JP5188886B2 - Plant monitoring system - Google Patents

Description

  The present invention relates to a plant monitoring system.

  Conventionally, various plant monitoring systems are known (see, for example, Patent Document 1). In this type of plant monitoring system, an alarm signal is generated when a plant operation abnormality occurs, the analog RGB switcher is controlled by a sequencer, etc., and a DCS screen is interlockedly displayed on a large screen monitor or an ITV image is displayed. Although there was a system, there was no system or software that could distribute and display a large number of terminal images including a process computer such as an arbitrary DCS under a digital network. For this reason, information sharing, speediness, and transferability among many parties involved in plant operation have not been sufficiently ensured. In addition, this type of plant monitoring system requires sufficient consideration for security.

JP 2007-334745 A

  It is an object of the present invention to improve information sharing, quickness, and transferability while ensuring security in a plant monitoring system.

The present invention provides a first communication network including at least a process monitoring computer, a communication server, a plurality of cameras, a plurality of display terminals, a second communication network including at least an alarm handling server, and the process. possible transmit only information about the screen display of the monitoring computer from the process monitoring computer to said plurality of display terminals, a first connecting means for connecting the process monitoring computer said plurality of display terminals, said process A first connection means for distributing the video of the monitoring computer into two, returning one to the monitor of the process monitoring computer itself, and transmitting the other to the display terminal via a media composer, the communication server, and the alarm handling A second connection means for connecting to the server in a communicable manner; The first communication network and the second communication network are independent from each other except for connection by the first and second connection means, and when the process monitoring computer detects an abnormality, the communication server An alarm signal is transmitted to the alarm handling server via the second connection means, and the alarm handling server that has received the alarm signal transmits the alarm signal to the display terminal that is predetermined according to the alarm signal. Instructing the process monitoring computer to display at least one of screen display in a predetermined manner in response to the alarm signal, and receiving the command, the display terminal receives the command in response to the command. At least one of a camera image and a screen display of the process monitoring computer; Show in serial manner, to provide a plant monitoring system.

  When the alarm handling server receives the alarm signal, at least one of the image of the camera and the screen display on the process monitoring computer is displayed on the display terminal in a predetermined manner, so that the information can be shared, quickly, and transmitted Will improve.

  Since the first network and the second network are independent of each other except for connection by the first and second connection means, high security can be obtained.

  According to the plant monitoring system of the present invention, it is possible to improve information sharing, quickness, and transferability while ensuring security.

  FIG. 1 shows a plant monitoring system 1 according to an embodiment of the present invention. The plant monitoring system 1 includes a plant operation network (first communication network) 2 that functions as a distributed control system (DCS) for a plant such as a chemical plant, and an information network (a network for browsing as described in detail later). 2nd communication network) 3.

  The plant operation network 2 includes a DCS server (not shown) that controls the process operation, a plurality of process management PCs (process management computers) 4 for monitoring and managing the process operation, and a communication server 5. In the present embodiment, the process management PC 4 includes not only the process management PC in a narrow sense but also a dedicated computer terminal for a gas detector, a fire alarm, a thermography, and the like used for plant operation monitoring.

  On the other hand, the information network 3 includes a plurality of video display PCs (display terminals) 7 and an alarm handling server 8. In addition, a plurality of cameras 11 (installed at predetermined positions in the plant) are connected to the information network 3 via an encoder 9 and a hub 10.

  The process management PC 4 on the plant operation network 2 side is connected to a video display PC 7 on the information network 3 side via an Ethernet (registered trademark) (first connection means) 12. Specifically, after the video of the process management PC 4 is divided into two by the video distributor 13, one is returned to the monitor of the process management PC 4 itself, and the other is input to the media composer 14 via the Ethernet (registered trademark) 12. To the information network 3.

  The communication server 5 on the plant operation network 2 side is communicably connected to the alarm handling server 8 on the information network 3 side via a serial communication line (second connection means) 15.

  Except for the Ethernet (registered trademark) 6 and the serial communication line 15, the plant monitoring network 2 and the information network 3 are not connected to each other and are independent from each other.

  Dedicated browsing software is installed in the video display PC 7. With this dedicated browsing software, the video from the camera 11 and the screen display distributed from the process management PC 4 can be selectively displayed on a multi-screen combining the individual display and the individual display. It is also possible to register a display screen combining a plurality of desired screens and display an automatic sequence.

  Hereinafter, operation | movement of the plant monitoring system 1 of this embodiment is demonstrated.

  Referring also to FIG. 2, when the process management PC 4 detects an abnormality in plant operation during normal plant operation (step S1), an alarm video display command is transmitted to the communication server 5 (steps S2 and S3 in FIG. 2). And arrows A1, A2) in FIG. Plant operation abnormalities include reception of alarm signals such as DCS alarms, fire alarms, gas detectors, and various sensor signals. The alarm video display command includes various types of information regarding the content of the abnormality including the location where the alarm occurred.

