JP2009057192A - Device and method for controlling elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deterioration of elevator service by early and safely resuming operation of an elevator, limiting to one part of the whole elevation distance, after performing the controlled operation in earthquake, and thereafter, expanding an operation resumption section early. <P>SOLUTION: Sections wherein diagnostic operation of an elevator is performed after the controlled operation in earthquake are divided into a prior diagnosed section limited to one part of the whole elevation distance of the elevator and a normal diagnosed section limited to a predetermined range except the prior diagnosed section. After executing the control operation in earthquake, diagnostic operation is executed in the only prior diagnosed section, and under a predetermined condition, normal operation of the elevator is resumed, limiting to a predetermined range within the prior diagnosed section. After the normal operation within the prior diagnosed section is resumed, diagnostic operation in the normal diagnosis section is executed, and under a predetermined condition, normal operation of the elevator is resumed, expanding to a predetermined range within the normal diagnosed section. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator control device and a control method for performing a diagnostic operation in order to resume the operation of an elevator after an earthquake control operation.

  In an elevator equipped with an earthquake control function, when an earthquake detector detects an earthquake shake, a rescue operation such as stopping the nearest floor is carried out according to the magnitude of the earthquake (acceleration of the building, etc.). The Conventionally, when there is a possibility that the elevator is damaged in some way by an earthquake, that is, when an earthquake of a predetermined scale occurs, the elevator is put into an operation stop state after the nearest floor stop, and specialized elevator maintenance is performed. Until the inspection work by the staff was carried out, the above operation stop state was continued.

  In the elevator with the above configuration, when an earthquake of a predetermined scale occurs, a considerable time is required until normal operation is resumed, and the service of the elevator is significantly reduced. Therefore, recently, in order to solve the above problems and to reduce the burden on the elevator maintenance staff at the time of the earthquake, diagnostic operation is performed under predetermined conditions after the control operation at the time of the earthquake, An elevator having a function of automatically recovering an elevator when no is detected is also realized. In such an elevator, for example, after stopping the nearest floor, after waiting for the car at the landing for about several minutes to counter aftershock, reset the earthquake detector of the elevator in the dormant state and slower than the rated speed The diagnostic operation is performed at a speed (hereinafter referred to as “low speed”).

  The reason why the diagnosis operation is performed at a low speed is to realize a highly accurate and reliable diagnosis (abnormality detection) by lowering the ascending / descending speed of the car, and the stopping distance of the car at the time of detecting the elevator abnormality. The reason is to minimize the damage by shortening.

  In addition, as a conventional technology for elevators that perform diagnostic operation under predetermined conditions after seismic control operation, when an earthquake of a predetermined scale occurs, the operation can be continued by measuring the rail interval etc. with an optical sensor or the like. When it is determined whether or not the operation can be continued, the car is operated at a low speed up and down within a range of ± 1000 mm, and when no abnormality is detected even at the low speed up and down operation, The thing which made it return to a driving | operation is proposed (for example, refer patent document 1).

Japanese Patent Laid-Open No. 11-171423

  In conventional elevators, the diagnosis operation is performed at a low speed. Therefore, when the ascending / descending stroke is long or the diagnosis operation is performed a plurality of times, the diagnosis operation requires a considerable time and the return to the normal operation is delayed. It was. If the car speed during diagnostic operation is increased in order to restore the elevator at an early stage, the damage at the time of occurrence of an abnormality will increase, and as a result, the restoration may be further delayed.

  Moreover, in the thing of patent document 1, if the abnormality is not discovered by both the measurement of the rail space | interval etc. by an optical sensor, and the low speed up-and-down operation implemented in the range of +/- 1000mm, the basis of returning to normal driving | operation is unclear. Yes, after returning to normal operation, there was a risk of malfunction when the car moved to a range other than the low-speed vertical operation. In such a case, since the car is traveling at the rated speed when a failure occurs, damage to the equipment in the hoistway, disconnection of the control cable, and the like may occur, causing further damage.

  Japanese Patent Application No. 2006-277927 has been filed by the applicant of the present application in order to solve the above-described problem in a conventional elevator and the above-described problem in an elevator described in Patent Document 1. In such an elevator, when the diagnosis operation is performed only after a part of the entire elevator lifting / lowering process after the control operation at the time of the earthquake and no abnormality is detected in the diagnosis operation, for example, the elevator is limited to a predetermined range in the diagnosis section. Thus, the elevator is returned to normal operation.

