JP3195250B2 - Remote monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an equipment sensor and a terminal device provided in a plurality of buildings, respectively, and connected to the terminal device via a communication line to remotely detect the occurrence of an abnormality in the equipment. The present invention relates to a remote monitoring device having a monitoring center for monitoring.

[0002]

2. Description of the Related Art Generally, in a remote monitoring device, a sensor for detecting an abnormality of equipment such as an elevator and a terminal device to which the sensor is connected are provided in each of a plurality of buildings, and a communication line is connected to the terminal device. There is a monitoring center connected via the monitoring center. In such a remote monitoring device, when a sensor in the building detects a change in the operation state of the equipment, that is, an abnormality, a change signal of the state of the equipment, i.e., an abnormality notification, is sent from a terminal device in the same building. Since the information is transmitted via the communication line, the abnormality notification is received by the monitoring center to remotely monitor the abnormality of the equipment.

Conventionally, in the above-described remote monitoring apparatus, as described in, for example, Japanese Patent Laid-Open No. 4-170250, a line check executing means for issuing a periodic alert, and starting only during a predetermined time zone. A monitoring center provided with a timer for activating the line check execution means has been proposed. In the proposed remote monitoring device, the timer of the monitoring center is started during the night time when the occurrence of abnormalities is relatively small, and the operation of the line check execution means is performed several times a day to about once a week. A periodic notification is sent from the monitoring center to the terminal device at regular intervals, thereby checking whether the state of the communication line for selectively connecting the monitoring center and the terminal device is normal, and whether the operation of the terminal device is normal. To check.

Further, as described in, for example, Japanese Patent Application Laid-Open No. 4-86996, there are provided a line check executing means for issuing a periodic notification and a timer for operating the line check executing means at a predetermined cycle. Some have been proposed. In the proposed remote monitoring device, a timer is started at a predetermined cycle, and the line check execution means is activated to perform a periodic notification from the monitoring center to the terminal device and a periodic notification from the terminal device to the monitoring center. Are alternately performed every day, thereby confirming the transmitting function and the receiving function of the terminal device.

[0005]

However, in the above-mentioned prior art, a plurality of sensors distributed in a specific area due to the occurrence of a power failure, an earthquake or the like detect abnormalities and many abnormalities are generated from the terminal device. When a report is transmitted via a communication line and continues for a certain number of times or more in a certain period of time, that is, when a so-called centralized report occurs, it is delayed to receive the above-mentioned abnormal report at the monitoring center and the monitoring of the equipment is delayed. There is a problem in that work is hindered, and it is also difficult to perform a communication test by transmitting a periodic alert according to a predetermined transmission schedule. As a result, it is no longer possible to check whether the communication line or terminal device is normal, and the monitoring center determines that an error has occurred in the communication line or terminal device. was there.

[0006] In particular, in a remote monitoring device that issues a periodic notification from each terminal device to the monitoring center, the control of the periodic notification of each terminal device cannot be performed on the monitoring center side, and the communication line is always constant for the periodic notification. For example, during the daytime, when the number of abnormal alerts from the terminal device is relatively large, the number of abnormal alerts transmitted to the monitoring center due to the occurrence of the above-described concentrated alert temporarily increased. In this case, the problem that the reception of the abnormal notification is delayed and the monitoring work of the equipment is hindered is remarkable.

[0007] The present invention has been made in view of such a situation in the prior art, and a first object of the present invention is to provide a system in which even if the number of alarms received at the monitoring center increases due to an increase in the number of terminal devices, the equipment is installed. It is an object of the present invention to provide a remote monitoring device that can promptly receive an alarm report accompanying a device error occurrence without delay at a monitoring center.

[0008] A second object of the present invention is to provide a method for efficiently restoring an equipment base in a specific area to a dispatch base that is in charge of an abnormality recovery work of the equipment even if the abnormality is concentrated in the equipment. An object of the present invention is to provide a remote monitoring device capable of transmitting an instruction.

