EP3438033B1 - Aufzugsystem - Google Patents

Aufzugsystem Download PDF

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Publication number
EP3438033B1
EP3438033B1 EP16896839.4A EP16896839A EP3438033B1 EP 3438033 B1 EP3438033 B1 EP 3438033B1 EP 16896839 A EP16896839 A EP 16896839A EP 3438033 B1 EP3438033 B1 EP 3438033B1
Authority
EP
European Patent Office
Prior art keywords
car
detected
door zone
door
calculated
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.)
Active
Application number
EP16896839.4A
Other languages
English (en)
French (fr)
Other versions
EP3438033A4 (de
EP3438033A1 (de
Inventor
Kanako Katoh
Toshiharu Matsukuma
Masaki MIYAMAE
Akira Iwamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP3438033A1 publication Critical patent/EP3438033A1/de
Publication of EP3438033A4 publication Critical patent/EP3438033A4/de
Application granted granted Critical
Publication of EP3438033B1 publication Critical patent/EP3438033B1/de
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Classifications

    • 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
    • B66B1/3492—Position or motion detectors or driving means for the detector
    • 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

Definitions

  • the present invention relates to an elevator system.
  • a photoelectric position detection device position detection sensor
  • the position detection device detects a plate to be detected installed in a hoistway corresponding to each floor, thereby to detect an opening/closing permitted (openable/closable) region (door zone) of a door of the car with respect to a door of a landing.
  • PTL 1 is an example of an elevator that detects a door zone using a position detection device.
  • PTL 1 discloses an elevator with a safety position sensor for detecting a door zone indicating a region where a passenger can get on and off when a position of a car reaches a lift position where doors of the car and a landing are openable/closable, the elevator including first and second position detection sensors provided on the side of the car, separated by a predetermined distance in a lifting direction, and installed to face the side of the landing, a plate to be detected provided on the side of the landing and disposed such that the door zone is detected by the position detection sensors, and a logic computer to which signals of the first and second position detection sensors are input and which outputs a result of logic operation of the input signals, wherein a logic OR output signal by the logic computer is a signal that has detected the door zone.
  • PTL 2 discloses a controller for an elevator, wherein the relation between the pulse of a pulse generator installed on an electric motor and the position point signal supplied from a position point detector is memorized previously in a position point information memory circuit.
  • PTL3 shows a speed controller for an elevator having a car emergency stop means which calculates a travel distance on a plate on the basis of the calculation value of a calculating means when a position signal from a position detecting means is inputted.
  • an apparatus for controlling an elevator adds cage moving distances per unit time by advance position calculating means at predetermined time to a reference value in parallel with the running operation of the elevator.
  • PTL 1 increases the number of the position detection sensors to two and installs these two sensors separated by a predetermined distance, and uses the logic OR output signals of the signals as door zone detection signals. However, even when two position detection sensors are provided, these sensors are the same photoelectric-type sensors, and thus erroneous detection due to external light or the like may occur at the same time.
  • the present invention provides an elevator system capable of determining availability of opening/closing of a car door after determining whether a car is located in a door zone even if a position detection device provided on the car breaks down.
  • an elevator system capable of determining availability of opening/closing of a car door after determining whether a car is located in a door zone even if a position detection device provided on the car breaks down.
  • FIG. 1 is a diagram schematically illustrating an example of an elevator system according to the present invention.
  • a car 1 is connected to a counterweight 3 via a rope 2, and moves up and down in a hoistway 4.
  • the movement (up and down) of the car 1 is performed by driving of a sheave 6 by a motor 5.
  • a pulse generator (motor encoder) 7 such as an encoder is attached to the motor 5, and a speed of the motor 5, a position and a moving distance of the car 1, and the like are calculated from pulses generated by rotation of the motor 5.