  According to this elevator, it is possible to restart the operation of the elevator early and safely after the control operation during an earthquake. However, since the operation of the elevator is resumed only in a certain section, the operation efficiency is poor, and when the number of elevator users increases after that, the user may wait for a long time to use the elevator or from the middle floor due to over capacity etc. There was a problem that the use of was severely restricted.

  The present invention has been made to solve the above-described problems. The purpose of the present invention is to resume the operation of the elevator early and safely by limiting the operation of the elevator to a part of the entire lifting process after the control operation at the time of earthquake. It is possible to provide an elevator control device and a control method capable of preventing a decrease in service of the elevator by early expanding the operation resuming period.

  The elevator control device according to the present invention includes a priority diagnosis section in which a section in which diagnosis operation is performed after the control operation of an elevator during an earthquake is limited to a part of the entire lifting process of the elevator, and a priority diagnosis among all the lifting processes. Diagnosis operation section setting unit that is divided into normal diagnosis sections that are limited to a predetermined range excluding the section, and after the control operation during the earthquake, the diagnosis operation is performed only in the priority diagnosis section, and priority is given under predetermined conditions. The normal operation of the elevator is resumed limited to a predetermined range in the diagnosis section, and after the normal operation in the priority diagnosis section is resumed, the diagnosis operation in the normal diagnosis section is performed, under predetermined conditions, A diagnostic operation control unit that extends to a predetermined range in the normal diagnosis section and resumes the normal operation of the elevator.

  The elevator control method according to the present invention includes a priority diagnosis section in which a section in which diagnosis operation is performed after an elevator control operation during an earthquake is limited to a part of the entire elevator travel, and priority diagnosis among the entire lift processes. After setting the normal diagnosis section limited to a predetermined range excluding the section and after the seismic control operation, the diagnosis operation is performed only in the priority diagnosis section. The step of resuming the normal operation of the elevator limited to a predetermined range and the normal operation in the priority diagnosis section are resumed, and then the diagnosis operation of the normal diagnosis section is performed and the normal diagnosis section is performed under a predetermined condition. And resuming the normal operation of the elevator by expanding it to a predetermined range.

  According to this invention, after the control operation during an earthquake, the elevator operation can be resumed early and safely by limiting it to a part of the entire ascending / descending stroke, and thereafter the operation resuming section can be expanded early. Thus, it is possible to prevent the service of the elevator from being lowered.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is an overall configuration diagram showing an elevator control apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a car that moves up and down in the elevator hoistway, 2 denotes a counterweight that moves up and down in the hoistway in the opposite direction to the car 1, and 3 denotes a main rope that suspends the car 1 and the counterweight 2 in a fishing bottle manner, 4 is a driving sheave for a hoisting machine on which a part of the main rope 3 is wound, and 5 is a control device that controls the entire elevator such as control of the hoisting machine.

  Reference numeral 6 denotes an earthquake detector that detects shaking of a building equipped with an elevator. The seismic detector 6 is composed of, for example, a two-dimensional accelerometer, and is installed in an elevator machine room or a hoistway pit part above the building. When the earthquake detector 6 detects a predetermined magnitude of vibration, the earthquake detector 6 outputs earthquake information to the control device 5. In the control device 5, when earthquake information is input from the earthquake detector 6, an earthquake control operation is performed to rescue passengers such as the nearest floor stop according to the magnitude of the earthquake.

Next, a specific configuration of the control device 5 will be described.
The control device 5 includes, for example, an operation control unit 7, an operation state storage unit 8, a diagnosis operation section setting unit 9, a diagnosis operation section control unit 10, and a diagnosis operation control unit 11. The operation control unit 7 controls various devices during the elevator operation, and based on various commands, for returning the elevator to the normal operation after the normal operation of the elevator, the earthquake control operation, and the earthquake control operation. Perform diagnostic operation. The operation status storage unit 8 has a function of detecting and storing the operation status of the elevator. For example, the operation status storage unit 8 stores elevator operation information during normal operation based on the status of button calls (car calls, landing calls), the number of passengers on each stop floor, the number of times wheelchair buttons are used, and the like. .