[0009]

In order to achieve the first object, the invention according to claim 1 of the present invention is provided in each building distributed in a plurality of areas, and detects an abnormality in equipment. And a terminal device for outputting an alarm notification in response to the detection of an abnormality of the sensor, and a monitoring center connected to the terminal device via a plurality of communication lines and for remotely monitoring an abnormality of the equipment. A remote monitoring device having a communication test means for performing a periodic communication test by transmitting a periodic alert to the terminal device via the plurality of communication lines to the monitoring center, Line utilization measuring means for measuring the utilization rate of the communication line used for the abnormal alert among a plurality of communication lines, and when the measurement value of the line utilization measuring means exceeds a predetermined value, Operation of the communication test means Operation control means for stopping the communication, and schedule resetting means for resetting the schedule, wherein the communication test is performed in accordance with the reset transmission schedule when the measured value of the line utilization measuring means becomes a predetermined value or less. Is restarted.

According to the present invention having the above-described structure, when the usage rate of the communication line used for the alarm notification exceeds a predetermined value in a plurality of communication lines to which the monitoring center is connected, the operation control is performed. The operation of the communication test means is stopped by the means, that is, the communication test from the monitoring center to each terminal device is stopped, thereby suppressing the use of the plurality of communication lines for regular alerting, and Since the switching to the reception of the abnormality report is performed, the abnormality report accompanying the occurrence of the abnormality of the equipment can be promptly received without delay at the monitoring center. Further, since the transmission schedule of the periodic alert is reset by the schedule resetting means, when the measured value of the line utilization measuring means becomes a predetermined value or less, the communication test is performed according to the reset schedule. Can be resumed smoothly.

In order to achieve the second object, the invention according to claim 2 of the present invention is provided in each building distributed in a plurality of areas and detects a sensor of equipment equipment abnormality. A terminal device for outputting an alarm notification in response to detection of an abnormality in the sensor, a monitoring center connected to the terminal device via a plurality of communication lines, and for remotely monitoring an abnormality of the equipment; And a plurality of dispatch bases in charge of the abnormality recovery work of the equipment in response to an instruction from the server, and transmitting a periodic report to the monitoring center to the terminal device via the plurality of communication lines. In a remote monitoring device provided with a communication test means for performing a periodic communication test by using the communication line, the usage rate of the communication line used for the abnormality alert among the plurality of communication lines is measured, Is a predetermined value A line usage rate measuring unit that outputs a detection signal when the communication signal is received, an operation control unit that stops the operation of the communication test unit in response to the output of the detection signal, and the plurality of communication units in response to the output of the detection signal. Means for counting the number of receptions of the abnormal notification received via the line for each of the plurality of areas; and when the count value of the reception counting means for each area exceeds a predetermined value, the received abnormal occurrence Area-based reception storage means for storing the information for each of the plurality of areas, and at least one of when the number of storages in the area-based reception storage means exceeds a predetermined number and when a predetermined time has elapsed since the start of storage. A batch transmission means for transmitting the abnormality report stored in the separate reception storage means to the dispatch base in the corresponding area is provided.

In the present invention configured as described above, when the usage rate of the communication line used for alarm notification among a plurality of communication lines to which the monitoring center is connected exceeds a predetermined value,
The operation of the communication test unit is stopped by the operation control unit, the communication line is switched to the reception of the abnormal notification only, and the number of abnormal reports received via these communication lines is counted by the reception counting unit for each region. Counting for a plurality of regions, when the number of receptions for each region exceeds a predetermined value, the above-mentioned abnormal alert is stored for each of a plurality of regions by the reception storage device for each region, and the number of records stored in the reception storage device for each region. When the number exceeds a predetermined number and / or when a predetermined time has elapsed from the start of storage, the batch transmission unit collectively transmits the abnormality alerts stored in the regional reception storage unit to the dispatch base in the corresponding region. I do. As a result, even when an abnormality occurs in a concentrated manner in the equipment in a specific area, a recovery instruction can be efficiently transmitted to a dispatch base that is in charge of the abnormality recovery work on the equipment in the area.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a remote monitoring apparatus according to the present invention. FIG. 1 is a block diagram showing a remote monitoring device according to an embodiment of the present invention, FIG. 2 is a flowchart showing a part of a procedure for processing an abnormal alert received by a monitoring center, and FIG. FIG. 4 is a flowchart illustrating the operation of measuring the line usage rate of the communication line to which the monitoring center is connected, and FIG. 5 is a diagram illustrating the monitoring of the centralized alarm based on the abnormal alarm received by the monitoring center. Flowchart describing the operation,
FIG. 6 is a flowchart illustrating an operation of outputting a periodic alert from the monitoring center. Note that the portions A and B in FIG. 2 and the portions A and B in FIG. 3 are respectively continuous, that is, when the determination result in the step S8 in FIG.
The process proceeds to step S14 in FIG. 3, and proceeds to “end” in FIG. 2 after step S16 in FIG.

