JP2011170688A - Monitoring device, monitoring method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring device and method for acquiring status information about a monitoring target device, only when a status of the monitoring target device is changed, and also for generating image data. <P>SOLUTION: The monitoring device includes: a message receiving unit 121 for receiving messages 111 in real time from a plurality of monitoring target devices 30 and for storing the received messages 111 in a memory 11; an analysis unit 122 for analyzing whether the messages 111 acquired from the memory 11 show a change in a status of any one of the monitoring target devices 30; a collection part 123 for gathering status information 112 showing the status of change for a monitoring target device 30 showing the change when the messages 111 show the change in status and for storing the gathered status information 112 in the memory 11; and a communication control unit 124 for generating screen data 114 for display in a screen of a monitoring terminal 20 based on the status information 112 acquired from the memory 11 and for transmitting the image data to the monitoring terminal 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a monitoring device, a monitoring method, and a program for notifying a user of a monitoring state of a monitoring target device in real time.

  Conventionally, in an apparatus monitoring system, the monitoring apparatus monitors the operation status and hardware status of a monitoring target apparatus to be monitored on a network. An HMI (Human Machine Interface) terminal that displays the status of a monitored device uses a Web screen as a user interface, and the HMI terminal side displays the current status of the monitored device on the screen to the monitoring device. To get the latest information. For example, a method of regularly performing the latest information acquisition process on a monitoring device from a Web screen and updating the Web screen is common.

  FIG. 4 is a diagram showing a Web screen update method in the apparatus monitoring system 500 using a conventional Web screen. The device monitoring system 500 includes a monitoring target device 70 to be monitored, a monitoring device 50 that monitors the monitoring target device 70, and an HMI terminal 60. The monitoring device 50 includes a monitoring server 52, a data storage unit 53 that stores the status of the monitoring target device 70 as accumulated data, and a Web server 51 that generates a Web screen.

  The monitoring server 2 monitors the monitoring target device 70 at predetermined time intervals, acquires status information from the monitoring target device 70, and stores the acquired status information in the data storage unit 53. After receiving the information acquisition request from the HMI terminal 60, the Web server 51 acquires status information from the accumulated data storage unit 53, generates display data to be displayed on the Web screen, and transmits the display data to the HMI terminal 60. The HMI terminal 60 receives the display data and displays a screen with a Web browser.

  In Patent Document 1, data from a plant or the like to be monitored is periodically collected and stored, and a central processing unit having a data communication function for transmitting the stored data in an HTTP (Hypertext Transfer Protocol) format from a terminal. A technique is disclosed in which when a request for data to be monitored is made, data transmitted in HTTP format in response to the request is displayed on a terminal.

JP 2001-243152 A

  However, with the technique described in Patent Document 1, even when a failure occurs in the monitoring target device, the user cannot know the failure unless there is an inquiry from the terminal. In addition, when the inquiry interval from the terminal to the monitoring device is shortened using the above technique, the communication load increases proportionally. Further, even when there is no change in the state of the monitoring target device, there is a problem that the monitoring device is frequently accessed from the terminal and screen data is generated to increase the load.

  The present invention has been made to solve such a problem, and only when the status of the monitoring target device changes, the monitoring device acquires the status information of the monitoring target device and generates screen data. It is an object to provide a monitoring device, a monitoring method, and a program to be performed.

  In order to solve the above problems, a monitoring device according to the present invention is a monitoring device that connects a plurality of monitoring target devices to be monitored and a monitoring terminal that monitors the monitoring target device on a screen so that they can communicate with each other. A message receiving unit that receives a message in real time from the plurality of monitoring target devices and stores the received message in a storage unit, and the status of any of the monitoring target devices that is acquired from the storage unit When the message indicates a change in state, the analysis unit that analyzes whether or not the change indicates a change in state, collects state information indicating the change state from the monitoring target device that indicates the change. Generating state data to be displayed on the screen of the monitoring terminal based on the state information acquired from the storage unit and a collecting unit that stores the state information in the storage unit The generated screen data, characterized in that it comprises a communication control unit to be transmitted to the monitoring terminal.

Here, when the status changes, the monitoring target device transmits a message including the identification information of the monitoring target device to the monitoring device, and monitors the status information including the failure content in response to the acquisition request for the status information. To be sent to the device.
The monitoring terminal updates the screen on which the initial state information is displayed via the Web browser by receiving screen data from the monitoring device.

  According to the present invention, it is possible to provide a monitoring device, a monitoring method, and a program for generating the screen data while the monitoring device acquires the status information of the monitoring target device only when the state of the monitoring target device changes. It becomes possible.

