JP2511305B2 - Information collection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] Regarding an information collecting method of a host device (host computer) in a communication monitoring system, even if a communication error occurs between an FEP and a station, the alarm data taken in by the host computer is not lost. The alarm collection that collects the alarms from multiple communication line constituent devices for each group, receives the information from multiple stations, generates the alarm information for all stations, and transfers it to the host device. In a communication monitoring system in which the device (FEP) is duplicated, the information indicating the communication state between the FEP-station is added to the alarm information transferred from each FEP to the host device, and the previous device of each station is added to the host device. Data of the previous editing result indicating the priority FEP is provided, and when the host device receives the alarm information, information indicating the communication state between the FEP-station and It is configured by prioritizing the information from both FEPs on a station-by-station basis and editing the alarm information for all stations according to the content of the data of the previous editing result.

[Industrial applications]

The present invention relates to an information collecting method of a host device (host computer) in a communication monitoring system, and in particular, an alarm collecting device (FEP) for collecting alarm information from a lower station.
The present invention relates to an information collection method in the case of duplication.

Along with the complexity and sophistication of communication lines, a highly reliable communication monitoring system has been required, and as a result, a monitoring system having a dual configuration of a host computer, FEP, etc. has come into wide use.

When the FEPs are duplicated, data is transferred from the two FEPs to the host computer. This data is basically the same data,
If the communication between the FEP and a station below it is abnormal, the data related to that station among the data from that FEP will be unreliable data. Therefore, if the data of only one FEP is taken in and the data of the other FEP is discarded and information is collected, the alarm data may be lost.

Therefore, it is required to prevent alarm data loss by editing the data from two FEPs on a station-by-station basis according to the communication status between FEPs in a monitoring system consisting of duplicated FEPs. It

[Conventional technology]

FIG. 5 shows the information collection system of the host computer in the communication monitoring system of the conventional dual FEP configuration.

In the conventional information gathering method, as shown in FIG. 5, the host computer 1 selects only the data of one FEP4 of the duplicated FEPs 3 and 4 in the data input processing unit 2 thereof, and the main processing unit thereof is selected. Take in 5. That is, data collection is always performed by giving priority to one of the FEPs.

If an abnormality occurs in the communication with the priority FEP 4 due to a line abnormality such as a line disconnection, the data input processing unit 2 detects this and switches the FEP for fetching data to the other FEP 4, as shown in FIG.

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 unit 5 via the data input processing unit 2.

[Problems to be Solved by the Invention]

The conventional information gathering method shown in FIG. 5 can only deal with the line abnormality between the FEP and the host computer.

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

FIG. 6 illustrates the problems in such a conventional information collecting method. In the figure, there are duplicated FEPs 3 and 4 above stations A to C, and FEP3 is non-priority, FEP
If communication between the priority FEP 4 and station B becomes abnormal when 4 is in the priority state, the data 6 transferred from the non-priority FEP 3 to the host computer 5 includes stations A to C. Normal data is included, whereas in the data 7 transferred from the priority FEP 4 to the host computer 5, A
Although the data of the station and the station C are normal, the data of the 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, and the reliability of the communication monitoring system is significantly impaired.

The present invention is intended to solve such a problem of the conventional technique, in a communication monitoring system including a duplexed FEP, by editing the data from the FEP by performing priority processing in units of stations, Provides an information collection method that can maximize the advantages of the redundant configuration by preventing the alarm data captured by the host computer from being lost even in the case of FEP-station communication failure. Is intended.

[Means for solving the problem]

The present invention, whose basic configuration is shown in FIG. 1, relates to an information collecting system of a host device (host computer) 30 in a communication monitoring system as shown in FIG.

In Figure 2, a plurality of stations 10-12 to collect alarms from a plurality of communication lines constituting device 9 ₁ to 9 ₈ for each group. The alarm collection device (FEP) 20,21 is used for multiple stations 10-
The information from 12 is received, the alarm information 100 for all stations is generated and transferred to the host device 30.

As shown in FIG. 1, each FEP 20, 21 is connected to the host device 30.
Information 101 indicating the communication state between the FEP and the station is added to the alarm information 100 to be transmitted to and sent.

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

When the host device 30 receives the alarm information 100, the host device 30 makes a determination according to the information 101 indicating the communication state between the FEP and the station and the content of the data 53 of the previous editing result, and transmits the information for each station
It decides whether the information from FEPs 20 and 21 should be prioritized, and edits the data of each station according to the priority thus decided.

Therefore, even if there is a communication error between the FEP and the station, it is possible to prevent the alarm data captured by the host device from being lost.

[Operation] FIG. 2 exemplifies the configuration of a communication monitoring system that collects data in the host computer 30 via the duplicated FEP (1) 20 and FEP (2) 21. Station A (10) has communication line components 9 _{1 to} 9 ₃ below it, and station B (11)
Has communication line components 9 _{4 to} 9 ₆ below it, and station C (1
2) has communication line components 9 _{7 to} 9 ₈ below it. Redundant FEP (1) 20 and FEP (2) 21 are station A to C
The station data is received and transferred to the host computer 30.

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

FEP (1) 20, FEP (2) 21 to host computer 30
The data 100 transferred to, is data 101 indicating the normal or abnormal communication state between the FEP and each station,
It is composed of data 102 to 104 of stations A to C.

