an estimated battery under different operating conditions; Step II: establishing the intrinsic manifold with the geometrical features extracted in Step I about the reference battery and the estimated battery as inputs respectively, based on the Laplacian Eigenmap (LE) method; and Step III: achieving geometrical metric and estimation of battery capacity with a geodesic on the intrinsic manifold established in Step II about the reference battery and the estimated battery. As can be seen the present capacity estimation method of Li-ion battery is completely based on geometrical features and approaches.
摘要翻译：一种用于估计锂离子电池容量劣化的方法，包括：步骤I：在不同的操作条件下提取参考电池和估计的电池的几何特征; 步骤II：基于拉普拉斯特征图（LE）方法，分别在步骤I中提取的关于参考电池和估计电池作为输入的几何特征建立本征歧管; 和步骤III：使用在步骤II中建立的固有歧管上的测地线对参考电池和估计的电池实现电池容量的几何度量和估计。可以看出，锂离子电池的当前容量估计方法完全基于几何特征和方法。

2. 发明申请

WO2017032255A1 SYSTEM AND METHOD FOR DATA DECODING 审中-公开
标题翻译：用于数据解码的系统和方法
公开(公告)号：WO2017032255A1
公开(公告)日：2017-03-02
申请号：PCT/CN2016/095699
申请日：2016-08-17
申请人： BEIHANG UNIVERSITY
发明人： HUANG, Qin , WANG, Zulin
IPC分类号： H03M13/41
CPC分类号： H03M13/41 , H03M13/4107 , H03M13/4138 , H03M13/4146 , H03M13/658
摘要： The present disclosure relates to a system and method for decoding a data sequence. The system and method include retrieving a sequence of L bits and determining a maximum likelihood path thereof. Further, a trimming SOVA with a trimming factor M is used to select a maximum number of L/M metric differences to be calculated, and reliability values relating to the sequence are calculated based on the selected metric differences.
摘要翻译：本公开涉及一种用于对数据序列进行解码的系统和方法。该系统和方法包括检索L比特序列并确定其最大似然路径。此外，使用具有修整因子M的修整SOVA来选择要计算的最大数量的L / M度量差异，并且基于所选择的度量差异来计算与该序列相关的可靠性值。

3. 发明申请

WO2013026412A1 SURGICAL ROBOT WITH HYBRID PASSIVE/ACTIVE CONTROL 审中-公开
标题翻译：具有混合被动/主动控制的手术机器人
公开(公告)号：WO2013026412A1
公开(公告)日：2013-02-28
申请号：PCT/CN2012/080579
申请日：2012-08-24
申请人： THE CHINESE UNIVERSITY OF HONG KONG , LEUNG, Kwok-Sui , KUANG, Shao-long , WANG, Yu , CHUI, Chun-Sing , CHEUNG, Wing-Hoi , TSANG, Pak-Leung , NG, Wai-Kin , BEIHANG UNIVERSITY
发明人： LEUNG, Kwok-Sui , KUANG, Shao-long , WANG, Yu , CHUI, Chun-Sing , CHEUNG, Wing-Hoi , TSANG, Pak-Leung , NG, Wai-Kin
IPC分类号： A61B17/00 , B25J7/00
CPC分类号： B25J9/1689 , A61B34/30 , A61B2034/305 , B25J9/06 , B25J18/005 , B25J19/0004 , G05B2219/39212 , G05B2219/39439 , G05B2219/40415 , Y10S901/23 , Y10S901/28 , Y10T74/20317
摘要： A surgical robot with hybrid passive/active control comprises a base (11,12,13) and a tool holder (35) joined by a plurality of linking members (14,25,28,34).Each pair of said linking members are joined by a joint for a total of seven joints, which comprise at least one arc-shaped sliding joint (17) and five motor-driven revolute joints (21,24,26,2933). Each of said revolute joints is independently operable by both an automated system and a manual override,with means for selecting between said automated operation and said manual override. The robot can shorten the operating time and also ensure the precision and accuracy of the surgical operation.
摘要翻译：具有混合被动/主动控制的手术机器人包括由多个连接构件（14,25,28,34）连接的基座（11,12,13）和工具架（35）。每对所述连接构件共有七个接头连接在一起，它们包括至少一个弧形滑动接头（17）和五个电机驱动的旋转接头（21,24,26,2933）。所述旋转接头中的每一个可独立地通过自动化系统和手动超控操作，具有用于在所述自动操作和所述手动超驰之间进行选择的装置。机器人可以缩短操作时间，并确保手术的精度和准确性。

