公开(公告)号：US20230342184A1

公开(公告)日：2023-10-26

申请号：US18003920

申请日：2021-06-10

申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

发明人： Ryo SHIMIZU ,  Akira NOJIMA ,  Nobuo SHIMIZU

IPC分类号： G06F9/46

CPC分类号： G06F9/465

摘要： An object of the present invention is to provide a SCADA web HMI system that can reduce a load for processing input/output signals in a large-scale system. An HMI server apparatus performs three filtering processing. In first filtering processing, in a case where received block data corresponds to a screen currently displayed on a web browser, a set of input/output signals is extracted from the received block data. In second filtering processing, input/output signals each having a value varied from a previous value are extracted from the set of input/output signals extracted in the first filtering processing. In third filtering processing, input/output signals corresponding to display parts arranged in the screen currently displayed on the web browser, are extracted from the input/output signals extracted in the second filtering processing.

公开(公告)号：US20230259087A1

公开(公告)日：2023-08-17

申请号：US18003157

申请日：2021-06-10

申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

发明人： Ryo SHIMIZU ,  Akira NOJIMA ,  Nobuo SHIMIZU

IPC分类号： G05B19/042

CPC分类号： G05B19/042 ,  G05B2219/24215

摘要： An object of the present invention is to provide a SCADA web HMI system that can reduce a load for processing an alarm signal in a large-scale system. An HMI server apparatus performs buffering processing and alarm filtering processing. In the buffering processing, in a case where a received block data includes a set of alarm signals, at least the set of alarm signals included in the block data is temporarily stored in an alarm buffer memory. In the alarm filtering processing, the set of alarm signals stored in the alarm buffer memory is taken out for every second period that is longer than a first period, and the alarm signal having a value varied from a previous value is extracted from the taken-out set of alarm signals.

公开(公告)号：US20210191356A1

公开(公告)日：2021-06-24

申请号：US17053369

申请日：2018-10-31

申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation

发明人： Hiroyuki FUJIEDA ,  Nobuo SHIMIZU ,  Akira NOJIMA

IPC分类号： G05B19/05

摘要： An HMI renders on an HMI screen a process line which includes: a movable looper group part obtained by grouping at least one movable roll part and a plurality of line parts connected to the movable roll part; and a plurality of fixed roll parts connected to the movable looper group part. The HMI continuously obtains a process line length from an output signal of a monitoring target device. The HMI calculates a looper movement amount by dividing a difference between a process line total length and the process line length by the number of parts in the plurality of line parts which are shared by the movable looper group part with the plurality of fixed roll parts. The HMI changes a relative position between the plurality of fixed roll parts and the movable looper group part on the HMI screen according to the looper movement amount.