JPH02244397A - Information gathering system - Google Patents

Abstract

PURPOSE:To switch FEPs(alarm gathering device) in dual constitution preferentially and automatically in the case of an abnormal communication by processing data from the FEPs preferentially in station units and editing data to be sent to a host computer. CONSTITUTION:Alarm information 100 is transferred from the FEPs 20 and 21 to a host device together with added information 100 which indicates the state of the communication between the FEPs and stations. The host device 30, on the other hand, is provided with data 53 on a last editing result indicating last preferential FEPs of the respective stations. This host device 30 when receiving the alarm information 100 makes a judgement from the information 101 indicating the state of the communication between the FEPs and stations and the contents of the data 53 on the last editing result, determine whether or not information from both the FEPs 20 and 21 should be given priority in station units, and edits the data of the stations according to the determined priority. Consequently, even if there is abnormality between the FEPs and stations, alarm data which is inputted to the host device is prevented from being deficient.

Description

[Detailed Description of the Invention] [Summary] Regarding the information collection method of the upper level device (host computer) in the communication monitoring system, even in the case of a communication abnormality between the FEP and the station, the alarm data captured in the host computer is prevented from being lost. Alarm collection that collects alarms from multiple communication line component devices in each group with the aim of In a communication monitoring system made up of duplicate devices (FEPs), information indicating the communication status between the FEP stations is added to the alarm information transferred from each FEP to the higher-level device, and the higher-level device is given the previous priority for each station. The data of the previous editing result indicating the FEP is provided, and when the higher-level device receives the arm information, it updates both FEPs according to the information indicating the communication status between the FEP and the station and the contents of the data of the previous editing result. The alarm information is configured by prioritizing information from each station on a per-station basis and editing the alarm information for all stations.

[Industrial application field]

The present invention relates to an information collection method for a higher-level device (host computer) in a communication monitoring system, and in particular an alarm collection device (FEP) that collects alarm information from lower-level stations.
This relates to the information collection method when the system is duplicated.

As communication lines become more complex and sophisticated, highly reliable communication monitoring systems are required.As a result, monitoring systems with dual host computers, FEPs, etc. are increasingly being used. Ta.

When the FEPs are duplicated, data is transferred to the host computer from the two FEPs. In principle, this data is exactly the same data, but if there is an abnormality in communication between one FEP and a subordinate station, the data related to that station among the data from that FEP will be considered unreliable data. Become. Therefore, one FEP
If information is collected by capturing data from only one FEP and discarding data from the other FEP, there is a risk that alarm data will be lost.

Therefore, in a monitoring system consisting of duplicated FEPs, it is desired to be able to prevent loss of alarm data by editing the data from the two FEPs for each station according to the communication status between the FEP and the station. Ru.

(Prior Art) FIG. 5 shows an information collection method of a host computer in a conventional communication monitoring system having a dual FEP configuration.

In the conventional information collection method, as shown in FIG.
select only the data of and import it into the main processing section 5,
That is, data collection is always performed with priority given to one of the FEPs.

If an abnormality occurs in the communication with the priority FEP 4 due to a line abnormality such as line disconnection, the data input processing unit 2 detects this and sends the data to the FE that imports the data, as shown in FIG.
Switch P to the other side.

As a result, the priority FEP is switched from 4 to 3, and thereafter only the data of FEP 3 is taken into the main processing section 5 via the data input processing section 2.

(Problem B to be Solved by the Invention) The conventional information collection method shown in FIG. 5 can only deal with abnormalities in the line between the FEP and the host computer.

If there is a communication error between the currently prioritized FEP and a certain station below it, the data of that station will be transferred to the host computer even if the communication between the non-priority FEP and that station is normal. Therefore, the operator of the communication monitoring system cannot monitor that station.

