JPH088536B2 - Monitoring device input information aggregation method - Google Patents

Description

The present invention relates to an input information gathering system for a monitoring device, and
The present invention relates to a system for collecting input information of a monitoring device that centrally monitors failure and operation information of various devices that make up a communication network.

[Conventional technology]

Conventionally, a monitoring device for various devices that make up a communication network has adopted a method of reporting failure or operation information, etc. by dividing it into appropriate categories and then reporting it to a higher position. And the processing load on the host device. That is, the monitoring device in the conventional example does not faithfully transmit the changed state of the input information to the higher-level device, but makes a determination after a lapse of a certain time after the state change is detected, so that the occurrence / restoration within that time can be achieved. A method was adopted in which one that was repeated once was an instantaneous failure, one that was continuous was a continuous failure, and one that occurred / recovered twice or more was an intermittent failure and aggregated, and then transmitted to the host device.

Ideally, this aggregation process is performed for each item,
When the number of items is large, the configuration of the monitoring device becomes large, so that the aggregation process is generally performed at the time interval T _O of all items collectively. Therefore, if the fault condition continued for the time interval T _O , it was aggregated as a continuous fault, while if the fault condition occurred but returned to the time interval T _O , it was aggregated as an instantaneous fault.

[Problems to be Solved by the Invention]

Since the input information gathering method of the conventional monitoring device described above is the time interval T _{O for} all items collectively ,. There is an inconvenience that there is a large variation in the time interval from the occurrence of a failure to the end of the determination for the aggregation processing. For example, the aggregation processing time interval T _O, the determination of failure has occurred and the time interval t ₁ to the end, t ₁ from continuing fault is in the range of "T _O <t ₁ <2T _O". In other words, a failure in the first aggregation processing time T _O (1) is generated, the input signal at the end of this first aggregation processing time T _O (1) indicates a failure, further, the second aggregation processing time T _O If the input signal indicates a failure even at the end of (2), the second aggregation processing time T _O
During (2), the failure has continued, so it is determined to be a continuous failure. At this time, the time from when the input signal indicates a failure until it is determined to be a continuous failure is not longer than the two aggregation processing times “2 T _O ”, but one aggregation processing time “T _O ”. Will be longer than.

This means that in the conventional example, the time from the occurrence of a failure to the end of the aggregation processing time in which the failure has occurred does not affect the aggregation determination. Since this t ₁ is the time from the occurrence of a failure to the determination of a continuous failure, as described above, depending on the length of time from the occurrence of the failure to the end of the aggregate processing time in which the failure has occurred, There are variations in the time interval from the occurrence to the end of the determination for the aggregation process.

As described above, in the conventional example, there is an inconvenience that the time required from the occurrence of the failure to the end of the determination varies depending on the timing of the failure occurrence.

． The pulse width t ₂ that may be determined as a continuous failure is “T _O
<T ₂ ”. When the pulse width t ₂ is slightly longer than the aggregate processing time interval T _{O and} the timing of failure occurrence is close to the end of the aggregate processing time, it may be determined as a continuous failure. But an input signal having a pulse width t ₂ of the same length, i.e., input information be an input information of the pulse width of "T _O <t _2", "T _O <t ₂ <2T _O" May be determined to be an instantaneous failure depending on the timing of failure occurrence.
Since the range of the pulse width determined as the instantaneous failure is “t ₂ <2T _O ”, input information having a longer pulse width than the continuous failure may be determined as the instantaneous failure.

Therefore, in the conventional example, depending on the timing of failure occurrence, there is a disadvantage that continuous failure and instantaneous failure may be mutually erroneously determined.

As described above, in the above-described conventional example, there is variation in the time required for the determination, and since continuous failure and instantaneous failure are mutually erroneously determined, it is impossible to smoothly perform the response processing for the failure. There was a flaw.

[Object of the Invention]

The present invention improves the disadvantages of such a conventional example, in particular, stabilizes the time required from the occurrence of a failure to the determination, and dramatically increases the probability of erroneous determination of continuous failure and instantaneous failure. It is an object of the present invention to provide a reliable monitoring device input information collecting method that can quickly determine the content of a failure and smoothly take countermeasures corresponding to the content of the failure by reducing the number.

[Means for solving the problem]

In the present invention, the state change detection circuit that detects the state change of the input information and notifies the state change management circuit, and the state stored in the state change management circuit at a predetermined aggregation time interval (T _O / n). Based on the determination circuit that reads out the change information and outputs it to the aggregation processing circuit, and when n pieces of information that are predetermined for the items of the input information in which the state change has occurred are input from the determination circuit, The configuration is such that an aggregation processing circuit that aggregates whether the failure indicated in the input information is instantaneous or continuous is adopted. This aims to achieve the above-mentioned object.

Example of Invention

An embodiment of the present invention will be described below with reference to FIG.

