WO2019106707A1

WO2019106707A1 - Elevator system

Info

Publication number: WO2019106707A1
Application number: PCT/JP2017/042538
Authority: WO
Inventors: 西山　秀樹
Original assignee: 三菱電機ビルテクノサービス株式会社
Priority date: 2017-11-28
Filing date: 2017-11-28
Publication date: 2019-06-06
Also published as: JPWO2019106707A1; CN111356646A; JP6469314B1; KR20200074203A; CN111356646B; KR102348615B1

Abstract

This elevator system (100) is provided with an elevator (20) having a seismic sensor (220), and a monitoring center (300). The elevator (20) pauses operation when the seismic sensor (220) has detected a high acceleration that exceeds an operation pause threshold value, and transmits a high acceleration detection signal and an operation pause signal to the monitoring center (300). Upon receiving a high acceleration detection signal and an operation pause signal from the elevator (20), if the seismic intensity in the region where the elevator (20) is installed is less than a seismic intensity threshold value, the monitoring center (300) transmits a signal for the elevator (20) to perform an automatic recovery diagnostic operation.

Description

Elevator system

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

The elevator performs seismic control operation when an earthquake occurs. In the case of seismic control operation, for example, if the acceleration on the ground surface detected by the earthquake sensor exceeds a certain low threshold, it will stop at the nearest floor and then perform automatic recovery diagnosis and automatically restore it, and the high threshold with acceleration If it exceeds, it may stop driving after stopping at the nearest floor. When operation is suspended due to seismic control operation, a specialized engineer is dispatched to the elevator to perform human recovery (see, for example, Patent Document 1).

JP, 2016-23044, A

On the other hand, even if the seismic sensor detects high acceleration, the elevator may be hardly damaged depending on the size of the earthquake and the area installed in the elevator. However, in the case of seismic control operation, many elevators may be simultaneously shut down even when the elevators are not damaged, and there is a problem that it takes time to restore the elevators.

Therefore, the present invention aims to enable the automatic recovery of the elevator when it is assumed that the elevator is hardly damaged even when the earthquake sensor detects high acceleration.

An elevator system according to the present invention is an elevator system comprising: an elevator equipped with a seismic sensor that senses an acceleration on the ground surface; and a monitoring center that communicates with the elevator to monitor the elevator. When the seismic sensor detects a high acceleration exceeding the shutdown threshold, the operation is stopped and a high acceleration sensing signal and a shutdown signal are transmitted to the monitoring center, and the monitoring center detects the high acceleration from the elevator Sending a signal for causing the elevator to execute an automatic recovery diagnosis operation when the seismic intensity of the area where the elevator is installed is less than the seismic intensity threshold when the signal and the operation stop signal are received. Do.

In the elevator system according to 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 of the acquired earthquake information are installed in the elevator. Send a signal to cause the elevator to perform an automatic recovery diagnosis operation when the seismic intensity of the area where the area is located is less than the seismic intensity threshold or the acceleration on the surface of the area is less than the restorable threshold greater than the shutdown threshold. May be

In the elevator system of the present invention, the monitoring center acquires earthquake information of a region where a large number of elevators are installed from a plurality of earthquake information providing organizations after an earthquake occurs, and a seismic intensity above the seismic intensity threshold is observed in the region If the acceleration higher than the restable threshold is not observed in the area, and if the acceleration higher than the restable threshold is not observed in the area, the elevator which has transmitted the high acceleration sensing signal and the rest signal to the monitoring center Signals may be issued to cause all the elevators installed in the area to perform an automatic recovery diagnosis operation.

The present invention may allow for the automatic recovery of the elevator if it is assumed that the elevator is hardly damaged even if the seismic sensor senses high acceleration.

