Apparatus for detecting the amplitude and phase of an A.C. signal
    1.
    发明授权
    Apparatus for detecting the amplitude and phase of an A.C. signal 失效
    用于检测交流信号的振幅和相位的装置

    公开(公告)号:US5714877A

    公开(公告)日:1998-02-03

    申请号:US754504

    申请日:1996-11-19

    摘要: An apparatus for detecting the amplitude and phase of an a.c. signal. The apparatus includes a signal detection circuit for detecting the a.c. signal, a signal splitting circuit for splitting the detected a.c. signal into first and second a.c. signals out of phase with each other by 90.degree.. The signal splitting circuit includes a low-pass filter, and a differentiation circuit. The apparatus also includes a phase compensation circuit coupled to the signal splitting circuit for receiving the first and second a.c. signals from the signal splitting circuit and for advancing the phase of an output signal of the apparatus by the phase lag of the low-pass filter. The phase compensation circuit also includes an amplitude and phased detection circuit for detecting the amplitude and phase of the detected a.c. signal by implementing a polar coordinate transformation of the first and second a.c. signals received from the signal splitting circuit.

    摘要翻译: 一种用于检测直流电压的振幅和相位的装置。 信号。 该装置包括用于检测直流电压的信号检测电路。 信号,用于分离检测到的交流电平的信号分离电路。 信号进入第一和第二个a.c. 信号异相90度。 信号分离电路包括低通滤波器和微分电路。 该装置还包括耦合到信号分离电路的相位补偿电路,用于接收第一和第二直流 来自信号分离电路的信号,并且通过低通滤波器的相位差推进装置的输出信号的相位。 相位补偿电路还包括幅度和相位检测电路,用于检测检测到的交流电的幅度和相位。 通过实施第一和第二等角的极坐标变换来发出信号。 从信号分离电路接收的信号。

    Apparatus for detecting the amplitude and phase of an a.c. signal
    5.
    发明授权
    Apparatus for detecting the amplitude and phase of an a.c. signal 失效
    用于检测交流电压的幅度和相位的装置 信号

    公开(公告)号:US5808462A

    公开(公告)日:1998-09-15

    申请号:US752316

    申请日:1996-11-19

    摘要: An apparatus for detecting the amplitude and phase of an a.c. signal. The apparatus includes a signal detection circuit for detecting the a.c. signal, a signal splitting circuit for splitting the detected a.c. signal into first and second a.c. signals out of phase with each other by 90.degree.. The signal splitting circuit includes a first order lag circuit having a phase lag, a subtractor, and first and second amplifying circuits. The apparatus also includes a phase compensation circuit coupled to the signal splitting circuit for receiving the first and second a.c. signals from the signal splitting circuit and for advancing the phase of an output signal of the apparatus by the phase lag of the first order lag circuit. The phase compensation circuit also includes an amplitude and phase detection circuit for detecting the amplitude and phase of the detected a.c. signal by implementing a polar coordinate transformation of the first and second a.c. signals received from the signal splitting circuit.

    摘要翻译: 一种用于检测直流电压的振幅和相位的装置。 信号。 该装置包括用于检测直流电压的信号检测电路。 信号,用于分离检测到的交流电平的信号分离电路。 信号进入第一和第二个a.c. 信号异相90度。 信号分离电路包括具有相位滞后的第一级滞后电路,减法器以及第一和第二放大电路。 该装置还包括耦合到信号分离电路的相位补偿电路,用于接收第一和第二直流 来自信号分离电路的信号,并且用于使装置的输出信号的相位提前一阶滞后电路的相位滞后。 相位补偿电路还包括一个幅度和相位检测电路,用于检测检测到的交流电的幅度和相位。 通过实施第一和第二等角的极坐标变换来发出信号。 从信号分离电路接收的信号。

    Interactive graphic recognition and data processing system
    7.
    发明授权
    Interactive graphic recognition and data processing system 失效
    交互式图形识别和数据处理系统

    公开(公告)号:US5034901A

    公开(公告)日:1991-07-23

    申请号:US915061

    申请日:1986-10-06

    IPC分类号: G09B29/00 G06F17/50 G06T11/00

    CPC分类号: G06T11/00

    摘要: An interactive graphic recognition and data processing system includes an image reader for reading a facility drawing in which facility symbols are drawn, a display device for displaying the facility drawing read by the image reader overlapped with a topographical drawing corresponding thereto, a mouse for designating the position of the facility symbol displayed on the display device, a recognition device for recognizing the facility symbol designated by the mouse by comparing the same with a plurality kinds of facility symbols previously stored and causing the facility symbols recognized thereby to be displayed in different color from the color of the facility symbols which have not yet been recognized, and a memory for storing therein positional data in the topographical drawing of the facility symbol recognized by the recognition device and attributive data about the facility symbol as data base.

    摘要翻译: 交互式图形识别和数据处理系统包括用于读取其中绘制设施符号的设施图形的图像读取器,用于显示由图像读取器读取的设备图纸的显示装置,其与与其对应的外形图重叠,用于指定 在显示装置上显示的设施符号的位置,识别装置,用于通过将由鼠标指定的设施符号与先前存储的多种设施符号进行比较来识别设备符号,并使由其识别的设施符号以不同的颜色显示 还没有被识别的设施符号的颜色,以及用于存储由识别装置识别的设施符号的形状图中的位置数据和关于设施符号的属性数据作为数据库的存储器。

    Interruptibility/priority control scheme for artificial intelligence
software shell
    8.
    发明授权
    Interruptibility/priority control scheme for artificial intelligence software shell 失效
    人工智能软件外壳的中断/优先控制方案

    公开(公告)号:US5402526A

    公开(公告)日:1995-03-28

    申请号:US873

    申请日:1993-01-05

    CPC分类号: G06N5/043

    摘要: An artificial intelligence software shell for plant operation simulation includes a blackboard module including a database having objects representing plant elements and concepts. A rule-based knowledge source module and a case-based knowledge source module, in communication with the blackboard module, operate on specific predefined blackboard objects. An input data module, in communication with the blackboard module, enables a user to input data to the shell. A control module, in communication with the knowledge source modules and the input data module, receives all input data and controls operation of the knowledge source modules in accordance with a predetermined knowledge source interruptibility/priority scheme. The control module including an event detector module having a hash table defined by a chaining algorithm.

    摘要翻译: 用于植物操作模拟的人造智能软件壳包括:黑板模块,包括具有表示植物元素和概念的对象的数据库。 与黑板模块通信的基于规则的知识源模块和基于案例的知识源模块在特定的预定义黑板对象上操作。 与黑板模块通信的输入数据模块使得用户能够向壳体输入数据。 与知识源模块和输入数据模块通信的控制模块根据预定的知识源中断/优先级方案接收所有输入数据并控制知识源模块的操作。 控制模块包括具有由链接算法定义的散列表的事件检测器模块。