KR20230151106A - elevator device - Google Patents

Abstract

The elevator car 5 has a door 21 and a motor 22. When the door 21 is closed, the motor 22 applies force to the door 21 in the closing direction. The transmitting unit 51 transmits a first signal to the information center 4 where the operator 3 is located when the trapping detection unit 42 detects trapping while the photoelectric sensor 34 is detecting the plate 35. . When the blocking unit 45 receives the second signal from the information center 4 in response to the first signal, it cuts off the supply of power to the motor 22, thereby dissipating the force.

Description

elevator device

This disclosure relates to an elevator device.

Patent Document 1 describes an elevator device. In the elevator device described in Patent Document 1, when a passenger is trapped in an elevator car, a remote operator collects information from the passenger through an intercom in the car and performs necessary operations. For example, in Patent Document 1, it is described that a passenger in an elevator car is asked to press a door open button, and if the door does not open, the car is automatically judged whether it is in a specific zone and the power to control the elevator's drive system is cut off. It is done.

Japanese Patent Application Publication No. 2001-220075

In the elevator device described in Patent Document 1, a remote operator must collect information from passengers and then independently determine whether the elevator car is in a specific zone. For this reason, the burden on the operator is large. Additionally, in the elevator device, if the operator makes a mistake in judgment, the door of the elevator car is opened manually even if the car is not in the corresponding zone.

This disclosure was made to solve the problems described above. The purpose of the present disclosure is to provide an elevator device that can reduce the operator's burden when rescuing passengers trapped in an elevator car and can also enable the doors of the elevator car to be opened manually under appropriate circumstances.

An elevator device according to the present disclosure includes an elevator car having a first door and a motor for driving the first door, a sensor provided in the car and configured to detect a detection object arranged in accordance with the stopping position of the platform, and First detection means for detecting that a passenger is trapped in an elevator car, and transmission means for transmitting a specific first signal to an information center where an operator is located when the first detection means detects that the passenger is trapped while the sensor is detecting the object to be detected. And, a blocking means is provided. When the first door is closed, the motor applies force to the first door in a closing direction. When the blocking means receives a specific second signal from the information center in response to the first signal, it cuts off the supply of power to the motor, thereby dissipating the force.

An elevator device according to the present disclosure includes an elevator car having a first door, a motor for driving the first door, and a button for registering a call, a detector for detecting that the first door is open, and a call registered from the button. transmitting means for transmitting a specific first signal to an information center where an operator is located when the detector does not detect that the first door is open even after a certain period of time has elapsed after the elevator car stops on the platform in response to Have the means. When the first door is closed, the motor applies force to the first door in a closing direction. When the blocking means receives a specific second signal from the information center in response to the first signal, it cuts off the supply of power to the motor, thereby dissipating the force.

An elevator device according to the present disclosure includes an elevator car having a first door, a motor for driving the first door, and a button for registering a call, a second door provided on the platform, and detecting that the second door is open. After the elevator car stops on the platform in response to a call registered from the detector and the button, when the detector does not detect that the second door is open even after a certain period of time has elapsed, a specific first signal is sent to the information center where the operator is located. It is provided with a transmitting means for transmitting and a blocking means. When the first door is closed, the motor applies force to the first door in a closing direction. When the blocking means receives a specific second signal from the information center in response to the first signal, it cuts off the supply of power to the motor, thereby dissipating the force.

The elevator device according to the present disclosure can reduce the burden on the operator when rescuing passengers trapped in an elevator car. Additionally, under appropriate circumstances, the doors of the elevator car can be opened manually.

1 is a diagram showing an example of an elevator system.
Figure 2 is a diagram for explaining the functions of the control device and monitoring device.
Figure 3 is a flowchart showing an example of operation of the control device.
Figure 4 is a flowchart showing an example of operation of the monitoring device.
Figure 5 is a diagram for explaining the function of the information center.
Figure 6 is a flowchart showing an example of operation of the control device.
Figure 7 is a diagram showing an example of hardware resources of a control device.
Figure 8 is a diagram showing another example of hardware resources of a control device.