It is a systematic diagram showing composition of an 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 diagnostic executability determination table, and earthquake information. It is a figure which shows an example of an automatic recovery diagnosis instruction | command transmission list. It is the first half of the flowchart which shows operation of the elevator system of an embodiment shown in FIG. It is the latter 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 automatic recovery diagnosis execution possibility determination table classified by area, and the other example of earthquake information. It is a figure which shows the high acceleration detection elevator list | wrist, the automatic recovery diagnostic executability list according to area, and another example of the automatic recovery diagnostic command transmission list. It is the first half of the flowchart which shows other operation of the elevator system of an embodiment shown in FIG.

<Configuration of elevator system>
Hereinafter, the elevator system 100 of the embodiment will be described with reference to the drawings. As shown in FIG. 1, the elevator system 100 includes an elevator 20 equipped with a seismic sensor 220 that senses the acceleration on the ground surface, and a monitoring center 300 that communicates with the elevator 20 to monitor the elevator 20.

The elevator 20 is installed in the hoistway 11 of the building 10 and transmits the operation status data of the elevator 20 input from the control panel 200 for controlling the drive of the elevator 20 and the control panel 200 to the communication network 30. 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 the command signal 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 network. In FIG. 1, reference numeral 22 denotes a cage, 26 denotes a door of the

cage

22, 27 denotes a floor of the

cage

22, 12 denotes a floor of the landing floor, and 13 denotes a door of the landing floor.

The monitoring center 300 includes an information processing apparatus 310 and a monitoring board 330 that transmit and receive operation status data to and from the control board 200 of the elevator 20 via the

communication devices

210 and 320. The information processing device 310 and the communication device 320 are computers including a CPU and a memory inside, and output operation status data input from the control panel 200 of the elevator 20 to the monitoring panel 330 and the control panel 200 of the elevator 20. And generates and outputs a command signal 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 board 330 is provided with a display 331 on which the operation status of the elevator 20, a notification from the information processing apparatus 310, and the like are displayed, and a switch 332 for operating the display of the display 331. Further, the monitoring board 330 is provided with a telephone 333 for communicating with the service center 340 via the communication network 35.

In addition, as shown in FIG. 1, the information processing apparatus 310 is connected to multiple organizations A, B, and C that are earthquake information providing organizations via the communication network 35, and when there is an earthquake, the information processing apparatus 310

Earthquake information

410, 420 and 430 are input from A, B and C, respectively.

<Operation of elevator system>
Next, the operation of the elevator system 100 when an earthquake occurs will be described with reference to FIGS. 2 to 6. In the following description, as shown in FIG. 3, from the organization A and the organization B,

earthquake information

410 and 420 including seismic intensity information for each district of each prefecture is input to the information processing apparatus 310 together with the epicenter and the earthquake size. The organization C describes that the earthquake information 430 including the acceleration of the city or town of each prefecture is input 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 sensor 220, and determines that an earthquake has occurred when the earthquake sensing acceleration LL, for example, about 30 gal, is exceeded. Then, the process proceeds to step S102 in FIG. 5, and it is determined whether the acceleration input from the earthquake sensor 220 exceeds the operation stop threshold L. Here, the shutdown threshold L may be larger than the earthquake sensing acceleration LL, 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 cage 22 of the elevator 20 at the nearest floor and stops the operation. After 3 minutes, the normal operation of the elevator 20 is resumed. If the acceleration exceeds the operation stop threshold L in step S102 in FIG. 5, the process proceeds to step S104 in FIG. 5, and the control panel 200 determines whether the acceleration exceeds the operation stop threshold H. Here, the operation stop threshold H may be larger than the operation stop threshold L, for example, about 120 gal. If the acceleration does not exceed the shutdown threshold H, the control board 200 jumps to step S111 in FIG. 6 to reset the earthquake sensor 220 and execute the automatic recovery diagnosis operation. This will be explained later.

