JPH07250046A - Monitoring system - Google Patents

Abstract

PURPOSE:To improve the reliability of a monitor terminal by requesting a monitored terminal to send again the lost terminal operation information to complement this information when the loss of the terminal operation information is detected. CONSTITUTION:When the loss of the terminal operation information is detected, a request G-1 is given to an intra-terminal log control part 13 of a monitored terminal 1 to acquire the terminal operation information. Then the loss information G-4 is received from the part 13, and a request R-8 is given to a log control part 23 to store the terminal operation information. The part 23 is provided with an interface to a loss discrimination information check part 22 and stores the terminal operation information in a data base DB against the request R-8 received from the part 22. In such a constitution, the terminal operation information which is not notified to a monitor terminal by some reason is complemented at the data base of the monitor terminal. Thus the reliability is improved for the monitor terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance system, and more particularly to a surveillance system in which a surveillance terminal monitors a monitored terminal based on terminal operation information.

With the advanced information society in recent years, companies are also constructing communication systems for utilizing information resources.

[0003] Among them, there is a sophisticated technique for collectively managing various terminal devices (hereinafter, simply referred to as terminals) that constitute a communication system and maintaining a high reliability by a monitoring terminal that constantly monitors the system status. The monitoring terminal is required to store all the terminal operation information of the monitored terminal in a recording unit such as a database.

[0004]

2. Description of the Related Art In such a communication system, that is, a monitoring system, conventionally, the terminal to be monitored informs irregularly about acquisition, recording, and storage of the terminal operation information generated in the terminal to be monitored. Only the information to be received was received and recorded and stored in a recording unit such as a database inside the monitoring terminal.

Therefore, (1) when the monitoring terminal cannot monitor the monitored terminal for some reason,
(2) When the monitored terminal becomes unmonitorable for some reason, (3) When the monitored path becomes unmonitorable due to communication failure for some reason, (4) Monitoring terminal and monitored terminal When communication traffic increases in the transmission path between the terminals, the terminal operation information generated in each case is not stored in the recording unit such as the database inside the monitoring terminal because it is not notified to the monitoring terminal, which causes a problem that it is lost. Was there.

Therefore, an object of the present invention is to supplement missing terminal operation information in the monitoring terminal in a monitoring system in which the monitoring terminal monitors the monitored terminal based on the terminal operation information.

[0007]

In order to achieve the above object, in the monitoring system according to the present invention, the monitored terminal attaches the missing identification information to the terminal operation information and sends it to the monitoring terminal, and the monitoring terminal When the missing identification information is monitored and the missing terminal operation information is detected, the monitored terminal is requested to retransmit the missing terminal operation information, and the terminal operation information is complemented.

Further, as the above-mentioned missing identification information, the monitored terminal and the monitoring terminal can use the sequence number or the date and time data.

[0009]

According to the present invention, the monitored terminal adds the missing identification information such as the sequence number and the date / time data to the terminal operation information and notifies the terminal.

The monitoring terminal determines whether or not the terminal operation information is missing based on the missing identification information in the received terminal operation information. If there is missing terminal operation information, the missing terminal operation information is recorded. An acquisition request is made to the monitored terminal.

Therefore, the terminal operation information which has not been notified to the monitoring terminal for some reason can be supplemented in the database of the monitoring terminal thereafter.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a monitoring system according to the present invention, where 1 is a monitored terminal and 2 is a monitoring terminal connected to this monitored terminal 1 via a transmission line. ing.

Each of the monitored terminal 1 and the monitored terminal 2 has the following configuration.

[ Monitored terminal 1]: <Terminal operation information management unit 11> This is monitored by receiving a notification (R−) of terminal operation information issued from the hard register HR in the monitored terminal 2 at irregular intervals. It has a function of issuing to the terminal 2.

Further, the interface with the missing identification information management unit 12 described below is performed, and the missing identification result (R-
) Is acquired and added to the terminal operation information.

Further, a storage request (R-) for the terminal operation information is issued to the in-terminal log management section 13.

<Missing Identification Information Management Unit 12> This manages the missing identification information in the monitored terminal 1 and is missing in response to the identification information acquisition request (R-) from the terminal operation information management unit 11. The identification information is notified to the terminal operation information management unit 11.

