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公开(公告)号：US20230145367A1
公开(公告)日：2023-05-11
申请号：US16958761
申请日：2019-10-10
发明人： Ryosuke HIGASHIYA , Akira NOJIMA , Nobuo SHIMIZU , Ryo SHIMIZU
IPC分类号： G05B19/4155
CPC分类号： G05B19/4155 , G05B2219/32404
摘要： A SCADA web HMI system dynamically distributes server connection priority lists from web HMI servers to HMI clients in accordance with order of assignment which takes load balancing into account. As a result, preliminary settings associated with connection priority do not need to be made on the HMI clients. Also, since the server connection priority lists are assigned to the HMI clients in accordance with the order of assignment which takes load balancing into account, the numbers of clients connected to the individual web HMI servers are equalized and the load balancing can be ensured. The SCADA web HMI system can reduce the operating costs necessary in client settings while ensuring redundancy and load balancing of servers.
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公开(公告)号：US20210208562A1
公开(公告)日：2021-07-08
申请号：US17056429
申请日：2018-10-31
发明人： Hiroyuki FUJIEDA , Nobuo SHIMIZU , Akira NOJIMA , Kyohei MIYAKE
摘要： A hybrid rendering HMI terminal device (32) is provided with a web browser (321) and an HMI Web Runtime (322). The web browser (321) displays an HMI screen on which a first part and a second part that represent the state of a monitoring target device (7) are arranged. When signal data from the monitoring target device (7) is analog numerical data, a WebGL rendering processing unit (322i) renders the first part associated with the signal data by WebGL rendering. When signal data from the monitoring target device (7) is data other than analog numerical data, an SVG rendering processing unit (322h) renders the second part associated with the signal data by SVG rendering.
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公开(公告)号：US20230251624A1
公开(公告)日：2023-08-10
申请号：US18006727
申请日：2021-07-07
发明人： Ryo SHIMIZU , Akira NOJIMA , Nobuo SHIMIZU
IPC分类号： G05B19/4097 , G06F3/0486 , G06T11/60 , G06T11/20
CPC分类号： G05B19/4097 , G06F3/0486 , G06T11/60 , G06T11/206 , G05B2219/35012 , G06T2200/24
摘要： A drawing creating device generates HMI configuration data for a system monitoring screen from a network configuration diagram drawn by drag-and-drop operation. An HMI server device executes a system monitoring process by applying HMI configuration data to a predetermined server runtime library, and transmits a display signal according to the communication status of a monitored device. An HMI client device draws the system monitoring screen on a web browser and changes the display statuses of the parts positioned on the system monitoring screen according to the received display signal. According to the present invention, the system monitoring function of an industrial plant can be implemented in a non-programmable graphical manner.
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公开(公告)号：US20230236584A1
公开(公告)日：2023-07-27
申请号：US17756728
申请日：2020-11-24
发明人： Vittal RAO , Akira NOJIMA , Nobuo SHIMIZU , Ryo SHIMIZU
IPC分类号： G05B19/418
CPC分类号： G05B19/41865 , G05B2219/50185
摘要： When a general-purpose operation part (22, 23) is hidden by a window part (24), it becomes hard for an operator to visually check an association state between a field device (10A, 10B) and a hardware switch (3). If such a display state has occurred, an HMI server (5) stops a health check signal which is being output to a PLC (6). The PLC (6) detects the stop of the health check signal and forcibly cancels the association state between the field device (10A, 10B) and the hardware switch (3). Thus, a human error can be prevented.
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公开(公告)号：US20240295862A1
公开(公告)日：2024-09-05
申请号：US17754766
申请日：2020-06-01
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： A web browser (5) makes a communication thread (7) and a DOM update thread (6) run in parallel. The communication thread (7) overwrites, when signal data having the same unique identifier as received signal data already exists in a buffer area, the signal data stored in the buffer area with the received signal data. When receiving a signal data request event from the DOM update thread (6), the communication thread (7) transmits all signal data stored in the buffer area to the DOM update thread (6). The DOM update thread (6) updates a DOM for all the signal data. The DOM update thread (6) transmits, after updating the DOM, the signal data request event to the communication thread and updates, according to the updated DOM, a display content of a display part displayed on the web browser (5).
