JP7501775B2 - Elevator Systems - Google Patents

Description

The present disclosure relates to elevator systems .

Patent Document 1 describes an elevator device. The elevator device described in Patent Document 1 is equipped with a device for deactivating the brake device of the hoisting machine. If a passenger becomes trapped in the car, a maintenance worker at the landing operates the device while watching the information displayed on the display, and moves the car to the nearest floor.

Patent document 1 also describes how a remote operator can operate a device that replaces the device in question and deactivate the brake device of the hoist.

Japanese Patent Publication No. 2011-63372

In the elevator system described in Patent Document 1, maintenance personnel must go to the site to rescue passengers.

Patent document 1 also describes how the brake device can be deactivated by manual operation by the operator, but the operator is required to have advanced skills in order to manually activate and deactivate the brake device remotely.

The present disclosure has been made to solve the above-mentioned problems. An object of the present disclosure is to provide an elevator system that does not require a maintenance worker to visit the site and does not require a remote operator to have advanced skills in order to rescue passengers trapped in the elevator car.

The elevator system according to the present disclosure includes an elevator device and an information center that manages the elevator device and has an operator. The elevator device includes a car, a rope for suspending the car, a sheave around which the rope is wound, a motor for driving the sheave, a brake device for preventing rotation of the sheave when in operation, a first detection means for detecting a specific failure that prevents the motor from driving the sheave, a second detection means for detecting that a passenger is trapped in the car, a transmission means for transmitting a specific first signal to the information center when the first detection means detects the specific failure and the second detection means detects the entrapment, a process execution means for starting a rescue process when a second signal is received from the information center in response to the first signal, a first control means for deactivating the brake device while enabling dynamic braking by the motor in the rescue process, and a third detection means for detecting that the car is located in a specific rescue zone including a stopping position of a hall. The first control means activates the brake device when the third detection means detects that the car is located in the rescue zone in the rescue process. The information center includes a display and a control device. When the control device receives the first signal, a mode for transmitting the second signal is added to the display as one of the selectable rescue operation modes.

The elevator system according to the present disclosure includes an elevator device and an information center that manages the elevator device and has an operator. The elevator device includes a car, a rope for suspending the car, a sheave around which the rope is wound, a motor for driving the sheave, a rotor that rotates in conjunction with the sheave and a shoe that contacts and separates from the rotor, and a brake device that can change the force with which the shoe is pressed against the rotor by a supplied voltage, a first detection means for detecting a specific failure that prevents the motor from driving the sheave, a second detection means for detecting that a passenger is trapped in the car, a transmission means for transmitting a specific first signal to the information center when the first detection means detects the specific failure and the second detection means detects the trapping, a process execution means for starting a rescue process when a second signal is received from the information center in response to the first signal, a first control means for moving the car by controlling a voltage supplied to the brake device in the rescue process, and a third detection means for detecting that the car is located in a specific rescue zone including a stopping position of a hall. In the rescue process, when the third detection means detects that the car has been placed in the rescue zone, the first control means prevents the sheave from rotating by the brake device. The information center includes a display and a control device. When the control device receives the first signal, a mode for transmitting the second signal is added to the display as one of the selectable rescue operation modes.

The elevator system according to the present disclosure does not require a maintenance person to be on-site to rescue passengers trapped in the car, nor does it require highly skilled remote operators.

FIG. 1 illustrates an example of an elevator system. FIG. 2 is a diagram for explaining functions of a control device and a monitoring device. 4 is a flowchart showing an example of the operation of the control device. 4 is a flowchart showing an example of the operation of the control device. 4 is a flowchart showing an example of the operation of the monitoring device. FIG. 2 is a diagram for explaining the function of an information center. 4 is a flowchart showing an example of the operation of the control device. FIG. 2 is a diagram illustrating an example of hardware resources of a control device. FIG. 13 is a diagram illustrating another example of hardware resources of a control device.

