Double deck elevator

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

[0001] The present disclosure relates to a double-deck elevator.

[0002] There is a technology that automatically inspects elevators after an earthquake occurs before maintenance engineers make their rounds, and if no abnormalities are found, allows the elevator to be used as normal (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2006-151660

[0004] However, the technology described in Patent Document 1 is intended for single-deck elevators, not for double-deck elevators.

[0005] Therefore, there is a need to automatically restore the operation of double-deck elevators after an earthquake occurs.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a double-deck elevator that can automatically recover after an earthquake occurs.

[0007] The double-deck elevator according to the present disclosure comprises a car device that can move up and down within the hoistway, a control device that controls the movement of the car device, and a detection device, wherein 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 the control device receives earthquake information and then performs a control operation to stop the car device at the nearest floor and then performs a diagnostic operation to diagnose the condition of the elevator, during the diagnostic operation, 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, and determines whether normal operation is possible based on information from the first detector.

[0008] According to the present disclosure, automatic recovery can be achieved after an earthquake occurs.

[0009] It is a block diagram showing the configuration of a double-deck elevator in embodiment 1. It is a block diagram showing the control device and various sensors of Figure 1. It is a flowchart explaining an operation example of the control device of Figure 1.

[0010] Embodiment 1. Figure 1 is a structural diagram showing a double-deck elevator in embodiment 1. A building is provided with a hoistway 1. Within the hoistway 1, a car device 2 and a counterweight 3 are provided so as to be movable in the vertical direction.

[0011] 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 hoisting machine 4 generates a driving force for moving the car equipment 2 and the counterweight 3. A main rope 6 is wound around a driving sheave of the hoisting machine 4.

[0012] The car equipment 2 is connected to one end of the main rope 6. The counterweight 3 is connected to the other end of the main rope 6. As a result, the car equipment 2 and the counterweight 3 are suspended within the hoistway 1.

[0013] The rotation of the drive sheave of the hoisting machine 4 is controlled by a control command from the control device 5 to the hoisting machine 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 hoisting machine 4. In this way, the car equipment 2 and the counterweight 3 are controlled by the control device 5.

[0014] A relay box 10 is fixed to the inner wall of the hoistway 1. The relay terminal housed in the relay box 10 is electrically connected to the control device 5 via a fixed-side control cable 11. The relay terminal housed in the relay box 10 is also electrically connected to the car device 2 via a movable-side control cable 12. The fixed-side control cable 11 is fixed to the inner wall of the hoistway 1. The movable-side control cable 12 hangs down in the hoistway 1 between the car device 2 and the relay box 10. As a result, the movable-side control cable 12 is a car movement target device that operates together with the movement of the car device 2. The control device 5 is electrically connected to the car device 2 via the fixed-side control cable 11, the relay terminal in the relay box 10, and the movable-side control cable 12.

[0015] A landing entrance / exit 14a is provided at the landing 14 on each floor. Also, a landing door 15 for opening and closing the landing entrance / exit 14a is provided at the landing 14 on each floor.

[0016] The car equipment 2 has an upper car 21, a lower car 22, and an inter-floor adjustment device 23. The lower car 22 is disposed below the upper car 21. The lower car 22 is connected to the upper car 21 via the inter-floor adjustment device 23.

[0017] The upper car 21 has an upper car body 21a and an upper car door 21b. The upper car body 21a is provided with an upper car entrance / exit 21c. The upper car door 21b moves relative to the upper car body 21a by the driving force of an upper car door drive device (not shown). The upper car door 21b moves relative to the upper car body 21a to open and close the upper car entrance / exit 21c.

[0018] At a floor where the upper car 21 is stopped, the landing door 15 faces the upper car door 21b. As a result, at a 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. At a floor where the upper car 21 is stopped, the landing doorway 14a and the upper car doorway 21c are opened and closed by the landing door 15 interlocking with the upper car door 21b.