On the other hand, if the acceleration exceeds the operation suspension threshold H, the control panel 200 determines YES in step S104 of FIG. 5 and proceeds to step S105 of FIG. 5 and operates the elevator 20 as shown in FIG. At the same time as 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 sends the operation stop signal and the high acceleration sensing signal to the communication network 30. The transmitted operation stop signal and the 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 operation stop signal and the high acceleration sensing signal are input to the information processing apparatus 310 from the elevators 20 in various places. As shown in step S106 of FIG. 5, the information processing device 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 issued the high acceleration sensing signal.

Next, as shown in FIGS. 2 and 3, the information processing apparatus 310 generates an automatic recovery diagnosis executability determination table 510 in step S107 of FIG. The information processing apparatus 310 refers to the

earthquake information

410, 420, 430 from the organization A, the organization B, and the organization C in the high acceleration sensing elevator list 500 and refers to the seismic intensity information for each district in each prefecture and the acceleration information as follows. As described above, the automatic recovery diagnosis executability determination table 510 is generated.

If the seismic intensity information from the organization A of the area including the installation location of the elevator 20 that has sensed high acceleration is less than the seismic intensity threshold, the information processing device 310 selects the organization A of that elevator 20 in the high acceleration sensing elevator list 500. Enter "OK" in the Earthquake Information section of. Conversely, if the seismic intensity information from the organization A of the area including the installation location of the elevator 20 that has sensed high acceleration is greater than the seismic intensity threshold, the information processing apparatus 310 displays the earthquake information column of the organizational A of the elevator 20. Enter "NG". The same applies to earthquake information from organization B. Here, the seismic intensity threshold is an seismic intensity at which the elevator 20 is not damaged. For example, the seismic intensity 5 may be used. In this case, in the elevator 20 of the identification number S1001 and S1002 installed in Saitama Prefecture with a seismic intensity of 3 or 4, the information processing apparatus 310 has the column of earthquake information of organizations A and B of automatic recovery diagnosis executability determination table 510 In the elevator 20 of the identification number C1001 installed in Chiba prefecture including the seismic intensity 5, “OK” is input, and “NG” is input in the column of earthquake information of the organizations A and B.

If the acceleration information from the organization C in the area including the installation location of the elevator 20 that has sensed high acceleration is less than the recoverable threshold, the information processing device 310 determines that in the automatic recovery diagnosis executability determination table 510 Enter "OK" in the column of earthquake information of the organization C of the elevator 20. On the contrary, when the acceleration information from the organization C of the area including the installation location of the elevator 20 which has detected the high acceleration is equal to or more than the recoverable threshold, the information processing apparatus 310 displays the column of earthquake information of the organization C of the elevator 20. Enter "NG" in Here, the restorable threshold is an acceleration at which the elevator 20 larger than the shutdown threshold H (120 gal) is not damaged, and may be, for example, about 250 gal. In this case, the information processing apparatus 310 inputs “OK” to the column of earthquake information of the organization C in the automatic recovery diagnosis executability determination table 510 in the elevator 20 installed in Saitama Prefecture whose acceleration is less than 250 gal, and the acceleration is 250 gal. In the above-mentioned elevator 20 installed in Chiba Prefecture, "NG" is input in the column of earthquake information of organization C.

Then, the information processing apparatus 310 selects the elevator 20 for which “OK” is input in the column of at least two earthquake information in the automatic recovery diagnosis executability determination table 510 in step S108 of FIG. The automatic recovery diagnosis command transmission list 520 as shown in FIG. 4 is generated. For example, in the elevator 20 with identification numbers S1001 and S1002 installed in Saitama Prefecture, since there are three "OK" in the column of earthquake information, the automatic recovery diagnosis command transmission list 520 transmits an automatic recovery diagnosis command "Outgoing" has been entered. Also, since there is no "OK" in the column of earthquake information in elevator 20 of identification number C1001 installed in Chiba Prefecture, automatic recovery diagnosis command transmission list 520 does not transmit automatic recovery diagnosis commands. "NG" has been input.