  The diagnostic operation section setting unit 9 has a function of setting a section (hereinafter referred to as “diagnostic section”) in which the diagnostic operation is performed after the control operation during an earthquake. The diagnosis operation section setting unit 9 sets the diagnosis section by dividing it into a priority diagnosis section and a normal diagnosis section. The priority diagnosis section is a section that is set to be limited to a part of the entire lift process of the elevator as a section in which the diagnosis operation is preferentially performed immediately after the earthquake control operation. Further, the normal diagnosis section means a section in which the diagnosis operation is performed after the diagnosis operation in the priority diagnosis section is completed, for example, a predetermined range excluding the priority diagnosis section in the entire elevator lifting / lowering process. (A whole section excluding the priority diagnosis section in all the lifting strokes, or a part of this whole section).

  In an elevator with a long ascending / descending stroke, the normal diagnosis section is divided into a first normal diagnosis section in which the diagnosis operation is performed after completion of the diagnosis operation in the priority diagnosis section, and a diagnosis operation is performed after the diagnosis operation in the first normal diagnosis section is completed. The second normal diagnosis section to be performed and the third normal diagnosis section in which the diagnosis operation is performed after completion of the diagnosis operation in the second normal diagnosis section may be configured with a plurality of sections with priorities. In addition, this priority means the order which implements diagnostic driving | operation.

  In addition, the priority diagnosis section and the normal diagnosis section may be fixed sections that are set in advance before the occurrence of an earthquake based on information such as floors where there are many users and floors that are likely to be damaged by an earthquake, for example. However, it may be a variable section that is set based on the operation information stored in the operation status storage unit 8 during normal operation before the occurrence of the earthquake or immediately after the occurrence of the earthquake. By setting it as a variable section, it becomes possible to set the priority diagnosis section and the normal diagnosis section to sections that are more suitable for elevator use. Reference numeral 12 denotes a data setting device for correcting and changing the setting contents of the diagnostic operation section setting unit 9 by an external operation.

  The diagnostic operation section control unit 10 has a function of controlling a section in which the diagnostic operation is actually performed based on the diagnosis section (priority diagnosis section, normal diagnosis section) set by the diagnosis operation section setting unit 9. That is, the diagnostic operation section control unit 10 sets the priority diagnosis section immediately after the control operation at the time of the earthquake is finished, and sets the normal diagnosis section (a plurality of normal diagnosis sections are set after the diagnosis operation in the priority diagnosis section is finished). If it is, the normal diagnosis section is selected as the section in which the diagnosis operation is actually performed in order from the highest priority order.

  And the diagnostic driving | operation control part 11 controls diagnostic driving | operation based on the diagnostic area controlled (selected) by the diagnostic driving | operation area control part 10 on predetermined conditions. That is, the diagnostic operation control unit 11 outputs a command to the operation control unit 7 after the control operation at the time of the earthquake, and first performs the diagnostic operation only in the priority diagnosis section. If no abnormality is found in the diagnostic operation in the priority diagnosis section, the elevator is returned to the normal operation only within a predetermined range (including the entire priority diagnosis section) in the priority diagnosis section.

  In addition, the diagnosis operation control unit 11 resumes normal operation in the priority diagnosis section, and then performs diagnosis operation in the normal diagnosis section in consideration of the current operation state of the elevator and the like. If no abnormality is found in the diagnosis operation in the normal diagnosis section, the normal operation resumption section is expanded to a predetermined range in the normal diagnosis section. That is, the section for returning to the normal operation is expanded to a predetermined range extending over the priority diagnosis section and the normal diagnosis section.

  When the normal diagnosis section is set to be divided into a plurality of sections, the diagnosis operation control unit 11 performs the diagnosis operation from the first normal diagnosis section after the normal operation of some sections is resumed. . Then, if no abnormality is detected in the diagnostic operation in the first normal diagnosis section, the normal operation of the elevator is resumed by expanding to a predetermined range in the first normal diagnosis section. Thereafter, the diagnosis operation is performed in the second normal diagnosis section, and similarly, the section in which the normal operation is resumed is expanded to a predetermined range in the second normal diagnosis section. In this way, the diagnosis operation is performed in order from the normal diagnosis section having a higher priority, and the section in which the normal operation is resumed is sequentially expanded to the normal diagnosis section in which the diagnosis operation is completed.