4. 发明授权

US11386595B2 Method for reconstructing incomplete data of X-ray absorption contrast computed tomography based on deep learning 有权
公开(公告)号：US11386595B2
公开(公告)日：2022-07-12
申请号：US17031096
申请日：2020-09-24
申请人： Beihang University , Jiangxi Research Institute of Beihang University
发明人： Jian Fu , Jianbing Dong , Changsheng Zhang
IPC分类号： G01N23/00 , G06K9/00 , G06T11/00 , G01N23/046 , G01N23/083
摘要： The present invention discloses a method for reconstructing incomplete data of X-ray absorption contrast computed tomography (CT) based on deep learning (DL). The method includes the following steps: using a filtered back projection (FBP) algorithm to obtain an initial reconstructed image; forward projecting the initial reconstructed image to obtain artifact-contaminated complete projection sequences; using a DL technique to process the artifact-contaminated projection sequences to obtain artifact-free projection sequences; using the FBP algorithm to reconstruct the artifact-free projection sequences to obtain a final reconstructed image. Compared with the traditional incomplete data reconstruction methods, the examples of the present invention feature a simpler calculation process, fewer parameters to be manually set, a faster calculation speed and higher image quality.

5. 发明授权

US11151439B2 Computing in-memory system and method based on skyrmion racetrack memory 有权
公开(公告)号：US11151439B2
公开(公告)日：2021-10-19
申请号：US17043677
申请日：2019-04-25
申请人： HEFEI INNOVATION RESEARCH INSTITUTE, BEIHANG UNIVERSITY , BEIHANG UNIVERSITY
发明人： Peng Ouyang , Yu Pan , Youguang Zhang , Weisheng Zhao
IPC分类号： G06N3/04 , G11C11/16
摘要： A computing in-memory system and computing in-memory method based on a skyrmion race memory are provided. The system comprises a circuit architecture of SRM-CIM. The circuit architecture of the SRM-CIM comprises a row decoder, a column decoder, a voltage-driven, a storage array, a modified sensor circuit, a counter Bit-counter and a mode controller. The voltage-driven includes two NMOSs, and the two NMOSs are respectively connected with a selector MUX. The modified sensor circuit compares the resistance between a first node to a second node and a third node to a fourth node by using a pre-charge sense amplifier. The storage array is composed of the skyrmion racetrack memories. The computing in-memory architecture is designed by utilizing the skyrmion racetrack memory, so that storage is realized in the memory, and computing operation can be carried out in the memory.

6. 发明授权

EP3244522B1 ULTRASONIC-FREQUENCY PULSED GMAW WELDING POWER SOURCE DEVICE 有权
公开(公告)号：EP3244522B1
公开(公告)日：2019-02-20
申请号：EP17170042.0
申请日：2017-05-09
申请人： Beihang University
发明人： QI, Bojin , WANG, Qiang , CONG, Baoqiang , ZHANG, Wei
IPC分类号： H02M1/34 , B23K9/09 , H02M3/142

