EP2367746A1 - Elevator installation - Google Patents
Elevator installationInfo
- Publication number
- EP2367746A1 EP2367746A1 EP09796717A EP09796717A EP2367746A1 EP 2367746 A1 EP2367746 A1 EP 2367746A1 EP 09796717 A EP09796717 A EP 09796717A EP 09796717 A EP09796717 A EP 09796717A EP 2367746 A1 EP2367746 A1 EP 2367746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator car
- elevator
- braking device
- braking
- car
- 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
- 238000009434 installation Methods 0.000 title claims abstract description 31
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000013270 controlled release Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000012544 monitoring process Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 8
- 230000001934 delay Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000554155 Andes Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Definitions
- the invention relates to an elevator installation with a first elevator car and at least one second elevator car, which are arranged, for example, in a common elevator shaft and traverse this elevator shaft during operation along a common roadway.
- DE 1 562 848 B1 discloses an elevator installation with a shaft in which at least two drive bodies can be moved along a common roadway.
- the cars each comprise a safety gear, to each of which a control unit, a drive and a brake are assigned.
- a shaft information system is provided for determining the positions and speeds of the cars, which is connected to an electrical safety device.
- distance sensors are provided which are provided for determining the distance that a particular car to an adjacent car or a roadway end and preferably also to a predetermined shaft position, wherein the distance sensors are connected to the safety device.
- the triggering of at least one safety gear is additionally provided, whereby the tripping takes place mechanically.
- the safety device may comprise a determination unit which determines a speed-dependent minimum distance.
- the elevator system known from EP 1 562 848 B1 has the disadvantage that there are large variations with regard to the braking distance, since the preset normal force generates varying braking forces by varying coefficients of friction and these in turn cause different delays depending on the loading state of the respective car. At high car speeds, these physical boundary conditions lead to very long stopping distances, since the braking distance increases at least approximately with the square of the car speed.
- An object of the invention is to provide an elevator system in which an optimized operation is possible. Specifically, it is an object of the invention to provide an elevator installation in which the braking effects of brake devices for the elevator cars are optimized.
- a measuring device is provided for the first elevator car, which is used for at least indirectly detecting a delay of the first elevator car, that a measuring device is provided for the second elevator car, which serves for at least indirectly detecting a delay of the second elevator car, and that the safety system determines a deceleration setpoint for the brake force control device of the brake device of the first elevator car and a deceleration setpoint for the brake force control device of the brake device of the second elevator car.
- the safety system has at least one processor.
- an optimized stopping of the elevator cars can take place. Specifically, a desired deceleration of an elevator car with respect to different loading conditions can be achieved. Scattering of the desired braking distance can be reduced thereby. Specifically, an optimized operation is possible because, in contrast to a combination of predetermined normal force and minimum distance, which must be oriented in the worst case, an advantageous adaptation to the current operating state is possible. Specifically, unnecessarily high delays of an elevator car can be avoided, which can lead to falls and injuries to persons in the elevator car. It is also advantageous in this case for the safety system to be in an operating state in which the elevator cars cross their carriageway spaces in the same direction along their roadways, for the brake force control device of the brake device of the elevator car which is located in this
- Operating state is a subsequent elevator car, a larger delay setpoint than determined for the brake force control device of the braking device of the elevator car, which is a preceding elevator car in this operating condition.
- a reliable stopping of the two elevator cars is made possible, wherein the subsequent elevator car can be stopped with a greater delay and / or stopping the elevator cars is triggered at a reduced minimum distance, with a collision of the two elevator cars is reliably prevented.
- the safety system in an operating state in which at least one elevator car traverses its roadway space along its roadway upwards, the delay setpoint for the
- Brake control device of the braking device of the elevator car which traverses its track space along its roadway upwards, so determined that the delay setpoint is less than the acceleration due to gravity.
- the deceleration setpoint is chosen to be much smaller than the gravitational acceleration.
- speed measuring devices can also be provided on pulleys or be configured as separate devices that are independent of the drives of the elevator system.
- the safety system advantageously comprises an absolute sensor provided on the first elevator car, which serves for detecting a position of the first elevator car in the roadway space which the first elevator car traverses along its roadway.
- the security system comprises an absolute sensor provided on the second elevator car and serving to detect a position of the second elevator car in the lane space which the second elevator car traverses along its lane.