[0019] The lower car 22 has a lower car body 22a and a lower car door 22b. A lower car entrance 22c is provided in the lower car body 22a. 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 moves relative to the lower car body 22a to open and close the lower car entrance 22c.

[0020] At a floor where the lower car 22 is stopped, the landing door 15 faces the lower car door 22b. As a result, at a floor where the lower car 22 is stopped, when the lower car door 22b moves relative to the lower car body 22a, the landing door 15 interlocks with the lower car door 22b. At a floor where the lower car 22 is stopped, the landing door 14a and the lower car door 22c are opened and closed by the landing door 15 interlocking with the lower car door 22b.

[0021] 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 operation of the floor adjustment device 23 to adjust the distance between the upper car 21 and the lower car 22 is controlled by the control device 5.

[0022] An overhead section 24 is provided at the upper end of the hoistway 1. The overhead section 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 position of the landing 14 on the top floor.

[0023] A pit section 25 is provided at the lower end of the elevator shaft 1. The pit section 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 elevator shaft 1 when the upper car 21 stops at the floor position of the landing 14 on the lowest floor.

[0024] A shock absorber 26 is provided in the pit portion 25. If the car device 2 falls for some reason, the shock absorber 26 receives the car device 2, thereby mitigating the impact applied to the car device 2.

[0025] An earthquake detector 81 is provided in the pit portion 25. The earthquake detector 81 is electrically connected to the control device 5.

[0026] The earthquake detector 81 detects the occurrence of an earthquake. The earthquake detector 81 detects, for example, P waves, and transmits a detection signal based on the detected P waves to the control device 5 as earthquake information.

[0027] The control device 5 performs controlled operation to stop the car device 2 at the nearest floor upon receiving a detection signal from the earthquake detector 81. An emergency earthquake alert may be distributed to the control device 5 as earthquake information from a distribution server 83 via the Internet 82.

[0028] After performing the controlled operation, the control device 5 starts a diagnostic operation to diagnose the state of the elevator. In this case, during the diagnostic operation, the control device 5 moves the car device 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. The control device 5 sets the moving speed of the car device 2 during the diagnostic operation to a low diagnostic speed that is slower than the moving speed of the car device 2 during normal operation.

[0029] The control device 5 operates the floor adjustment device 23 during diagnostic operation.

[0030] In the diagnostic operation, the control device 5 opens and closes the upper car door 21 b and the lower car door 22 b while the car device 2 is stopped at a position where the upper car 21 and the lower car 22 are stopped at different floors. Note that, although an example in which a machine room 1 a is provided will be described in the present embodiment, a machine room-less system may also be used.

[0031] FIG. 2 is a block diagram showing the control device 5 and various sensors shown in FIG.

[0032] 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 perform controlled operation to the hoisting machine 4. The hoisting machine 4 operates based on the control signal. As a result, the car equipment 2 stops at the nearest floor. After performing controlled operation, the control device 5 performs diagnostic operation to diagnose the state of the elevator. In diagnostic operation, the control device 5 moves the car equipment 2 between a push-up position and a push-down position. During diagnostic operation, the control device 5 determines whether normal operation is possible based on information from the detection device 200.

[0033] The detection device 200 includes a first detector 201 , a second detector 211 , and a third detector 221 .

[0034] The first detector 201 is a detector for detecting the presence or absence of an abnormality in a car movement target device that operates in conjunction with the movement of the car device 2. The car movement target device is, for example, the movable-side control cable 12.

[0035] The first detector 201 has an upper car sound collector 202 , a lower car sound collector 203 , and an interference detector 204 .

[0036] The upper car sound collector 202 is provided on the upper car main body 21a. The upper car sound collector 202 detects abnormal sounds generated in the hoistway 1 and outputs the 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.

[0037] If the control device 5 determines that no abnormal sound is occurring, it determines that there is no abnormality in the equipment to which the car is moved. If the control device 5 determines that an abnormal sound is occurring, it determines that there is an abnormality in the equipment to which the car is moved.