Below, detailed description is given with reference to the drawings. Overlapping explanations are appropriately simplified or omitted. In each drawing, like symbols represent like parts or equivalent parts.

Embodiment 1.

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 the 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 number of elevator units. The elevator device 1 is an example of an elevator device managed by the information center 4.

The elevator device (1) has an elevator car (5) and a counterweight (6). The elevator car (5) moves up and down the hoistway (7). The counterweight (6) moves up and down the hoistway (7). The elevator car 5 and the counterweight 6 are suspended from the hoistway 7 by a rope 8. The rope 8 is, for example, a wire rope.

The hoisting machine (9) drives the elevator car (5). The traction machine 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 traction machine 9. A rope 8 is wound around the sheave 10 and hung. The motor 11 generates a driving force to drive the sheave 10. That is, the motor 11 rotates the sheave 10. The encoder 12 outputs a signal according to the rotation angle of the sheave 10. The encoder 12 is for example a resolver. When the elevator device 1 is provided with a speed governor, the function of the encoder 12 may be provided to the governor. The brake device 13 is a device for keeping the sheave 10 stationary.

The hoisting machine (9) is controlled by the control device (14). That is, the movement of the elevator 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).

FIG. 1 shows an example in which the hoisting machine 9 and the control device 14 are installed in the machine room 16 above the hoistway 7. The hoisting machine 9 and the control device 14 may 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 may be installed in a pit of the hoistway 7.

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

The entrance and exit of the elevator car 5 is opened and closed by a door 21. The motor 22 generates a driving force to drive the door 21. When the door 21 is closed, the motor 22 applies force to the door 21 in the closing direction. The weighing device 23 measures the load of the elevator car 5. Figure 1 shows an example in which the weighing device 23 is provided at the lower part of the elevator car 5. The weighing device 23 may be provided at the end of the rope 8.

The operating panel 25 is provided with an indicator 26, an interphone 27, a speaker 28, and buttons 29. The intercom 27 is a device for passengers in the elevator car 5 to communicate with the operator 3 in the information center 4. The line through which the passenger in the elevator car 5 communicates with the operator 3 via the interphone 27 may be a different line from the line connected to the information center 4 through the monitoring device 15. The buttons 29 include a destination button for registering an elevator car call, an open button for opening the door 21, and a close button for closing the door 21. Button 29 may include other buttons.

A door 32 is provided on each platform 31 where the elevator car 5 stops. The entrance and exit of the platform 31 is opened and closed by a door 32. Additionally, a switch 33 is provided at each platform 31. The switch 33 is turned on when the door 32 is fully closed. The switch 33 is turned off when the door 32 is open. Switch 33 is an example of a detector that detects that door 32 is open.

No device for driving the door 32 is provided on each platform 31. For example, when the elevator car 5 stops at a certain platform 31, the door 21 faces the door 32 of that platform 31. The door 21 and the door 32 are provided with a device for transmitting the movement of the door 21 to the door 32 when they face each other. When the elevator car 5 is stopped on the platform 31, the door 32 is linked to the door 21. For this reason, when the elevator car 5 is stopped on the platform 31, the door 32 is driven by the motor 22 through the door 21.

The elevator device 1 is provided with a landing device for detecting that the elevator car 5 is placed in a specific landing zone Z. The landing zone (Z) is set in advance according to the height of each platform (31). In the following, if necessary, the landing zone set according to the height of the platform 31 on the N floor is referred to as the landing zone ZN. For example, the landing zone set according to the height of the platform 31 on the first floor is the landing zone Z1. The landing zone ZN includes a position (stop position) where the elevator car 5 stops on the platform 31 on the N floor. The stopping position of the platform 31 on the N floor is the position of the car 5 where the height of the floor surface of the platform 31 on the N floor and the floor surface of the car 5 are the same.

