JP6469314B1 - Elevator system - Google Patents

Abstract

An elevator system (100) comprising an elevator (20) comprising a seismic detector (220) and a monitoring center (300), wherein the elevator (20) has a height above which the seismic detector (220) exceeds an outage threshold. When the acceleration is detected, the operation is stopped, and a high acceleration detection signal and an operation stop signal are transmitted to the monitoring center (300). The monitoring center (300) receives the high acceleration detection signal and the operation stop signal from the elevator (20). When the seismic intensity of the area where the elevator (20) is installed is less than the seismic intensity threshold, a signal for causing the elevator (20) to execute an automatic recovery diagnosis operation is transmitted.

Description

  The present invention relates to an elevator system capable of automatically restoring an elevator when it is assumed that the elevator is hardly damaged even when an earthquake sensor detects high acceleration.

  The elevator is operated in earthquake control when an earthquake occurs. In seismic control operation, for example, when the acceleration of the ground surface detected by the seismic detector exceeds a low threshold value, it automatically stops after stopping at the nearest floor and automatically recovers. If exceeded, stop driving after stopping at the nearest floor. When the operation is suspended due to the seismic control operation, a special engineer is dispatched to the elevator to perform human recovery (for example, see Patent Document 1).

JP-A-2006-23044

  On the other hand, even if the earthquake detector detects high acceleration, the elevator may be hardly damaged depending on the magnitude of the earthquake and the area where the elevator is installed. However, in the earthquake control operation, even when the elevator is not damaged, many elevators may be suspended at the same time, and it takes time to restore the elevator.

  Accordingly, an object of the present invention is to enable automatic restoration of an elevator when it is assumed that the elevator is hardly damaged even when the earthquake detector detects high acceleration.

  An elevator system according to the present invention is an elevator system including an elevator including an earthquake detector that detects acceleration on the ground surface, and a monitoring center that communicates with the elevator and monitors the elevator. When the earthquake detector detects high acceleration exceeding the operation stop threshold, the operation is stopped, and a high acceleration detection signal and an operation stop signal are transmitted to the monitoring center. The monitoring center detects the high acceleration detection from the elevator. When the signal and the operation stop signal are received, if the seismic intensity of the district where the elevator is installed is less than the seismic intensity threshold, a signal for causing the elevator to perform an automatic restoration diagnosis operation is transmitted. To do.

  In the elevator system of the present invention, the monitoring center acquires earthquake information from a plurality of earthquake information providing organizations after an earthquake occurs, and at least two pieces of earthquake information among the acquired plurality of earthquake information are installed in the elevator. When the seismic intensity of the district is less than the seismic intensity threshold or the acceleration of the ground surface in the district is less than a recoverable threshold greater than the operation stop threshold, a signal for causing the elevator to perform an automatic restoration diagnosis operation is transmitted. May be.

  In the elevator system of the present invention, the monitoring center acquires earthquake information of a region where a large number of the elevators are installed from a plurality of earthquake information providing organizations after an earthquake occurs, and a seismic intensity equal to or greater than a seismic intensity threshold is observed in the region. And when no acceleration equal to or greater than the recoverable threshold value that is greater than the driving stop threshold value is observed in the area, the high acceleration sensing signal and the driving stop signal are transmitted to the monitoring center. A signal that causes all the elevators installed in the area to execute an automatic recovery diagnosis operation may be transmitted.

  The present invention can enable automatic restoration of an elevator when it is assumed that the elevator is hardly damaged even when the earthquake sensor senses high acceleration.

It is a distribution diagram showing the composition of the elevator system of an embodiment. It is a functional block diagram of the elevator system of embodiment shown in FIG. It is a figure which shows an example of a high acceleration detection elevator list | wrist, an automatic restoration diagnosis execution availability determination table, and earthquake information. It is a figure which shows an example of an automatic recovery diagnosis command transmission list | wrist. It is the first half of the flowchart which shows operation | movement of the elevator system of embodiment shown in FIG. It is the second half of the flowchart which shows operation | movement of the elevator system of embodiment shown in FIG. It is another functional block diagram of the elevator system of embodiment shown in FIG. It is a figure which shows the other example of the automatic recovery diagnosis execution judgment table classified by area, and another example of earthquake information. It is a figure which shows the other example of a high acceleration detection elevator list | wrist, the automatic recovery diagnosis execution decision | availability list according to area | region, and an automatic recovery diagnosis command transmission list | wrist. It is the first half of the flowchart which shows other operation | movement of the elevator system of embodiment shown in FIG.