[0038] The lower car sound collector 203 is provided on the lower car main body 22 a. The lower car sound collector 203 has the same function as the upper car sound collector 202.

[0039] It should be noted that, as long as it is possible to detect abnormal sounds occurring within the elevator shaft 1, only one of the upper car sound collector 202 and the lower car sound collector 203 may be used.

[0040] The interference detector 204 detects the rate of change of the torque of the hoisting machine 4 per unit time, and outputs the rate of change to the control device 5 as a detection signal.

[0041] When the rate of change in 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 no snagging has occurred in the movable-side control cable 12. In this case, the control device 5 determines that there is no abnormality in the equipment that is the object of car movement.

[0042] When the rate of change in torque of the hoist 4 per unit time detected by the interference detector 204 is equal to or greater than a threshold value, the control device 5 determines that a snag has occurred in the movable-side control cable 12. In this case, the control device 5 determines that an abnormality has occurred in the equipment that is the object of car movement.

[0043] The interference detector 204 may detect the current flowing through the hoisting machine 4 and output the detection signal to the control device 5. If the moving-side control cable 12 is caught, a load greater than normal is applied to the hoisting machine 4, and the current flowing through the hoisting machine 4 also increases. Therefore, if the rate of increase in current of the hoisting machine 4 per unit time is less than the threshold current value, the control device 5 can also determine that the moving-side control cable 12 is not caught. Also, if the rate of increase in current of the hoisting machine 4 per unit time is equal to or greater than the threshold current value, the control device 5 can also determine that the moving-side control cable 12 is caught.

[0044] The second detector 211 detects the operating state of the floor adjustment device 23 and outputs the result as a detection signal to the control device 5 .

[0045] The second detector 211 has an upper car position detector 212 and a lower car position detector 213 .

[0046] The upper car position detector 212 is provided on the upper car body 21a. The upper car position detector 212 detects the bedsore level of the upper car body 21a. The upper car position detector 212 detects the bedsore level as 0 when the position of a plate (not shown) installed on the inner wall of the elevator shaft 1 for each floor matches the position of the upper car position detector 212. The upper car position detector 212 detects a positive value when the upper car body 21a is displaced above the position of the plate, and a negative value when the upper car body 21a is displaced below the position of the plate. The upper car position detector 212 outputs the detected bedsore level as a detection signal to the control device 5.

[0047] 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 in accordance with the control command based on the detection signal output from the upper car position detector 212.

[0048] The lower car position detector 213 is provided on the lower car body 22 a. The lower car position detector 213 detects the bedsore level of the lower car body 22 a. The lower car position detector 213 is configured to have the same function as the upper car position detector 212.

[0049] 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.

[0050] The third detector 221 has a landing door open / close detector 222 , an upper car door open / close detector 223 , and a lower car door open / close detector 224 .

[0051] The landing door open / close detector 222 is composed of a photoelectric sensor that detects the state of the landing entrance / exit 14 a. The landing door open / close detector 222 detects whether the state of the landing entrance / exit 14 a is fully closed or fully open at the floor where the car device 2 is stopped, and outputs the detection result to the control device 5 as a detection signal.

[0052] The upper car door open / close detector 223 is composed of a photoelectric sensor that detects the state of the upper car entrance 21 c. The upper car door open / close detector 223 detects whether the state of the upper car entrance 21 c is fully closed or fully open at the floor where the upper car 21 stops, and outputs the detection result to the control device 5 as a detection signal.

[0053] When 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. When 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.

[0054] The lower car door open / close detector 224 is composed of a photoelectric sensor that detects the state of the lower car entrance 22 c. The lower car door open / close detector 224 detects whether the state of the lower car entrance 22 c is fully closed or fully open at the floor where the lower car 22 stops, and outputs the detection result to the control device 5 as a detection signal.

[0055] When 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. When 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.

