JP2004227084A - Alarm information collection device - Google Patents

Abstract

An object of the present invention is to reduce the difference between the timing of generation and cancellation of alarm information on each monitoring item and the timing of collecting reports on these phenomena.
An alarm information collecting apparatus having a configuration in which a polling control unit controls an operation of collecting alarm information by polling of each monitoring item by a polling execution unit based on a schedule regarding monitoring timing of a plurality of monitoring items. The fault detecting means 112 for detecting the occurrence of a fault based on the alarm information obtained by polling each monitoring item, and the polling control means 110 perform a fault detection every time the fault detecting means 112 detects the occurrence of the fault. A continuous insertion unit 113 is provided for adjusting the schedule so as to continuously insert the monitoring timing corresponding to the additional polling of the detected monitoring item into the monitoring timing assigned to the monitoring item in which the failure is detected.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an alarm information collection device that collects information on a plurality of units constituting an apparatus by polling.
[0002]
[Prior art]
FIG. 20 shows a configuration of a conventional general alarm information collecting device.
The alarm information collection device 410 and the plurality of units 420 shown in FIG. 20 are connected via a bus. In the alarm information collecting device 410, the monitoring control unit 411 collects information on the operation state of each unit 420 by sequentially polling each unit 420 connected to the bus, and, if necessary, a computer. Report to the host device such as. At this time, the interface control unit (I / F) 412 transmits a request for the specified unit 420 via the bus according to the instruction from the monitoring control unit 411. On the other hand, when a unit control unit 421 of each unit 420 receives a request for requesting device information via an interface control unit (I / F) 422 provided in the unit, each unit constituting the unit is And collects the device information in the I / O register 423. Thereafter, the unit control unit 421 notifies the interface control unit 422 that the device information has been stored in the I / O register 423. In response, the interface control unit 422 transfers the contents of the I / O register 423 to the bus. To the alarm information collection device 410 via the.
[0003]
In each unit 420 shown in FIG. 20, for example, an output of a detector or the like that detects a line abnormality is held as alarm information in a corresponding latch, and the alarm information is read by the unit control unit 421 of each unit 420. When cleared, it is cleared. By holding in the latch in this manner, regardless of the timing at which the abnormality is detected and the length of the period during which the abnormality has continued, the unit control section 421 reads the alarm information relating to the detected abnormality without fail, and / O register 423. Since each unit 420 is provided with such a configuration, even if a temporary failure such as a temporary line failure occurs, the fact that the failure has occurred can be reliably determined by the interface control unit 422. Is collected by the alarm information collecting device 410 via the.
[0004]
Further, every time the alarm information is collected in this manner, the monitoring control unit 411 provided in the alarm information collecting device 410 rewrites the contents of the alarm information holding unit 413 with the collected alarm information. Therefore, the alarm information indicating that a fault has occurred in each monitoring item is held in the alarm information holding unit 413 until the newly collected corresponding alarm information indicates that the fault condition has been cleared.
[0005]
As described above, when collecting device information by using sequential polling, a technique of changing the polling frequency of a device for which a failure has been reported has been proposed (for example, see Patent Document 1).
[Patent Document 1]
JP-A-1-151847
[0006]
[Problems to be solved by the invention]
By the way, in the general sequential polling as described above, it takes a considerable amount of time to collect device information on each device, so when collecting a large number of device information constituting the system, Inevitably, the polling interval from the time when the device information of a certain unit in the system is collected to the time when the device information is collected next becomes long.
For this reason, the device information collected and held by the alarm information collecting device from each unit may not always match the state of each unit constituting each unit at that time, and moreover, this mismatch may be long. Continues for hours.
[0007]
Hereinafter, the cause of the occurrence of such inconsistency will be described with reference to a timing chart illustrating a conventional alarm information collecting operation shown in FIG.
FIG. ₁ )-(A _N ) Shows the unit 420 shown in FIG. ₁ ~ 420 _N Shows the monitoring timing corresponding to. These monitoring timings are generated by the monitoring control unit 411 shown in FIG. 20 based on the clock signal shown in FIG.
[0008]
For example, in the system shown in FIG. 20, as shown in FIG. ₁ Immediately after polling at the monitoring timing for this unit 420 ₁ In the case where a failure has occurred in (2) (indicated by the arrow labeled A in FIG. 21 (c)), regardless of the duration of the failure itself, the corresponding alarm information is held in the corresponding latch provided in the unit. It is maintained as it is until the next monitoring timing (see FIG. 21D). Here, if the above-mentioned fault is a transient one having a very short duration, FIG. ₁ In the next monitoring timing indicated by the arrow with the symbol B in ()), the alarm information collecting apparatus firstly outputs the alarm information indicating the occurrence of the fault by polling at this time, even though the fault itself has been resolved. Collect and, at this stage, recognize for the first time that the unit has failed. Then, the alarm information collection device recognizes that the failure in the unit has been resolved by polling at the next monitoring timing (see FIG. ₁ )), Indicated by the arrow with the symbol C), and new alarm information is obtained (see FIG. 21 (e)).
[0009]
The difference between the timing of detecting and canceling the alarm information in each unit and the timing of reporting these phenomena to the alarm information collecting device is, of course, proportional to the number of units to be monitored by the alarm information collecting device. Tend to increase. For example, in an alarm information collection device provided in a transmission device of a communication system, a configuration in which dozens of units are collectively monitored is generally used. Therefore, the above-described polling interval may be extended to several hundred ms. is there.
[0010]
On the other hand, a transient failure having a very short duration compared to the polling interval described above, such as a temporary failure of a line connected to the transmission device, is not limited to the transmission device, and is not limited to the transmission device, but in various systems. This is a relatively frequent disorder. Since the magnitude of the difference between the recovery timing of such a transient failure and the timing at which recovery has been reported is a factor that hinders accurate understanding of the occurrence of such a failure, there are various factors. This is an important issue in normal operation of a simple system.
[0011]
The present invention provides an alarm capable of reducing a difference between a timing of generating and canceling alarm information on each monitoring item and a timing of collecting reports on these phenomena when sequentially collecting alarm information on a large number of monitoring items by polling. It is an object to provide an information collecting device.
[0012]
[Means for Solving the Problems]
FIG. 1 shows a principle block diagram of a first alarm information collecting device according to the present invention. The invention of claim 1 is an alarm information having a configuration in which the polling control means 110 controls an operation of collecting alarm information by polling of each monitoring item by the polling execution means 111 based on a schedule relating to monitoring timing of a plurality of monitoring items. In the collection device, the failure detection means 112 for detecting the occurrence of a failure based on the alarm information obtained by polling each monitoring item, and the polling control means 110 are provided each time the occurrence of the failure is detected by the failure detection means 112. Continuous insertion means 113 for adjusting the schedule so as to continuously insert the monitoring timing corresponding to the additional polling for the monitoring item in which the failure is detected to the monitoring timing assigned to the monitoring item in which the failure is detected. It is characterized by having a configuration with .
[0013]
According to the first aspect of the present invention, each time the failure detecting unit 112 detects that a failure has occurred in a certain monitoring item, the continuous insertion unit 113 provided in the polling control unit 110 adds the monitoring item to which the failure has been detected. Subsequent to the assigned monitoring timing, additional polling for the monitoring item is inserted into the schedule. Such insertion of the additional polling is repeated until the alarm information collected as a result of the execution of the additional polling indicates that the fault relating to the relevant monitoring item has been resolved.
[0014]
Therefore, in the first alarm information collection device configured as described above, when a failure related to an arbitrary monitoring item is detected, additional polling can be continuously performed on the monitoring item. For example, it is possible to quickly collect alarm information indicating that a transient failure has been resolved, and report it to a higher-level device.
