Elevator waiting floor setting system

Abstract

To provide an elevator waiting floor setting system in which a waiting floor with the minimum shaking of a car of an elevator at the time of earthquake occurrence can be set.SOLUTION: A waiting floor setting system 10 includes: an elevator 20 including a car 21 that moves up and down inside a shaft 22, an earthquake sensor 25 that is provided in a plurality of positions along a height direction inside the shaft 22 and senses shaking at the time of earthquake occurrence, a control panel 30 that causes the car 21 to wait in a waiting floor 22 in a state where there is no calling for the car 21; and a monitoring device 40 for setting a waiting floor. The monitoring device 40 sets a floor near the earthquake sensor 25 that has sensed minimum shaking at the time of earthquake occurrence as the waiting floor.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an elevator waiting floor setting system that sets a waiting floor for an elevator car. [Background technology]

[0002] Elevators have designated waiting floors (park floors). A waiting floor is a floor where a car waits when not being called. The waiting floor is set from the viewpoint of elevator operating efficiency or safety in the event of a disaster. For example, in Patent Document 1, a waiting floor is set at a floor where long objects (wire ropes, etc.) that are displaced as the car moves during an earthquake are less likely to resonate with the shaking of the building. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-163152 Summary of the Invention [Problem to be solved by the invention]

[0004] During an earthquake, the shaking of the elevator car can damage other elevator equipment. Therefore, it is desirable that the waiting floor be one where the shaking of the elevator car is minimized during an earthquake. However, the floors where the building shakes most during an earthquake vary from building to building, so it is not possible to set a uniform floor.

[0005] Therefore, an object of the present invention is to provide an elevator waiting floor setting system that can set a waiting floor that minimizes the shaking of the elevator car when an earthquake occurs. [Means for solving the problem]

[0006] The elevator waiting floor setting system of the present invention comprises an elevator having a car that moves up and down within a shaft, earthquake sensors that are installed at multiple locations along the height of the shaft and detect shaking when an earthquake occurs, and a control panel that causes the car to wait at a waiting floor when there is no call for the car, and a monitoring device that sets the waiting floor, and is characterized in that the monitoring device sets the floor nearest to the earthquake sensor that detects the least shaking when an earthquake occurs as the waiting floor.

[0007] By adopting the above configuration, it is possible to set a waiting floor where the shaking of the elevator car will be minimized in the event of an earthquake.

[0008] In the elevator waiting floor setting system of the present invention, it is preferable that the monitoring device sets as the waiting floor the floor that takes the shortest time for diagnostic operation of the elevator after the earthquake occurs, among floors in the vicinity of the earthquake sensor that detects the smallest shaking when an earthquake occurs.

[0009] By adopting the above configuration, the operating rate of the elevator can be improved. [Effects of the Invention]

[0010] According to the elevator waiting floor setting system of the present invention, it is possible to set a waiting floor at which the shaking of the elevator car will be minimized in the event of an earthquake. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic diagram illustrating a waiting floor setting system according to an embodiment; [Figure 2] FIG. 2 is a block diagram showing a control configuration of the control panel shown in FIG. [Figure 3] FIG. 2 is a block diagram showing a control configuration of the monitoring device shown in FIG. [Figure 4] FIG. 4 is a diagram showing the configuration of the earthquake history database shown in FIG. 3. [Figure 5]4 is a flowchart showing the operation (waiting floor setting control) of the monitoring device shown in FIGS. 1 and 3. DETAILED DESCRIPTION OF THE INVENTION

[0012] An example of an embodiment of the present invention will be described in detail below. In the following description, specific shapes, materials, directions, numerical values, etc. are examples for facilitating understanding of the present invention, and can be appropriately changed according to the application, purpose, specifications, etc.

[0013] [Waiting floor setting system] A waiting floor setting system 10 as an example of an embodiment will be described with reference to FIG.

[0014] The waiting floor setting system 10 is a system that sets a waiting floor for the car 21 of the elevator 20. As will be described in detail later, the waiting floor setting system 10 can set a waiting floor at which the shaking of the car 21 of the elevator 20 is minimized when an earthquake occurs. Furthermore, the waiting floor setting system 10 can update the waiting floor at which the shaking of the car 21 of the elevator 20 is minimized every time an earthquake occurs.