<Elevator system configuration>
Hereinafter, an elevator system 100 according to an embodiment will be described with reference to the drawings. As shown in FIG. 1, the elevator system 100 includes an elevator 20 including an earthquake detector 220 that detects acceleration on the ground surface, and a monitoring center 300 that communicates with the elevator 20 and monitors the elevator 20.

  The elevator 20 is installed in the hoistway 11 of the building 10, and transmits to the communication network 30 a control panel 200 that performs drive control of the elevator 20 and operation status data of the elevator 20 that is input from the control panel 200. And a communication device 210. The control panel 200 and the communication device 210 are computers including a CPU and a memory inside. The communication device 210 receives a command signal from the information processing device 310 of the monitoring center 300 via the communication device 320 and the communication network 30 and outputs it to the control panel 200. The communication devices 210 and 320 may be devices that perform wireless communication or devices that perform wired communication. The communication network 30 may be an Internet communication network or a telephone line network. In FIG. 1, reference numeral 22 denotes a basket, reference numeral 26 denotes a door of the basket 22, reference numeral 27 denotes a floor of the basket 22, reference numeral 12 denotes a landing floor, and reference numeral 13 denotes a landing floor door.

  The monitoring center 300 includes a control panel 200 of the elevator 20, an information processing apparatus 310 that transmits and receives operation status data, and a monitoring panel 330 via communication devices 210 and 320. The information processing device 310 and the communication device 320 are computers including a CPU and a memory therein, and output operation status data input from the control panel 200 of the elevator 20 to the monitoring panel 330 and at the same time, the control panel 200 of the elevator 20. A command signal is generated and output based on the operation status data input from. The command signal output from the information processing device 310 is transmitted to the control panel 200 of the elevator 20 via the communication device 320 and the communication network 30. The monitoring panel 330 is provided with a display 331 for displaying the operation status of the elevator 20, a notification from the information processing device 310, and the like, and a switch 332 for operating the display of the display 331. The monitoring panel 330 is provided with a telephone 333 that communicates with the service center 340 via the communication network 35.

  As shown in FIG. 1, the information processing apparatus 310 is connected to a plurality of earthquake information providing organizations A, B, and C via the communication network 35. Earthquake information 410, 420, and 430 are input from A, B, and C, respectively.

<Elevator system operation>
Next, the operation of the elevator system 100 when an earthquake occurs will be described with reference to FIGS. In the following description, as shown in FIG. 3, earthquake information 410 and 420 including seismic intensity information for each district in each prefecture are input to the information processing apparatus 310 from the organization A and organization B, as well as the epicenter and magnitude. Then, it is assumed that the earthquake information 430 including the acceleration of the city or town in each prefecture is input from the organization C to the information processing apparatus 310.

  As shown in step S101 of FIG. 5, the control panel 200 monitors the acceleration of the ground surface input from the earthquake detector 220, and determines that an earthquake has occurred when the earthquake detection acceleration LL, eg, about 30 gal, is exceeded. Then, the process proceeds to step S102 in FIG. 5 and it is determined whether or not the acceleration input from the earthquake detector 220 exceeds the operation stop threshold value L. Here, the operation stop threshold L is larger than the earthquake detection acceleration LL, and may be, for example, about 80 gal. If the acceleration does not exceed the operation stop threshold L, the process proceeds to step S103 in FIG. 5, and the control panel 200 stops the operation of the elevator 20 by stopping the car 22 of the elevator 20 at the nearest floor. After 3 minutes have elapsed, the normal operation of the elevator 20 is resumed. If the acceleration exceeds the operation stop threshold L in step S102 of FIG. 5, the process proceeds to step S104 of FIG. 5, and the control panel 200 determines whether the acceleration exceeds the operation stop threshold H. Here, the operation stop threshold H is larger than the operation stop threshold L, and may be, for example, about 120 gal. If the acceleration does not exceed the operation stop threshold H, the control panel 200 jumps to step S111 in FIG. 6 to reset the earthquake detector 220 and execute an automatic restoration diagnosis operation. This will be described later.

  On the other hand, when the acceleration exceeds the operation stop threshold H, the control panel 200 determines YES in step S104 in FIG. 5 and proceeds to step S105 in FIG. 5, and operates the elevator 20 as shown in FIG. While stopping, it outputs an operation stop signal and a high acceleration sensing signal. As shown in FIG. 2, the operation stop signal and the high acceleration sensing signal output from the control panel 200 are input to the communication device 210. The communication device 210 transmits an operation stop signal and a high acceleration sensing signal to the communication network 30. The transmitted operation stop signal and high acceleration sensing signal are received by the communication device 320 of the monitoring center 300 and input to the information processing device 310 of the monitoring center 300.