The remote monitoring device of the present embodiment shown in FIG.
A terminal device group 1, a monitoring center 2 connected to the terminal device group 1 via a plurality of communication lines L1, a telephone station 4 and a plurality of communication lines L2, and the monitoring center 2 and the communication lines L3 and L4. And a plurality of dispatch bases 3 connected via a telephone office 5.

Although not shown, the terminal device group 1 is provided in each building distributed in a plurality of regions, and responds to a sensor for detecting an abnormality of equipment and a sensor for detecting an abnormality of a sensor in the same building. And a plurality of terminal devices 1a to 1n each outputting an abnormal alert.

The above-mentioned monitoring center 2 includes a communication device 21,
Alarm list display device 22, other communication devices 23, periodic alarm command device 24, processing device 25, and multiple operation devices 26
It has. These devices 21 to 26 are connected to a connection line 27.
And a so-called client-server system in which the processing device 25 is a server and the plurality of operation devices 26 and the dispatch base 3 are clients.

The communication device 21 is connected to a plurality of communication lines L2, receives an abnormal notification output from the terminal devices 1a to 1n, and has a counter 21a. 21a, a line utilization rate measuring means for measuring a line utilization rate used for an abnormal alert in a plurality of communication lines L2, and a region for counting the number of receptions of the abnormal alert for each of a plurality of regions Another reception counting means is constituted.

The processing device 25 includes a periodic alarm transmitted from the communication device 21 to the terminal devices 1a to 1n, and the terminal device 1a
1 to 1n to the communication device 21, based on the abnormality notification, the information processing unit 25 a that creates history information of equipment and the like, so-called alarm information that can be understood by humans, and the counter unit 21 a Terminal device 1 based on the measurement result of
An abnormal alert is issued from the communication line L from many of the devices a to 1n.
1, a centralized alert monitoring unit 25b for monitoring whether a state is transmitted via the L2, that is, whether a so-called centralized alert has occurred, and a periodic alert for one hour, for example, from among all the terminal devices 1a to 1n. A schedule processing unit 25c for searching and selecting an item that needs to be executed, and the alarm processing unit 25a
And a storage unit 25d for storing the alarm information created in step (1).

The alarm list display device 22 displays a list of alarm information created by the alarm processor 25a. In the other communication device 23, the alert information created by the alert processing unit 25a is information relating to a job under the jurisdiction of the dispatch base 3, that is, some action is taken at the dispatch base 3 based on the alert information. When it is required to take the information, the above-mentioned alert information is transmitted to the dispatch base 3, and the response result to the alert information is received from the dispatch base 3.

The periodic notification command device 24 responds to an output command from the schedule processing section 25c by using terminal devices 1a to 1a.
The transmission schedule of the periodic notification for n is created, and the periodic notification is transmitted from the communication device 21 to the terminal devices 1a to 1n according to the transmission schedule.

In each of the plurality of operating devices 26, the alert information created by the alert processing unit 25a is information relating to a job under the control of the monitoring center 2, that is, based on the alert information, When it is required to take any kind of response, a data display unit 26a for displaying the above-mentioned alarm information and a history record of the treatment for the alarm information displayed on the data display unit 26a, so-called correspondence input, And an operation input unit 26b for notifying the schedule processing unit 25c of detection and release of the centralized alert by manual operation of a controller of the monitoring center 2.

