JP2014240315A - Remote monitoring system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitoring system for an elevator that when an earthquake occurs can surely detect and identify a damaged elevator.SOLUTION: Monitoring terminals 1a-1n for monitoring an elevator, which have P-wave detecting portions 2a-2n and S-wave detecting portions 3a-3n, can communicate via a public line network 20 with a monitoring center 10. A processing device 12 of the monitoring center 10 is provided with: a P-wave detecting portion 12a for detecting P-waves from the monitoring terminals; an S-wave detecting portion 12b for detecting S-waves; and an S-wave undetecting portion 12c. The monitoring terminals, based on whether S-wave undetection notification is made or whether or not either one of S-wave detection notification and S-wave undetection notification within prescribed time is made by operation of an operation console 14 by an operator, can select and extract a position to be inspected of installation positions of the elevator.

Description

  The present invention relates to a remote monitoring system for an elevator in consideration of the response in the event of an earthquake.

  The elevator, that is, the elevator, is remotely monitored by a monitoring center. When an earthquake occurs and the shaking caused by this earthquake exceeds a certain level, the car is urgently stopped, and the restoration procedure is performed after the shaking stops. As for the seismic wave, the P wave is transmitted first, and then the S wave is transmitted. Accordingly, the elevator is provided with a P-wave detector and an S-wave detector. When the P-wave detector detects a swing of a predetermined level or more while the elevator is running, it once after traveling to the nearest floor. Stop. After that, when an S wave of a predetermined level or higher is not detected, it is common to release the elevator and return to the normal operation state.

  As an elevator monitoring system, a large number of elevators installed at various locations are managed collectively at an earthquake management center. If a large earthquake occurs, a large number of elevators will be damaged. When such damage occurs, prompt recovery is required, and the earthquake management center must accurately grasp the damage status of each elevator to be managed.

  When a large-scale earthquake occurs, a failure may occur in the P wave detector or the S wave detector. The fluctuation due to the P wave is not so great, and the generation of the P wave is received by the P wave detector. Normally, an S wave is transmitted thereafter, and the S wave detector should detect an S wave above a certain level. If an S wave detector does not detect an S wave within a predetermined time after a P wave of a predetermined level or more is detected, an S wave non-detection report is reported to the earthquake monitoring center, for example, It is disclosed in Patent Document 1.

JP 2007-246183 A

  By the way, when an S wave non-detection report is not made, it does not necessarily mean that an S wave of a predetermined level has not actually occurred. May not be done. If the S-wave seismic wave is not detected by the S-wave detector when relying only on the S-wave non-detection notification as in the prior art described above, it is determined that there was no damage caused by the earthquake. For this reason, it cannot be denied that there is a possibility that an erroneous determination that there is no damage will be made despite some damage to the elevator.

  The present invention has been made in view of the above points, and an object thereof is to provide a remote monitoring system for an elevator capable of reliably detecting and identifying a damaged elevator when an earthquake occurs. There is.

  In order to achieve the above-described object, the present invention provides an elevator in the event of an earthquake in which monitoring units having monitoring terminals equipped with a P-wave detector and an S-wave detector are arranged at a plurality of locations for each installation location of the elevator. In order to detect whether or not an abnormality has occurred, information is transmitted from each of these monitoring terminals to the monitoring center via a communication line, and each of the monitoring units sends the information to the monitoring center. It has detection information reporting means for reporting the status of the monitoring terminal, and when the P wave detector detects a P wave of a predetermined level or more, the detection information reporting means sends the detection information from the monitoring terminal to the monitoring terminal. When the P-wave detection notification is sent to the center and the detection information by the P-wave detector is notified, and when the S-wave detector detects the S-wave, the detection information of the S-wave detector is monitored. The S wave detector is notified from the end to the monitoring center, and after the P wave is detected by the P wave detector, the S wave detector transmits the S wave from the monitoring terminal even if a predetermined time elapses. When the detection is not reported, the monitoring center is notified that the S wave is not detected.

