EP3915920A1 - A rescue apparatus and an elevator - Google Patents
A rescue apparatus and an elevator Download PDFInfo
- Publication number
- EP3915920A1 EP3915920A1 EP21175227.4A EP21175227A EP3915920A1 EP 3915920 A1 EP3915920 A1 EP 3915920A1 EP 21175227 A EP21175227 A EP 21175227A EP 3915920 A1 EP3915920 A1 EP 3915920A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator
- rescue device
- emergency rescue
- power unit
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
Definitions
- the subject matter described herein relates to elevators and in particular to elevator rescue devices.
- an operational anomaly such as a power failure interrupts elevator travel, causing stopping of elevator car between landings. In that case elevator car needs to be relocated to a landing to release passengers from the car. This operation is referred to as rescue operation.
- hoisting motor and / or hoisting machinery brakes may be energized by a battery-operated emergency rescue device to move the car.
- emergency rescue device In machine-room less elevators emergency rescue device is usually disposed inside an elevator shaft, for example in upper part of the shaft, close to the elevator hoisting machinery. In that case the rescue device is not easily accessible. In case of a failure, service person must enter elevator shaft and try to debug the rescue device for example from elevator car roof.
- the objective of the present invention is to solve at least partially the above-identified problems. Therefore the invention discloses an elevator according to claim 1. Some preferred embodiments of the invention are described in the dependent claims. Some inventive embodiments, as well as inventive combinations of various embodiments, are presented in the description and in the drawings.
- an elevator comprising an elevator car vertically movable in an elevator shaft, an elevator hoisting machinery disposed in the elevator shaft, an emergency rescue device disposed in the elevator shaft, an elevator controller disposed at an elevator landing and a communication channel between the elevator controller and the emergency rescue device.
- the emergency rescue device comprises a battery acting as a voltage supply of the emergency rescue device during an operational anomaly of the elevator and a power unit connected to the battery and configured for energizing at least one of elevator hoisting motor and hoisting machinery brakes to relocate the elevator car during an operational anomaly of the elevator.
- the emergency rescue device further comprises a sensor array comprising at least one sensor configured for measuring one or more operational parameters of the emergency rescue device and a processing unit connected to the sensor array and configured to generate a rescue device performance indicator based on the information received from sensor array and to send the performance indicator to the elevator controller. This means that debugging of the emergency rescue device may be performed from a landing, outside of the elevator shaft.
- the elevator controller is disposed next to a landing door or inside a landing door frame.
- the emergency rescue device comprises a contactor for separating the emergency rescue device from the mains.
- the operational parameter of the emergency rescue device is one of contactor status, status of a power transistor of the power unit, temperature of the power unit, battery current, battery voltage, battery power, output voltage of the power unit, output current of the power unit, phase failure of the power unit.
- the elevator controller is configured to display a fault code based on the performance indicator.
- the elevator controller may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information.
- the elevator controller comprises a manual input for receiving a debug command.
- the elevator controller is configured to send an energizing command to the power unit responsive to receiving a debug command. This can mean that debug commands for emergency rescue device can be provided from a landing, outside of elevator shaft.
- the elevator controller comprises a remote connection to a cloud or to a remote server.
- the elevator controller is configured to send the performance indicator to a cloud or a remote server via a remote connection.
- the cloud or remote server may perform computing operations based on a performance indicator or a sequence of performance indicators to diagnose degraded condition and schedule a service request before failure of the emergency rescue device.
- degraded condition of the emergency rescue device may be diagnosed early and adequate service may be provided to minimize elevator downtime.
- the elevator controller is configured to receive a fault code or maintenance instruction as a response from the cloud or remote server, and to display said fault code or maintenance instruction received. Therefore elevator may be diagnosed remotely in the remote server or in the cloud on the basis of the performance indicators, and the diagnostics result may be utilized by service personnel on elevator site.
- Fig. 1 shows an elevator according to an exemplary embodiment.
- Elevator comprises an elevator car 1 and a counterweight (not shown) suspended on hoisting ropes.
- Hoisting ropes run via a traction sheave of an elevator hoisting machinery 9.
- Hoisting machinery 9 has electrical motor 19, preferably a permanent magnet motor, which provides driving torque to move the elevator car 1.
- Power signals for operating the electrical motor 19 are generated by the inverter 18.
- Hoisting machinery 9 comprises brakes 10, which are controlled by an actuator, such as an electromagnetic actuator. Brakes 10 are engaged to hold elevator car 1 standstill in elevator shaft and opened to enable elevator car 1 movement. Opening of the brakes 10 takes place by supplying electrical power to the actuators. Brakes 10 are engaged by interrupting the power supply. In normal operation, electrical power for the motor 19 and the brakes 10 is supplied from mains. Control commands for operating the elevator are generated by an elevator controller 3.
