JP2007246183A - Operation controller of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation controller of an elevator, specifying an elevator assumed to cause a substantial damage due to an earthquake among a number of elevators encountering an earthquake in a monitoring center. <P>SOLUTION: The operation controller of an elevator includes: a monitoring terminal 3 for monitoring the operating condition of the elevator to give an information to the monitoring center; a P-wave detector 4a for detecting P wave; an S-wave detector 4a for detecting an S-wave; and an earthquake supervisory operation performing part 35 for performing an earthquake supervisory operation when P-wave above a regulated level is detected. Further, an earthquake detection signal is transmitted to the monitoring center only when an S-wave above a fixed level is not detected by an S-wave detector 4b after the lapse of a predetermined time since the P-wave detector 31 has detected a P-wave above the regulated level. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator operation control device capable of improving the safety of an elevator user when an earthquake occurs and efficient elevator patrol.

  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, seismometers (P-wave detectors, When the S wave detector is installed and the seismometer detects a vibration of a predetermined level or higher, the elevator is stopped. In this case, when the elevator car is running at the time of the earthquake, if the elevator is stopped immediately, the user is locked in the car when the elevator car is located between the floor and the floor. There is a fear.

  In order to prevent such a situation from occurring, when a vibration exceeding a predetermined level is detected, the running car is not immediately stopped, but the nearest floor that is closest to the current position. Move to the floor and stop. In this state, open the door of the car and the landing hall (elevator hall) on the corresponding floor, prompt the user in the car to leave the car with an automatic voice or display, and then close the door and stop the elevator To migrate. Accordingly, the car is stopped on the corresponding floor. Such operation of an elevator when an earthquake occurs is generally referred to as “seismic control operation”.

  In addition, an elevator used by a large number of people incorporates a monitoring terminal for monitoring the operating state of the elevator, and the monitoring result is notified to a monitoring center of an elevator maintenance management company via a communication line. Specifically, when the elevator does not operate normally due to a failure or a power failure, and the abnormal state is detected, the abnormal state is detected, and the abnormality occurrence signal is automatically notified to the monitoring center via the communication line. .

  When the abnormality occurrence signal from the monitoring terminal is displayed on the display unit, the monitoring center operator (operator) checks the abnormal state of the corresponding elevator via the monitoring terminal, and if maintenance is required, maintenance is required. Send the staff to the elevator on site. The maintenance staff repairs and inspects the elevator and returns the elevator to its original operating state.

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

  As described above, when an earthquake of a certain magnitude or larger occurs, each elevator installed in each building existing in the earthquake occurrence area detects the earthquake all at once and performs the above-described “control operation during earthquake”. In this case, if the monitoring center receives the same earthquake occurrence detection signal from all elevators under its control via the communication line at the same timing, the number of communication lines that the monitoring center can simultaneously connect is limited. The center becomes difficult to receive the earthquake detection signal from each elevator.

  In addition, it was difficult to identify even elevators that were substantially damaged due to the earthquake. In other words, since there are a large number of elevators that carry out control operations during earthquakes, it takes a lot of time to inspect and patrol all elevators in the earthquake occurrence area with a certain number of maintenance personnel.

  In addition, an elevator that performs the earthquake control operation is often not damaged due to the earthquake and can return to normal operation immediately after the earthquake control operation is completed. The monitoring center has priority over the majority of general elevators that can be assumed to have successfully completed the “control operation during earthquakes” for elevators that may have suffered substantial damage. It is necessary to send maintenance personnel to.

  The present invention has been made in view of such circumstances, and at the monitoring center, when an earthquake occurs, it is possible to identify an elevator that may be substantially damaged due to the earthquake. It is an object of the present invention to provide an elevator operation control device capable of preferentially taking necessary measures for an elevator.