[0015]
Further, the continuous insertion unit 113 illustrated in FIG. 1 includes an additional unit 121 that adds an additional polling for a corresponding monitoring item to the schedule every time a failure occurrence is detected by the failure detection unit 112, and an additional unit 121 that adds the additional polling to the schedule. When the number of added polls reaches a predetermined number, an additional stop unit 122 for stopping the adding operation by the adding unit may be provided.
[0016]
In the first alarm information collecting apparatus provided with such a continuous insertion unit 113, the additional polling unit continuously inserts an arbitrary monitoring item into the schedule by controlling the operation of the addition unit 121 by the addition stop unit 122. To a predetermined number. Therefore, regardless of whether the fault has been resolved or not, after the additional polling is performed up to the predetermined number, the polling execution unit 111 performs polling for the next monitoring item to be polled in accordance with the order defined in the original schedule. Execute That is, after the additional polling is continuously performed a predetermined number of times for the monitoring item in which the failure has occurred, the normal sequential polling is restarted. As a result, it is possible to limit the extension of the polling interval for other monitoring items caused by inserting additional polling, and to avoid a remarkable decrease in the polling frequency for other monitoring items.
[0017]
On the other hand, in the first alarm information collecting apparatus shown in FIG. 1, the schedule provided in the polling control means 110 is composed of a fixed monitoring timing previously allocated to each monitoring item and an additional allocation to an arbitrary monitoring item. It is formed from a predetermined number of spare timings that are possible and are waiting time when they are not assigned to the monitoring item, and the continuous insertion unit 113 sets a schedule every time the failure detection unit 112 detects the occurrence of the failure. May be assigned as the monitoring timing corresponding to the additional polling for the corresponding monitoring item.
[0018]
In the alarm information collecting device having such a configuration, each time the failure detection unit 112 detects the occurrence of a failure, the allocating unit 123 sets the spare timing included in the schedule in advance for the monitoring item in which the failure is detected. The monitoring timing is assigned, and additional polling is performed at the additionally assigned monitoring timing. This spare timing is a waiting time when it is not assigned to a monitoring item, so even if it is assigned for additional polling for a monitoring item in which a failure is detected, the polling operation for all monitoring items goes through one cycle. The time required to do so does not change. Therefore, regardless of the period during which a failure is detected and the number of monitoring items in which a failure is detected, it is possible to maintain a constant polling interval for monitoring items that are indicated as normal by the alarm information.
[0019]
FIG. 2 shows a principle block diagram of a second alarm information collecting apparatus according to the present invention. The invention according to claim 2 is configured so that the polling control means 110 controls the operation of collecting alarm information by polling of each monitoring item by the polling execution means 111 based on a schedule relating to monitoring timing of a plurality of monitoring items. In the collection device, based on alarm information obtained by polling of each monitoring item, an item detecting unit 115 for detecting a monitoring item in which a failure has occurred, and monitoring of each monitoring item detected by the item detecting unit is performed. Timing calculating means for calculating a position obtained by equally dividing a polling cycle based on the monitoring timing assigned to the item as an additional polling timing, and the polling control means 110 is calculated by the timing calculating means 116 Added to the timing Wherein the-ring is configured to include a schedule adjusting means 117 to be inserted into the schedule.
[0020]
According to the second aspect of the present invention, the item detecting means 115 detects all of the monitoring items which are determined to have failed according to the alarm information collected so far, and determines the timing of performing additional polling for these monitoring items. It is calculated by the timing calculation means 116. The timing calculating means 116 calculates the additional polling timing for each monitoring item in which a failure has been detected so as to be even in the polling cycle for each monitoring item. By inserting the additional polling into the schedule, a plurality of pollings can be executed at substantially equal intervals for the monitored item in one polling cycle.
[0021]
Further, the schedule adjusting means 117 shown in FIG. 2 is provided with an additional limiting means 124 for limiting the number of additional polling inserted into the schedule to a predetermined number in accordance with the calculation result by the timing calculating means 116. May be.
In the alarm information collecting apparatus including the schedule adjusting unit 117 configured as described above, the number of additional polling inserted into the schedule due to the detection of a failure can be limited to a predetermined number. This makes it possible to set a limit on the total number of polling times including additional polling when, for example, a large number of monitoring items have been detected as failures. Unlimited extension of the time required can be prevented. Therefore, regardless of the number of monitoring items in which a failure has been detected, it is possible to collect alarm information at an appropriate frequency for all monitoring items.
[0022]
Further, in the alarm information collecting device shown in FIG. 2, the schedule provided in the polling control means 110 can be fixedly assigned to each monitoring item in advance, and can be additionally assigned to any monitoring item. And a predetermined number of backup timings that become a waiting time when not assigned to a monitoring item, and the schedule adjusting means 117 deletes the backup timing included in the schedule and replaces the corresponding monitoring item with the corresponding monitoring item instead. The transfer setting means 125 may be configured to transfer and set the additional polling to the timing calculated by the timing calculation means 116.
[0023]
In the alarm information collecting apparatus provided with such a transfer setting unit 125, the transfer setting unit 125 monitors the failure detected according to the calculation result by the timing calculation unit 116 instead of the preliminary timing included in the schedule in advance. The monitoring timing for the item is inserted into the schedule, and additional polling for the monitoring item corresponding to the inserted monitoring timing is performed. This spare timing is a waiting time when it is not assigned to a monitoring item, so even if it is assigned for additional polling for a monitoring item in which a failure is detected, the polling operation for all monitoring items goes through one cycle. The time required to do so does not change. Therefore, regardless of the period during which a failure is detected and the number of monitoring items in which a failure is detected, it is possible to maintain a constant polling interval for monitoring items that are indicated as normal by the alarm information.
[0024]
FIG. 3 shows a principle block diagram of a third alarm information collecting apparatus according to the present invention. According to the third aspect of the present invention, there is provided an alarm information having a configuration in which the polling control means controls an operation of collecting alarm information by polling of each monitoring item by the polling executing means based on a schedule relating to monitoring timing of a plurality of monitoring items. The collection device includes an event detection unit 118 that detects a change in an operation state including occurrence of a failure and elimination of the failure based on alarm information obtained by polling each monitoring item. Each time a failure is detected in any of the monitoring items by the event detecting means 118, the dependent information holding means 131 indicating the mutual dependency of the monitoring items is referred to, and the failure is detected. Schedules corresponding to the monitored items The mask setting means 132 for selectively masking the monitoring timing set in the event list, and the monitoring items for which the elimination of the failure has been detected by the event detecting means 118, refer to the dependent information holding means 131, and determine the detected monitoring items. It is characterized by comprising a mask release means 133 for releasing a mask set at a monitoring timing included in a schedule corresponding to a monitoring item determined to be dependent.
[0025]
According to the third aspect of the present invention, when the occurrence of a failure is detected for a certain monitoring item by the event detecting means 118, the mask setting means 132 provided in the polling control means 110 transmits the information stored in the dependent information storing means 131. , The monitoring timing set in the schedule for the monitoring item positioned below this monitoring item is masked. Thereafter, when the event detection unit 118 detects that the above-described failure related to the monitoring item has been resolved, the mask release unit 133 uses the information held in the dependent information holding unit 131 to determine the lower level of this monitoring item. The mask set at the monitoring timing corresponding to the monitoring item positioned in is released. In this way, by masking the monitoring timing of the lower-level alarm information with the occurrence of the higher-level alarm information, in a state where some trouble is detected, the monitoring items are limited to the minimum necessary monitoring items. It is possible to temporarily increase the frequency of executing the polling and collecting the alarm information on the higher-order monitoring item in which the fault has occurred.
