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    • 1. 发明授权
    • Laser radar device and method
    • 激光雷达装置及方法
    • US07391506B2
    • 2008-06-24
    • US11578720
    • 2005-05-18
    • Michael HarrisDavid Arthur SmithAdrian Sean Coffey
    • Michael HarrisDavid Arthur SmithAdrian Sean Coffey
    • G01P3/36
    • G01S17/95G01S7/493Y02A90/19
    • A coherent laser radar or lidar device (2;20;84;90) for measuring wind speed is described that comprises a transmitter for transmitting a beam of light to a remote probe volume (6;54), a receiver for detecting back-scattered light and an analyzer for calculating wind velocity at the remote probe volume from the Doppler shift in frequency of the detected back-scattered light. The analyzer is arranged to monitor for the presence of, and/or to ensure the calculated wind speed is corrected for, any Doppler frequency components of the detected back-scattered light that arise from back-scatter off cloud located at a range greater than the range of the remote probe volume. It is described how the lidar (2;20;84;90) may be scanned and wind velocity components calculated by fitting the scanned line of sight velocity values to a predetermined function. Furthermore, it is outlined how an initial fit may be performed to determine which points are to be used in this calculation. The incorporation of a back scatter profiling means, such as ceilometer (82), is also described. A wind turbine (902) incorporating such a device (90) is also described.
    • 描述了用于测量风速的相干激光雷达或激光雷达装置(2; 20; 84; 90),其包括用于将光束传输到远程探针体积(6; 54)的发射器,用于检测反向散射的接收器 光和分析器,用于根据检测到的反向散射光的频率的多普勒频移来计算遥测探头音量的风速。 该分析器被设置为监测所检测的反向散射光的多普勒频率分量的存在和/或确保计算出的风速,所述多普勒频率分量由位于大于 远程探头音量范围。 描述了如何扫描激光雷达(2; 20; 84; 90),并且通过将扫描的视线速度值拟合为预定函数来计算风速分量。 此外,概述了如何执行初始拟合以确定在该计算中要使用哪些点。 还描述了并入背散射廓线装置,例如光圈仪(82)。 还描述了并入这种装置(90)的风力涡轮机(902)。
    • 3. 发明申请
    • Transmitter unit and control unit
    • 变送器单元和控制单元
    • US20050057359A1
    • 2005-03-17
    • US10918211
    • 2004-08-12
    • Conor CoffeySean CoffeyJoe Dowling
    • Conor CoffeySean CoffeyJoe Dowling
    • G08B21/02G08B1/08
    • G08B21/0202
    • Methods and apparatus that implement a transmitter unit and a control unit to alert a user if the control unit is beyond a limited range of communications. A method of alerting a user that a transmitter unit is beyond a limited range of communicating wirelessly with a control unit may include, wirelessly transmitting a radio frequency signal from the transmitter unit to the control unit, determining at the control unit whether the transmitter unit is beyond the limited range of wireless communications, and selectively generating an alert at the control unit based on a result of the determination. Determining at the control unit whether the transmitter unit is beyond the limited range of wireless communications may include detecting an occurrence of a predetermined condition.
    • 实现发射机单元和控制单元的方法和装置,用于警告用户,如果控制单元超出有限的通信范围。 一种向用户通知发射机单元超出与控制单元进行无线通信的有限范围的方法可以包括:将无线电频率信号从发射机单元传输到控制单元,在控制单元处确定发射机单元是否是 超出无线通信的有限范围,并且基于确定的结果在控制单元处选择性地生成警报。 在控制单元处确定发射机单元是否超出无线通信的有限范围可以包括检测预定条件的发生。