It is a block diagram of the monitoring system which concerns on embodiment. It is a functional lineblock diagram of a monitoring device concerning an embodiment. It is a flowchart explaining operation | movement of a monitoring apparatus. It is a figure which shows the update method of the web screen in the apparatus monitoring system using the conventional web screen.

  An embodiment of a monitoring system including a monitoring device according to the present invention will be described with reference to FIGS. 1 to 3. Note that, in describing the embodiment, parts having similar configurations or functions are denoted by the same reference numerals, and redundant description thereof is omitted.

  FIG. 1 is a configuration diagram of a monitoring system 100 according to the present embodiment. As shown in FIG. 1, the monitoring system 100 includes a monitoring device 10, a plurality of monitoring target devices 30a to 30n (hereinafter, collectively referred to as “monitoring target devices 30”), and HMI terminals 20a to 20a. 20n (hereinafter collectively referred to as “HMI terminal 20”), and the monitoring target device 30 and the HMI terminal 20 are communicably connected to the monitoring device 10 via an IP (Internet Protocol) network 40. Has been.

  The monitoring device 10 includes a storage unit 11, a control unit 12, and a communication unit 13. The storage unit 11 includes a memory (not shown), an HDD (Hard Disk Drive), and the like, and stores various programs and information. The control unit 12 includes a CPU, a memory, and peripheral circuits thereof (not shown). The control unit 12 implements various functions by executing programs stored in the storage unit 11.

The communication unit 13 is a LAN (Local Area Network) adapter device, a modem, and the like. The communication unit 13 operates according to instructions from the control unit 12 and transmits / receives data to / from the HMI terminal 20 and the monitoring target device 30.
The IP network 40 is a LAN, a WAN (Wide Area Network), or the like, and is configured by one or both of wired and wireless, and realizes data communication. In the IP network 40, communication is performed according to the IP protocol.
The HMI terminal 10 is, for example, a PC (Personal Computer), and includes a terminal communication unit 22 that communicates with the monitoring device 10 and a display unit 21 that displays screen data received from the monitoring device 10 on a screen. . The display unit 21 displays a screen described in HTML (HyperText Markup Language) language via a Web browser.

  The monitoring target device 30 is, for example, a printer, a PC (Personal Computer), a server, a relay device (router, gateway, etc.), a modem, or the like. The monitoring target device 30 transmits a message 111 (see FIG. 2) to be described later to the monitoring device 10 every time these states change.

FIG. 2 is a functional configuration diagram of the monitoring apparatus 10 according to the embodiment.
The storage unit 11 of the monitoring device 10 stores a message 111, state information 112, socket communication information 113, and screen data 114. The message 111 and the status information 112 are stored in the storage unit 12 for each monitoring target device 30, and the socket communication information 113 and the screen data 114 are stored in the storage unit 12 for each HMI terminal 20, respectively.
The control unit 12 of the monitoring apparatus 10 includes a message reception unit 121, an analysis unit 122, a collection unit 123, and a communication control unit 124. Further, the communication control unit 124 includes a socket generation unit 125 and a notification unit 126.

  The message receiving unit 121 receives the message 111 from each of the plurality of monitoring target devices 30 in real time (sequentially). The message 111 is transmitted to the monitoring device 10 when a state change such as a failure occurs in the monitoring target device 30 or when a predetermined process is completed. Although a plurality of monitoring target devices 30 are provided, the transmission of the message 111 from the monitoring target device 30 to the monitoring device 10 is performed independently without depending on the message transmission of the other monitoring target devices 30. The message receiving unit 121 stores the received message 111 in the storage unit 11.

  Here, the reception of the message 111 in the message reception unit 121 and the processing in the analysis unit 122, the collection unit 123, or the communication control unit 124 can be performed in parallel, so-called multi-process processing. Therefore, the message receiving unit 121 can receive the message 111 transmitted by the monitoring target device 30 in real time.

  The monitoring device 10 and the monitoring target device 30 are connected via the IP network 40 as described above, and communication with the monitoring target device 30 is, for example, in SNMP (Simple Network Management Protocol). Communication is possible.

  The analysis unit 122 acquires the message 111 from the storage unit 11 and analyzes whether or not the content of the message 111 is the message 111 indicating a state change such as a failure of the monitoring target device 30. The contents of the message 111 indicating the state change include, for example, a device ID (Identification: identification information) of the monitoring target device 30 in which the state change has occurred, an occurrence time, a flag indicating a state change such as a failure, a failure location, and the like. . And in the case of the message which shows a state change, the analysis part 122 notifies that to the collection part 123 via CPU (not shown).

