JP2007276924A - Operation control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To presume an elevator receiving human damage among a large number of elevators encountered with an earthquake. <P>SOLUTION: The operation control device for the elevator is provided with a monitoring terminal 3 for monitoring the operation state of the elevator and informing a monitoring center of it; a seismometer 4; and an earthquake time control operation execution part 35 for performing control operation in earthquake for making a car of the elevator land at a nearby story and a door open when an earthquake wave of a certain level or more is detected. Further, a landing detector 30 for detecting that the car is landed to the nearby story in the earthquake time control operation is provided, and when the landing detector 30 does not detect landing of the car within a predetermined time after the seismometer detects the earthquake wave of the certain level or more, an earthquake detection signal is informed to the monitoring center through the monitoring terminal 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator operation control apparatus capable of improving the safety of an elevator user when an earthquake occurs and performing efficient inspection and repair.

  In recent years, high-rise buildings in offices of companies and government offices have progressed, and high-rise buildings in individual residential areas such as apartments have also progressed. People who work or live in such high-rise buildings have more opportunities to use elevators. In addition, there are many opportunities for ordinary people other than those who work or live in high-rise buildings to use elevators in low-rise buildings.

  Since it is dangerous to operate an elevator and move a car in a state where an earthquake has occurred and a building such as a building is shaking, for example, a seismometer (P wave detector, When the S wave detector is installed and the seismometer detects a vibration of a predetermined level or higher, the elevator is stopped.

  However, the following problems to be solved still exist in the earthquake countermeasures at the time of the occurrence of the earthquake.

  That is, when an earthquake of a certain magnitude or larger occurs, all elevators existing in the earthquake occurrence area detect the earthquake all at once and perform the above-described “control operation during earthquake”. In this case, the same earthquake detection signal is issued at the same timing from all the elevators under its control to the monitoring center, but the number of communication lines that can be connected to the monitoring center at the same time is limited. The earthquake detection signal from all cannot be received.

  On the other hand, the operator of the monitoring center needs to dispatch maintenance personnel to inspect and repair each elevator that is the source of the earthquake detection signal. However, since there is a limit to the number of maintenance personnel belonging to the elevator maintenance management company, it is not possible to resume operation of all building elevators in a short time from the occurrence of an earthquake.

  On the other hand, depending on the magnitude of the earthquake that occurred, there are many cases where no abnormality is found in the inspection of the elevator by maintenance personnel after the control operation during the earthquake. Of course, it is necessary to check the elevators after the earthquake, but it is impossible to check many elevators at the same time as described above. Therefore, it is desirable to assign some priorities and perform inspection and restoration of elevators by maintenance personnel after the earthquake.

  The present invention has been made in view of such circumstances, and it is possible to estimate an elevator in which human damage has occurred due to this earthquake from among a number of elevators encountered in the earthquake. It is an object of the present invention to provide an elevator operation control device capable of preferentially taking necessary measures.

  In order to solve the above problems, in the elevator operation control device of the present invention, a monitoring terminal that monitors the operation state of the elevator and notifies the monitoring center via a communication line, and detects an earthquake wave that reaches the elevator when an earthquake occurs A seismometer that performs seismic control operation, and when the seismometer detects a seismic wave of a certain level or higher, temporarily stops the elevator car and then lands on the nearest floor and opens the door. Landing detection means for detecting that the car has landed on the nearest floor during time-controlled operation, and the landing detection means for detecting the seismic wave above a certain level, And an earthquake detection signal transmitting means for transmitting an earthquake detection signal to the monitoring center via the monitoring terminal only when not detecting.

  In the elevator operation control apparatus configured as described above, when the seismometer detects a seismic wave exceeding a certain level, the elevator car is temporarily stopped, and then the elevator control operation is performed to land on the nearest floor and open the door. To be implemented. The fact that the elevator car has landed on the nearest floor can be presumed that there was a high possibility that the user who was in the elevator car could be saved outside the car.

  From among a number of elevators that have encountered an earthquake, it is possible to estimate an elevator that is causing human damage due to this earthquake, and it is possible to preferentially take necessary measures for this elevator.

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

  FIG. 1 is a diagram showing a relationship between an elevator in which an elevator operation control apparatus according to an embodiment of the present invention is incorporated and a monitoring center.