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

As described above, in the information processing apparatus 310, at least two pieces of earthquake information among the plurality of pieces of

earthquake information

410, 420, and 430 acquired from the organizations A, B, and C correspond to the seismic intensity of the area where the elevator 20 is installed. If it is less than the threshold or the acceleration on the ground surface in the area is less than the recoverable threshold, a signal to cause 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 recovery diagnosis command to the control board 200.

The control panel 200 resets the seismic sensor 220 as shown in step S111 of FIG. 6 and FIG. 2 when the automatic recovery diagnosis command is input from the communication device 210, and then as shown in step S112 of FIG. After confirming the presence or absence of the passenger in the car 22, as shown in step S113 of FIG. 6, the automatic recovery diagnosis operation is performed. In addition, the reset of the seismic sensor 220 of FIG.6 S111 may be performed, after confirming the presence or absence of the passenger of the cage 22 of FIG.6 S112 and determining that there are no passengers in the cage 22.

As shown in step S112 in FIG. 6, the control panel 200 uses, for example, the weight sensor of the car 22, the camera in the car 22, the human sensor in the car 22, etc. Check if it is When there is a passenger in the car 22, the control panel 200 skips the automatic recovery diagnosis operation, proceeds to step S115 of FIG. 6, and outputs the determination result of “unrecoverable” in step S115 of FIG. Here, to make sure, the passengers are confirmed, but even when there are passengers inside the cage 22, the door open button is on, and the door can be opened by pressing the door open button.

Then, in step S116 of FIG. 6, after the control panel 200 transmits the determination result of “not recoverable” to the monitoring center 300 via the communication device 210, the operation of the elevator 20 is suspended. As shown in step S117 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 the determination result on the display 331. Based on this display, the supervisor 334 determines that "restoration is not possible" in the restoration confirmation of step S118 of FIG. 6, and as shown in step S119 of FIG. Direct the dispatch.

On the other hand, if it is determined in step S111 in FIG. 6 that the control panel 200 has no passengers in the car 22, the control panel 200 proceeds to step S112 in FIG. 6 and performs an automatic recovery diagnosis operation. The diagnostic contents of the automatic recovery diagnosis operation are, for example, confirmation of presence / absence of torque abnormality of the hoist motor during traveling, confirmation of abnormal sound during traveling, and the like. The automatic recovery diagnosis operation is, for example, the following operation. First, the control panel 200 performs a low speed traveling diagnosis in which the basket 22 is caused to travel at a low speed of, for example, about 1 m / min. If there is no abnormality in the low-speed running diagnosis, each floor stop running diagnosis is performed in which each floor is stopped at low speed running faster than the low speed. If there is no abnormality in each floor stop traveling diagnosis, the control board 200 performs constant speed traveling diagnosis traveling at the rated speed. When there is no abnormality in the constant speed traveling diagnosis, the control panel 200 performs door open / close diagnosis for opening and closing the

doors

13 and 26 on each floor. If there is no abnormality in the door open / close diagnosis, the control panel 200 ends the automatic recovery diagnosis operation as no abnormality. Then, the control panel 200 proceeds to step S115 of FIG. 6, and outputs the determination of “recovery success” in step S115 of FIG.

Then, in step S116 of FIG. 6, the control panel 200 transmits the determination result of “restoration success” to the monitoring center 300 via the communication device 210, and then resumes the normal operation of the elevator 20. As shown in step S117 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 the determination result on the display 331. The supervisor 334 confirms this display in step S118 of FIG. 6, and when it is determined that "restoration is successful", the automatic restoration of the elevator 20 ends.

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

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

In the above description, the elevator 20 for which “OK” is input in the column of at least two earthquake information in the automatic recovery diagnosis executability determination table 510 is selected, and the automatic recovery diagnosis command transmission as shown in FIG. 4 is issued. It has been described as generating the list 520. However, the present invention is not limited to this, and the seismic intensity threshold and recoverable threshold value are set to seismic intensity 4 and 200 gal which are smaller than seismic intensity 5 and 250 gal described above, and at least one earthquake information in automatic recovery diagnosis executability determination table 510 The elevator 20 for which “OK” is input in the field of may be selected, and the automatic recovery diagnosis command transmission list 520 as shown in FIG. 4 may be generated.