  In order to solve the above problems, in the elevator operation control apparatus 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 a P-wave that reaches the elevator when an earthquake occurs P-wave detector to detect, S-wave detector to detect S-waves that reach the elevator when an earthquake occurs, and seismic control operation to perform seismic control operation when P-wave detector detects a P-wave above the specified level Monitoring terminal for the seismic detection signal only when the S wave detector does not detect the S wave above a certain level even after a predetermined time has elapsed since the execution means and the P wave detector detected the P wave above the specified level. Forcibly issuing means for notifying the monitoring center via

  It is considered that substantial damage caused by an earthquake in an elevator often occurs in an S wave (main shock) after a P wave (initial tremor). Therefore, after the P wave is detected by the P wave detector, if the S wave of a certain level or more cannot be correctly detected by the S wave detector, there is a possibility that substantial damage has occurred in the elevator. There is. For example, this is the case when a malfunction occurs in the S wave detector.

  Therefore, in the elevator operation control apparatus of the present invention, the earthquake detection signal is transmitted to the monitoring center only when the S wave is not normally detected after the P wave is detected.

  In another invention, the S wave detector is installed in the pit of the elevator hoistway, and the P wave detector is installed in the machine room above the hoistway.

  Moreover, in another invention, when the S wave detector detects an S wave of a certain level or more, an elevator forcibly stopping means for shifting the elevator to a stop state is provided.

  From among a number of elevators that have encountered an earthquake, you can identify elevators that may have suffered substantial damage due to this earthquake, and take the necessary preferential 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, this 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 the seismic wave a including a P wave (Primary Wave) and an S wave (Secondary Wave). The seismometer 4 includes a P wave detector 4a that detects a P wave that is a longitudinal wave and an S wave wave detector 4b that detects an S wave that is a transverse wave.

  FIG. 3 is a diagram showing an overall configuration of an elevator in which the elevator operation control device of the present embodiment is incorporated. 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, an earthquake, or the like, the user in the car 19 presses the emergency button, thereby monitoring the monitoring center 3 and the communication line 8 via the monitoring terminal 3. It is possible to talk with six operators 9. The operator 9 of the monitoring center 6 can directly give an instruction by voice to the user in the car 19 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.

  The hoisting machine 18 incorporates a three-phase AC motor, and this three-phase AC motor is rotationally controlled by a drive circuit 30 using electric power supplied from an external commercial AC power supply 29.

  The normal operation control unit 36 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 30. The drive circuit 30 drives the hoist 18 to move the car 19 to the destination floor.

  On the other hand, the P wave detector 4a described above is installed in the pit in the elevator hoistway 17 in the building, and the S wave wave detector 4b is installed in the machine room on the hoistway 17. The P wave signal detected by the P wave detector 4 a and converted into an electric signal is sent to the P wave determination unit 31. Similarly, the S wave signal detected by the S wave detector 4 b and converted into an electric signal is sent to the S wave determination unit 32.

The P wave determination unit 31 will be described. The relative relationship between the vibration level of the S wave and the vibration level of the P wave in the seismic vibration a shown in FIG. 2 has a substantially constant relationship for the north-south, east-west, and upper and lower vibration components. Therefore, the P wave determination unit 31 determines that the level L of the P wave (initial fine movement) signal is a constant level L _S (acceleration level) in which the level of the S wave input following this P wave corresponds to, for example, seismic intensity 4 or the like. 150 gal), for example, when the acceleration level exceeds a specified level L _P such as 100 gal, an H (high) level P wave detection signal b is sent to the seismic control operation execution unit 35 and the timer circuit 33.

  Upon receiving the H (high) level S wave detection signal e, the earthquake control operation execution unit 35 detects the nearest floor from the current position of the car 19 of the elevator 2 and lands the car 19 on the nearest floor. In this state, the door 22 of the car 19 and the door 26 of the corresponding floor are opened, and the “control operation during earthquake” is executed to evacuate the user in the car 19 to the outside of the car 19.