  Based on this notification, the collection unit 123 recollects information indicating the state change of the monitoring target device 30 (hereinafter referred to as “state information 112”). Here, immediately after the monitoring device 10 is activated, the collection unit 123 collects the initial state information 112 of the monitoring target device 30 as initial state information regardless of the presence or absence of the message 111 and stores it in the storage unit 11. Therefore, the collection of the status information 112 based on the message 111 corresponds to the second and subsequent collections. That is, the collection of the state information 112 based on the message 111 is a recollection.

  The collection unit 123 stores the re-collected state information 112 in the storage unit 11. The status information 112 is detailed information about a failure related to an abnormality such as a power supply or a fan, for a printer. Also, the degree of these failures can be classified as major, minor, critical, etc. from the viewpoint of the urgency of the failure. The detailed information on the failure may be included in the above-described message 111, and the detailed information on which it is difficult to specify the content of the failure may be included in the status information 112.

  In this way, the message reception unit 121 receives the message 111 by independently performing the processing process in which the message 111 is received from the monitoring target device 30 and the processing unit 123 in which the collection unit 123 collects the status information from the monitoring target device 30. The unit 121 can receive a message that does not belong to the monitoring target item such as a failure or a state change, for example, a message such as the end of a predetermined business process from the monitoring target device 30, and the collection unit 123 can receive the message receiving unit 121. However, it is possible to collect the status information 112 from the monitoring target device 30 in parallel even when processing for receiving a message other than the status change described above is performed.

  When the communication control unit 124 receives notification from the CPU (not shown) that the state information 112 has been stored in the storage unit 11 from the collection unit 123, the communication control unit 124 notifies the notification unit 126. The notification unit 126 is provided corresponding to each HMI terminal 20. The notification unit 126 generates screen data 114 to be displayed on the display unit 21 of the HMI terminal 20 based on the state information 112 stored in the storage unit 11. The screen data 114 is generated for each HMI terminal 20 and stored in the storage unit 11.

  As described above, since the initial state information of the monitoring target device 30 is stored in the storage unit 11 when the monitoring device 10 is activated, the notification unit 126 is in a state where the message 111 is not received from the monitoring target device 30. Based on this initial state information, initial screen data is generated and transmitted to the HMI terminal 20 in advance. When the message 111 is received, the control unit 12 generates only the screen data 114 based on the status information 112 of the corresponding monitoring target device 30 and transmits the screen data 114 to the HMI terminal 20. And the screen of the display part 21 in the HMI terminal 20 is updated by transmission of this screen data 114.

  Communication between the monitoring apparatus 10 and the HMI terminal 20 is performed by socket connection via the IP network 40. The socket generation unit 125 of the communication control unit 124 opens a TCP / IP (Transmission Control Protocol / Internet Protocol) transmission socket in order to transmit state information to the HMI terminal 20. The socket in the communication control unit 124 is communication information including the IP address and port number of the monitoring device 10 (hereinafter referred to as “socket communication information”). Opening a socket means creating a socket, securing a memory area for storing the generated socket communication information and the like in the storage unit 11, and requesting a connection from the terminal communication unit 21 of the HMI terminal 20 that is a data transmission destination ( Waiting for a notification of communication start).

  On the other hand, the terminal communication unit 22 of the HMI terminal 20 prepares to open a TCP / IP reception socket as preparation for receiving the status information 112 from the communication control unit 124 of the monitoring device 10. The establishment of a socket on the HMI terminal 20 side means that a socket is generated when the HMI terminal 20 is activated to display the status information 112 on the display unit 21 and a connection request is made to the monitoring device 10.

  When the monitoring device 10 receives a communication start notification from the HMI terminal 20, the monitoring device 10 determines whether to permit communication by checking the IP address, and returns a response to the HMI terminal 20. Here, if the monitoring device 10 returns a response permitting communication, the monitoring device 10 is connected to the HMI terminal 20 and the socket on the receiving side has been opened. When the opening of the socket is completed, the monitoring device 10 checks whether there is a transmission request. This transmission request is generated when, for example, the HMI terminal 20 is activated, and is a request for transmitting the status information 112 to the HMI terminal 20. The notification unit 126 associates itself with the HMI terminal 20 by referring to the socket communication information 113 stored in the storage unit 11.

  The display screen on the display unit 21 of the HMI terminal 20 has a function as a Web browser, and displays the status information 112 from the monitoring device 10. On a Web browser, for example, a Java (registered trademark) applet can be incorporated and used. By using a Java applet, dynamic expression that cannot be realized by a static Web page written in HTML becomes possible.

