JP2008265925A - Earthquake monitor control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress congestion of a communication line from respective elevators to a monitoring center and increase of information processing amount at the monitoring center in generation of an earthquake. <P>SOLUTION: The elevator usual operation (c) is executed at the usual time, and when a P wave detector 13 detects P wave, the elevator usual operation (c) is discontinued and control operation (d) in generation of an earthquake is executed. When an S wave detector 16 detects S wave following detection of P wave, discontinuation of the elevator usual operation is maintained, and when the S wave is not detected within a constant time T<SB>A</SB>from detection of the P wave, the elevator usual operation is automatically restarted. Further, information (f) of detection of the P wave is noticed to a monitoring center 25 in restarting T<SB>A</SB>of the elevator usual operation, and information of detection of the S wave is noticed to a monitoring center 24 at the time t<SB>1</SB>when the S wave is detected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seismic monitoring and control apparatus for an elevator that is provided with safety measures for passengers when an earthquake occurs.

  In recent years, elevators built in large-scale buildings and buildings have been constructed in pits and machinery of elevator hoistways to prevent passengers from being trapped in elevator cars and equipment damage in the event of an earthquake. An earthquake detector is installed in the room. In addition, in the control panel installed with the hoisting machine in the elevator machine room, in addition to the elevator normal operation unit that moves the car to the floor designated by the call input from the call registration device at the normal time of the elevator, When an earthquake occurs, stop the elevator normal operation, move the car located between the floors to the nearest floor at the time of the earthquake, open the door on this nearest floor and generate an earthquake At times, a control operation unit is installed that performs a control operation for forcibly evacuating passengers who have boarded the car to the elevator hall on the nearest floor.

  When an earthquake occurs, as is well known, a P wave (Primary Wave) called initial tremor consisting of longitudinal waves arrives first, followed by an S wave (Secondary Wave) called main shock consisting of transverse waves. arrive. In an elevator, a P wave with less shaking before the arrival of a large S wave is detected by a dedicated P wave detector, and the above-described control operation is performed to ensure passenger safety. Therefore, the detection sensitivity of this P wave detector is set to a high sensitivity of, for example, 80 gal.

  In addition to the P-wave detector used to ensure the safety of passengers, an S-wave detector is incorporated for detecting the true intensity of an earthquake that has occurred and predicting damage to the equipment. Therefore, the detection sensitivity of this S wave detector is set to a low sensitivity of 150 gal, for example. When the S-wave detector with a detection sensitivity set to a low sensitivity of 150 gal detects an S-wave, the vibration level is more than 150 gal. Stop it. In this case, after a maintenance worker of the elevator maintenance management company visits the installation location of the elevator and inspects the elevator, the maintenance worker restarts the operation of the elevator manually.

  On the other hand, if the P wave detector set to a high sensitivity of 80 gal detects a P wave and the S wave detector set to a low sensitivity of 150 gal does not detect an S wave, the earthquake shakes Is small, and it is considered that there is no hindrance to the operation of the elevator. Therefore, after the occurrence of the earthquake, the normal operation of the elevator is automatically resumed after a certain time.

  The operation status of an elevator with such an earthquake monitoring control function is automatically transmitted to a monitoring center installed at a position distant from the installation position of the elevator via a communication line such as a public telephone network. Sent. The operator of the monitoring center to which a large number of elevator operation statuses are input sends maintenance personnel to each elevator for inspection work based on the earthquake status received from each elevator.

  In this case, the monitoring center inputs the operation status from a large number of elevators that exist in a certain area such as one city or region, so when an earthquake occurs, the status of the earthquake occurrence is monitored from all the elevators in this region all at once. Since it is transmitted to the center, there is a concern that the communication line connecting each elevator and the monitoring center is congested, resulting in congestion.

Therefore, in the “elevator remote monitoring device” of Patent Document 1, the elapsed time from the earthquake detection time to the transmission time for transmitting the earthquake detection information to the monitoring (maintenance) center is shifted for each elevator. As a result, it is possible to prevent congestion from occurring due to congestion of communication lines connecting each elevator and the monitoring center.
Japanese Patent Laid-Open No. 3-106776

  However, the technical method described in Patent Document 1 described above still has the following problems to be improved.