  Each building 1 distributed in a certain area is provided with one or a plurality of elevators 2 as monitoring targets. Each building 1 incorporates a monitoring terminal 3 that constantly monitors the operation state of each elevator 2 in one or a plurality of elevators 2 incorporated in the building 1. Furthermore, seismometers 4 are installed in the hoistway and machine room of the elevator 2 of each building 1.

  A monitoring terminal 3 provided in each building 1 is connected to a monitoring device 7 of a monitoring center 6 of an elevator maintenance management company via a public line network 5 via a communication line 8. When an abnormality including the above is detected, the abnormality signal is notified to the monitoring device 7 of the monitoring center 6.

  The monitoring device 7 of the monitoring center 6 displays the abnormal signal of each elevator 2 received from the monitoring terminal 3 of each elevator 2 on the display 14. When the operator 9 of the monitoring center 6 confirms the abnormality displayed on the display 14, the operator 9 operates the operation unit 15 and is possessed by the maintenance staff 12 of the maintenance management company via the mobile communication line 10 or the Internet 11. An inspection instruction for traveling to the abnormal elevator 2 is sent to the mobile phone 13 and a voice conversation is performed with the maintenance staff 12 using the telephone terminal 16 as necessary.

  FIG. 2 is a waveform diagram of a seismic wave a including a P wave (Primary Wave initial tremor) and an S wave (Secondary Wave main shock). The seismometer 4 includes a P wave detector 4a that detects a P wave that is a longitudinal wave, and an S wave detector 4b that detects an S wave that is a transverse wave.

  Drawing 3 is a figure showing the whole elevator composition in which the operation control device of the elevator of an embodiment was built. A hoisting machine 18 is installed on the upper side of the elevator hoistway 17, and an elevator car 19 that moves up and down in the hoistway 17 on the hoisting machine 18 and a rope 21 having a counterweight 20 fixed to both ends are provided. It is hung.

  The car 19 is provided with a door 22 for a user to enter, a car call registration board 23 for the user to specify a destination floor, and an emergency response board 24 such as an emergency button and an intercom. The emergency response board 24 is connected to the monitoring terminal 3 via the voice call unit 25. For example, when a user is confined in the car 19 of the elevator 2 due to a power failure or an earthquake, the user in the car 19 presses the emergency button to detect the occurrence of an abnormality. It is possible to have a conversation with the operator 9 of the monitoring center 6. Then, the operator 9 of the monitoring center 6 can give a voice instruction directly to the user at the telephone terminal 16.

  Further, the elevator hall on each floor of the building is provided with a door 26 for a user to get into the car 19 and a hall call registration board 27 for registering a hall call for the user to call the car 19 to the floor. It has been.

  Each hall call inputted from each hall call registration board 27 and each car call inputted from the car call registration board 23 of the car 19 are once written in the call registration unit 28.

  Further, on the lower surface of the car 19, a landing having three contact levers capable of contacting a detection plate 29 having a predetermined thickness formed near the floor position of the elevator hall on each floor in the hoistway 17. A detector 30 is attached. As shown in FIG. 5, the landing detector 30 includes three contact levers 30a, 30b, 30c arranged in the vertical direction, and these contact levers 30a when the contact levers 30a, 30b, 30c are inclined. , 30b, 30c, and three contact points 30d, 30e, 30f, and an AND circuit 30g.

  Then, as shown in FIG. 4B, the door 22 of the car 19 accurately faces the door 26 of the elevator hall on each floor, and all the three contact levers 30a, 30b, 30c come into contact with the detection plate 29. Since the + V voltage is applied to the AND circuit 30g via the contact levers 30a, 30b, 30c, 30d, 30e, and 30f, the AND circuit 30g is established and the H (high) level landing is made. A detection signal c is output.

  On the contrary, as shown in FIG. 4A, in the state where the door 22 of the car 19 does not accurately face the door 26 of the elevator hall on each floor, of the three contact levers 30a, 30b, 30c. Since at least one of the contact levers 30a, 30b, 30c is not in contact with the detection plate 29, the AND circuit 30d is not established, and the H (high) level landing detection signal c is not output.

  The hoisting machine 18 incorporates a three-phase AC motor, and this three-phase AC motor is rotationally controlled by a drive circuit 32 using electric power supplied from an external commercial AC power supply 31.