The host computer 30 that received the data from the FEP
First, the FEP (1) 20, FEP (2) 21 is stored in the buffers 50 and 51 provided to correspond to the FEP (1) 20 and FEP (2) 21, respectively.

Then, referring to the data 53 of the previous editing result, it is checked whether or not there is a station prioritized 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 is prioritized for each station when the data is transferred to the main processing last time.

As a result of referring to the data 53 of the previous editing result, if there is a station that was prioritized last time, check the data 101 indicating the communication state between the FEP and the station, and see if there is a communication error with that station. Find out.

If there is no communication error as a result, the FEP data will be prioritized this time. If there is a communication error, the other FEP data will be prioritized. For stations that were not prioritized in the previous edit, the other FEP data will be prioritized in this edit.

According to the above method, which FEP is to be prioritized for all stations is determined, and the data to be transferred to the main processing unit this time is edited in the data editing buffer 52. Then, the edited result of this time is recorded in the data 53 of the edited result of the previous time.

By using this technique together with the conventional technique shown in FIG. 5, when the communication between the FEP and the host computer is normal, the data from the FEP can be preferentially processed for each station. You will be able to solve problems.

〔Example〕

FIG. 3 shows a system configuration according to an embodiment of the present invention. Stations A (10), B (11) and C (12) are connected to the communication line.
Is provided with the FEP to collect these data
(1) 20, FEP (2) 21 are provided, and FPE (1) 20,
The data collected by FEP (2) 21 is the host computer 30.
And sent to 31.

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

Now, as shown in FIG. 4, the host computer 30 is FE
When receiving data from P (1) 20, this data is F
It is stored in the buffer 50 for accommodating the data from the EP (1) 20.

As a result of searching the FEP-host computer communication error table 54, if the FEP
(2) When the occurrence of communication error between 21 and the host computer is displayed, the received data is transferred to the main processing unit as it is.

If the communication error occurrence is not displayed in the FEP-host computer communication error table 54, the data 53 of the previous editing result is checked. Previous edit result data
As a result of checking 53, station A (11) and station B (12) are FEP (1) 2
Data of 0 is supposed to be prioritized. Then, check the first word of the received data. The state of communication with each station is displayed in the first word. Since the communication with the A station is normally performed, the data of FEP (1) 20 is preferentially handled this time as well.

However, communication with station B is abnormal. FEP
(2) Examining the first word of the buffer 51 accommodating the data from 21, the FEP (2) 21 and station B are communicating normally, so the data 53 of the previous edited result The data of station B is set to "2", and station B gives priority to FEP (2) 21. If the communication between the FEP (2) 21 and the B station is abnormal, the data 53 of the previous editing result is left as it is.

In this way, which FEP has priority is determined for each station. As a result, station A is "1", station B is "2", C
The station is "2". Since this information has already been input in the data 53 of the previous editing result, the data is edited based on this information.

Since the station word position table 55 specifies that the data of station A is 2 to 10 words, the data from the FEP (1) 20 is set in this position of the data editing buffer 52. In the same manner, B is stored in the data editing buffer 52.
Set data for station and station C.

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

〔The invention's effect〕

As explained above, according to the present invention, the duplexed FE
In communication monitoring system with P, FEP with duplex configuration
Since the priority data is processed for each station and the data sent to the host computer is edited, even if there is a communication error between the FEP and its subordinate stations, the priority FEP can be switched automatically. It will be possible to take full advantage of the duplex configuration.

[Brief description of drawings]

FIG. 1 is a diagram showing a principle configuration of the present invention, FIG. 2 is a diagram illustrating a configuration of a communication monitoring system, FIG. 3 is a diagram showing a system configuration in an embodiment of the present invention, and FIG. 3 is a diagram showing a specific processing flow in the system shown in FIG. 3, FIG. 5 is a diagram showing an information collecting method in a conventional communication monitoring system, and FIG. 6 is a description of problems in the conventional information collecting method. It is a figure. 9 _{1 to} 9 ₈ ...... Communication line configuration device 10 to 12 …… A to C stations 20,21 …… Alarm collector (FEP) 30,31 …… Host computer 50,51 …… Data buffer from FEP 52 …… Data editing buffer 53 …… Data of previous edit 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 between 102-104 …… A-C station information

Claims (1)

(57) [Claims] 1. A plurality of stations (10 to 10) for collecting alarms from a plurality of communication line constituent devices (9 _{1 to} 9 ₈ ) for each group.
12) and receives alarm information for all stations (10
In a communication monitoring system in which an alarm collecting device (hereinafter referred to as FEP) (20, 21) that generates (0) and transfers it to the upper device (30) is duplicated, each FEP (20, 21) to the upper device (30) The alarm information (100) to be transferred to the
1) is added, and the upper device (30) is provided with the data (53) of the previous editing result indicating the prioritized FEP for each station last time, and the upper device (30) receives the alarm information (100) when it receives the alarm information (100). Depending on the information indicating the communication status between the FEP and the station (101) and the content of the data (53) of the previous editing result, both FEPs (2
Information collection method characterized by editing the alarm information for all stations by prioritizing the information from each station (0, 21).