Elevator monitoring device, elevator monitoring system, and control method for elevator monitoring device

Abstract

The invention provides an elevator monitoring device, an elevator monitoring system and a control method of the elevator monitoring device. The communication interface (313) receives earthquake information sensed by the earthquake sensor (40) from at least one elevator system (1). When the magnitude of an earthquake sensed by the earthquake sensor (40) is greater than or equal to a predetermined level, the processor (311) generates a restriction request indicating that the travel of an emergency travel zone in which the distance between floors at which the car (10) can stop is greater than or equal to a predetermined distance within a certain period of time from the earthquake sensor (40) sensing the earthquake. A communication interface (313) transmits a restriction request to an elevator system (1) provided with an earthquake sensor (40) that senses an earthquake at a predetermined level or higher.

Description

Technical Field

[0001] This disclosure relates to elevator monitoring devices, elevator monitoring systems, and control methods for elevator monitoring devices. Background Technology

[0002] When an earthquake occurs and the seismic sensors installed in the elevator detect a certain amount of shaking, the elevator's operation is controlled in real time, allowing the elevator car to travel to the nearest floor and open the doors. This ensures that passengers can evacuate from the elevator car during an earthquake.

[0003] Japanese Patent Application Publication No. 2002-46953 discloses an elevator earthquake monitoring device. When this device receives detection information of an earthquake of a predetermined magnitude or higher from a building equipped with earthquake sensors, it sends earthquake-controlled operation commands to the elevators in that building and to elevators in geographically proximate buildings. This enables reliable earthquake-controlled operation even in buildings without earthquake sensors.

[0004] During an earthquake, if certain conditions are met, such as an elevator malfunctioning during controlled operation, the elevator car may be unable to reach the nearest floor, trapping passengers inside. In this situation, elevator maintenance personnel will arrive at the building to move the car to the nearest floor and rescue the passengers.

[0005] In cases where passengers are trapped in numerous buildings near the epicenter of an earthquake, insufficient maintenance personnel sometimes result in prolonged passenger confinement. Following a major earthquake, there is a high probability of significant aftershocks occurring within a certain period, which could further increase the workload for maintenance personnel and lead to prolonged passenger confinement. Summary of the Invention

[0006] Especially in the event of an earthquake (aftershock) while traveling in the fast-moving section between floors, where the ascent and descent are lengthy, the likelihood of passengers being trapped is high. Furthermore, if passengers are trapped midway through the fast-moving section, the distance to the nearest floor is long, thus the rescue operation will be time-consuming. The earthquake monitoring device for the elevator disclosed in Patent Document 1 does not investigate the relationship between aftershocks, the fast-moving section, and the occurrence of passenger entrapment; this aspect has room for improvement.

[0007] This disclosure was made to solve the above-mentioned problems, and its purpose is to provide a technology that can reduce the number of passengers trapped in elevators during an earthquake and reduce the burden on maintenance personnel in responding to earthquakes.

[0008] The elevator monitoring device disclosed herein is configured to communicate with at least one elevator system. Each of the at least one elevator system includes a seismic sensor and an elevator control device. The seismic sensor detects earthquakes. When an earthquake is detected by the seismic sensor while the elevator car is in motion, the elevator control device controls the opening of the car doors after the car has traveled to the nearest floor. The elevator monitoring device includes a communication unit and a control unit. The communication unit receives earthquake information detected by the seismic sensor from each of the at least one elevator system. If the magnitude of the earthquake detected by the seismic sensor is above a predetermined level, the control unit generates a restriction request indicating that the car's travel in the express zone, where the distance between floors to which it can stop is at least a predetermined distance, is restricted for a certain period of time after the earthquake is detected. The communication unit sends the restriction request to the elevator system equipped with the seismic sensor that detected an earthquake of the predetermined level or above.

[0009] In the event of an earthquake while the elevator is operating in the express zone, the likelihood of passengers being trapped increases. Furthermore, if the magnitude of the earthquake detected by the seismic sensor is above a predetermined level, the probability of aftershocks occurring within a certain period after the earthquake is detected is high. By restricting the operation of the express zone for a certain period after the earthquake is detected when the magnitude of the earthquake detected by the seismic sensor is above a predetermined level, the probability of passengers being trapped due to aftershocks during express zone operation can be reduced, and the burden on maintenance personnel performing long-distance rescue operations from the location of trapped passengers in the middle of the express zone to the nearest floor can be reduced. Therefore, the number of passenger entrapment incidents during an earthquake can be reduced, and the burden on maintenance personnel in responding to earthquakes can be decreased.

[0010] The elevator monitoring system disclosed herein includes an elevator monitoring device and at least one elevator system. Each of the at least one elevator system, upon detecting an earthquake by its seismic sensor, sends earthquake information sensed by the seismic sensor to the elevator monitoring device. Upon receiving a restriction request, the elevator control device of each of the at least one elevator system, based on the restriction request, controls the car to restrict its travel in the emergency lane for a certain period of time. By configuring it in this way, the number of passenger entrapments during an earthquake can be reduced, and the workload of maintenance personnel in responding to earthquakes can be decreased.

[0011] The control method disclosed herein is a control method for an elevator monitoring device configured to communicate with at least one elevator system. Each of the at least one elevator system has a seismic sensor and an elevator control device. The seismic sensor detects an earthquake. When the seismic sensor detects an earthquake while the elevator car is in motion, the elevator control device controls the car to open its doors after the car has traveled to the nearest floor. The control method includes the following steps: receiving earthquake information detected by the seismic sensor from each of the at least one elevator system; generating a restriction request if the magnitude of the earthquake detected by the seismic sensor is above a predetermined level, indicating that the car's travel in the express zone, where the distance between floors to which it can stop is above a predetermined distance, is restricted for a certain period of time from the time the earthquake is detected; and sending the restriction request to the elevator system equipped with a seismic sensor that has detected an earthquake of the predetermined level or above. With this configuration, the number of passenger entrapments during an earthquake can be reduced, and the burden on maintenance personnel in responding to earthquakes can be decreased.

[0012] The above and other objects, features, aspects and advantages of the present invention will become clear from the following detailed description of the invention, which is understood in conjunction with the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a diagram illustrating an example of the overall structure of the monitoring system according to the first embodiment.

[0014] Figure 2 This is a diagram illustrating an example of the hardware structure of a monitoring system.