  • the car 1 is provided with a car door 9 that opens and closes facing a door 8 (8a or 8b) on the side of landing 21 (21a or 21b).
  • a governor governor rope 14 is connected to the car 1 and is driven with the car 1.
  • the governor governor rope 14 is wound around a governor 13, and the governor 13 is rotated with the driving of the governor rope 14.
  • a pulse generator (governor encoder) 15 is attached to the governor 13, similarly to the motor 5.
  • a car position detection device (position detection sensor) 10 is provided on the car 1, and detects an openable/closable region (door zone) of the car door 9 in the hoistway 4 by detecting a plate to be detected 11 (11a or 11b) installed on a wall of the hoistway 4.
  • the plate to be detected 11 has a predetermined length (a length L in FIG. 1 ) in a lifting direction of the car 1, and this length L corresponds to a region (door zone) where the car door 9 can be opened. That is, when the car position detection device 10 of the car 1 is located at a position where the plate to be detected 11 is detectable (the range of the length L), a difference between a position of a floor of the car 1 and a position of a floor of the landing 21 is determined to secure sufficient safety for allowing a passenger to get on and off the car 1, and the landing door 8 and the car door 9 are opened and closed.
  • the car door 9 is opened and closed when the floor of the car 1 is located within a range of L/2 above or below ⁇ .
  • the plate to be detected 11 is provided in the hoistway 4 to correspond to the door zone on each story.
  • the car position detection device 10 provided on the car 1 is not particularly limited.
  • a photoelectric-type, a magnetic-type, or a capacitance-type contactless detection sensor can be used.
  • a detection signal output by the car position detection device 10 is input to a door zone detection unit 12 in a control device 20 and the door zone is detected, a door zone detection signal output from the door zone detection unit 12 is received by a door opening/closing instruction unit 19, and the door opening/closing instruction unit 19 transmits an opening/closing instruction of the door to the car door 9 and the landing door 8.
  • the car position detection device 10 for detecting the door zone in a conventional elevator, the car is determined to be located outside the door zone, and the car door is determined not to be openable/closable despite the position of the car located within the door zone, depending on a failure mode. As a result, there is a possibility that the passenger is trapped in the car 1 even in an unnecessary case.
  • the present invention determines whether the car 1 is located in the door zone even when the car position detection device 10 breaks down, and the door opening/closing instruction unit can output an opening/closing permission instruction of the car door.
  • a device capable of detecting the position (absolute position) of the car 1 by measuring a moving amount of the car 1 is used, and when the car position detection device 10 breaks down, whether the car 1 is located within the door zone is determined using the car moving amount measurement device.
  • any device may be used as the car moving amount measurement device as long as the device can detect the position of the car 1.
  • the above-described motor encoder 7 or governor encoder 15 is suitable. Since these pulse generators generate pulses according to a rotation amount of the motor 5 or the governor 13, the position of the car 1 can be calculated from the count of the pulses.
  • the governor encoder 15 is more favorable because a slip amount is smaller than that of the motor. encoder 7.
  • the governor encoder 15 is typically used to detect the speed of the car 1, but in the present invention, the governor encoder 15 is used to detect the door zone.
  • the rotation amount (the number of pulses) detected and output by the governor encoder 15 is input to a car position calculation unit 16 of the control device 20, and the position of the car 1 is calculated.
  • FIG. 2 is a flowchart illustrating an example of an operation of the elevator system according to the present invention.
  • the governor encoder 15 as the car moving amount measurement device, there is a possibility of occurrence of a gap between the actual position of the car 1 and the position of the car 1 calculated by the car position calculation unit 16 due to wear of the governor 13, slipping of the governor rope 14, and the like.
  • the position of the plate to be detected 11 is recorded in advance, and it is favorable to adjust the position of the car 1 calculated by the car position calculation unit to the position of the plate to be detected 11 recorded in advance when there is a difference between the position of the plate to be detected 11 recorded in advance and the position of the car 1 calculated by the car position calculation unit 16, every time the car position detection device 10 detects the plate to be detected 11.