[0026]
FIG. 4 shows a principle block diagram of a fourth alarm information collecting device according to the present invention. The invention of claim 4 is an alarm information having a configuration in which the polling control means 110 controls an operation of collecting alarm information by polling of each monitoring item by the polling execution means 111 based on a schedule relating to monitoring timings of a plurality of monitoring items. In the collection device, the polling control unit 110 includes, for all monitoring items, a working information holding unit 134 that holds information indicating whether the system is a working system or a standby system, and information stored in the working information holding unit 134. And a skip control unit 135 for skipping the monitoring timing set in the schedule for the monitoring items belonging to the standby system at a predetermined rate.
[0027]
According to the fourth aspect of the present invention, the monitoring timing set in the schedule corresponding to the monitoring item indicated as the standby system in the active information holding unit 134 is skipped by the skip control unit 135 at a predetermined rate. . For example, if the monitoring timing assigned to each monitoring item belonging to the standby system is skipped once every two monitoring periods, the monitoring information collection operation for all the monitoring items will be performed twice in the alarm information collection operation. The polling frequency of the active system can be made higher than the polling frequency of the standby system, such that polling is performed three times for each monitoring item and once for each standby system.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 5 shows a first embodiment of the alarm information collecting device according to the present invention.
In addition, among the components shown in FIG. 5, those equivalent to the respective units shown in FIG. 20 are denoted by the same reference numerals as those shown in FIG. 20, and description thereof will be omitted.
[0029]
In the alarm information collecting device illustrated in FIG. 5, the monitoring control unit 210 collects alarm information from the plurality of units 420 via the interface control unit 412, similarly to the monitoring control unit 411 illustrated in FIG.
In the monitoring control unit 210, the alarm information collected from the unit via the interface control unit 412 is held in the alarm information holding unit 211, and the alarm information held in the alarm information holding unit 211 is the same as the conventional one. Then, the report processing unit 213 notifies the higher-level device according to an appropriate procedure. In addition, the above-described alarm information is simultaneously sent to the alarm detection unit 212, and the alarm detection unit 212 detects a change in state, such as occurrence of a failure and elimination thereof.
[0030]
In the monitoring control unit 210 shown in FIG. 5, the sequential control unit 214 outputs an instruction for sequentially designating each unit as a monitoring target in accordance with a predetermined clock signal, as in the related art. On the other hand, the insertion control unit 215 controls the operation of the above-described sequential control unit 214 based on the detection result of the alarm detection unit 212 and the notification from the counter 216, and additionally performs an additional operation on the unit in which the failure is detected. Outputs an instruction to perform polling. The counter 216 shown in FIG. 5 counts the number of times that the insertion control unit 215 outputs the above-described instruction, and notifies the insertion control unit 215 when the count result reaches a predetermined threshold. .
[0031]
Here, the correspondence between each unit shown in FIG. 5 and each unit shown in FIG. 1 will be described.
When the interface control unit 412 shown in FIG. 5 operates according to the instruction from the monitoring control unit 210, the function of the polling execution unit 111 shown in FIG. 1 is performed. 1. The alarm detection unit 212 shown in FIG. 5 corresponds to the failure detection unit 112 shown in FIG. Similarly, the insertion control unit 215 illustrated in FIG. 5 corresponds to the adding unit 121 illustrated in FIG. On the other hand, when the insertion control unit 215 operates in response to the notification from the counter 216 shown in FIG. 5, the function of the additional stop unit 122 shown in FIG. 1 is performed. Therefore, in FIG. 5, the function of the continuous insertion unit 114 shown in FIG. 1 is performed by the insertion control unit 215 and the counter 216. Note that the schedule shown in FIG. 1 corresponds to the procedure for defining the operation of the sequential control unit 214 shown in FIG.
[0032]
Next, the operation of the first alarm information collecting device shown in FIG. 5 will be described.
FIG. 6 is a flowchart showing the operation of the first alarm information collecting device. FIG. 7 is a timing chart illustrating the operation of the first alarm information collection device.
[0033]
At the beginning of each monitoring cycle, the sequential control unit 214 shown in FIG. 5 sets an initial value (for example, a numerical value “1”) to the monitoring number i indicating the unit to be monitored in step 301 shown in FIG. Further, the insertion control unit 215 sets an initial value of the count (for example, a numerical value “1”) in the counter 216. Next, the sequential control unit 214 illustrated in FIG. 5 designates the i-th unit 420 indicated by the monitoring number i, instructs the interface control unit 412 to request alarm information, and responds to this instruction. The interface control unit 412 performs polling for the ith unit 420i described above (step 302).
[0034]
If the alarm information collected in step 302 indicates that no failure has occurred in the i-th unit 420 (negative determination in step 303), the control unit 214 proceeds to step 304 and sequentially proceeds to step 304. Increment i. Next, the sequential control unit 214 determines whether or not the incremented monitoring number i exceeds the total number N of units to be monitored (step 305). If the determination in step 305 is negative, the process proceeds to step 302. Proceed to collect alarm information for the next unit.
[0035]
As described above, in the state where the failure is not detected by the alarm detecting unit 212, the reference numeral (a) in FIG. ₁ )-(A _N At the monitoring timing corresponding to each unit indicated by (), alarm information on each unit 420 is collected. In FIG. 7, FIG. 7B shows an internal clock signal used for generating the monitoring timing in the sequential control unit 214 and the insertion control unit 215.
[0036]
When the monitoring operation for all the units has completed one cycle in this way, the affirmative determination in step 305 described above is made, and the control unit 214 sequentially determines that one monitoring cycle has been completed, and proceeds to step 301 to perform new monitoring. Start monitoring and control related to the cycle.
By the way, for example, the unit 420 ₁ After the monitoring timing corresponding to ₁ If a failure occurs in ( ₁ ) And (c)), this unit 420 in the next monitoring period ₁ For the first time at the monitoring timing corresponding to ₁ Detects that a failure has occurred.
[0037]
In this case, an affirmative determination is made in step 303 shown in FIG. ₁ ) To request the alarm information, and in response to this instruction, the interface control unit 412 ₁ Is polled to collect alarm information on this unit (step 306).
[0038]
As shown in FIG. ₁ If the trouble that has occurred in is already resolved at the stage when it is detected by the alarm detection unit 212 (see FIGS. 7C and 7D), as described above, this unit 420 ₁ The alert information obtained from the additional polling for indicates that the fault has been resolved.
[0039]
As described above, when the alarm information obtained by the additional polling indicates that the fault has been recovered (the affirmative determination in step 307 shown in FIG. 6), the insertion control unit 215 completes the additional polling insertion process. Then, the control is sequentially passed to the control unit 214, and the sequence control unit 214 proceeds to step 304 and restarts the polling operation sequentially.
[0040]
On the other hand, in the case of a negative determination in step 307, the insertion control unit 215 determines that insertion of additional polling is still necessary. In this case, after instructing the counter 216 to increment the number of insertions k in step 308, the insertion control unit 215 determines whether or not the number of insertions k indicated by the count value of the counter 216 exceeds the upper limit M. (Step 309) In the case of a negative determination, the process returns to Step 306 to execute new additional polling. On the other hand, in the case of an affirmative determination in step 309, the insertion control unit 215 ends the additional polling insertion process, and sequentially passes control to the control unit 214, as in the case of the affirmative determination in step 307 described above.
[0041]
In the first alarm information collecting device shown in FIG. 5, as described above, when the occurrence of a failure in a unit is detected at the monitoring timing corresponding to the unit, the unit is continuously connected to the unit. Perform additional polling. Therefore, it is possible to quickly collect alarm information indicating that a fault that has occurred in any unit has been resolved, and to reduce the difference between the timing at which the alarm information for each unit changes and the timing at which reports on these phenomena are collected. it can. As a result, it is possible to reduce the difference between the failure occurrence status of each unit and the failure occurrence status indicated by the alarm information collected by the alarm information collection device.
[0042]
For example, an alarm indicating a temporary failure such as a temporary disconnection of a line shortens a period in which the alarm is held in the alarm information holding unit 211 provided in the alarm information collection device, and the above-described temporary Since it is possible to approach the period in which the failure actually occurs, it is possible to more accurately grasp the state of the unit to be monitored.