Next, the operation of the elevator control device 5 having the above-described configuration will be described.
FIG. 2 is a flowchart showing the operation of the elevator control apparatus according to Embodiment 1 of the present invention, and shows the case where the diagnosis section (priority diagnosis section, normal diagnosis section) is set to a predetermined section in advance. Is. The diagnosis section is set in advance in the diagnosis operation section setting unit 9 by an elevator maintenance staff or the like.

  If an earthquake occurs during normal operation of the elevator, the earthquake detector 6 senses the shaking of the earthquake. When the earthquake detector 6 detects a shake exceeding a predetermined value, it outputs earthquake information to the control device 5 (S101). In the control device 5, based on the earthquake information from the earthquake detector 6, the operation control unit 7 starts the control operation at the time of earthquake, for example, performs a door opening operation after stopping the nearest floor to prevent confinement (S102). ).

  When the earthquake control operation ends, the control device 5 starts diagnostic operation for automatically returning the elevator to normal operation (S103). If the elevator is not a target for diagnostic operation, the elevator is stopped after manual operation by an expert engineer after completion of the earthquake control operation (S104).

  When the elevator is the target of the diagnostic operation, the control device 5 first determines whether or not there is a diagnosis section setting (function) by the diagnosis operation section setting unit 9 (S105). Here, when there is no setting function of the diagnostic section, the diagnostic section cannot be limited to only a part of the lifting / lowering stroke, and thus the operation control unit 7 performs the diagnostic operation over the entire lifting / lowering stroke as usual. (S106). And when abnormality is discovered in this diagnostic driving | operation, a diagnostic driving | operation is stopped and driving | operation is stopped until manual recovery by a specialist engineer is made (S107, S108). If no abnormality is detected in the diagnostic operation, the elevator is returned to the normal operation for the entire lifting / lowering process, and the service is resumed (S109).

  On the other hand, when there is a diagnostic section setting function by the diagnostic operation section setting unit 9, the diagnostic operation control section 11 controls the diagnostic operation based on the diagnosis section controlled by the diagnostic operation section control section 10. That is, if it is immediately after the control operation at the time of the earthquake, the diagnostic operation section control unit 10 first selects the priority diagnosis section as the section for performing the diagnostic operation, and performs the diagnostic operation only for this priority diagnosis section ( S110). If no abnormality is detected in the diagnostic operation for only this priority diagnosis section, after the diagnosis operation is completed, a part of the entire lifting process, for example, the priority diagnosis section in which no abnormality is detected in the diagnosis operation The normal operation is resumed only within a predetermined range (including the entire priority diagnosis section) (S111, S112). If an abnormality is detected in the diagnostic operation, the process proceeds to S104 and the diagnostic operation is stopped.

  When the normal operation is resumed in a partial section of the entire lifting stroke (for example, a predetermined range in the priority diagnosis section), the control device 5 uses the elevator in the normal operation resumed in the partial section. The presence or absence is determined (S113). And the control apparatus 5 will start the diagnostic driving | operation in the unexecuted area of a diagnostic driving | operation sequentially, if the utilization of an elevator is no longer detected for the predetermined period at the time of the normal driving | operation restarted in the partial area. That is, first, it is determined whether or not the diagnostic operation has been completed in the entire ascending / descending stroke (S114). If there is an unexecuted section of the diagnostic operation, the elevator operation mode is switched from the normal operation to the diagnostic operation ( S115), the diagnostic operation of the unexecuted section is started.

  For example, when the diagnosis operation is completed only in the priority diagnosis section, the diagnosis operation section control unit 10 sets the normal diagnosis section as the section for performing the diagnosis operation (when a plurality of normal diagnosis sections are set, The diagnosis section is selected in descending order of priority among the diagnosis sections, and the diagnosis operation for only the normal diagnosis section is performed. In addition, if no abnormality is detected in such a diagnostic operation, a predetermined range within a section in which the diagnostic operation is completed and safety is confirmed after the diagnostic operation is completed (including all sections in which the diagnostic operation is completed). The normal operation is resumed by limiting to the above. Then, the diagnosis operation in the unexecuted section is sequentially performed by the above procedure, and when the diagnosis operation in the entire lifting stroke is finally completed, the process proceeds to S109, and the elevator is returned to the normal operation for the entire lifting stroke.