- the safety system determines a distance between the first elevator car and the second elevator car depending on the position of the first elevator car detected by the absolute sensor provided on the first elevator car and the position of the second elevator car detected by the absolute sensor provided on the second elevator car.
- the security system controls to prevent a collision the first elevator car with the second elevator car the
- the security system can be designed centrally or decentrally.
- a decentralized security system is a security system, the individual
- Safety devices comprises, wherein in each case a safety device is positioned on an elevator car and preferably also monitor this elevator car.
- a central security system has a safety device that monitors all elevator cars.
- the safety system controls a decentralized safety device provided on the first elevator car, which controls the braking device of the first elevator car depending on the distance between the first elevator car and the second elevator car determined in dependence on the positions of the elevator cars, and one on the second Having the elevator car provided safety device which controls the braking device of the second elevator car depending on the determined in dependence on the positions of the elevator cars distance between the first elevator car and the second elevator car.
- This can be a decentralized embodiment of the Security system can be realized.
- Elevator cabs provided decentralized
- Safety devices can serve as independent monitoring units. This has the advantage that from each elevator car to the outside no safe each
- each safety device has at least one processor for calculating the deceleration setpoints and for controlling the braking devices.
- the safety system has a central safety device which, depending on the distance between the first elevator car and the second elevator car determined between the positions of the elevator cars, the braking device of the first elevator car by means of the brake control device provided on the first elevator car and the braking device of the second elevator car controls by means provided on the second elevator car brake control device.
- the central security device as
- Safety device or required. By the central safety device, the control engineering effort may be reduced and an evaluation and Consideration of different information.
- transmission channels are preferably data cable, data bus or wireless data transmission means, such as
- a secure transmission of data over the transmission channels can be achieved, for example, by a redundant design of the transmission channels, by data transmission protocols, or by polling the sensors, which transmit positions and / or speed signals, through the central security device 35 via a data bus.
- the security system has a relative sensor provided on the second elevator car, which serves for detecting a distance between the first elevator car and the second elevator car.
- the security system for preventing a collision between the first elevator car and the second elevator car controls the braking device of the first elevator car and / or the braking device of the second elevator car depending on the detected distance between the first elevator car and the second elevator car.
- the safety system has a decentralized safety device provided on the first elevator car, which in dependence on the one by the first
- Elevator cabin provided relative sensor detected distance controls the braking device of the first elevator car, and provided on the second elevator car decentralized Safety device that controls the braking device of the second elevator car depending on the distance detected by the relative sensor provided on the second elevator car.
- the relative sensors can be advantageously combined with absolute sensors. By means of the relative sensors, an individual distance detection can be carried out on each elevator car in order to enable a high level of operational safety. In this case, the data detected by the relative sensor can advantageously be evaluated at the respective elevator car, so that reliable control of the respective braking device is achieved and can be realized with relatively little effort.
- the braking device of at least one elevator car has the function of an emergency stop brake which can be actuated by the safety system by means of the brake control device for preventing a collision between the first elevator car and the second elevator car, and the function of a holding and / or safety brake. This makes it possible to dispense with a separate holding or catch brake.
- the braking device comprises at least one elevator car, a controllable brake actuator, which allows a targeted braking force.
- the brake actuator of the braking device at least one elevator car controls so that by a controlled release and delivery of the braking device, the elevator car to a desired evacuation position in their lane space along its roadway is movable.
- the brake actuators are carried out to move one or both cabins load-dependent targeted up or down and bring to a desired destination, that is, the evacuation position.
- a targeted approach of the two elevator cars is possible to couple them together.
- At least one elevator car has a separate safety brake and that the safety system additionally actuates the brake device when the safety brake of the elevator car is triggered.
- the safety system additionally actuates the brake device when the safety brake of the elevator car is triggered.
- the braking device can be based on a vanishing additional braking force targeted support the braking force of the safety brake to reliably avoid depending on the respective distance of the elevator cars in this situation, a collision.
- the triggering of the safety brake can be done for example in a Tragstoffbruch.
- Fig. 1 shows an elevator system with a safety system in a schematic representation according to a first embodiment of the invention
- FIG. 2 the elevator system shown in Fig. 1 according to a second embodiment of the invention.
- FIG. 1 shows an elevator installation 1 with a safety system 2 in a schematic representation according to a first exemplary embodiment.