[0015] Here, the waiting floor is a floor where the car 21 waits when there is no call for the car 21. The waiting floor is set from the viewpoint of the operating efficiency of the elevator 20 or safety in the event of a disaster. The waiting floor may be set for each building 5 in which the elevator 20 is installed, or may be set for each elevator 20 installed in the same building 5.

[0016] The waiting floor setting system 10 includes an elevator 20 having a car 21 that moves up and down in a hoistway 22, earthquake sensors 25 that are provided at multiple locations along the height direction in the hoistway 22 and that detect shaking when an earthquake occurs, and a control panel 30 that causes the car 21 to wait at a waiting floor when there is no call for the car 21, a monitoring device 40 that sets waiting floors, and an external server 50 that distributes earthquake information. In the waiting floor setting system 10, the control panel 30 and the monitoring device 40 are connected by a network 60, and the monitoring device 40 and the external server 50 are connected by the network 60.

[0017] The external server 50 distributes the earthquake information as described above. The external server 50 may be provided at the Japan Meteorological Agency. The earthquake information includes the magnitude of the epicenter and the seismic intensity of the area where the building 5 is located.

[0018] [Elevator] Elevator 20 is installed in building 5. In this embodiment, building 5 is, for example, an office building, and is, for example, 30 stories tall. However, building 5 of the present invention may also be a commercial building, public facility, etc. Building 5 of the present invention is preferably 20 stories or more tall, as the effects of the invention can be more easily obtained if it has a high number of floors.

[0019] The elevator 20 raises and lowers a car 21 in a hoistway 22 between landings on each floor. The car 21 picks up passengers and rises and lowers according to the passengers' requests, stopping at the landings on each floor. The car 21 is hung from one end of a wire rope 23. A counterweight 24, whose weight is set so as to balance with the car 21, is hung from the other end of the wire rope 23. The car 21 and counterweight 24 are raised and lowered by an elevator 26, which uses an electric motor to rotate a pulley on which the wire rope 23 is hung.

[0020] [Earthquake detector] The earthquake sensor 25 detects shaking when an earthquake occurs. The earthquake sensor 25 may be capable of quantitatively detecting shaking when an earthquake occurs, and may be capable of detecting shaking as strong, medium, or weak depending on the strength of the shaking when an earthquake occurs. The earthquake sensor 25 of this embodiment is a mechanical earthquake sensor that automatically activates when it detects shaking at or above a set acceleration, and different set accelerations such as strong, medium, and weak are set for each.

[0021] A plurality of earthquake sensors 25 are provided at different positions in the height direction of the elevator shaft 22. In this embodiment, earthquake sensors 25 are provided at the midpoints of each of the three floors when the elevator shaft 22 is divided in the height direction into lower, middle, and upper floors. This makes it possible to detect shaking during an earthquake on the lower floors (1st to 10th floors), middle floors (10th to 20th floors), and upper floors (20th to 30th floors) of the elevator shaft 22 (building 5). Each earthquake sensor 25 is connected to a control panel 30, which will be described later.

[0022] [Control panel] The control panel 30 will be described with reference to FIG.

[0023] The control panel 30 controls each device of the elevator 20, such as the elevators 26. As described above, the control panel 30 causes the car 21 to wait at a waiting floor when there is no call for the car 21. The control panel 30 may be disposed in a machine room provided above the hoistway 22.

[0024] The control panel 30 is a computer including a CPU 31, a memory 32, and a wireless communication interface 33. The CPU 31, the memory 32, and the wireless communication interface 33 are connected by an internal bus .

[0025] The CPU 31 is a processor that processes information. The memory 32 stores a control program 35 and control program data 36 for executing the control program 35. The CPU 31 executes the control program 35 stored in the memory 32 to realize various control operations. The wireless communication interface 33 is a wireless communication module that is connected to the network 60 and that communicates with the monitoring device 40.

[0026] The control program 35 causes the car 21 to wait at the waiting floor when there is no call for the car 21. The control program 35 is executed by the CPU 31. The control program data 36 temporarily stores data when the CPU 31 executes the control program 35, and also stores setting values ​​and the like required for executing the control program 35.

[0027] [Monitoring device] The monitoring device 40 will be described with reference to FIGS.