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公开(公告)号：US20230280724A1
公开(公告)日：2023-09-07
申请号：US18007487
申请日：2021-07-07
发明人： Ryo SHIMIZU , Akira NOJIMA , Nobuo SHIMIZU
IPC分类号： G05B19/418
CPC分类号： G05B19/4183 , G05B19/4185
摘要： The SCADA web HMI client device runs a plurality of web browsers communicating with a web server. A first web browser is displayed on first monitor and draws an HMI screen for monitoring and controlling an industrial plant. A second web browser is displayed on a second monitor and draws the HMI screen. An operation right table is obtained from the web server. If, in the operation right table, the first web browser is not permitted to operate the HMI screen, an operation part positioned on the HMI screen of the first web browser is drawn in an inoperable state. If, in the operation right table, the second web browser is permitted to operate the HMI screen, the operation part positioned on the HMI screen of the second web browser is drawn in an operable state.
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公开(公告)号：US20220057780A1
公开(公告)日：2022-02-24
申请号：US17413581
申请日：2019-11-26
发明人： Ryosuke HIGASHIYA , Akira NOJIMA , Nobuo SHIMIZU , Ryo SHIMIZU
IPC分类号： G05B19/4155 , G06F3/0484
摘要： An SCADA web HMI system includes a web browser for displaying an HMI screen. An integrated part identifier generation unit generates a new integrated part identifier when attribute identifiers of first part data and second part data are identical. A part data change unit changes part identifiers of the first part data and the second part data to the integrated part identifier. An integrated item name generation unit generates an integrated item name in which a screen identifier of the HMI screen, the integrated part identifier, and the identical attribute identifier are combined. The web browser changes, when a PLC signal received from a programmable logic controller corresponds to the integrated item name, a display state of the first part based on first display information and changes a display state of the second part based on second display information, according to the value of the received PLC signal.
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公开(公告)号：US20240310802A1
公开(公告)日：2024-09-19
申请号：US18575322
申请日：2022-06-21
发明人： Takaharu HASHIZUME , Akira NOJIMA , Nobuo SHIMIZU
IPC分类号： G05B19/042
CPC分类号： G05B19/042 , G05B2219/24215
摘要： A SCADA server apparatus includes a communication driver, and a client management unit connected to the HMI client apparatuses in one-to-one relationship. The client management unit includes a reception thread receiving signal data transmitted from the communication driver, first and second signal data buffers capable of storing the signal data received by the reception thread in association with a signal data identifier for each data type, and a transmission thread reading out the signal data stored in the first or second signal data buffer and transmitting the read signal data to the HMI client apparatuses. During a period when the transmission thread reads out the signal data from one of the first and second signal data buffers and transmits the signal data to the HMI client apparatuses, the signal data stored in another of the first and second signal data buffers is overwritten.
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公开(公告)号：US20220390934A1
公开(公告)日：2022-12-08
申请号：US17754599
申请日：2020-06-30
发明人： Ryosuke HIGASHIYA , Akira NOJIMA , Nobuo SHIMIZU , Ryo SHIMIZU
摘要： A SCADA web HMI system generates an integrated component by grouping components including a first component and provides a first animation effect to the integrated component. The first animation effect is applied to the integrated component as a whole but not individually applied to components constituting the integrated component. The system provides a second animation effect to the first component. The second animation effect is applied to the first component but not applied to the components constituting the integrated component except for the first component. The system associates the first animation effect with the value of a first PLC signal and changes the appearance of the integrated component according to the value of the first PLC signal. The system associates the second animation effect with the value of a second PLC signal and changes the appearance of the first component according to the value of the second PLC signal.
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公开(公告)号：US20240201646A1
公开(公告)日：2024-06-20
申请号：US18554800
申请日：2022-03-30
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： A SCADA web HMI client device comprises a processor and a memory. The memory stores a user access level, image data for an HMI screen, and screen access authority information, all received from a web server. The screen access authority information includes an operation access level of the HMI screen and operation permission/prohibition of the HMI screen by the web browser. The processor draws the HMI screen in an operable state on the web browser in a case where the user access level is greater than or equal to the operation access level and where operation of the HMI screen by the web browser is permitted. The processor draws the HMI screen in an inoperable state on the web browser in a case where the user access level is less than the operation access level or operation of the HMI screen by the web browser is not permitted.
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