- the elevator system 1 this
- Embodiment has a first elevator car 3 and a second elevator car 4. Depending on the design of the elevator installation 1, however, more than two elevator cars 3, 4 may be provided.
- the elevator cars 3, 4 are guided on a common guide rail 5, which defines a roadway 5 for the elevator cars 3, 4.
- the elevator cabins 3, 4 pass through a roadway space 6 during their travel along the guide rails 5, which is shown in sections in FIG.
- the carriageway space 6 is traversed by two elevator cars 3, 4 in this embodiment.
- a position at the upper shaft end 7 can only be reached by the elevator car 3, while a corresponding position at the lower shaft end (not shown) can only be reached by the second elevator car 4.
- the first elevator car 3 is always in operation above the second elevator car 4, wherein a distance 8 between the elevator cars 3, 4 can vary largely arbitrarily. It is also possible that for each elevator car 3, 4 a separate roadway space is provided, which overlap only partially. For example, the second elevator car 4 can approach the floors "-1" to "10" while the first elevator car 3 moves to the floors "8" to "14". The carriageway space for the first elevator car 3 and the carriageway space for the second elevator car 4 overlap in such a case only with respect to the floors "8" to 1 0 "
- a braking device 10 is provided, which cooperates with the guide rails 5.
- a braking device 10 is provided, which cooperates with the guide rails 5.
- the second elevator car 4 a is provided, which cooperates with the guide rails 5.
- Braking device 11 is arranged, which also cooperates with the guide rails 5. In this
- the security system 2 has a decentralized security device 12 provided on the first elevator car 3 and one on the second
- Elevator car 4 provided decentralized safety device 13.
- the decentralized safety device 12 of the first elevator car 3 has a brake force control device 14 which serves to regulate a braking force of the brake device 10. Accordingly, the decentralized
- Safety device 13 of the second elevator car 4 a brake force control device 15 which serves to regulate the braking force of the brake device 11.
- the elevator installation 1 has a drive machine unit 16 and a drive pulley 17 driven by the drive unit 16 for the first elevator car 3. Furthermore, the elevator installation 1 has a drive machine unit 18 and a drive pulley 19 driven by the drive machine unit 18 for the second elevator car 4. The actuation of the
- Elevator cabins 3, 4 by means of the drive machine units 16, 18 via traction means 20, 21, which are guided over the traction sheaves 17, 19. Further, counterweights for the elevator cars 3, 4 are provided, which are not shown for the sake of simplicity of illustration.
- a speed measuring device 22 is arranged at the traction sheave 17. Further, at the traction sheave 19, a speed measuring device 23 is arranged at the traction sheave 19. The
- Velocity measuring device 22 determines, for example via a pulse generator mounted on the traction sheave 17, a rotational speed of the traction sheave 17.
- the speed measuring device 22 can detect a speed of the first elevator car 3 as it travels along the guide rails 5. Accordingly, the speed measuring device 23 detects a speed of the second elevator car 4.
- the measuring devices 22, 23 are designed to determine accelerations and decelerations of the elevator cars 3, 4 from the detected speed data.
- the data acquired by the speed measuring devices 22, 23 are output to a safety circuit 24 of the safety system 2.
- the safety circuit 24 may be formed by a data bus, for example.
- the decentralized safety devices 12, 13 and a shaft monitoring unit 25 are connected to the safety circuit 24.
- suitable interfaces to the safety circuit 24 are provided.
- the shaft monitoring unit 25 can for example determine an operating state of the elevator installation 1 and transmit this to the decentralized safety devices 12, 13. As a result, data processing of the security system 2 can take place partially in the shaft monitoring unit 25.
- the elevator installation 1 also has a central control 26, which drives the drive machine unit 16, 18.
- the central controller 26 executes control commands for the normal operation of the elevator installation 1, for example, one of the elevator cars 3, 4 to a desired floor to drive .
- the security system 2 includes an absolute sensor 27 provided on the first elevator car 3 for detecting a position of the first elevator car 3 in the carriageway space 6 and an absolute sensor 28 provided on the second elevator car 4 for detecting a position of the vehicle second elevator car 4 in the carriageway space 6 is used.
- the absolute sensors 27, 28 can detect the positions of the elevator cars 3, 4 on the guide rail 5.