[0056] If the detection signal from the first detector 201 indicates that there is no abnormality, the detection signal from the second detector 211 indicates that the floor adjustment device 23 is operating according to the control command, and the detection signal from the third detector 221 indicates that the door is opening and closing according to the control command, the control device 5 will do the following: end the diagnostic operation and automatically restore the double-deck elevator.

[0057] Next, an example of the procedure for the diagnostic operation under the control of the control device 5 will be specifically described with reference to FIG.

[0058] FIG. 3 is a flowchart illustrating an example of the operation of the control device 5 of FIG.

[0059] In the diagnostic operation, the moving speed of the car unit 2 is set to a low diagnostic speed, and the car unit 2 is moved from one of the push-up position and the push-down position to the other.

[0060] In the diagnostic operation, the travel speed of the car device 2 for each floor is then set to an individual floor stop diagnostic speed, and it is determined at each floor whether the floor adjustment device 23 operates according to the control command, and whether the door opening / 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 travel speed of the car device 2 in normal operation.

[0061] (Operation Procedure of Diagnostic Operation) In step S11, the control device 5 determines whether or not an earthquake has been detected. If the control device 5 detects an earthquake, the process of step S11 proceeds to step S12. If the control device 5 does not detect an earthquake, the process of step S11 continues.

[0062] In step S12, the control device 5 performs controlled operation.

[0063] In step S13, the control device 5 determines whether or not there are any passengers remaining in the car device 2. When the control device 5 determines that there are no passengers remaining in the car device 2, it advances the processing of step S13 to processing of step S14. When the control device 5 determines that there are any passengers remaining in the car device 2, it continues the processing of step S13. Whether or not there are any passengers remaining in the car device 2 may be determined based on the weight generated on the car device 2 by a scale (not shown). Also, whether or not there are any passengers remaining in the car device 2 may be determined by a security camera (not shown).

[0064] In step S14, the control device 5 starts a diagnostic operation.

[0065] In step S15, the control device 5 sets the moving speed of the car device 2 to a low speed diagnostic speed.

[0066] In step S16, the control device 5 starts the movement of the car device 2 from one of the push-up position and the push-down position to the other.

[0067] In step S17, the control device 5 determines whether or not an abnormality has been detected. If the control device 5 determines that an abnormality has been detected, the process of step S17 proceeds to step S28. If the control device 5 determines that an abnormality has not been detected, the process of step S17 proceeds to step S18.

[0068] In step S18, the control device 5 determines whether or not 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. If 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 processing of step S18 to processing of step S19. If 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 processing of step S18 to the processing of step S17.

[0069] In step S19, the control device 5 sets the moving speed of the car device 2 to the speed for each floor stop diagnosis.

[0070] In step S20, the control device 5 moves the car equipment 2 by one floor.

[0071] Here, an example of moving floors one by one will be described, but it is not necessary to move floors one by one as long as it is possible to ultimately move to all floors and determine whether or not there is an abnormality.

[0072] In step S21, the control device 5 transmits a control command to the floor adjustment device 23.

[0073] In step S22, the control device 5 determines whether the inter-floor adjustment device 23 operates in accordance with the control command. If the control device 5 determines that the inter-floor adjustment device 23 operates in accordance with the control command, the control device 5 advances the processing of step S22 to processing of step S23. If the control device 5 determines that the inter-floor adjustment device 23 does not operate in accordance with the control command, the control device 5 advances the processing of step S22 to processing of step S28.

[0074] In step S23, the control device 5 transmits a control command for the door opening / closing operation.

[0075] Here, a control command for the door opening / closing operation is transmitted to each of the upper car door drive device and the lower car door drive device. Note that, in this embodiment, a case where the floor pitch is constant is described; however, if the floor pitch is not constant, it is possible that, at a floor where the car equipment 2 is stopped, the landing door 15 faces only one of the upper car door 21b and the lower car door 22b. In such a state, the drive of the upper car door 21b or the lower car door 22b that faces the landing door 15 is controlled.