7. 发明公开

EP3273069A1 SMART LOAD-SENSITIVE ELECTRO-HYDROSTATIC ACTUATOR 有权
标题翻译：智能负载敏感型电动液压驱动器
公开(公告)号：EP3273069A1
公开(公告)日：2018-01-24
申请号：EP16764219.8
申请日：2016-03-12
申请人： Beihang University
发明人： JIAO, Zongxia , SONG, Zengning , SHANG, Yaoxing , WU, Shuai , HAO, Weiyi
IPC分类号： F15B11/16 , F15B21/00 , F16D31/02
CPC分类号： F15B13/0446 , F15B7/006 , F15B11/08 , F15B13/028 , F15B13/0417 , F15B2211/20515 , F15B2211/20546 , F15B2211/20553 , F15B2211/20561 , F15B2211/27 , F15B2211/275 , F15B2211/6651 , F15B2211/7052 , F15B2211/7054 , F16D48/02 , F16D2048/0248
摘要： The present invention relates to an intelligent load-sensing EHA comprising a variable displacement hydraulic pump, a symmetrical hydraulic cylinder, a feedback module, a pressure-following valve and an execution mechanism. The symmetrical hydraulic cylinder includes a symmetrical plunger, a first cylinder and a second cylinder separated by the plunger. The variable displacement hydraulic pump includes an oil inlet and an oil outlet. An output of the feedback module is used to output a greater one of the pressures at the first input and the second input to the execution mechanism. The pressure-following valve is connected between the output of the feedback module and an input end of the execution mechanism to reduce an instantaneous flow input to the input end of the execution mechanism and adjust the pressure at the input end of the execution mechanism. The execution mechanism is used to receive an output of the feedback module and generate a signal for changing a displacement of the variable displacement hydraulic pump. Thanks to the intelligent load-sensing EHA of the present invention, the displacement of the variable displacement hydraulic pump can be adjusted quantitatively by controlling an output pressure of the pressure-following valve to reduce radiation and energy consumption of the entire system.
摘要翻译：本发明涉及一种包括可变排量液压泵，对称液压缸，反馈模块，压力跟随阀和执行机构的智能负载感测EHA。对称液压缸包括对称柱塞，由柱塞分开的第一缸和第二缸。可变排量液压泵包括进油口和出油口。反馈模块的输出用于向执行机构输出第一输入和第二输入中较大的一个压力。压力跟随阀连接在反馈模块的输出端和执行机构的输入端之间，以减少输入到执行机构输入端的瞬时流量并调节执行机构输入端的压力。执行机构用于接收反馈模块的输出并产生用于改变可变排量液压泵的排量的信号。由于本发明的智能负载传感EHA，通过控制压力跟随阀的输出压力以减少整个系统的辐射和能量消耗，可以定量调节可变排量液压泵的排量。

8. 发明公开

EP2658167A1 TRANSMISSION CONTROL METHOD OF VIDEO-STREAM BASED ON DUAL TIME SCALE 审中-公开
标题翻译： ÜBERTRAGUNGSSTEUERUNGSVERFAHRENFÜRVIDEO-STREAMS AUF BASIS EINER DOPPELTEN ZEITSKALA
公开(公告)号：EP2658167A1
公开(公告)日：2013-10-30
申请号：EP10858267.7
申请日：2010-12-16
申请人： Beihang University
发明人： LI, Bo , HU, Haimiao , WANG, Peng , XIAN, Shu
IPC分类号： H04L12/00
CPC分类号： H04N21/2662 , H04L47/38 , H04N21/23418 , H04N21/234354 , H04N21/2402 , H04N21/64769
摘要： A method for two time-scales video stream transmission control is proposed, which mainly includes the following three steps. Firstly, a model-based long time-scale bandwidth trend extraction step is proposed to calculate a current bandwidth through a Transmission Control Protocol (TCP) throughput model, and predict a trend of network bandwidth by using an Exponential Smooth Model (ESM) according to the calculated current bandwidth. Secondly, a short time-scale bandwidth fluctuation detection step is proposed to divide a network status into three categories: a light load, a full load, and a congestion load; and according to different network statuses, and adjust the estimated bandwidth in a stable increase/rapid decrease manner by changing an additive factor and a multiplicative factor dynamically. Thirdly, a target bit rate adjustment step based on two asymmetrical thresholds is proposed to set an up-threshold and a down-threshold of bandwidth to avoid frequently adjusting a target bit rate of an encoder and to ensure a smooth perceptual quality. The method for two time-scales video stream transmission control can satisfy the requirements of TCP-friendliness, real-time, and smoothness for the video transmission.
摘要翻译：提出了一种用于两个时间尺度视频流传输控制的方法，主要包括以下三个步骤。首先，提出了一种基于模型的长时间带宽趋势提取步骤，通过传输控制协议（TCP）吞吐量模型来计算当前带宽，并且通过使用指数平滑模型（ESM）来估计网络带宽的趋势，根据计算出的当前带宽。其次，提出了一个短时间尺度的带宽波动检测步骤，将网络状态分为三个类别：轻负载，满载和拥塞负载; 并根据不同的网络状态，通过动态改变加性因子和乘法因子，以稳定的增加/快速减少方式调整估计带宽。第三，提出了基于两个不对称阈值的目标比特率调整步骤来设置带宽的上限和下限，以避免频繁地调整编码器的目标比特率并确保平滑的感知质量。两种时间尺度视频流传输控制的方法可以满足视频传输的TCP友好性，实时性和平滑性要求。

