JPH0448841A - Digital signal transmission fault monitoring device - Google Patents

Abstract

PURPOSE:To easily discriminate the order of occurrence of a device fault and to analyze the device fault in a short time by adding TS (time) information to alarm information from plural digital signal transmitter-receivers and allowing an alarm monitor device to rearrange the alarm information in time series bases on the TS information and to record it. CONSTITUTION:TS addition devices 41, 42-4N are inserted respectively between digital signal transmitter-receivers 31, 32-3N and alarm transmitters 21, 22,-2N. The TS addition device adds TS information such as date and time to alarm information outputted respectively from the digital signal transmitter-receiver and outputs the result to the alarm transmitter. Upon the receipt of the alarm information from the TS addition device, each transmitter latches the alarm information till the alarm monitor 1 reads the information. The alarm monitor 1 reads the information of the alarm transmitters 21, 22-2N in this order at a polling period and various information outputted from the digital signal transmitter-receiver is rearranged and recorded in time series, that is, in the order of occurrence of various alarm information based on the added TS information.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for monitoring equipment failure during digital signal transmission.
The present invention relates to a device that records various alarm information and performs device failure search and determination.

[Conventional technology]

FIG. 2 is a configuration diagram for explaining a conventional digital signal transmission failure monitoring device of this type. In the figure, 1 is an alarm monitoring device, 28.2□ and 2 are alarm transmitting devices, and 38.3□ and 3N are digital signal transceivers.

In this configuration, the alarm transmitting device 21.2□~2N
receives and holds various alarm information output from the digital signal transceivers 3I, 3□, to 3N, such as frame synchronization loss, clock synchronization loss, input signal loss, device failure, component module failure, etc. The alarm monitoring device 1 performs polling (sequentially reading various alarm information held by the alarm transmitting devices 2I, 2□, ~2N).
I went to read various alarm information at the interval of 5 o'clock on the date.

By recording time information such as minutes and 9 seconds in the order in which it is read, and by analyzing the alarm information records, it is possible to identify where equipment failures occur.

[Problem to be solved by the invention]

With the conventional monitoring devices mentioned above, time information is added to the various alarm information held in each alarm transmitting device at the time the alarm monitoring device reads it at the polling cycle, which prevents device failures from occurring. It is difficult to discern the order in which they were performed.

For example, the alarm monitoring device reads and records alarm information from each alarm transmitting device at a polling cycle in the order of digital signal transceivers 31+31+ to 3N in FIG. 2. Therefore, in this case, alarm information is recorded in the order of digital signal transceivers 31+31+ to 3N, as shown in FIG.

Therefore, among the recorded alarm information, it is difficult to know which alarm information is generated first and which alarm information is generated later, and there is a problem in that it may take a lot of time to analyze equipment failures.

SUMMARY OF THE INVENTION An object of the present invention is to provide a digital signal transmission failure monitoring device that makes it possible to analyze equipment failures in a short time.

[Means to solve the problem]

The monitoring device of the present invention includes a plurality of digital signal transmitting/receiving devices that output alarm information based on equipment failure, a time information adding device that adds time information (TS: TIME STAMP) to the alarm information, and a time information adding device that adds time stamp (TS) information to the alarm information. an alarm transmitting device that receives and retains alarm information; and an alarm monitoring device that sequentially reads the alarm information retained in the alarm transmitting device and sorts and records the alarm information in chronological order based on TS information. It is equipped with

Note that the alarm transmitting device is configured to hold alarm information with TS information added until the alarm monitoring device reads the alarm information.

[Effect]

According to the present invention, TS information is added to alarm information from a plurality of digital signal transmitting/receiving devices, and the alarm monitoring device rearranges the alarm information in chronological order based on this TS information. It becomes possible to distinguish between

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a digital signal transmission failure monitoring device according to the present invention. In the figure, ■ indicates an alarm monitoring device, 2. ．．
2□, ~2N are alarm transmitting devices, 33, 3□, ~3N
is a digital signal transmitting and receiving device. and the digital signal transmitting/receiving device 3°38. Between ~3N and alarm transmitter 2=, '2t, and ~2N, there is a TS addition device 4, respectively.
I, 4□.

~4N is inserted.

The TS adding devices 41.4□ and ~4.4 add TS information such as date and hour to the alarm information output from the digital signal transmitting and receiving devices 3, 13□ and ~3N, respectively.
Each alarm transmitter sends alarm information with this TS information added! 2. ,2□.

~2N.

According to this configuration, for example, the digital signal transmitting/receiving device 3
□, 3. ．． 3. Assume that failures occur in the following order, and various alarm information is output to notify this failure. Each type of alarm information is sent to the TS addition device 42.4. ．． 4. Here, TS information such as the date and hour is added to the alarm information, and the alarm information is sent to the alarm transmitting devices 2□, 2. ．． 2. is output to.

Each alarm device device 2□, 2. ,2. When receiving alarm information from the TS adding devices 42.4N and 41, the alarm information input from time to time is held until the alarm monitoring device 1 comes to read it. The alarm monitoring device 1 is
The alarm transmitting devices 21, 2□, 2N are read in order in the polling cycle, but the digital signal transmitting and receiving devices 3-. 32
．． ~ Various alarm information output by 3N is attached to T
Based on the S information, various alarm information is rearranged and recorded in chronological order, that is, in the order in which it occurred. In this example, the digital signal transmitting/receiving device 3□.

3N and 31 are rearranged and recorded in the order of the various alarm information that occurred.

Therefore, in an alarm monitoring device, by using the TS information added to various alarm information caused by device failures and sorting them in chronological order, it becomes easy to distinguish the order of occurrence of device failures, and analyze the device failures. can be done in a short time.

〔Effect of the invention〕

As explained above, the present invention adds TS information to alarm information from a plurality of digital signal transmitting/receiving devices, and the alarm monitoring device records the alarm information in chronological order based on this TS information. Therefore, the order in which device failures occur can be easily distinguished, and device failure analysis can be carried out in a short time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a digital signal transmission failure monitoring device of the present invention, FIG. 2 is a block diagram of a conventional digital signal transmission failure monitoring device, and FIG. 3 is a diagram of polling from the first to the Nth alarm transmitting devices. FIG. 1... Alarm monitoring device, 28.2□, ~2N...
alarm transmitter, 3. ．． 3. , ~3N...Digital signal transmitting/receiving device, 41.4g, ~4N...TS (time information) adding device. Figure 1 Figure 2

Claims (1)

[Claims] 1. A plurality of digital signal transmitting/receiving devices that output alarm information based on equipment failure during digital signal transmission, and a device provided corresponding to each digital signal transmitting/receiving device and adding time information to the alarm information. a time information adding device; an alarm transmitting device provided corresponding to each time information adding device to receive and hold alarm information with time information added; and an alarm transmitting device connected to each of the alarm transmitting devices to transmit each alarm. A digital signal transmission failure monitoring device comprising: an alarm monitoring device that sequentially reads alarm information held in the device, rearranges and records the alarm information in chronological order based on time information. 2. The digital signal transmission failure monitoring device according to claim 1, wherein the alarm transmitting device is configured to hold alarm information with time information added until the alarm monitoring device reads the alarm information.