When the level L of the S wave (main shock) signal exceeds a certain level L _S (acceleration level of 200 gal) corresponding to a seismic intensity of 5 or the like, the S wave determination unit 32 generates an S wave detection signal e of H (high) level. This is sent to the seismic control operation execution unit 35 and the timer circuit 33.

  When the S-wave detection signal e is input during the earthquake control operation period, the seismic control operation execution unit 35 stops the operation of the elevator 2 and shifts the elevator 2 to the stop state. If the S-wave detection signal e is input when the control operation at the time of earthquake in the elevator 2 is finished and the elevator 2 is in the stopped state, nothing is done.

As shown in FIGS. 6 and 7, the timer circuit 33 counts the elapsed time T _P from the time t ₁ when the P wave detection signal b is input, and the elapsed time T _P is the next S wave detection signal e. When the predetermined time Tmax is reached before inputting, the time-up signal d is sent to the earthquake detection signal transmitter 37. When receiving the time-up signal d, the earthquake detection signal transmission unit 37 transmits the earthquake detection signal g to the monitoring device 7 of the monitoring center 6 via the monitoring terminal 3 and the communication line 8.

As shown in FIGS. 6 and 7, the predetermined time Tmax must be set longer than the initial fine movement time (t ₃ −t ₁ ) from the P wave detection time t ₁ to the S wave detection time t ₃ in the earthquake vibration a. There is. However, since the initial tremor time (t ₃ -t ₁ ) varies greatly depending on the distance to the epicenter of this elevator 2, for example, assuming that an earthquake with a large seismic intensity is a direct earthquake, the predetermined time Tmax is For example, it is set to a relatively short value such as 6 to 8 seconds.

  When the operator 9 of the monitoring center 6 confirms that an earthquake of a certain scale or larger has occurred in the area under his / her control center 6 by various reports and information from the Japan Meteorological Agency, Identify a group of elevators that can be considered to have started control operation. Furthermore, each elevator of the transmission source of the earthquake detection signal g is identified as an elevator that can be assumed that substantial damage has occurred due to this earthquake from the group of elevators. The majority of elevators that can be considered to have started maintenance operation for earthquakes after having the maintenance staff 12 give priority to inspection, repair, and recovery for elevators that can be assumed to have suffered substantial damage. Instruct the maintenance staff 12 to inspect the above.

In the elevator operation control apparatus configured as described above, the P wave detection processing operation when the P wave determination unit 31 detects a P wave equal to or higher than the specified level L _P will be described with reference to the flowchart of FIG. 4. It is described with reference to the flowchart of FIG. 5 the S-wave detection processing operation when the S-wave determination unit 32 detects the S-wave above a certain level L _S as well.

In the flowchart of FIG. 4, when the P wave determination unit 31 detects a P wave equal to or higher than the specified level L _P and the P wave detection signal b is output, the timer circuit 33 starts measuring the elapsed time T _P ( Step S1). Then, after S2, the earthquake control operation execution unit 35 executes the earthquake control operation. First, if there is an unexecuted call registration in the call registration unit 28 (S2), the call registration is canceled (S3). Next, it is checked whether or not the car 19 is currently moving. If it is moving (S4), the nearest floor on the current traveling direction side is detected from the current car position (S5). Then, the instruction to move to the nearest floor is sent to the drive circuit 30, and the car 19 is moved to the nearest floor and landed (S6).

  When the car 19 arrives at the nearest floor (S7), the inside of the car 19 makes an earthquake and announces and displays an evacuation instruction outside the car 19, and a user in the car 19 moves from the car 19 to the nearest floor. After the doors 22 and 26 are opened for a certain period of time necessary to escape to the elevator hall (S8), the doors 22 and 26 are closed (S9).

When a user who has been evacuated outside the car 19 presses the door opening button of the car call control panel 23 (S10), the doors 22 and 26 are opened again for a predetermined time (S8), and then the doors 22 and 26 are opened. Close (S9). Then, the operation stop process of the elevator 2 is performed (S11). Then, after clearing an elapsed time T _P of the timer circuit 33 (S12), the recovery for the elevator 2 by maintenance personnel 12, the restart wait.