Each of the plurality of dispatch bases 3 is arranged for each of a plurality of regions, and each dispatch base 3 has a maintenance person who performs an abnormal recovery operation of the equipment. Further, each dispatch base 3 includes a communication device 31 and an operation device 32
And these communication device 31 and operation device 32
A connection line 33 for AN connection.

The operating device 32 is, like the operating device 26 of the monitoring center 2 described above, when the alarm information created by the alarm processing section 25a is information relating to the business under the control of the dispatch base 3. It has a data display section 32a for displaying the alarm information, and an operation input section 32b for making a corresponding input to the alarm information displayed on the data display section 32a. The communication device 31 receives the alarm information transmitted from the monitoring center 2 and transmits the corresponding information input from the operation input unit 32b to the monitoring center 2.

In this embodiment, FIGS. 2 and 3
According to the processing procedure described above, the occurrence of an abnormality in the equipment is remotely monitored. That is, first, in step S1, for example, an abnormality notification from the terminal device 1a is transmitted to the communication line L.
1, when the communication device 21 of the monitoring center 2 receives the abnormality notification via the connection line 27, the processing device 2
5 is transmitted. In step S2, the processing unit 25 is operated by the alert processing unit 25a to store the storage unit 25d of the processing unit 25.
Based on the monitoring information peculiar to the terminal device 1a stored in the terminal device 1a and the abnormal alarm, the log information and alarm information of the equipment are created, and the alarm list display device 22 is connected via the connection line 27. Send to Next, in step S3, the alarm list display device 22 adds and updates the display of the alarm list, and in step S4, the alarm information created by the alarm processing unit 25a is controlled by the monitoring center 2. If the result of the determination is "YES", that is, if it is required that the monitoring center 2 take some action based on the alarm information, the alarm information is It is transmitted to the operation device 26.

Next, in step S5, the centralized alert monitor 25b determines whether or not the centralized alert has already been detected. If the determination result is "YES", that is, if the centralized alert has already been detected, A series of processes corresponding to the abnormal notification of the above is ended. On the other hand, if the result of the determination in step S5 is "NO", that is, if the centralized alert has not been detected yet, the alert information is displayed on the data display unit 26a in step S6, and the operation input is performed in step S7. Part 26
b, the corresponding input to the alarm information is performed, and the result of the corresponding input is transmitted to the processing device 25 via the connection line 27, and then a series of processing corresponding to the abnormal alarm is terminated.

The result of the determination in step S4 is "N
O ”, that is, when the alarm information is information relating to a task under the control of the dispatch base 3, as step S8,
The centralized alert monitoring unit 25b determines whether or not the centralized alert has already been detected. If the determination result is "YES", that is, if the centralized alert has already been detected, the alert information is immediately sent to the dispatch base 3. Instead of transmitting the information, the alarm information is stored in the storage unit 25d of the processing device 25 in step S9. Next, in step S10, it is determined whether or not the number of storages in the storage unit 25d is a predetermined number, for example, 10 or more. If the determination result is “YES”, that is, if the number of storages is 10 or more, In step S11, the report information stored in the storage unit 25d is transmitted from the communication device 23 to the dispatch base 3 via the communication line L3, and the report information is displayed on the data display unit of the dispatch base 3. 32a, and as a step S12, the operation input unit 32b is displayed on the list of alarm information displayed on the data display unit 32a.
Only the reception confirmation is performed, and the result of the confirmation is transmitted from the dispatch base 3 to the processing device 25 of the monitoring center 2, and then a series of processes corresponding to the above-described abnormal notification is terminated.

On the other hand, if the result of the determination in step S10 is "N
O ”, that is, when the number of storages in the storage unit 25d is less than 10, in step S13, it is determined whether a predetermined time, for example, 10 minutes or more, has elapsed since the storage of the alarm information by the storage unit 25d was started. The determination result is “YES”
That is, even when 10 minutes or more have elapsed, the process proceeds to the above-described procedure S11.

