EP2090541B1 - Système de sécurité pour ascenseurs - Google Patents

Système de sécurité pour ascenseurs Download PDF

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Publication number
EP2090541B1
EP2090541B1 EP06834113.0A EP06834113A EP2090541B1 EP 2090541 B1 EP2090541 B1 EP 2090541B1 EP 06834113 A EP06834113 A EP 06834113A EP 2090541 B1 EP2090541 B1 EP 2090541B1
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EP
European Patent Office
Prior art keywords
car
zone
speed
overspeed
movement
Prior art date
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Application number
EP06834113.0A
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German (de)
English (en)
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EP2090541A1 (fr
EP2090541A4 (fr
Inventor
Takuo Kugiya
Ken-Ichi Okamoto
Satoru Kato
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of EP2090541A1 publication Critical patent/EP2090541A1/fr
Publication of EP2090541A4 publication Critical patent/EP2090541A4/fr
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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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
    • 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
    • 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
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys

Definitions

  • the present invention relates to an elevator safety apparatus that brakes a car when an overspeed of the car is detected.
  • elevator apparatuses have been proposed in which a car position that is detected by a car position detecting means that detects the car position continuously is corrected by a car position detecting means that detects an absolute car position intermittently. Drift from actual car position of the car position that is detected continuously is corrected by detecting the absolute car position.
  • presence or absence of an overspeed is detected by comparing an overspeed disregard level that is determined based on the car position after correction and car speed (See Patent Literature 1).
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator safety apparatus that can detect overspeed of a car more reliably.
  • an elevator safety apparatus including: a zone detecting apparatus that detects a zone in which a car is present among a plurality of zones that are set so as to be contiguous in a direction of movement of the car, and also detects presence or absence of passage of the car through a switchover position that is positioned at a boundary between each of the zones; a movement detecting device that generates a signal that corresponds to movement of the car; and a processor that finds a speed of the car based on information from the movement detecting device, and also finds a position of the car by finding an amount of movement of the car based on information from the movement detecting device after passage of the car through the switchover position has been detected by the zone detecting apparatus, the elevator safety apparatus being characterized in that: a stepped overspeed reference that includes a plurality of zone reference levels that are determined individually for each of the zones, and a continuous overspeed reference that includes a continuous reference changing portion that changes continuously in the direction of
  • the processor determines the presence or absence of an overspeed in the speed of the car by comparing the speed of the car with the stepped overspeed reference when the car is inside a stopping zone, and the processor determines the presence or absence of an overspeed by comparing the speed of the car with the continuous overspeed reference when the car is outside the stopping zone, the presence or absence of the overspeed in the stepped overspeed reference can be determined irrespective of the exact position of the car by detecting the zone in which the car is present, even if detection of the exact position of the car becomes impossible due to the position of the car drifting during a power outage, for example, enabling an overspeed of the car to be detected more reliably.
  • the exact position of the car can be calculated based on the switchover position through which the car passed.
  • the presence or absence of an overspeed can be determined using the continuous overspeed reference, enabling overspeed of the car to be detected even more reliably.
  • FIG. 1 is a structural diagram that shows an elevator in which a safety apparatus according to Embodiment 1 of the present invention is disposed.
  • a car 2 and a counterweight 3 are hoistably disposed inside a hoistway 1.
  • a hoisting machine 4 that constitutes a driving machine and a deflection sheave 5 are disposed in an upper portion of the hoistway 1.
  • the hoisting machine 4 has: a hoisting machine main body 6; and a drive sheave 7 that is rotated by the hoisting machine main body 6.
  • the hoisting machine main body 6 has: a motor that rotates the drive sheave 7; and a braking device that brakes rotation of the drive sheave 7.
  • a plurality of main ropes 8 are wound continuously around the drive sheave 7 and the deflection sheave 5.
  • the car 2 and the counterweight 3 are suspended by the main ropes 8.
  • the car 2 and the counterweight 3 are raised and lowered inside the hoistway 1 by rotation of the drive sheave 7.
