WO2024062534A1

WO2024062534A1 - Double deck elevator

Info

Publication number: WO2024062534A1
Application number: PCT/JP2022/035008
Authority: WO
Inventors: 陽太大森; 智史山▲崎▼
Original assignee: 三菱電機ビルソリューションズ株式会社
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2024-03-28

Abstract

This double deck elevator includes: a car device 2 that is capable of moving inside a hoistway 1 in the vertical direction; a control device 5 that controls the movement of the car device 2; and a detection device 200. The detection device 200 includes a first detector 201 that is for detecting the presence or absence of an anomaly in a car movement target device which operates together with the movement of the car device 2. The car device 2 includes an upper car 21 and a lower car 22 that is disposed below the upper car 21 and that is connected to the upper car 21. When the control device 5 performs an emergency operation for stopping the car device 2 at the nearest floor upon receiving earthquake information and then performs a diagnostic operation for diagnosing the state of the elevator, in the diagnostic operation, the control device 5 determines, on the basis of information from the first detector 201, whether or not a normal operation is possible, while moving the car device 2 from one to the other of a raised position at which the lower car 22 stops at the top floor of a building and a lowered position at which the upper car 21 stops at the bottom floor of the building.

Description

double deck elevator

The present disclosure relates to a double deck elevator.

There is a technology that automatically inspects elevators after an earthquake occurs and before maintenance engineers make their rounds, and if there are no abnormalities, the elevator can be used normally (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2006-151660

However, the technology described in Patent Document 1 is for single-deck elevators, not for double-deck elevators.

Therefore, there is a need to automatically restore operation of double-deck elevators after an earthquake occurs.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide a double-deck elevator that can be automatically restored after an earthquake occurs.

The double-deck elevator according to the present disclosure includes a car device that can move up and down within the elevator shaft, a control device that controls the movement of the car device, and a detection device, and the detection device has a first detector for detecting the presence or absence of an abnormality in the car movement target device that operates in conjunction with the movement of the car device, and the car device has an upper car and a lower car that is disposed below the upper car and connected to the upper car, and when performing a control operation to stop the car device at the nearest floor upon receiving earthquake information and then a diagnostic operation to diagnose the elevator's condition, the control device moves the car device from one of a push-up position where the lower car stops on the top floor of the building to a push-down position where the upper car stops on the bottom floor of the building to the other during the diagnostic operation, and determines whether normal operation is possible based on information from the first detector.

According to the present disclosure, automatic restoration can be performed after an earthquake occurs.

1 is a configuration diagram showing a double deck elevator in Embodiment 1. FIG. 2 is a block diagram showing a control device and various sensors in FIG. 1. FIG. 2 is a flowchart illustrating an example of the operation of the control device in FIG. 1. FIG.

Embodiment 1.
FIG. 1 is a configuration diagram showing a double deck elevator in Embodiment 1. A hoistway 1 is provided in the building. Inside the hoistway 1, a car device 2 and a counterweight 3 are provided so as to be movable in the vertical direction.

A machine room 1a is provided above the hoistway 1. A hoisting machine 4 and a control device 5 are provided in the machine room 1a. The hoist 4 generates a driving force that moves the car device 2 and the counterweight 3. A main rope 6 is wound around the drive sheave of the hoist 4.

The car equipment 2 is connected to one end of the main rope 6. A counterweight 3 is connected to the other end of the main rope 6. Thereby, the car equipment 2 and the counterweight 3 are suspended within the hoistway 1.

The rotation of the drive sheave of the hoist 4 is controlled by a control command from the control device 5 to the hoist 4. The car equipment 2 and the counterweight 3 move within the hoistway 1 in accordance with the rotation of the drive sheave of the hoist 4. Thereby, the car device 2 and the counterweight 3 are controlled by the control device 5.

A relay box 10 is fixed to the inner wall of the hoistway 1. The relay terminals housed in the relay box 10 are electrically connected to the control device 5 via the fixed side control cable 11. Further, the relay terminal housed in the relay box 10 is electrically connected to the car device 2 via the movable control cable 12. The fixed side control cable 11 is fixed to the inner wall of the hoistway 1. The movable control cable 12 hangs down within the hoistway 1 between the car equipment 2 and the relay box 10. As a result, the movable control cable 12 becomes a device to be moved by the car, which operates together with the movement of the car device 2. The control device 5 is electrically connected to the car device 2 via a fixed side control cable 11, a relay terminal in the relay box 10, and a movable side control cable 12.