[0015] Figure 3 This diagram illustrates the floors where parking is permitted when there are no parking restrictions.

[0016] Figure 4 This is a diagram showing parking restriction information.

[0017] Figure 5 This is a diagram used to illustrate the floors where parking restrictions exist.

[0018] Figure 6 It is a flowchart of the processes performed by the monitoring system.

[0019] Figure 7 This is a diagram illustrating the docking restriction information of the second embodiment.

[0020] Figure 8 This diagram illustrates the floors where aircraft C can dock, assuming only the C unit has docking restrictions.

[0021] Figure 9 It is a flowchart of the processes performed by the monitoring system. Detailed Implementation

[0022] The embodiments will now be described with reference to the accompanying drawings. In the following description, the same reference numerals are used to denote the same components. Their names and functions are also the same. Therefore, detailed descriptions of them will not be repeated.

[0023] [First Implementation]

[0024] Figure 1 This is a diagram showing an example of the overall structure of the monitoring system 100 according to the first embodiment. The monitoring system (also called an "elevator monitoring system") 100 includes a monitoring device (also called an "elevator monitoring device") 300 and at least one elevator system 1. The monitoring system 100 may include one elevator system 1 or more elevator systems 1. The case where multiple elevator systems 1 are included in this embodiment will be described below.

[0025] Monitoring device 300 is installed in the information center 3 of the maintenance company that performs elevator maintenance. The monitoring device 300, managed by the head maintenance company, manages multiple elevator systems 1 located in multiple buildings (in this example, buildings 2, 2a, 2b, etc.). The monitoring device 300 is configured to communicate with these multiple elevator systems 1. The monitoring device 300 monitors the occurrence of earthquakes in each elevator system 1 and manages earthquake recovery responses in each elevator system 1.

[0026] In the event of an earthquake and the seismic sensor 40 installed in the elevator detects a certain degree of shaking, the elevator car 10 is controlled to travel to the nearest floor while it is in motion (operation of controlled operation during an earthquake). Once the car 10 reaches the nearest floor, the doors open, allowing passengers to disembark. For example, if the aforementioned shaking is detected while the car 10 is traveling between the 6th and 7th floors, the car 10 opens its doors after reaching the nearest floor, either the 6th or 7th floor. Afterwards, the elevator (car 10) can be used again if certain conditions are met.

[0027] On the other hand, in the event of a major earthquake of a certain magnitude, or if the elevator experiences abnormalities or a power outage during an earthquake, the car 10 may sometimes stop between floors. In such cases, passengers may be trapped inside the car 10 and unable to disembark. If the elevator cannot stop at the nearest floor, elevator maintenance personnel will arrive at the building to move the car 10 to the nearest floor and rescue the passengers.

[0028] Following a major earthquake, there is a high probability of significant aftershocks occurring within a certain period. Even after such an aftershock, passengers may become trapped. When passengers are trapped, as described above, maintenance personnel will conduct rescue operations. However, if the distance to the nearest floor is large (for example, if car 10 stops in a long emergency travel section as described later), the rescue operation will take a considerable amount of time. Furthermore, the probability of passengers becoming trapped is high if an earthquake (aftershock) occurs while the car is traveling in the emergency travel section.

[0029] Therefore, in this embodiment, when an earthquake of a predetermined magnitude or higher is detected by the earthquake sensor 40, the elevator car 10 is controlled to restrict its movement in the emergency travel zone for a certain period of time. This minimizes the possibility of passengers being trapped inside the elevator car 10 in the emergency travel zone. In this way, the number of passenger entrapments during an earthquake can be reduced, and the workload of maintenance personnel in responding to earthquakes can be decreased.

[0030] Multiple elevator systems 1 (elevator systems 1 in buildings 2, 2a, 2b, etc.) are each equipped with an earthquake sensor 40 for detecting earthquakes, a control device 20 as an elevator control device, and a communication device 50. When the earthquake sensor 40 detects an earthquake while the elevator car 10 is in motion, the control device 20 controls the opening of the car 10 doors after the car 10 has traveled to the nearest floor. In the case where elevator system 1 has multiple elevators, each elevator is equipped with an earthquake sensor 40, a control device 20, and a communication device 50.

[0031] Below, examples Figure 1 The elevator system 1 in the 7-story building 2 is configured to include elevator 1a (also known as "machine A"), elevator 1b (also known as "machine B"), and elevator 1c (also known as "machine C").

[0032] Each of the elevators 1a to 1c (units A to C) is equipped with a control device 20, a seismic sensor 40, a communication device 50, and an elevator unit 30 (described later). Figure 2 ).

[0033] The control device 20 is a control board that controls the elevator unit 30. The elevator unit 30 is configured to include a traction machine 250, landing devices (not shown) installed at each floor from the 1st floor (1F) to the 7th floor (7F), a car device (not shown) installed in the car 10, and various sensors and switches used in the elevator system 1.

[0034] The traction machine 250 is a motor that drives the elevator car 10 to move up and down. The car equipment includes various devices installed in the car 10, including destination floor buttons (car call buttons) for registering the destination floor (not shown). The landing equipment includes various devices installed at each floor, including landing call buttons (not shown) for registering floor calls.

[0035] The car 10 is installed in the hoistway 8 located within the building 2. The car 10 moves up and down within the hoistway 8 and between multiple floors. In this embodiment, the cars 10 of units A to C can stop at each floor from the 1st floor (1F) to the 5th floor (5F) to the 7th floor (7F).

[0036] A machine room 5 is located directly above the shaft 8. The machine room 5 contains a traction machine 250, a control device 20, a seismic sensor 40, and a communication device 50.

[0037] In this embodiment, the elevator is a traction elevator. A traction elevator is a type of rope elevator. As the elevator device 30, this elevator also includes a car 10, a counterweight 12, a rope 11, and a guide pulley 13. The rope (main rope) 11 is suspended from the traction machine 250 and the guide pulley 13. The car 10 and the counterweight 12 are suspended at both ends of the rope 11.

[0038] The elevator, driven by the traction machine 250, allows the car 10, located within the hoistway 8, to travel in either the upward (also known as the "UP direction") or downward (also known as the "DN direction"). A buffer (shock absorber) 14 is installed in the pit 6, which forms the bottom of the hoistway 8. The buffer 14 is a device that absorbs the impact of the car 10 falling due to an abnormality.