  • running of the elevator is controlled by a control board (not shown) that is disposed inside the hoistway 1.
  • An upper pulley 9 is disposed in an upper portion of the hoistway 1, and a lower pulley 10 is disposed in a lower portion of the hoistway 1.
  • a governing rope 11 is wound continuously around the upper pulley 9 and the lower pulley 10.
  • a shared rope connecting portion 12 to which are connected both a first end portion and a second end portion of the governing rope 11 is disposed on the car 2. Consequently, the governing rope 11 is moved together with the car 2.
  • the upper pulley 9 and the lower pulley 10 are rotated in response to movement of the governing rope 11.
  • An encoder (a movement detecting device) 13 that generates a signal that corresponds to rotation of the upper pulley 9 is disposed on a rotating shaft of the upper pulley 9. Consequently, the encoder 13 generates a signal that corresponds to movement of the car 2.
  • a plurality of zones (in this example, seven) that are contiguous in a direction of movement of the car 2 ( Figure 2 described below) and switchover positions that are respectively positioned at respective boundaries between the zones are preset inside the hoistway 1. Detection of the zone in which the car 2 is present and detection of the whether or not the car 2 is passing through each of the switchover positions is performed by a zone detecting apparatus 14.
  • the zone detecting apparatus 14 has: a cam 15 that is disposed so as to be parallel to the direction of movement of the car 2; and a switch 16 that is disposed on an upper portion of the car 2, and that faces the cam 15.
  • the switch 16 has: a switch main body 17 that is fixed to the car 2; and an operating portion 18 that is displaceable relative to the switch main body 17 (i.e., displaceable relative to the car 2).
  • a contact surface 19 that the operating portion 18 contacts is disposed on the cam 15.
  • the operating portion 18 contacts the contact surface 19 while being moved together with the car 2.
  • the contact surface 19 has: parallel portions that are parallel to the direction of movement of the car 2; and inclined portions that are contiguous with the parallel portions, and that incline relative to the direction of movement of the car 2.
  • the operating portion 18 When the operating portion 18 is moved while contacting the inclined portions of the contact surface 19, it is displaced relative to both the switch main body 17 and the car 2. In this example, the operating portion 18 is rotated downward when the car 2 ascends, and the operating portion 18 is rotated upward when the car 2 descends. Consequently, displacement (amount of rotation) of the operating portion 18 relative to the switch main body 17 varies depending on the position of the car 2.
  • the switch main body 17 generates a signal that corresponds to the displacement of the operating portion 18.
  • the operating portion 18 may also be reciprocally displaced horizontally relative to the switch main body 17.
  • Information from both the encoder 13 and the switch 16 is transmitted to the processor 20. Relationships between the signal from the switch 16 and each of the zones are stored in the processor 20 as a zone setting reference.
  • the processor 20 finds the zone in which the car 2 is present and determines whether or not the car 2 is passing through each of the switchover positions by comparing the signal from the switch 16 and the zone setting reference. In other words, the processor 20 is able to acquire information concerning the zone in which the car 2 is present and information concerning when the car 2 passed a switchover position based on the signal from the switch 16. Consequently, the processor 20 is able to acquire the zone in which the car 2 is present from the information from the switch 16, but is not able to acquire an exact position of the car 2 from the information from the switch 16.
  • the processor 20 is able to calculate the speed of the car 2 based on the information from the encoder 13. After the car 2 has passed through a switchover position, the processor 20 finds the amount of movement of the car 2 based on the information from the encoder 13, and calculates the position of the car 2 relative to the switchover position based on the amount of movement found. Consequently, the position of the car 2 is calculated continuously by the processor 20 after the car 2 has passed through a switchover position.
  • a stepped overspeed reference and a continuous overspeed reference that constitute two overspeed references for detecting presence or absence of an overspeed in the speed of the car 2 are preset in the processor 20.
  • FIG 2 is a graph that shows a stepped overspeed reference and a continuous overspeed reference that are set in the processor 20 from Figure 1 .