- the absolute positions of the elevator cars 3, 4 detected by the absolute sensors 27, 28 are on the one hand sent to the central controller 26 for carrying out the usual
- the safety system 2 determines the distance 8 between the first elevator car 3 and the second elevator car 4 from these absolute positions of the elevator cars 3, 4.
- Shaft monitoring unit 25 are performed.
- an activation of the brake force control devices 14, 15 takes place in order to prevent a collision of the elevator cars 3, 4 as they travel through the roadway space 6. If the distance 8 between the elevator cars 3, 4 with respect to the current operating state of the elevator installation 1 falls below a critical value, then the security system 2 controls the braking devices 10, 11 of the elevator cars 3, 4 by means of
- Brake force control devices 14, 15 at. If, for example, both elevator cars 3, 4 move downwards and the distance 8 reaches or falls below a critical distance, then the brake devices 10, 11 are actuated.
- Brake force control device 15 As a result, a stronger deceleration of the first elevator car 3 is achieved.
- the second elevator car 4 however, delayed delayed.
- the regulation of the delays of the elevator cars 3, 4 can, for example, by comparing the of the
- Velocity measuring devices 22, 23 detected, actual delays with respect to the delay setpoints for the brake force control devices 14, 15 done.
- the data provided by the absolute sensors 27, 28 can also be used. Furthermore, suitable sensors which directly measure acceleration or deceleration may also be provided on the elevator cars 3, 4.
- the deceleration target values are smaller and are preferably determined to be considerably smaller than the gravitational acceleration. As a result, a lifting of persons or objects that are transported in the elevator cars 3, 4, prevented.
- a certain maximum may also occur during a downward travel
- Delay setpoint must be specified. The specification of such maximum delay setpoint values is taken into account in determining the critical distance for the distance 8 between the elevator cars 3, 4 from the safety system 2, in particular the shaft monitoring unit 25.
- the shaft monitoring unit 25 can determine the critical distance for the distance 8 between the elevator cars 3, 4 in dependence on the current operating state. That is, the critical distance for the distance 8 may change depending on the operating state of the elevator installation 1.
- the safety system 2 also has a relative sensor 29 provided on the first elevator car 3 and a relative sensor 30 provided on the second elevator car 4.
- the relative sensors 29, 30 each serve to detect the distance 8 between the first elevator car 3 and the second elevator car 4.
- the relative sensor 29 is connected to the decentralized safety device 12 of the first elevator car 3. Furthermore, the relative sensor 30 with the decentralized safety device 13 of the second
- Elevator car 4 connected.
- the distance ⁇ respectively detected by the relative sensors 29, 30 can be used in the decentralized safety devices 12, 13 together with further information provided by the shaft monitoring unit 25 to decide whether stopping the elevator cars 3, 4 to prevent a collision between the elevator cars 3, 4 is required.
- the relative sensors 29, 30 thus provide a further possibility of detecting the distance 8 between the elevator cars 3, 4.
- the relative sensors 29, 30 in combination with the absolute sensors 27, 28 can serve to detect the distance 8. As a result, a redundancy for increasing the reliability can be created.
- Fig. 2 shows an elevator system 1 in a schematic representation according to a second embodiment.
- only absolute sensors 27, 28 are provided on the elevator cars 3, 4.
- only brake force control devices 14, 15 are provided on the elevator cars 3, 4, while in the first described with reference to FIG.
- Embodiment of the elevator cars 3, 4 decentralized safety devices 12, 13 are provided with such brake force control devices 14, 15 are.
- a central safety device 35 of the safety system 2 is provided in the second exemplary embodiment described with reference to FIG.
- the central security device 35 of the security system 2 is connected via the security circuit 24 with the other components of the security system 2.
- the central safety device 35 is connected to the absolute sensors 27, 28 of the elevator cars 3, 4, the brake control devices 14, 15 of the elevator cars 3, 4, the shaft monitoring unit 25 and the speed measuring devices 22, 23.
- Safety device 35 and between the absolute sensors 27, 28 and the central safety device 35 is provided.
- the central safety device 35 controls the brake devices 10, 11 by means of the respective brake force control device 14, 15 in a case where the elevator cars 3, 4 are to be stopped to prevent a collision.