  According to the first embodiment of the present invention, after the control operation at the time of earthquake, the elevator can be limited to the priority diagnosis section and can be returned to the normal operation at an early stage and safely. It can be expanded to the normal diagnosis interval. Accordingly, it is possible to prevent the deterioration of the operation efficiency of the elevator after returning to normal operation, and to provide a comfortable service. Further, when the normal diagnosis section is divided into a plurality of sections and set, the diagnosis operation in each section can be completed in a short time, so that the problem that the elevator cannot be used for a long time can be prevented. For this reason, it becomes an especially effective means when the elevator is installed in a high-rise building or the like.

  In addition, by configuring the setting contents in the diagnostic operation section setting unit 9 so that it can be modified and changed by the data setting device 12, it is possible to make settings taking into account the characteristics of the building occupants and the like, and further improve the service Will be able to.

  Note that FIG. 2 shows the case where the elevator operation is stopped when some abnormality is detected during the diagnostic operation in the normal diagnostic section (S104). In such a case, the diagnostic operation is completed by then. Then, the normal operation may be continued only in the section where safety is confirmed.

Embodiment 2. FIG.
FIG. 3 is a flowchart showing the operation of the elevator control apparatus according to Embodiment 2 of the present invention. The diagnosis section (priority diagnosis section, normal diagnosis section) is based on the operation information stored in the operation status storage unit 8. The case where each is set is shown. In such a case, the operation status storage unit 8 detects and stores the operation status of the elevator during normal operation, and updates the content for each predetermined period, for example.

  The operations from S101 to S109 in FIG. 1 are the same in the second embodiment. If it is determined in S105 that the diagnostic operation section setting unit 9 has a diagnostic section setting function, the control device 5 next determines whether or not a diagnostic section is determined in advance (S201). In addition, when the diagnostic section is determined in advance, the set section is prioritized and the diagnostic operation is started (S202).

  On the other hand, when the diagnosis section is not determined in advance, the diagnosis operation section setting unit 9 determines the diagnosis section (priority diagnosis section, normal diagnosis) based on the operation status stored in the operation status storage section 8 and a predetermined calculation formula. (Section) is calculated (S203 to S205). And the diagnostic driving | operation control part 11 implements operation | movement of S110 thru | or S115 in FIG. 1 based on the said diagnostic area calculated by the diagnostic driving | operation area setting part 9 (S206). If the diagnosis section cannot be calculated from the operation status in the operation status storage unit 8, the diagnosis operation is performed for the entire lifting process and the elevator is returned to the normal operation (S 207).

  According to the second embodiment of the present invention, the diagnosis section (priority diagnosis section, normal diagnosis section) can be set based on the operation status during normal operation, so that it can cope with the building characteristics that change every moment. become. For example, it is possible to set a diagnosis section according to the situation even when a building tenant enters and exits frequently or when a wheelchair user frequently enters and exits the building.

Embodiment 3 FIG.
FIG. 4 is a diagram for explaining the function of the elevator control apparatus according to Embodiment 3 of the present invention, and shows a case where a plurality of elevators (three in FIG. 4) are installed in the same building. . In such a case, for example, as shown in FIG. 6A, the control device 5 can move through the entire lifting process of the building by transferring to each elevator when normal operation in the priority diagnosis section is resumed. Set the priority diagnosis interval so that you can. According to this configuration, even immediately after the occurrence of the earthquake, it is possible to move the entire lifting stroke using the elevator, and convenience can be improved. For example, even a wheelchair user can move to each floor of a building using an elevator.

  Further, as shown in FIG. 6B, the control device 5 sets the priority diagnosis section so as to always include a section having a large number of users (for example, 1F to 10F in the case shown in FIG. 6B). To do. According to this configuration, it is possible to prevent a decrease in operation efficiency and provide better services to many users.