[0039] When a floor call button in the UP or DN direction is pressed, car 10 of any of the following machines (A through C) is assigned. The assigned car 10 responds to the floor call and travels to the registered floor. When a car call button for each destination floor located within car 10 is pressed, car 10 travels to the destination floor indicated by the pressed call button.

[0040] Figure 2 This diagram illustrates an example of the hardware structure of the monitoring system 100. The monitoring device 300 includes a processor 311 as a control unit, a memory 312 as a storage unit, a communication interface 313 as a communication unit, a display unit 321, and an input unit 322. They are interconnected communicatively via a bus.

[0041] The processor 311 is, for example, a CPU (Central Processing Unit). The memory 312 may also be configured to include ROM (Read Only Memory), RAM (Random Access Memory), and a storage unit. The storage unit is a non-volatile storage device. The storage unit may also be, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), etc.

[0042] The processor 311 reads the program stored in the ROM into the RAM and executes it to realize the various functions of the monitoring device 300. The ROM stores the program that describes the processing procedure of the monitoring device 300. The RAM becomes the working area of ​​the processor 311 when executing the program, temporarily storing the program, data during program execution, etc.

[0043] The monitoring device 300 can be connected to the communication devices 50 installed in elevators of various buildings via the communication interface 313. The display unit 321 displays various information. The display unit 321 is, for example, a liquid crystal display or a monitor. The input unit 322 accepts input from the user to the monitoring device 300. The input unit 322 is, for example, a keyboard or a mouse.

[0044] The monitoring device 300 monitors the elevator systems 1 of each building. The communication device 50 sends (transmits) various elevator information obtained from the control device 20 of the car 10 to the monitoring device 300. The communication device 50 also includes a processor (CPU), a memory (ROM, RAM), and a communication interface (not shown). They are interconnected via a bus.

[0045] The control unit 20 also includes a processor (CPU), memory (ROM, RAM), and communication interface (not shown). These are interconnected via a bus. Each of the control units 20 for units A through C controls its respective elevator unit 30. Furthermore, the control unit 20 for unit A is configured to communicate with the control units 20 for units B and C, enabling the transmission and reception of information between the units.

[0046] When a landing call is registered by pressing a landing button, the control device 20 of machine A assigns the landing call to the car 10 of any of machines A through C. For example, assuming a landing call to the 1st floor in the UP direction is registered, the control device 20 of machine A assigns this landing call to machine B. In this case, the control device 20 of machine A sends a response command for the landing call to the control device 20 of machine B. The control device 20 of machine B causes the car 10 of machine B, which was assigned the 1st floor UP direction landing call, to travel to the 1st floor to respond to the landing call.

[0047] The control device 20 for Unit A can also be composed of a single board. Alternatively, the control device 20 for Unit A can be composed of individual control boards that control the elevator units 30 of Unit A, and a group management control board that communicates with the control boards of Units A through C. In this case, the control devices 20 for Units B and C function as individual control boards that control the respective elevator units 30.

[0048] The group management control board of Unit A communicates with each control board of Units A through C to allocate the aforementioned floor call. For example, if the group management control board of Unit A allocates a floor call to Unit C, a response command for that floor call will be sent to each control board of Unit C.

[0049] In this embodiment, each elevator is configured to have a seismic sensor 40 and a communication device 50. However, if a group management control board is provided as described above, it can also be configured to have one communication device 50, one seismic sensor 40, and the group management control board. In this case, the group management control board can collect information from elevators A through C and information from the seismic sensor 40, and transmit this information to the monitoring device 300 via the communication device 50.

[0050] Earthquake sensor 40 is a device for sensing earthquakes. Control device 20 acquires earthquake signals from earthquake sensor 40 (e.g., signals to determine P-waves or S-waves and signals to determine the intensity of the earthquake (magnitude, weak, strong, etc.)).

[0051] The control device 20 enables the car 10 to operate based on earthquake signals detected by the earthquake sensor 40 (earthquake-controlled operation). Specifically, when an earthquake signal is detected, the control device 20 causes the car 10 to move towards the nearest floor. In the event of a large earthquake or the detection of certain anomalies, the control device 20 stops the car in place and does not move towards the nearest floor. In such cases, passengers may be trapped.

[0052] Furthermore, the monitoring device 300 can communicate with the elevator systems 1 (control devices 20) installed in each of the buildings 2a-2e managed by the information center 3 via the communication devices 50 of each unit. The communication devices 50 can send signals to the monitoring device 300 containing earthquake signals detected by the earthquake sensors 40. The communication interface 313 of the monitoring device 300 obtains various information about the elevators containing earthquake signals from the earthquake sensors 40 installed in each building.

[0053] Therefore, the monitoring device 300 can acquire various information about the elevator and can monitor the situation when an earthquake occurs in a building equipped with an elevator. The signals acquired by the monitoring device 300 are not limited to earthquake signals (P-waves, S-waves, earthquake magnitude, etc.), but may also include signals indicating that the elevator has stopped due to an earthquake, signals that can determine the status of trapped passengers, etc.

[0054] Furthermore, as described above, a communication device 50 can be installed for each elevator unit, or one communication device 50 can be installed in the elevator system 1. Additionally, a seismic sensor 40 can be installed for each elevator unit, or one seismic sensor 40 can be installed in the elevator system 1.

[0055] The memory 312 of the monitoring device 300 stores building information 367 and historical information 368. The building information 367 records specifications related to buildings 2a to 2e managed by the information center 3 (maintenance company) and the elevator systems 1 installed in each building. The building information 367 includes information about the installation area of ​​each elevator system 1. The installation area information includes, for example, the location (residence) of the building where the elevator system 1 is installed.

[0056] Historical information 368 records information transmitted by each earthquake sensor 40 (e.g., P-wave, S-wave, and other earthquake signals) and abnormal information obtained from elevator system 1, such as whether passengers are trapped.

[0057] In addition, the monitoring device 300 collects and manages earthquake information, regional information, and maintenance personnel information. Regional information includes map information of the surrounding areas of each building managed by the information center 3. The monitoring device 300 accesses the meteorological information server 500 (e.g., a meteorological bureau server) that distributes earthquake information for the region to obtain regional earthquake information (seismic intensity information for various locations).

