Method and system for monitoring and controlling a multi-variable process throughout a plurality of distinct phases of the process
    2.
    发明授权
    Method and system for monitoring and controlling a multi-variable process throughout a plurality of distinct phases of the process 有权
    用于在整个过程的多个不同阶段中监测和控制多变量过程的方法和系统

    公开(公告)号:US08380328B2

    公开(公告)日:2013-02-19

    申请号:US12678202

    申请日:2008-09-15

    Abstract: A control of a multi-variable process throughout a plurality of successive, distinct operational phases of the process involves accumulation of sets of values of the process and quality variables (a-j) from previous multiple operations of the process through all its phases, as respective datasets of a historical record. Each dataset includes an identifier (p) of the phase to which it relates. The current values of the applicable process variables (Qa-Qh) during each phase and the phase identifier (p) are indicated on respective axes (Xp,Xa-Xh) of a multi-dimensional display in relation to an operational envelope which defines bounds (UL,LL) for the values of the individual process and quality variables (a-j) relevant to that phase and which is derived from the datasets of the historical record identified with that phase. Changes in the current process variables (Qa-Qh) result in changes of the bounds (UL,LL), and alarm is given when a current value departs from within them. Either manually or automatically correction of an alarm condition is made in accordance with calculation of required change of value of one or more manipulatable process variables (a-c).

    Abstract translation: 在整个过程的多个连续的,不同的操作阶段中的多变量过程的控制包括从过程的所有阶段的先前的多个操作中累积过程值和质量变量(aj)的集合作为相应的数据集 的历史记录。 每个数据集包括与其相关的阶段的标识符(p)。 相对于定义边界的操作包络,在多维显示器的各个轴(Xp,Xa-Xh)上指示每个阶段期间适用的过程变量(Qa-Qh)和相位标识符(p)的当前值 (UL,LL)用于与该阶段相关的单个过程和质量变量(aj)的值,并且从根据该阶段确定的历史记录的数据集导出。 当前过程变量(Qa-Qh)的变化导致边界(UL,LL)的变化,并且当当前值从其中偏离时给出报警。 根据一个或多个可操作的过程变量(a-c)的所需要求的变化的计算,进行手动或自动校正报警条件。

    Method and a system for operating a controllable multi-variable process
    3.
    发明授权
    Method and a system for operating a controllable multi-variable process 有权
    用于操作可控多变量过程的方法和系统

    公开(公告)号:US07916140B2

    公开(公告)日:2011-03-29

    申请号:US11997345

    申请日:2006-07-31

    CPC classification number: G05B23/0235 G05B15/02 G05B23/0294 Y02P90/22

    Abstract: Controlling a multi-variable process involves multi-dimensional representation of the values (Qa-Qh) of the process-variables (a-h) according to individual coordinate axes (Xa-Xh), and response based on historical values for the process-variables accumulated from multiple, earlier processes. An envelope (UL-LL) showing the best operating zone (‘BOZ’) for each process variable based on current values of the other variables is calculated from the accumulated historical values, and alarm conditions in which the current value of a variable lies outside the BOZ is rectified by changing the values (Qa-Qc) of manipulatable variables (a-c). Variable targets are achieved, alarms rectified and value optimisation realised using an inner envelope (UI-LI) derived from a subset of the BOZ-defining set of historical values. Where the alarm rate is low, operation is improved by narrowing the BOZ set to tighten the BOZ envelope (UL-LL) reducing an inner envelope where alarm rate remains acceptable, as a new BOZ.

    Abstract translation: 控制多变量过程包括根据各个坐标轴(Xa-Xh)对过程变量(ah)的值(Qa-Qh)的多维表示,以及基于积累的过程变量的历史值的响应 来自多个较早的过程。 根据其他变量的当前值显示每个过程变量的最佳操作区(“BOZ”)的信封(UL-LL)根据累积历史值和变量当前值位于外部的报警条件计算 通过改变可操作变量(ac)的值(Qa-Qc)来纠正BOZ。 实现可变目标,使用从BOZ定义的历史值集合的子集派生的内部包络(UI-LI)实现报警整改和价值优化。 在报警率低的情况下,作为新的BOZ,BOZ设置缩小以收紧BOZ信封(UL-LL)以减少可接受报警率的内部信封,从而提高操作性能。

    Multi-Variable Operations
    5.
    发明申请
    Multi-Variable Operations 有权
    多变量操作

    公开(公告)号:US20080234840A1

    公开(公告)日:2008-09-25

    申请号:US11997345

    申请日:2006-07-31

    CPC classification number: G05B23/0235 G05B15/02 G05B23/0294 Y02P90/22

    Abstract: Controlling a multi-variable process involves multi-dimensional representation of the values (Qa-Qh) of the process variables (a-h) according to individual coordinate axes (Xa-Xh), and response based on historical values for the process-variables accumulated from multiple, earlier processes. An envelope (UL-LL) showing the best operating zone (‘BOZ’) for each process variable based on current values of the other variables is calculated from the accumulated historical values, and alarm conditions in which the current value of a variable lies outside the BOZ is rectified by changing the values (Qa-Qc) of manipulatable variables (a-c). Variable targets are achieved, alarms rectified and value optimisation realised using an inner envelope (UI-LI) derived from a subset of the BOZ-defining set of historical values. Where the alarm rate is low, operation is improved by narrowing the BOZ set to tighten the BOZ envelope (UL-LL) reducing an inner envelope where alarm rate remains acceptable, as a new BOZ.

    Abstract translation: 控制多变量过程包括根据各个坐标轴(Xa-Xh)对过程变量(ah)的值(Qa-Qh)的多维表示,以及基于从 多个较早的过程。 根据其他变量的当前值显示每个过程变量的最佳操作区(“BOZ”)的信封(UL-LL)根据累积历史值和变量当前值位于外部的报警条件计算 通过改变可操作变量(ac)的值(Qa-Qc)来纠正BOZ。 实现可变目标,使用从BOZ定义的历史值集合的子集派生的内部包络(UI-LI)实现报警整改和价值优化。 在报警率低的情况下,作为新的BOZ,BOZ设置缩小以收紧BOZ信封(UL-LL)以减少可接受报警率的内部信封,从而提高操作性能。

    Output protection for arc discharge lamp ballast
    6.
    发明授权
    Output protection for arc discharge lamp ballast 失效
    电弧放电灯镇流器的输出保护

    公开(公告)号:US06292339B1

    公开(公告)日:2001-09-18

    申请号:US09274489

    申请日:1999-03-23

    CPC classification number: H05B41/2855

    Abstract: Output protection for arc discharge lamp ballasts is provided by applying sampled ballast current to a burden capacitor selected to present a low impedance across the winding to a substantially symmetrical waveform of the sample current. Asymmetry between the positive and negative half-cycles of the sample waveform, such as partial rectification caused by abnormal lamp operation, results in charge buildup across the capacitor. Sufficient charge buildup actuates a ballast disabling switch such as a silicon controlled rectifier.

    Abstract translation: 电弧放电灯镇流器的输出保护是通过将采样的镇流器电流施加到选择的负载电容器以将绕组的低阻抗提供到样本电流的基本对称的波形来提供的。 样品波形的正半周期和负半周期之间的不对称性,例如由异常灯操作引起的局部整流导致电容器两端的电荷累积。 足够的电荷累积启动镇流器禁止开关,例如可控硅整流器。

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