Each floor's landing 14 is provided with a landing entrance/exit 14a. Also, each floor's landing 14 is provided with a landing door 15 for opening and closing the landing entrance/exit 14a.

The car device 2 includes an upper car 21, a lower car 22, and a floor adjustment device 23. The lower car 22 is arranged below the upper car 21. Further, the lower car 22 is connected to the upper car 21 via a floor adjustment device 23.

The upper car 21 has an upper car body 21a and an upper car door 21b. The upper car main body 21a is provided with an upper car entrance 21c. The upper car door 21b moves relative to the upper car body 21a by the driving force of an upper car door driving device (not shown). The upper car door 21b opens and closes the upper car entrance 21c by moving with respect to the upper car body 21a.

On the floor where the upper car 21 is stopped, the landing door 15 faces the upper car door 21b. As a result, on the floor where the upper car 21 is stopped, when the upper car door 21b moves relative to the upper car body 21a, the landing door 15 interlocks with the upper car door 21b. On the floor where the upper car 21 is stopped, the landing door 15 interlocks with the upper car door 21b, thereby opening and closing the landing doorway 14a and the upper car doorway 21c.

The lower car 22 has a lower car body 22a and a lower car door 22b. The lower car main body 22a is provided with a lower car entrance 22c. The lower car door 22b moves relative to the lower car body 22a by the driving force of a lower car door drive device (not shown). The lower car door 22b opens and closes the lower car entrance 22c by moving relative to the lower car body 22a.

On the floor where the lower car 22 is stopped, the landing door 15 faces the lower car door 22b. Thereby, on the floor where the lower car 22 is stopped, when the lower car door 22b moves relative to the lower car main body 22a, the landing door 15 interlocks with the lower car door 22b. On the floor where the lower car 22 is stopped, the hall door 15 interlocks with the lower car door 22b, thereby opening and closing the hall entrance 14a and the lower car entrance 22c.

The floor adjustment device 23 is provided between the upper car 21 and the lower car 22. The floor adjustment device 23 is capable of adjusting the distance between the upper car 21 and the lower car 22. The adjustment operation of the distance between the upper car 21 and the lower car 22 by the floor adjustment device 23 is controlled by the control device 5.

An overhead section 24 is provided at the upper end of the hoistway 1. The overhead part 24 is provided so that a certain distance can be maintained between the upper end of the upper car 21 and the top of the hoistway 1 when the lower car 22 stops at the floor of the landing 14 on the top floor. There is.

A pit portion 25 is provided at the lower end of the hoistway 1. The pit portion 25 is provided so that a certain distance can be maintained between the lower end of the lower car 22 and the bottom of the hoistway 1 when the upper car 21 stops at the floor of the landing 14 on the lowest floor. ing.

A buffer 26 is provided in the pit portion 25. If the car device 2 falls for some reason, the shock applied to the car device 2 is alleviated by the shock absorber 26 receiving the car device 2.

An earthquake detector 81 is provided in the pit portion 25. Earthquake detector 81 is electrically connected to control device 5 .

The earthquake detector 81 detects the occurrence of an earthquake. The earthquake detector 81 detects, for example, P waves and transmits the detected detection signal to the control device 5 as earthquake information.

By receiving a detection signal from the earthquake detector 81, the control device 5 performs a controlled operation to stop the car device 2 at the nearest floor. An emergency earthquake early warning may be distributed to the control device 5 as earthquake information from the distribution server 83 via the Internet 82.

After performing the control operation, the control device 5 starts a diagnostic operation for diagnosing the condition of the elevator. In this case, in the diagnostic operation, the control device 5 moves the car equipment from one of the push-up position where the lower car 22 stops at the top floor of the building and the push-down position where the upper car 21 stops at the bottom floor of the building to the other. Move 2. The control device 5 sets the moving speed of the car device 2 during diagnostic operation to a low-speed diagnostic speed that is lower than the moving speed of the car device 2 during normal operation.

The control device 5 operates the floor adjustment device 23 in the diagnostic operation.

In the diagnostic operation, the control device 5 controls the opening/closing operation of the upper car door 21b and the opening/closing operation of the lower car door 22b with the car equipment 2 stopped at a position where the upper car 21 and the lower car 22 stop at different floors. Perform each action. In this embodiment, an example in which the machine room 1a is provided will be described, but a machine room-less system may be used.