[0058] The monitoring device 300 receives the transmission information from the earthquake sensor 40. If the received earthquake magnitude is above a predetermined level (the earthquake intensity is above a specified value), it sends a restriction request (stopping restriction) to the elevator equipped with the earthquake sensor 40 and to elevators in the surrounding area (the area surrounding the epicenter) where an earthquake of the predetermined level or above has occurred (details will be provided later). Figure 2 In the example, a restriction request is sent to elevator systems 1 in buildings 2, 2a, and 2b, which are determined to be located within the aforementioned area. On the other hand, a restriction request is not sent to elevator systems 1 in buildings 2c and 2d, which are determined to be located outside the aforementioned area.

[0059] Figure 3 This diagram illustrates the floors that can be stopped when there are no stopping restrictions. As mentioned above, each car 10 of elevators 1a to 1c (machines A to C) can stop at the 1st floor and the 5th to 7th floors, but cannot stop at the 2nd to 4th floors, which are non-stopping floors.

[0060] Building 2 also includes elevators D, E, and F (not shown). Elevators D through F serve floors 1 through 4 as elevators operating in the lower floors. Elevators A through C serve floors 1 and 5 through 7 as elevators operating in the upper floors.

[0061] In the travel corridor of machines A through C, the distance between floors where the car 10 can stop is a high-speed zone (area with a longer lifting process) exceeding the specified distance. In this example, building 2 has floors 1 through 7, of which machines A through C can stop on floors 1, 5, 6, and 7.

[0062] For example, in floors 1 through 7, the distance between each floor is 3.5m. In this case, the distance between the 1st and 5th floors (where parking is allowed) is 14m (4 floors × 3.5m). The distance between the 5th and 6th floors (where parking is allowed) is 3.5m. The distance between the 6th and 7th floors (where parking is allowed) is also 3.5m. For example, let's assume the above "specified distance" = 10m. In this case, the area between the 1st and 5th floors (where the distance between the 1st and 5th floors is 14m ≥ 10m) becomes an emergency zone.

[0063] Additionally, if the travel time of the car 10 between floors where the car 10 can stop exceeds a predetermined time, it can also be designated as an express zone. Alternatively, if there is one (or more) floors between floors where the car 10 can stop, that area can also be designated as an express zone. In this embodiment, for convenience, the area with a longer lifting process is defined as an "express zone".

[0064] In the absence of stopping restrictions (floor restrictions) (normally), the cars 10 of machines A through C can stop at the 1st floor and floors 5 through 7. Therefore, if a call for elevator service occurs at any floor among the 1st floor and floors 5 through 7, the control device 20 of machine A can assign the call to the car 10 of any machine among machines A through C.

[0065] For example, if car 10 of elevator A (hereinafter also referred to as "Elevator A"; the same applies to elevators B and C) is stopped on the 1st floor and Elevator A is assigned to a call that occurs on the 5th to 7th floor, Elevator A will respond to the call by passing through the emergency lane.

[0066] Furthermore, for example, if Aircraft B is docked on the 7th floor and is assigned to a call for elevator service in the UP direction on the 1st floor, Aircraft B will respond to the call by passing through the emergency exit area. On the other hand, if Aircraft C is docked on the 5th floor and is assigned to an call for elevator service in the UP direction on the 6th floor, Aircraft B will not pass through the emergency exit area.

[0067] In the event of an earthquake while the train is traveling in the emergency zone, the car 10 may stop midway through the emergency zone, trapping passengers. In this situation, maintenance personnel will need to move the car 10 to the nearest floor, either the 1st or 5th floor, to rescue the passengers. Compared to the situation where passengers are trapped between the 5th and 7th floors, the distance the car 10 needs to travel is longer and the rescue time is longer when passengers are trapped midway through the emergency zone.

[0068] In particular, the possibility of aftershocks is high within a certain period of time following a major earthquake. Therefore, in this embodiment, as described below, the car 10 is configured to avoid stopping in the middle of the emergency travel zone even in the event of an aftershock.

[0069] Figure 4 This is a diagram showing docking restriction information 90. Docking restriction information 90 shows the docking restrictions applied to units A through C in building 2 immediately after an earthquake of a predetermined magnitude or higher (an earthquake of intensity above a specified value).

[0070] If an earthquake is detected by any one or more of the multiple earthquake sensors 40 installed in building 2, earthquake information is reported (sent) to monitoring device 300 via communication device 50. If the intensity of the earthquake is above a predetermined value, monitoring device 300 sends a restriction request to elevator systems 1 in buildings within the vicinity of the epicenter of building 2. Elevator systems 1 that receive the restriction request implement stop restrictions based on stop restriction information.

[0071] In the docking restriction information 90 applied to machines A through C in Building 2, the unrestricted machines, restricted machines, and restricted floors are shown, corresponding to the elapsed time (restriction time) since an earthquake of intensity exceeding a specified value occurred. Unrestricted machines are those capable of assigning (registering) calls to landings in the emergency lane and registering calls to car elevators in the emergency lane. In unrestricted machines, no restrictions are imposed on the assignment of landing calls or the registration of car calls. In this case, movement to floors 1, 5, 6, and 7 is possible.

[0072] On the other hand, machines that are not non-unrestricted (referred to as "restricted machines") are not permitted to assign calls to elevators on floors in the express zone or register calls to elevators in the express zone. Specifically, they are not permitted to register calls to elevators on the 1st floor (UP) or the 5th floor (DN) in the express zone, nor are they permitted to register calls to elevators from the 1st to the 5th floor, from the 1st to the 6th floor, from the 1st to the 7th floor, from the 7th floor to the 1st floor, from the 6th floor to the 1st floor, or from the 5th floor to the 1st floor. That is, car 10 is prohibited from stopping on the 1st floor, and in this case, car 10 can only move between the 5th and 7th floors.

[0073] That is, a machine number that is allowed to serve the 1st floor (able to move between floors 1, 5, 6, and 7) is a "non-restricted machine number," while a machine number that is not allowed to serve the 1st floor (able to move between floors 5, 6, and 7) is a "restricted machine number." Furthermore, for restricted machines, it is also possible to only restrict the allocation of floor calls without restricting the registration of car calls, or only restrict the registration of car calls without restricting the allocation of floor calls.

[0074] The following information is recorded in the docking restriction information 90: If the elapsed time T from an earthquake with a seismic intensity of ≥1000 is TA seconds or less (0 ≤ elapsed time T ≤ TA), one unrestricted aircraft is set (aircraft A in this case), two restricted aircraft are set (aircraft B and C in this case), and the restricted floor is floor 1. Furthermore, the following information is recorded in the docking restriction information 90: If the elapsed time T exceeds TA, all unrestricted aircraft (aircraft A through C) are set, meaning the docking restriction is lifted.

