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    • 72. 发明授权
    • Sensorless induction motor control
    • 无传感器感应电机控制
    • US06756763B2
    • 2004-06-29
    • US10137594
    • 2002-05-02
    • Gurinder Singh KahlonNing LiuRobert Joseph MohanRichard Eric Luken
    • Gurinder Singh KahlonNing LiuRobert Joseph MohanRichard Eric Luken
    • H02P142
    • H02P23/14H02P23/0004H02P27/047
    • A method for controlling an induction motor using an equivalent circuit model, the equivalent circuit having a real component and an imaginary component, is disclosed. The method instead of measuring a plurality of induction motor parameters, the real and the imaginary component of the induction motor impedance are calculated based on the measured phase currents and voltages. The invention calculates a first control function based on the real component of the induction motor impedance, and a second control function based on the imaginary component of the induction motor impedance, and adjusts the induction motor excitation frequency until the first control function is approximately equal to the second control function. After the excitation frequency is determined, the motor torque is calculated by taking the square of motor voltage in the d-q reference frame. Working with a few control parameters, the present invention achieves a desired maximum torque or a desired peak efficiency with a high tolerance of variation in the control parameters.
    • 公开了一种使用等效电路模型来控制感应电机的方法,该等效电路具有实部和虚部。 该方法代替测量多个感应电动机参数,基于所测量的相电流和电压来计算感应电动机阻抗的实部和虚部。 本发明基于感应电动机阻抗的实际分量和基于感应电动机阻抗的虚分量的第二控制功能来计算第一控制功能,并且调整感应电动机的激励频率,直到第一控制功能近似等于 第二个控制功能。 在确定激励频率后,通过在d-q参考系中取电动机电压的平方来计算电动机转矩。 使用几个控制参数,本发明通过控制参数的变化的高公差来实现期望的最大扭矩或期望的峰值效率。
    • 77. 发明授权
    • Data centre system and method for a data centre to provide service
    • 数据中心系统和方法为数据中心提供服务
    • US08966050B2
    • 2015-02-24
    • US14346653
    • 2012-07-17
    • Jiaoren WuTao LiuNing LiuCheng ZhangJiang Fu
    • Jiaoren WuTao LiuNing LiuCheng ZhangJiang Fu
    • G06F15/173H04L12/803H04L29/08H04L29/06
    • H04L47/125H04L29/06H04L61/1511H04L61/251H04L61/2528H04L61/6086H04L67/1002H04L67/1023
    • A data center system and a method for a data center to provide service are provided. The data center system comprises at least one first load balancing device, a plurality of second load balancing devices, and a plurality of servers. The first load balancing device is configured to transmit the first type network request to one of the plurality of second load balancing devices with a first scheduling strategy. The second load balancing device is configured to convert the first type network request to a second type network request, and to transmit the second type network request after the source address and destination address translation to one of the plurality of servers with a second scheduling strategy. The server is configured to generate a second type network response according to the second type network request and to return the second type network response to a corresponding second load balancing device.
    • 提供数据中心系统和数据中心提供服务的方法。 数据中心系统包括至少一个第一负载平衡装置,多个第二负载平衡装置和多个服务器。 第一负载平衡装置被配置为以第一调度策略将第一类型网络请求发送到多个第二负载平衡装置之一。 第二负载平衡装置被配置为将第一类型网络请求转换为第二类型网络请求,并且在源地址和目的地地址转换之后,以第二调度策略向多个服务器之一发送第二类型网络请求。 服务器被配置为根据第二类型网络请求生成第二类型网络响应,并且将第二类型网络响应返回到对应的第二负载平衡设备。
    • 78. 发明授权
    • Three-dimensional (3D) image processing method and system
    • 三维(3D)图像处理方法和系统
    • US08553043B2
    • 2013-10-08
    • US12905108
    • 2010-10-15
    • Fei YanNing Liu
    • Fei YanNing Liu
    • G06T9/00G06K9/20G06K9/36H04N13/00
    • H04N13/161
    • A three-dimensional (3D) image processing method is provided. The method includes receiving from an image source a 3D image containing a plurality of images that are previously compressed, and storing pixel data of the received plurality of images. The method also includes determining that the plurality of images do not have a same number of pixel columns, determining at least one boundaries among the plurality of images, and determining a minimum number of pixel columns and a maximum number of pixel columns of the plurality of images. Further, the method includes adjusting any one of the plurality of images having a column number less than the maximum number such that each of the plurality of images has the maximum number of pixel columns, decompressing the plurality of images, and discarding from each of the decompressed plurality of images by a determined number of last columns, wherein the determined number is the difference between the maximum number and the minimum number.