9. 发明公开

EP3244522A1 ULTRASONIC-FREQUENCY PULSED GMAW WELDING POWER SOURCE DEVICE 有权
标题翻译：超声波频率脉冲GMAW焊接电源装置
公开(公告)号：EP3244522A1
公开(公告)日：2017-11-15
申请号：EP17170042.0
申请日：2017-05-09
申请人： Beihang University
发明人： QI, Bojin , WANG, Qiang , CONG, Baoqiang , ZHANG, Wei
IPC分类号： H02M1/34 , B23K9/09 , H02M3/142
CPC分类号： H02M3/142 , B23K9/092 , B23K9/093 , H02M1/34
摘要： The present disclosure provides an ultrasonic-frequency hybrid pulse GMAW welding power source device, including a constant voltage source for providing a constant voltage to a BUCK-type main circuit, the BUCK-type main circuit, a constant current source for providing a constant current to an ultrasonic-frequency pulse current switching circuit, and the ultrasonic-frequency pulse current switching circuit, where the constant voltage source is connected to the BUCK-type main circuit; the constant current source is connected to the ultrasonic-frequency pulse current switching circuit; the BUCK-type main circuit is in parallel connection to the ultrasonic-frequency pulse current switching circuit; the BUCK-type main circuit is used for providing a first output current for welding, which is in the form of a direct current or pulses; the ultrasonic-frequency pulse current switching circuit is used for providing a second output current for welding, which is an ultrasonic-frequency pulse current. The device superposes the ultrasonic-frequency pulse current and the current in the form of a direct current or pulses, to improve the performance of droplet transfer in the conventional direct-current or pulse GMAW, thereby concentrating arc energy, greatly improving arc stability, and reducing the influence of arc blow.
摘要翻译：本发明提供了一种超声频率混合脉冲GMAW焊接电源装置，包括用于向BUCK型主电路提供恒定电压的恒压源，BUCK型主电路，用于提供恒定电流的恒流源超声波频率脉冲电流切换电路和超声波频率脉冲电流切换电路，其中恒压源连接到BUCK型主电路; 恒流源连接超声频脉冲电流开关电路; BUCK型主电路与超声波脉冲电流切换电路并联， BUCK型主电路用于提供用于焊接的第一输出电流，其为直流或脉冲形式; 超声波频率脉冲电流切换电路用于提供用于焊接的第二输出电流，其是超声频率脉冲电流。该装置以直流或脉冲形式叠加超声频率脉冲电流和电流，以提高常规直流或脉冲GMAW中液滴传输的性能，从而集中电弧能量，极大地提高电弧稳定性，并且减少电弧放电的影响。

10. 发明公开

US20230179127A1 SENSORLESS COMMUTATION ERROR COMPENSATION SYSTEM AND METHOD FOR BRUSHLESS MOTOR 审中-公开
公开(公告)号：US20230179127A1
公开(公告)日：2023-06-08
申请号：US17995410
申请日：2020-07-22
申请人： Ningbo Institute of Technology, Beihang University , Beihang University
发明人： Gang Liu , Hao Jin , Shiqiang Zheng , Haitao Li , Tong Wen , Sha He
IPC分类号： H02P6/182 , H02P21/18
CPC分类号： H02P6/182 , H02P21/18
摘要： A sensorless commutation error compensation system for a brushless motor, comprises: a brushless motor (200) and a commutation logic module circuit (100). The commutation logic module circuit (100) is connected to three virtual Hall signal output ends of the brushless motor (200), and used for receiving three virtual Hall signals output by the brushless motor (200), obtaining three error compensation angle signals on the basis of the three virtual Hall signals, respectively superimposing the three error compensation angle signals and the three virtual Hall signals to form superposition results, and controlling the brushless motor (200) to adjust commutation timing on the basis of the superposition results, so as to achieve commutation error compensation. The system controls commutation errors on the basis of currents and counter-electromotive forces of three phases, instead of controlling the commutation errors on the basis of the current and the counter-electromotive force of one of the three phases, so that a torque ripple of a brushless direct-current motor can be reduced and a working efficiency of the motor can be improved.

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