FIG. 2 is a block diagram showing the control device 5 and various sensors in FIG. 1.

A detection signal is input to the control device 5 from the earthquake detector 81. In this case, the control device 5 outputs a control command to the hoisting machine 4 for performing controlled operation. The hoist 4 operates based on the control signal. As a result, the car device 2 stops at the nearest floor. After performing the control operation, the control device 5 performs a diagnostic operation for diagnosing the state of the elevator. The control device 5 moves the car device 2 between the pushed-up position and the pushed-down position in the diagnostic operation. During diagnostic operation, control device 5 determines whether normal operation is possible based on information from detection device 200.

The detection device 200 includes a first detector 201, a second detector 211, and a third detector 221.

The first detector 201 is a detector for detecting the presence or absence of an abnormality in the equipment to be moved by the car, which operates together with the movement of the car equipment 2. The device to be moved by the car is, for example, the movable control cable 12.

The first detector 201 has an upper car sound collector 202, a lower car sound collector 203, and an interference detector 204.

The upper car sound collector 202 is provided on the upper car body 21a. The upper car sound collector 202 detects abnormal sounds generated in the hoistway 1 and outputs a detection signal to the control device 5. An example of an abnormal sound is a scraping sound generated when the car equipment 2 moves with the main rope 6 caught on various devices in the hoistway 1. Another example of an abnormal sound is a collision sound generated when the counterweight 3 comes off a guide rail (not shown) in the hoistway 1 and collides with the car equipment 2.

If the control device 5 determines that no abnormal sound is occurring, it determines that there is no abnormality in the equipment to be moved by the car. If the control device 5 determines that an abnormal sound is occurring, it determines that there is an abnormality in the device to be moved by the car.

The lower car sound collector 203 is provided on the lower car body 22a. The lower car sound collector 203 has the same function as the upper car sound collector 202.

It should be noted that only one of the upper car sound collector 202 and the lower car sound collector 203 may be used, as long as it is possible to detect abnormal sounds occurring within the elevator shaft 1.

The interference detector 204 detects the rate of change in the torque of the hoist 4 per unit time and outputs it to the control device 5 as a detection signal.

If the rate of change in the torque of the hoist 4 per unit time detected by the interference detector 204 is less than the threshold value, the control device 5 determines that the movable control cable 12 is not caught. In this case, the control device 5 determines that there is no abnormality in the device to be moved by the car.

If the rate of change in the torque of the hoist 4 per unit time detected by the interference detector 204 is greater than or equal to the threshold value, the control device 5 determines that the movable control cable 12 is caught. In this case, the control device 5 determines that there is an abnormality in the device to be moved by the car.

Note that the interference detector 204 may detect the current flowing through the hoisting machine 4 and output it to the control device 5 as a detection signal. If the movable control cable 12 is caught, the hoisting machine 4 is loaded more than usual, so the current flowing through the hoisting machine 4 also increases. Therefore, when the current increase rate of the hoist 4 per unit time is less than the threshold current value, the control device 5 can also determine that the movable control cable 12 is not caught. Further, when the current increase rate of the hoist 4 per unit time is equal to or higher than the threshold current value, the control device 5 can also determine that the movable control cable 12 is caught.

The second detector 211 detects the operating state of the floor adjustment device 23 and outputs it to the control device 5 as a detection signal.

The second detector 211 has an upper car position detector 212 and a lower car position detector 213.

The upper car position detector 212 is provided on the upper car body 21a. The upper car position detector 212 detects the level of bedsores on the upper car body 21a. The upper car position detector 212 detects that the bedsore level is 0 when the position of a plate (not shown) installed on the inner wall of the hoistway 1 for each floor matches the position of the upper car position detector 212. . The upper car position detector 212 detects as a positive signal when the upper car body 21a is shifted upward from the position of the plate, and as a negative signal when it shifts downward. The upper car position detector 212 outputs the detected bedsore level to the control device 5 as a detection signal.

The control device 5 outputs a control command to the floor adjustment device 23 based on the detection signal output from the upper car position detector 212. After outputting the control command to the floor adjustment device 23, the control device 5 determines whether the floor adjustment device 23 is operating according to the control command based on the detection signal output from the upper car position detector 212. judge.

The lower car position detector 213 is provided on the lower car body 22a. The lower car position detector 213 detects the level of bedsores on the lower car body 22a. The lower car position detector 213 is configured to have the same function as the upper car position detector 212.