Next, the operation of the monitoring apparatus 10 will be described using the flowchart shown in FIG. FIG. 3 is a flowchart for explaining the operation of the monitoring apparatus 10.
First, when the monitoring device 10 is activated, the collection unit 123 acquires initial state information of the monitoring target device 30 and stores it in the storage unit 11. (Step S11). When the communication control unit 124 receives a notification from the control unit 12 that the initial state information is stored in the storage unit 11 from the collection unit 123, the communication control unit 124 notifies the notification unit 126. The notification unit 126 generates initial screen data based on the initial state information and transmits it to the HMI terminal 20 (step S12).

  Next, the CPU (not shown) in the control unit 12 of the monitoring apparatus 10 determines whether or not the message receiving unit 121 has received the message 111. When the message 111 is received (Yes in step S13), the collection is performed. To the unit 123. When the message 111 is not received (No in step S13), other processing is performed and the reception of the message 111 is awaited.

  The collection unit 123 acquires the message 111 received from the storage unit 11 and analyzes whether or not the message 111 indicates a state change. If the state change is indicated (Yes in step S14), the CPU ( Notification is made to the collection unit 123 via (not shown) (step S15). If it is not the message 111 indicating the state change (No in step S14), the process ends. Upon receiving the notification, the collection unit 123 recollects the state information 112 and stores it in the storage unit 11 (step S16).

  The collection unit 123 notifies the notification unit 126 that the state information 112 has been collected from the monitoring target device 30 via the CPU (not shown) (step S17). The notification unit 126 generates screen data 114 to be displayed on the HMI terminal 20 based on the state information 112 acquired from the storage unit 11 (step S18), and stores the screen data 114 in the storage unit 11. The notification unit 126 transmits the screen data 114 to the HMI terminal 20 (step S19). In the HMI terminal 20, screen data is displayed on the display unit 21 via a Web browser.

  As described above, since the monitoring device 10 updates the state information when the message is received from the monitoring target device 30, the screen data 114 is generated from the state change of the monitoring target device 30 and displayed on the display unit 21 of the HMI terminal 20. The time lag until the time is smaller than in the case where the status information of all the monitoring target devices 30 is periodically acquired.

Also, by receiving the message 111 from the monitoring target device 30 only when the state changes, the communication load and the monitoring device 10 of the monitoring device 10 can be compared with the case where the status information 112 of all the monitoring target devices 30 is periodically acquired. The load is reduced.
In addition, since the monitoring apparatus 10 acquires only the state information 112 of the monitoring target apparatus 30 whose state has changed, the communication amount per time can be reduced.

DESCRIPTION OF SYMBOLS 10 Monitoring apparatus 11 Memory | storage part 12 Control part 13 Communication part 20, 20a, 20n HMI terminal (monitoring terminal)
21, 21a, 21n Display unit 22, 22a, 22n Terminal communication unit 30, 30a, 30n Monitoring target device 40 IP network 100 Monitoring system 111 Message 112 Status information 113 Socket communication information
114 screen data 121 message receiving unit 122 analyzing unit 123 collecting unit 124 communication control unit 125 socket generating unit 126 notifying unit

Claims (4)

A monitoring device that connects a plurality of monitoring target devices to be monitored and a monitoring terminal that monitors the monitoring target device on a screen in a communicable manner,
A message receiving unit that receives messages in real time from the plurality of monitoring target devices, and stores the received messages in a storage unit;
An analysis unit that analyzes whether the message acquired from the storage unit indicates a change in a state of the monitoring target device;
When the message indicates a change in state, a collecting unit that collects state information indicating the state of change from the monitoring target device that indicates the change, and stores the collected state information in the storage unit;
A communication control unit that generates screen data to be displayed on the screen of the monitoring terminal based on the state information acquired from the storage unit, and transmits the generated screen data to the monitoring terminal;
A monitoring device comprising: The collection unit collects initial state information from the plurality of monitoring target devices when the monitoring device is activated,
The communication control unit generates initial screen data based on the initial state information, transmits the generated initial screen data to the monitoring terminal in advance, and the screen of the monitoring terminal is updated by the transmission of the screen data. The monitoring apparatus according to claim 1. A monitoring method executed by a monitoring device that connects a plurality of monitoring target devices to be monitored and a monitoring terminal that monitors the monitoring target device on a screen in a communicable manner,
Receiving a message in real time from the plurality of devices to be monitored, and storing the received message in a storage unit;
Analyzing whether the message acquired from the storage unit indicates a change in the state of the monitoring target device; and
When the message indicates a change in state, collecting state information indicating the state of change from the monitoring target device indicating the change, and storing the collected state information in the storage unit;
Generating screen data to be displayed on the screen of the monitoring terminal based on the state information acquired from the storage unit, and transmitting the generated screen data to the monitoring terminal;
A monitoring method comprising:   A program for causing a computer of the monitoring apparatus to execute the monitoring method according to claim 3.

Images