  The normal operation control unit 33 performs the next movement of the car 19 from each car call that designates each floor temporarily stored in the call registration unit 28, each hall call, and the current car position in a normal state that is not an earthquake occurrence state. The floor is calculated and directed to the drive circuit 32. The drive circuit 32 drives the hoist 18 and moves the car 19 to the destination floor. The drive circuit 32 uses the landing detection signal c to accurately land the car 19 on the destination floor.

On the other hand, the S wave signal output from the S wave detector 4b installed in the machine room above the elevator hoistway 17 in the building is sent to the S wave determination unit 34b. When the level L of the S wave (main shock) signal exceeds a certain level L _S (acceleration level 150 gal) corresponding to, for example, seismic intensity 4 or the like, the S wave determination unit 34b generates an S wave detection signal d, The information is sent to the control operation execution unit 35, the timer circuit 36, and the restart unit 37.

The P wave signal output from the P wave detector 4a installed in the pit in the elevator hoistway 17 in the building is sent to the P wave determination unit 34a. When the level L of the P wave signal exceeds the specified level L _P corresponding to the certain level L _S in the S wave signal, the P wave determination unit 34a generates the P wave detection signal b and sends it to the earthquake operation control execution unit 35. Send it out. That is, the specified level L _P is a signal level that is assumed to cause vibration exceeding 150 gal at the acceleration level in the S wave (main shock) following the P wave (initial tremor).

  The seismic control operation execution unit 35 immediately executes the seismic control operation when the P wave detection signal b is input when an earthquake occurs. That is, the nearest floor is detected from the current position of the car 19 of the current elevator 2, and the car 19 is landed on the nearest floor. In addition, it is confirmed by the H (high) level landing detection signal c output from the landing detector 30 that the car 19 has actually landed on the nearest floor. Thereafter, the door 22 of the car 19 and the door 26 on the opposite floor are opened, and the users in the car 19 are evacuated outside the car 19.

Furthermore, the seismic control operation execution unit 35, for example, does not receive the P wave detection signal b because the level of the P wave signal does not reach the specified level L _P described above, and the next S wave signal is at a certain level L _S. When the S-wave detection signal d is input, that is, only the S-wave detection signal d is input when an earthquake occurs, the drive circuit 32 is instructed to stop the elevator car 19 and the car 19 is urgently Stop (pause). Then, self-diagnosis including checking of various safety circuits incorporated in the drive circuit 32 is executed. When the self-diagnosis result is good, restart operation is executed.

  That is, the nearest floor is detected from the current position of the car 19 of the current elevator 2, and the car 19 is restarted to land on the nearest floor. In addition, it is confirmed by the H (high) level landing detection signal c output from the landing detector 30 that the car 19 has actually landed on the nearest floor. Thereafter, the door 22 of the car 19 and the door 26 on the opposite floor are opened, and the users in the car 19 are evacuated outside the car 19. When the earthquake control operation execution unit 35 ends the restart operation, it sends an end signal e to the window time counter 38.

The H (high) level landing detection signal c output from the landing detector 30 attached to the lower surface of the car 19 is input to the timer circuit 36 in addition to the seismic control operation execution unit 35. As shown in FIGS. 8 and 9, the timer circuit 36 measures the elapsed time T _S from the time t ₁ when the S wave detection signal d is input, and the elapsed time T _S is the next landing detection signal c. When the predetermined time Tmax is measured before inputting, the time-up signal g is transmitted to the earthquake detection signal transmission unit 39. The earthquake detection signal transmission unit 39 transmits the earthquake detection signal i to the monitoring device 7 of the monitoring center 6 via the monitoring terminal 3 and the communication line 8.

As shown in FIGS. 8 and 9, the predetermined time Tmax is such that the car 19 is at the nearest floor from time t ₁ when an S wave of a certain level or more in the earthquake vibration a is generated and the S wave detection signal d is output. It is necessary to set a time longer than the time T ₁ (= t ₃ −t ₁ ) from when the user lands at time t ₃ until the landing detection signal c is output. In the normal elevator 2, since the time required for the moving car 19 to land on the nearest floor is 2 to 3 seconds, the predetermined time Tmax is set to 6 to 8 seconds.

Window time counter 38, as shown in FIG. 8, when the end signal e indicating the end of the restart operation from seismic control operation execution unit 35 to input at time t _4, after a predetermined delay time T _Y elapses The S wave detection signal d output from the S wave determination unit 34b is cleared and the restart unit 37 is started.

