JP2009113937A - Emergency operation device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency operation device of an elevator capable of reducing the occurrence of damage due to long period earthquake motions. <P>SOLUTION: This emergency operation device is provided with a reception means 3 for receiving an emergency earthquake flash report delivered from the outside and including seismic center information and seismic center seismic intensity information and a long period earthquake motion sensor 13 for sensing the long period earthquake motions and outputting a signal. When a control means 4a determines that the seismic center of the earthquake related to the received emergency earthquake flash report is included in an object region fixed in advance and the seismic intensity of the earthquake is a prescribed value or more, a car 9 is stopped at the nearest floor and is made a standby state by opening a door, switches an operation to a long period earthquake motion emergency operation fixed in advance when determining that there is an output of the signal from the long period earthquake motion sensor 13 during prescribed time from the occurrence of the earthquake, and returns to a normal operation when determining that there is no output of the signal from the long period earthquake motion sensor 13 during the prescribed time fixed in advance from the occurrence of the earthquake. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator operation control apparatus that detects an earthquake and performs earthquake control operation.

  Generally, a building equipped with an elevator is obliged to install a seismic detector, and when an earthquake is detected by the seismic detector, the elevator is switched to seismic control operation.

  The seismic detectors that are required to be installed vary depending on the function of the elevator, but in general elevators that do not have express zones, special low S wave detectors that detect the main motion (S waves) of low acceleration, and low acceleration There are two types: a low S-wave detector that detects S waves. The extra-low S-wave detector here does not sense all earthquakes with low acceleration, but senses earthquakes with acceleration that requires seismic control operation. On the other hand, the low S-wave detector detects an earthquake whose acceleration is greater than a set value among earthquakes having an acceleration that requires seismic control operation, that is, a so-called large earthquake. In place of the specific S-wave sensor, a P-wave sensor that detects the initial tremor (P-wave) of an earthquake may be used.

  By installing the above-described two types of earthquake detectors in the building where the elevators are provided, the elevators are subjected to a seismic control operation that is predetermined according to the detection results of the respective earthquake detectors. For example, when the extra low S wave detector detects an earthquake but the low S wave detector does not detect an earthquake, the first level seismic control operation is performed. Specifically, the elevator car that is moving up and down is stopped at the nearest floor, and the car door of the stopped car and the door of the elevator hall on the floor where the car stops are opened. Thereafter, the elevator automatically returns to normal operation after a certain period of time.

  On the other hand, when the low S wave sensor detects an earthquake in addition to the extra low S wave sensor detecting an earthquake, the second level seismic control operation is performed. Specifically, the elevator car that is moving up and down is stopped at the nearest floor, and the car door of the stopped car and the door of the elevator hall on the floor where the car stops are opened. Thereafter, the elevator is maintained in an operation stop state even after a certain time has elapsed, and after returning to normal operation after undergoing safety confirmation and return adjustment work by maintenance personnel.

  However, research on earthquakes has revealed that the above-described acceleration detection type earthquake detector may not be able to detect long-period earthquakes with small accelerations, that is, earthquake motions that slowly oscillate with a period of several seconds to tens of seconds. Therefore, if the building where the elevator is installed or the elevator hoistway is shaken slowly due to long-period ground motion, the earthquake will not be detected even if the deflection of the building or hoistway increases, and the elevator will be switched to seismic control operation. It will be in normal operation without any problems.

  When an elevator is operated in a state where the hoistway of the building or elevator slowly shakes and repeats a large deflection, the elevator rope (including main rope, compen- sion rope, governor rope) resonates with the flexure of the building and hoistway. The resonated rope may hit the wall of the car, the counterweight, or the elevator hoistway, and the elevator equipment may be damaged. If the elevator equipment is damaged during the operation of the elevator in this way, the car is urgently stopped by a signal from the detector that detects the damage, and the elevator user may be trapped in the car. In particular, there is a concern that long-period vibrations tend to coincide with the natural frequency of high-rise buildings and cause great damage.

For this reason, conventionally, what detects a long-period ground motion and switches the elevator to a predetermined long-period earthquake control operation according to the detection of the long-period ground motion has been put into practical use (for example, see Patent Documents 1 and 2). .
JP 60-197576 A Japanese Patent Application No. 2006-166812

  However, in the prior art described above, when a long-period ground motion is detected by a detector installed in a building, the elevator installed in the building is switched to a long-period seismic control operation. Therefore, the building has already been shaken at the time of switching the elevator to the long-period seismic control operation, and further improvement has been desired from the viewpoint of reducing damage.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator control operation device that can reduce the occurrence of damage due to long-period ground motion.