[0028] The monitoring device 40 remotely monitors the elevator 20. As described above, the monitoring device 40 also sets waiting floors. The monitoring device 40 is installed in, for example, a management company that manages the elevator 20.

[0029] The monitoring device 40 is a computer including a CPU 41, which is a processor that processes information, a memory 42 that stores data, and a wireless communication interface 43. The CPU 41, the memory 42, and the wireless communication interface 43 are connected by an internal bus 44.

[0030] The CPU 41 is a processor that processes information. The memory 42 stores a processing program 45, data 46 for the processing program, an earthquake history database 47, and a diagnostic operation required time database 48. Note that the memory 42 may also store other programs and databases. The wireless communication interface 43 is a wireless communication module that is connected to the network 60 and that communicates with the control panel 30 of the elevator 20 and an external server 50.

[0031] The processing program 45 sets the waiting floor for the car 21 of the elevator 20 to the floor nearest the earthquake sensor 25 that detects the smallest shaking when an earthquake occurs. The processing program 45 is executed by the CPU 41. The operation of the processing program 45 will be described in detail later. The processing program data 46 temporarily stores data when the CPU 41 executes the processing program 45, and also stores setting values ​​and the like required for executing the processing program 45.

[0032] As shown in Fig. 4, the earthquake history database 47 is a database that stores, for each earthquake, the date and time, seismic intensity, the floors at which the car 21 stopped when the earthquake occurred, the vibrations of each earthquake sensor 25, and the results of diagnostic operation, in association with each other. "The floors at which the car 21 stopped when the earthquake occurred" includes the waiting floors at which the car 21 was waiting when the earthquake occurred, and the floors at which the car 21, operating when the earthquake occurred, made an emergency stop.

[0033] Diagnostic operation is an operation performed after an earthquake to automatically diagnose whether or not there is an abnormality in the elevator 20 and confirm its safety. In diagnostic operation, for example, the car 21 is operated at low speed, medium speed, and normal speed in that order to diagnose whether or not there is an abnormality in each piece of equipment in the elevator 20, such as the wire rope 23, counterweight 24, and control cables. The result of the diagnostic operation is deemed to be normal if, for example, no abnormality is found in any of the equipment. Furthermore, if, for example, there is an abnormality in the wire rope 23, it is diagnosed as an abnormality in the wire rope 23, the diagnostic operation is stopped, and the cause of the abnormality is identified by a maintenance and inspection worker. The contents of the diagnostic operation may differ depending on the elevator 20.

[0034] The diagnostic operation required time database 48 is a database that stores the correlation between the "stopping floor of the car 21 when an earthquake occurs" and the required time for diagnostic operation after an earthquake occurs. The required time for diagnostic operation after an earthquake occurs differs depending on the "stopping floor of the car 21 when an earthquake occurs." For example, in a diagnostic operation in which the car 21 is operated to the top floor, the higher the "floor where the car 21 will stop when an earthquake occurs" is, the shorter the required time. Also, in a diagnostic operation in which the car 21 is operated to the top floor and the bottom floor, the shorter the required time is when the "floor where the car 21 will stop when an earthquake occurs" is an intermediate floor. Since the contents of the diagnostic operation are set in advance for each elevator 20, the correlation between the "floor where the car 21 will stop when an earthquake occurs" and the required time for diagnostic operation after an earthquake occurs is set in advance in the diagnostic operation required time database 48.

[0035] [Waiting floor setting control] The operation of the monitoring device 40 (waiting floor setting control) will be described with reference to FIG.

[0036] In step S101, the CPU 41 determines whether an earthquake of a predetermined seismic intensity (for example, seismic intensity 4) or greater has occurred in the area where the building 5 is located, based on information distributed from the external server 50 via the network 60. If the CPU 41 determines YES in step S101, the process proceeds to step S102.

[0037] In step S102, the CPU 41 acquires the above-mentioned "stopping floor of the car 21 when an earthquake occurs" and stores it in the earthquake history database 47. In step S103, the CPU 41 acquires the shaking detected by each earthquake sensor 25 via the control panel 30 and stores it in the earthquake history database 47. In step S104, the CPU 41 acquires the earthquake sensor 25 that caused the least shaking when an earthquake occurred.