As an example, the implantation device includes a photoelectric sensor 34 and a plate 35. A photoelectric sensor 34 is provided in the elevator car 5. The plate 35 is provided in the hoistway 7. The plate 35 is arranged in accordance with the stopping position of each platform 31. For example, the range in which the photoelectric sensor 34 can detect the plate 35 arranged according to the height of the platform 31 on the N floor is the landing zone ZN. When the photoelectric sensor 34 detects the plate 35, a detection signal corresponding to the detected plate 35 is transmitted from the photoelectric sensor 34 to the control device 14. When the elevator car 5 is arranged in the landing zone ZN, the door 32 of the platform 31 on the N floor is linked to the door 21.

The plate 35 is an example of a detected object arranged in accordance with the stopping position of the platform 31. The photoelectric sensor 34 is an example of a sensor that detects the object to be detected. The elevator device 1 may be provided with a device for detecting that the elevator car 5 is placed in the landing zone by a method different from the above method.

FIG. 2 is a diagram for explaining the functions of the control device 14 and the monitoring device 15. As shown in FIG. 2, the control device 14 includes an operation control unit 41, a trapped detection unit 42, a processing execution unit 43, a notification control unit 44, a blocking unit 45, and a passenger detection unit 46. is provided. The monitoring device 15 includes a transmitting unit 51 and a requesting unit 52.

Below, with reference to FIGS. 3 to 6, the operation of this elevator system will be described in detail. FIG. 3 is a flowchart showing an example of operation of the control device 14.

In normal operation of the elevator, the control device 14 sequentially causes the elevator cars 5 to respond to registered calls. For example, when a button (not shown) is pressed on the platform 31 on the first floor, a platform call is registered. The operation control unit 41 stops the elevator car 5 at the platform 31 on the first floor and opens the door 21. As described above, when the elevator car 5 is stopped in the landing zone Z1, the door 32 on the first floor is opened along with the door 21. Thereby, passengers can get into the elevator car 5 from the platform 31.

In the control device 14, it is determined whether an elevator car call has been registered (S101). When the button 29 of the elevator car 5 is pressed, the elevator car call is registered (Yes in S101). For example, the passenger presses the destination button for the 5th floor within the elevator car 5. Thereby, the operation control unit 41 causes the elevator car 5 to respond to the registered car call (S102). That is, the operation control unit 41 moves the elevator car 5 toward the platform 31 on the 5th floor.

In the control device 14, it is determined whether the elevator car 5 is placed at the stop position of the platform 31 on the 5th floor (S103). When the elevator car 5 approaches the stopping position of the platform 31 on the 5th floor, the plate 35 arranged according to the height of the platform 31 on the 5th floor is detected by the photoelectric sensor 34. Based on the detection result of the photoelectric sensor 34, the operation control unit 41 determines that the elevator car 5 is placed at the stop position of the platform 31 on the 5th floor (Yes in S103). If it is determined as Yes in S103, the operation control unit 41 stops the elevator car 5 (S104).

Additionally, in the control device 14, it is determined whether a passenger is trapped in the elevator car 5 (S102). The fact that a passenger is trapped in the elevator car 5 is detected by the trapping detection unit 42 . The entrapment detection unit 42 may detect the entrapment of the passenger using the load measured by the scale device 23. The entrapment detection unit 42 may detect the entrapment of the passenger using the image captured by the camera 24.

As another example, when the elevator car 5 stops at the platform 31 at S104 in response to a registered elevator car call, the trapped detection unit 42 detects that the door 32 on that floor is open even after a certain period of time has elapsed. Locking may be detected when the switch 33 does not detect it. After the elevator car 5 stops at the platform 31 on the 5th floor in S104, if the switch 33 detects that the door 32 on the 5th floor is open before a certain time has elapsed, it determines No in S105. do. In this case, normal operation continues.

In S104, after the elevator car 5 stops at the platform 31 on the 5th floor, if the switch 33 does not detect that the door 32 on the 5th floor is open even after a certain period of time has elapsed, the trapped detection unit 42 Detects trapping (Yes in S105). For example, in the elevator car 5, a board for controlling the doors 21 is provided. If the corresponding board fails, it is determined as Yes in S105. As another example, if a passenger mistakenly operates a switch that prohibits stopping on a specific floor within the elevator car 5, it is determined as Yes in S105.