  When the restart unit 37 clears the S wave detection signal d and confirms that the S wave detection signal d is not output again from the S wave determination unit 34b, the restart unit 37 starts the normal operation control unit 33 to generate an earthquake. Return to the previous normal operation mode.

The earthquake monitoring processing operation in the elevator operation control apparatus configured as described above will be described with reference to the flowcharts of FIGS. In a state where the P wave detection signal b from the P wave determination unit 34a is not output (step S1), the S wave determination unit 34b detects an S wave equal to or higher than a certain level L _S and outputs an S wave detection signal d. (S2), the timer circuit 36 starts measuring the elapsed time T _S (S3). Furthermore, the elevator car 19 is urgently stopped (S4), and a self-diagnosis of the safe driving of the drive circuit 32 with respect to the car 19 is performed (S5).

  When the self-diagnosis result is good (S6), the seismic control operation execution unit 35 starts the restart operation (S7). First, if there is an unexecuted call registration in the call registration unit 28 (S8), the call registration is canceled (S9). Next, it is checked whether or not the car 19 is moving just before stopping. If it is moving (S10), the nearest floor is detected from the current car position (S11). Then, the instruction to move to the nearest floor is sent to the drive circuit 32, and the car 19 is moved toward the nearest floor (S12).

When the landing detection signal c of H (high) level is not output from the landing detector 30 attached to the lower surface of the car 19, the car 19 has not yet landed on the designated nearest floor ( S13) It is determined whether or not the elapsed time T _S counted by the timer circuit 36 has reached a predetermined time Tmax (S14).

If landing on the nearest floor to which the car 19 is designated is detected before the elapsed time T _S reaches the predetermined time Tmax (S13), the elapsed time T _S counted by the timer circuit 36 is cleared. Then, the timing operation is stopped (S15).

  Next, an earthquake is announced and an evacuation instruction outside the car 19 is announced, and the doors 22 and 26 are opened for a certain period of time necessary for the user in the car 19 to escape from the car 19 to the elevator hall on the nearest floor. After that, the doors 22 and 26 are closed (S17). Then, with the car 19 stopped at the nearest floor, the elevator 2 is stopped (S18). Further, the S wave detection signal d output from the S wave determination unit 34b is once cleared, and a new S wave detection signal d is awaiting output.

When the above restart operation is completed, a restart process for the elevator is performed in S19 to S23. An end signal e is sent to the margin time counter 38. First, the number of trials N is set to an initial value (N = 1) (S19). The grace time T _Y set in the spare time counter 38 has elapsed (S20), checks whether a new S-wave detection signal d is output from the S-wave determination unit 34b (S21), the new S-wave If the detection signal d is not output (S22), the normal operation control unit 33 is activated to restart the elevator 2 (S23).

When a new S wave detection signal d is output from the S wave determination unit 34b (S22), the number of trials N is updated (N = N + 1) (S24), and the number of trials N after the update is set in advance. if not reached the number N _S (S25), returns to S20, after waiting for the re-delay time T _Y, checks whether the re-output the new S-wave detection signal d is.

Even if the output check of the S wave detection signal d of the prescribed number N _S is performed, if the output of the S wave detection signal d continues (S25), since the earthquake is still continuing, the monitoring center 6 An earthquake detection signal is transmitted to (S26). And the operation stop process with respect to the elevator 2 is implemented (S27).

Further, in S13 and S14 of FIG. 6, if the landing on the nearest floor to which the car 19 is designated is not detected before the elapsed time T _S reaches the predetermined time Tmax, the winding is caused by the earthquake. It is determined that some trouble has occurred in the mechanical system such as a guide rail for the car 19 provided in the upper machine 18 and the hoistway 17, and a time-up signal g is transmitted to the earthquake detection signal transmission unit 39. Then, the elapsed time T _S timed by the timer circuit 36 is cleared, and the time counting operation is stopped (S28). Thereafter, the earthquake detection signal i is transmitted to the monitoring device 7 of the monitoring center 6 via the monitoring terminal 3 and the communication line 8 (S29). Finally, an operation stop process for the elevator 2 is performed (S30).

  When the P-wave detection signal b is input in S1, the earthquake control operation is executed (S31) without urgently stopping the elevator 2, and the process proceeds to S18.