Further, the result of the determination in the step S8 is "N
O ", that is, when the centralized alert monitoring unit 25b has not detected the centralized alert, the process proceeds to step S14 in FIG. 3 to immediately transmit the alert information to the dispatch base 3, and as the procedure S15, the alert is issued. The information is displayed on the data display unit 32a of the dispatch base 3. In step S16, a corresponding input to the alarm information is performed from the operation input unit 32b, and the result of the corresponding input is transmitted from the dispatch base 3 to the processing device 25 of the monitoring center 2, and then the abnormal alarm is responded to. Is completed.

(Operation for Measuring the Line Usage Rate of Communication Line L2, etc.) When the communication device 21 of the monitoring center 2 receives an abnormal notification from at least a part of the terminal devices 1a to 1n, the communication device 21 Is designed to measure the line usage rates of a plurality of communication lines L2 according to the processing procedure shown in FIG. That is, when the communication device 21 of the monitoring center 2 receives an abnormal notification in step S21, the counter unit 21a determines the line usage rate used for the abnormal notification in the plurality of communication lines L2 in step S22. While measuring, the terminal devices 1a to 1
The line occupancy of the communication line L2 occupied by transmission to any one of the communication lines Ln is measured. In step S23, it is determined whether or not the measured line usage rate exceeds a reference value, for example, 40%. If the determination result is "NO", that is, if the line usage rate is 40% or less, as step S24, From the information unique to the terminal devices 1a to 1n included in the abnormality report, it is specified which of the terminal devices 1a to 1n the abnormal report was transmitted from, and the terminal that transmitted the abnormal report. The area where the device is located, that is, the alert area, is specified. Next, in step S25, after increasing the cumulative number of abnormal alerts received in the specified area by one, the measurement processing of the line usage rate or the like is terminated.

On the other hand, if the result of the determination in step S23 is "Y
ES ”, that is, if the measured line utilization rate exceeds 40%, the measured line utilization rate is notified to the periodic notification command device 24 in step S26, and the procedure S2 is performed.
Go to 4.

(Operation for Monitoring Centralized Alerts) When an abnormal alert from at least a part of the terminal devices 1 a to 1 n is received by the communication device 21 of the monitoring center 2, the centralized alert monitoring unit of the processing device 25. Reference numeral 25b monitors the centralized alert according to the processing procedure shown in FIG. That is, in step S31, upon receipt of the above-mentioned abnormal alert,
After the timer T provided in the centralized alarm monitoring unit 25b starts the time counting operation, for example, when 10 minutes elapse, the timer T is activated, and as a step S32, the area-specific area created by the counter unit 21a of the communication device 21 is generated. The centralized alert monitoring unit 25b receives the cumulative number of abnormal alerts received from the communication device 21. Next, in step S33, it is determined whether or not the cumulative number of receptions is a predetermined threshold value, for example, 5 or more, and the determination result is “YES”, that is, the cumulative number of receptions is 5 or more. In this case, if the centralized alert is detected in the area determined as step S34, the procedure proceeds to step S3.
After resetting the timer T to the initial state as 5 and returning the accumulated number of abnormal reports in the determined area to zero at step S36, the monitoring operation of the centralized report is repeated again from step S31.

On the other hand, if the result of the determination in step S33 is "N
O ", that is, if the cumulative number of received messages is less than five, it is determined in step S37 whether a centralized alert has been detected in the determined area. The judgment result is “YE
S ", that is, if the centralized alert has already been detected in the determined area, it is detected in step S38 that the centralized alert has been released in the above-mentioned area, and in step S39, the centralized alert has been detected. After notifying the release to the periodic alarm command device 24 via the connection line 27 of the monitoring center 2, the above-described procedure S35
To reset the timer T to the initial state,
As 6, the accumulated number of abnormal alerts in the determined area is returned to zero, and then, the monitoring operation of the centralized alert is repeated again from the step S31. If the result of the determination in step S37 is "NO", that is, if no concentration alert is detected in the determined area, the process proceeds to step S35.