As in the above example, if the entrapment detection unit 42 detects entrapment while the photoelectric sensor 34 is detecting the plate 35, it is determined as Yes in S105. If it is determined as Yes in S105, an alert issuance request is transmitted from the control device 14 to the monitoring device 15 (S106).

FIG. 4 is a flowchart showing an example of operation of the monitoring device 15. The monitoring device 15 determines whether or not an alert issuance request has been received from the control device 14 (S201). When the monitoring device 15 receives the alarm issuance request transmitted from the control device 14 in S106, it determines Yes in S201. If it is determined as Yes in S201, that is, if it is determined as Yes in S105, the transmitter 51 transmits a specific first signal to the information center 4 (S202).

Figure 5 is a diagram for explaining the function of the information center 4. The information center 4 is equipped with a communication device 61, an indicator 62, an input device 63, and a control device 64.

The communication device 61 is a device for the operator 3 in the information center 4 to communicate with the passengers in the elevator car 5. The operator 3 communicates with the passenger in the elevator car 5 using the communication device 61 and operates the input device 63 while looking at the indicator 62. As an example, input device 63 includes a keyboard and mouse. As the input device 63, another device may be provided.

In the example shown in Fig. 5, an image (A), an image (B), a mode selection field (C), a confirmation field (D), and an execution button (E) are displayed on the display 62.

Image A is an image captured by the camera 24. The operator 3 can know the state inside the elevator car 5 by looking at the image A. Image B is the image displayed on the indicator 26. By viewing the image B, the operator 3 can know the image that the passenger in the elevator car 5 is viewing.

In the mode selection box (C), selectable rescue operation modes are displayed. The operator 3 can select one of the rescue operation modes by operating the input device 63. The confirmation item field (D) displays items that the operator 3 must confirm when executing the selected rescue operation mode. The execution button (E) is a button that the operator (3) presses to execute the selected rescue operation mode.

FIG. 6 is a flowchart showing an example of operation of the control device 64. In the control device 64, it is determined whether or not the 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, it is determined as Yes in S301.

If it is determined as Yes in S301, the control device 64 adds “door closing force release” as one of the selectable rescue operation modes (S302). Then, the control device 64 determines whether “door closing force release” has been selected (S303). The operator 3 operates the pull-down displayed in the mode selection field C to select “door closing force release.” Due to this, it is determined as Yes in S303.

In addition, if the control device 64 is not receiving the corresponding first signal from the elevator device 1, “door closing force release” is not displayed in the mode selection field (C), or “door closing force release” cannot be selected. It is displayed as unavailable. In the mode selection field C, “door closing force release” can be selected when the control device 64 receives the corresponding first signal.

If Yes is determined in S303, the control device 64 determines whether the execution button E has been pressed (S304). The operator 3 reads the contents displayed in the confirmation field (D), performs the necessary actions, and then presses the execution button (E) (Yes in S304). For example, the operator 3 conveys the following information to the passengers in the elevator car 5 before pressing the execution button E.

· From now on, the door will be opened by hand.

· Do not hang up the call until instructed to do so.

· There may be a step when getting off the elevator car.

· If there are people in the elevator car, urge them to get off.

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

As shown in Fig. 4, when the monitoring device 15 transmits the first signal to the information center 4 in S202, it is determined whether or not the 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 is determined as Yes in S203. For example, if there is no record of transmitting the first signal in S202, it is not determined as Yes in S203 even if the second signal is received from the control device 64. As an example, even if the second signal is received from the control device 64, if the transmitter 51 is not transmitting the first signal at a certain time immediately before receiving the second signal, the result is not determined as Yes in S203. If it is determined as Yes in S203, the request unit 52 transmits a rescue request to the control device 14 (S204). The rescue request may include a second signal. The request unit 52 may transmit the received second signal to the control device 14 as a rescue request.

As shown in Fig. 3, when the control device 14 transmits an alert issuance request to the monitoring device 15 in S106, it is determined whether or not a rescue request has been received from the monitoring device 15 (S107). When the control device 14 receives the rescue request transmitted from the request unit 52 in S204, it determines Yes in S107. If it is determined to be Yes in S107, that is, if the elevator device 1 receives the second signal from the information center 4 as a response to the first signal, the processing execution unit 43 starts rescue processing (S108).

