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    • 3. 发明授权
    • Position based velocity estimator
    • 基于位置的速度估计器
    • US07706976B1
    • 2010-04-27
    • US11408480
    • 2006-07-26
    • John William Peake
    • John William Peake
    • G01C21/00
    • G01S19/52G01P3/64G01S19/41G01S19/44G01S19/49
    • A method of determining speed and heading of a rover/rover having one degree of freedom comprising the following steps: (A) determining a rover position coordinates using at least one source of a radio position measurements; (B) storing a set of statistically different rover points in a memory block, and (C) using a subset of rover points including a plurality of stored rover points and a current rover point to determine a speed and a heading of the rover. It is assumed that each rover point comprises a time Epoch and a rover position determined at time Epoch, and that each pair of statistically different rover points comprises two rover positions separated by a statistically significant distance.
    • 一种确定具有一个自由度的流动站/流动站的速度和航向的方法,包括以下步骤:(A)使用无线电位置测量的至少一个来源确定流动站位置坐标; (B)将一组统计上不同的漫游点存储在存储器块中,以及(C)使用包括多个存储的流动站和流动站的流动站点的子集来确定流动站的速度和航向。 假设每个流动站包括在时间Epoch确定的时间时刻和流动站位置,并且每对统计学上不同的流动站点包括由统计学上显着的距离分隔的两个漫游者位置。
    • 4. 发明授权
    • Method to calibrate hydraulic flow valves in situ
    • 原位校准液压流量阀的方法
    • US07266467B1
    • 2007-09-04
    • US11363120
    • 2006-02-25
    • John William Peake
    • John William Peake
    • G01F1/58
    • F15B19/002F15B19/007
    • A method for performing system characterization in situ for a system comprising a actuator controlled by a proportional controller. The system includes a quasi-linear region characterized by a slope of the system response and by a delay in the quasi-linear region of the system. The system includes at least one dead zone (DZ). The method comprises the following steps: (A) applying an input waveform U(t) to an input of the system comprising the actuator controlled by the proportional controller; (B) measuring waveform characteristics of an output waveform {dot over (X)}(t) in a relevant region of the output waveform; (C) calculating a set of parameters selected from the group consisting of: {at least one DZ; a system delay; and a slope of the system response in the quasi-linear region of said system} based on the measured waveform characteristics of the output waveform; and (D) performing the system characterization in situ by using the set of calculated parameters selected from the group consisting of: {at least one DZ; the system delay; and the slope of the system response in the quasi-linear region of the system}.
    • 一种用于对包括由比例控制器控制的致动器的系统进行原位系统表征的方法。 该系统包括以系统响应的斜率和系统的准线性区域的延迟为特征的准线性区域。 该系统包括至少一个死区(DZ)。 该方法包括以下步骤:(A)将输入波形U(t)应用于包括由比例控制器控制的致动器的系统的输入; (B)测量输出波形的相关区域中的点(X(t))的输出波形的波形特性;(C)计算从由以下组成的组中选择的一组参数:{至少一个DZ;系统 延迟;以及所述系统的准线性区域中的系统响应的斜率},基于所测量的输出波形的波形特性;以及(D)通过使用从 组由以下组成:{至少一个DZ;系统延迟;以及系统的准线性区域中的系统响应的斜率}。