- the elevator of Fig. 1 comprises an emergency rescue device 2.
- the emergency rescue device 2, as well as the elevator hoisting machinery 9 and the inverter 18 are disposed in upper portion of elevator shaft 4. Elevator controller 3 is disposed at an elevator landing 5.
- a communication channel 6 is arranged between the elevator controller 3 and the emergency rescue device 2.
- Communication channel 6 may be in the form of any suitable wired or wireless communication bus, such as serial data bus or parallel data bus. Exemplary embodiments of the communication bus are CAN bus, LON bus and ethernet bus.
- control commands and / or debug commands may be provided from the elevator controller 3 to the emergency rescue device 2.
- performance information of the rescue device 2 may be provided from the energy rescue device 2 to the elevator controller 3 via the communication channel 6 such that debugging and / or condition monitoring of the emergency rescue device 2 may be performed from outside of the elevator shaft 4.
- the emergency rescue device 2 comprises a battery 7, which provides voltage supply for the electronics of the emergency rescue device 2 as well as power supply to the hoisting motor 19 and / or the hoisting machinery brakes 10 during specific operational anomalies of the elevator.
- the emergency rescue device 2 of Fig. 1 comprises a power unit 8 connected to the battery 7.
- Power unit 8 comprises power components, such as contactor and power transistors.
- the emergency rescue device 2 further comprises a sensor array 11 and a processing unit 12 connected to the sensor array 11.
- the sensor array 11 comprises at least one sensor configured for measuring one or more operational parameters of the emergency rescue device 2.
- Sensor may be an auxiliary contact of the contactor 17, indicating contactor 17 status, i.e. actual open or closed state.
- Sensor may be voltage or current meter indicating status of power transistor of the power unit 8 (e.g. to determine transistor failure or short circuit)
- Sensor may be a temperature sensor indicating temperature of the power unit 8 and / or the battery 7 (e.g.
- Sensor may be a voltage or current meter indicating voltage or current of the battery 7 (e.g. to determine possible over - or undervoltage of the battery 7 under load condition or in an overcurrent situation), or a power meter indicating output power of the battery 7 (e.g. power supply capability of the battery 7). Additionally or alternatively, the sensor may be a voltage or current meter indicating output voltage or current of the power unit 8 or- if the power unit has a multi-phase AC output - a phase failure of the power unit 8.
- the processing unit 12 is configured to generate a rescue device performance indicator based on the information received from sensor array 11 and addressing at least some of the above-identified defects. Further, processing unit 12 is configured to send the performance indicator to the elevator controller 3.
- the elevator controller 3 may be configured to display a fault code based on the performance indicator.
- the elevator controller 3 may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information.
- the drive unit of elevator hoisting machinery (e.g. motor inverter 18 and brake control unit) is part of the emergency rescue device 2.
- the drive unit is configured for providing electrical power to hoisting machinery brakes 10 and motor 19 from the battery 7 when an operational anomaly is determined.
- the emergency rescue device 2 may comprise a contactor 17 or a relay for separating the drive unit from mains and connecting with the battery 7 in case of an operational anomaly.
- the emergency rescue device 2 is a separate unit from the drive unit.
- the elevator controller 3 comprises a remote connection 15 to a cloud or to a remote server 16.
- Such remote connection may be an internet connection via a router, or a wireless cellular network.
- the elevator controller 3 is configured to send a performance indicator or a sequence of performance indicators to a cloud or to a remote server 16 via a remote connection 15, to diagnose degraded operating condition and to schedule a service request before failure of the emergency rescue device 2. This way availability of the elevator service may be improved.
- the elevator controller 3 is configured to receive a related fault code or maintenance instruction as a response from the cloud or remote server 16, and to display said fault code or maintenance instruction received to facilitate debugging work of the service personnel.
- the elevator controller 3 comprises a manual input 14, such as touchscreen, a button set or a keyboard, for receiving a debug command.
- the elevator controller 3 is configured to send an energizing command to the power stage 8 responsive to receiving a debug command. This way operation of the emergency rescue device 2 may be tested.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
- The subject matter described herein relates to elevators and in particular to elevator rescue devices.
- Sometimes an operational anomaly, such as a power failure interrupts elevator travel, causing stopping of elevator car between landings. In that case elevator car needs to be relocated to a landing to release passengers from the car. This operation is referred to as rescue operation.
