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    • 1. 发明授权
    • Apparatus and method for determining the position of a work implement
    • 用于确定作业工具的位置的装置和方法
    • US5951613A
    • 1999-09-14
    • US735853
    • 1996-10-23
    • William C. SahmGregory R. HarrodRonald J. SirokyCraig L. KoehrsenSatish M. Shetty
    • William C. SahmGregory R. HarrodRonald J. SirokyCraig L. KoehrsenSatish M. Shetty
    • E02F3/85G01C15/00G01S5/14G01S19/03G01S19/05G01S19/10G01S19/19G01S19/45G01S19/50G01S19/53G05B19/18G06F19/00
    • E02F3/847G01S19/03G01S19/05G01S19/45G01S19/53G01S19/10G01S19/50Y10S37/907
    • An apparatus for determining a position of a work implement of a work machine in a site coordinate system. The position of the work implement is defined as the position in the site coordinate system of two fixed points located on the work implement. The apparatus includes first and second position sensors mounted on the work implement. A pitch sensor connected to the work implement senses a pitch of the work implement and responsively produces a pitch signal. A cross slope sensor connected to the work implement senses a cross slope of the work implement and responsively produces a cross slope signal. A rotation sensor connected to the work implement senses a rotation of the work implement and responsively produces a rotation sensor. A controller, coupled to the first and second GPS receivers, the pitch sensor, the cross slope sensor and the rotation sensor, receives the first and second position, pitch, cross slope, and rotation signals, determines the position of the work implement in the site coordinate system as a function of the first and second position signals and the pitch signal if the first and second position signals are valid and determines the position of the work implement in the site coordinate system as a function if one of the first and second position signals and the pitch, cross slope and rotation signals if an other of the first and second position signals is not valid.
    • 一种用于确定位置坐标系中的作业机器的作业工具的位置的装置。 工件的位置定义为位于工作台上的两个固定点的位置坐标系中的位置。 该装置包括安装在工作工具上的第一和第二位置传感器。 连接到工作装置的俯仰传感器感测到工作装置的音高并且响应地产生音调信号。 连接到工作装置的十字斜面传感器感测工作装置的十字斜面,并且响应地产生交叉斜坡信号。 连接到工作装置的旋转传感器感测工作装置的旋转并且响应地产生旋转传感器。 耦合到第一和第二GPS接收器的控制器,俯仰传感器,十字斜面传感器和旋转传感器,接收第一和第二位置,俯仰,交叉斜坡和旋转信号,确定工作装置在 如果第一和第二位置信号是有效的,则作为第一和第二位置信号和音调信号的函数的位置坐标系作为第一和第二位置之一确定作业位置坐标系中的作业功能 如果第一和第二位置信号中的另一个无效,则信号和音调,交叉斜率和旋转信号。
    • 4. 发明授权
    • Method and apparatus for machine health inference by comparing two like
loaded components
    • 通过比较两个类似加载组件的机器健康推理的方法和装置
    • US5566091A
    • 1996-10-15
    • US269474
    • 1994-06-30
    • David R. SchrickerRolland D. SchollSatish M. ShettyDavid G. Young
    • David R. SchrickerRolland D. SchollSatish M. ShettyDavid G. Young
    • G01D21/00F01N11/00F02B3/06F02B75/18F02B77/08F02D41/22F02D45/00G01M15/04G05B23/02G08B21/00
    • F02D41/22F01N11/002F02B77/08G01M15/048F02B2075/1824F02B3/06Y02T10/40Y02T10/47
    • A method and apparatus are disclosed for monitoring similar machine components loaded in parallel to produce trend information useful in diagnosing and predicting component degradation or failure. The invention is illustrated for engine cylinder exhaust port and manifold temperature measurements. In one embodiment split exhaust manifolds are each provided with a sensor to produce signals indicating the exhaust temperature. A computer-based trending module receives the parallel temperature information, periodically determines a difference between the temperatures, and averages the differential temperature readings over a predefined trend period to generate a trend values. A trend based on a plurality of the trend points is generated and monitored for changes which indicate the possible degradation of one of the measured components. A trap window (trend definition) comprising one or more machine operating parameter levels which must be met to generate a trend value can be used to improve the diagnostic value of the trending. The trap window can be further refined with a trap-lag period allowing the measured components to reach a steady state when a new trap window is entered before trend values are generated. The invention can be used with both stationary and mobile machines, with the data trending and monitoring performed either onboard or remotely from the machine.
    • 公开了用于监视并联加载的类似机器部件以产生用于诊断和预测部件退化或故障的趋势信息的方法和装置。 本发明用于发动机气缸排气口和歧管温度测量。 在一个实施例中,分开的排气歧管各自设置有传感器以产生指示排气温度的信号。 基于计算机的趋势模块接收并行温度信息,周期性地确定温度之间的差异,并且在预定义的趋势周期内平均差分温度读数以产生趋势值。 产生并基于多个趋势点的趋势来监测指示所测量的部件之一可能劣化的变化。 可以使用包括必须满足以产生趋势值的一个或多个机器操作参数水平的陷阱窗口(趋势定义)来改善趋势的诊断值。 陷阱窗口可以进一步细化,具有陷阱滞后期,允许测量的组件在生成趋势值之前输入新的陷阱窗口时达到稳定状态。 本发明可以与静态和移动机器一起使用,数据趋势和监视在机上或从机器远程执行。