- the central safety device 35 thus assumes the functions of the described with reference to FIG. 1 decentralized safety devices 12, 13 of the elevator system 1 of the first embodiment.
- Braking devices 10, 11 each have a controllable brake actuator 10, 11, which allows a targeted braking force.
- the brake devices 10, 11 in addition to the function of a Nothaltbremse, which is actuated by the safety system 2 by means of the brake force control means 14, 15 for preventing a collision between the elevator cars 3, 4, also the function of a holding and / or Have catch brake.
- a separate brake actuator 10 which allows a targeted braking force.
- Holding brake and / or a separate safety brake are provided, in which case support for the braking effect of a holding and / or safety brake by the brake devices 10, 11 is possible.
- the brake devices 10, 11 may also include a brake actuator 10, 11.
- the safety system 2 can control the brake devices 10, 11 such that the elevator cars 3, 4 are moved to a desired evacuation position in the carriageway space 6 by a controlled release and delivery of the brake devices 10, 11 of the elevator cars 3, 4.
- a floor 36 may be selected as the desired evacuation position 36 to which the second elevator car 4 is moved to allow evacuation.
- the braking devices 10, 11 are arranged in a lower region of the elevator cars 3, 4. However, it is also advantageous that the braking devices 10, 11 are arranged on an upper region of the elevator cars 3, 4.
- the brake devices 10, 11 can be designed as electromechanical or hydraulic brake devices 10, 11. Furthermore, the brake devices 10, 11 may have a brake actuator 10, 11 for defined braking force buildup.
- sensors 37, 38 which serve to measure the braking forces, the normal forces and / or a deceleration of the respective elevator car 3, 4, can be provided on the brake devices 10, 11.
- These sensors 37, 38 are preferably connected to the brake force control devices 14, 15 and / or to the central safety device 35 or the decentralized safety devices 12,
- the deceleration setpoint values for the brake force control devices 14, 15 can each depend on a plurality of parameters, in particular on the operating and / or load state of the elevator installation 1 and the elevator cars 3, 4. Specifically, the deceleration setpoint values can be determined as a function of position, speed and / or deceleration.
- the elevator installation 1 is equipped in the exemplary embodiments with two elevator cars 3, 4. In a corresponding manner, however, more than two elevator cars 3, 4 may be provided.
- the elevator cars 3, 4 can essentially traverse a common roadway space 6. However, it is also possible that several lane spaces are provided, which partially overlap.
- the measuring devices 22, 23 for speed measurement for the elevator cars 3, 4 can also be realized in other ways. Specifically, the measuring devices 22, 23 may be provided on the elevator cars 3, 4, for example in the form of the sensors 37, 38. In addition, the absolute sensors 27, 28 can also be used for speed measurement, so that the absolute sensors 27, 28 also function as measuring devices 22, 23 take over.
Landscapes
- Elevator Control (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09796717.8A EP2367746B1 (en) | 2008-12-23 | 2009-12-21 | Lift assembly |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08172707 | 2008-12-23 | ||
PCT/EP2009/067640 WO2010072714A1 (en) | 2008-12-23 | 2009-12-21 | Elevator installation |
EP09796717.8A EP2367746B1 (en) | 2008-12-23 | 2009-12-21 | Lift assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2367746A1 true EP2367746A1 (en) | 2011-09-28 |
EP2367746B1 EP2367746B1 (en) | 2013-05-08 |
Family
ID=40325904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09796717.8A Active EP2367746B1 (en) | 2008-12-23 | 2009-12-21 | Lift assembly |
Country Status (7)
Country | Link |
---|---|
US (1) | US8813919B2 (en) |
EP (1) | EP2367746B1 (en) |
CN (1) | CN102264622B (en) |
BR (1) | BRPI0923522B1 (en) |
ES (1) | ES2424029T3 (en) |
IL (1) | IL213063A0 (en) |
WO (1) | WO2010072714A1 (en) |