A detailed explanation is provided below with reference to the drawings. Duplicate explanations will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.

Embodiment 1.
Fig. 1 is a diagram showing an example of an elevator system. The elevator system shown in Fig. 1 includes an elevator device 1. The elevator device 1 is connected via a network 2 to a remote information center 4 where an operator 3 is located.

As an example, network 2 is an IP network. An IP network is a communication network that uses IP (Internet Protocol) as a communication protocol. Network 2 may be a closed network or an open network.

The information center 4 manages a large number of elevator devices. The elevator device 1 is an example of an elevator device managed by the information center 4.

The elevator device 1 includes a car 5 and a counterweight 6. The car 5 moves up and down in a hoistway 7. The counterweight 6 moves up and down in a hoistway 7. The car 5 and the counterweight 6 are suspended in the hoistway 7 by a rope 8. The rope 8 is, for example, a wire rope.

The hoist 9 drives the cage 5. The hoist 9 includes a sheave 10, a motor 11, an encoder 12 (not shown in FIG. 1), and a brake device 13.

The sheave 10 is rotatably supported on the frame of the hoist 9. The rope 8 is wound around the sheave 10. The motor 11 generates a driving force for driving the sheave 10. That is, the motor 11 rotates the sheave 10. The encoder 12 outputs a signal corresponding to the rotation angle of the sheave 10. The encoder 12 is, for example, a resolver. If the elevator device 1 is equipped with a speed governor, the function of the encoder 12 may be provided in the speed governor.

The brake device 13 is a device for holding the sheave 10 stationary. When the brake device 13 is activated, it prevents the sheave 10 from rotating. When the brake device 13 is not activated, the sheave 10 is able to rotate. In what follows, the term "activated" is used with respect to the brake device 13 to indicate a state in which the brake device 13 is performing its function, i.e., preventing the sheave 10 from rotating. The term "inactivated" is used with respect to the brake device 13 to indicate a state in which the brake device 13 is not performing its function, i.e., not preventing the sheave 10 from rotating.

As an example, the brake device 13 includes a rotating body and a shoe. The rotating body rotates in conjunction with the sheave 10. The shoe is provided so as to be movable so as to come into contact with and move away from the rotating body. The shoe is pressed against the rotating body, thereby generating resistance to the rotation of the sheave 10. In such a brake device 13, when power is supplied to the brake device 13, the shoe moves away from the rotating body and the brake device 13 becomes inoperative. In other words, the brake device 13 is released. When power to the brake device 13 is cut off, the shoe is pressed against the rotating body and the brake device 13 operates.

The hoist 9 is controlled by the control device 14. That is, the movement of the car 5 is controlled by the control device 14. A monitoring device 15 is connected to the control device 14. The monitoring device 15 communicates with the information center 4 via the network 2.

Figure 1 shows an example in which the hoisting machine 9 and the control device 14 are installed in a machine room 16 above the hoistway 7. The hoisting machine 9 and the control device 14 may also be installed in the hoistway 7. When the hoisting machine 9 is installed in the hoistway 7, the hoisting machine 9 may be installed at the top of the hoistway 7 or in a pit in the hoistway 7.

The cage 5 and the control device 14 are connected by a control cable 17. The equipment provided in the cage 5 is controlled by the control device 14. The cage 5 is equipped with a door 21, a motor 22, a weighing device 23, a camera 24, and an operation panel 25.

The entrance to the cage 5 is opened and closed by a door 21. A motor 22 generates a driving force for driving the door 21. A weighing device 23 measures the load on the cage 5. FIG. 1 shows an example in which the weighing device 23 is provided at the bottom of the cage 5. The weighing device 23 may be provided at the end of the rope 8.

The operation panel 25 includes a display 26, an intercom 27, a speaker 28, and buttons 29. The intercom 27 is a device that enables passengers in the car 5 to communicate with an operator 3 at the information center 4. The line that enables passengers in the car 5 to talk to the operator 3 via the intercom 27 may be a line separate from the line that is connected to the information center 4 via the monitoring device 15. The buttons 29 include a destination button, a door open button, and a door close button. The buttons 29 may also include other buttons.

