JP2015168523A - Earthquake operation instruction device and elevator equipped with earthquake operation instruction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately grasp a malfunction, a failure, etc. of an earthquake detector, reliably performs necessary controlled operation, and suppress unnecessary controlled operation.SOLUTION: An earthquake operation instruction device includes: a detection determination part 9 for inputting an operation signal from earthquake detectors 7A-7C installed at each of a plurality of elevator hoistways 1A-1C, and determining the presence/absence of operations of each of the earthquake detectors 7A-7C, and an earthquake time operation determination part 10 for shifting operations of all elevators to controlled operations when a predetermined number of the earthquake detectors 7A-7C or more operate as a result of the determination by the detection determination part 9, and emitting a detection error signal for the elevators being operated in the elevator hoistway where non-operated earthquake detectors 7A-7C are set.

Description

  Embodiments described herein relate generally to an earthquake operation command device and an elevator having an earthquake operation command device.

  One elevator may be installed in one hoistway, or a plurality of elevators may be installed in a building. An earthquake detector is installed in the pit that forms the bottom of the hoistway. There are three types of seismic detectors, one for P waves, one for S waves, and one for PS waves. There are many cases.

  Conventionally, when an earthquake is detected by a P-wave earthquake detector, the elevator that is running in the hoistway is controlled and the elevator of the hoistway that is not operating is not controlled. Control was performed.

JP 2008-007237 A Japanese Patent No. 4750570

  However, for example, in the adjacent hoistway, only the seismic detector of a specific hoistway may operate and the seismic detectors of other hoistways may not operate. In this case, although there is a high possibility that the seismic detector of a specific hoistway has malfunctioned or failed, there is a problem that the elevator of this hoistway shifts to control operation. There was also a problem that even if there was an earthquake detector that could not be detected due to a failure, it could not be found.

  An object of the present invention is to provide a seismic operation command device capable of accurately grasping a malfunction or failure of a seismic detector, reliably executing necessary control operations, and suppressing unnecessary control operations. The object is to provide an elevator having an earthquake operation command device.

  In order to achieve the above object, an embodiment of the present invention provides a sensing determination unit that inputs an operation signal from an earthquake detector installed in each of a plurality of elevator hoistways and determines whether or not each earthquake detector operates. When the seismic detectors operate more than a predetermined number as a result of the determination by the detection determination unit, all elevator operations are shifted to control operation, and non-operational seismic detectors are set. And a seismic operation determination unit that issues a detection error signal for the elevator operating in the elevator hoistway.

The block diagram which shows the elevator system which is one Embodiment of the earthquake operation instruction | command apparatus which concerns on this invention. The flowchart which shows the process of 1st Embodiment of this invention. The flowchart which shows the process of 2nd Embodiment of this invention. The block diagram which shows the elevator system which is 3rd Embodiment of the earthquake operation instruction | command apparatus which concerns on this invention. The flowchart which shows the process of 3rd Embodiment of this invention. The flowchart which shows the process of 4th Embodiment of this invention. The flowchart which shows the process of 5th Embodiment of this invention.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an elevator system to which an earthquake operation command device according to the present invention is applied.

  The elevator system shown in the figure is assumed to include three adjacent hoistways 1A, 1B, and 1C. In each hoistway 1A, 1B, 1C, a car 2A, 2B, 2C and a counterweight 3A, 3B, 3C are installed so as to move up and down like a crane through hoisting machines 4A, 4B, 4C. Yes. In addition, operation control units 5A, 5B, and 5C that perform drive control of the hoisting machines 4A, 4B, and 4C are provided. Hoistway 1A, 1B. Earthquake detectors 7A, 7B, and 7C are provided in the pits 6A, 6B, and 6C of 1C. These earthquake detectors 7A, 7B, and 7C generate an earthquake detection signal when receiving a P-wave signal when an earthquake occurs, and each is connected to an earthquake operation command device 8.

  The seismic operation command device 8 receives a seismic detection signal generated by the seismic detectors 7A, 7B, and 7C and performs a sensing judgment, and a driving control command according to the sensing judgment result by the sensing judgment unit 9. Is generated and output to each of the operation control units 5A, 5B, and 5C, and when it is erroneously detected, a detection error signal is generated and the operation determination unit 10 at the time of earthquake is issued to the outside.

<First Embodiment>
The processing procedure of 1st Embodiment is demonstrated based on the flowchart of FIG. As shown in FIG. 2, when an earthquake occurs and the seismic detectors 7A to 7C are differentially operated, the sensing determination unit 9 of the seismic operation command device 8 is based on the seismic sensing signals input from the seismic detectors 7A to 7C. It is determined whether or not a predetermined number or more of earthquake detectors have been operated (step ST1).