  When an earthquake occurs, a P wave is first transmitted from the epicenter, and an S wave is transmitted with a delay. A monitoring unit is provided in the elevator, and a P wave detector and an S wave detector that constitute the monitoring unit are provided to detect seismic waves. Here, the monitoring unit can be installed in each elevator, but in a building or the like in which a plurality of elevators are installed, it can also be installed in the control room.

  When a P-wave seismic wave is detected from the P-wave detector in the elevator itself, the S-wave detector is always detected by the S-wave detector within a certain time, regardless of the seismic intensity level thereafter. Depending on the magnitude of the earthquake, if the S wave is above a predetermined level, the elevator is temporarily stopped and the restoration is performed after the earthquake has converged. The P wave detector and the S wave detector are provided when the occurrence of an earthquake is detected quickly by the P wave detector and it is in operation when the P wave is detected to be above a predetermined level. This is to automatically move the elevator to the nearest floor and stop it. When the S-wave detector confirms that there is an earthquake wave below the specified level and there is no safety problem, the elevator should be restarted. Start and return to normal operation. In addition, after the earthquake has converged, recovery is performed according to a predetermined procedure, and after confirming that there is no problem in restarting, the normal operation state is restored.

  The monitoring center is connected to a plurality of monitoring terminals via a communication line such as a telephone, and each elevator is managed by remote control. For this reason, when the occurrence of an earthquake is detected by the monitoring terminal, the detection information is transmitted from the detection information reporting means to the monitoring center through the communication line, and a predetermined procedure is followed for each elevator from the monitoring center side. Processing will be performed.

  By the way, when an earthquake occurs, the P wave detector first detects this, and then the S wave detector detects it. When an earthquake occurs, it is detected by a P wave detector. On the other hand, when the S wave detector does not detect, it is determined that the S wave itself has not been generated, or even if the S wave has been generated, it is determined to be below a predetermined level. However, depending on the scale of the earthquake, the S-wave detector may fail to report from the monitoring terminal to the monitoring center, and as a result, detection information may not be transmitted from the S-wave detector. Normally, after the P wave detector detects the P wave, the detection by the S wave detector should always be performed within a certain time. Therefore, when the S wave is detected by the S wave detector after the P wave detector detects the seismic wave, it can be confirmed that the detection means by the earthquake is properly detected, and the S wave detector. When the detection by is not performed, the S-wave detector has failed, or some other trouble, that is, a failure has occurred on the elevator side.

  From the above, when a P wave exceeding a predetermined level is detected, and when it is detected that an S wave has been detected, the monitoring terminal changes from the monitoring terminal to the monitoring center regardless of the level of the seismic intensity of the S wave. S wave seismic wave detection report is made. When the detection level by the S wave detector is equal to or lower than a predetermined level, a quick recovery is possible by performing the recovery procedure. On the other hand, after the P wave is detected by the P wave detector, if the monitoring terminal does not notify the monitoring center that the S wave seismic wave has been detected from the elevator even after a predetermined time has passed, the S wave is not yet transmitted. Send a detection report to the monitoring center.

    And by selecting the elevator which issued the S wave non-detection report on the monitoring center side, it is possible to identify the elevator that was damaged by the earthquake in each elevator. As a result, it is possible to quickly deal with an elevator that has some sort of malfunction in operation from the monitoring center side.

  When monitoring multiple elevators at the monitoring center, it is possible to reliably identify the elevator that was damaged at the time of the earthquake and dispatch the necessary workers promptly to restore the elevator. Efficient recovery work is possible.