  • the respective zones that are set in the hoistway 1 are contiguous in order of Zones A through G from a floor portion toward a top portion of the hoistway 1.
  • the respective switchover positions are also set at the respective boundaries between each of Zones A through G.
  • a lowermost floor is positioned inside Zone A
  • an uppermost floor is positioned inside Zone G.
  • a stepped overspeed reference 21 includes a plurality of zone reference levels (in this example, seven) that have been determined individually for each of Zones A through G.
  • a constant zone reference level is set in the stepped overspeed reference 21 for each of the Zones A through G.
  • Values of the zone reference levels are different values in each of the Zones A through G. Consequently, the stepped overspeed reference 21 is an overspeed reference that changes in steps in each of the Zones A through G.
  • the values of the zone reference levels are larger values in zones that are closer to an intermediate portion of the hoistway 1, and are smaller values in zones that are closer to the top portion and the floor portion (i.e., terminal portions) of the hoistway 1.
  • each of the zone reference levels is set such that the speed of the car 2 is always below the zone reference level inside the zone when normal acceleration has been performed on a car 2 that has stopped inside the zone (i.e., such that the speed of the car 2 will not reach the zone reference level before the car 2 leaves the zone).
  • the continuous overspeed reference 22 is an overspeed reference that is smoothly continuous in the direction of movement of the car 2, and is expressed as a function of the position of the car 2.
  • the continuous overspeed reference 22 is constituted by values that are greater than or equal to the zone reference levels of the stepped overspeed reference 21 in all of Zones A through G.
  • the continuous overspeed reference 22 includes: continuous reference changing portions 23 that change continuously in the direction of movement of the car 2 in first and second continuously variable regions that are respectively adjacent to the floor portion and the top portion of the hoistway 1; and a continuous reference unchanging portion 24 is continuous at an unmodified constant value in the direction of movement of the car 2 in a continuously invariable region that is between each of the continuously variable regions.
  • the continuously variable region that is adjacent to the floor portion is a region that is constituted by Zones A through C
  • the continuously variable region that is adjacent to the top portion is a region that is constituted by the Zones E through G.
  • the continuously invariable region is a region that is constituted by Zone D.
  • the processor 20 identifies the zone in which the car 2 is present as a stopping zone if the car 2 stops due to a stopping command from the control board, or due to a power outage, for example.
  • the processor 20 determines the presence or absence of an overspeed in the speed of the car 2 by comparing the speed of the car 2 with the zone reference levels for the stopping zone in the stepped overspeed reference 21.
  • the processor 20 determines the presence or absence of an overspeed in the speed of the car 2 at a calculated position of the car 2 by comparing the speed of the car 2 with the continuous overspeed reference 22.
  • the processor 20 selects either the stepped overspeed reference 21 or the continuous overspeed reference 22 based on information from both the encoder 13 and the switch 16 and determines the presence or absence of an overspeed in the speed of the car 2 by comparing the selected overspeed reference and the speed of the car 2. In other words, the processor 20 determines the presence or absence of an overspeed in the speed of the car 2 by processing information from both the encoder 13 and the switch 16.
  • the processor 20 controls operation of the hoisting machine 4 based on the determined result of the presence or absence of the overspeed. In other words, the processor 20 outputs a braking command to the hoisting machine 4 to make the braking device perform a braking action if a determination has been made that the speed of the car 2 has reached an overspeed, and outputs a releasing command to the hoisting machine 4 to release the braking action of the braking device if it has been determined that the speed of the car 2 is lower than an overspeed.
  • Figure 3 is a graph that shows changes in the speed of the car 2 from Figure 1 when the car moves from inside Zone B toward a lowermost floor.
  • the stepped overspeed reference 21 is selected by the processor 20 from among the stepped overspeed reference 21 and the continuous overspeed reference 22.
  • Zone B in which the car 2 has been stopped is identified as the stopping zone by the processor 20.