  That is, as described above, in the system in which the P wave detector and the S wave detector respectively detect the P wave and the S wave and control each part of the elevator, As described above, when an earthquake occurs, each elevator notifies the monitoring center that the P wave detector has detected a P wave, that the car has arrived at the nearest floor during control operation, and that the S wave detector has S Detecting the wave, as a result of stopping the elevator, the car not arriving at the nearest floor even after a predetermined grace period, S wave is not detected even if the P wave is detected and a certain time has passed The elevator operation was resumed.

  As described above, the information transmitted by one elevator to the monitoring center and the transmission timing are important. Therefore, simply shifting the transmission timing of each information for each elevator, not for the information type, may cause important information to be lost or delayed for the monitoring center.

  For example, important information such as “the car does not arrive at the nearest floor after a certain grace period”, which may cause a passenger confinement accident in the car, is immediately monitored at the time the information occurs. Should be notified.

  The present invention has been made in view of such circumstances, and by setting the information to be notified from the elevator to the monitoring center when an earthquake occurs and the notification timing of this information, each elevator can be set even in the event of an earthquake. Elevator earthquakes that can monitor only the essential information in each elevator at the optimal timing after suppressing congestion of communication lines from the monitoring center to the monitoring center and an increase in the amount of information processing at the monitoring center. An object is to provide a monitoring and control apparatus.

In order to solve the above-mentioned problems, in the present invention, when an elevator normal operation of moving a car to a floor designated by a call at normal times is carried out and the P wave detector detects a P wave exceeding the initial fine movement regulation level, Stop operation and carry out control operation at the time of earthquake occurrence. If the S wave detector detects an S wave above the specified level of the main shock following the detection of the P wave, the normal operation of the elevator will be stopped and constant from the P wave detection. In the elevator seismic monitoring and control device that automatically resumes the elevator normal operation when the S wave detector does not detect the S wave within the time,
Information of P wave detection is notified to the monitoring center when the elevator normal operation is resumed, and information of S wave detection is notified to the monitoring center when the S wave is detected.

  In the elevator seismic monitoring and control apparatus having such a configuration, when the P wave, which is the initial tremor of the earthquake, is detected, the monitoring center is not notified and the level of the S wave that follows the P wave is determined to be the main shock regulation. If it is less than the level, the monitoring center is notified that the elevator has resumed normal operation after a certain time. On the other hand, if the S wave level is higher than the main shock regulation level, the S wave detection information is immediately notified to the monitoring center.

  In another aspect of the invention, the control operation includes a nearest floor moving means for moving a car located between the floors when the P wave is detected to the nearest floor and opening the door on the nearest floor. Including. If the car does not reach the nearest floor within a predetermined grace period from the P-wave detection, the monitoring center is notified of information on the arrival of the nearest floor.

  Furthermore, in another invention, the normal operation of the elevator is automatically performed when the S wave detector does not detect the S wave and the car has arrived at the nearest floor within a certain time from the P wave detection. To resume. Thus, after the normal operation of the car is confirmed, the elevator is restored to the normal operation.

  In the present invention, even when an earthquake occurs, the monitoring center can suppress only the communication information from each elevator to the monitoring center and increase the amount of information processing at the monitoring center. Can be monitored at the optimum timing.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an elevator in which an earthquake monitoring control apparatus according to an embodiment of the present invention is incorporated.

  In a machine room 2 above the hoistway 1 provided in the building, a hoisting machine 3 and a control panel in which an information processing device such as a computer (not shown) is incorporated are provided. A car 5 is suspended from one end of the main rope 4 hung on the hoisting machine 3, and a counterweight 6 is suspended from the other end. A car call registration device 7 is provided in the car 5, and a hall call registration device 8 is attached to an elevator hall on each floor of the building. The elevator normal operation unit 9 incorporated in the control panel has a drive unit 11 to which electric power is supplied from the external power source 10 based on calls registered in the car call registration device 7 and each hall call registration device 8. The car 5 is controlled to move to the destination floor specified by the call in the hoistway 1 by rotating the hoisting machine 3 through the hoistway 1.

  Further, a P wave detector 13 is installed in a pit 12 provided below the lowermost floor of the hoistway 1. When this P-wave detector 13 detects a P-wave (Primary Wave) that is equal to or higher than an initial fine movement regulation level of, for example, 80 gal in an earthquake, a control operation unit 14 provided with a P-wave detection signal a in the control panel. To the timer circuit 15.