It is a block block diagram which shows one Embodiment of this invention. It is a flowchart figure which shows the operation | movement procedure of the remote monitoring system of the elevator in one Embodiment in this invention. In one Embodiment of this invention, it is a flowchart figure which shows the procedure which identifies the elevator which the damage generate | occur | produced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First. FIG. 1 shows the overall configuration of a monitoring system for a plurality of elevators. This monitoring system is configured to centrally manage a plurality of elevators. In the figure, reference numerals 1a, 1b,..., 1n denote monitoring terminals, 10 denotes a monitoring center that centrally monitors these elevators, and 20 denotes a public network.

  The monitoring terminals 1a to 1n include P wave detection units 2a to 2n and S wave detection units 3a to 3n and communication processing units 4a to 4n as seismic wave detection means. The P wave is the first seismic wave that reaches first when an earthquake occurs, and is an initial tremor. On the other hand, the S wave is the main movement that arrives after the vibration of the P wave is transmitted, and generates a greater swing than the P wave. The P wave vibrates parallel to the traveling direction, and the S wave vibrates in a direction orthogonal to the traveling direction. The P wave detectors 2a to 2n detect P waves in the seismic waves, and the S wave detectors 3a to 3n detect S waves in the seismic waves. The P wave detectors 2a to 2n and the S wave detectors 3a to 3n detect the occurrence of P waves and S waves, respectively, and also detect the magnitude of their vibrations.

  Detection signals from the P wave detection units 2 a to 2 n and the S wave detection units 3 a to 3 n are sent to the monitoring center 10 through the public network 20. The monitoring center 10 includes a communication device 11 and a processing device 12, and a database 13 and an operation console 14 are further connected. The processing device 12 includes a P wave detection notification detection unit 12a and an S wave detection notification detection unit 12b, and further includes an S wave non-detection notification detection unit 12c and an inspection site detection unit 12d.

  In the P-wave detection notification detection unit 12a, the detection signals of the P-wave detection units 2a to 2n, that is, whether or not the P-wave is generated and the data on the magnitude of the P-wave are fetched among the detection means included in each elevator. In the S wave detection notification detection unit 12b, the detection signals of the S wave detection units 3a to 3n are captured, and in the S wave non-detection notification detection unit 12c, even if a predetermined time has elapsed after the P wave is generated, The S wave non-detection signal that is notified when the S wave is not detected by the S wave detection unit 3a is captured.

  In performing the series of operations from the emergency stop to the recovery described above, the operator performs appropriate operations using the console 14. In the database 13, various data regarding events, processing procedures, and the like from the time of the earthquake to the completion of recovery are registered.

  Next, the operation procedure of the elevator remote monitoring system under the situation where an earthquake has occurred will be described with reference to FIG. Here, in FIG. 2, S is an operation procedure on the monitoring terminals 1a to 1n side in the elevator, and T is an operation procedure on the monitoring center 10 side.

  When an earthquake occurs in a place where any one or a plurality of elevators are installed, first of all, the P wave reaches the position of the elevator. Each elevator includes monitoring terminals 1a to 1n. Therefore, any one or more of the monitoring terminals 1a to 1n arranged in the monitoring network of the monitoring center 10 senses an earthquake. Therefore, in the following description, it is assumed that among the monitoring terminals 1a to 1n, the monitoring terminal 1a senses an earthquake.

  When an earthquake occurs, a P-wave detector 2a constituting the monitoring terminal 1a detects a P-wave earthquake wave (step S1). This detection signal is transmitted as a P-wave detection signal from the communication processing unit 4n to the communication device 11 of the monitoring system 10 via the public network 20 (step S2).

  After the P wave is transmitted, the S wave is transmitted. Therefore, it is detected by the S wave detector 3a of the monitoring terminal 1a (step S3). Here, the S wave is detected when a predetermined time elapses after detection of the P wave by the P wave detector 2a. After the P wave is detected, it is determined whether or not the S wave has been detected before the predetermined time has elapsed (step S4). When the S wave is not detected within a predetermined time, an S wave non-detection notification is made (step S5), and when the S wave is detected, an S wave detection notification (step S6) is made.