The elevator device 1 is equipped with a landing device for detecting that the car 5 is located in a specific landing zone. The landing zone is set in advance according to the height of each landing 31. For example, a landing zone set according to the height of the landing 31 on the Nth floor includes a position where the car 5 stops at the landing 31 on the Nth floor. The position where the car 5 stops at the landing 31 on the Nth floor is a position of the car 5 where the height of the floor surface of the landing 31 on the Nth floor is the same as the floor surface of the car 5.

As an example, the landing device includes a photoelectric sensor 32 and a plate 33. The photoelectric sensor 32 is provided on the car 5. The plate 33 is provided on the elevator 7. The plate 33 is positioned to match the height of each landing 31. For example, the range in which the photoelectric sensor 32 can detect the plate 33 positioned to match the height of the landing 31 on the Nth floor is the landing zone on the Nth floor. When the photoelectric sensor 32 detects the plate 33, a detection signal corresponding to the detected plate 33 is transmitted from the photoelectric sensor 32 to the control device 14.

Figure 2 is a diagram for explaining the functions of the control device 14 and the monitoring device 15. As shown in Figure 2, the control device 14 includes a fault detection unit 41, a trapped-in detection unit 42, a processing execution unit 43, an alarm control unit 44, a hoist control unit 45, a speed detection unit 46, a position detection unit 47, a door control unit 48, and a passenger detection unit 49. The monitoring device 15 includes a transmission unit 51 and a request unit 52.

The operation of this elevator system will be described in detail below with reference to Figures 3 to 7. Figures 3 and 4 are flowcharts showing an example of the operation of the control device 14. Figures 3 and 4 show a series of operations.

The control device 14 determines whether a specific fault that prevents the motor 11 from driving the sheave 10 has been detected (S101). The fault is detected by the fault detection unit 41. As an example, if the inverter for controlling the motor 11 fails, the determination in S101 is Yes.

If S101 returns Yes, the control device 14 determines whether or not a passenger is trapped in the car 5 (S102). The fact that a passenger is trapped in the car 5 is detected by the trapping detection unit 42. The trapping detection unit 42 may detect the trapping of a passenger by using the live load measured by the weighing device 23. The trapping detection unit 42 may detect the trapping of a passenger by using an image captured by the camera 24.

When the fault detection unit 41 detects the specific fault, the result of S101 is Yes. When the entrapment detection unit 42 detects entrapment, the result of S102 is Yes. The result of S102 may be made before the result of S101. When the results of both S101 and S102 are Yes, an alert request is sent from the control device 14 to the monitoring device 15 (S103).

The conditions for transmitting the alert request are not limited to the above example. The alert request may be transmitted when both S101 and S102 are judged as Yes and it is further detected that the car 5 is located outside the door zone. The door zone is a zone in which the door of the landing 31 opens and closes in conjunction with the door 21 of the car 5.

Figure 5 is a flowchart showing an example of the operation of the monitoring device 15. The monitoring device 15 determines whether or not it has received an alert request from the control device 14 (S201). When the monitoring device 15 receives the alert request sent from the control device 14 in S103, it determines Yes in S201. When it determines Yes in S201, that is, when it determines Yes in both S101 and S102, the transmitting unit 51 transmits a specific first signal to the information center 4 (S202).

Figure 6 is a diagram for explaining the functions of the information center 4. The information center 4 includes a communication device 61, a display 62, an input device 63, and a control device 64.

The communication device 61 is a device that allows the operator 3 at the information center 4 to communicate with passengers in the car 5. The operator 3 talks to the passengers in the car 5 using the communication device 61, and operates the input device 63 while looking at the display 62. As an example, the input device 63 includes a keyboard and a mouse. Other devices may also be provided as the input device 63.