[0075] That is, from the occurrence of an earthquake of intensity above a specified value until TA seconds later, elevator system 1 will restrict stops to only one non-restricted elevator (Elevator A). Figure 5 ). Figure 5 This is a diagram used to illustrate the floors where parking restrictions exist.

[0076] like Figure 5As shown, even under conditions of stop restrictions, Machine A can respond to calls from any floor (floor 1, floors 5-7) and register car calls from any floor (floor 1, floors 5-7). In other words, Machine A is a non-restricted machine capable of operating in the emergency lane.

[0077] On the other hand, under the condition of stop restrictions, machines B and C are prohibited from serving the 1st floor. Therefore, even if a call is made on the 1st floor, machines B and C will not be assigned to that call, and they cannot register calls for elevators going to the 1st floor. In other words, machines B and C are restricted machines that cannot operate in the express zone.

[0078] In the TA seconds following an earthquake of intensity above a specified value, to minimize the possibility of passengers being trapped in the express zone due to aftershocks, as described above, the number of cars that can operate in the express zone is limited to 1 (Aircraft A). Alternatively, in the TA seconds following an earthquake of intensity above a specified value, the number of cars that can operate in the express zone may be limited to 0, or to 2.

[0079] The docking restriction information 90 can be maintained by either the control device 20 or the monitoring device 300. For example, if the control device 20 maintains the docking restriction information 90, a maintenance terminal held by maintenance personnel can be connected to the control device 20, and the docking restriction information 90 can be preset from the maintenance terminal. For example, in the maintenance terminal, the settings are: unrestricted machine = machine A, restricted machines = machines B and C, restricted floor = floor 1, TA = 1800 seconds, and the control device 20 maintains the docking restriction information 90 generated based on this setting. When the control device 20 receives a restriction request from the monitoring device 300, it executes the docking restriction according to the maintained docking restriction information 90.

[0080] When the monitoring device 300 maintains the docking restriction information 90, the docking restriction information 90 can be set and maintained in the monitoring device 300. In this case, the monitoring device 300 sends a restriction request containing the docking restriction information 90 to the control device 20. The control device 20 executes the docking restriction according to the received docking restriction information 90. The following description illustrates the case where the monitoring device 300 maintains the docking restriction information 90.

[0081] The following explanation uses a flowchart. Figure 6 This is a flowchart of the processes performed by the monitoring system 100. Elevator-side processing is the processing performed by the elevator system 1. Monitoring device-side processing is the processing performed by the monitoring device 300. Hereinafter, "step" will be abbreviated as "S".

[0082] When an earthquake is detected by the earthquake sensor 40, multiple elevator systems 1 send earthquake information detected by the earthquake sensor 40 to the monitoring device 300. In this example, the case where the earthquake sensor 40 of the elevator system 1 in building 2 detects an earthquake will be used as an example for explanation.

[0083] In the elevator-side processing, when an earthquake is detected by the corresponding earthquake sensor 40 in elevator system 1 of building 2 (S101), the control device 20 of any elevator in the system transmits (reports) the earthquake information detected by the earthquake sensor 40 to the monitoring device 300 via the communication device 50 (S102). For example, as earthquake information, information indicating that a P-wave / S-wave has been detected, the earthquake intensity (or information indicating the strength of the earthquake, such as "low" / "high"), etc., are transmitted.

[0084] During the monitoring device side processing, the communication interface 313 of the monitoring device 300 receives earthquake information from the elevator system 1 of the building 2 (S201). For example, if all the earthquake sensors 40 of units A to C detect an earthquake, earthquake information is reported from all the communication devices 50 corresponding to them.

[0085] In this example, we will describe an example of the monitoring device 300 receiving earthquake information from building 2. However, the monitoring device 300 can receive earthquake information sensed by earthquake sensor 40 from multiple elevator systems 1 in multiple buildings other than building 2.

[0086] If the magnitude of an earthquake sensed by the earthquake sensor 40 is above a predetermined level, the processor 311 of the monitoring device 300 generates a restriction request indicating a restriction on travel in the emergency zone within a certain period of time from the time the earthquake is sensed by the earthquake sensor 40. An earthquake magnitude above a predetermined level could be, for example, an earthquake intensity above a specified value, or an earthquake sensor 40 sensing a "high" (high gamma) level, or an earthquake of such magnitude that a safety check based on diagnostic operation is required after the earthquake has occurred.

[0087] Specifically, in the monitoring device side processing, if the seismic intensity (the size of the earthquake sensed by the earthquake sensor 40) in the earthquake information received from the elevator system 1 is above a predetermined value (a pre-determined level) (Yes in S202), the processor 311 of the monitoring device 300 causes the processing to proceed to S203; if it is below the predetermined value (No in S202), the monitoring device side processing ends.

[0088] In S203, the processor 311 of the monitoring device 300 extracts an area containing buildings equipped with earthquake sensors 40 that detect seismic intensity above a predetermined value; this area is an area with seismic intensity above a predetermined value. In S204, the processor 311 of the monitoring device 300 extracts the elevator system 1 of the buildings included in the extracted area.

[0089] Specifically, the processor 311 of the monitoring device 300 extracts the elevator system 1 installed in the building located in the area where an earthquake of intensity above the specified value occurred, based on the information of the setting area (the location of each building) and the earthquake information of the area (the area where an earthquake of intensity above the specified value occurred) stored in the building information 367.

[0090] For example, suppose building 2 is located in area C of city B in county A (building information 367). In this embodiment, the monitoring device 300 accesses a meteorological information server 500 that distributes earthquake information to a region (area) to obtain the region's earthquake information. As the region's earthquake information, information indicating that an earthquake of intensity of a predetermined value or higher occurred in area C within city B of county A and the adjacent area D is obtained. Areas C and D of city B in county A are areas that include building 2 and are areas where an earthquake of intensity of a predetermined value or higher occurred.

[0091] Monitoring device 300 retrieves elevator systems 1 from buildings managed by information center 3 (maintenance company) located in areas C and D of City B in County A (the area surrounding the earthquake epicenter). Figure 2 In the example shown, elevator systems 1 of buildings 2, 2a, and 2b were managed in areas C and D of City B in County A (the area surrounding the epicenter), and these systems were extracted.