[0043]
Also, as shown in steps 306 to 309 in FIG. 6, the insertion control unit 215 sets an upper limit on the number of additional polls to be inserted in one monitoring period, and controls the number of additional polls. Is prevented from increasing excessively.
Of course, it is also possible to adopt a configuration in which the insertion control unit 215 inserts additional polling indefinitely according to the detection result by the alarm detection unit 212.
[0044]
Next, a method for maintaining a constant monitoring cycle regardless of insertion of additional polling will be described.
FIG. 8 shows another embodiment related to the first alarm information collecting device.
In addition, in each unit illustrated in FIG. 8, the same components as those illustrated in FIG. 5 are denoted by the same reference numerals, and description thereof is omitted.
[0045]
In the alarm information collection device shown in FIG. 8, the sequential control unit 217 controls the sequential polling operation in consideration of the number of times of additional polling insertion indicated by the count value of the counter 216.
In this case, the insertion control unit 215 and the sequential control unit 217 perform the insertion of the additional polling and the control of the sequential polling operation in accordance with the count value of the counter 216 shown in FIG. The function of the means 123 is performed.
[0046]
FIG. 9 is a flowchart showing an operation of another embodiment related to the first alarm information collecting device.
Note that among the steps shown in FIG. 9, those equivalent to the steps shown in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted.
In the flowchart shown in FIG. 9, in response to an affirmative determination in step 305, step 312 is executed instead of returning to step 301.
[0047]
In step 312, the sequential control unit 217 determines whether the value of the sum of the monitoring number i and the number of insertions k indicated by the count value of the counter 216 exceeds the value of the sum of the total number N of units and the upper limit M of the number of insertions. It is determined whether or not the monitoring cycle has elapsed based on whether or not.
Therefore, when no fault is detected for any unit, the time corresponding to the upper limit M of the number of insertions becomes the waiting time for the polling operation sequentially. On the other hand, when the additional polling is inserted by the insertion control unit 215, every time the additional polling is inserted, a part of the waiting time provided in the schedule is deleted. This is equivalent to assigning the preliminary timing provided in the schedule to additional polling.
[0048]
In this way, by executing additional polling within the waiting time range set in advance in the schedule, the alarm information indicating that the fault that has occurred in any unit has been eliminated can be quickly performed while maintaining the monitoring cycle constant. And the timing at which the alarm information about each unit changes and the timing at which reports on these phenomena are collected can be reduced.
[0049]
Next, a method of equally inserting additional polling within a polling cycle for a monitoring item indicating that a failure has occurred will be described.
FIG. 10 shows an embodiment of a second alarm information collecting device according to the present invention.
Note that among the components illustrated in FIG. 10, components equivalent to the respective portions illustrated in FIG. 5 are denoted by the reference numerals illustrated in FIG. 5, and description thereof will be omitted.
[0050]
In the monitoring control unit 220 provided in the alarm information collection device shown in FIG. 10, the sequential control unit 221 issues an instruction for sequentially designating each unit as a monitoring target according to a predetermined clock signal as in the related art. In addition to the output, the monitoring number i indicating the unit designated as the monitoring target is notified to the reference number calculating unit 222. The reference number calculation unit 222 calculates the expression (1) regarding the notified monitoring number i, the division number m indicating the number of divisions of the monitoring period, the phase x indicating the position in the divided monitoring period, and the total number N of units. Then, the alarm information holding unit 211 calculates a reference number j indicating a unit to which the occurrence of an alarm is to be referred, and transfers the reference number j to the alarm determination unit 223.
[0051]
j = mod (N, i + (mx) N / m) (1)
Further, the alarm determination unit 223 illustrated in FIG. 10 refers to the alarm information held in the alarm information holding unit 211 corresponding to the unit indicated by the notified reference number j, and a failure occurs in the corresponding unit. Is determined. The determination result by the alarm determination unit 223 is notified to the sequential control unit 221 and the addition instruction unit 224, and the sequential control unit 221 and the addition instruction unit 224 respectively perform processing to be described later according to the notified determination result.
[0052]
Here, the correspondence between each unit shown in FIG. 10 and each unit shown in FIG. 2 will be described.
When the interface control unit 412 shown in FIG. 10 operates according to the instruction from the monitoring control unit 220, the function of the polling execution unit 111 shown in FIG. 1 is performed. The alarm information holding unit 211 and the alarm determination unit 223 illustrated in FIG. 10 correspond to the item detection unit 115 illustrated in FIG. 2, and the reference number calculation unit 222 illustrated in FIG. It corresponds to the calculating means 116. Also, the function of the schedule adjustment unit 117 shown in FIG. 2 is performed by the addition instruction unit 224 shown in FIG. 10 outputting an instruction for additional polling according to the determination result by the alarm determination unit 223.
[0053]
Hereinafter, the operation of the second alarm information collection device shown in FIG. 10 will be described.
FIG. 11 is a flowchart showing the operation of the second alarm information collecting device. FIG. 12 is a timing chart illustrating the operation of the second alarm information collection device.
[0054]
When the collection of the alarm information is started, the control unit 221 sequentially sets the initial value “1” to the monitoring number i, and the reference number calculating unit 222 sets the initial value “1” to the phase x ( Step 321).
In step 322, the sequential control unit 221 outputs an instruction to perform polling by specifying the monitoring number i, and in response, the interface control unit 412 causes the unit 420 _i Polling for. The alarm information obtained at this time is held in the alarm information holding unit 211.
[0055]
Next, the reference number calculation unit 222 calculates the reference number j according to the above-described equation (1) (step 323), and the alarm determination unit 223 determines the unit 420 indicated by the reference number j. _j With reference to the alarm information held in the alarm information holding unit 211 corresponding to (step 324), it is determined whether or not the alarm information indicates an alarm state in which a failure has occurred (step 325).
[0056]
For example, assuming that the number of divisions m = 2 and the total number of units N = 10, as shown in FIG. ₇ At the time of polling for, in step 323 described above, the reference number calculation unit 222 calculates the unit 420 ₂ Is obtained (see FIG. 12D). Here, in the example shown in FIG. ₂ Unit 420 shown in) ₂ At the time of polling, the alarm information indicating the ongoing failure at this point is collected (see FIG. 12E), and the alarm information is already held in the alarm information holding unit 211.
[0057]
Therefore, in this case, the alarm determination unit 223 refers to the alarm information holding unit 211 based on the reference number “2”, and thereby, ₂ Since the alarm information indicating that a fault has occurred is obtained, it is determined based on this that the unit indicated by the reference number is in the alarm state.
[0058]
As described above, when the alarm determining unit 223 determines that the state is the alarm state (the affirmative determination in step 325), the control unit 221 temporarily stops the operation, and instead, the addition instructing unit 224 performs the above-described operation. And outputs an instruction to perform polling by designating the reference number j. In response to this, the interface control unit 412 causes the unit 420 _j Is polled (step 326).
[0059]
In this way, as shown in FIG. 12, the unit 420 corresponding to the monitoring number "2" ₂ An additional poll for can be inserted. Along with this additional polling, as shown in FIG. ₂ Can be facilitated.
[0060]
Here, FIG. ₁ )-(A ₁₀ ), Unit 420 ₁ ~ 420 ₁₀ FIG. 12 (b) shows a monitoring signal obtained by adding the additional polling to the sequential polling, and FIG. 12 (b) shows a clock signal defining the operation of the sequential controller 221 and the additional instructing unit 224. FIG. 12C shows monitoring numbers, and FIG. 12D shows a series of reference numbers. 13 (e), (f) and (g) show the unit 420. ₂ The fault detection signal, the latch signal, and the collected alarm information were collected. It should be noted that the monitoring numbers and reference numbers shown in FIGS. ₁₀ Is indicated by the symbol A.