  An S wave detector 16 is installed in the machine room 2. When this S wave detector 16 detects an S (Secondary Wave) wave that exceeds a predetermined level of a main shock such as 150 gal in an earthquake, for example, an elevator operation stop unit provided in the control panel with an S wave detection signal b. 17 and the elevator operation restarting unit 21.

  A nearest floor moving unit 18 is incorporated in the control operation unit 14. Then, when the P-wave detection signal a is input from the P-wave detector 13, the control operation unit 14 instructs the elevator normal operation unit 9 to stop normal operation, and an earthquake occurs via the drive unit 11. Control operation c at the time is started. Specifically, the nearest floor moving unit 18 is activated to detect the current position of the car 5 that is in operation at the time of the occurrence of the earthquake through the driving unit 11, and from the current position, the shortest time or the shortest time is detected. Find the nearest floor that can be reached by distance. Then, an instruction to forcibly move the car 5 to the nearest floor is sent to the drive unit 11 and the nearest floor arrival detection unit 19 is activated.

  The nearest floor arrival detection unit 19 confirms that the car 5 has arrived at the nearest floor by engaging each of the engaging members 20a and 20b provided in the vicinity of the car 5 and the door of each floor, The nearest floor arrival information d is sent to the control operation unit 14 and also sent to the elevator operation resuming unit 21 and the nearest floor non-arrival determining unit 22.

  The control operation unit 14 that has received the nearest floor arrival information d from the nearest floor arrival detection unit 19 opens the door of the car 5 on the nearest floor and retracts the passenger to the elevator hall on the corresponding floor.

  The timer circuit 15 measures the elapsed time t from the time when the P wave detection signal a is output from the P wave detector 13, and determines the elapsed time t measured by the elevator operation resuming unit 21 and the nearest floor non-arrival determination. Send to unit 22.

  The communication unit 23 transmits the operation state of the elevator to a monitoring center 25 of an elevator maintenance management company via a communication line 24 such as a public telephone network.

  Next, the operations of the elevator normal operation section 9, the control operation section 14, the elevator operation stop section 17, the nearest floor non-arrival determination section 22, and the elevator operation resumption section 21 are as shown in FIG. 2, FIG. 3, FIG. This will be described using a time chart.

As shown in FIG. 2, at the elapsed time t = 0 when the P wave detection signal a of the P wave detector 13 is output, the control operation unit 14 stops the elevator normal operation e of the elevator normal operation unit 9, Start own control operation c. Then, at the elapsed time t _{1 of} 4 to 5 seconds when the P wave detection signal a is output, the elevator operation stopping unit 17 sends the information “S wave detection, earthquake occurrence, elevator operation stop” information f to the communication unit 23. The data is transmitted to the monitoring center 25 via the line 24.

In addition, when the control operation c ends at the elapsed time t ₂ and the nearest floor arrival information d is output from the nearest floor arrival detection unit 19, the movement of the nearest floor of the car 5 has been completed normally. become. As a result, since the nearest floor arrival information d has been output when a certain time T _S such as 5 minutes elapses from the P wave detection time (t = 0), the nearest floor non-arrival determination unit 23 does not transmit anything to the monitoring center 25.

Furthermore, since the S wave detection signal b has already been output when a certain time T _A such as 3 minutes has elapsed from the P wave detection time (t = 0), the elevator operation resuming unit 21 moves to the monitoring center 25. Do not send anything.

Therefore, the detected P-wave, after P-wave detection, S-wave is detected within a predetermined time T _A, after further P-wave detection, the condition where the car for a predetermined time T in _B has arrived to the nearest floor is The information f “S wave detection, earthquake occurrence, elevator operation stop” is transmitted to the monitoring center 25 only once at the S wave detection timing.

In addition, as shown in FIG. 3, the magnitude of the earthquake was so large that the control operation unit 14 started the control operation c in synchronization with the P wave detection (t = 0). When 5 does not arrive at the nearest floor, the nearest floor arrival information d is not output from the nearest floor arrival detection unit 19. As a result, at the time has elapsed for a predetermined time T _B of 5 minutes or the like from the P-wave detection time (t = 0), since the nearest floor arrival information d is in a state of not outputted, nearest floor not arrive determination section 23 , Information f “cage, non-arrival at the nearest floor” is transmitted to the monitoring center 25.