Further, if the result of the determination in the step S34 is "NO", that is, if no concentrated alert is detected in the determined area, it is determined in step S40 that the concentrated alert is generated in the area. After detecting the occurrence and notifying the occurrence of the centralized alarm to the periodic alarm command device 24 via the connection line 27 of the monitoring center 2 as a step S39, the above-described step S35 is performed.
To go to.

(Operation for Transmitting Periodic Alerts) In parallel with the above-described centralized alert monitoring operation, the schedule processor 25c of the processing device 25 transmits the periodic alerts according to the processing procedure shown in FIG. It has become. That is, in step S41, the schedule processing unit 25c stores the terminal devices 1a to 1n stored in the storage unit 25d of the processing device 25.
Of the regular alert execution time of the terminal devices 1a to 1
1n, for example, a terminal device for which a communication test needs to be performed within one hour is selected, and the selected terminal device is notified to the periodic alarm command device 24 via the connection line 27, and the periodic alarm A transmission schedule for transmitting a periodic report to the selected terminal device by the report command device 24 is created. This transmission schedule is such that the periodic notification to the selected terminal device is completed in one hour, and the line usage rate used for the periodic notification in the plurality of communication lines L2 is within 20%. It is set to be.

Next, in step S42, it is determined whether or not the information indicating that the centralized alert has been generated is manually input from the operation input unit 26b in accordance with the determination of the operator of the monitoring center 2 or the like. , That is, when the information of the concentrated alert is not input from the operation input unit 26b,
In step S43, it is determined whether or not a concentrated alert is detected by the centralized alert monitoring unit 25b. When the determination result is "N
If it is "O", that is, if the centralized alert has not been detected, it is determined in step S44 whether the line usage rate measured by the counter unit 21a has exceeded 40%, and the determination result is "NO". When the line usage rate used for the abnormal alarm is 40% or less, in step S45, the periodic alarm command device 24 selects the periodic alarm from the communication device 21 based on the transmission schedule. The data is transmitted to the terminal device and a communication test is performed.

On the other hand, if the result of the determination in step S42 is "Y
ES ”, that is, the information of the centralized alert is stored in the operation input unit 2
If the input has already been made from step 6b, as step S46, the schedule processing unit 25c selects, among the selected terminal devices, the remaining terminal devices for which the communication test has not yet been completed and other terminal devices, By the time when the next periodic alarming schedule is created by the periodic alarming command device 24, the periodic alarming to the selected remaining terminal devices and other terminal devices is completed, and a plurality of communication lines The transmission schedule of the periodic alert is reset so that the line usage rate used for the periodic alert within L2 is within 20%. Thereafter, when the result of the determination in the step S42 is "NO", that is, when the centralized alarm is released by the operation input unit 26b, the periodic alarm command device 24 generates the periodic alarm based on the reset transmission schedule. The transmission of the report is restarted, and the communication test is performed by transmitting the periodic report from the communication device 21 to the selected terminal device.

Further, when the result of the determination in the above step S43 is "YES", that is, when the centralized alarm monitor 25b detects the centralized alarm, the periodic alarm command device 24
Suspends the transmission of the periodic alert based on the schedule, and proceeds to the step S46 to reset the schedule of the periodic alert. Thereafter, the result of the determination in step S43 is “NO”, that is, the centralized
When the detection of the centralized alarm is released by b, the transmission of the periodic alarm is restarted by the periodic alarm command device 24 based on the reset transmission schedule. A communication test is performed by transmitting to the selected terminal device.

Further, when the result of the determination in the above step S44 is "YES", that is, when the line usage rate used for the abnormal alarm is over 40%, the periodic alarm instructing device 24 is also used. The transmission of the periodic alert is interrupted based on the schedule, and the process proceeds to the step S46 to reset the transmission schedule of the periodic alert. Thereafter, when the result of the determination in the above step S44 becomes "NO", that is, when the line usage rate used for abnormal alarm notification becomes 40% or less, the above-mentioned resetting is performed by the periodic alarm command device 24. The transmission of the periodic report is resumed based on the transmission schedule, and the communication test is performed by transmitting the periodic report from the communication device 21 to the selected terminal device.