  In order to achieve the above object, the present invention comprises an earthquake detector that senses the amplitude of a building due to an earthquake, and an elevator control operation that performs a seismic control operation predetermined by a control means based on a signal from the earthquake detector. In the apparatus, the control means comprises a receiving means for receiving an emergency earthquake warning sent from the outside and including an epicenter information and a seismic intensity information, and a long-period ground motion detector for detecting a long-period ground motion and outputting a signal. If it is determined that the epicenter of the earthquake related to the received earthquake early warning is included in the predetermined target area and that the seismic intensity of the earthquake is greater than or equal to a predetermined value, stop the car at the nearest floor and open the door. A long-period seismic tube that is predetermined when it is opened and placed in a standby state, and it is determined that there is a signal output from the long-period seismic detector during a predetermined time from the occurrence of the earthquake. Switched to operation, whereas, during a predetermined time which is determined in advance from the earthquake, is characterized in that return to normal operation of the elevator when it is determined that no output of the signal from the long period ground motion sensor.

  In the present invention configured as described above, when the earthquake early warning is received from the receiving means, the control means is included in the target area in which the epicenter of the earthquake related to the received emergency earthquake early warning is predetermined, and the seismic intensity of the earthquake When it is determined that is equal to or greater than a predetermined value, the car is stopped at the nearest floor and the door is opened to enter a standby state. After that, the control means switches to the predetermined long-period seismic motion control operation when it determines that there is a signal output from the long-period seismic motion detector during a predetermined time from the occurrence of the earthquake, If it is determined that there is no signal output from the long-period ground motion detector during a predetermined time, the elevator is returned to normal operation. In this way, the detection of long-period ground motion by the long-period ground motion detector is supplemented with information based on the emergency earthquake warning including the epicenter information and the seismic intensity information, and quick and appropriate seismic control operation is performed. The occurrence of damage caused by long-period ground motion can be reduced.

  According to the present invention, it is possible to quickly stop a car at the nearest floor and prepare for shaking as a standby state based on an earthquake early warning including epicenter information and seismic intensity information, and to detect long-period ground motion By determining whether or not there is long-period ground motion using a device and reflecting it in the control of the elevator, the occurrence of damage due to long-period ground motion is reduced, safety is improved, and the operation time is reduced with a minimum elevator stop time. Can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an elevator control operation device according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram illustrating an embodiment of an elevator control operation device according to the present invention, and FIG. 2 is a flowchart illustrating an operation procedure of the control operation device.

  In FIG. 1, an elevator hoistway 1, a machine room 2 formed at the upper end of the hoistway 1, and an emergency earthquake bulletin receiver 3 for receiving an emergency earthquake bulletin sent from the outside are provided in a building A. It has been. Further, in the machine room 2, a control panel 4 provided with a CPU 4a that performs arithmetic processing for controlling the elevator, and a hoist for driving a passenger car and a counterweight described later according to a drive command output from the CPU 4a. Machine 5 is installed. Further, a driving sheave 6 is connected to the rotating shaft of the hoisting machine 5, and the driving sheave 6 and the deflecting sheave 7 disposed in the vicinity of the driving sheave 6 are one of the elevator ropes whose both ends are directed downward. One main rope 8 is wound around. Further, both ends of the main rope 8 are suspended in the hoistway 1, a car 9 is suspended and supported at one end of the main rope 8, and a counterweight 10 is suspended and supported at the other end of the main rope 8. Has been. The elevator rope includes a compen- sion rope and a governor rope (not shown) in addition to the main rope 8 shown.

  Also installed in the pit portion 1a at the lower part of the hoistway 1, installed in the machine room 2 and the extra low S wave detector 11 for detecting an extraordinarily low acceleration S wave of the earthquake and outputting an extra low S wave detection signal, Low S wave sensor 12 that detects low acceleration S waves and outputs low S wave detection signals, and long period ground motion detection that is installed in machine room 2 to detect long period ground motions and output long period ground motion signals The special low S wave sensor 11, the low S wave sensor 12, the long-period ground motion sensor 13, and the receiving means 3 described above are connected to the control panel 4.

  It is assumed that the above-mentioned emergency earthquake bulletin includes the epicenter information and the seismic intensity information. In other words, when a large-scale earthquake occurs using the difference in propagation speed of earthquakes, information on seismic waves captured by seismometers at observation points close to the epicenter is collected at the Japan Meteorological Agency, and Although a system has been constructed to predict the arrival time of the main motion and its seismic intensity by predicting the propagation of the S wave coming later based on the observation of the P wave in a time series, the present invention targets long-period ground motion. Therefore, unlike the control of elevators based on the predicted arrival time and predicted seismic intensity of main motion, the earthquake control is included in the earthquake early warning sent from the outside, and the control of the elevator is based on these information. Is done.