In the embodiment shown in FIG. 1, a status change detection circuit 1 for detecting a status change of input information and a status change management for storing various monitoring information detected by the status change detection circuit 1 for each item. It is provided with a circuit 2 and a judgment circuit 3 for taking out the stored contents of the state change management circuit 2 at predetermined time intervals, judging the contents, and transmitting the result to the aggregation processing circuit 4. In FIG. 1, reference numeral 10 indicates a monitoring device.

Then, in the embodiment shown in FIG. 1, a method is adopted in which the aggregation processing of a plurality of pieces of monitoring information is performed at a time interval of all items collectively, and the time interval of the aggregation processing for input information is subdivided into n pieces. In both cases, the information is judged at the time intervals subdivided into n pieces, and the aggregation processing is performed from the n pieces of judgment results.
The method is adopted. That is, instead of treating a failure that continued during the aggregation time interval T _O as a failure, a continuous failure occurs when it can be detected that at least the time failure state of the aggregation time interval “T _O −T _O / n” continues. It has been determined.

This will be described in more detail. In FIG. 1, the state change detection circuit 1 notifies the state change management circuit 2 immediately after detecting the state change of the input information. This is the timing of failure occurrence. The determination circuit 3 goes to the state change information stored in the state change management circuit 2 at a predetermined time interval T _O / n and notifies the aggregation processing circuit 4 of the result. Then, the state change information managed for each T _O / n is input to the aggregation processing circuit instead of the state change for each time interval T _O in the conventional example. The aggregation processing circuit 4 finally determines, based on the information for n times, at the time when the information for a predetermined number of times (n pieces) of information is input from the determination circuit 3 for the item of the input information in which the state change occurs. Whether the information entered is momentary or continuous
Determine if it is intermittent. That is, the failure state is n
If the failure state is less than n, it is determined to be an instantaneous failure if the failure has occurred consecutively.

As described above, in the present embodiment, the aggregation process is not performed in one aggregation time interval T _O , but is divided into subdivided time intervals.
Each determination is made by T _O / n, the information is collected by the number of times of subdivision, and the aggregation processing is performed based on the information.

This allows the. It is possible to reduce the variation in the time interval from the state change to the end of the determination for the aggregation process.
Assuming that the aggregation processing time interval is T _O and the number of time intervals subdivided into these is n, the time t ₁ required from the occurrence of a failure in the continuous failure to the determination is “T _O (1-1 / n) <t The range is ₁ <T _O ”. This is about half the time that was conventionally required for "T _O <t ₁ <2T _O ". Therefore, the time t ₁ required for the determination caused by the timing of failure occurrence is significantly shortened. For this reason, the occurrence of a failure can be displayed more quickly on the outside, and therefore it is possible to quickly take countermeasures corresponding to the content of the failure.

Also,. The probability of misjudging an instantaneous failure and a continuous failure is reduced. Range of pulse width judged as instantaneous failure
t ₂ is “t ₂ <T _O ”, which is about 1 / th that of the conventional “t ₂ <2 T _O ”.
Can be 2 widths. Therefore, depending on the timing of failure occurrence, the range t _{2 of the} pulse width in which both continuous failure and instantaneous failure can be determined is “T _O (1-1 / n) <t ₂ <T _2
O '. Therefore, this pulse width that may cause an erroneous determination is dramatically shortened as compared with the conventional case of “T _O <t ₂ <2T _O ”. As described above, in the present embodiment, the pulse width “T _O <t ₂ <2T _O ”, which may have been erroneously determined depending on the timing of occurrence of the conventional failure, should always be accurately determined as the continuous failure. In addition, depending on the timing of failure occurrence, it is possible to halve the determination time required for "t ₁ <2 T _O " to "t ₁ <T _O ".

〔The invention's effect〕

As described above, according to the present invention, when the aggregation processing circuit receives n pieces of information from the determination circuit, whether the failure indicated in the input information is an instantaneous failure or not based on the information of n pieces. In order to aggregate the failure, it is possible to reduce the variation in the time interval from the state change in the monitoring device to the end of the judgment operation required for the aggregation processing, and to confirm whether the input information is an instantaneous change or a continuous one. It is an unprecedented advantage that an accurate decision can be made, and therefore the reliability of the data after aggregation can be significantly improved, which allows the operator to quickly respond to a change in status such as a failure. It is possible to provide a method of collecting input information of the monitoring device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention. 1 ... Condition change detection circuit, 2 ... Condition change management circuit, 3 ... Judgment circuit, 4 ... Aggregate processing circuit, 10 ... Monitored device.

Claims (1)

[Claims] 1. A state change detection circuit for detecting a state change of input information and notifying the state change management circuit, and reading out state change information stored in the state change management circuit at a predetermined time interval. A determination circuit that outputs to the aggregation processing circuit and n pieces of information that are predetermined for the items of the input information in which a state change has occurred are input to the input information based on the n pieces of information when the determination circuit inputs the information. An input information collecting method for a monitoring device, comprising: an aggregate processing circuit that aggregates whether a failure that occurs is an instantaneous failure or a continuous failure.