  • the speed of the car 2 is changed in accordance with the running pattern 31 while the car 2 is being moved toward the lowermost floor.
  • the stepped overspeed reference 21 is constantly selected by the processor 20.
  • the path 32 of the overspeed reference that is selected by the processor 20 follows the stepped overspeed reference 21.
  • the speed of the car 2 is compared with the zone reference level in the stopping zone of the selected stepped overspeed reference 21, and presence or absence of an overspeed in the speed of the car 2 is determined by the processor 20.
  • the overspeed reference that is selected by the processor 20 is switched over from the stepped overspeed reference 21 to the continuous overspeed reference 22.
  • the path 32 of the overspeed reference that is selected by the processor 20 will follow the continuous overspeed reference 22.
  • a position of the car 2 that uses the switchover position as a reference is calculated in the processor 20 using information from the encoder 13.
  • the speed of the car 2 is compared with the continuous overspeed reference 22 at the calculated position of the car 2, and presence or absence of an overspeed in the speed of the car 2 is determined by the processor 20.
  • a braking action of the braking device of the hoisting machine 4 is performed by control from the processor 20, and if the speed of the car 2 has not reached an overspeed, the brake release state of the braking device is maintained by control from the processor 20.
  • Zone A which includes the lowermost floor at which the car 2 is stopped, is freshly identified as the stopping zone by the processor 20.
  • Figure 4 is a graph that shows changes in the speed of the car 2 from Figure 1 when the car moves from inside Zone B toward an uppermost floor. As shown in the figure, when the car 2 moves toward the uppermost floor from inside Zone B, if the car 2 has been stopped inside Zone B, the stepped overspeed reference 21 is also selected and Zone B is also identified as the stopping zone by the processor 20.
  • the speed of the car 2 is changed in accordance with the running pattern 31 while the car 2 is being moved toward the uppermost floor.
  • the stepped overspeed reference 21 is constantly selected by the processor 20.
  • the path 34 of the overspeed reference that is selected by the processor 20 follows the stepped overspeed reference 21.
  • the speed of the car 2 is compared with the zone reference level in the stopping zone of the selected stepped overspeed reference 21, and presence or absence of an overspeed in the speed of the car 2 is determined by the processor 20.
  • the overspeed reference that is selected by the processor 20 is switched over from the stepped overspeed reference 21 to the continuous overspeed reference 22.
  • the path 34 of the overspeed reference that is selected by the processor 20 will follow the continuous overspeed reference 22.
  • a position of the car 2 that has the switchover position as a reference is constantly calculated in the processor 20 using information from the encoder 13. Because the car 2 passes through a plurality of switchover positions before arriving at the uppermost floor, the switchover position that constitutes a calculating reference for the position of the car 2 is updated to the most recent switchover position that the car 2 has passed through each time the car 2 passes through a switchover position.
  • the speed of the car 2 is compared with the continuous overspeed reference 22 at the calculated position of the car 2, and presence or absence of an overspeed in the speed of the car 2 is determined by the processor 20. Subsequent operation is similar to when the car 2 is moved to the lowermost floor.
  • a stepped overspeed reference 21 that includes a plurality of zone reference levels that have been determined individually for each of Zones A through G, and a continuous overspeed reference 22 that is constituted by values that are greater than or equal to the zone reference levels in all of Zones A through G are preset in a processor 20, and the processor 20 determines the presence or absence of an overspeed in the speed of the car 2 by comparing the speed of the car 2 with the stepped overspeed reference 21 when the car 2 is inside a stopping zone, and the processor 20 determines the presence or absence of an overspeed in the speed of the car 2 by comparing the speed of the car 2 with the continuous overspeed reference 22 when the car 2 is outside the stopping zone, even if the position of the car 2 drifts during a power outage, for example, and detection of the exact position of the car 2 becomes impossible after the restoration of the power supply, the presence or absence of the overspeed in the stepped overspeed reference 21 can be determined irrespective of the exact position of the car 2 by detecting the zone in
  • the exact position of the car 2 can be calculated based on the switchover position through which the car 2 passed.