[0076] In step S24, the control device 5 determines whether the door opening / closing operation is being performed according to the control command. If the control device 5 determines that the door opening / closing operation is being performed according to the control command, the process of step S24 proceeds to step S25. If the control device 5 determines that the door opening / closing operation is not being performed according to the control command, the process of step S24 proceeds to step S28.

[0077] In step S25, the control device 5 determines whether there is a floor to which the vehicle has not moved after the individual floor stop diagnostic speed has been set. If the control device 5 determines that there is a floor to which the vehicle has not moved after the individual floor stop diagnostic speed has been set, the control device 5 returns the processing of step S25 to the processing of step S20. If the control device 5 determines that there is no floor to which the vehicle has not moved after the individual floor stop diagnostic speed has been set, the control device 5 advances the processing of step S25 to the processing of step S26.

[0078] In step S26, the control device 5 ends the diagnostic operation.

[0079] In step S27, the control device 5 automatically restores the double-deck elevator and ends the series of processes.

[0080] In step S28, the control device 5 stops the diagnostic operation.

[0081] In step S29, the control device 5 requests a maintenance person to confirm the status. For example, the control device 5 requests a maintenance person via the Internet 82 to a remote monitoring system (not shown).

[0082] In step S30, the control device 5 determines whether or not a restoration has been performed by a maintenance person. If the control device 5 determines that a restoration has been performed by a maintenance person, the control device 5 ends the processing of step S30. If the control device 5 determines that a restoration has not been performed by a maintenance person, the control device 5 continues the processing of step S30.

[0083] 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 unit 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. Simultaneously with this movement, the double-deck elevator determines whether normal operation is possible based on information from the first detector 201. As a result, the car unit 2 moves between the push-up position and the push-down position. This makes it possible to determine whether there is an abnormality in the double-deck elevator's inherent structure. This allows automatic recovery after an earthquake occurs.

[0084] Furthermore, during diagnostic operation, the double-deck elevator may determine whether normal operation is possible based on information from the second detector 211 while operating the floor adjustment device 23. This allows the car equipment 2 to determine whether the upper car 21 and the lower car 22 will stop at the correct positions. This makes it possible to accurately determine whether there is an abnormality in the structure inherent to the double-deck elevator. This allows it to determine whether the floor adjustment device 23 is operating normally, allowing for automatic recovery after an earthquake occurs.

[0085] Furthermore, during 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 may determine whether normal operation is possible based on information from the third detector 221 while performing the opening and closing operations of the upper car door 21b and the lower car door 22b. This makes it possible to detect door opening and closing abnormalities in both the upper car 21 and the lower car 22. Therefore, it is possible to determine whether both the upper car door 21b and the lower car door 22b are operating normally, allowing for automatic recovery after an earthquake occurs.

[0086] In the above description, an example has been described in which the detection signals of all 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 limited to this.

[0087] For example, in the diagnostic operation, the floor adjustment device 23 does not have to be operated. In other words, the control device 5 does not have to use the detection signal of the second detector 211. The control device 5 can determine whether or not the car equipment 2 can be moved and whether or not normal operation is possible without operating the floor adjustment device 23.

[0088] Furthermore, for example, in the diagnostic operation, the upper car door 21b does not need to be opened or closed. In other words, the control device 5 does not need to use the detection signal of the third detector 221. The control device 5 can determine whether or not the car device 2 can move without opening or closing the upper car door 21b.

[0089] Furthermore, for example, in the diagnostic operation, the lower car door 22b does not need to be opened or 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 or not the car device 2 can move without opening or closing the lower car door 22b.