In the embodiment configured as described above, if the line usage rate used for abnormality notification exceeds 40% among the plurality of communication lines L2 to which the monitoring center 2 is connected,
By interrupting the communication test from the monitoring center 2 to each of the terminal devices 1a to 1n, the use of the above-mentioned communication line L2 for the periodic notification is suppressed, and these communication lines L2 are dedicated to the reception of the abnormal notification. Since the switching is performed, it is possible to promptly receive the alarm notification accompanying the occurrence of the abnormality in the equipment without delay in the monitoring center 2.

Further, in this embodiment, when the line usage rate used for anomaly notification in the above-mentioned communication line L2 exceeds 40%, the number of receptions of the anomaly notification is divided into a plurality of regions. By counting, the count of the number of received
When the number of cases exceeds the limit, the abnormality alert is temporarily stored in the storage unit 25d. When the number of storages exceeds 10 or when 10 minutes have elapsed from the start of storage, the storage unit 25d
Is transmitted from the communication device 23 of the monitoring center 2 to the dispatch base 3 in the corresponding area in a lump. As a result, even when the abnormalities are concentrated in the equipment in the specific area, the restoration instruction can be efficiently transmitted to the dispatch base 3 in the area.

Also, in this embodiment, since the line usage rate used for anomaly notification in the plurality of communication lines L2 has exceeded 40%, each terminal device 1
After interrupting the periodic notification to a to 1n, the transmission schedule of the subsequent periodic notification is reset and performed, so that the execution of the periodic notification can be smoothly resumed based on the reset transmission schedule.

In this embodiment, when the storage unit 25d of the processing device 25 stores 10 pieces of alarm information, or when 10 minutes or more have elapsed since the storage unit 25d started storing the alarm information, Although the alert information is transmitted from the monitoring center 2 to the dispatch base 3, the number of records in the storage unit 25d and the length of the storage time can be arbitrarily set.

Further, in this embodiment, the procedure S in FIG.
At 41, the terminal device 1a is
The time interval for searching for the periodic alert execution time of 1 to 1n is set to one hour, and the terminal device that needs to perform the communication test during this one hour is selected. The search time interval can be set arbitrarily.

Further, in this embodiment, the periodic report is transmitted from the monitoring center 2 to the terminal devices 1a to 1n via the plurality of communication lines L2 by the above-mentioned periodic report command device 24 and the schedule processing unit 25c. Schedule resetting means for resetting the transmission schedule is configured, and the communication device 21 and the periodic notification command device 24
A communication test means for performing a periodic communication test by transmitting a periodic notification via the plurality of communication lines L2 according to the transmission schedule is configured, and the processing device 25 controls the line usage rate. An operation control means for stopping the operation of the communication test means when the measured value exceeds a predetermined value. When the count value of the reception counting means for each region exceeds a predetermined value, the storage unit 25d constitutes a reception storage device for each region for storing reception signals for a plurality of regions, and the processing device 25d. When the number of pieces of alarm information stored in the storage unit 25d exceeds a predetermined number or when a predetermined time has elapsed from the start of storage, the communication unit 23
A batch transmission means for transmitting the alarm information stored in d to the dispatch base 3 in the corresponding area is configured.

[0045]

As described above, according to the first aspect of the present invention, a line usage rate used for an abnormal alert among a plurality of communication lines to which a monitoring center is connected is used. When the value exceeds a predetermined value, the communication test from the monitoring center to each terminal device is interrupted, thereby suppressing the use of the above-mentioned communication lines for the periodic notification, and making these communication lines dedicated to receiving the abnormal notification. Can be switched to Therefore, even when the number of alarms received at the monitoring center increases due to an increase in the number of terminal devices, the monitoring center does not delay the alarm alarm caused by the occurrence of an abnormality in the equipment with a relatively small number of communication lines. There is an effect that reception can be performed quickly.