In the example shown in Figure 6, image A, image B, mode selection field C, confirmation item field D, execute button E, and cancel button F are displayed on display 62.

Image A is an image captured by camera 24. By looking at image A, operator 3 can know the situation inside car 5. Image B is an image displayed on display 26. By looking at image B, operator 3 can know the image that the passengers in car 5 are looking at.

The mode selection field C displays the selectable rescue operation modes. The operator 3 can select one of the rescue operation modes by operating the input device 63. The confirmation item field D displays the items that the operator 3 must confirm when executing the selected rescue operation mode. The execute button E is a button that the operator 3 presses to execute the selected rescue operation mode. The cancel button F is a button that the operator 3 presses to cancel the rescue operation mode that is being executed.

Figure 7 is a flowchart showing an example of the operation of the control device 64. The control device 64 determines whether or not a first signal has been received from the elevator device 1 (S301). When the control device 64 receives the first signal transmitted from the monitoring device 15 in S202, the determination in S301 is Yes.

If S301 is judged as Yes, the control device 64 adds "Brake Release" to one of the selectable rescue operation modes (S302). The control device 64 then judges whether or not "Brake Release" has been selected (S303). The operator 3 operates the pull-down menu displayed in the mode selection field C to select "Brake Release". This results in a Yes judgment in S303.

If the control device 64 does not receive the first signal from the elevator device 1, "Release brake" is not displayed in the mode selection field C, or "Release brake" is displayed in an unselectable state. In the mode selection field C, "Release brake" becomes selectable when the control device 64 receives the first signal.

If S303 is judged as Yes, the control device 64 judges whether the execution button E has been pressed (S304). The operator 3 reads the contents displayed in the confirmation item column D, performs the necessary action, and then presses the execution button E (Yes in S304). For example, the operator 3 informs the passenger in the car 5 of the following items before pressing the execution button E.
-The brakes will now be released and the cage will move.
- Do not hang up the phone until the door opens.
- Be careful of steps when getting off the car.
- If someone gets into the car, encourage them to get off.

If S304 is judged as Yes, a second signal is sent from the control device 64 to the elevator device 1 in response to the first signal (S305).

As shown in FIG. 5, when the monitoring device 15 transmits a first signal to the information center 4 in S202, it determines whether or not a second signal has been received from the information center 4 in response (S203). When the monitoring device 15 receives the second signal transmitted from the control device 64 in S305, it determines Yes in S203. For example, if there is no record of transmitting the first signal in S202, it will not be determined Yes in S203 even if the second signal is received from the control device 64. When it is determined Yes in S203, the request unit 52 transmits a rescue request to the control device 14 (S204). The rescue request may include the second signal. The request unit 52 may transfer the received second signal to the control device 14 as a rescue request.

As shown in Figure 3, when the control device 14 sends an alarm request to the monitoring device 15 in S103, it determines whether or not a rescue request has been received from the monitoring device 15 (S104). When the control device 14 receives the rescue request sent from the request unit 52 in S204, it determines Yes in S104. When it determines Yes in S104, that is, when the elevator device 1 receives a second signal from the information center 4 in response to the first signal, the processing execution unit 43 starts rescue processing (S105).

In the rescue process, first, the notification control unit 44 provides audio guidance to the passengers from the speaker 28 (S106). As an example, in S106, the notification control unit 44 issues a notification from the speaker 28 that an outside notification should be made if any abnormality is detected. In S106, the notification control unit 44 may also provide other information from the speaker 28. After the audio guidance has ended, the notification control unit 44 may issue a warning sound from the speaker 28.

When the voice guidance in S106 ends, the hoist control unit 45 enables dynamic braking by the motor 11 (S107). Specifically, in S107, the hoist control unit 45 shorts the terminals of the motor 11. This causes the motor 11 to generate a back electromotive force when the sheave 10 rotates.