  • the presence or absence of an overspeed can be determined using the continuous overspeed reference 22, enabling overspeed of the car 2 to be detected even more reliably.
  • the zone detecting apparatus 14 has: a cam 15 that is disposed so as to be parallel to the direction of movement of the car 2; and a switch 16 that is disposed on the car 2, and that includes an operating portion 18 that is displaced relative to the car 2 by being moved while contacting the cam 15, and the switch 16 generates a signal that corresponds to the amount of displacement of the operating portion 18, the zone detecting apparatus 14 can be made with a simple configuration.
  • the processor 20 can also find the zone in which the car 2 is present more reliably, also enabling the presence or absence of passage of the car 2 through the switchover positions to be determined more reliably.
  • the overspeed reference that is selected by the processor 20 is switched over from the continuous overspeed reference 22 to the stepped overspeed reference 21 if the processor 20 detects that the car 2 has stopped, but the overspeed reference that is selected by the processor 20 may also be switched over from the continuous overspeed reference 22 to the stepped overspeed reference 21 if the processor 20 detects that movement of the car 2 has commenced.
  • the speed of the car 2 is found by the processor 20 based on the information from the encoder 13, but the processor 20 may also acquire the speed of the car 2 based on information from a speed detecting device that is separate from the encoder 13. In that case, the speed detecting device generates a signal that corresponds to the speed of the car 2. Generators that generate power from the movement of the car 2, etc., can be used as speed detecting devices, for example. Overspeed of the car 2 can thereby also be determined more reliably.
  • the relationship between the signal from the switch 16 and each of the switchover positions is not changed in the processor 20, but updating of each of the switchover positions may also be made possible by performing a measuring run in which the car 2 is moved from the first position toward the second position between the uppermost floor and the lowermost floor of the hoistway 1.
  • the processor 20 can output a command to perform the measuring run to the control board regularly or irregularly.
  • the control board performs the measuring run by receiving the command from the processor 20. Updating of each of the switchover positions is performed by finding new switchover positions based on the information from the zone detecting apparatus 14 during the measuring run, and replacing the former switchover positions with the switchover positions that are found.
  • the presence or absence of abnormalities in the encoder 13 is determined by the processor 20.
  • the determination of the presence or absence of abnormalities in the encoder 13 is performed by comparing the distance traveled by the car 2 that is found based on the information from the encoder 13 and a set distance traveled that has been preset.
  • the processor 20 determines whether or not updating of each of the switchover positions based on the information from the zone detecting apparatus 14 is required only if it determines that the encoder 13 is operating normally.
  • the determination of whether or not updating of each of the switchover positions is required is performed by comparing a difference between the new switchover position that has been found based on the information from the zone detecting apparatus 14 and the former switchover position and a threshold value that has been preset. Specifically, if the difference between the new switchover position and the former switchover position is less than or equal to the threshold value, it is determined that updating is not required, and if greater than the threshold value, it is determined that updating is required.
  • each of the switchover positions in the processor 20 can be updated in this manner, the occurrence of drift between each of the switchover positions that are recognized by the processor 20 and each of the actual switchover positions can be prevented, enabling overspeed of the car 2 to be determined more reliably.
  • the stepped overspeed reference 21 and the speed of the car 2 are compared when the car 2 is within a stopping zone, and the continuous overspeed reference 22 and the speed of the car 2 are compared when the car 2 is outside the stopping zone, irrespective of the direction of movement of the car 2, but presence or absence of an overspeed may also be detected by a separate overspeed reference when the direction of movement of a car 2 is away from a terminal portion of a hoistway 1, irrespective of the zone in which the car 2 is present.
  • Figure 5 is a graph that shows changes in speed of the car 2 when the car 2 is moved away from a terminal portion in an elevator in which an elevator safety apparatus according to Embodiment 2 of the present invention is disposed. Changes in the speed of the car 2 when the car is moved from inside Zone B toward an uppermost floor are shown in Figure 5 .