Thus, when the scale of the earthquake is so large that the movement of the car 5 to the nearest floor is hindered, the information f “S wave detection, earthquake occurrence, elevator stop” is transmitted at the S wave detection timing. In addition, at the timing when a certain time T _S has elapsed from the P wave detection time (t = 0), important information on “cage, nearest floor non-arrival” that may cause a passenger confinement accident in the car 5 Since f is transmitted to the monitoring center 25, safety for passengers is sufficiently ensured.

As shown in FIG. 4, when the intensity of the earthquake that has occurred is low, the S-wave detection signal b is not output from the S-wave detector 16 having an extremely low detection sensitivity of 150 gal. However, the P wave detector 13 having a sufficiently high detection sensitivity of 80 gal outputs the P wave detection signal a. Therefore, at the same time as the detection of the P wave (t = 0), the control operation c is started, and at the elapsed time t ₂ , the control operation c is ended, and the nearest floor arrival information d is received from the nearest floor arrival detection unit 19. When it is output, the nearest floor movement of the car 5 is normally completed.

Further, since the S wave detection signal b is not output at the time when a certain time T _A such as 3 minutes has elapsed from the P wave detection time (t = 0), the elevator operation resuming unit 21 is activated, and the nearest After confirming that the floor arrival information d is output, the elevator normal operation section 9 is instructed to resume the elevator normal operation, and the elevator operation state e is shifted to. Further, the elevator operation resuming unit 21 transmits information f “Earthquake, then elevator operation resumed” to the monitoring center 25.

As shown in FIG. 5, an earthquake that is large enough to hinder the movement of the car 5 to the nearest floor occurred. For example, the S wave detector 16 fails and the S wave detection signal b is output. If the earthquake does not occur or the earthquake is so small that the S wave detection signal b is not output from the S wave detector 16, but the movement of the car 5 to the nearest floor is hindered for some reason, Although the driving unit 14 starts the control operation c in synchronization with the P wave detection (t = 0), the nearest floor arrival information d is not output because the car 5 does not arrive at the nearest floor. As a result, at the time has elapsed for a predetermined time T _A of the 2 minutes, such as from P-wave detection time (t = 0), does not elevator operation resumption section 21 instructs the operation resumption of the elevator. At a time after the elapse of a predetermined time T _B of 5 minutes or the like from the P-wave detection time (t = 0), since the nearest floor arrival information d is in a state of not outputted, nearest floor not arrive determination unit 23, Information “c, no arrival at the nearest floor” is transmitted to the monitoring center 25.

  Thus, even if the S wave detection signal b is not output, the elevator is not restarted unless the car 5 has arrived at the nearest floor.

  FIG. 6 is a flowchart showing the overall operation of the elevator earthquake monitoring apparatus constructed as described above.

When the P wave detector 13 detects the P wave (step S1), initialization of the elapsed time t (T = 0) is performed (S2). Furthermore, the control operation c is started (S3). If the S wave detection is detected by the S wave detection (S4) before the elapse time t from the P wave detection of the P wave detector 13 passes the fixed time T _A such as 2 minutes (S5), “Earthquake, elevator” The information “operation stop” is notified (transmitted) to the monitoring center 25 (S6). Then, before (S8) the elapsed time t reaches the 5 minute window time T _B, the nearest floor arrival of the car 5 can be confirmed (S7), actually stops the operation of the elevator (S10).

In addition, even after the lapse of the elapsed time t is 5 minutes of grace time T _B, if the nearest floor arrival of the cage 5 can not be confirmed (S8), information of the "cage, the nearest floor non-arrival" to the monitoring center 25 f is transmitted (S9). Then, the elevator operation is actually stopped (S10).

At S5, even after the lapse of a predetermined time T _A, such as 2 minutes elapsed time t from the detection of the P wave of P-wave detector 13, the S-wave detection does not detect the S-wave, at this point, the car It is checked whether 5 has arrived at the nearest floor (S11). When the car 5 has arrived at the nearest floor, the operation of the elevator is resumed (S12), and the monitoring center 25 is notified of "the occurrence of an earthquake and then the resumption of the elevator operation" (S13). If the car 5 has not arrived at the nearest floor at this time, it waits for the car 5 to arrive at the nearest floor, and proceeds to S12 and S13.