  • a car position correction unit 17 corrects the position of the car calculated by the car position calculation unit 16 every time the car position detection device 10 passes through the plate to be detected 11. At this time, it is favorable to make a correction only when a difference between the position of the plate to be detected 11 and the position of the car 1 falls within a predetermined threshold value (hereinafter, a "first threshold value: X (mm)".
  • the car position correction unit 17 includes a correction abnormality counter unit 17a.
  • the car position correction unit 17 When the difference exceeds X, the car position correction unit 17 does not correct the position of the car 1 calculated by the car position calculation unit 16, and counts up threshold value excess record in the correction value abnormality counter unit 17a (S1 and S2). S1 and S2 are performed every time the car position detection device 10 detects the plate to be detected 11 during traveling of the elevator.
  • the car At a normal operation of the elevator, the car is stopped at a story registered by car call provided at the landing and a story registered by car call provided in the car. Meanwhile, at an abnormal operation, after an emergency situation is detected, the car 1 is forcibly moved to a closest story and is stopped. In any case, after stop of the car at a certain story is detected ("Yes" in S3), breakdown of the car position detection device is determined (S4).
  • Determination as to whether the car position detection device 10 has broken down can be made in such a manner that travel record of the car 1 (the detection signal of the plate to be detected 11 by the car position detection device 10) and the position of the plate to be detected 11 recorded in advance are compared in the control device 20 after stop of the car, and the determination is performed according to whether the car position detection device 10 generates a signal at a position where no plate to be detected 11 is detected.
  • the door zone detection unit 12 detects the door zone, and the door opening/closing instruction unit 19 determines that the car door 9 and the landing door 8 are openable/closable and permits opening/closing of the doors (S7).
  • the control device 20 determines presence or absence of the count of the correction value abnormality counter unit 17a (S5).
  • the correction value abnormality counter unit 17a counts correction value abnormality ("No" in S5)
  • the position of the car 1 calculated in the car position calculation unit 16 is considered to be greatly erroneous
  • a door zone determination unit 18 determines that the car 1 is located outside the door zone and the door opening/closing instruction unit 9 determines that the doors are not openable/closable (not permitted) (S8).
  • the control device 20 determines whether the current position (at the time of landing) of the car 1 calculated by the car position calculation unit 16 falls within a predetermined threshold value (hereinafter, a "second threshold value: Y (mm)”) from a position of a floor of a story where the car 1 is stopped, the position being recorded in advance (S6).
  • a predetermined threshold value hereinafter, a "second threshold value: Y (mm)
  • the door zone determination unit 18 determines that the car 1 is located outside the door zone and the door opening/closing instruction unit 9 determines that the doors are not openable/closable (S8).
  • the door zone determination unit 18 determines that the car 1 is located within the door zone, and the door opening/closing instruction unit 9 determines that the doors are openable/closable and permits opening/closing (S7).
  • the car 1 is determined to fall within the range of the door zone, and thus the opening/closing of the doors can be permitted.
  • the car position detection device 10 even when the car position detection device 10 is determined to break down, whether the car 1 is located in the door zone is determined in S5 and S6 by the control device 20, and permission of the opening/closing of the doors can be instructed. Therefore, as compared with the conventional case where the position is uniformly determined to be outside the door zone when the position detection sensor is determined to break down, the opportunity that the passenger is trapped in the car 1 can be decreased.
  • an elevator system capable of determining whether a car is located in a door zone even if a position detection device provided on the car breaks down can be exhibited.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)