  • First and second terminal regions that are respectively adjacent to a floor portion and a top portion (respective terminal portions); and an intermediate region that is positioned between each of the terminal regions are set in a hoistway 1.
  • the first terminal region is constituted by Zones A through C
  • the second terminal region is constituted by Zones E through G.
  • the intermediate region is constituted by Zone D.
  • the processor 20 finds the direction of movement of the car 2 based on the information from the encoder 13.
  • the processor 20 selects a maximum value of the continuous overspeed reference as a maximum value reference level, and determines the presence or absence of an overspeed in the speed of the car 2 by comparing the maximum value reference level and the speed of the car 2.
  • the processor 20 performs a process similar to that of Embodiment 1 above.
  • Zone B is identified as the stopping zone by the processor 20.
  • the speed of the car 2 and the direction of movement of the car 2 are calculated by the processor 20.
  • a maximum value of the continuous overspeed reference 22 is selected by the processor 20 as a maximum value reference level.
  • the path 41 of the overspeed reference that is selected by the processor 20 follows the stepped overspeed reference 21. At this point, the presence or absence of an overspeed in the speed of the car 2 is determined by the processor 20 by comparing the maximum value reference level and the speed of the car 2.
  • the overspeed reference that is selected by the processor 20 is switched over from the maximum value reference level to a continuous overspeed reference. Subsequent action is similar to that of Embodiment 1.
  • the overspeed reference can be set to a high level when there is no risk that the car 2 will collide with the floor portion or the top portion (terminal portions).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Inorganic Chemistry (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Claims (5)

  1. Appareil de sécurité d'ascenseur comprenant :
    un appareil de détection de zone (14) qui détecte une zone dans laquelle une cabine (2) est présente parmi une pluralité de zones qui sont définies de manière à ce qu'elles soient contiguës dans une direction de mouvement de la cabine (2), et détecte également la présence ou l'absence d'un passage de la cabine (2) à travers une position de commutation qui est positionnée au niveau d'une limite entre chacune des zones ;
    un dispositif de détection de mouvement (13) qui génère un signal qui correspond à un mouvement de la cabine (2) ; et
    un processeur (20) qui trouve une vitesse de la cabine (2) sur la base d'informations provenant du dispositif de détection de mouvement (13), et trouve également une position de la cabine (2) en trouvant une quantité de mouvement de la cabine (2) sur la base d'informations provenant du dispositif de détection de mouvement (13) après qu'un passage de la cabine (2) à travers la position de commutation a été détecté par l'appareil de détection de zone (14),
    l'appareil de sécurité d'ascenseur étant caractérisé en ce que :
    une référence de survitesse étagée (21) qui comporte une pluralité de niveaux de référence de zone qui sont déterminés de manière individuelle pour chacune des zones, et une référence de survitesse continue (22) qui comporte une partie de changement de référence continue (23) qui change de manière continue dans la direction de mouvement de la cabine (2) et qui est constituée par des valeurs qui sont supérieures ou égales aux niveaux de référence de zone dans chacune des zones sont définies dans le processeur (20) ; et
    le processeur (20) identifie la zone dans laquelle la cabine (2) est présente en tant que zone d'arrêt lorsque la cabine (2) est arrêtée sur la base d'informations provenant à la fois de l'appareil de détection de zone (14) et du dispositif de détection de mouvement (13), et détermine la présence ou l'absence d'une survitesse dans la vitesse de la cabine (2) en comparant le niveau de référence de zone pour la zone d'arrêt et la vitesse de la cabine (2) lorsque la cabine (2) est à l'intérieur de la zone d'arrêt, et détermine la présence ou l'absence d'une survitesse dans la vitesse de la cabine (2) en comparant la référence de survitesse continue (22) et la vitesse de la cabine (2) à la position de la cabine (2) lorsque la cabine (2) est à l'extérieur de la zone d'arrêt.