  If the car 19 is not moving at S4, the doors 22 and 26 are opened for a predetermined time at S8 (S8), and then the doors 22 and 26 are closed (S9).

In FIG. 5, when the S wave determination unit 32 detects an S wave of a certain level L _S or more, if the elapsed time T _P of the timer circuit 33 has not reached the predetermined time Tmax (step Q1), the elevator 2 is currently stopped. It is checked whether or not the vehicle is in a state (Q2), and if it is not stopped, the elevator 2 is forcibly stopped (Q3). Then, the elapsed time of the timer circuit 33 to clear the T _P (Q4). In addition, if you are already in a stopped state elevator 2 is completed and the seismic control operation (Q3), to clear the elapsed time T _P of the timer circuit 33 (Q4).

Further, the elapsed time T _P of the timer circuit 33 if reached a predetermined time Tmax (Q1), the monitoring center 6 transmits the earthquake detection signal g (Q5), and clears the elapsed time T _P of the timer circuit 33 ( Q6).

  FIG. 6 is a time chart showing the operation of the elevator operation control apparatus according to the embodiment in a state where the H level S wave detection signal e is normally output from the S wave detector 4b.

At time t ₁ , when the P wave determination unit 31 detects a P wave of the specified level L _P or higher and the H level P wave detection signal b is output, the timer circuit 33 counts the elapsed time T _P. To start. At the same time, the earthquake control operation execution unit 35 starts the earthquake control operation f. At time t ₂ when the time T _{1 has} elapsed from the start of the control operation f at the time of earthquake, the control operation f at the time of the earthquake ends, and then at time t ₃ when the elapsed time T _P has not reached the predetermined time Tmax, the S wave When the determination unit 32 detects an S wave equal to or higher than a certain level L _S and outputs an H level S wave detection signal e, the elapsed time T _P of the timer circuit 33 is cleared and the elapsed time T _P is stopped. To do. Further, the elevator 2 enters the operation stop state h.

When the output time t _{3 of} the H level S-wave detection signal e is within the predetermined time Tmax and after the end time t ₂ of the seismic control operation f, the seismic control operation f ends and the elevator Since 2 is already in the operation stop state h, it is not necessary to set the elevator 2 to the operation stop state h again.

As described above, the operator 9 of the monitoring center 6 confirms that an earthquake of a certain scale or more has occurred in the area controlled by the monitoring center 6 by using various reports and information from the Japan Meteorological Agency, even if the earthquake detection signal The maintenance staff 12 is also dispatched to the elevator that does not confirm the above. The maintenance staff 12 performs an inspection i of the elevator 2 that is stopped at time t _4. If there is no abnormality, the P wave detection signal b of the P wave determination unit 31 and the S wave determination unit 32 is detected at time t ₅ . And the S wave detection signal e is reset and the elevator 2 is restarted.

  FIG. 7 shows an example of the operation control apparatus for an elevator according to the embodiment when the S wave detector 4b is out of order and the S wave detection signal e at the H level is not normally output from the S wave detector 4b. It is a time chart which shows operation | movement.

At time t ₁ , when the P wave determination unit 31 detects a P wave of the specified level L _P or higher and the H level P wave detection signal b is output, the timer circuit 33 counts the elapsed time T _P. To start. At the same time, the earthquake control operation execution unit 35 starts the earthquake control operation f. At time t ₂ when time T _{1 has} elapsed from the start of the earthquake control operation f, the earthquake control operation f ends, and then at time t ₆ , the elevator 2 enters the operation stop state h.

At time t _1, the timer circuit 33 starts counting c of the elapsed time T _P, at time t ₃ when the elapsed time T _P has not reached the predetermined time Tmax, above a certain level L _S in seismic vibrations a Even if the S wave is generated, the S wave detection signal e at the H level is not output from the S wave determination unit 32 due to a failure or a failure caused by the earthquake.