Claims (4)

  1. Aufzugsystem (100), das eine Kabine (1), die sich in einem Schacht (4) nach oben und nach unten bewegt, ein Gegengewicht (3), das sich mit der Kabine (1) nach oben und nach unten bewegt, ein Seil (2), wovon ein Ende mit der Kabine (1) verbunden ist und wovon das andere Ende mit dem Gegengewicht (3) verbunden ist, und einen Motor (5), der das Seil (2) antreibt, umfasst, wobei das Aufzugsystem (100) ferner Folgendes umfasst:
    eine zu detektierende Platte (11, 11a, 11b), die im Schacht (4) vorgesehen ist,
    eine Kabinenposition-Detektionsvorrichtung (10), die an der Kabine (1) vorgesehen ist und konfiguriert ist, die zu detektierende Platte (11, 11a, 11b) zu detektieren,
    eine Kabinenbewegungsbetrag-Messvorrichtung, die konfiguriert ist, einen Bewegungsbetrag der Kabine (1) zu messen, und
    eine Steuervorrichtung (20), die konfiguriert ist, die Kabinenposition-Detektionsvorrichtung (10) und die Kabinenbewegungsbetrag-Messvorrichtung zu steuern, wobei
    die Steuervorrichtung (20) Folgendes enthält:
    eine Türbereichs-Detektionseinheit (12), die konfiguriert ist, mit der Kabinenposition-Detektionsvorrichtung (10) einen Türbereich zu detektieren, der ein zu öffnender/zu schließender Bereich einer Tür der Kabine (1) ist,
    eine Kabinenposition-Berechnungseinheit (16), die konfiguriert ist, eine Position der Kabine (1) zu berechnen, die mit der Kabinenbewegungsbetrag-Messvorrichtung gemessen wird, und
    eine Türbereichs-Bestimmungseinheit (18), die konfiguriert ist, auf der Grundlage der Position der Kabine (1), die in der Kabinenposition-Berechnungseinheit (16) berechnet wird, zu bestimmen, ob die Kabine (1) im Türbereich angeordnet ist, wenn bestimmt wird, dass die Kabinenposition-Detektionseinheit (10) versagt hat,
    dadurch gekennzeichnet, dass das System ferner Folgendes umfasst:
    eine Kabinenposition-Korrektureinheit (17), die konfiguriert ist, eine Differenz zwischen einer Position der zu detektierenden Platte (11, 11a, 11b), die im Voraus aufgezeichnet wird, und der Position der Kabine (1), die in der Kabinenposition-Berechnungseinheit (16) berechnet wird, zu berechnen, wenn die zu detektierende Platte (11, 11a, 11b) während des Fahrens der Kabine (1) durch die Kabinenposition-Detektionsvorrichtung (10) detektiert worden ist, und eine Korrektur durchzuführen, derart, dass die Position der Kabine (1), die in der Kabinenposition-Berechnungseinheit (16) berechnet worden ist, auf die Position der zu detektierenden Platte (11, 11a, 11b), die im Voraus aufgezeichnet worden ist, eingestellt wird, wobei
    die Kabinenposition-Korrektureinheit (17) konfiguriert ist, die Korrektur durchzuführen, wenn die Differenz zwischen der Position der zu detektierenden Platte (11, 11a, 11b), die im Voraus aufgezeichnet wird, und der Position der Kabine (1), die in der Kabinenposition-Berechnungseinheit (16) berechnet worden ist, in einen ersten vorgegebenen Schwellenwert fällt, und eine Schwellenwert-Überschreitungsaufzeichnung zu hinterlassen, wenn die Differenz zwischen der Position der zu detektierenden Platte (11, 11a, 11b), die im Voraus aufgezeichnet wird, und der Position der Kabine (1), die in der Kabinenposition-Detektionsvorrichtung (10) berechnet wird, den ersten vorgegebenen Schwellenwert überschreitet, und wobei
    die Steuervorrichtung (20) konfiguriert ist,
    dann, wenn die Schwellenwert-Überschreitungsaufzeichnung vorhanden ist, zu bestimmen, dass sich die Kabine (1) nicht im Türbereich befindet, und
    dann, wenn die Schwellenwert-Überschreitungsaufzeichnung nicht vorhanden ist, eine Differenz zwischen einer Position eines Bodens eines Stockwerks, in dem die Kabine (1) angehalten hat, wobei die Position im Voraus aufgezeichnet wird, und der Position der Kabine, die durch die Kabinenposition-Berechnungseinheit (16) berechnet wird, zu berechnen und zu bestimmen, dass sich die Kabine (1) im Türbereich befindet, wenn die Differenz in einen zweiten vorgegebenen Schwellenwert fällt, und
    zu bestimmen, dass sich die Kabine (1) nicht im Türbereich befindet, wenn die Differenz zwischen der Position eines Bodens eines Stockwerks, in dem die Kabine (1) angehalten hat, wobei die Position im Voraus aufgezeichnet wird, und der Position der Kabine (1) die durch die Kabinenposition-Berechnungseinheit (16) berechnet wird, den zweiten Schwellenwert überschreitet.
  2. Aufzugsystem (100) nach Anspruch 1, wobei die Kabinenbewegungsbetrag-Messvorrichtung eine Pulserzeugungsvorrichtung (7, 15) ist, die einen Puls gemäß dem Bewegungsbetrag der Kabine (1) ausgibt.
  3. Aufzugsystem (100) nach Anspruch 2, wobei die Pulserzeugungsvorrichtung (7) mit dem Motor (5) verbunden ist und konfiguriert ist, einen Puls gemäß der Drehung des Motors (5) zu erzeugen.
  4. Aufzugsystem (100) nach Anspruch 2, das ferner Folgendes umfasst: ein Regulatorseil (14), das mit der Kabine (1) verbunden ist und mit der Kabine (1) angetrieben wird, und einen Regulator (13), um den das Regulatorseil (14) gewickelt ist und der mit dem Regulatorseil (14) gedreht wird, wobei die Pulserzeugungsvorrichtung (15) mit dem Regulator (13) verbunden ist und konfiguriert ist, einen Puls gemäß der Drehung des Regulators (13) zu erzeugen.
EP16896839.4A 2016-03-30 2016-03-30 Aufzugsystem Active EP3438033B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/060334 WO2017168619A1 (ja) 2016-03-30 2016-03-30 エレベーターシステム