  2. Appareil de sécurité d'ascenseur comprenant :
    un appareil de détection de zone (14) qui détecte une zone dans laquelle une cabine (2) est présente parmi une pluralité de zones qui sont définies de manière à ce qu'elles soient contiguës dans une direction de mouvement de la cabine (2), et détecte également la présence ou l'absence d'un passage de la cabine (2) à travers une position de commutation qui est positionnée au niveau d'une limite entre chacune des zones ;
    un dispositif de détection de vitesse qui détecte une vitesse de la cabine (2) ;
    un dispositif de détection de mouvement (13) qui génère un signal qui correspond à un mouvement de la cabine (2) ; et
    un processeur (20) qui acquiert la vitesse de la cabine (2) à partir du dispositif de détection de vitesse, et trouve également une position de la cabine (2) en trouvant une quantité de mouvement de la cabine (2) sur la base d'informations provenant du dispositif de détection de mouvement (13) après qu'un passage de la cabine (2) à travers la position de commutation a été détecté par l'appareil de détection de zone (14),
    l'appareil de sécurité d'ascenseur étant caractérisé en ce que :
    une référence de survitesse étagée (21) qui comporte une pluralité de niveaux de référence de zone qui sont déterminés de manière individuelle pour chacune des zones, et une référence de survitesse continue (22) qui comporte une partie de changement de référence continue (23) qui change de manière continue dans la direction de mouvement de la cabine (2) et qui est constituée par des valeurs qui sont supérieures ou égales aux niveaux de référence de zone dans chacune des zones sont définies dans le processeur (20) ; et
    le processeur (20) identifie la zone dans laquelle la cabine (2) est présente en tant que zone d'arrêt lorsque la cabine (2) est arrêtée sur la base d'informations provenant à la fois de l'appareil de détection de zone (14) et du dispositif de détection de vitesse, et détermine la présence ou l'absence d'une survitesse dans la vitesse de la cabine (2) en comparant le niveau de référence de zone pour la zone d'arrêt et la vitesse de la cabine (2) lorsque la cabine (2) est à l'intérieur de la zone d'arrêt, et détermine la présence ou l'absence d'une survitesse dans la vitesse de la cabine (2) en comparant la référence de survitesse continue (22) et la vitesse de la cabine (2) à la position de la cabine (2) lorsque la cabine (2) est à l'extérieur de la zone d'arrêt.
  3. Appareil de sécurité d'ascenseur selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que :
    l'appareil de détection de zone présente :
    une came (15) qui est disposée de manière à être parallèle à la direction de mouvement de la cabine (2) ; et
    un commutateur (16) qui comporte une partie de fonctionnement (18) qui se déplace par rapport à la cabine (2) en étant déplacée tout en étant en contact avec la came (15), qui est disposé sur la cabine (2), et qui génère un signal qui correspond à un déplacement de la partie de fonctionnement (18), et
    le processeur (20) trouve la zone dans laquelle la cabine (2) est présente et détermine la présence ou l'absence d'un passage de la cabine (2) à travers la position de commutation sur la base d'informations provenant du commutateur (16).
  4. Appareil de sécurité d'ascenseur selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que :
    le processeur (20) peut délivrer en sortie une instruction à un tableau de commande d'ascenseur pour effectuer un parcours de mesure qui déplace la cabine (2) à partir d'une première position vers une deuxième position entre l'étage le plus haut et l'étage le plus bas à l'intérieur de la cage (1) ; et
    le processeur (20) détermine la présence ou l'absence d'anomalies dans le dispositif de détection de mouvement (13) sur la base d'informations provenant du dispositif de détection de mouvement (13) au cours du parcours de mesure, et détermine si une mise à jour de la position de commutation est requise ou non sur la base d'informations provenant de l'appareil de détection de zone (14) uniquement si une détermination selon laquelle le dispositif de détection de mouvement (13) fonctionne normalement a été effectuée.