  The information processing apparatus 310 receives an operation stop signal and a high acceleration sensing signal from the elevators 20 in various places. As shown in step S106 of FIG. 5, the information processing apparatus 310 generates the high acceleration sensing elevator list 500 shown in FIG. 3 based on the received signal. The high acceleration sensing elevator list 500 is a list of identification numbers and installation locations of the elevators 20 that have transmitted high acceleration sensing signals.

  Next, as illustrated in FIGS. 2 and 3, the information processing apparatus 310 generates an automatic recovery diagnosis execution determination table 510 in step S <b> 107 of FIG. 5. The information processing device 310 refers to the seismic intensity information and acceleration information for each district in each of the earthquake information 410, 420, and 430 from the organization A, organization B, and organization C in the high acceleration sensing elevator list 500, as follows. Thus, the automatic restoration diagnosis execution possibility determination table 510 is generated.

  When the seismic intensity information from the organization A in the district including the installation location of the elevator 20 that senses high acceleration is less than the seismic intensity threshold, the information processing device 310 displays the organization A of the elevator 20 in the high acceleration sensing elevator list 500. Enter “OK” in the earthquake information field. On the other hand, when the seismic intensity information from the organization A in the district including the installation location of the elevator 20 that senses high acceleration is equal to or greater than the seismic intensity threshold, the information processing device 310 displays the earthquake information of the organization A of the elevator 20 in the column of earthquake information. Enter “NG”. The same applies to the earthquake information from organization B. Here, the seismic intensity threshold is a seismic intensity at which the elevator 20 is not damaged. For example, the seismic intensity may be 5 or the like. In this case, the information processing apparatus 310 displays “in the earthquake information column of the organizations A and B in the automatic recovery diagnosis execution determination table 510 in the elevator 20 with the identification numbers S1001 and S1002 installed in Saitama Prefecture with a seismic intensity of 3 or 4. “OK” is input, and “NG” is input in the column of the earthquake information of the organizations A and B in the elevator 20 having the identification number C1001 installed in Chiba Prefecture including the seismic intensity 5.

  If the acceleration information from the organization C in the district including the installation location of the elevator 20 that senses high acceleration is less than the recoverable threshold, the information processing device 310 stores the information in the automatic recovery diagnosis execution determination table 510. Enter “OK” in the field of earthquake information of organization C of the elevator 20. On the other hand, when the acceleration information from the organization C in the district including the installation location of the elevator 20 that senses high acceleration is equal to or greater than the recoverable threshold, the information processing apparatus 310 displays the earthquake information column of the organization C of the elevator 20. Enter “NG” in. Here, the recoverable threshold is an acceleration at which the elevator 20 that is larger than the operation stop threshold H (120 gal) is not damaged, and may be about 250 gal, for example. In this case, the information processing apparatus 310 inputs “OK” in the column of the earthquake information of the organization C of the automatic restoration diagnosis execution determination table 510 in the elevator 20 installed in Saitama Prefecture where the acceleration is less than 250 gal, and the acceleration is 250 gal. In the elevator 20 installed in Chiba Prefecture as described above, “NG” is entered in the column of the earthquake information of organization C.

  Then, in step S108 in FIG. 5, the information processing apparatus 310 selects the elevator 20 in which “OK” is input in the column of at least two earthquake information in the automatic recovery diagnosis execution determination table 510, and An automatic recovery diagnosis command transmission list 520 as shown in FIG. For example, in the elevator 20 with identification numbers S1001 and S1002 installed in Saitama Prefecture, there are three “OK” s in the column of earthquake information, so the automatic recovery diagnosis command transmission list 520 transmits the automatic recovery diagnosis command. As such, “call” is entered. In addition, since there is no “OK” in the earthquake information column in the elevator 20 with the identification number C1001 installed in Chiba Prefecture, in the automatic recovery diagnosis command transmission list 520, the automatic recovery diagnosis command should not be transmitted. “NG” is input.

  Then, the information processing apparatus 310 outputs an automatic recovery diagnosis command as shown in step S109 of FIG. 5 and FIG. 2 based on the automatic recovery diagnosis command transmission list 520.