Further, in response to the status acquisition request (P-) from the polling control unit 14 described below, the current missing identification result (P-
-) Has the function of notifying.

<In-Terminal Log Management Unit 13> This is a request for storing terminal operation information from the terminal operation information management unit 11 (R-
) Is received, the terminal operation information is stored (R−) in the in-terminal log table LT, and the range of the table LT is designated and searched.

Also, a missing information acquisition request (G-) from the missing identification information checking unit 22 of the following monitoring terminal 2 is received via the communication management unit CC1, and the corresponding information is searched for in the device log table LT. / Acquisition (G-) is performed, and the missing information (G-) is notified to the missing identification information check unit 22 via the communication management unit CC1.

<Polling controller 14> This has an interface with the missing identification information manager 12 and has a function of editing / issuing polling information in response to a polling request (P-). In addition, the current missing identification result is sent to the missing identification information management unit 12 by the status acquisition request (P-).
(P-) is acquired, and the polling control unit 14 notifies the monitoring terminal 2 of the polling result (P-) via the communication management unit CC1.

[Monitoring Terminal 2]: <System Operation Information Management Unit 21> This is the monitored terminal 1
In order to check the presence or absence of the missing terminal operation information by receiving the terminal operation information sent from the management section CC1 and CC2 issued from the device and providing an interface with the missing identification information check section 22. , Check section 2
A check request (R-) is given to the second item.

<Missing identification information check unit 22>
It has the following functions. (1) It has a missing identification information management table (not shown), and records missing identification information of each monitored terminal 1.

(2) Check requests (R-) from the system operation information management unit 21 and the polling control unit 14 respectively.
) And (P-), the missing identification information is compared with the information in the missing identification information management unit table to determine whether there is missing information.

(3) When there is no missing information, the log management unit 23 is notified of a storage request (R-) for storing the terminal operation information, and when there is missing information, the monitored terminal 1 Acquisition request for acquiring the missing terminal operation information via the management units CC1 and CC2 to the in-terminal log management unit 13 in
Notify (G-).

(4) In-terminal log management unit 1 in the monitored terminal 1
The missing information (G-) notified by the management unit CC1, C
It receives via C2 and notifies the log management unit 23 of a storage request (R−) for storing the terminal operation information.

<Log management unit 23> This is provided with an interface with the missing identification information checking unit 22, and requests the storage of terminal operation information from the missing identification information checking unit 22 (R-
), The terminal operation information is stored in the database DB
(R−)

<Polling control unit 24> This is to issue a polling request (P-) to the monitored terminal 1 via the management units CC1 and CC2 at regular intervals, and to obtain the polling result (P-
) Is received. In addition, an interface with the missing identification information check unit 22 is provided, and in order to check the missing identification information added to the received polling result (P−), a check request (P− ) Is notified.

FIG. 2 shows a missing information complementing operation by polling which is executed at regular intervals between the monitoring terminal 2 and the monitored terminal 1 in the embodiment shown in FIG. 1, and in this operation, FIG. And various normal / abnormal cases shown in FIG. 4 may occur.

The operation of the embodiment of the present invention shown in FIG. 1 will be described below for each case with reference to these figures.

First, the polling controller 24 of the monitoring terminal 2
To the monitored terminal 1 via the communication management units CC2 and CC1
A polling information request is issued to the polling control unit 14 (FIGS. 2 and 3).

The polling controller 14 of the monitored terminal 1
The polling information (result P-) is issued to the monitoring terminal 2 (FIGS. 2 and 3).

In this case, in the monitored terminal 1, the terminal operation information management unit 11 causes the missing identification information management unit 12 to provide a sequence number as missing identification information to be added to, for example, the terminal operation information # 1 issued by the hard register HR. Request to (R
-) Then, the missing identification information managing unit 12 may, for example, detect the sequence number NO. 1 is notified, so that the terminal operation information management unit 11 determines the sequence number NO. 1 is added to the terminal operation information # 1 and sent to the monitoring terminal 2 from the communication management unit CC1.

At the same time, in the monitored terminal 1, a storage request (R-
) Is given, and the terminal log management unit 13 stores the terminal operation information # 1 to which the sequence number NO1 is added in the in-terminal log table LT.