FIG. 6 explains the problems in such a conventional information gathering method. In the figure, there are duplicated FEPs 3 and 4 above stations A to C, and when FEP 3 is in the non-priority state and FEP 4 is in the priority state, the priority FE
When the communication between P4 and B station becomes abnormal, data 6 transferred from non-priority FEP 3 to host computer 5 includes normal data of stations A to C. In the data transferred from the priority FEP 4 to the host computer 5, the data for stations A and C are normal, but the data for station B includes unreliable data. Therefore, the operator of the host computer 5 cannot know the data of the B station and cannot monitor only the B station, resulting in a significant loss of reliability of the communication monitoring system.

The present invention aims to solve the problems of the prior art, and in a communication monitoring system equipped with a dual-configuration FEP, data from the FEP is edited by performing priority processing on a station-by-station basis. Even in the case of a communication error between the FEP and the station, the alarm data captured in the host computer is prevented from being lost.
The objective is to provide an information collection method that makes it possible to take full advantage of the advantages of a redundant configuration.

[Means to solve the problem]

The present invention, whose basic configuration is shown in FIG. 1, relates to an information collection method for a host computer 30 in a communication monitoring system as shown in FIG.

In FIG. 2, a plurality of stations 10-12 collect alarms from a plurality of communication line configuration devices 98-98 for each group. Alarm collection device (FEP) 20.2
1 receives information from a plurality of stations 10-12, generates alarm information lOO for all rounds, and transfers it to the host device 30.

As shown in FIG. 1, the alarm information [100, FEP
- Information 101 indicating the communication status between stations is added and sent.

On the other hand, the host device 30 is provided with previous editing result data 53 indicating the previous priority FEP for each station.

When the host device 30 receives the alarm information 100, it makes a judgment based on the information 101 indicating the communication status between the FEP and the station and the content of the data 53 of the previous editing result, and sends both FEP2O, It is determined which information should be prioritized, and the data of each station is edited according to the priority order determined in this way.

Therefore, even if there is a communication abnormality between the FEP and the station, loss of alarm data taken into the host device can be prevented.

[Effect]

FIG. 2 shows a duplicated F E P (1) 20. F
This is an example of the configuration of a communication monitoring system that collects data to the host computer 3o via the EP(2) 21. Station A (10) has communication line configuration devices 91 to 93 below it, station B (11) has communication line configuration devices 94 to 98 below it, and station C (12) has communication line configuration devices 94 to 98 below it. Line configuration device 9? ~98. Duplicated F E P (1) 20. F E P (2) 21
receives the data from stations A to C and sends it to the host computer 3.
Transfer to oni.

Information collection in the system of FIG. 2 is performed as shown in FIG.

F E P (1) 20, F E P (2) 21
The data 100 transferred from the FEP to the host computer 30 consists of data 101 indicating whether the communication status between the FEP and each station is normal or abnormal, and data 102 to 104 of the A-C stations.

The host computer 30 that receives data from the FEP first determines which FEP the data was transferred from, and sends the data to F B pH) 20. F E P (2)
Buffers 50.5 provided corresponding to 21, respectively.
1.

Then, referring to the data 53 of the previous editing result, it is checked whether there is a station given priority in the previous editing in the data of the source FEP of the received data.

Here, the data 53 of the previous editing result is data indicating which FEP data was prioritized for each station when the data was transferred to the main processing last time.

As a result of referring to the 4 data 53 of the previous editing results, if there is a station that was prioritized last time, check the data 101 indicating the communication status between the FEP and the station, and check that there is no communication abnormality with that station. Find out if.

As a result, if there is no communication error, the data of that FEP is given priority this time as well. If there is a communication error, the data of the other FEP is given priority. Furthermore, for stations that were not prioritized in the previous edition, the data of the other FEP is prioritized in the current edition as well.

According to the above method, it is decided which FEP to give priority to for all stations, and the data to be transferred to the main processing section this time is edited in the data editing buffer 52.

Then, the current editing result is recorded in the previous editing result data 53.

By using this technology together with the conventional technology shown in FIG. 5, when communication between the FEP and the host computer is normal, it becomes possible to prioritize data from the FEP on a station-by-station basis, which is better than the conventional technology. Be able to solve problems.