[0092] The processor 311 of the monitoring device 300 generates a restriction request based on the stop restriction information for the elevator system 1 of the extracted building (S205). The communication interface 313 of the monitoring device 300 sends the generated restriction request to the elevator system 1 of the extracted building (S206). In this example, restriction requests are sent to the elevator systems 1 of buildings 2, 2a, and 2b respectively. For example, a restriction request containing [information missing] is sent to the elevator system 1 of building 2. Figure 4 The docking restriction information 90 shown is a restriction request.

[0093] Thus, the communication interface 313 of the monitoring device 300 sends a restriction request to the elevator system 1 of building 2, which is equipped with an earthquake sensor 40 that senses an earthquake exceeding a specified value. In addition, using regional earthquake information, restriction requests are also sent to the elevator systems 1 of buildings 2a and 2b located in the area where an earthquake exceeding a specified value has occurred.

[0094] Upon receiving a restriction request, the control devices 20 of the multiple elevator systems 1 control the car 10 to restrict the travel of the emergency lane for a certain period of time based on the restriction request.

[0095] Specifically, in the elevator-side processing, when the control device 20 of the elevator system 1 in building 2 receives a restriction request (S103), it sets the restricted machine number, restricted floor, and restricted time based on the stop restriction information 90 (S104). Based on the above settings, the stop restriction is implemented (S105), and the elevator-side processing ends. Stop restrictions are also implemented in buildings 2a and 2b in the same way, not limited to building 2.

[0096] The elevator car 10, controlled by the control device 20 of the elevator system 1 in building 2 that receives the restriction request, includes elevators B and C as first cars and elevator A as a second car. The "restriction request" is a request to prohibit the allocation of landing calls and the registration of car calls in elevators B and C that include the travel zone of an earthquake, for a certain period of time after the earthquake sensor 40 detects an earthquake with a seismic intensity of more than a specified value.

[0097] Specifically, in Building 2 of this example, units B and C are set as restricted units, the 1st floor is set as a restricted floor, and the period from 0 seconds to TA seconds is set as a restricted time. Therefore, from the occurrence of an earthquake that senses an earthquake exceeding the specified value until TA seconds have elapsed, such as... Figure 5 As shown, only Unit A can serve all floors (floors 1 and 5-7), while Units B and C can serve floors 5-7 (but cannot serve floor 1 when traveling in the express zone).

[0098] As explained above, in the first embodiment, the monitoring device 300 is configured to communicate with at least one elevator system 1. Each elevator system 1 includes an earthquake sensor 40 and a control device 20 as an elevator control device. The earthquake sensor 40 senses earthquakes. When the earthquake sensor 40 senses an earthquake while the elevator car 10 (elevators 1a-1c (units A-C, etc.)) is in motion, the control device 20 controls the opening of the car 10 door after the car 10 has traveled to the nearest floor. The monitoring device 300 includes a communication interface 313 as a communication unit and a processor 311 as a control unit. The communication interface 313 receives earthquake information sensed by the earthquake sensor 40 from each of the at least one elevator system 1. When the magnitude of the earthquake sensed by the earthquake sensor 40 is at or above a predetermined level, the processor 311 generates a restriction request indicating that the car 10's movement in the rapid zone, where the distance between floors to which it can stop is at or above a predetermined distance, is restricted for a certain period of time after the earthquake sensor 40 senses the earthquake. The communication interface 313 sends a restriction request to the elevator system 1, which is equipped with an earthquake sensor 40 that can sense earthquakes of a predetermined level or higher.

[0099] Furthermore, the monitoring system 100 includes a monitoring device 300 and at least one elevator system 1. When an earthquake is detected by the earthquake sensor 40, each of the at least one elevator system 1 sends earthquake information detected by the earthquake sensor 40 to the monitoring device 300. Upon receiving a restriction request, the control device 20 of each of the at least one elevator system 1 controls the car 10 to restrict its movement in the emergency lane for a certain period of time based on the restriction request.

[0100] In the event of an earthquake while the elevator is operating in the express zone, the likelihood of passengers being trapped increases. Furthermore, if the magnitude of the earthquake detected by the earthquake sensor 40 is greater than or equal to a predetermined level, the probability of aftershocks occurring within a certain period after the earthquake is detected is high. By restricting the operation of the express zone for a certain period after the earthquake is detected when the magnitude of the earthquake detected by the earthquake sensor 40 is greater than or equal to a predetermined level, the probability of passengers being trapped due to aftershocks during operation in the express zone can be reduced, and the burden on maintenance personnel performing long-distance rescue operations from the trapped location in the express zone to the nearest floor can be reduced. Therefore, the number of passenger entrapments during an earthquake can be reduced, and the burden on maintenance personnel in responding to earthquakes can be decreased.

[0101] The monitoring device 300 also includes a memory 312 as a storage unit. The memory 312 stores information about the installation area of ​​at least one elevator system 1. The communication interface 313 accesses a meteorological information server 500 that distributes earthquake information for the area to obtain the earthquake information for the area. Based on the information about the installation area and the earthquake information for the area, the processor 311 extracts the elevator systems 1 installed in areas where earthquakes of a predetermined magnitude or higher have occurred. The communication interface 313 sends a restriction request to the elevator systems 1 extracted by the processor 311. As a result, not only for elevator systems 1 in buildings 2 equipped with earthquake sensors 40, but also for elevator systems 1 in buildings without earthquake sensors 40, the travel in the emergency lane is restricted for a certain period of time from the detection of the earthquake. Therefore, it is possible to further reduce the number of passengers trapped in the elevators during an earthquake and further reduce the burden on maintenance personnel in responding to earthquakes.

[0102] The elevator car 10, controlled by the control device 20 of the elevator system 1 which receives the restriction request, includes a first car (cars B and C) and a second car (car A). The restriction request is a request to prohibit the allocation of floor calls and the registration of car calls, including those involving the emergency travel zone, in cars B and C for a certain period of time after an earthquake is detected by the earthquake sensor 40. Thus, by allowing emergency travel in car A, passenger convenience (access to the first floor) can be ensured, and by prohibiting emergency travel in cars B and C, the number of passengers trapped in the elevator during an earthquake can be reduced, and the burden on maintenance personnel in responding to earthquakes can be decreased.

[0103] [Second Implementation]

[0104] Next, the monitoring system 100 of the second embodiment will be described. The docking restriction information of the monitoring system 100 of the second embodiment is different from that of the monitoring system 100 of the first embodiment. Hereinafter, only the differences from the first embodiment will be described, and the parts common to the first embodiment will be omitted.