[0061]
After inserting the additional polling as described above, the addition instruction unit 224 determines whether or not the calculation of the reference numbers has been completed for all the phases obtained by dividing one monitoring cycle by the division number m ( Step 327). In the case of a negative determination in step 327, the addition instruction unit 224 increments the phase x (step 328), and returns to step 323. In response, the reference number calculation unit 222 determines the reference number in the next phase. j is calculated.
[0062]
On the other hand, in the case of an affirmative determination in step 327, the addition instructing unit 224 determines that processing for all reference numbers corresponding to the monitoring number i has been completed, ends the additional polling insertion processing, and sequentially proceeds to the control unit. Control is passed to 221. In response, the control unit 221 sequentially increments the monitoring number i (step 329), sets an initial value for the phase x (step 330), returns to step 322, and returns to the next step indicated by the monitoring number i. The process of collecting the alarm information for the unit is restarted.
[0063]
In the example shown in FIG. 12, additional polling inserted as described above causes ₂ Are already cleared, the monitoring number is incremented with the restart of the sequential polling operation by the sequential control unit 221, and the unit 420 is reset again. ₂ Is executed, alarm information indicating that the fault has been resolved is obtained, and the contents of the alarm information holding unit 211 are updated based on the alarm information.
[0064]
In this way, the reference number with the phase shifted is calculated by the reference number calculating unit 222 with respect to the monitoring number sequentially incremented by the control unit 221, and the additional polling is inserted based on the reference number, so that a failure occurs. For each detected unit, the number of additional polls corresponding to the number of divisions can be equally inserted in one monitoring cycle.
[0065]
FIG. 13 shows an example in which, when the number of divisions m = 3 and the total number of units N = 10, additional polling is inserted for the units indicated by the monitoring numbers 4 and 7. FIG. 13 (a) ₄ ), (A ₇ ), Unit 420 ₄ , 420 ₇ FIG. 13B shows a clock signal that defines the operation of the sequential control unit 221 and the addition instruction unit 224. FIG. Further, FIG. 13C shows monitoring numbers, and FIGS. 13D and 13E show sequences of reference numbers having different phases. 13 (f), (g) and (h) show the unit 420. ₄ 13 (i), (j) and (k) show a failure detection signal, a latch signal and collected alarm information in FIG. ₇ 3 shows the failure detection signal, the latch signal, and the collected alarm information.
[0066]
As described above, in the second alarm information collection device shown in FIG. 10, even when monitoring a group of units in which a failure having a relatively long duration is likely to occur, a failure that has occurred in any unit is not affected. Alarm information indicating that the alarm has been resolved can be quickly collected, and the difference between the timing at which the alarm information of each unit changes and the timing at which reports on these phenomena are collected can be reduced. As a result, it is possible to reduce the difference between the failure occurrence status of each unit and the failure occurrence status indicated by the alarm information collected by the alarm information collection device.
[0067]
Further, the number of additional polls inserted during one cycle of the monitoring number can be limited.
FIG. 14 shows another embodiment of the second alarm information collecting device according to the present invention.
Note that among the components shown in FIG. 14, the same components as those shown in FIG. 10 are denoted by the same reference numerals as those in FIG. 10, and description thereof will be omitted.
[0068]
The monitoring control unit 220 illustrated in FIG. 14 includes a counter 225 in addition to the components illustrated in FIG. The counter 225 counts the number of times the addition instruction unit 224 has output an instruction for performing additional polling. 224, and stops the insertion operation of the additional polling by the reference number calculation unit 222 and the addition instruction unit 224.
[0069]
In this manner, the reference number calculation unit 222 and the addition instruction unit 224 stop the insertion operation of the additional polling in accordance with the count value of the counter 225 illustrated in FIG. The function of the additional restriction means 124 is performed.
FIG. 15 is a flowchart showing the operation of another embodiment of the second alarm information collecting device shown in FIG.
[0070]
In step 331 shown in FIG. 15, the sequential control unit 221 sets the count value of the counter 225 to an initial value “0” together with the initialization processing similar to step 321 shown in FIG. 11.
On the other hand, before calculating the reference number, the reference number calculation unit 222 compares the number of insertions k with the upper limit c of the number of insertions, and if the number of insertions k has not reached the upper limit (negative determination in step 332), Proceeding to step 323, a reference number is calculated. On the other hand, in the case of an affirmative determination in step 332, the reference number calculation unit 222 determines that additional polling cannot be inserted any more, and sequentially passes control to the control unit 221. In this case, the control unit 221 proceeds to step 334 as shown by the terminal denoted by the symbol A in FIG. 15, and increments the monitoring number i and initializes the phase x. Thereafter, the control unit 221 sequentially determines whether or not the monitoring number i has exceeded the total number N of units in step 335, and if the determination in step 335 is negative, the process proceeds to step 322 and the next step indicated by the monitoring number i Collects alarm information on units. On the other hand, in the case of an affirmative determination in step 335, the control unit 221 sequentially determines that the monitoring number i has completed one cycle, proceeds to step 331 to perform initialization processing, and starts processing of a new monitoring cycle.
[0071]
As described above, in another embodiment of the second alarm information collection device shown in FIG. 14, the reference number calculation unit 222 and the alarm determination unit 222 determine only when the count value of the counter 225 reaches the upper limit c of the number of insertions. The insertion of the additional polling by the unit 223 and the additional instruction unit 224 prevents the monitoring period from being extremely increased due to the insertion of the additional polling.
[0072]
Further, it is also possible to perform processing corresponding to step 311 shown in FIG. 9 in response to an affirmative determination in step 335, and to assign a waiting time previously set in the polling schedule to additional polling.
Next, a description will be given of a method of shortening the monitoring interval for the main alarm information by utilizing the mutual dependency of the alarm information.
[0073]
FIG. 16 shows an embodiment of a third alarm information collecting device according to the present invention.
Note that among the components shown in FIG. 16, those equivalent to the respective units shown in FIG. 20 or FIG. 5 are denoted by the reference numerals shown in FIG. 20 or FIG. 5, and description thereof will be omitted.
[0074]
In the monitoring control unit 230 illustrated in FIG. 16, the dependent information holding unit 231 holds information indicating the mutual dependency of the alarm information corresponding to each unit 420. In FIG. 16, the alarm information input via the interface control unit 412 has been input to the cancellation detection unit 233 together with the alarm detection unit 212. Based on the newly received alarm information and the corresponding alarm information held in the alarm information holding unit 211, the cancellation detection unit 233 detects that the fault in the corresponding unit has been eliminated, and masks the detection result with mask control. Notify unit 232. The mask control unit 232 illustrated in FIG. 16 sends the mask information to the mask storage unit 234 based on the information stored in the above-described dependent information storage unit 231 and the detection result notified from the alarm detection unit 212 and the cancellation detection unit 233. An appropriate value is set to a mask flag provided corresponding to the unit. The polling control unit 235 illustrated in FIG. 16 refers to the above-described mask holding unit 234 for each monitoring number sequentially generated in the polling control unit 235, and according to the value of the mask flag corresponding to the monitoring number, An appropriate instruction is sent to the interface control unit 412.
[0075]
Here, the correspondence between each unit shown in FIG. 16 and each unit shown in FIG. 3 will be described.
When the interface control unit 412 shown in FIG. 16 operates according to the instruction from the monitoring control unit 230, the function of the polling execution unit 111 shown in FIG. 3 is performed. Further, the alarm information holding unit 211, the alarm detection unit 212, and the cancellation detection unit 233 illustrated in FIG. 16 correspond to the event detection unit 118 illustrated in FIG. 3, and the dependent information storage unit 231 illustrated in FIG. 3 corresponds to the dependent information holding means 131 shown in FIG. In addition, the polling control unit 235 controls the operation of outputting an instruction for performing polling as described later by the polling control unit 235 according to the information set in the mask holding unit 234 by the mask control unit 232 illustrated in FIG. The functions of the mask setting means 132 and the mask releasing means 133 shown are fulfilled.