Next, the hoist control unit 45 deactivates the brake device 13 while enabling dynamic braking by the motor 11 (S108). As a result, if the car 5 is lighter than the counterweight 6, the car 5 moves upward. If the car 5 is heavier than the counterweight 6, the car 5 moves downward. The movement of the car 5 causes the sheave 10 to rotate. The rotation of the sheave 10 generates a back electromotive force in the motor 11. This suppresses the movement speed of the car 5.

After the brake device 13 is deactivated in S108, the control device 14 determines whether the speed of the cage 5 has exceeded a reference speed (S109). The reference speed is set in advance. The speed detection unit 46 detects the speed of the cage 5. The speed detection unit 46 detects the speed of the cage 5 based on a signal from the encoder 12. If the speed detected by the speed detection unit 46 exceeds the reference speed after the brake device 13 is deactivated in S108, a Yes result is returned in S109. If a Yes result is returned in S109, the hoist control unit 45 activates the brake device 13 (S111). This causes the cage 5 to stop.

In addition, after the brake device 13 is deactivated in S108, the control device 14 determines whether or not a stop request has been received from the monitoring device 15 (S110).

As shown in Figure 7, when the control device 64 sends the second signal to the monitoring device 15 in S305, it determines whether the stop button F has been pressed (S306). As one example, when the operator 3 confirms that an abnormal sound is occurring in the elevator device 1, he presses the stop button F (Yes in S306). As another example, when a passenger in the car 5 notifies the operator of an abnormality, the operator 3 presses the stop button F (Yes in S306). When the determination in S306 is Yes, a third signal is sent from the control device 64 to the elevator device 1 (S307).

As shown in FIG. 5, when the monitoring device 15 transmits a rescue request to the control device 14 in S204, it determines whether or not a third signal has been received from the information center 4 (S205). When the monitoring device 15 receives the third signal transmitted from the control device 64 in S307, it determines Yes in S205. If it determines Yes in S205, the request unit 52 transmits a stop request to the control device 14 (S206). The stop request may include the third signal. The request unit 52 may transfer the received third signal to the control device 14 as a stop request.

When the control device 14 receives the stop request transmitted from the request unit 52 in S206, a Yes is determined in S110. When a Yes is determined in S110, that is, when the elevator device 1 receives a third signal from the information center 4, the hoist control unit 45 operates the brake device 13 (S111). This causes the car 5 to stop.

After the brake device 13 is deactivated in S108, the control device 14 determines whether the car 5 is located in a specific rescue zone (S112). The rescue zone is set in advance. The position detection unit 47 detects that the car 5 is located in the rescue zone. The rescue zone may be the same as the landing zone. In such a case, the position detection unit 47 detects that the car 5 is located in the rescue zone based on the detection signal from the photoelectric sensor 32. After the brake device 13 is deactivated in S108, when the position detection unit 47 detects that the car 5 is located in the rescue zone, Yes is determined in S112. When Yes is determined in S112, the hoist control unit 45 activates the brake device 13 (S113). This causes the car 5 to stop.

When the car 5 stops due to the operation of the brake device 13 in S113, the door control unit 48 controls the motor 22 to open the door 21 (S114). This allows passengers to get off the car 5. Note that when the car 5 stops due to the operation of the brake device 13 in S111, the door control unit 48 does not open the door 21.

When the door 21 is opened in S114, the control device 14 determines whether or not the cage 5 is unoccupied (S115). The passenger detection unit 49 detects that the cage 5 is unoccupied. The passenger detection unit 49 may detect that the cage 5 is unoccupied based on the load measured by the weighing device 23. The passenger detection unit 49 may detect that the cage 5 is unoccupied based on an image captured by the camera 24. When the passenger detection unit 49 detects that the cage 5 is unoccupied after the door 21 is opened in S114, the rescue process ends (S116).