In the rescue process, first, the notification control unit 44 provides voice guidance to the passenger from the speaker 28 (S109). As an example, in S109, when an abnormality is detected, the notification control unit 44 notifies the outside world through the speaker 28. The notification control unit 44 may notify the speaker 28 to leave the door 21 in S109. The notification control unit 44 may announce other content from the speaker 28 in S109. After the voice guidance ends, the notification control unit 44 may generate a warning sound from the speaker 28.

When the voice guidance of S109 ends, the cutoff unit 45 blocks the supply of power to the motor 22. For example, the blocking unit 45 performs base blocking on the inverter of the motor 22 (S110). As described above, the motor 22 applies force to the door 21 in the closing direction when the door 21 is closed. In the following, this force is also referred to as door closing force. The blocking unit 45 dissipates the door closing force by performing base blocking in S110.

When base blocking is performed in S110, the notification control unit 44 provides voice guidance to the passenger from the speaker 28 (S111). As an example, the notification control unit 44 notifies the speaker 28 that the door 21 has been opened by hand in S111. The notification control unit 44 may announce other content from the speaker 28 in S111.

When voice guidance is given in S111, the control device 14 determines whether the elevator car 5 is unmanned (S112). The passenger detection unit 46 detects that the elevator car 5 is unmanned. The passenger detection unit 46 may detect that the elevator car 5 is unmanned based on the load measured by the scale device 23. The passenger detection unit 46 may detect that the elevator car 5 is unmanned based on the image captured by the camera 24. After the voice guidance is given in S111, when the passenger detection unit 46 detects that the elevator car 5 is unmanned, the rescue process ends (S113).

In S113, restarting the elevator is prohibited until certain manual operations are performed, for example by maintenance personnel arriving on site. In S113, a signal indicating that the rescue processing has ended may be transmitted to the information center 4.

In the example shown in this embodiment, even if a failure occurs in the board for the door 21 or the like in the elevator device 1, passengers trapped in the elevator car 5 can be easily rescued. At this time, it is not necessary for the remote operator 3 to determine whether power supply to the motor 22 can be cut off solely on its own responsibility. For this reason, the burden on the operator 3 can be reduced. Additionally, the cutoff unit 45 does not block the power supply to the motor 22 unless it receives the second signal as a response to the first signal. For this reason, under appropriate circumstances, the door 21 can be opened manually.

In this embodiment, the first signal is transmitted from the elevator device 1 to the information center 4 using the switch 33 for detecting that the door 32 of the platform 31 is open. explained. As another example, the first signal may be transmitted using the switch 30 provided in the elevator car 5.

The switch 30 is turned on when the door 21 is fully closed. The switch 30 is turned off when the door 21 is open. Switch 30 is an example of a detector that detects that door 21 is open. When the elevator car 5 stops at the platform 31 in S104 in response to a registered elevator car call, the trapped detection unit 42 detects the switch 30 that the door 21 is open even after a certain period of time has elapsed. In cases where this is not done, trapping may be detected. If the switch 30 detects that the door 21 is open before a certain period of time elapses after the elevator car 5 stops at the platform 31 in S104, it is determined as No in S105. If it is determined as Yes in S105, an alarm issuance request is transmitted from the control device 14 to the monitoring device 15 (S106).

In this embodiment, each part indicated by numerals 41 to 46 represents a function of the control device 14. FIG. 7 is a diagram showing an example of hardware resources of the control device 14. The control device 14 includes a processing circuit 70 including a processor 71 and a memory 72 as hardware resources. The control device 14 executes the program stored in the memory 72 by the processor 71, thereby realizing the functions of each part indicated by symbols 41 to 46. As the memory 72, a semiconductor memory or the like can be employed.