  FIG. 8 shows a state in which the P wave detection signal b is not output but the S wave detection signal d is output when the earthquake occurs, and the earthquake operation control execution unit 35 has successfully completed the restart operation. It is a time chart which shows the operation | movement in the operation control apparatus of the elevator of embodiment at the time.

At time t ₁ , in a state where the P wave detection signal b of the specified level LP is not output from the P wave determination unit 34a, the S wave determination unit 34b detects an S wave of a certain level L _S or more, When d is output, the timer circuit 36 starts measuring time f of the elapsed time T _S. Further, at time t ₁ , the car 19 of the elevator 2 stops i and the self-diagnosis o is performed. When a normal self-diagnosis result is obtained at time t _{2, the} restart operation h starts in the earthquake control operation execution unit 35.

Elapsed time T _S of the timer circuit 36 does not reach the predetermined time Tmax, and at time t ₃ when the time T ₁ elapses from the time t ₁ that entered S-wave detection signals d, landing detection signal c Earthquake When input to the control operation execution unit 35 and the timer circuit 36, the elapsed time T _S of the timer circuit 36 is cleared, and the time measurement f of the elapsed time T _S stops. Upon receipt of the landing detection signal c, the restart h ends normally at time t ₄ .

When the restart operation h ends at time t ₄ , an end signal e is output and the elevator 2 enters the operation stop state i. At the same time, the S wave detection signal d output from the S wave determination unit 34 is once cleared, and a new S wave detection signal d is awaiting output. In addition, at time t _4, the grace time counter 38 is activated, the timing k of grace time T _Y starts.

At time t _5, when the timing k grace time T _Y ends, restart unit 37 is an operating state m, the new S-wave detection signal d from the S-wave determination unit 34b confirms that no output , at time t _6, the operation control unit 33 is activated, the operation stop state i of the elevator 2 is released, to recover to the state before the earthquake.

  FIG. 9 shows that when an earthquake occurs, the P-wave detection signal b is not output, the S-wave detection signal d is output, and the earthquake control operation execution unit 35 cannot land the car 19 on the nearest floor. It is a time chart which shows the operation | movement in the operation control apparatus of the elevator of embodiment at the time of the state which was not able to complete | finish a restart driving | operation normally due to this.

At time t ₁ , in a state where the P wave detection signal b of the specified level LP is not output from the P wave determination unit 34 a, the S wave determination unit 34 detects an S wave of a certain level L _S or more, and the S wave detection signal When d is output, the timer circuit 36 starts measuring time f of the elapsed time T _S. Further, at time t ₁ , the car 19 of the elevator 2 stops i and the self-diagnosis o is performed. When a normal self-diagnosis result is obtained at time t ₂ , the earthquake control operation execution unit 35 starts the restart operation.

However, even when the time T ₁ elapses from the time t ₁ when the S wave detection signal d is input and the scheduled time t ₃ is reached, the landing detection signal c for the nearest floor of the car 19 is not output and the timer circuit 36 is output. When the elapsed time T _S reaches the predetermined time Tmax at time t ₇ , a time-up signal g is sent from the timer circuit 36 to the earthquake control operation execution unit 35 and the earthquake detection signal transmission unit 39.

As a result, at time t ₇ , restart operation h is forcibly terminated before normal termination. Further, the elapsed time T _S timed by the timer circuit 36 is cleared, and the time measurement f stops. At time t ₇ , the earthquake detection signal j is transmitted to the monitoring device 7 of the monitoring center 6 via the monitoring terminal 3 and the communication line 8. Further, at time t ₇ , the elevator 2 enters the operation stop state i.

  When the operator 9 of the monitoring center 6 confirms the earthquake detection signal indicating the elevator 2 displayed on the display 14, the operator 9 operates the operation unit 15 to perform maintenance management via the mobile communication line 10 or the Internet 11. An inspection instruction for the elevator 2 is sent to the mobile phone 13 owned by the maintenance staff 12 of the company by going to the elevator 2 that is the source of the earthquake detection number.

Maintenance personnel 12, and went to the elevator 2, which is designated by the operator 9 of the monitoring center 6, performs the inspection and repair n of the elevator 2 of the operation stop state at time t _8, inspection and repair n at time t ₉ When is completed, the maintenance staff 12 manually clears the elapsed time T _S of the timer circuit 36 and stops the time measurement f of the elapsed time T _S. In addition, maintenance personnel 12, by restarting the elevator 2 manually, at time t _9, the operation stop state i of the elevator 2 is released, to recover to the state before the earthquake.