  On the monitoring center 10 side, when the signal from the monitoring terminal 1a is received by the communication device 11, the processing operation by the processing device 12 is started (step T1). First, it is determined whether or not the signal transmitted from the monitoring terminal 1a is a notification that the occurrence of a P wave has been detected (step T2). If it is determined that the detection signal is a P-wave detection signal, the P-wave detection notification detection unit 12a starts a P-wave detection notification reception process (step T3).

  After the P-wave detection signal is sent from the P-wave detection unit 2a of the monitoring terminal 1a to the monitoring center 10, it waits to determine whether the S-wave detection signal from the S-wave detection unit 3a is transmitted. When it is determined at the monitoring center 10 that there is an S wave detection signal (step T4), an S wave detection notification reception process is performed (step T5). Here, the S wave notification reception process is a well-known process performed when an earthquake occurs, and is an emergency stop process and a recovery process performed thereafter in accordance with a preset procedure according to the magnitude of the S wave.

  Even if a predetermined time elapses after the P wave is generated, the S wave detection unit 3a may not detect the S wave. In this case, an S wave non-detection notification is made. If the monitoring center 10 determines that there is an S wave non-detection signal (step T6), an S wave non-detection notification reception process is performed (step T7), and the monitoring center 10 recognizes that no S wave has been detected. . Here, the fact that the S wave is not detected despite the occurrence of the P wave is a case where some inconvenience, for example, a failure occurs in the S wave detection unit 3a. Therefore, this elevator needs to be inspected. For this purpose, the processing device 12 is requested to display the site to be inspected by the inspection site detector 12d (step T8).

  The aforementioned P wave detection notification, S wave detection information, and S wave non-detection information are recorded in the database 13 (step T9). Further, in step T8, it is determined which elevator is in need of inspection according to the inspection site display request, so that the inspection site detection unit 12d identifies the inspection site (step T10). Based on this request, as will be described later, an inspection site detection unit detection process for displaying a site that needs to be inspected detected by the inspection site detection unit 12d is performed. As a result, for example, it is displayed on the monitor attached to the console 14 which site needs the inspection.

  By the way, since a plurality of elevators are monitored in the monitoring center 10, at the monitoring center 10 side, the communication processing unit 4a of the monitoring terminal 1a notifies the communication device 11 that a P wave has occurred. However, the P wave and the S wave are not detected in the monitoring terminal 1b or the like in another area where the earthquake does not occur. Therefore, no S wave non-detection notification is made. In this way, when an emergency stop or confinement failure occurs during normal travel, a monitoring terminal that does not receive notification of S wave detection, S wave detection, and S wave non-detection performs notification reception processing other than earthquake related. (Step T11).

  Next, for each of the monitoring terminals 1a to 1n in a plurality of elevators, whether or not any of the elevators has been damaged by an earthquake and the procedure for identifying the elevator in which the damage has occurred is based on FIG. I will explain.

  In step T8 of FIG. 2, the inspection should be performed based on either the inspection site display request (step U1) or the operator console inspection display operation by the operator console 14 (step U2). The inspection site detection processing procedure for displaying the site is started.

  Here, if it is detected in step T8 that a P wave has been generated but no S wave is detected after a predetermined period of time, an abnormal situation has occurred and the monitoring terminal has been damaged. There is a high possibility. Therefore, in this case, a process for automatically specifying the inspection site is executed. In addition, for example, when information on the occurrence of an earthquake is acquired based on news reports or reports, whether the elevator actually monitored by the monitoring center 10 has been affected by the earthquake, and whether the damage caused by this earthquake is It may be necessary to confirm whether or not there has been. At that time, the operator operates the console 14 of the monitoring center 10.