[0105] In the second embodiment, the elevator car 10 controlled by the control device 20 of the elevator system 1 that receives the restriction request includes car C as the first car 10, car B as the second car 10, and car A as the third car 10. The restriction request is as follows: after a first time (0 to time T1) from the moment an earthquake of intensity above a specified value is sensed by the earthquake sensor 40, the allocation of landing calls and the registration of car calls involving the emergency travel area are prohibited in cars C and B; and after a second time (times T1 to T2), the allocation of landing calls and the registration of car calls involving the emergency travel area are prohibited in car C. This will be explained in detail below.

[0106] Figure 7 This diagram illustrates the docking restriction information 91 of the second embodiment. In the docking restriction information 90 of the first embodiment, the following was recorded: from the occurrence of an earthquake with a seismic intensity of 1 magnitude or higher until TA seconds have elapsed, the number of unrestricted aircraft is limited to 1 (Aircraft A). In contrast, the docking restriction information 91 of the second embodiment is configured such that when an earthquake with a seismic intensity of 1 magnitude or higher occurs, the number of unrestricted aircraft decreases, and then gradually increases over time.

[0107] In docking restriction information 91, the unrestricted aircraft number, restricted aircraft number, and restricted floor number are shown corresponding to the elapsed time (restriction time) since the occurrence of an earthquake with an intensity of intensity above the specified value. When the elapsed time T since the occurrence of an earthquake with an intensity of intensity above the specified value is less than or equal to T1 seconds (0 ≤ elapsed time T ≤ T1), the following is recorded: 1 unrestricted aircraft number is set (in this case, aircraft A), 2 restricted aircraft numbers are set (in this case, aircraft B and C), and the restricted floor number is 1. The following is recorded: When the subsequent elapsed time T is less than or equal to T2 seconds (T1 < elapsed time T ≤ T2), 2 unrestricted aircraft numbers are set (aircraft A and B), 1 restricted aircraft number is set (aircraft C), and the restricted floor number is 1. The following is recorded: When the elapsed time T exceeds T2 seconds, all unrestricted aircraft numbers (aircraft A to C) are set, i.e., the docking restriction is lifted. Here, T1 < T2.

[0108] Alternatively, elevator system 1 can set the number of unrestricted elevators to 0 for a specified period of time following the occurrence of an earthquake of intensity above a specified value. In this case, it can be configured to increase the number of unrestricted elevators to 1, 2, and 3 as time passes.

[0109] Figure 8 This diagram illustrates the available floors when only machine C has parking restrictions. As mentioned above, when T1 < elapsed time T ≤ T2, there are 2 unrestricted machines (machines A and B), 1 restricted machine (machine C), and 1 restricted floor.

[0110] Machines A and B can respond to calls from any of the following floors: the 1st floor and floors 5 through 7. They can also register car calls from any of the following floors: the 1st floor and floors 5 through 7. In other words, machines A and B are unrestricted machines that can operate in the emergency exit area. On the other hand, machine C is prohibited from serving the 1st floor and is therefore a restricted machine that cannot operate in the emergency exit area.

[0111] The likelihood of aftershocks is high immediately following a major earthquake. Therefore, if the elapsed time since an earthquake of intensity T1 or higher is less than T1 seconds, the number of unrestricted aircraft should be limited to one to minimize the probability of passengers being trapped in the express zone. Then, as time passes and the likelihood of aftershocks decreases, the number of aircraft allowed to operate in the express zone can be gradually increased. Alternatively, the number of unrestricted aircraft can be reduced to zero for a specified period immediately following the earthquake, thus completely preventing passengers from being trapped in the express zone for the designated time.

[0112] Figure 9 This is a flowchart of the processes performed by the monitoring system 100. The processes in this flowchart are related to... Figure 6 The flowchart is the same as the one used, so the explanation is omitted.

[0113] However, in S205 of this flowchart, stop restriction information 91 is used instead of stop restriction information 90. Therefore, unlike the first embodiment, in the second embodiment, a restriction request is sent that, immediately after an earthquake of intensity above a specified value occurs, the number of elevators that can travel in the emergency zone is reduced to 1, and as time passes, the number of elevators that can travel is increased one by one (changing to 1, 2, or all). Based on this restriction request, elevator system 1 implements stop restrictions.

[0114] As explained above, the elevator car 10 controlled by the control device 20 of the elevator system 1 that receives the restriction request includes a first car 10 (C car), a second car 10 (B car), and a third car 10 (A car). The restriction request is as follows: during the first time period (0 to time T1) after the earthquake is detected by the earthquake sensor 40, the allocation of landing calls and the registration of car calls involving the emergency travel zone are prohibited in cars C and B; thereafter, during the second time period (time T1 to T2), the allocation of landing calls and the registration of car calls involving the emergency travel zone are prohibited in car C.

[0115] The probability of aftershocks is high immediately following an earthquake of intensity above a specified value, decreasing over time. By reducing the number of elevators that can operate in the emergency zone immediately after an earthquake, and then gradually increasing the number over time, a balance can be struck between ensuring passenger convenience (access to the first floor) and the risk of passengers being trapped in the emergency zone. This also reduces the number of passengers trapped in elevators during an earthquake and lowers the workload for maintenance personnel in responding to earthquakes.

[0116] [Postscript]

[0117] The above-described implementation methods are specific examples of the following notes.

[0118] (Postscript 1)

[0119] An elevator monitoring device is configured to communicate with at least one elevator system, wherein...

[0120] Each of the at least one elevator system has:

[0121] Earthquake sensor, which detects earthquakes; and

[0122] In an elevator control system, if an earthquake is detected by the seismic sensor while the elevator car is in motion, the control system will open the elevator car doors after the car has traveled to the nearest floor.

[0123] The elevator monitoring device includes:

[0124] The communication unit receives earthquake information sensed by the earthquake sensor from each of the at least one elevator system; and

[0125] If the magnitude of an earthquake detected by the earthquake sensor is above a predetermined level, the control unit generates a restriction request. This restriction request indicates that for a certain period of time after the earthquake sensor detects the earthquake, the elevator car's movement in the emergency zone, where the distance between floors where it can stop is above a predetermined distance, will be restricted.

[0126] The communication unit sends the restriction request to the elevator system equipped with an earthquake sensor that can detect earthquakes of the predetermined level or higher.