At time t ₇ when the elapsed time T _P reaches the predetermined time Tmax, the time-up signal d is sent from the timer circuit 33 to the earthquake detection signal transmitter 37, and the elapsed time T _P of the timer circuit 33 is cleared. timing c of the elapsed time T _P is stopped. At time t ₇ , the earthquake detection signal g is notified to the monitoring center 6.

  When the operator 9 of the monitoring center 6 confirms the earthquake detection signal g designating 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. A preferential inspection instruction for the elevator 2 is sent to the elevator 2 that is the transmission source of the earthquake detection signal g on the mobile phone 13 owned by the maintenance staff 12 of the company.

Maintenance personnel 12 is went to the elevator 2 designated by the operator 9 of the monitoring center 6 performs inspection i and repair of elevators 2 in operation stops at the time t _8, at time t _9, P-wave determination The P wave detection signal b and the S wave detection signal e of the unit 31 and the S wave determination unit 32 are reset and the elevator 2 is restarted.

  Note that the time chart of FIG. 7 shows the case where the control operation f during an earthquake is normally completed. However, after the control operation f during an earthquake starts, a mechanical failure due to earthquake vibration occurs and the earthquake Even when the time control operation f does not end normally, when the S wave detection signal e is not output from the S wave determination unit 32 within the predetermined time Tmax, the earthquake detection signal g is transmitted to the monitoring center 6.

In the elevator operation monitoring apparatus configured as described above, a predetermined time Tmax has elapsed since the P wave detector 4a detected a P wave of a specified level L _P or more due to a substantial failure caused by an earthquake. also only when the S-wave exceeding a predetermined level L _S by S-wave detector 4b is not detected, earthquake detection signal g is transmitted to the monitoring center 6.

  Therefore, at the time of the earthquake occurrence, it is possible to identify an elevator that may be substantially damaged due to this earthquake from among a large number of elevators that have encountered the earthquake, and it is necessary to prioritize this elevator. Measures can be taken. Furthermore, the processing burden on the monitoring center when an earthquake occurs can be reduced.

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. The flowchart which shows the P wave detection processing operation in the operation control apparatus of the elevator of the embodiment The time chart which shows the S wave detection processing operation in the operation control apparatus of the elevator of the 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, 4 ... Seismometer, 4a ... P wave detector, 4b ... S wave detector, 6 ... Monitoring center, 7 ... Monitoring apparatus, 8 ... Communication line, 12 ... Maintenance 17 ... hoistway, 19 ... car, 22, 26 ... door, 23 ... car call registration board, 27 ... landing call registration board, 28 ... call registration part, 30 ... drive circuit, 31 ... P wave determination part, 32 ... S wave determination unit, 33 ... timer circuit, 35 ... control operation execution unit during earthquake, 36 ... normal operation control unit, 37 ... earthquake detection signal transmission unit

Claims (3)

A monitoring terminal for monitoring the operating state of the elevator and notifying the monitoring center via a communication line;
A P-wave detector that detects P-waves that reach the elevator when an earthquake occurs;
An S wave detector that detects S waves that reach the elevator when an earthquake occurs;
A seismic control operation executing means for performing a seismic control operation when the P wave detector detects a P wave exceeding a specified level;
The seismic detection signal is sent to the monitoring terminal only when the S wave detector does not detect an S wave above a certain level even after a predetermined time has elapsed after the P wave detector detects a P wave above a specified level. An elevator operation control device, comprising: forced notification means for notifying the monitoring center via the control means.   The elevator operation control apparatus according to claim 1, wherein the S wave detector is installed in a pit of an elevator hoistway, and the P wave detector is installed in a machine room above the hoistway. .   3. The elevator operation control device according to claim 1, further comprising: an elevator forcible stop unit that shifts the elevator to a stop state when the S wave detector detects an S wave of a certain level or higher.

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