<Other Operation of Elevator System>
Next, another operation of the elevator system 100 according to the present embodiment will be described with reference to FIGS. 7 to 11. The same parts as those described above with reference to FIG. 1 to FIG.

This operation is summarized as follows. First, the information processing apparatus 310 of the monitoring center 300 acquires earthquake information of an area where a large number of elevators 20 are installed from a plurality of earthquake information provision organizations after an earthquake occurs. Then, when no seismic intensity above the seismic intensity threshold is observed in the area and no acceleration above the recoverable threshold is observed in the area, the high acceleration sensing signal and the operation stop signal are sent to the monitoring center 300. Of the elevators 20, a signal is generated that causes all of the elevators 20 installed in the area to perform an automatic recovery diagnosis operation.

When an earthquake occurs, the information processing device 310 generates a high acceleration sensing elevator list 500, as shown in step S106 of FIG. In addition, when an earthquake occurs,

earthquake information

410, 420, and 430 are input to the information processing apparatus 310 from organizations A, B, and C, respectively, as shown in FIG. The information processing apparatus 310 generates an area-by-area automatic recovery diagnosis executability determination table 515 as shown in FIG. 8 in step S201 of FIG. The information processing apparatus 310 determines, based on the seismic intensity information of each area of the organization A, whether or not there is a specific area, for example, a district in which a seismic intensity exceeding the seismic intensity threshold 5 which is the seismic intensity threshold is observed in Saitama Prefecture. As shown in FIG. 8, when based on the seismic intensity information of the organization A, no seismic intensity exceeding the seismic intensity threshold 5, which is the seismic intensity threshold, is observed in Saitama Prefecture. Enter "OK" in the column of Earthquake Information in Organization A of Similarly, if there is no area in the prefecture where a seismic intensity exceeding 5 is observed in Saitama Prefecture from the seismic intensity information of each area of the organization B, the information processing apparatus 310 displays “OK in the column of seismic information of the organization B in Saitama prefecture. Enter ". Conversely, if the seismic intensity 5 is observed even in one area, as in Chiba Prefecture, enter “NG” in the column of earthquake information of the organization A and the organization B of 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 value is observed in Saitama Prefecture. Then, as shown in FIG. 8, when there is no observation point in Saitama Prefecture that exceeds the recoverable threshold 250 gal, the column of earthquake information of the organization C of Saitama Prefecture in the area-by-area automatic restoration diagnosis execution determination table 515 Enter "OK" in Conversely, if an acceleration exceeding 250 gal is observed even in one area, as in Chiba Prefecture, enter “NG” in the column of earthquake information of organization C in Chiba Prefecture.

As shown in step S202 in FIG. 7 and FIG. 10, the information processing apparatus 310 displays the regional automatic recovery diagnosis executability list 530 shown in FIG. 9 based on the regional automatic recovery diagnosis executability determination table 515. Generate In the regional automatic recovery diagnosis executability list 530, in the regional automatic recovery diagnosis executability determination table 515, the prefectures for which two or more earthquake information are "OK" are regarded as the automatic recovery diagnostic execution possible. The prefecture where only one earthquake information is not "OK" made automatic restoration diagnosis impossible. That is, it is a list of automatic recovery diagnosis execution availability according to prefectures that are regions.

Next, as shown in step S108 of FIG. 9 and FIG. 10, the information processing apparatus 310 generates an automatic recovery diagnosis command transmission list 540 by combining the regional automatic recovery diagnosis executability list 530 and the high acceleration sensing elevator list 500. Do. This list sends an automatic recovery diagnosis command to all the elevators 20 of the prefectures that are determined to be executable in the regional automatic recovery diagnosis executability list 530, and is not executable in the regional automatic recovery diagnosis executability list 530. The automatic recovery diagnosis command is not transmitted to all the elevators 20 in the prefectures.