[0127] (Postscript 2)

[0128] According to the elevator monitoring device described in Appendix 1, among which,

[0129] The elevator monitoring device also includes a storage unit that stores information about the respective installation areas of the at least one elevator system.

[0130] The communication unit accesses a server that distributes earthquake information to the region to obtain the earthquake information for that region.

[0131] Based on the information of the installation area and the seismic information of the area, the control unit extracts elevator systems installed in areas where earthquakes of the predetermined magnitude or higher have occurred.

[0132] The communication unit sends the restriction request to the elevator system extracted by the control unit.

[0133] (Note 3)

[0134] According to the elevator monitoring device described in Appendix 1 or 2, among which,

[0135] The car, controlled by the elevator control device of the elevator system that receives the restriction request, includes a first car and a second car.

[0136] The restriction request is as follows: for a certain period of time after an earthquake is detected by the earthquake sensor, the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone shall be prohibited in the first car.

[0137] (Postscript 4)

[0138] According to the elevator monitoring device described in Appendix 1 or 2, among which,

[0139] The car, controlled by the elevator control device of the elevator system that receives the restriction request, includes a first car, a second car, and a third car.

[0140] The restriction request is as follows: after prohibiting the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone in the first car and the second car within a first time period from the time the earthquake is detected by the earthquake sensor, the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone in the first car within a second time period.

[0141] (Note 5)

[0142] An elevator monitoring system comprising an elevator monitoring device as described in any one of Appendices 1 to 4 and the at least one elevator system, wherein,

[0143] Each of the at least one elevator system, upon detecting an earthquake by the earthquake sensor, sends information about the earthquake detected by the earthquake sensor to the elevator monitoring device.

[0144] Upon receiving the restriction request, the elevator control device of each of the at least one elevator system controls the car to restrict the travel of the emergency lane for a certain period of time based on the restriction request.

[0145] (Note 6)

[0146] A control method for an elevator monitoring device, wherein the elevator monitoring device is configured to communicate with at least one elevator system, wherein...

[0147] Each of the at least one elevator system has:

[0148] Earthquake sensor, which detects earthquakes; and

[0149] In an elevator control system, if an earthquake is detected by the seismic sensor while the elevator car is in motion, the control system will open the elevator car doors after the car has traveled to the nearest floor.

[0150] The control method includes the following steps:

[0151] The at least one elevator system receives earthquake information sensed by the earthquake sensor.

[0152] If the magnitude of an earthquake detected by the seismic sensor is above a predetermined level, a restriction request is generated. This restriction request indicates that for a certain period of time after the earthquake is detected, the elevator car's movement in the emergency zone, where the distance between floors where it can stop is above a predetermined distance, is restricted.

[0153] The restriction request is sent to the elevator system equipped with the earthquake sensor that can detect earthquakes of the predetermined level or higher.

[0154] Embodiments of the present invention have been described, but the embodiments disclosed herein are illustrative in all respects and should not be considered as limiting. The scope of the invention is set forth in the claims and is intended to include all modifications within the meaning and scope equivalent to the claims.

Claims

1. An elevator monitoring device configured to communicate with at least one elevator system, wherein, Each of the at least one elevator system has: Earthquake sensor, which detects earthquakes; and In an elevator control system, if an earthquake is detected by the seismic sensor while the elevator car is in motion, the control system will open the elevator car doors after the car has traveled to the nearest floor. The elevator monitoring device includes: The communication unit receives earthquake information sensed by the earthquake sensor from each of the at least one elevator system; and If the magnitude of an earthquake detected by the earthquake sensor is above a predetermined level, the control unit generates a restriction request. This restriction request indicates that for a certain period of time after the earthquake sensor detects the earthquake, the elevator car's movement in the emergency zone, where the distance between floors where it can stop is above a predetermined distance, will be restricted. The communication unit sends the restriction request to the elevator system equipped with an earthquake sensor that can detect earthquakes of the predetermined level or higher.

2. The elevator monitoring device according to claim 1, wherein, The elevator monitoring device also includes a storage unit that stores information about the respective installation areas of the at least one elevator system. The communication unit accesses a server that distributes earthquake information to the region to obtain the earthquake information for that region. Based on the information of the installation area and the seismic information of the area, the control unit extracts elevator systems installed in areas where earthquakes of the predetermined magnitude or higher have occurred. The communication unit sends the restriction request to the elevator system extracted by the control unit.

3. The elevator monitoring device according to claim 1 or 2, wherein, The car, controlled by the elevator control device of the elevator system that receives the restriction request, includes a first car and a second car. The restriction request is as follows: for a certain period of time after an earthquake is detected by the earthquake sensor, the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone shall be prohibited in the first car.

4. The elevator monitoring device according to claim 1 or 2, wherein, The elevator car, controlled by the elevator control device of the elevator system that receives the restriction request, includes a first car, a second car, and a third car. The restriction request is as follows: after prohibiting the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone in the first car and the second car within a first time period from the time the earthquake is detected by the earthquake sensor, the allocation of landing call elevators and the registration of car call elevators involving the travel of the emergency zone in the first car within a second time period.

5. An elevator monitoring system comprising the elevator monitoring device of claim 1 and the at least one elevator system, wherein, Each of the at least one elevator system, upon detecting an earthquake by the earthquake sensor, sends information about the earthquake detected by the earthquake sensor to the elevator monitoring device. Upon receiving the restriction request, the elevator control device of each of the at least one elevator system controls the car to restrict the travel of the emergency lane for a certain period of time based on the restriction request.

6. A control method for an elevator monitoring device, wherein the elevator monitoring device is configured to communicate with at least one elevator system, wherein, Each of the at least one elevator system has: Earthquake sensor, which detects earthquakes; and In an elevator control system, if an earthquake is detected by the seismic sensor while the elevator car is in motion, the control system will open the elevator car doors after the car has traveled to the nearest floor. The control method includes the following steps: The at least one elevator system receives earthquake information sensed by the earthquake sensor. If the magnitude of the earthquake detected by the earthquake sensor is above a predetermined level, a restriction request is generated. This restriction request indicates that the car's travel in the emergency zone, where the distance between floors where it can stop is above a predetermined distance, is restricted for a certain period of time from the time the earthquake sensor detects the earthquake. as well as The restriction request is sent to the elevator system equipped with the earthquake sensor that can detect earthquakes of the predetermined level or higher.

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