[0038] In step S104, the CPU 41 may add up the vibrations of the earthquake sensors 25 stored in the earthquake history database 47 and acquire the earthquake sensor 25 with the smallest added vibration. This makes it possible to set the waiting floor with the smallest vibration based on the vibration of the car 21 of the elevator 20 when an earthquake occurred in the past.

[0039] In step S105, the CPU 41 executes a diagnostic operation of the elevator 20 via the control panel 30. In step S106, the CPU 41 acquires an abnormality diagnosis of the diagnostic operation via the control panel 30 and stores it in the earthquake history database 47.

[0040] In step S107, the CPU 41 acquires the nearby floor of the earthquake sensor 25 with the smallest shaking extracted in step S104 (hereinafter referred to as the floor with the least shaking). Here, the nearby floor of the earthquake sensor 25 refers to the floor closest to the earthquake sensor 25. There may be multiple "floors with the least shaking." This makes it possible to set a waiting floor where shaking of the car 21 of the elevator 20 is minimized when an earthquake occurs. Furthermore, according to the waiting floor setting system 10, the waiting floor where shaking of the car 21 of the elevator 20 is minimized can be updated every time an earthquake occurs.

[0041] In step S108, the CPU 41 may refer to the earthquake history database 47 and exclude as many "floors where the car 21 stopped when an earthquake occurred" that were diagnosed as having an abnormality in a past diagnostic operation from the "floors with less shaking" extracted in step S107 as possible. This can reduce the possibility that an abnormality in the elevator 20 will be diagnosed again when an earthquake occurs.

[0042] Note that, when a waiting floor cannot be set in the processes of steps S107 and S108, the CPU 41 may prioritize the process of step S107. For example, when all "floors with less shaking" correspond to "stop floors for the car 21 when an earthquake occurs," the process of step S108 may not be performed. Also, when all floors of the building 5 correspond to "stop floors for the car 21 when an earthquake occurs," the process of step S108 may not be performed.

[0043] Furthermore, if the CPU 41 is unable to set a waiting floor in the processes of steps S107 and S108, it may prioritize the process of step S108. For example, if all of the "floors with less shaking" correspond to "floors where the car 21 will stop when an earthquake occurs," the floor nearest the earthquake sensor 25 with the second least shaking in step S107 may be set as the "floor with less shaking." It may be possible to set for each elevator 20 which of the processes of step S107 and step S108 is to be prioritized.

[0044] In step S109, the CPU 41 refers to the diagnostic operation required time database 48 and sets, as the standby floor, the floor for which the required time for diagnostic operation is shortest among the standby floors acquired in step S108. This makes it possible to improve the availability of the elevator 20.

[0045] It should be noted that the present invention is not limited to the above-described embodiment and its modifications, and various changes and modifications are possible within the scope of the claims of this application. [Explanation of symbols]

[0046] 5 Building, 10 Waiting floor setting system, 20 Elevator, 21 Car, 22 Hoistway, 23 Wire rope, 25 Earthquake detector, 26 Elevator, 30 Control panel, 31 CPU, 32 Memory, 33 Wireless communication interface, 34 Internal bus, 35 Control program, 36 Control program data, 37 Control data, 40 Monitoring device, 41 CPU, 42 Memory, 43 Wireless communication interface, 44 Internal bus, 45 Processing program, 46 Processing program data, 47 Earthquake history database, 48 Diagnostic operation time database, 50 External server, 60 Network

Claims

1. an elevator having a car that moves up and down in a hoistway, earthquake sensors that are provided at a plurality of locations along the height direction of the hoistway and that detect shaking when an earthquake occurs, and a control panel that causes the car to wait at a waiting floor when there is no call for the car; A monitoring device that sets the waiting floor; Equipped with The monitoring device sets the floor close to the earthquake sensor that detects the smallest shaking when an earthquake occurs as the standby floor. Elevator waiting floor setting system.

2. The elevator waiting floor setting system according to claim 1, The monitoring device sets, as the standby floor, a floor that requires the shortest time for diagnostic operation of the elevator after the earthquake occurrence, among the floors in the vicinity of the earthquake sensor that detects the smallest shaking when the earthquake occurs. Elevator waiting floor setting system.

Images