  As described above, the information processing apparatus 310 has at least two pieces of earthquake information 410, 420, and 430 acquired from the organizations A, B, and C, and the seismic intensity of the district where the elevator 20 is installed is the seismic intensity. When the acceleration is less than the threshold value or the ground surface acceleration in the area is less than the recoverable threshold value, a signal for causing the elevator 20 to execute the automatic recovery diagnosis operation is output.

  The output of the information processing device 310 is transmitted from the communication device 320 to the communication network 30 as shown in FIG. 2, and is received by the communication device 210 as shown in step S110 of FIG. 5 and FIG. The communication device 210 outputs the received automatic restoration diagnosis command to the control panel 200.

  When the automatic recovery diagnosis command is input from the communication device 210, the control panel 200 resets the earthquake detector 220 as shown in step S111 of FIG. 6 and FIG. 2, and then, as shown in step S112 of FIG. After confirming the presence or absence of passengers in the basket 22, an automatic recovery diagnosis operation is performed as shown in step S113 of FIG. The resetting of the earthquake detector 220 in step S111 in FIG. 6 may be executed after confirming the presence or absence of passengers in the cage 22 in step S112 in FIG.

  As shown in step S112 of FIG. 6, the control panel 200 is configured so that, for example, passengers can enter the interior of the car 22 of the elevator 20 from outputs of the weight sensor of the car 22, the camera in the car 22, the human sensor in the car 22 and the like. Check if it is. If there are passengers in the basket 22, the control panel 200 skips the automatic recovery diagnosis operation, proceeds to step S115 in FIG. 6, and outputs a determination result of “unrecoverable” in step S115 in FIG. Here, for the sake of safety, passengers are checked, but the door open button is also lit when the passenger is inside the basket 22 and can be opened by pressing the door open button.

In step S116 of FIG. 6, the control panel 200 transmits a determination result “unrecoverable” to the monitoring center 300 via the communication device 210, and then stops the elevator 20 from operation. As shown in step S <b> 117 of FIG. 6, the communication device 320 of the monitoring center 300 receives this determination result and outputs it to the information processing device 310. The information processing apparatus 310 displays this determination result on the display 331. Based on this display, the supervisor 334 determines that “restoration is impossible” in the restoration confirmation in step S118 of FIG. 6 and, as shown in step S119 of FIG. Instruct the dispatch.

  On the other hand, when the control panel 200 determines in step S111 in FIG. 6 that there is no passenger in the basket 22, the control panel 200 proceeds to step S112 in FIG. 6 and performs an automatic recovery diagnosis operation. Diagnosis contents of the automatic restoration diagnosis operation include, for example, confirmation of the presence or absence of torque abnormality of the hoisting motor during traveling, confirmation of abnormal sound during traveling, and the like. The automatic restoration diagnosis operation is, for example, the following operation. First, the control panel 200 performs a low-speed running diagnosis that causes the car 22 to run at a low speed of, for example, about 1 m / min. If there is no abnormality in the slow speed running diagnosis, the floor stop running diagnosis that stops at each floor at a low speed running faster than the slow speed is performed. If there is no abnormality in each floor stop traveling diagnosis, the control panel 200 performs a constant speed traveling diagnosis for traveling at the rated speed. When there is no abnormality in the constant speed running diagnosis, the control panel 200 performs door opening / closing diagnosis for opening and closing the doors 13 and 26 on each floor. If there is no abnormality in the door opening / closing diagnosis, the control panel 200 terminates the automatic recovery diagnosis operation with no abnormality. Then, the control panel 200 proceeds to step S115 in FIG. 6, and outputs a determination of “successful recovery” in step S115 in FIG.

  In step S <b> 116 of FIG. 6, the control panel 200 transmits a determination result of “successful recovery” to the monitoring center 300 via the communication device 210, and then resumes normal operation of the elevator 20. As shown in step S <b> 117 of FIG. 6, the communication device 320 of the monitoring center 300 receives this determination result and outputs it to the information processing device 310. The information processing apparatus 310 displays this determination result on the display 331. When the monitor 334 confirms this display in step S118 of FIG. 6 and determines that “restoration is successful”, the automatic restoration of the elevator 20 is finished.

  If an abnormality occurs during the automatic recovery diagnosis operation, the process proceeds to step S120 in FIG. 6 and the control panel 200 stops the automatic recovery diagnosis operation. Then, the process proceeds to step S115 in FIG. 6, and a determination result “unrecoverable” is output. Then, in step S116 of FIG. 6, the control panel 200 outputs a determination result “unrecoverable” to the monitoring center 300 via the communication device 210, and then stops the elevator 20 from operation.