The control device 5 outputs a control command to the floor adjustment device 23 based on the detection signal output from the lower car position detector 213. After outputting the control command to the floor adjustment device 23, the control device 5 determines whether the floor adjustment device 23 is operating according to the control command based on the detection signal output from the lower car position detector 213. judge.

The third detector 221 includes a hall door opening/closing detector 222, an upper car door opening/closing detector 223, and a lower car door opening/closing detector 224.

The hall door opening/closing detector 222 is composed of a photoelectric sensor that detects the state of the hall entrance 14a. The hall door opening/closing detector 222 detects whether the state of the hall entrance 14a is fully closed or fully open at the floor where the car equipment 2 has stopped, and outputs the detection result to the control device 5 as a detection signal. .

The upper car door opening/closing detector 223 is composed of a photoelectric sensor that detects the state of the upper car doorway 21c. The upper car door opening/closing detector 223 detects whether the upper car doorway 21c is fully closed or fully open at the floor where the upper car 21 has stopped, and sends the detection result to the control device 5 as a detection signal. Output.

If both the landing door 15 and the upper car door 21b are operating according to the control command, the control device 5 determines that the door opening/closing operation is operating according to the control command. If either the landing door 15 or the upper car door 21b is not operating according to the control command, the control device 5 determines that the door opening/closing operation is not operating according to the control command.

The lower car door opening/closing detector 224 is composed of a photoelectric sensor that detects the state of the lower car doorway 22c. The lower car door open/close detector 224 detects whether the lower car doorway 22c is fully closed or fully open at the floor where the lower car 22 has stopped, and sends the detection result to the control device 5 as a detection signal. Output.

If both the landing door 15 and the lower car door 22b are operating according to the control command, the control device 5 determines that the door opening/closing operation is operating according to the control command. If either the landing door 15 or the lower car door 22b is not operating according to the control command, the control device 5 determines that the door opening/closing operation is not operating according to the control command.

The control device 5 indicates that there is no abnormality according to the detection signal of the first detector 201, that the floor adjustment device 23 operates according to the control command according to the detection signal of the second detector 211, and that the door is closed according to the detection signal of the third detector 221. If the opening/closing operation is operating according to the control command, do the following: That is, the control device 5 ends the diagnostic operation and automatically restores the double deck elevator.

Next, an example of the operating procedure of the diagnostic operation under the control of the control device 5 will be specifically explained using FIG. 3.

FIG. 3 is a flowchart illustrating an example of the operation of the control device 5 in FIG. 1.

During diagnostic operation, the moving speed of the car device 2 is set to a low diagnostic speed, and the car device 2 moves from one of the push-up position and the push-down position to the other.

In the diagnostic operation, the moving speed of the car equipment 2 for each floor is then set to the individual floor stop diagnostic speed, and at each floor, it is determined whether the floor adjustment device 23 operates according to the control command, and whether the door opening and closing operation is performed according to the control command. Here, the individual floor stop diagnostic speed is set to a speed that is faster than the low speed diagnostic speed and slower than the moving speed of the car equipment 2 in normal operation.

(Diagnostic operation procedure)
In step S11, the control device 5 determines whether an earthquake has been detected. When the control device 5 detects an earthquake, it advances the process of step S11 to the process of step S12. If the control device 5 does not detect an earthquake, it continues the process of step S11.

In step S12, the control device 5 performs controlled operation.

In step S13, the control device 5 determines whether there are any passengers remaining in the car device 2. When the control device 5 determines that there are no passengers left in the car device 2, the control device 5 advances the process of step S13 to the process of step S14. When the control device 5 determines that there are passengers remaining in the car device 2, the control device 5 continues the process of step S13. Note that whether or not there are any passengers remaining in the car device 2 may be determined based on the weight generated in the car device 2 using a scale (not shown). Furthermore, it may be determined whether or not there are any passengers in the car device 2 using a security camera (not shown).

In step S14, the control device 5 starts diagnostic operation.

In step S15, the control device 5 sets the moving speed of the car device 2 to the low-speed diagnostic speed.

In step S16, the control device 5 starts moving the car device 2 from one of the push-up position and the push-down position to the other.

In step S17, the control device 5 determines whether an abnormality has been detected. If the control device 5 determines that an abnormality has been detected, it advances the process of step S17 to the process of step S28. If the control device 5 determines that no abnormality is detected, it advances the process of step S17 to the process of step S18.