- In rescue operation, hoisting motor and / or hoisting machinery brakes may be energized by a battery-operated emergency rescue device to move the car. In machine-room less elevators emergency rescue device is usually disposed inside an elevator shaft, for example in upper part of the shaft, close to the elevator hoisting machinery. In that case the rescue device is not easily accessible. In case of a failure, service person must enter elevator shaft and try to debug the rescue device for example from elevator car roof.
- The objective of the present invention is to solve at least partially the above-identified problems. Therefore the invention discloses an elevator according to
claim 1. Some preferred embodiments of the invention are described in the dependent claims. Some inventive embodiments, as well as inventive combinations of various embodiments, are presented in the description and in the drawings. - According to the invention, an elevator is provided. The elevator comprises an elevator car vertically movable in an elevator shaft, an elevator hoisting machinery disposed in the elevator shaft, an emergency rescue device disposed in the elevator shaft, an elevator controller disposed at an elevator landing and a communication channel between the elevator controller and the emergency rescue device. The emergency rescue device comprises a battery acting as a voltage supply of the emergency rescue device during an operational anomaly of the elevator and a power unit connected to the battery and configured for energizing at least one of elevator hoisting motor and hoisting machinery brakes to relocate the elevator car during an operational anomaly of the elevator. The emergency rescue device further comprises a sensor array comprising at least one sensor configured for measuring one or more operational parameters of the emergency rescue device and a processing unit connected to the sensor array and configured to generate a rescue device performance indicator based on the information received from sensor array and to send the performance indicator to the elevator controller. This means that debugging of the emergency rescue device may be performed from a landing, outside of the elevator shaft.
- Preferably, the elevator controller is disposed next to a landing door or inside a landing door frame.
- According to an embodiment, the emergency rescue device comprises a contactor for separating the emergency rescue device from the mains. The operational parameter of the emergency rescue device is one of contactor status, status of a power transistor of the power unit, temperature of the power unit, battery current, battery voltage, battery power, output voltage of the power unit, output current of the power unit, phase failure of the power unit.
- According to an embodiment, the elevator controller is configured to display a fault code based on the performance indicator. Thus the elevator controller may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information.
- According to an embodiment, the elevator controller comprises a manual input for receiving a debug command. The elevator controller is configured to send an energizing command to the power unit responsive to receiving a debug command. This can mean that debug commands for emergency rescue device can be provided from a landing, outside of elevator shaft.
- According to an embodiment the elevator controller comprises a remote connection to a cloud or to a remote server.
- According to a refinement, the elevator controller is configured to send the performance indicator to a cloud or a remote server via a remote connection. The cloud or remote server may perform computing operations based on a performance indicator or a sequence of performance indicators to diagnose degraded condition and schedule a service request before failure of the emergency rescue device. Thus degraded condition of the emergency rescue device may be diagnosed early and adequate service may be provided to minimize elevator downtime.
- According to another refinement, the elevator controller is configured to receive a fault code or maintenance instruction as a response from the cloud or remote server, and to display said fault code or maintenance instruction received. Therefore elevator may be diagnosed remotely in the remote server or in the cloud on the basis of the performance indicators, and the diagnostics result may be utilized by service personnel on elevator site.
- In the following, the invention will be described in more detail by the aid of some examples of its embodiments, which in themselves do not limit the scope of application of the invention, with reference to the attached drawings, wherein
- Fig. 1
- shows a schematic view of an elevator.
- Fig. 2
- shows a block diagram of an emergency rescue device.