[0076]
Next, the operation of the third alarm information collecting device shown in FIG. 16 will be described.
FIG. 17 is a flowchart showing the operation of the third alarm information collecting device.
The polling control unit 235 illustrated in FIG. 16 sets an initial value “1” to the monitoring number i at the beginning of each monitoring cycle (Step 341). Next, the polling control unit 235 refers to the mask flag held in the mask holding unit 234 corresponding to the monitoring number i, and determines whether the alarm information corresponding to the monitoring number i is masked (step 342).
[0077]
In the case of a negative determination in step 342, the polling control unit 235 specifies the monitoring number i, and inputs an instruction to perform polling to the unit 420 indicated by the monitoring number i to the interface control unit 412. In response, the interface control unit 412 polls the above-described unit 420 to collect alarm information (step 343).
[0078]
As described above, the polling control unit 235 performs polling in accordance with the value of the mask flag held in the mask holding unit 234, so that the corresponding alarm information is output by the mask flag received in the mask holding unit 234. Polling can be performed only for alarm information indicating that no masking is performed.
[0079]
The alarm information collected in step 343 is held in the alarm information holding unit 211 and passed to the alarm detection unit 212 and the cancellation detection unit 233.
At this time, when the occurrence of a failure is detected by the alarm detection unit 212 (the affirmative determination in step 344), the mask control unit 232 refers to the dependent information storage unit 231 and may depend on the monitoring number i. The indicated alarm information is searched (step 345), and then the corresponding alarm information is masked in the mask flag provided in the mask holding unit 234 corresponding to the alarm information indicated by the search result in step 345. The value of the effect is set (step 346).
[0080]
In this way, a value indicating that each alarm information is masked is set in the mask flag provided in the mask holding unit 234 in accordance with the alarm information dependent on the alarm information detected that the failure has occurred. In the subsequent processing, these pieces of alarm information can be excluded from monitoring targets. As a result, it is possible to collect, at a relatively high frequency, main alarm information that has been detected as having a failure, so that warning information indicating that the failure has been resolved can be quickly collected, and an alarm relating to the corresponding unit can be collected. The difference between the timing at which the information has changed and the timing at which reports on these phenomena are collected can be reduced. As a result, it is possible to reduce the difference between the failure occurrence status of each unit and the failure occurrence status indicated by the alarm information collected by the alarm information collection device. This change in the alarm information can be quickly grasped.
[0081]
On the other hand, when the alarm information collected in step 343 indicates that no failure has occurred (negative determination in step 344), the alarm information holding unit 211 When the occurrence of a failure is indicated by the held alarm information, the elimination detection unit 233 detects the elimination of the failure related to the corresponding alarm information (step 347). In this case, the mask control unit 232 refers to the dependent information holding unit 231 to search for alarm information indicated to be dependent on the monitoring number i (step 348), and then displays the alarm information in the search result in step 348. The mask flag provided in the mask holding unit 234 is cleared in accordance with the set alarm information, and the mask set in the corresponding alarm information is released (step 349).
[0082]
In this way, when the elimination of the corresponding fault is indicated by the main alarm information, the masking of the alarm information dependent on the alarm information can be released, and the alarm information can be returned to the monitoring target. .
On the other hand, after completion of the mask setting process (steps 345 and 346) or the mask release process (steps 348 and 349), the mask control unit 232 returns the process to the polling control unit 235, and accordingly, the polling control unit 235 Determines whether the polling process for the monitoring target has completed one cycle based on the comparison result of the monitoring number i and the total number N of the monitoring targets (step 350). When the monitoring number i has not reached the total number N (negative determination in step 350), the polling control unit 235 increments the monitoring number i (step 351), returns to step 342, and corresponds to the new monitoring number. Continue polling. On the other hand, in the case of an affirmative determination in step 350, the polling control unit 235 returns to step 341 to initialize the monitoring number i, and starts processing relating to a new monitoring cycle.
[0083]
The feature of the third alarm information collecting device shown in FIG. 16 is that the monitoring target is narrowed down when a fault occurs. This feature is particularly important depending on some main alarm information. This is effective when the large number of subordinate alarm information changes according to the change of the main alarm information described above. In the case where the alarm information has a hierarchical structure as described above, when a failure corresponding to the main alarm information occurs, the lower-level alarm information also indicates the occurrence of the failure. By removing the subordinate alarm information from the monitoring target, it is considered that the substantial amount of the collected information does not change.
[0084]
Next, a description will be given of an alarm information collection device that is effective in a duplex system.
FIG. 18 shows an embodiment of a fourth alarm information collecting device according to the present invention.
Note that among the constituent elements shown in FIG. 18, the same components as those shown in FIG. 5 or FIG. 20 are denoted by the same reference numerals shown in FIG. 5 or FIG. 20, and the description thereof is omitted.
[0085]
The alarm information collecting device shown in FIG. In the monitoring control unit 240, the active information holding unit 241 receives information indicating whether each unit 420 belongs to the active system or the standby system from a higher-level device (not shown), and It is held corresponding to the unit 420. Also, the skip counter 242 shown in FIG. 18 counts the number of times that the polling control unit 243 skips polling, which will be described later, for each unit, and notifies the polling control unit 243 of the counting result. Based on the skip count corresponding to each unit obtained by the skip counter 242 and the information held in the working information holding unit 241 described above, the polling control unit 243 issues an instruction to execute polling to each unit 420. Is performed, or a skip operation is performed to shift to processing for the next unit without outputting an instruction for polling.
[0086]
Here, the correspondence relationship between each unit shown in FIG. 18 and each unit shown in FIG. 4 will be described.
When the interface control unit 412 shown in FIG. 18 operates according to the instruction from the monitoring control unit 240, the function of the polling execution unit 111 shown in FIG. 4 is performed. The active information holding unit 241 illustrated in FIG. 18 corresponds to the active information holding unit 134 illustrated in FIG. The skip counter 242 and the polling control unit 243 shown in FIG. 18 correspond to the skip control unit 135 shown in FIG.
[0087]
Next, the operation of the alarm information collecting device shown in FIG. 18 will be described.
FIG. 19 is a flowchart showing the operation of the fourth alarm information collecting device.
Prior to starting the alarm information collecting operation shown in FIG. 19, the polling control unit 243 shown in FIG. 18 sets the count value corresponding to each unit 420 of the skip counter 242 to an initial value (for example, a numerical value “0”). ) Is set.
[0088]
When starting each monitoring cycle, the polling control unit 243 sets an initial value (for example, a numerical value “1”) to the monitoring number i indicating the unit to be monitored (step 361). Next, the polling control unit 243 determines whether switching between the active system and the standby system has been performed based on the notification from the higher-level device (step 362), and is notified that the switching has occurred. In this case (Yes in step 362), the count value corresponding to each unit 420 of the skip counter 242 is initialized (step 363), and the process proceeds to step 364. On the other hand, in the case of a negative determination in step 362, the process proceeds to step 364 as it is.
[0089]
In step 364, the polling control unit 243 refers to the active information holding unit 241 and refers to the unit 420 indicated by the monitoring number i. _i It is determined whether or not belongs to the active system.
For example, the unit 420 indicated by the monitoring number i _i Is indicated by the information held in the active information holding unit 241, the polling control unit 243 makes an affirmative determination in step 364, and performs monitoring via the interface control unit 412. Unit 420 indicated by number i _i (Step 365). Next, the polling control unit 243 increments the monitoring number i (step 366), and thereafter determines whether the monitoring number i has reached the total number N of units (step 367).
[0090]
If the monitoring number i after the increment is less than the total number n of units, the polling control unit 243 returns to step 362 as a negative determination in step 367, and performs monitoring processing for the next monitoring number.