And, even after the elapse of the elapsed time t is 5 minutes of grace time T _B, if the nearest floor arrival of the cage 5 can not be confirmed (S14), "the car to the monitoring center 25, the nearest floor non-arrival, the elevator operation The “stop” information f is transmitted (S15). Then, the operation of the elevator is actually stopped (S16).

In the earthquake seismic control of the elevator configured as described above, at the time when the P wave detector 13 outputs the P wave detection signal a (t = 0), the notification to the monitoring center 25 is not performed and the S wave detection is further performed. when the vessel 16 does not output the S-wave detection signal b, the elevator resumes normal operation after a predetermined time T _a, the elevator operation resumption is notified to the monitoring center 25. On the other hand, when the S wave detection signal b is output from the S wave detector 16, the monitoring center 25 is notified of the S wave detection and the elevator operation stop.

  In this way, when an earthquake occurs, the elevator only performs one notification of important information to the monitoring center 25. Therefore, the monitoring center 25 can grasp the state of the elevator at the time of the earthquake occurrence, and can suppress the line congestion to the monitoring center 25 and the increase in the information processing amount of the monitoring center 25.

  In addition, when the car 5 does not reach the nearest floor when the P wave is detected and the control operation c is executed, the monitoring center 25 is notified of information on the arrival of the nearest floor. In this way, important information related to the safety of passengers in the car is reliably transmitted to the monitoring center 25 each time.

It is a schematic block diagram of the elevator in which the earthquake monitoring control apparatus concerning one Embodiment of this invention was integrated. Time chart showing an earthquake monitoring control operation performed by the elevator earthquake monitoring control device of the embodiment Similarly, a time chart showing an earthquake monitoring control operation performed by the earthquake monitoring control apparatus of the same embodiment Similarly, a time chart showing an earthquake monitoring control operation performed by the earthquake monitoring control apparatus of the same embodiment Similarly, a time chart showing an earthquake monitoring control operation performed by the earthquake monitoring control apparatus of the same embodiment Similarly, a flowchart showing an earthquake monitoring control operation performed by the earthquake monitoring control apparatus of the same embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Machine room, 3 ... Hoisting machine, 4 ... Main rope, 5 ... Car, 7 ... Car call registration apparatus, 8 ... Platform call registration apparatus, 9 ... Elevator normal operation part, 11 ... Drive part , 12 ... Pit, 13 ... P wave detector, 14 ... Control operation part, 15 ... Timer circuit, 16 ... S wave detector, 17 ... Elevator operation stop part, 18 ... Nearest floor moving part, 19 ... Nearest floor Arrival detection unit, 21 ... Elevator operation resumption unit, 22 ... Nearest floor non-arrival determination unit, 23 ... Communication unit, 24 ... Communication line, 25 ... Monitoring center

Claims (3)

During normal operation, the elevator moves to the floor designated by the call, and when the P wave detector detects a P wave exceeding the initial fine movement regulation level, the normal operation of the elevator is stopped and control operation is performed when an earthquake occurs. When the S-wave detector detects an S-wave above the main shock regulation level following the P-wave detection, the normal operation of the elevator is stopped, and the S-wave detector is detected within a certain time from the P-wave detection. In the elevator earthquake monitoring and control device that automatically resumes the elevator normal operation when the S wave is not detected,
The P-wave detection information is notified to the monitoring center when the elevator normal operation is resumed, and the S-wave detection information is notified to the monitoring center when the S-wave is detected. Supervisory control device. The control operation includes a nearest floor moving means for moving a car located between the floors at the time of P wave detection to the nearest floor and opening the door on the nearest floor,
The elevator according to claim 1, wherein if the car does not arrive at the nearest floor within a predetermined grace period from the detection of the P wave, information on the arrival at the nearest floor is notified to the monitoring center. Earthquake monitoring and control equipment.   If the S-wave detector has not detected an S-wave above the main shock regulation level within a certain time from the P-wave detection, and the car has arrived at the nearest floor, the normal elevator operation is performed. 3. The elevator earthquake monitoring and control apparatus according to claim 2, wherein the apparatus is automatically restarted.

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