  In the elevator operation monitoring apparatus configured as described above, the elevator is temporarily stopped and the self-diagnosis is performed in a state where the S wave detection signal d is output without the P wave detection signal b being output. When the restart operation is carried out and the car 19 normally lands on the nearest floor in this restart operation, it is estimated that the user in the car can be saved outside the car, and the alarm is sent to the monitoring center 5. Without returning to normal operation mode.

  On the other hand, when the restart operation is not normally completed or when the restart operation itself cannot be performed, the landing detector 30 indicates that the car 19 of the elevator 2 has landed on the nearest floor. Cannot be detected. In this case, since it is estimated that there is a high possibility that the user in the car is in a confined state, an earthquake detection signal is transmitted to the monitoring center 6, and the maintenance staff 12 rescues the user and checks the elevator. Recovery is performed.

  In this way, when an earthquake exceeding a certain level occurs in a city where a large number of elevators 2 are installed, only the elevator 2 whose restart operation has not ended normally is maintained among the many elevators that have encountered the earthquake. Elevator inspection and restoration by staff 12 is prioritized.

  In addition, the processing load at the monitoring center in the event of an earthquake can be reduced while ensuring the safety of the elevator user, and as a result, the service for the elevator user and the elevator administrator can be improved.

The schematic diagram which shows the relationship between the elevator in which the operation control apparatus of the elevator concerning one Embodiment of this invention was integrated, and the monitoring center. Diagram showing the relationship between seismic vibration and seismometers The figure which shows the whole elevator structure with which the operation control apparatus of the elevator of the embodiment was integrated. Operation explanatory diagram of the landing detector incorporated in the elevator operation control device of the same embodiment Detailed configuration diagram of the landing detector Flow chart showing an earthquake monitoring processing operation in the elevator operation control apparatus of the embodiment Similarly, a flowchart showing an earthquake monitoring processing operation in the elevator operation control apparatus of the same embodiment Time chart showing earthquake monitoring processing operation in the elevator operation control apparatus of the embodiment Similarly, a time chart showing an earthquake monitoring processing operation in the elevator operation control apparatus of the same embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Elevator, 3 ... Monitoring terminal, 4a ... P wave detector, 4b ... S wave detector, 6 ... Monitoring center, 7 ... Monitoring apparatus, 8 ... Communication line, 12 ... Maintenance staff, 17 ... Lifting Road, 19 ... Cage, 22, 26 ... Door, 23 ... Car call registration board, 27 ... Landing call registration board, 28 ... Call registration part, 30 ... Landing detector, 32 ... Drive circuit, 33 ... Normal operation control part , 34 ... S wave determination part, 35 ... Control operation execution part during earthquake, 36 ... Timer circuit, 37 ... Restart part, 38 ... Grace time counter, 39 ... Earthquake detection signal transmission part

Claims (3)

A monitoring terminal for monitoring the operating state of the elevator and notifying the monitoring center via a communication line;
A seismometer that detects seismic waves reaching the elevator when an earthquake occurs,
When the seismometer detects a seismic wave of a certain level or higher, the elevator car temporarily stops the elevator car, then lands on the nearest floor and opens the door.
Landing detection means for detecting that the car has landed on the nearest floor during the earthquake control operation;
An earthquake detection signal is sent to the monitoring center via the monitoring terminal only when the landing detection means does not detect the landing of the car within a predetermined time after the seismometer detects a seismic wave of a certain level or more. An elevator operation control device comprising: an earthquake detection signal transmitting means for transmitting.   2. The elevator operation control apparatus according to claim 1, wherein the seismic wave detected by the seismometer is an S wave. A monitoring terminal for monitoring the operating state of the elevator and notifying the monitoring center via a communication line;
A seismometer that detects seismic waves reaching the elevator when an earthquake occurs,
When the seismometer detects a seismic wave of a certain level or higher, the elevator car temporarily stops the elevator car, then lands on the nearest floor and opens the door.
Landing detection means for detecting that the car has landed on the nearest floor during the earthquake control operation;
When the landing detecting means detects the landing of the car within a predetermined time after the seismometer detects the seismic wave of the certain level or higher, the earthquake detection signal is transmitted from the monitoring terminal to the monitoring center. An elevator operation control device comprising: an earthquake detection signal transmission stopping means for stopping.

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