In step S18, the control device 5 determines whether the movement of the car device 2 from one of the push-up position and the push-down position to the other is completed. When the control device 5 determines that the movement of the car device 2 from one of the push-up position and the push-down position to the other has been completed, the control device 5 advances the process of step S18 to the process of step S19. When the control device 5 determines that the movement of the car device 2 from one of the push-up position and the push-down position to the other has not been completed, the control device 5 returns the process of step S18 to the process of step S17.

In step S19, the control device 5 sets the moving speed of the car equipment 2 to the speed for each floor stoppage diagnosis.

In step S20, the control device 5 moves the car equipment 2 by one floor.

Note that here we will explain an example of moving floors one by one, but in the end it is sufficient to move all floors and determine whether there is an abnormality or not, so there is no need to move floors one by one. .

In step S21, the control device 5 transmits a control command to the floor adjustment device 23.

In step S22, the control device 5 determines whether the floor adjustment device 23 operates according to the control command. When the control device 5 determines that the floor adjustment device 23 operates according to the control command, it advances the process of step S22 to the process of step S23. When the control device 5 determines that the floor adjustment device 23 does not operate according to the control command, it advances the process of step S22 to the process of step S28.

In step S23, the control device 5 transmits a control command for the door opening/closing operation.

Here, the control command for the door opening/closing operation is sent to each of the upper car door drive device and the lower car door drive device. In this embodiment, the case where the inter-floor pitch is constant is explained, but if the inter-floor pitch is not constant, the landing door 15 may close to the upper car door on the floor where the car equipment 2 has stopped. 21b and the lower car door 22b may be faced. In such a state, the drive of the upper car door 21b and the lower car door 22b, which faces the landing door 15, is controlled.

In step S24, the control device 5 determines whether the door opening/closing operation is performed according to the control command. When the control device 5 determines that the door opening/closing operation is performed according to the control command, it advances the process of step S24 to the process of step S25. When the control device 5 determines that the door opening/closing operation is not performed according to the control command, it advances the process of step S24 to the process of step S28.

In step S25, the control device 5 determines whether or not there is a floor on which the vehicle has not moved after setting the speed for stopping diagnosis on each floor. If the control device 5 determines that there is a floor on which the vehicle has not moved after setting the speed for stopping diagnosis on each floor, it returns the process of step S25 to the process of step S20. When the control device 5 determines that there is no floor to which the vehicle has not moved after setting the speed for stopping diagnosis on each floor, it advances the process of step S25 to the process of step S26.

In step S26, the control device 5 ends the diagnostic operation.

In step S27, the control device 5 automatically restores the double deck elevator and ends the series of processes.

In step S28, the control device 5 cancels the diagnostic operation.

In step S29, the control device 5 requests confirmation from the maintenance personnel. For example, the control device 5 requests a maintenance person from a remote monitoring system (not shown) via the Internet 82.

In step S30, the control device 5 determines whether restoration has been performed by maintenance personnel. When the control device 5 determines that the maintenance staff has performed the restoration, the control device 5 ends the process of step S30. When the control device 5 determines that the maintenance staff has not performed the restoration, the control device 5 continues the process of step S30.

From the above explanation, when the double-deck elevator performs diagnostic operation to diagnose the elevator's condition after receiving a detection signal from the earthquake detector 81, it performs the following during diagnostic operation. That is, the double-deck elevator moves the car equipment 2 from one of a push-up position where the lower car 22 stops on the top floor of the building and a push-down position where the upper car 21 stops on the bottom floor of the building to the other. At the same time as this movement, the double-deck elevator determines whether or not normal operation is possible based on information from the first detector 201. As a result, the car equipment 2 moves between the push-up position and the push-down position. Therefore, it is possible to determine whether or not there is an abnormality in the unique structure of the double-deck elevator. Therefore, it is possible to automatically restore operation after an earthquake occurs.

Furthermore, during the diagnostic operation, the double deck elevator may determine whether normal operation is possible based on the information from the second detector 211 while operating the floor adjustment device 23. Thereby, the car device 2 can determine whether the position of the upper car 21 and the position of the lower car 22 are correct. Therefore, it is possible to accurately determine whether there is an abnormality in the structure specific to the double deck elevator. Therefore, it is possible to determine whether or not the floor adjustment device 23 operates normally, so that it can be automatically restored after an earthquake occurs.