  In this embodiment, when the earthquake early warning receiver 3 provided in the building A where the elevator is installed receives the earthquake early warning in step S1 of FIG. 2, the CPU 4a of the control panel 4 receives the earthquake early warning as step S2. It is determined whether or not the earthquake epicenter associated with the earthquake early warning is included in a predetermined target area, and in step S3, the seismic intensity of the earthquake is compared with a reference value. At this time, if it is determined that the epicenter of the earthquake is included in a predetermined target area and the seismic intensity of the earthquake is equal to or greater than a predetermined reference value, the elevator car 9 is moving up and down as step S4. Stop at the nearest floor, open the door and put the elevator in standby. Further, when the car 9 is stopped on the floor, the state is continued and the registered call is invalidated and the elevator is set in a standby state. Thereafter, the CPU 4a of the control panel 4 starts counting for a predetermined time, for example, 5 minutes, predetermined from the occurrence of the earthquake as step S5. If it is determined that the building A is shaken by the long-period ground motion during these 5 minutes and a long-period ground motion signal is output from the long-period ground motion detector 13 in step S6, the CPU 4a of the control panel 4 pre-operates as step S10. Switch to the long-period seismic motion control operation. On the other hand, when counting for 5 minutes from the occurrence of the earthquake ends as shown in step S7 and there is no long-period ground motion signal output from the long-period ground motion detector 13 during this period, the standby state is canceled as step S8 and the elevator is Return to normal operation.

  In addition, when it is determined that the earthquake related to the emergency earthquake warning received in step S2 described above is not included in the predetermined target area, and the seismic intensity of the earthquake is equal to or less than a predetermined reference value in step S3 described above. If it is determined that, the normal operation is continued as shown in step S9, and a response corresponding to the subsequent situation is taken. That is, even if the earthquake related to the earthquake early warning is not included in the predetermined target area and the seismic intensity of the earthquake is equal to or less than the predetermined reference value, the long-period ground motion detection is performed as shown in step S6. When the device 13 detects long-period ground motion and outputs a long-period ground motion signal, the CPU 4a of the control panel 4 switches to the long-period ground motion control operation that is predetermined as step S10.

  The CPU 4a of the control panel 4 outputs a special low S wave detection signal from the special low S wave sensor 11 and outputs a low S wave detection signal from the low S wave sensor 12 as another seismic control operation. If it is determined that the car has not been lifted, the car 9 that is moving up and down is stopped at the nearest floor, the door is opened, and then the elevator is returned to normal operation after a predetermined time has elapsed. Further, when it is determined that the extra low S wave sensor 11 outputs the extra low S wave sensor signal and the low S wave sensor 12 outputs the low S wave sensor signal, The car 9 is stopped at the nearest floor, the door is opened, and the elevator is suspended until the safety check and the return adjustment work by the maintenance staff.

  According to the present embodiment, it is possible to quickly stop the car 9 at the nearest floor based on the emergency earthquake early warning including the epicenter information and the seismic intensity information, and prepare for shaking as a standby state, and a long cycle The presence or absence of long-period ground motion is judged by the seismic motion detector 13 and reflected in the control of the elevator, thereby reducing the occurrence of damage due to long-period ground motion and improving safety, while minimizing the elevator stop time As a result, a decrease in operating efficiency can be prevented.

FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator control operation apparatus according to the present invention. It is a flowchart which shows the operation | movement procedure of a control operation apparatus.

Explanation of symbols

1 hoistway 2 machine room 3 earthquake early warning receiver (reception means)
4 Control panel 4a CPU
5 Hoisting machine 6 Drive sheave 7 Warp sheave 8 Main rope 9 Car cage 10 Balanced weight 11 Special low S wave detector 12 Low S wave detector 13 Long period earthquake motion detector

Claims (1)

In an elevator control operation device that includes an earthquake detector that detects the amplitude of a building due to an earthquake, and performs earthquake control operation that is predetermined by the control means based on a signal from the earthquake detector,
A receiving means for receiving an earthquake early warning including an epicenter information and a seismic intensity information sent from outside; and a long-period ground motion detector for detecting a long-period ground motion and outputting a signal; If the seismic center of the earthquake related to the earthquake early warning is included in the predetermined target area, and if the seismic intensity of the earthquake is greater than or equal to the predetermined value, stop the car at the nearest floor and open the door When it is determined that there is a signal output from the long-period ground motion detector during a predetermined time after the occurrence of the earthquake, the operation is switched to a predetermined long-period ground motion control operation. An elevator control operation device characterized in that when it is determined that there is no signal output from the long-period ground motion detector for a predetermined time, the elevator is returned to normal operation. .

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