In the monitoring terminal 2, the sequence number No. of the terminal operation information received by the missing identification information check unit 22. 1
And the built-in missing identification information management table are compared to check whether there is any missing terminal operation information (FIGS. 2, 3 and 4 (a)). The terminal operation information # 1 is recorded in the database DB via the log management unit 23 (case 1 in FIGS. 3 and 4 (a)).

After that, if a failure occurs in the monitored terminal 1, the sequence operation number # 2 is added to the terminal operation information # 2 edited in the monitored terminal 1 as described above. 2 is added and issued to the monitoring terminal 2. In addition, the terminal log table LT
Recorded in.

However, if the terminal operation information is not notified to the monitoring terminal 2 for some reason, it is not recorded in the database in the monitoring terminal 2 (case 2 in FIGS. 3 and 4 (b)).

Therefore, thereafter, the sequence number NO. Is added to the terminal operation information # 3 edited in the monitored terminal 1. 3 is added and issued to the monitoring terminal 2 and recorded in the in-terminal log table. When the monitoring terminal 2 checks the sequence number from the received terminal operation information, the above sequence number NO3 is its own missing identification. Since the sequence number stored in the information management table remains NO1, the missing identification information check unit 22 determines that the terminal operation information is missing and stores the terminal operation information # 3 in the database D.
On the other hand, the sequence number NO. In order to acquire the second terminal operation information # 2, the missing identification information acquisition request (FIGS. 2 and 3) is issued (FIG. 3).
And case 3 in Figure 4 (c).

In the monitored terminal 1 which has received the acquisition request from the monitoring terminal 2, the in-terminal log management section 13 retrieves the terminal operation information # 2 from the in-terminal log table LT and sends the sequence number NO. 2 is added and the missing identification information (FIGS. 2 and 3) is issued.

Therefore, the monitoring terminal 2 receives the terminal operation information # 2 and complements the database DB in the monitoring terminal 2 (FIGS. 2 and 3) (Case 4 in FIGS. 3 and 4D).

In the above embodiment, the sequence number is used to identify the lack of information, but instead of this, the date and time is also stored in the log table LT to use the date and time data. The same effect can be obtained.

[0042]

As described above, according to the monitoring system of the present invention, the monitored terminal attaches the missing identification information to the terminal operation information and sends it to the monitoring terminal, and the monitoring terminal monitors the missing identification information. Then, when the missing terminal operation information is detected, the monitoring terminal is configured to complement the terminal operation information by requesting the monitored terminal to retransmit the missing terminal operation information. Since the terminal operation information that has not been collected is supplemented in the database of the monitoring terminal, it greatly contributes to the improvement of the reliability of the monitoring terminal and the maintenance and operation support of the communication system.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a monitoring system according to the present invention.

FIG. 2 is a sequence diagram for explaining a missing information complementing operation of the embodiment of the monitoring system according to the present invention.

FIG. 3 is a sequence diagram showing an operation example when a failure occurs in the monitored terminal in the embodiment of the monitoring system according to the present invention.

FIG. 4 is a diagram for explaining a missing information complementing method when a failure occurs in a monitored terminal.

[Explanation of symbols]

 1 Monitored Terminal 11 Terminal Operation Information Management Section 12 Missing Identification Information Management Section 13 Terminal Log Management Section 14 Polling Control Section HT Hard Register LT Terminal Log Table 2 Monitoring Terminal 21 System Operation Information Management Section 22 Missing Identification Information Check Section 23 Log management unit 24 Polling control unit DB database In the figures, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Yoneyama 3-9-18 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Fujitsu Communication Systems Limited

Claims (3)

[Claims] 1. A monitoring system in which a monitoring terminal monitors a monitored terminal based on terminal operation information, the monitored terminal attaches missing identification information to the terminal operation information and sends the missing information to the monitoring terminal, and the monitoring terminal receives the missing information. A monitoring system, characterized in that when identification information is monitored and missing terminal operation information is detected, the monitored terminal is requested to retransmit the missing terminal operation information to supplement the terminal operation information. 2. The monitoring system according to claim 1, wherein the missing identification information is a sequence number. 3. The monitoring system according to claim 1, wherein the missing identification information is date and time data.