  For example, it is assumed that the determination criterion set in advance is “Transfer to control operation when two or more units operate”. In such a setting, out of the three earthquake detectors 7A to 7C, the two earthquake detectors 7A and 7B are operated, but even when the earthquake detector 7C is not operated, the operation determination unit 10 during an earthquake Outputs a control operation command to each operation control unit 5A, 5B, 5C so that all elevators (cars 2A, 2B, 2C) are controlled (step ST2). In addition, a detection error signal for an elevator (car 2C) in which an inactive seismic detector 7C is installed is reported directly to the disaster prevention center, the monitoring center, or the corresponding elevator (car 2C) ( Step ST3). Thereby, even if the earthquake detector 7C is not operated, the control operation can be surely executed. In the disaster prevention center, the monitoring center, or the like that has received the detection error signal, since the failure of the earthquake detector 7C is suspected, operations such as remote maintenance for the earthquake detector 7C are performed.

Second Embodiment
Since the basic configuration of the second embodiment is the same as that of FIG. 1, the processing procedure will be described below based on the flowchart of FIG.

  As shown in FIG. 3, when an earthquake occurs and the seismic detectors 7A to 7C are differentially operated, the sensing determination unit 9 of the seismic operation command device 8 is based on the seismic sensing signals input from the seismic detectors 7A to 7C. It is determined whether less than a predetermined number of seismic detectors have been operated (step ST11). For example, it is assumed that the criterion set in advance is set to “do not shift to control operation when less than two units operate”. In such a setting, out of the three earthquake detectors 7A to 7C, one of the earthquake detectors 7A is operated, but the earthquake detectors 7B and 7C are not operated. In order to continue normal operation of all the elevators (cars 2A, 2B, 2C), the control operation command is not output (step ST12). In addition, a detection error signal for the elevator (car 2A) where the activated seismic detector 7A is installed is issued directly to the disaster prevention center, the monitoring center, or the corresponding elevator (car 2A) (step) ST13). As a result, even if the earthquake detector 7A operates, there is a possibility of erroneous detection, so that unnecessary control operation can be prevented. In the disaster prevention center, the monitoring center, or the like that has received the detection error signal, since the failure of the earthquake detector 7A is suspected, operations such as remote maintenance for the earthquake detector 7A are performed.

<Third Embodiment>
FIG. 4 shows the configuration of an elevator system which is a third embodiment of the earthquake operation command device according to the present invention. In addition, the same number is attached | subjected to the same component as FIG. 1, and the description is abbreviate | omitted.

  The earthquake operation command device 8 in the third embodiment is different from the first embodiment in that it receives an emergency earthquake bulletin as earthquake information and uses the emergency earthquake bulletin for operation determination during an earthquake. That is, when there is an inactive earthquake detector, the operation determination unit 10 at the time of the earthquake operation command device 8 sets the inactive earthquake detector within a certain time after the emergency earthquake warning is issued. It has a function of issuing a detection error signal for an elevator in the elevator hoistway.

  Next, the operation of the third embodiment will be described based on the flowchart of FIG. As shown in FIG. 5, the earthquake operation determination unit 10 determines whether or not an emergency earthquake warning has been received (step ST21). When the earthquake early warning is received, after receiving the earthquake early warning, it is determined based on the detection determination result from the detection determination unit 9 whether or not the earthquake detector has been operated within a certain period (step ST22). Here, for example, about 2 to 10 seconds is assumed as the fixed time. If there are non-operating earthquake detectors 7A-7C, the detection error signal for the elevator (car 2A-2C) where the non-operating earthquake detectors 7A-7C are installed will be sent to the disaster prevention center, monitoring center, etc. Alternatively, the notification is issued directly to the corresponding elevator (step ST23). On the other hand, when it is detected that the seismic detector has been operated within a certain time, the control operation of the corresponding elevator is executed. Thus, for example, when the earthquake detector 7C is not operating, the failure of the earthquake detector 7C is suspected. Therefore, in the disaster prevention center or the monitoring center that has received the detection error signal, remote maintenance for the earthquake detector 7C, etc. Perform the work.

<Fourth embodiment>
Since the basic configuration of the fourth embodiment is the same as that of FIG. 1, the processing procedure will be described below based on the flowchart of FIG.