Publications (3)

Publication Number Publication Date
EP3438033A1 EP3438033A1 (de) 2019-02-06
EP3438033A4 EP3438033A4 (de) 2019-12-18
EP3438033B1 true EP3438033B1 (de) 2021-06-16

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EP (1) EP3438033B1 (de)
JP (1) JP6591660B2 (de)
CN (1) CN109071150B (de)
WO (1) WO2017168619A1 (de)

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CN111051233B (zh) * 2017-09-07 2021-05-18 三菱电机株式会社 电梯***
EP3492419B1 (de) * 2017-12-01 2020-06-10 Otis Elevator Company Sicherheitssystem für einen aufzug, aufzugsystem und verfahren zum betrieb eines aufzugsystems
JP6796053B2 (ja) * 2017-12-22 2020-12-02 株式会社日立製作所 エレベーター制御装置およびエレベーター制御方法
JP6895136B2 (ja) * 2018-04-26 2021-06-30 三菱電機株式会社 エレベーターの制御装置
WO2021002107A1 (ja) * 2019-07-02 2021-01-07 株式会社日立製作所 エレベーター装置
JP7289360B2 (ja) * 2019-10-10 2023-06-09 株式会社日立製作所 エレベーターシステム
JP7435881B1 (ja) 2023-05-25 2024-02-21 三菱電機ビルソリューションズ株式会社 エレベーター装置

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Publication number Publication date
CN109071150A (zh) 2018-12-21
CN109071150B (zh) 2021-05-11
JP6591660B2 (ja) 2019-10-16
EP3438033A4 (de) 2019-12-18
JPWO2017168619A1 (ja) 2018-08-09
WO2017168619A1 (ja) 2017-10-05
EP3438033A1 (de) 2019-02-06

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