  5. Appareil de sécurité d'ascenseur selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que :
    des régions terminales prédéterminées qui sont respectivement adjacentes à des parties terminales de la cage (1) et une région intermédiaire qui est positionnée entre les régions terminales sont définies à l'intérieur de la cage (1) ;
    le processeur (20) peut trouver la direction de mouvement de la cabine (2) sur la base d'informations provenant du dispositif de détection de mouvement (13) ; et
    le processeur (20) détermine la présence ou l'absence d'une survitesse dans la vitesse de la cabine (2) en comparant une valeur maximale de la référence de survitesse continue (22) et la vitesse de la cabine (2) si la cabine (2) est à l'intérieur d'une région terminale et la direction de mouvement de la cabine (2) est dirigée vers la région intermédiaire.
EP06834113.0A 2006-12-06 2006-12-06 Système de sécurité pour ascenseurs Active EP2090541B1 (fr)

Applications Claiming Priority (1)

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PCT/JP2006/324358 WO2008068863A1 (fr) 2006-12-06 2006-12-06 Système de sécurité pour ascenseurs

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EP2090541A1 EP2090541A1 (fr) 2009-08-19
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EP2090541B1 true EP2090541B1 (fr) 2014-08-20

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JP (1) JP5053291B2 (fr)
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EP2380841A1 (fr) * 2009-01-21 2011-10-26 Mitsubishi Electric Corporation Dispositif élévateur
JP5345210B2 (ja) * 2009-05-19 2013-11-20 三菱電機株式会社 エレベータの異常検出装置
WO2012000170A1 (fr) * 2010-06-29 2012-01-05 Empire Technology Development Llc Procédé et système de détermination de la sécurité d'un ascenseur
JP6120977B2 (ja) 2013-09-20 2017-04-26 三菱電機株式会社 エレベータ装置
WO2015078859A1 (fr) * 2013-11-29 2015-06-04 Inventio Ag Améliorations apportées à des ascenceurs
EP2918536B1 (fr) * 2014-03-12 2022-06-22 ABB Schweiz AG Surveillance de l'état de l'équipement de transport vertical
CN114206759B (zh) * 2019-07-24 2023-10-24 因温特奥股份公司 用于确定电梯轿厢在电梯井道中的当前精确位置的方法和装置
CN111689316B (zh) * 2020-05-28 2022-08-12 日立楼宇技术（广州）有限公司 电梯轿厢位置确定方法、装置、计算机设备和存储介质
JP7078145B1 (ja) * 2021-02-09 2022-05-31 フジテック株式会社 エレベーター制御装置
CN113003350B (zh) * 2021-03-29 2022-11-25 广州广日电梯工业有限公司 电梯安全控制方法以及电梯安全控制装置

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JPS50146266A (fr) * 1974-05-13 1975-11-22
JPS50146266U (fr) * 1974-05-20 1975-12-04
JPS5612281A (en) * 1979-07-10 1981-02-06 Mitsubishi Electric Corp End floor stoppage device for elevator
JPS5878976A (ja) * 1981-11-02 1983-05-12 三菱電機株式会社 エレベ−タの制御装置
JPS62218382A (ja) * 1986-03-19 1987-09-25 株式会社日立製作所 エレベ−タの端階安全装置
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JP2003095555A (ja) 2001-09-25 2003-04-03 Toshiba Elevator Co Ltd エレベータの制御装置
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JPWO2004031064A1 (ja) * 2002-10-04 2006-02-02 株式会社日立製作所 エレベーターシステム
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CN1950287B (zh) * 2005-03-30 2011-05-11 三菱电机株式会社 电梯装置

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KR100985642B1 (ko) 2010-10-05
EP2090541A1 (fr) 2009-08-19
WO2008068863A1 (fr) 2008-06-12
EP2090541A4 (fr) 2013-08-21
KR20090087086A (ko) 2009-08-14
CN101500924A (zh) 2009-08-05
CN101500924B (zh) 2011-04-20
JP5053291B2 (ja) 2012-10-17
JPWO2008068863A1 (ja) 2010-03-18

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