On the other hand, based on the information held in the active information holding unit 241 corresponding to the monitoring number i, the corresponding unit 420 _i , The polling control unit 243 proceeds to step 368 as a negative determination in step 364 and proceeds to step 420. _i It is determined whether or not the count value of the skip counter 242 corresponding to is smaller than the upper limit value d of the skip count.
[0091]
Unit 420 _i When the count value of the skip counter 242 corresponding to the above is less than the above-described upper limit value d (affirmative determination in step 368), the polling control unit 243 sets the unit 420 indicated by the monitoring number i. _i Skip polling for. At this time, the polling control unit 243 instructs the skip counter 242 to add the corresponding system value, and accordingly, the skip counter 242 sets the unit 420 _i Is incremented (step 369).
[0092]
On the other hand, unit 420 _i When the count value of the skip counter 242 corresponding to the above has reached the above-described upper limit value d (negative determination in step 368), the polling control unit 243 determines that the polling for the corresponding unit has already been skipped a sufficient number of times. Then, polling is performed for the corresponding unit via the interface control unit 412, and alarm information is collected (step 370). Next, the polling control unit 243 instructs the skip counter 242 to clear the corresponding count value, and the unit 420 corresponding to the monitoring number i. _i Initialize the skip count for
[0093]
After the end of the processing of step 371 and the end of the processing of step 369 described above, the polling control section 243 proceeds to step 366 and prepares for the processing corresponding to the next monitoring number.
In the above example, if the upper limit value of the number of skips is d = 3, the polling of the unit 420 belonging to the standby system is skipped in the first to third monitoring periods, and the unit 420 belonging to the active system is skipped. Are polled, and in the fourth monitoring cycle, polling is performed on all the units 420.
[0094]
As described above, according to the fourth alarm information collecting apparatus, the alarm information on the unit 420 belonging to the active system can be collected more frequently than the alarm information corresponding to the unit belonging to the standby system.
Here, in the duplicated system, the probability of a change in the alarm information regarding the unit 420 belonging to the active system in operation is much higher than the probability of a change in the alarm information regarding the unit 420 belonging to the standby system. It is considered to be large. Therefore, as described above, the alarm information relating to the unit 420 belonging to the active system is more than the disadvantage of skipping the operation of collecting the alarm information relating to the unit 420 belonging to the standby system, thereby overlooking the change in the alarm information relating to the unit 420 belonging to the standby system. The effect obtained by increasing the frequency with which information is collected is likely to be much greater.
[0095]
Further, for the standby system, the collection of alarm information can be completely skipped. In this case, in the case of a negative determination in step 364 shown in FIG. 19, the polling control unit 243 proceeds to step 366 and prepares for the process corresponding to the next monitoring number.
With respect to the above description, the following items are further disclosed.
[0096]
(Supplementary Note 1) In an alarm information collecting apparatus configured to control an operation in which a polling control unit 110 collects alarm information by polling of each monitoring item by a polling execution unit 111 based on a schedule regarding monitoring timings of a plurality of monitoring items. ,
Failure detection means 112 for detecting the occurrence of a failure based on alarm information obtained by polling each monitoring item;
Each time the failure detection unit 112 detects the occurrence of a failure, the polling control unit 110 sets a monitoring timing corresponding to the additional polling for the monitoring item in which the failure is detected, to a monitoring timing assigned to the monitoring item in which the failure is detected. The configuration includes a continuous insertion unit 113 that performs adjustment for continuous insertion at a timing with respect to a schedule.
An alarm information collecting device, characterized in that:
[0097]
(Supplementary Note 2) In the alarm information collection device described in Supplementary Note 1,
The continuous insertion means 113
An adding unit 121 for adding an additional polling for a corresponding monitoring item to a schedule every time the occurrence of a failure is detected by the failure detecting unit 112;
When the number of additional polls added by the adding unit 121 reaches a predetermined number, an additional stopping unit 122 for stopping the adding operation by the adding unit is provided.
An alarm information collecting device, characterized in that:
[0098]
(Supplementary Note 3) In the alarm information collection device described in Supplementary Note 1,
The schedule provided in the polling control means 110 has a fixed monitoring timing assigned in advance to each monitoring item, and a waiting time when it is not assigned to any monitoring item that can be additionally assigned to any monitoring item. Formed from a predetermined number of preliminary timings,
Each time the failure detecting unit 112 detects the occurrence of a failure, the continuous insertion unit 113 assigns the spare timing included in the schedule as the monitoring timing corresponding to the additional polling for the corresponding monitoring item. It is a configuration with
An alarm information collecting device, characterized in that:
[0099]
(Supplementary Note 4) An alarm information collecting apparatus configured to control an operation in which a polling control unit 110 collects alarm information by polling of each monitoring item by a polling execution unit 111 based on a schedule regarding monitoring timings of a plurality of monitoring items. ,
Item detection means 115 for detecting a monitoring item in which a failure has occurred based on alarm information obtained by polling for each monitoring item;
A timing calculating means for calculating a position obtained by equally dividing a polling cycle based on the monitoring timing assigned to the monitoring item for each monitoring item detected by the item detecting means as an additional polling timing; Prepare,
The polling control unit 110 includes a schedule adjustment unit 117 that inserts additional polling into the schedule at the timing calculated by the timing calculation unit 116.
An alarm information collecting device, characterized in that:
[0100]
(Supplementary Note 5) In the alarm information collection device described in Supplementary Note 4,
The schedule adjusting unit 117 is configured to include an additional limiting unit 124 that limits the number of additional polling inserted into the schedule to a predetermined number in accordance with the calculation result of the timing calculating unit 116.
An alarm information collecting device, characterized in that:
[0101]
(Supplementary Note 6) In the alarm information collection device described in Supplementary Note 4,
The schedule provided in the polling control means 110 has a fixed monitoring timing assigned in advance to each monitoring item, and a waiting time when it is not assigned to any monitoring item that can be additionally assigned to any monitoring item. Formed from a predetermined number of preliminary timings,
The schedule adjusting unit 117 includes a transfer setting unit 125 that deletes the preliminary timing included in the schedule and replaces the additional polling for the corresponding monitoring item with the timing calculated by the timing calculating unit 116 and sets the polling. Configuration
An alarm information collecting device, characterized in that:
[0102]
(Supplementary Note 7) In an alarm information collecting apparatus configured to control an operation in which a polling control unit 110 collects alarm information by polling of each monitoring item by a polling execution unit 111 based on a schedule regarding monitoring timings of a plurality of monitoring items. ,
An event detecting unit 118 that detects a change in an operation state including occurrence of a failure and elimination of the failure based on alarm information obtained by polling each monitoring item;
Polling control means 110
For each of the monitoring items, each time the occurrence of a failure in any one of the monitoring items is detected by the event detecting unit 118, the dependent information holding unit 131 refers to the dependent information holding unit 131 indicating the mutual dependency relationship. Mask setting means 132 for selectively masking the monitoring timing set in the schedule corresponding to the monitoring item determined to be dependent on the detected monitoring item;
With respect to the monitoring item whose failure has been resolved by the event detecting means 118, the monitoring information is set to the monitoring timing included in the schedule corresponding to the monitoring item determined to be dependent on the detected monitoring item with reference to the dependent information holding means 131. And a mask releasing means 133 for releasing the mask.
An alarm information collecting device, characterized in that:
[0103]
(Supplementary Note 8) In an alarm information collecting apparatus configured to control an operation in which a polling control unit 110 collects alarm information by polling of each monitoring item by a polling execution unit 111 based on a schedule regarding monitoring timing of a plurality of monitoring items. ,
Polling control means 110
Working information holding means 134 for holding information indicating whether the system is a working system or a standby system for all monitoring items;
A skip control unit 135 for skipping a monitoring timing set in a schedule for a monitoring item belonging to the standby system at a predetermined rate based on the information held in the working information holding unit 134.