FIG. 8 is a diagram showing another example of hardware resources of the control device 14. In the example shown in FIG. 8 , the control device 14 includes a processing circuit 70 including a processor 71, a memory 72, and dedicated hardware 73. FIG. 8 shows an example in which part of the functions of the control device 14 are realized by dedicated hardware 73. All of the functions of the control device 14 may be realized by dedicated hardware 73. As dedicated hardware 73, a single circuit, complex circuit, programmed processor, parallel programmed processor, ASIC, FPGA, or a combination thereof may be employed.

In addition, the hardware resources of the monitoring device 15 are the same as the examples shown in FIG. 8 or FIG. 9. The monitoring device 15 has a processing circuit including a processor and memory as hardware resources. The monitoring device 15 realizes the functions of each part indicated by symbols 51 to 52 by executing the program stored in the memory using a processor. The monitoring device 15 may be provided with a processing circuit including a processor, memory, and dedicated hardware as 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 the same as the example shown in FIG. 7 or FIG. 8. 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 the program stored in the memory using a processor. The control device 64 may be provided with 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.

The elevator device according to the present disclosure can be applied to an elevator device provided with a motor that drives the doors of an elevator car.

1: Elevator device 2: Network
3: Operator 4: Information Center
5: Elevator car 6: Counterweight
7: hoistway 8: rope
9: Hoisting machine 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: scale device
24: Camera 25: Control panel
26: indicator 27: interphone
28: Speaker 29: Button
30: Switch 31: Platform
32: door 33: switch
34: photoelectric sensor 35: plate
41: operation control unit 42: trapped detection unit
43: Processing execution unit 44: Notification control unit
45: blocking unit 46: passenger detection unit
51: transmitting unit 52: requesting unit
61: call device 62: indicator
63: input device 64: control device
70: processing circuit 71: processor
72: Memory 73: Dedicated hardware

Claims (6)

an elevator car having a first door and a motor for driving the first door;
A sensor provided in the elevator car for detecting an object to be detected and arranged in accordance with the stopping position of the platform,
first detection means for detecting that a passenger is trapped in the elevator car;
transmitting means for transmitting a specific first signal to an information center where an operator is located when the first detecting means detects trapping while the sensor is detecting the object to be detected;
Equipped with blocking means,
When the first door is closed, the motor applies force to the first door in a closing direction,
The elevator device wherein the blocking means blocks the supply of power to the motor and dissipates the power when receiving a specific second signal from the information center in response to the first signal. an elevator car having a first door, a motor for driving the first door, and a button for registering a call;
a detector that detects that the first door is open;
After the elevator car stops on the platform in response to a call registered from the button, when the detector does not detect that the first door is open even after a certain period of time has elapsed, a specific first door is sent to the information center where the operator is located. Transmitting means for transmitting a signal,
Equipped with blocking means,
When the first door is closed, the motor applies force to the first door in a closing direction,
The elevator device wherein the blocking means blocks the supply of power to the motor and dissipates the power when receiving a specific second signal from the information center in response to the first signal. an elevator car having a first door, a motor for driving the first door, and a button for registering a call;
A second door provided on the platform,
a detector that detects that the second door is open;
When the detector does not detect that the second door is open even after a certain period of time has elapsed after the elevator car stops on the platform in response to a call registered from the button, the information center where the operator is located is sent a specific device. 1 transmitting means for transmitting a signal,
Equipped with blocking means,
When the first door is closed, the motor applies force to the first door in a closing direction,
The elevator device wherein the blocking means blocks the supply of power to the motor and dissipates the power when receiving a specific second signal from the information center in response to the first signal. The method according to any one of claims 1 to 3,
The blocking means supplies power to the motor even if the second signal is received from the information center, if the transmitting means is not transmitting the first signal at a certain time immediately before receiving the second signal. Elevator equipment that does not block. The method according to any one of claims 1 to 4,
further comprising control means,
The elevator car is equipped with a speaker,
The elevator device wherein the control means notifies the speaker that the first door has been opened by hand when the blocking means cuts off the supply of power to the motor according to the second signal. In claim 5,
further comprising second detection means for detecting that the elevator car is unmanned,
If the second detection means detects that the elevator car is unmanned after a notification is made from the speaker that the first door has been opened by hand, a restart of the elevator is prohibited until a specific manual operation is performed.

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