Thus, in the information processing apparatus 310, when no seismic intensity above the seismic intensity threshold is observed in a specific area, and no acceleration above the recoverable threshold is observed in that area, the high acceleration sensing signal and the driving are detected. Of the elevators 20 that have sent the suspension signal to the monitoring center 300, a signal is generated that causes all the elevators 20 installed in that area to execute the automatic recovery diagnosis operation.

The output of the information processing apparatus 310 is transmitted from the communication apparatus 320 to the communication network 30 as shown in step S109 of FIG. 7 and FIG. 10, and the output of the information processing apparatus 310 is performed by the communication apparatus 210 as shown in FIG. It is received. The communication device 210 outputs the received automatic recovery diagnosis command to the control board 200.

Similar to the operation described above with reference to FIGS. 1 to 6, when the automatic recovery diagnosis command is input from the communication device 210, the control panel 200 performs the automatic recovery diagnosis operation as shown in step S113 of FIG. Run.

As described above, since this operation collectively determines whether or not to perform the automatic recovery diagnosis operation for each specific area such as prefectures, not for each elevator 20, a large number of elevators 20 are installed as in Tokyo. It is possible to perform processing in a short time in the area where it is located, and restore in a short time a large number of elevators 20 which are assumed to be hardly damaged in the event of an earthquake.

In the above embodiments, each prefecture is described as one specific area, but the present invention is not limited thereto. For example, automatic recovery diagnosis operation is classified by area with areas such as Chiyoda-ku and Shinjuku-ku in Tokyo as one specific area. It may be determined at once whether to

Reference Signs List 10 building, 11 shaft, 12, 27 floor, 13, 26 door, 20 elevator, 22 baskets, 30, 35 communication network, 100 elevator system, 200 control panel, 210 communication device, 220 earthquake detector, 300 monitoring center, 310 information processing apparatus, 320 communication apparatus, 330 monitoring board, 331 display, 332 switch, 333 telephone, 334 supervisor, 340 service center, 350 technician, 410-430 earthquake information, 500 high acceleration sensing elevator list, 510 automatic recovery Diagnosis executability judgment table, 515 area-specific automatic recovery diagnosis executability judgment table, 520, 540 automatic recovery diagnosis command transmission list, 530 area-specific automatic recovery diagnosis propriety list.

Claims

An elevator equipped with a seismic sensor that senses ground acceleration;
An elevator system comprising: a monitoring center in communication with the elevator to monitor the elevator;
The elevator stops operation when the seismic sensor detects a high acceleration exceeding a shutdown threshold, and transmits a high acceleration sensing signal and a shutdown signal to the monitoring center.
When the monitoring center receives the high acceleration sensing signal and the operation stop signal from the elevator, the elevator automatically diagnoses the elevator when the seismic intensity of the area where the elevator is installed is less than the seismic intensity threshold. Issue a signal that causes
Elevator system characterized by.
An elevator system according to claim 1, wherein
The monitoring center
Acquire earthquake information from multiple earthquake information provision organizations after an earthquake occurs,
At least two pieces of earthquake information among a plurality of acquired pieces of 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 larger than the shutdown threshold Sending a signal to cause the elevator to perform an automatic recovery diagnostic operation if it is below a recoverable threshold,
Elevator system characterized by.
The elevator system according to claim 1 or 2,
The monitoring center
Acquire earthquake information of the area where a large number of elevators are installed from a plurality of earthquake information provision organizations after an earthquake occurs,
When no seismic intensity above the seismic intensity threshold is observed in the area, and no acceleration above the restorable threshold larger than the shutdown threshold is observed in the area,
Among the elevators that have sent the high acceleration sensing signal and the operation stop signal to the monitoring center, transmitting a signal that causes all the elevators installed in the area to execute an automatic recovery diagnosis operation.
Elevator system characterized by.