An alarm information collecting device, characterized in that:
[0104]
【The invention's effect】
As described above, according to the first alarm information collection device according to the present invention, it is possible to continuously execute polling for a monitoring item indicating that a failure has occurred by alarm information. With the elimination of the failure in the monitoring item, it is possible to quickly collect alarm information indicating that. Thereby, especially in a system including a monitoring item in which a failure having a short duration is highly likely to occur, it is possible to reduce the difference between the timing at which the failure is resolved and the timing at which alarm information is collected.
[0105]
Further, according to the second alarm information collection device according to the present invention, it is possible to execute a plurality of polling evenly within one monitoring period for a monitoring item indicated by the alarm information that a failure has occurred. Therefore, in a system including a monitoring item in which a failure having a relatively long duration is highly likely to occur, alarm information indicating the elimination of the failure in the monitoring item is efficiently collected, and the timing at which the failure is resolved and the timing related to the It is possible to reduce the deviation from the timing at which the alarm information is collected.
[0106]
Further, in the first and second alarm information collecting devices described above, by providing means for limiting the number of times of additional polling to be executed, additional polling for a monitoring item indicating that a failure has occurred can be performed by other means. It is possible to limit an increase in the interval at which the polling of the monitoring item is executed.
[0107]
On the other hand, the third alarm information collecting apparatus according to the present invention masks polling for a monitoring item whose status changes according to the status of the monitoring item when a failure occurs in the main monitoring item, and Polling can be executed only for a limited number of monitoring items. As a result, the frequency of collecting the alarm information on the upper monitoring item in which the fault has occurred is temporarily increased, and the difference between the timing when the fault is eliminated and the timing when the alarm information on the fault is collected is reduced. Can be.
[0108]
Further, the fourth alarm information collecting apparatus according to the present invention can perform polling at different frequencies for monitoring items belonging to the active system and monitoring items belonging to the standby system. As a result, it is possible to frequently collect the alarm information on the monitoring items of the active system in which a failure is highly likely to occur. It is possible to reduce the deviation from the timing of collection.
[0109]
The first to fourth alarm information collecting devices described above reduce the difference between the timing at which the alarm information changes due to the occurrence or elimination of the fault and the timing at which the alarm information is collected, thereby increasing the number of monitoring items. It is possible to accurately grasp the state of occurrence of a failure in the system.
[Brief description of the drawings]
FIG. 1 is a principle block diagram of a first alarm information collection device according to the present invention.
FIG. 2 is a principle block diagram of a second alarm information collection device according to the present invention.
FIG. 3 is a principle block diagram of a third alarm information collection device according to the present invention.
FIG. 4 is a principle block diagram of a fourth alarm information collecting device according to the present invention.
FIG. 5 is a diagram showing a first embodiment of an alarm information collection device according to the present invention.
FIG. 6 is a flowchart showing the operation of the first alarm information collecting device.
FIG. 7 is a timing chart for explaining the operation of the first alarm information collecting device.
FIG. 8 is a diagram showing another embodiment related to the first alarm information collecting device.
FIG. 9 is a flowchart illustrating an operation of another embodiment related to the first alarm information collection device.
FIG. 10 is a diagram showing an embodiment of a second alarm information collecting device according to the present invention.
FIG. 11 is a flowchart showing the operation of the second alarm information collecting device.
FIG. 12 is a timing chart for explaining the operation of the second alarm information collecting device.
FIG. 13 is a diagram illustrating an operation of inserting additional polling.
FIG. 14 is a diagram showing another embodiment of the second alarm collection device.
FIG. 15 is a flowchart showing an operation of another embodiment of the second alarm information collecting device.
FIG. 16 is a diagram showing an embodiment of a third alarm information collecting device according to the present invention.
FIG. 17 is a flowchart showing the operation of the third alarm information collecting device.
FIG. 18 is a diagram showing an embodiment of a fourth alarm information collecting device according to the present invention.
FIG. 19 is a flowchart showing the operation of the fourth alarm information collecting device.
FIG. 20 is a diagram showing a configuration of a conventional general alarm information collecting device.
FIG. 21 is a timing chart for explaining a conventional alarm information collecting operation.
[Explanation of symbols]
110 Polling control means
111 Polling execution means
112 Failure detection means
113 Continuous insertion means
121 additional means
122 Additional stopping means
123 Assigning means
115 item detection means
116 Timing Calculation Means
117 Schedule adjustment means
124 Additional restriction means
125 Transfer setting means
118 event detection means
131 Dependent information holding means
132 Mask setting means
133 Mask release means
134 Active information holding means
135 skip control means
210, 220, 230, 240, 411 monitoring control unit
211 Alarm information storage
212 Alarm detector
214, 217 sequential control unit
215 Insertion control unit
216 counter
222 Reference number calculation unit
223 Alarm judgment unit
224 additional instruction section
225 counter
231 Dependent information holding unit
232 Mask control unit
233 Resolution detection unit
234 Mask holder
235 Polling control unit
241 Active information holding unit
242 skip counter
243 Polling control unit
410 Alarm information collection device
412, 422 Interface control unit (I / F)
420 units
421 Unit control unit
423 I / O register

Claims (4)

An alarm information collection device configured to control an operation of collecting alarm information by polling for each of the monitoring items by a polling execution unit based on a schedule related to monitoring timings of a plurality of monitoring items,
Failure detection means for detecting the occurrence of a failure based on alarm information obtained by polling each monitoring item;
The polling control unit assigns a monitoring timing corresponding to the additional polling for the monitoring item in which the failure is detected to the monitoring item in which the failure is detected, each time the occurrence of the failure is detected by the failure detecting unit. An alarm information collecting apparatus, comprising: a continuous insertion unit that adjusts the schedule so as to continuously insert the monitoring timing into the schedule. An alarm information collection device configured to control an operation of collecting alarm information by polling for each of the monitoring items by a polling execution unit based on a schedule related to monitoring timings of a plurality of monitoring items,
Item detection means for detecting a monitoring item having a failure based on alarm information obtained by polling each monitoring item;
Timing monitoring means for calculating, for each monitoring item detected by the item detecting means, a position obtained by equally dividing a polling cycle based on the monitoring timing assigned to the monitoring item as an additional polling timing; ,
The alarm information collecting apparatus, wherein the polling control means includes a schedule adjusting means for inserting the additional polling into the schedule at the timing calculated by the timing calculating means. An alarm information collection device configured to control an operation of collecting alarm information by polling for each of the monitoring items by a polling execution unit based on a schedule related to monitoring timings of a plurality of monitoring items,
Based on the alarm information obtained by polling each monitoring item, an event detection unit that detects a change in an operation state including occurrence of a failure and elimination of the failure,
The polling control means,
Dependency information holding means indicating a mutual dependency relationship for all monitoring items,
Each time the occurrence of a failure in any of the monitoring items is detected by the event detecting unit, the dependent information holding unit is referenced, and Mask setting means for selectively masking the monitoring timing set in the schedule,
For the monitoring item for which the resolution of the failure has been detected by the event detecting means, refer to the dependent information holding means, and set the monitoring timing included in the schedule in accordance with the monitoring item determined to be dependent on the detected monitoring item. An alarm information collecting apparatus, comprising: a mask release unit for releasing a set mask. An alarm information collection device configured to control an operation of collecting alarm information by polling for each of the monitoring items by a polling execution unit based on a schedule related to monitoring timings of a plurality of monitoring items,
The polling control means,
Working information holding means for holding information indicating whether the system is a working system or a standby system for all monitoring items;
A skip control unit that skips a monitoring timing set in the schedule at a predetermined rate for a monitoring item belonging to a standby system based on information held in the working information holding unit. Characteristic alarm information collecting device.

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