[0090] DESCRIPTION OF SYMBOLS 1 Hoistway, 1a Machine room, 2 Cage 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, 14a Landing entrance / exit, 15 Landing door, 21 Upper car, 21a Upper car body, 21b Upper car door, 21c Upper car entrance / exit, 22 Lower car, 22a Lower car body, 22b Lower car door, 22c Lower car entrance / exit, 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 car sound collector, 203 Lower car sound collector, 204 Interference detector, 211 second detector, 212 upper car position detector, 213 lower car position detector, 221 third detector, 222 landing door open / close detector, 223 upper car door open / close detector, 224 lower car door open / close detector.

Claims

1. A cage device movable vertically within a hoistway, a control device for controlling the movement of the cage device, a detection device, comprising: the detection device having a first detector for detecting the presence or absence of an abnormality in a cage moving target device that operates as the cage device moves; the cage device having an upper cage and a lower cage disposed below the upper cage and connected to the upper cage; when the control device performs a diagnostic operation for diagnosing the state of the elevator after performing a control operation to stop the cage device at the nearest floor by receiving earthquake information, in the diagnostic operation, while moving the cage device from one of a pushing-up position where the lower cage stops at the top floor of the building and a pushing-down position where the upper cage stops at the bottom floor of the building to the other, based on information from the first detector, it determines whether normal operation is possible; the first detector having a microphone; the microphone being provided on at least one of the upper cage and the lower cage; the microphone being a double-deck elevator that detects abnormal sounds generated within the hoistway.

2. A cage device movable vertically within a hoistway, a control device for controlling the movement of the cage device, a detection device, comprising: the detection device having a first detector for detecting the presence or absence of an abnormality in a cage moving target device that operates as the cage device moves; the cage device having an upper cage and a lower cage disposed below the upper cage and connected to the upper cage; when the control device performs a diagnostic operation for diagnosing the state of the elevator after performing a control operation to stop the cage device at the nearest floor by receiving earthquake information, in the diagnostic operation, while moving the cage device from one of a pushing-up position where the lower cage stops at the top floor of the building and a pushing-down position where the upper cage stops at the bottom floor of the building to the other, based on information from the first detector, it determines whether normal operation is possible; the cage device having a floor gap adjusting device provided between the upper cage and the lower cage; the detection device having a second detector for detecting the presence or absence of an abnormality in the floor gap adjusting device; the floor gap adjusting device being capable of adjusting the distance between the upper cage and the lower cage. The control device is a double-deck elevator that determines whether the normal operation is possible based on the information from the second detector while operating the inter-floor adjustment device during the diagnostic operation. **Claim 3**: The double-deck elevator according to claim 2, wherein the second detector includes an upper car position detector that detects the floor displacement level of the upper car and a lower car position detector that detects the floor displacement level of the lower car. **Claim 4**: A car device movable in the vertical direction within a hoistway, a control device that controls the movement of the car device, a detection device, and is provided with the detection device has a first detector for detecting the presence or absence of an abnormality of a car movement target device that operates along with the movement of the car device, the car device has an upper car and a lower car disposed below the upper car and connected to the upper car, when the control device performs a diagnostic operation for diagnosing the state of the elevator after performing a control operation to stop the car device at the nearest floor by receiving earthquake information, in the diagnostic operation, while moving the car device from one of a butting-up position where the lower car stops at the top floor of the building and a butting-down position where the upper car stops at the bottom floor of the building to the other, based on the information from the first detector, it determines whether normal operation is possible, the upper car has an upper car main 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 main body provided with a lower car entrance and a lower car door that opens and closes the lower car entrance, the detection device has a third detector for detecting the presence or absence of an abnormality in the opening and closing operations of each of the upper car door and the lower car door, in the diagnostic operation, the control device determines whether normal operation is possible based on the information from the third detector while performing the opening and closing operations of the upper car door and the lower car door respectively with the car device stopped at positions where the upper car and the lower car stop at different floors from each other, The third detector is a double-deck elevator having an upper car door opening / closing detector that detects whether the state of the upper car entrance is either a fully closed state or a fully open state, and a lower car door opening / closing detector that detects whether the state of the lower car entrance is either a fully closed state or a fully open state.