    • 提供三维(3D)图像处理方法。 该方法包括从图像源接收包含预先压缩的多个图像的3D图像,以及存储所接收的多个图像的像素数据。 该方法还包括确定多个图像不具有相同数量的像素列,确定多个图像中的至少一个边界,以及确定多个图像中的像素列的最小数目和最大像素列数 图片。 此外,该方法包括调整具有小于最大数目的列数的多个图像中的任何一个,使得多个图像中的每一个具有最大数量的像素列,解压缩多个图像,并且从 通过确定数量的最后列解压缩多个图像,其中确定的数量是最大数量和最小数量之间的差。
    • 79. 发明申请
    • Million channel-class digital seismometer based on computer network
    • 基于计算机网络的百万通道级数字地震仪
    • US20130188455A1
    • 2013-07-25
    • US13877613
    • 2012-06-15
    • Jian GuoGuangding LiuShanhui XuNing Liu
    • Jian GuoGuangding LiuShanhui XuNing Liu
    • G01V1/22G01V1/18
    • G01V1/22G01V1/18
    • A million channel-class digital seismometer based on a computer network, the hardware thereof consisting of seven major units: a central control operating system (CCOS), a root unit (RU), a network unit (NU), a power unit (PU), an acquisition link (AS), a fiber line (FL), and a network line (NL); wherein the CCOS is a control center and a data retrieving center for the entire instrument, the RU is a connection interface between the COOS and a field device; a plurality of NUs are serially connected via the FL to form a network unit link NUS, and the RU is connected to one or more NUS; the PU and the AS are randomly and serially connected to form an acquisition line (AL), and any PU on the AL is connected to the NU via a 100-Mbit/s NL.
    • 一种基于计算机网络的百万级数字地震仪,其硬件由七个主要单元组成:中央控制操作系统(CCOS),根单元(RU),网络单元(NU),电源单元 ),采集链路(AS),光纤线路(FL)和网络线路(NL); 其中CCOS是用于整个仪器的控制中心和数据检索中心,RU是COOS和现场设备之间的连接接口; 多个NU通过FL串行连接以形成网络单元链路NUS,RU连接到一个或多个NUS; PU和AS随机和串行连接以形成采集线(AL),并且AL上的任何PU通过100Mbit / s NL连接到NU。
    • 80. 发明授权
    • Three-dimensional (3D) image processing method and system
    • 三维(3D)图像处理方法和系统
    • US08494253B2
    • 2013-07-23
    • US12892028
    • 2010-09-28
    • Fei YanNing LiuTongfu LiYakui Li
    • Fei YanNing LiuTongfu LiYakui Li
    • G06K9/36
    • H04N19/597H04N13/161H04N13/167
    • A three-dimensional (3D) image processing method is provided. The method includes receiving from an image source a 3D image containing compressed first image pixel data and compressed second image pixel data, and storing the received compressed first image pixel data and compressed second image pixel data in a line register group. The method also includes determining a relationship between lines of the compressed first image pixel data and compressed second image pixel data, and using reading and writing operations on the line register group based on the relationship and a predetermined timing sequence to decompress the compressed first image pixel data and compressed second image pixel data.
    • 提供三维(3D)图像处理方法。 该方法包括从图像源接收包含压缩的第一图像像素数据和压缩的第二图像像素数据的3D图像,并将接收到的压缩的第一图像像素数据和压缩的第二图像像素数据存储在行寄存器组中。 该方法还包括确定压缩的第一图像像素数据和压缩的第二图像像素数据的行之间的关系,以及基于该关系和预定的定时顺序对行寄存器组的读和写操作来解压缩压缩的第一图像像素 数据和压缩的第二图像像素数据。