Furthermore, in the diagnostic operation, the double-deck elevator performs the following with the car equipment 2 stopped at a position where the upper car 21 and the lower car 22 stop at different floors. That is, the double deck elevator determines whether normal operation is possible based on the information from the third detector 221 while opening and closing the upper car door 21b and the lower car door 22b. Good too. Thereby, abnormalities in opening and closing of the doors of both the upper car 21 and the lower car 22 can be detected. Therefore, it is possible to determine whether both the upper car door 21b and the lower car door 22b operate normally, so that they can be automatically restored after an earthquake occurs.

Note that in the above description, an example was described in which all the detection signals of the first detector 20, the second detector 211, and the third detector 221 are used in the diagnostic operation, but the present invention is not particularly limited to this.

For example, in the diagnostic operation, the floor adjustment device 23 does not need to be operated. That is, the control device 5 does not need to use the detection signal of the second detector 211. The control device 5 can determine whether the car equipment 2 can be moved without operating the floor adjustment device 23, and can determine whether normal operation is possible.

Furthermore, for example, in the diagnostic operation, the upper car door 21b does not need to be opened/closed. That is, the control device 5 does not need to use the detection signal of the third detector 221. The control device 5 can determine whether the car device 2 can be moved without opening and closing the upper car door 21b.

Furthermore, for example, in the diagnostic operation, the lower car door 22b does not need to be opened/closed. That is, the control device 5 does not need to use the detection signal of the third detector 221. The control device 5 can determine whether the car device 2 can be moved without opening and closing the lower car door 22b.

1 Hoistway, 1a Machine room, 2 Car equipment, 3 Counterweight, 4 Hoisting machine, 5 Control device, 6 Main rope, 10 Relay box, 11 Fixed side control cable, 12 Movable side control cable, 14 Landing area, 14a Landing entrance/exit, 15 Landing door, 21 Upper car, 21a Upper car body, 21b Upper car door, 21c Upper car entrance, 22 Lower car, 22a Lower car body, 22b Lower car door, 22c Lower car entrance, 23 Floor adjustment device , 24 Overhead section, 25 Pit section, 26 Buffer, 81 Earthquake detector, 82 Internet, 83 Distribution server, 200 Detection device, 201 First detector, 202 Upper cage sound collector, 203 Lower cage sound collector, 204 Interference detector, 211 Second detector, 212 Upper car position detector, 213 Lower car position detector, 221 Third detector, 222 Landing door opening/closing detector, 223 Upper car door opening/closing detector, 224 Lower car door opening/closing Detector.

Claims

Car equipment that can be moved up and down in the hoistway,
a control device that controls movement of the car device;
Equipped with a detection device and
The detection device has a first detector for detecting the presence or absence of an abnormality in a device to be moved by the car, which operates as the car device moves;
The car device has an upper car, a lower car arranged below the upper car and connected to the upper car,
When the control device performs a control operation to stop the car equipment at the nearest floor by receiving earthquake information, and then performs a diagnostic operation to diagnose the condition of the elevator, in the diagnostic operation, the control device performs a control operation to stop the car equipment at the nearest floor. While moving the car equipment from one of the push-up position where the lower car stops at the bottom floor of the building and the push-down position where the upper car stops at the bottom floor of the building, Based on this, it is determined whether normal operation is possible or not.
The car equipment includes an inter-floor adjustment device provided between the upper car and the lower car,
The detection device has a second detector for detecting the presence or absence of an abnormality in the floor adjustment device,
The floor adjustment device is capable of adjusting the distance between the upper car and the lower car,
2. The double-deck elevator according to claim 1, wherein the control device determines whether the normal operation is possible or not based on information from the second detector while operating the floor adjustment device in the diagnostic operation.
The upper car has an upper car body provided with an upper car entrance and an upper car door that opens and closes the upper car entrance.
The lower car has a lower car body provided with a lower car entrance and a lower car door that opens and closes the lower car entrance.
The detection device includes a third detector for detecting the presence or absence of an abnormality in the opening and closing operations of the upper car door and the lower car door,
In the diagnostic operation, the control device controls the opening/closing operation of the upper car door and the opening/closing operation of the lower car door with the car equipment stopped at a position where the upper car and the lower car stop at different floors. The double deck elevator according to claim 1 or 2, wherein, while performing each of the operations, it is determined whether or not the normal operation is possible based on information from the third detector.