  When the above inspection site detection processing procedure is started, a process of reading information recorded in the database 13 is performed (step U3). Here, since there are a plurality of elevators to be monitored, it is determined whether there is an unprocessed P wave detection report. If there is an unprocessed P wave detection report (step U4), It is determined whether or not there is an S wave detection report in the monitoring terminal (step U5). In step T4 on the processing device 12 side, when there is an S wave detection report, since an S wave detection report reception process is executed, whether there is an S wave non-detection report when there is no S wave detection report. A determination is made (step U6).

  When there is an S wave non-detection report, an S wave non-detection report display process is performed (step U7). On the other hand, when a predetermined time has elapsed after receiving the P-wave notification, S-wave related information non-reception display processing is performed assuming that the S-wave detection information has not been received (step U9). Thus, the inspection site detection procedure for the monitoring terminal of one elevator is completed.

  However, since the monitoring center 10 monitors a plurality of monitoring terminals, when reading of data for one monitoring terminal is completed, the data is written to the flag (step U10), and the process returns to step U4 to return to another Start processing at the monitoring terminal. And when the process in all the monitoring terminals is completed, the inspection site detection process procedure is completed.

  Here, the S-wave related information non-reception display processing means that although the P wave is received, the S wave is not detected and the S wave is not detected within a predetermined time thereafter. . In short, this means that the monitoring terminal is in a state where transmission is impossible, and it is estimated that a failure has occurred. Accordingly, by sequentially executing the inspection site detection processing procedure for a plurality of elevators to be monitored, whether or not there is damage in each of the monitoring terminals 1a to 1n in the plurality of elevators due to the occurrence of an earthquake, and which monitoring terminal is damaged It becomes possible to quickly and accurately specify whether or not it has been done.

  That is, by using the detection of the P wave as a trigger, the monitoring terminals 1a to 1n sequentially notify the monitoring center 10 whether the S wave has been detected within a predetermined time or the S wave has not been detected. By selectively extracting the monitoring terminals that have not been notified, this can be used as a selection means, whereby the elevator with damage can be identified. And this can be confirmed with the console 14, and based on the fact, a worker can be dispatched quickly and reliably from the sales office near the place where the damaged elevator is installed.

  As described above, it is determined whether or not the S wave non-detection notification is received while a predetermined time elapses after the detection of the P wave. During this predetermined time, the propagation of the P wave and the S wave is determined. It is set based on the speed difference and how far the earthquake is detected from the epicenter.

1a to 1n Monitoring terminals 2a to 2n P wave detection units 3a to 3n S wave detection units 4a to 4n Communication processing unit 10 Monitoring center 11 Communication device 12 Processing device 12a P wave detection report detection unit 12b S wave detection report detection unit 12c S Wave non-detection report detection unit 12d Inspection detection unit 13 Database 14 Console 20 Public line network

Claims (2)

Monitoring units having monitoring terminals equipped with P-wave detectors and S-wave detectors are arranged at a plurality of locations for each installation location of the elevator, and in order to detect the presence or absence of abnormalities in the elevator when an earthquake occurs, A remote monitoring system for an elevator that transmits information from a monitoring terminal to a monitoring center via a communication line,
Each of the monitoring units has detection information reporting means for reporting the status of the monitoring terminal to the monitoring center,
When the P wave detector detects a P wave of a predetermined level or higher, the detection information reporting means sends a P wave detection report from the monitoring terminal to the monitoring center.
When the S wave detector detects the S wave after reporting the detection information by the P wave detector, the S terminal detects the S wave detection information from the monitoring terminal to the monitoring center. None,
If the monitoring terminal does not report that the S wave detector has detected an S wave even after a predetermined time has elapsed after the P wave is detected by the P wave detector, an S wave is sent to the monitoring center. A remote monitoring system for elevators, which is configured to perform a non-detection notification.   The monitoring center includes selection means for selecting an elevator having a monitoring terminal that is not notified of the S wave detection notification or the S wave non-detection notification after the P wave seismic wave detection notification is received from the P wave detector. The remote monitoring system for an elevator according to claim 1, wherein the remote monitoring system is provided.

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