  As shown in FIG. 6, when at least one of the earthquake detectors 7A to 7C is not operating (step ST31), control is performed so that all elevators are not controlled (step ST32). As vibration due to disturbances other than earthquakes, for example, vibration at the time of passing a train in an elevator installed in a station building, vibration at the time of passing a large car in an elevator installed near a road such as a footbridge, etc. . In addition, the hoistway on the first road side of the building facing a road with heavy traffic may be affected by vibration of a large truck traveling on the road. Since it is difficult to distinguish between these vibration signals and seismic signals, in the fourth embodiment, when there is an inactive seismic sensor, the control operation of all elevators is not executed. As a result, unnecessary control operation can be prevented in advance.

<Fifth Embodiment>
Since the basic configuration of the fifth embodiment is the same as that of FIG. 1, the processing procedure will be described below based on the flowchart of FIG.

As shown in FIG. 7, in the fifth embodiment, when a plurality of seismic detections installed in the same facility operate with a difference of a predetermined time or more, for example, a time difference of about 5 to 10 seconds (step ST41). ) Since the second detection signal has a high possibility of erroneous detection due to disturbance, control is performed so that all elevators are not controlled (step ST42).
In this case, as the vibration due to disturbances other than earthquakes, as in the fourth embodiment, the vibration at the time of passing an electric train in an elevator installed in a station building, the passage of a large automobile in an elevator installed near a road such as a pedestrian bridge The vibration of this can be considered.

  As described above, according to the fifth embodiment, when a plurality of seismic detectors installed in the same facility operate with a difference of a predetermined time or more, control is performed so that all elevators are not controlled. .

  As described above, according to the embodiment of the present invention, it is possible to accurately grasp a malfunction or failure of a seismic detector, and prevent erroneous detection of seismic detection. As a result, the necessary control operation can be performed reliably, and unnecessary control operation based on false detection can be prevented, thereby enabling accurate operation control of the elevator system.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1A, 1B, 1C ... hoistway 2A, 2B, 2C ... car (elevator)
3A, 3B, 3C ... Balance weights 4A, 4B, 4C ... Hoisting machines 5A, 5B, 5C ... Operation control unit 6A, 6B, 6C ... Pit 7A, 7B, 7C ... Earthquake detector 8 ... Earthquake operation command device 9 ... Sensing judgment part

Claims (6)

A sensing determination unit that inputs an operation signal from an earthquake detector installed in each of the plurality of elevator hoistways and determines whether each earthquake detector is operating;
As a result of the determination by the detection determination unit, when the number of the seismic detectors that have been operated is a predetermined number or more, the operation of all elevators is shifted to the control operation, and an inactive seismic sensor is set. A seismic operation determination unit that issues a detection error signal for an elevator operating in the elevator hoistway,
An earthquake operation commanding device comprising: A sensing determination unit that inputs an operation signal from an earthquake detector installed in each of the plurality of elevator hoistways and determines whether each earthquake detector is operating;
As a result of the determination by the detection determination unit, when the seismic detectors operate less than a predetermined number, the current operation is continued and the elevator hoistway in which the operated seismic detectors are set A seismic operation determination unit that issues a detection error signal for an elevator operating inside,
An earthquake operation commanding device comprising: A sensing determination unit that inputs an operation signal from an earthquake detector installed in each of the plurality of elevator hoistways and determines whether each earthquake detector is operating;
When earthquake information is received and the result of determination by the detection determination unit is that there is an inactive earthquake sensor, an inactive earthquake sensor is set within a certain period of time after the earthquake information is issued. A seismic operation determination unit that issues a detection error signal for an elevator in an elevator hoistway,
An earthquake operation commanding device comprising: A sensing determination unit that inputs an operation signal from an earthquake detector installed in each of the plurality of elevator hoistways and determines whether each earthquake detector is operating;
If at least one of the seismic detectors does not operate as a result of the determination by the detection determination unit, the operated seismic detector determines that the influence of vibration due to disturbances other than earthquakes and controls all elevators. An earthquake operation determination unit that continues current operation without shifting to operation,
An earthquake operation commanding device comprising: A sensing determination unit that inputs an operation signal from an earthquake detector installed in each of the plurality of elevator hoistways and determines whether each earthquake detector is operating;
As a result of determination by the detection determination unit, when a plurality of seismic detectors operate at a predetermined time difference or more, it is determined that there is an influence of vibration due to disturbance other than an earthquake and all elevators are not shifted to control operation. A seismic operation determination unit to continue the operation of
An earthquake operation commanding device comprising:   An elevator comprising the earthquake operation command device according to any one of claims 1 to 5.

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