〔Example〕

FIG. 3 shows a system configuration in an embodiment of the present invention, in which a communication line is connected to a station A (10) and a station B (11).

A C station (12) is provided, and an FEP (l120.FEP(2) 21) is provided to collect these data. 30 and 31.

FIG. 4 shows a specific flow of processing in the system shown in FIG.

Now, as shown in FIG. 4, the host computer 30
When data from E pH) 20 is received, this data is stored in a buffer 50 for accommodating data from F E P (1) 20 .

As a result of searching the FEP-host computer communication error table 54, it was found that if
When it is displayed that a communication abnormality has occurred between the EP(2) 21 and the host computer, the received data is transferred as is to the main processing section.

If the occurrence of a communication error is not displayed in the FEP-host computer communication error table 54,
The data 53 of the previous editing result is examined.

As a result of examining the data 53 of the previous editing result, station A (11)
and B station (12) are supposed to give priority to the data of FEP (1120).Therefore, the 1st word of the received data is checked.The 1st word displays the communication status with each station.A Communication with the station is being performed normally, so we will treat FEP (z12Q data with priority) this time as well.

However, communication with station B has become abnormal. FEP (2
) 21, it is found that communication is occurring normally between the FEP (2) 21 and station B, so the data 5 of the previous editing result is
Set the data of B station in 3 to “2”, and B station uses FEP (
2) Prioritize 21. If the communication between the FEP (2121 and B station is also abnormal), the data 53 of the previous editing result is left as is.

In this way, it is determined for each station which FEP to give priority to. As a result, station A is "l".

The B station is r2J, and the C station is "2". Since this information has already been manually entered into the data 53 of the previous editing result, the data is edited based on this information.

In the station word position table 55, the data of station A is 2 to lO.
Since it is specified that the data is a word, the data from the FEP(1) 20 is set in this position of the data editing buffer 52. Thereafter, the data of the B station and the C station are set in the data editing buffer 52 in the same manner.

When editing of data is completed, the data is passed to the main processing section and waits for information from the next FEP.

〔Effect of the invention〕

As explained above, according to the present invention, the duplicated FE
In a communication monitoring system with P, F in a redundant configuration
Since the data from the EP is prioritized on a station-by-station basis and the data sent to the host computer is edited, the F
Even in the case of a communication abnormality between an EP and its subordinate station, the priority FEP is automatically switched, making it possible to take full advantage of the advantages of the duplex configuration.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the basic configuration of the present invention, FIG. 2 is a diagram illustrating the configuration of a communication monitoring system, FIG. 3 is a diagram showing the system configuration in an embodiment of the present invention, and FIG. Figure 3 shows the specific process flow in the system shown in Figure 5. Figure 5 shows the information collection method in the conventional communication monitoring system. Figure 6 explains the problems with the conventional information collection method. It is a diagram. 98-98-Communication line configuration device lO-12-A-C station 20.21-m-Alarm collection device (FEP) 30.3
1-・Buffer for data from host computer 50.51-FEP 52-
Data editing buffer 53 - Previous editing result data 54 - FEP-host computer communication error table 55 - Station word position table 100 - Data transferred from FEP to host computer 101 - FEP-station communication status 102 ~104-A-C station information

Claims (1)

[Claims] A plurality of stations (10 to 1
2) receives alarm information for all stations (10
In a communication monitoring system consisting of redundant alarm collection devices (hereinafter referred to as FEP) (20, 21) that generate 0) and transfer them to the higher-level device (30), each FBP (20, 21) generates a Information (101) indicating the communication status between the FEP and the station is added to the alarm information (100) to be transferred to the host, and data ( 53), and when the host device (30) receives the alarm information (100), the host device (30), when receiving the alarm information (100), sends the following information according to the information (101) indicating the communication status between the FEP and the station and the content of the previous editing result data (53). Both FEPs (20, 21)
This information collection method is characterized by processing information from stations on a station-by-station basis with priority and editing alarm information for all stations.