Further, according to the invention of claim 2 of the present invention, even when abnormalities are concentrated in equipment in a specific area due to a power failure, an earthquake or the like, the alert information of the area is temporarily stored in the monitoring center. After that, at least one of the case where the number of records of the alarm information exceeds a predetermined number and the case where a predetermined time has elapsed from the start of storage, the stored alarm information is collectively stored at the dispatch base in the corresponding area. Can be sent. Therefore, there is an effect that the restoration instruction can be efficiently transmitted to the dispatch base in the above-mentioned area, and the restoration response by the dispatch base can be performed without fail.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a remote monitoring device according to one embodiment of the present invention.

FIG. 2 is a flowchart illustrating a part of a processing procedure of an abnormal alert received by a monitoring center.

FIG. 3 is a flowchart showing the remaining part of the processing procedure for issuing an abnormality.

FIG. 4 is a flowchart illustrating an operation of measuring a line utilization rate of a communication line to which a monitoring center is connected.

FIG. 5 is a flowchart illustrating an operation of monitoring a centralized alert based on an abnormal alert received by a monitoring center.

FIG. 6 is a flowchart illustrating an operation of outputting a periodic alert from a monitoring center.

[Explanation of symbols]

 1a to 1n Terminal device 2 Monitoring center 3 Dispatch base 4, 5 Telephone station 21 Communication device 21a Counter unit 22 Alarm list display device 23 Communication device 24 Regular alarm command device 25 Processing device 25a Alarm processing unit 25b Centralized alarm monitoring Unit 25c schedule processing unit 25d storage unit (regional reception storage means) L1 to L4 communication line T timer

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-29556 (JP, A) JP-A-4-79656 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 29/06 G08B 25/00-25/14

Claims (2)

(57) [Claims] 1. A sensor provided in each building distributed in a plurality of areas, for detecting an abnormality of equipment, a terminal device for outputting an alarm report in response to the abnormality detection of the sensor, and a terminal device for the terminal device. And a monitoring center that is connected via a plurality of communication lines and remotely monitors an abnormality of the facility equipment. The monitoring center is connected to the terminal device on a regular basis via the plurality of communication lines. In a remote monitoring device provided with a communication test means for performing a periodic communication test by transmitting a report, a usage rate of a communication line used for the abnormal notification is measured among the plurality of communication lines. A line usage rate measuring means for performing the operation, a control means for stopping the operation of the communication test means when a measured value of the line usage rate measuring means exceeds a predetermined value, and a transmission schedule of the periodic alarm is reset. Schedule Remote resetting means, wherein the communication test is restarted according to the reset transmission schedule when the measured value of the line usage rate measuring means becomes a predetermined value or less. Monitoring device. 2. A sensor which is provided in each building distributed in a plurality of areas and detects an abnormality of equipment, a terminal device for outputting an alarm report in response to the abnormality detection of the sensor, and a terminal device A monitoring center that is connected via a plurality of communication lines and remotely monitors the abnormality of the equipment, and a plurality of dispatch bases that are in charge of the abnormality recovery work of the equipment in response to an instruction from the monitoring center. A remote monitoring device, comprising: a communication test unit configured to perform a periodic communication test by transmitting a periodic alert to the terminal device via the plurality of communication lines to the monitoring center. A line usage rate measuring means for measuring a usage rate of a communication line used for the abnormality notification among a plurality of communication lines, and outputting a detection signal when the measured value exceeds a predetermined value; Detection signal Operation control means for stopping the operation of the communication test means in accordance with the output, and, in response to the output of the detection signal, the number of abnormal alerts received via the plurality of communication lines, the number of receptions of the abnormal alerts in the plurality of regions. Region-specific reception counting means for separately counting; region-specific reception storage means for storing, when the count value of the region-specific reception counting means exceeds a predetermined value, the received abnormal alert by the plurality of regions; When the number of storages in the separate reception storage means exceeds a predetermined number,
And at least one of a case where a predetermined time has elapsed from the start of storage, and a batch transmission means for transmitting the abnormality report stored in the reception storage means for each area to a dispatch base in the corresponding area. Monitoring device.