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EP2465804A1 (en) * | 2010-12-16 | 2012-06-20 | Inventio AG | Multi-cabin lift with brake status indicator |
EP2607282A1 (en) * | 2011-12-23 | 2013-06-26 | Inventio AG | Safety device for a lift with multiple cabins |
ES2566386T3 (en) * | 2012-01-25 | 2016-04-12 | Inventio Ag | Safety device and transfer control procedure of an elevator car |
DE102012106056A1 (en) * | 2012-07-05 | 2014-01-09 | Rg Mechatronics Gmbh | Regulating device for controlling the acceleration of a transport device moved in the vertical direction |
WO2015033370A1 (en) * | 2013-09-03 | 2015-03-12 | 三菱電機株式会社 | Elevator system |
EP2886501A1 (en) * | 2013-12-18 | 2015-06-24 | Inventio AG | Elevator with an absolute positioning system for a double decker cabin |
EP3177555B1 (en) * | 2014-08-07 | 2019-05-08 | Inventio AG | Elevator system, braking system for an elevator system and method for controlling a braking system of an elevator system |
DE102014017486A1 (en) * | 2014-11-27 | 2016-06-02 | Thyssenkrupp Ag | Elevator installation with a plurality of cars and a decentralized security system |
MY185020A (en) * | 2014-12-10 | 2021-04-30 | Inventio Ag | Elevator system comprising with a safety monitoring system with a master/slave hierarchy |
PL3307666T3 (en) * | 2015-06-10 | 2021-08-02 | Inventio Ag | Elevator system with predictive call generation |
AU2016231585B2 (en) * | 2015-09-25 | 2018-08-09 | Otis Elevator Company | Elevator component separation assurance system and method of operation |
US9650226B2 (en) * | 2015-09-28 | 2017-05-16 | Smart Lifts, Llc | System and method for controlling multiple elevator cabs in an elevator shaft |
CN105540363A (en) * | 2015-12-16 | 2016-05-04 | 中冶南方(武汉)自动化有限公司 | Group control system for multi-car elevators and safety control method thereof |
US10407275B2 (en) * | 2016-06-10 | 2019-09-10 | Otis Elevator Company | Detection and control system for elevator operations |
CN106927327B (en) * | 2017-03-27 | 2020-06-16 | 无锡英威腾电梯控制技术有限公司 | Elevator safety detection method and device |
WO2019086205A1 (en) * | 2017-10-31 | 2019-05-09 | Inventio Ag | Safety monitoring device for monitoring safety-relevant states in a person-transporting system, and method for operating same |
WO2020012518A1 (en) * | 2018-07-09 | 2020-01-16 | 三菱電機株式会社 | Elevator system |
CN111392602B (en) * | 2020-04-20 | 2021-07-23 | 上海建工集团股份有限公司 | Operation positioning and anti-collision control system and method for multistage series lifting equipment |
CN113401759B (en) * | 2021-06-29 | 2023-06-23 | 日立楼宇技术(广州)有限公司 | Braking method and device for elevator car |
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DE59610869D1 (en) * | 1995-10-17 | 2004-01-29 | Inventio Ag | Safety device for multimobile elevator groups |
JP4326618B2 (en) * | 1999-02-03 | 2009-09-09 | 三菱電機株式会社 | Elevator group management device |
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EP1765710A4 (en) * | 2004-06-21 | 2011-09-21 | Otis Elevator Co | Elevator system including multiple cars in a hoistway |
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2009
- 2009-12-21 BR BRPI0923522-1A patent/BRPI0923522B1/en not_active IP Right Cessation
- 2009-12-21 US US13/141,813 patent/US8813919B2/en active Active
- 2009-12-21 CN CN2009801519215A patent/CN102264622B/en active Active
- 2009-12-21 WO PCT/EP2009/067640 patent/WO2010072714A1/en active Application Filing
- 2009-12-21 ES ES09796717T patent/ES2424029T3/en active Active
- 2009-12-21 EP EP09796717.8A patent/EP2367746B1/en active Active
-
2011
- 2011-05-23 IL IL213063A patent/IL213063A0/en unknown
Non-Patent Citations (1)
Title |
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See references of WO2010072714A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102264622A (en) | 2011-11-30 |
EP2367746B1 (en) | 2013-05-08 |
BRPI0923522B1 (en) | 2019-08-06 |
IL213063A0 (en) | 2011-07-31 |
US8813919B2 (en) | 2014-08-26 |
WO2010072714A1 (en) | 2010-07-01 |
CN102264622B (en) | 2013-09-11 |
BRPI0923522A2 (en) | 2016-01-26 |
US20110259674A1 (en) | 2011-10-27 |
ES2424029T3 (en) | 2013-09-26 |
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