PITCH CONTROL SYSTEM AND METHOD FOR WIND TURBINE
    1.
    发明申请
    PITCH CONTROL SYSTEM AND METHOD FOR WIND TURBINE 审中-公开
    风力发电机的倾斜控制系统和方法

    公开(公告)号:US20120193917A1

    公开(公告)日:2012-08-02

    申请号:US13355469

    申请日:2012-01-20

    申请人: XI CHEN Lei Li Xuan Cai

    发明人: XI CHEN Lei Li Xuan Cai

    IPC分类号: H02P9/04

    摘要: The invention discloses a pitch control system for a wind turbine and a method, comprising a main controller, a secondary controller, a motor and a pitch gearbox, wherein the main controller is connected with a plurality of the secondary controllers through a communication bus; each blade corresponds to one controller and at least two motors, and one pitch gearbox is driven by each motor. The main controller is used for calculating a pitch expected value according to wind speed as well as power and rotation speed of a generator; and the motor is driven by the secondary controller according to the pitch expected value, so as to drive the pitch gearbox and hence drive the blades to vary a pitch angle.

    摘要翻译: 本发明公开了一种风力发电机的变桨控制系统,包括主控制器,副控制器,电动机和变速齿轮箱,其中主控制器通过通信总线与多个次级控制器连接; 每个叶片对应于一个控制器和至少两个电动机,并且一个变速箱由每个电动机驱动。 主控制器用于根据风速以及发电机的功率和转速来计算音高预期值; 并且电动机根据俯仰期望值由次级控制器驱动,以便驱动变桨齿轮箱,从而驱动叶片来改变桨距角。

    INTERRUPT COALESCING SCHEME FOR HIGH THROUGHPUT TCP OFFLOAD ENGINE
    3.
    发明申请
    INTERRUPT COALESCING SCHEME FOR HIGH THROUGHPUT TCP OFFLOAD ENGINE 审中-公开
    用于高通量TCP卸载发动机的中断燃烧方案

    公开(公告)号:US20090022171A1

    公开(公告)日:2009-01-22

    申请号:US11780063

    申请日:2007-07-19

    IPC分类号: H04L12/56

    摘要: An interrupt coalescing scheme for high throughput TCP offload engine and method thereof are disclosed. An interrupt descriptor queue is used, that TCP offload engine saves TCP connection information and interrupt information in an interrupt event descriptor per interrupt. Meanwhile the software processes an interrupt by reading interrupt event descriptors asynchronously. The software may process multiple interrupt event descriptors in one interrupt context.

    摘要翻译: 公开了一种用于高吞吐量TCP卸载引擎的中断合并方案及其方法。 使用中断描述符队列,TCP卸载引擎将每个中断的TCP连接信息和中断信息保存在中断事件描述符中。 同时,软件通过异步读取中断事件描述符来处理中断。 软件可以在一个中断上下文中处理多个中断事件描述符。

    DEVICE-FREE SUBJECT LOCALIZATION METHODS AND SYSTEMS USING WIRELESS SIGNALS

    公开(公告)号:US20170311279A1

    公开(公告)日:2017-10-26

    申请号:US15493616

    申请日:2017-04-21

    摘要: Within several applications the ability to localize an individual within an environment is beneficial. However, existing indoor localization approaches depend upon at least one of two assumptions. First, the subject(s) localization is achieved by localizing a wireless device carried by the subject and second, wireless fingerprints are established for the localization via a site survey being performed before a system can actually localize the subject(s). However, in many application scenarios, neither of the above two assumptions are true, namely that the user is not carrying an active wireless device or that the site has been surveyed. Accordingly, embodiments of the invention provide for subject localization by a dynamic calibration of wireless signals between a receiver and a transmitter, where neither the receiver or transmitter are associated with an electronic device carried or worn by the subject.