- For the sake of intelligibility, in
figs 1 and2 only those features are represented which are deemed necessary for understanding the invention. Therefore, for instance, certain components / functions which are widely known to be present in the art may not be represented. -
Fig. 1 shows an elevator according to an exemplary embodiment. Elevator comprises anelevator car 1 and a counterweight (not shown) suspended on hoisting ropes. Hoisting ropes run via a traction sheave of an elevator hoistingmachinery 9.Hoisting machinery 9 has electrical motor 19, preferably a permanent magnet motor, which provides driving torque to move theelevator car 1. Power signals for operating the electrical motor 19 are generated by theinverter 18.Hoisting machinery 9 comprisesbrakes 10, which are controlled by an actuator, such as an electromagnetic actuator.Brakes 10 are engaged to holdelevator car 1 standstill in elevator shaft and opened to enableelevator car 1 movement. Opening of thebrakes 10 takes place by supplying electrical power to the actuators.Brakes 10 are engaged by interrupting the power supply. In normal operation, electrical power for the motor 19 and thebrakes 10 is supplied from mains. Control commands for operating the elevator are generated by anelevator controller 3. - In some abnormal situations, such as during power failure, there is a need to relocate
elevator car 1 to alanding 5. Therefore, the elevator ofFig. 1 comprises anemergency rescue device 2. - The
emergency rescue device 2, as well as the elevator hoistingmachinery 9 and theinverter 18 are disposed in upper portion ofelevator shaft 4.Elevator controller 3 is disposed at anelevator landing 5. Acommunication channel 6 is arranged between theelevator controller 3 and theemergency rescue device 2.Communication channel 6 may be in the form of any suitable wired or wireless communication bus, such as serial data bus or parallel data bus. Exemplary embodiments of the communication bus are CAN bus, LON bus and ethernet bus. Via thecommunication channel 6, control commands and / or debug commands may be provided from theelevator controller 3 to theemergency rescue device 2. Further, performance information of therescue device 2 may be provided from theenergy rescue device 2 to theelevator controller 3 via thecommunication channel 6 such that debugging and / or condition monitoring of theemergency rescue device 2 may be performed from outside of theelevator shaft 4. - The
emergency rescue device 2 comprises abattery 7, which provides voltage supply for the electronics of theemergency rescue device 2 as well as power supply to the hoisting motor 19 and / or the hoistingmachinery brakes 10 during specific operational anomalies of the elevator. - Turning to
Fig. 2 , theemergency rescue device 2 ofFig. 1 comprises apower unit 8 connected to thebattery 7.Power unit 8 comprises power components, such as contactor and power transistors. Theemergency rescue device 2 further comprises asensor array 11 and aprocessing unit 12 connected to thesensor array 11. Thesensor array 11 comprises at least one sensor configured for measuring one or more operational parameters of theemergency rescue device 2. Sensor may be an auxiliary contact of thecontactor 17, indicatingcontactor 17 status, i.e. actual open or closed state. Sensor may be voltage or current meter indicating status of power transistor of the power unit 8 (e.g. to determine transistor failure or short circuit) Sensor may be a temperature sensor indicating temperature of thepower unit 8 and / or the battery 7 (e.g. to determine possible overtemperature of the power unit and / or the battery). Sensor may be a voltage or current meter indicating voltage or current of the battery 7 (e.g. to determine possible over - or undervoltage of thebattery 7 under load condition or in an overcurrent situation), or a power meter indicating output power of the battery 7 (e.g. power supply capability of the battery 7). Additionally or alternatively, the sensor may be a voltage or current meter indicating output voltage or current of thepower unit 8 or- if the power unit has a multi-phase AC output - a phase failure of thepower unit 8. - The
processing unit 12 is configured to generate a rescue device performance indicator based on the information received fromsensor array 11 and addressing at least some of the above-identified defects. Further, processingunit 12 is configured to send the performance indicator to theelevator controller 3. Theelevator controller 3 may be configured to display a fault code based on the performance indicator. Theelevator controller 3 may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information. - According to an embodiment, the drive unit of elevator hoisting machinery (
e.g. motor inverter 18 and brake control unit) is part of theemergency rescue device 2. In particular, the drive unit is configured for providing electrical power to hoistingmachinery brakes 10 and motor 19 from thebattery 7 when an operational anomaly is determined. Thus theemergency rescue device 2 may comprise acontactor 17 or a relay for separating the drive unit from mains and connecting with thebattery 7 in case of an operational anomaly. - According to an alternative embodiment, the
emergency rescue device 2 is a separate unit from the drive unit. - According to a refinement, the
elevator controller 3 comprises aremote connection 15 to a cloud or to aremote server 16. Such remote connection may be an internet connection via a router, or a wireless cellular network. Theelevator controller 3 is configured to send a performance indicator or a sequence of performance indicators to a cloud or to aremote server 16 via aremote connection 15, to diagnose degraded operating condition and to schedule a service request before failure of theemergency rescue device 2. This way availability of the elevator service may be improved. - According to an embodiment, the
elevator controller 3 is configured to receive a related fault code or maintenance instruction as a response from the cloud orremote server 16, and to display said fault code or maintenance instruction received to facilitate debugging work of the service personnel. - According to a refinement, the
elevator controller 3 comprises amanual input 14, such as touchscreen, a button set or a keyboard, for receiving a debug command. Theelevator controller 3 is configured to send an energizing command to thepower stage 8 responsive to receiving a debug command. This way operation of theemergency rescue device 2 may be tested. - The invention is described above by the aid of exemplary embodiments. It is obvious to a person skilled in the art that the invention is not limited to the embodiments described above and many other applications are possible within the scope of the inventive concept defined by the claims.