  As described above, the elevator system 100 according to the present embodiment enables automatic restoration of the elevator 20 when it is assumed that the elevator 20 is hardly damaged even when the earthquake detector 220 detects high acceleration. be able to. Thereby, many elevators 20 can be restored in a short time.

  In the above description, the elevator 20 having “OK” input in at least two earthquake information columns in the automatic restoration diagnosis execution determination table 510 is selected, and automatic restoration diagnosis command transmission as shown in FIG. 4 is performed. Described as generating a list 520. However, the present invention is not limited to this, and the seismic intensity threshold and the recoverable threshold are set to seismic intensity 4 and 200 gal which are smaller than the seismic intensity 5 and 250 gal described above, and at least one earthquake information in the automatic restoration diagnosis execution determination table 510 The elevator 20 in which “OK” is input in the column of “OK” may be selected to generate an automatic recovery diagnosis command transmission list 520 as shown in FIG.

<Other operations of the elevator system>
Next, another operation of the elevator system 100 of the present embodiment will be described with reference to FIGS. The same parts as those described above with reference to FIGS. 1 to 6 are denoted by the same reference numerals, and description thereof is omitted.

  This operation is summarized as follows. First, the information processing apparatus 310 of the monitoring center 300 acquires earthquake information of a region where a large number of elevators 20 are installed from a plurality of earthquake information providing organizations after the occurrence of an earthquake. If no seismic intensity greater than the seismic intensity threshold is observed in the area and no acceleration greater than the recoverable threshold is observed in the area, a high acceleration detection signal and an operation stop signal are transmitted to the monitoring center 300. A signal is generated to cause all elevators 20 installed in the area of the elevators 20 to execute the automatic restoration diagnosis operation.

  When an earthquake occurs, the information processing apparatus 310 generates a high acceleration sensing elevator list 500, as shown in step S106 of FIG. Further, when an earthquake occurs, earthquake information 410, 420, and 430 are input from the organizations A, B, and C to the information processing apparatus 310, as shown in FIG. In step S201 in FIG. 10, the information processing apparatus 310 generates a regional automatic recovery diagnosis execution determination table 515 as shown in FIG. The information processing apparatus 310 determines from the seismic intensity information of each area of the organization A whether there is an area in which a seismic intensity exceeding the seismic intensity 5 that is the seismic intensity threshold is observed in a specific area, for example, Saitama Prefecture. As shown in FIG. 8, when based on the seismic intensity information of organization A, no seismic intensity exceeding seismic intensity 5 which is the seismic intensity threshold has been observed in Saitama prefecture. Enter “OK” in the field of earthquake information of organization A. Similarly, if there is no area where seismic intensity greater than 5 is observed in Saitama prefecture from the seismic intensity information of each area of organization B, the information processing apparatus 310 displays “OK” in the column of earthquake information of organization B in Saitama prefecture. ". On the contrary, when seismic intensity 5 is observed even in one area as in Chiba prefecture, “NG” is entered in the column of earthquake information of organization A and organization B in Chiba prefecture.

  Further, the information processing apparatus 310 determines from the acceleration information of the organization C whether or not an acceleration exceeding 250 gal which is a recoverable threshold is observed in Saitama Prefecture. As shown in FIG. 8, when there is no observation point in Saitama that exceeds the recoverable threshold of 250 gal, the earthquake information column of the organization C of Saitama in the region-specific automatic recovery diagnosis execution determination table 515 Enter “OK” in. On the contrary, when acceleration exceeding 250 gal is observed even in one district as in Chiba prefecture, “NG” is entered in the column of earthquake information of organization C in Chiba prefecture.

  As shown in step S202 of FIG. 7 and FIG. 10, the information processing apparatus 310 creates the automatic recovery diagnosis execution possibility list for each region 530 shown in FIG. 9 based on the automatic recovery diagnosis execution possibility determination table for each area 515 of FIG. Generate. The automatic recovery diagnosis execution possibility list 530 for each region indicates that the automatic recovery diagnosis can be executed for the prefectures in which two or more earthquake information is “OK” in the automatic recovery diagnosis execution determination table 515 for each region in FIG. A prefecture where only one earthquake information is “OK” is set to be unable to execute automatic restoration diagnosis. That is, it is a list of whether or not automatic restoration diagnosis can be performed for each prefecture.