In S116, for example, door 21 is closed. After that, restart of the elevator is prohibited until a specific manual operation is performed by a maintenance worker who arrives at the scene. Also, in S116, a signal indicating that the rescue process has ended may be transmitted to information center 4. As a result, S207 is judged as Yes, and S308 is judged as Yes.

In the example shown in this embodiment, even if a specific failure occurs in the elevator device 1 such that the motor 11, such as the inverter or encoder 12, cannot drive the sheave 10, passengers trapped in the car 5 can be easily rescued by operating the brake device 13. There is no need for maintenance personnel to go to the site to rescue passengers. Furthermore, the operator 3 at the information center 4 is not required to have advanced skills.

In this embodiment, an example has been described in which the hoist control unit 45 suppresses the moving speed of the car 5 by enabling dynamic braking by the motor 11. As another example, the hoist control unit 45 may suppress the moving speed of the car 5 by performing brake torque control.

In such a case, the brake device 13 is configured to be able to change the force pressing the shoe against the rotating body depending on the voltage supplied. Instead of the processes shown in S107 and S108, the hoist control unit 45 controls the voltage supplied to the brake device 13 while deactivating the brake device 13 and moving the car 5. Then, when the hoist control unit 45 judges Yes in S112, it sets the voltage supplied to the brake device 13 to 0 and activates the brake device 13 (S113). This prevents the brake device 13 from rotating the sheave 10 and stops the car 5.

In this embodiment, an example has been described in which the door 21 automatically opens when the car 5 stops in S113 of Fig. 4. The door 5 may be opened in S114 by a manual operation by a passenger.

In this embodiment, the parts denoted by the reference numerals 41 to 49 indicate functions possessed by the control device 14. FIG. 8 is a diagram showing an example of hardware resources of the control device 14. The control device 14 is provided with a processing circuit 70 including a processor 71 and a memory 72 as hardware resources. The control device 14 realizes the functions of the parts denoted by the reference numerals 41 to 49 by executing a program stored in the memory 72 by the processor 71. A semiconductor memory or the like can be adopted as the memory 72.

Figure 9 is a diagram showing another example of hardware resources of the control device 14. In the example shown in Figure 9, the control device 14 has a processing circuit 70 including a processor 71, a memory 72, and dedicated hardware 73. Figure 9 shows an example in which some of the functions of the control device 14 are realized by the dedicated hardware 73. All of the functions of the control device 14 may be realized by the dedicated hardware 73. As the dedicated hardware 73, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination of these can be used.

The hardware resources of the monitoring device 15 are similar to those in the examples shown in Figures 8 and 9. The monitoring device 15 has a processing circuit including a processor and memory as its hardware resources. The monitoring device 15 realizes the functions of each part indicated by the reference numerals 51 to 52 by executing a program stored in the memory with the processor. The monitoring device 15 may have a processing circuit including a processor, memory, and dedicated hardware as its hardware resources. Some or all of the functions of the monitoring device 15 may be realized by dedicated hardware.

The hardware resources of the control device 64 are similar to the examples shown in FIG. 8 or FIG. 9. The control device 64 has a processing circuit including a processor and memory as hardware resources. The control device 64 realizes the various functions described above by executing a program stored in the memory with the processor. The control device 64 may have a processing circuit including a processor, memory, and dedicated hardware as hardware resources. Some or all of the functions of the control device 64 may be realized by dedicated hardware.

This disclosure is applicable to elevator systems equipped with a braking device that prevents rotation of the sheave.