Claims (7)
- An elevator, comprising:an elevator car (1) vertically movable in an elevator shaft (4);an elevator hoisting machinery (9) disposed in the elevator shaft (4);an emergency rescue device (2) disposed in the elevator shaft (4);an elevator controller (3) disposed at an elevator landing (5);a communication channel (6) between the elevator controller (3) and the emergency rescue device (2);wherein the emergency rescue device (2) comprises:a battery (7) acting as a voltage supply of the emergency rescue device (2) during an operational anomaly of the elevator;a power unit (8) connected to the battery (7) and configured for energizing at least one of elevator hoisting motor (19) and hoisting machinery brakes (10) to relocate the elevator car (1) to a landing (5) during an operational anomaly of the elevator;a sensor array (11) comprising at least one sensor configured for measuring one ormore operational parameters of the emergency rescue device (2);a processing unit (12) connected to the sensor array (11) and configured to generate a rescue device performance indicator based on the information received from sensor array (11) andto send the performance indicator to the elevator controller (3).
- The elevator according to claim 1, wherein the emergency rescue device comprises a contactor (17) for separating the emergency rescue device (2) from the mains, and the operational parameter of the emergency rescue device (2) is one of contactor status, status of a power transistor of the power unit (8), temperature of the power unit (8), battery current, battery voltage, battery power, output voltage of the power unit (8), output current of the power unit (8), phase failure of the power unit (8).
- The elevator according to claim 1 or 2, wherein the elevator controller (3) is configured to display a fault code based on the performance indicator.
- The elevator according to any of the preceding claims, wherein the elevator controller comprises a manual input (14) for receiving a debug command,
and wherein the elevator controller (3) is configured to send an energizing command to the power unit (8) responsive to receiving a debug command. - The elevator according to any of the preceding claims, wherein the elevator controller (3) comprises a remote connection (15) to a cloud or to a remote server (16).
- The elevator according to claim 5, wherein the elevator controller (3) is configured to send a performance indicator or a sequence of performance indicators to a cloud or a remote server (16) via a remote connection (15) to schedule a service request before failure of the emergency rescue device (2).
- The elevator according to claim 5 or 6, wherein the elevator controller (3) is configured to receive a fault code or maintenance instruction as a response from the cloud or remote server (16), and to display said fault code or maintenance instruction received.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN202031021796 | 2020-05-24 |
Publications (2)
Publication Number | Publication Date |
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EP3915920A1 true EP3915920A1 (en) | 2021-12-01 |
EP3915920B1 EP3915920B1 (en) | 2023-11-22 |
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ID=76059708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21175227.4A Active EP3915920B1 (en) | 2020-05-24 | 2021-05-21 | A rescue apparatus and an elevator |
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EP (1) | EP3915920B1 (en) |
CN (1) | CN113716419A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023126047A1 (en) * | 2021-12-27 | 2023-07-06 | Kone Corporation | Elevator arrangement and method of operating elevator |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107055230A (en) * | 2017-03-10 | 2017-08-18 | 黄宸 | A kind of elevator fire rescue and routine use energy conserving system and the System Utilization Procedure |
EP3290375A1 (en) * | 2016-08-29 | 2018-03-07 | KONE Corporation | Elevator |
US20190248626A1 (en) * | 2018-02-13 | 2019-08-15 | Kone Corporation | Elevator |
KR102034016B1 (en) * | 2018-08-16 | 2019-10-18 | 세라에스이 주식회사 | Advanced automatic rescue device |
CN110356943A (en) * | 2019-06-24 | 2019-10-22 | 苏州汇川技术有限公司 | Elevator control system and vertical ladder deliverance apparatus |
-
2021
- 2021-04-22 CN CN202110439146.6A patent/CN113716419A/en active Pending
- 2021-05-21 EP EP21175227.4A patent/EP3915920B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3290375A1 (en) * | 2016-08-29 | 2018-03-07 | KONE Corporation | Elevator |
CN107055230A (en) * | 2017-03-10 | 2017-08-18 | 黄宸 | A kind of elevator fire rescue and routine use energy conserving system and the System Utilization Procedure |
US20190248626A1 (en) * | 2018-02-13 | 2019-08-15 | Kone Corporation | Elevator |
KR102034016B1 (en) * | 2018-08-16 | 2019-10-18 | 세라에스이 주식회사 | Advanced automatic rescue device |
CN110356943A (en) * | 2019-06-24 | 2019-10-22 | 苏州汇川技术有限公司 | Elevator control system and vertical ladder deliverance apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023126047A1 (en) * | 2021-12-27 | 2023-07-06 | Kone Corporation | Elevator arrangement and method of operating elevator |
Also Published As
Publication number | Publication date |
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CN113716419A (en) | 2021-11-30 |
EP3915920B1 (en) | 2023-11-22 |
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