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    • 8. 发明授权
    • Distributed single board computer industrial control system
    • 分布式单板计算机工业控制系统
    • US4253148A
    • 1981-02-24
    • US37189
    • 1979-05-08
    • William D. JohnsonDonald L. EwingJames S. Grisham, Jr.
    • William D. JohnsonDonald L. EwingJames S. Grisham, Jr.
    • G05B15/02G05B19/05G05B19/418G06F13/38G06F15/16G06F15/177G06F9/36G06F9/46G06F15/46
    • G06K13/0825G05B19/052G05B19/4181G06F13/385G05B2219/1206G05B2219/15005G05B2219/15068Y02P90/06
    • An industrial control system in accordance with the present invention is provided with a plurality of diverse controlled devices (e.g., fans, pumps, valves, solenoids, relays, etc.) for effecting overall system control. Each device has a unique set of logic control functions and/or command sequences and is connected, through an input/output interface, to a stored-program single board computer that provides device control and monitoring. The computers each include a central processor controlled by a composite or "master" program which is common to all the computers and which includes instruction sequences for all logic control functions and command sequences that exist within the system. A user alterable interconnection device (UAID) permits only those logic control function and/or command sequence portions of the master program that relate to a particular one of the controlled devices to operatively connect with the particular input/output ports associated with that controlled device. As the master program successively loops, only those logic control functions and/or command sequences that relate to the particular controlled device, as determined by the user alterable interconnection device, are operative to address the input-output ports associated with the controlled device and thereby effect device control and monitoring. The invention permits simple and efficient dedication of a plurality of single board computers having only one master program to an equal member of diverse controlled devices without the drawbacks normally associated with dedicated stored-program controllers.
    • 根据本发明的工业控制系统设置有用于实现整个系统控制的多个不同的受控设备(例如,风扇,泵,阀,螺线管,继电器等)。 每个设备具有唯一的一组逻辑控制功能和/或命令序列,并通过输入/输出接口连接到提供设备控制和监控的存储程序单板计算机。 计算机各自包括由所有计算机共同的复合或“主”程序控制的中央处理器,并且包括存在于系统内的所有逻辑控制功能和命令序列的指令序列。 用户可变互连设备(UAID)仅允许与受控设备中的特定一个相关的主程序的逻辑控制功能和/或命令序列部分与与该受控设备相关联的特定输入/输出端口可操作地连接。 当主程序连续循环时,仅由用户可变互连设备确定的与特定受控设备相关的那些逻辑控制功能和/或命令序列可操作以对与受控设备相关联的输入 - 输出端口进行寻址 影响设备的控制和监控。 本发明允许将仅具有一个主程序的多个单板计算机简单而有效地奉献给不同受控设备的相等成员,而不存在通常与专用存储程序控制器相关联的缺点。