  Next, as shown in step S108 of FIGS. 9 and 10, the information processing apparatus 310 generates an automatic recovery diagnosis command transmission list 540 by combining the automatic recovery diagnosis execution possibility list 530 for each region and the high acceleration sensing elevator list 500. To do. This list is sent to all elevators 20 in the prefectures that can be executed in the regional automatic recovery diagnosis execution availability list 530, and is not executed in the regional automatic recovery diagnosis execution availability list 530. The automatic restoration diagnosis command is not transmitted to all elevators 20 in the prefecture.

  In this way, the information processing device 310 is configured to detect a high acceleration detection signal and driving when no seismic intensity greater than the seismic intensity threshold is observed in a specific area and no acceleration greater than the recoverable threshold is observed in the area. Among the elevators 20 that have transmitted the stop signal to the monitoring center 300, a signal is generated that causes all the elevators 20 installed in the area to execute the automatic recovery diagnosis operation.

  The output of the information processing device 310 is transmitted from the communication device 320 to the communication network 30 as shown in step S109 of FIGS. 7 and 10, and is output by the communication device 210 as shown in steps S109 and FIG. 7 of FIGS. Received. The communication device 210 outputs the received automatic restoration diagnosis command to the control panel 200.

  Similar to the operation described above with reference to FIGS. 1 to 6, when the control panel 200 receives the automatic recovery diagnosis command from the communication device 210, the control panel 200 performs the automatic recovery diagnosis operation as shown in step S <b> 113 of FIG. 6. Run.

  As described above, this operation determines not only for each elevator 20 but also whether to perform an automatic restoration diagnosis operation for a specific area such as a prefecture, so a large number of elevators 20 are installed as in Tokyo. It is possible to perform processing in a certain area in a short time, and it is possible to restore a large number of elevators 20 assumed to be hardly damaged in the event of an earthquake in a short time.

  In the above embodiment, each prefecture has been described as one specific area. However, the present invention is not limited to this, and for example, automatic recovery diagnosis operation for each area with Tokyo, such as Chiyoda Ward and Shinjuku Ward as one specific area. It may be determined at once whether or not to perform.

10 building, 11 hoistway, 12, 27 floor, 13, 26 door, 20 elevator, 22 basket, 30, 35 communication network, 100 elevator system, 200 control panel, 210 communication device, 220 earthquake detector, 300 monitoring center, 310 Information processing device, 320 Communication device, 330 Monitor panel, 331 Display, 332 switch, 333 telephone, 334 Monitor, 340 Service center, 350 Engineer, 410-430 Earthquake information, 500 High acceleration sensing elevator list, 510 Automatic recovery Diagnosis execution possibility determination table, 515 Regional automatic recovery diagnosis execution availability determination table, 520, 540 Automatic recovery diagnosis command transmission list, 530 Area automatic recovery diagnosis availability list.

Claims (3)

An elevator equipped with an earthquake detector that senses acceleration on the ground surface;
An elevator system comprising a monitoring center that communicates with the elevator and monitors the elevator,
The elevator stops driving when the earthquake detector detects a high acceleration exceeding an operation stop threshold, and transmits a high acceleration detection signal and an operation stop signal to the monitoring center,
When the seismic intensity of the district where the elevator is installed is less than a seismic intensity threshold when the monitoring center receives the high acceleration sensing signal and the operation stop signal from the elevator, the elevator performs automatic restoration diagnosis operation. Sending a signal to execute,
Elevator system characterized by The elevator system according to claim 1,
The monitoring center is
Obtain earthquake information from multiple earthquake information providers after the earthquake
At least two of the acquired earthquake information indicate that the seismic intensity of the area where the elevator is installed is less than the seismic intensity threshold, or the acceleration of the ground surface in the area is greater than the operation stop threshold. Sending a signal to cause the elevator to perform an automatic restoration diagnosis operation when less than a recoverable threshold;
Elevator system characterized by The elevator system according to claim 1 or 2,
The monitoring center is
After the earthquake occurs, obtain earthquake information of the area where many elevators are installed from multiple earthquake information providing organizations,
When the seismic intensity above the seismic intensity threshold is not observed in the area, and the acceleration above the recoverable threshold greater than the operation stop threshold is not observed in the area,
Transmitting a signal for executing an automatic restoration diagnosis operation to all the elevators installed in the area among the elevators that transmitted the high acceleration sensing signal and the operation stop signal to the monitoring center;
Elevator system characterized by

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