  The alarm video display command is transmitted by the communication server 5 to the alarm handling server 8 via the serial communication line 15 (step S4 in FIG. 2 and arrow A3 in FIG. 1). The alarm handling server 8 interrupts the current video display and displays the alarm video for the video display PC 7 that is determined in advance according to the received alarm video display command (including information for specifying the location where the alarm occurred). A request for interrupt display or pop-up display of an image corresponding to the command is transmitted together with an alarm (step S5 in FIG. 2 and arrow A4 in FIG. 1). This request includes which of the plurality of cameras 11 (one or a plurality of images) is to be displayed. This request includes whether a screen display via the media composer 14 is requested and displayed from any one of the plurality of process management PCs 4 (which may be one or more). In addition, this request includes how the video of the camera 11 and the process management PC 4 is displayed on the video display PC 7. The video display PC 7 that has received the request from the alarm handling server 8 interrupts and displays at least one of the screen display of the process management PC 4 and the video of the camera 11 according to the request (step S5 in FIG. 2).

  In the plant monitoring system 1 of the present embodiment, the image of the camera 11 corresponding to the alarm signal video display command and the display screen of the process management PC 4 (which may include related documents) are forcibly displayed on the video display PC 7. Since it has a function to display an interruption, it is possible to quickly share driving information and to make judgments. The video display PC 7 equipped with dedicated software is placed in the relevant departments, such as operator rooms, staff rooms, factory offices, safety and disaster prevention departments, etc., and alarm related information is immediately available to those who need it. Distribution display is possible.

  As described above, the plant monitoring system 1 according to the present embodiment greatly improves the functionality of plant operation monitoring, and can share information between a large number of parties regardless of whether it is a normal operation or an emergency. Communication is enhanced and accurate decision making and judgment processing can be performed in each department in charge, contributing to safe operation of the plant. For example, when an abnormal situation occurs at a plant, close cooperation is required not only with the relevant operating staff, but also with many other related parties such as the related plant department, the department in charge of safety and disaster prevention, and the liaison department for administrative affairs. It is possible to promptly respond to each concerned person because it is possible to notify necessary information to all the concerned persons without giving a request, and the concerned persons can simultaneously view necessary information from each terminal. Therefore, it will be an effective system indispensable for wide-area monitoring and integrated monitoring of factories in the future. It is also possible to distribute to terminals on other networks such as the head office via the gateway.

  The plant monitoring system 1 of the present embodiment is operated independently as a closed system, and unlike the conventional system of this type that requires a dedicated terminal for browsing, dedicated browsing software is installed on a PC on the information network 3. It can be used as a video display PC 7 simply by installing. Moreover, since the information network 3 is isolated from the plant operation network 2, even when the alarm handling server 8 receives an alarm video display command, it is the process management that the video display PC 7 receives from the plant monitoring network 2 side. Only the screen display of the PC 4 is performed, and the video display PC 7 does not perform any other data communication with the process management PC 4. Therefore, illegal intrusion or virus infection or the like does not occur in the plant operation network 2 via devices on the information network 3 including the video display PC 7, and it is possible to prevent erroneous operation or illegal takeover from affecting the operation.

  As is clear from the above description, the plant monitoring system of the present embodiment can improve information sharing, quickness, and transferability while ensuring security.

  The plant monitoring system 1 of this embodiment includes various hardware including a video distributor 13, a media composer 14, an alarm handling server 8, a process management PC 4, a communication server 5, and a video display PC 7, and software for integrated control of these hardware. Can be configured.

  Although this embodiment is a plant monitoring system, the present invention can also be applied to a PC information sharing system of different systems, such as a monitoring control system for fire fighting, police, harbors, an emergency distribution system for monitoring terminal information, a monitoring system, etc. .

The typical block diagram which shows the plant monitoring system of embodiment of this invention. The flowchart for demonstrating operation | movement of the plant monitoring system of embodiment of this invention.

Explanation of symbols

1 Plant monitoring system 2 Plant operation network 3 Information network 4 Process management PC
5 Communication server 6 Ethernet (registered trademark)
7 Video display PC
8 Alarm handling server 9 Encoder 10 Hub 11 Camera 12 Ethernet (registered trademark)
13 Video distributor 14 Media composer 15 Serial communication line

Claims (1)

A first communication network including at least a process monitoring computer and a communication server;
A second communication network including at least a plurality of cameras, a plurality of display terminals, and an alarm handling server ;
A first connection means for connecting the process monitoring computer and the plurality of display terminals so that only information relating to the screen display of the process monitoring computer can be transmitted from the process monitoring computer to the plurality of display terminals ; A first connection means for distributing the video of the process monitoring computer into two, returning one to the monitor of the process monitoring computer itself, and transmitting the other to the display terminal via a media composer;
A second connection means for communicatively connecting the communication server and the alarm handling server;
The first communication network and the second communication network are independent from each other except for connection by the first and second connection means;
When the process monitoring computer detects an abnormality, the communication server sends an alarm signal to the alarm handling server via the second connection means,
The alarm handling server that has received the alarm signal responds to the alarm signal with at least one of an image of the camera and a screen display on the process monitoring computer with respect to the display terminal that is predetermined according to the alarm signal. Command to display in a predetermined manner,
The said display terminal which received the said instruction | indication is a plant monitoring system which displays the image of the said camera and the screen display of the said process monitoring computer in the said aspect according to the said instruction | indication.