1 elevator device, 2 network, 3 operator, 4 information center, 5 cage, 6 counterweight, 7 hoistway, 8 rope, 9 hoist, 10 sheave, 11 motor, 12 encoder, 13 brake device, 14 control device, 15 monitoring device, 16 machine room, 17 control cable, 21 door, 22 motor, 23 weighing device, 24 camera, 25 operation panel, 26 display, 27 intercom, 28 speaker, 29 button, 31 landing, 32 photoelectric sensor, 33 plate, 41 fault detection unit, 42 trapped-in detection unit, 43 processing execution unit, 44 notification control unit, 45 hoist control unit, 46 speed detection unit, 47 position detection unit, 48 Door control unit, 49 Passenger detection unit, 51 Transmission unit, 52 Request unit, 61 Communication device, 62 Display unit, 63 Input device, 64 Control device, 70 Processing circuit, 71 Processor, 72 Memory, 73 Dedicated hardware

Claims (7)

An elevator device;
an information center for managing the elevator device and having an operator;
Equipped with
The elevator device includes:
Basket,
A rope for suspending the cage;
A sheave around which the rope is wound;
A motor for driving the sheave;
a braking device that, when activated, prevents rotation of the sheave;
a first detection means for detecting a specific fault that prevents the motor from driving the sheave;
a second detection means for detecting when a passenger is trapped in the car;
a transmitting means for transmitting a specific first signal to the information center when the first detecting means detects the specific fault and the second detecting means detects a lock-in;
a process execution means for starting a rescue process when a second signal is received from the information center in response to the first signal;
a first control means for deactivating the brake device while enabling dynamic braking by the motor in the rescue process;
a third detection means for detecting that the car is located in a specific rescue zone including a stopping position of the landing;
Equipped with
the first control means, when the third detection means detects that the car has been placed in the rescue zone, operates the brake device ;
the information center includes a display and a control device;
an elevator system in which, when the control device receives the first signal, a mode for transmitting the second signal is added to the display as one of selectable rescue operation modes . 2. The elevator system according to claim 1, wherein the first control means, in the rescue processing, activates the braking device upon receiving a specific third signal from the information center after deactivating the braking device. The elevator apparatus further includes a second control means,
The cage is
A speaker and
an intercom for communicating with an operator at the information center;
Equipped with
3. The elevator system according to claim 2, wherein the second control means notifies the outside through the speaker before the first control means deactivates the brake device during the rescue process if it detects any abnormality . The elevator apparatus further includes a fourth detection means for detecting a speed of the car,
4. The elevator system according to claim 1, wherein, in the rescue processing, when the speed detected by the fourth detection means after deactivating the braking device exceeds a reference speed, the first control means activates the braking device . The elevator apparatus further includes a third control means,
the car includes a door;
5. The elevator system according to claim 1, wherein, in the rescue process, when the third detection means detects that the car has been placed in the rescue zone and thereby the brake device is operated, the third control means opens the doors. The elevator apparatus further includes a fifth detection means for detecting that the car is unoccupied,
6. The elevator system according to claim 5, wherein, in the rescue processing, when the fifth detection means detects that the car is unoccupied after the third control means opens the door, the first control means prohibits restart of the elevator until a specific manual operation is performed. An elevator device;
an information center for managing the elevator device and having an operator;
Equipped with
The elevator device includes:
Basket,
A rope for suspending the cage;
A sheave around which the rope is wound;
A motor for driving the sheave;
a brake device including a rotor that rotates in conjunction with the sheave and a shoe that comes into contact with and separates from the rotor, the brake device being capable of changing a force that presses the shoe against the rotor by a supplied voltage;
a first detection means for detecting a specific fault that prevents the motor from driving the sheave;
a second detection means for detecting when a passenger is trapped in the car;
a transmitting means for transmitting a specific first signal to the information center when the first detecting means detects the specific fault and the second detecting means detects a lock-in;
a process execution means for starting a rescue process when a second signal is received from the information center in response to the first signal;
a first control means for controlling a voltage supplied to the brake device in the rescue process to move the car;
a third detection means for detecting that the car is located in a specific rescue zone including a stopping position of the landing;
Equipped with
When the third detection means detects that the car has been placed in the rescue zone, the first control means prevents the sheave from rotating by the brake device ,
the information center includes a display and a control device;
an elevator system in which, when the control device receives the first signal, a mode for transmitting the second signal is added to the display as one of selectable rescue operation modes .

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