1 is an overall configuration diagram illustrating an elevator control device according to Embodiment 1 of the present invention. It is a flowchart which shows operation | movement of the control apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the control apparatus of the elevator in Embodiment 2 of this invention. It is a figure for demonstrating the function of the control apparatus of the elevator in Embodiment 3 of this invention.

Explanation of symbols

1 car, 2 counterweight, 3 main rope, 4 drive sheave, 5 controller,
6 Earthquake detector, 7 Operation control unit, 8 Operation status storage unit,
9 diagnostic operation section setting section, 10 diagnostic operation section control section, 11 diagnostic operation control section,
12 data setting device,

Claims (9)

The section in which the diagnosis operation is performed after the control operation at the time of the earthquake of the elevator is limited to a priority diagnosis section that is limited to a part of the entire lifting process of the elevator, and a predetermined range excluding the priority diagnosis section in the entire lifting process. Diagnosis operation section setting unit that is set to be divided into normal diagnosis sections;
After the control operation at the time of earthquake is performed, the diagnostic operation is performed only in the priority diagnosis section, the normal operation of the elevator is resumed limited to a predetermined range in the priority diagnosis section under the predetermined condition, and the priority After normal operation is resumed in the diagnosis section, the diagnosis operation in the normal diagnosis section is performed, and the normal operation of the elevator is resumed by expanding to a predetermined range in the normal diagnosis section under a predetermined condition. A diagnostic operation control unit;
An elevator control device comprising: An operation status storage unit for storing the operation status of the elevator during normal operation;
With
2. The elevator control device according to claim 1, wherein the diagnosis operation section setting unit sets a priority diagnosis section and a normal diagnosis section based on the operation state stored in the operation state storage unit. The diagnosis operation section setting unit sets the normal diagnosis section by dividing it into a plurality of sections with priorities,
After the normal operation in the priority diagnosis section is resumed, the diagnostic operation control unit performs the diagnosis operation in order from the normal diagnosis section having a higher priority, and resumes the normal operation under a predetermined condition. 3. The elevator control device according to claim 1, wherein the elevator control device is sequentially expanded to a predetermined range in the normal diagnosis section in which the diagnosis operation is completed.   The diagnostic operation control unit starts diagnostic operation in an unexecuted section of the diagnostic operation when the elevator is not used for a predetermined period after normal operation is resumed in a partial section of the entire lifting process. The elevator control device according to any one of claims 1 to 3.   When a plurality of elevators are installed in the same building, the diagnostic operation section setting unit can raise and lower the entire lifting process of the building using each elevator in which the normal operation in the priority diagnosis section is resumed. The elevator control device according to any one of claims 1 to 4, wherein the priority diagnosis section is set so as to be able to. The section in which the diagnosis operation is performed after the control operation at the time of the earthquake of the elevator is limited to the priority diagnosis section that is limited to a part of the entire lifting process of the elevator, and the predetermined range excluding the priority diagnosis section in the entire lifting process. A step of setting the normal diagnosis section separately;
After the control operation at the time of earthquake is carried out, performing the diagnostic operation only in the priority diagnosis section, and resuming the normal operation of the elevator limited to a predetermined range in the priority diagnosis section under a predetermined condition;
After the normal operation in the priority diagnosis section is resumed, the diagnosis operation in the normal diagnosis section is performed, and the normal operation of the elevator is expanded to a predetermined range in the normal diagnosis section under a predetermined condition. A step to resume;
An elevator control method comprising: A step of memorizing the operation status of the elevator during normal operation;
With
The elevator control device according to claim 6, wherein the priority diagnosis section and the normal diagnosis section are set based on the operation state stored during normal operation. The normal diagnosis section is assigned with priority and divided into a plurality of sections,
After the normal operation in the priority diagnosis section is resumed, the diagnosis operation is performed in order from the normal diagnosis section having a higher priority, and the section in which the normal operation is resumed under a predetermined condition Gradually expanding to a predetermined range within the normal diagnostic interval;
The elevator control method according to claim 6 or 7, further comprising: Determining whether or not the elevator is used after normal operation is resumed in a partial section of the entire lifting stroke;
A step of starting diagnostic operation in an unexecuted section of diagnostic operation when the elevator is not used for a predetermined period during normal operation resumed in a section;
An elevator control method according to any one of claims 6 to 8, further comprising:

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