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WO2020031284A1 - Système de diagnostic d'ascenseur - Google Patents

Système de diagnostic d'ascenseur Download PDF

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Publication number
WO2020031284A1
WO2020031284A1 PCT/JP2018/029711 JP2018029711W WO2020031284A1 WO 2020031284 A1 WO2020031284 A1 WO 2020031284A1 JP 2018029711 W JP2018029711 W JP 2018029711W WO 2020031284 A1 WO2020031284 A1 WO 2020031284A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
door
landing
elevator
unit
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.)
Ceased
Application number
PCT/JP2018/029711
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English (en)
Japanese (ja)
Inventor
聡 西江
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 Building Systems Co Ltd
Original Assignee
Hitachi Building Systems Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Building Systems Co Ltd filed Critical Hitachi Building Systems Co Ltd
Priority to JP2020535389A priority Critical patent/JP6987255B2/ja
Priority to CN201880095001.5A priority patent/CN112384462B/zh
Priority to PCT/JP2018/029711 priority patent/WO2020031284A1/fr
Publication of WO2020031284A1 publication Critical patent/WO2020031284A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/02—Position or depth indicators
    • 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
    • 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

Definitions

  • the present invention relates to an elevator diagnosis system for detecting an abnormality in a landing error of a car.
  • a shielding plate serving as a reference for position detection is installed at a predetermined position in the hoistway, and the shielding plate detection device provided in the car detects the shielding plate.
  • the car has been stopped at a desired landing position by controlling the car moving distance based on the detection position.
  • a desired landing position control is realized by controlling the landing position of the car based on the landing door while reducing the number of parts of the elevator system (Patent Document 1). 1).
  • Patent Literature 1 since it is necessary to use a control signal of an elevator system to measure a landing position, a relay-type elevator in which a control signal does not exist in the first place, and an elevator made by another company in which the meaning of the control signal is unknown, When an elevator system that cannot acquire a significant control signal is to be diagnosed, there has been a problem that it is not possible to measure a landing position or diagnose a landing error.
  • the present invention provides an elevator diagnostic system capable of detecting an abnormality even when the landing error is enlarged due to aging or the like, even when an elevator system that cannot acquire a significant control signal is to be diagnosed.
  • the purpose is to provide.
  • a landing door detection unit that is provided on the car door of the passenger car and detects the landing door
  • an acceleration measurement unit that is provided on the car door and measures acceleration
  • a moving amount measuring unit that measures a moving amount of the car from when the landing door detecting unit detects the landing door to when the car door is opened as a landing position after the acceleration measuring unit detects the deceleration of the car
  • an abnormality diagnosis unit for diagnosing an abnormal landing of the car on the basis of the amount of movement.
  • a hall door detection unit that detects the hall door
  • an acceleration measurement unit that is provided on the car door and measures acceleration
  • a travel distance measuring unit that measures the travel distance of the car from when the landing door detection unit detects the landing door to when the car stops as the landing position
  • an abnormal landing of the car based on the travel distance
  • an abnormality diagnosis unit for diagnosing the abnormality.
  • the elevator diagnosis system of the present invention even when an elevator system that cannot acquire a significant control signal is to be diagnosed, it is possible to detect the abnormality when the landing error is enlarged due to aging or the like. it can.
  • 1 is a schematic diagram of an elevator system according to one embodiment.
  • 1 is a configuration diagram of an elevator door opening and closing device according to one embodiment. The figure which shows the change of the speed and magnetic flux density observed during operation
  • 5 is a flowchart illustrating a diagnosis process of the elevator diagnosis system according to the embodiment.
  • 7 is a flowchart illustrating a process of detecting a current position of a car according to one embodiment.
  • FIG. 1 is a schematic diagram of an elevator system according to one embodiment of the present invention.
  • the elevator system of the present embodiment includes a car 1 that moves up and down between a plurality of landings facing a hoistway, a car door 2 attached to an opening of the car 1, and a car door 2 that opens and closes.
  • the diagnostic device 12 is connected to an external control center 13 via a wired or wireless communication line.
  • the three-axis acceleration sensor 4, the three-axis magnetic sensor 5, and the diagnostic device 12 can be attached even after the elevator system is installed. Constitute an independent elevator diagnostic system.
  • FIG. 1 illustrates a building having two landings, the number of landings may be three or more.
  • the diagnostic device 12 diagnoses the presence or absence of an abnormality in the landing error ⁇ of the car 1 based on the output signals of the three-axis acceleration sensor 4 and the three-axis magnetic sensor 5 and detects the position of the car 1.
  • the diagnostic device 12 is specifically a computer including an arithmetic device such as a CPU, a main storage device such as a semiconductor memory, an auxiliary storage device such as a hard disk, and hardware such as a communication device and a speaker.
  • the arithmetic unit executes the program loaded in the main storage device while referring to the database recorded in the auxiliary storage device, thereby realizing the above-described car position detection unit 12a and the like. A description will be given while omitting various well-known techniques as appropriate.
  • FIG. 2 is a diagram showing the configuration of the car door 2 and the door opening / closing device 3.
  • the car door 2 includes a right door panel 2R and a left door panel 2L.
  • the door opening / closing device 3 includes a door rail 3a serving as a track for both door panels, a door machine 3b for generating driving force for both door panels, a door driving belt 3c for transmitting driving force generated by the door machine 3b to both door panels, and a door. It comprises a door pulley 2d for a door driving belt 3c provided in a pair with the machine 3b.
  • the three-axis acceleration sensor 4 and the three-axis magnetic sensor 5 are arranged such that the opening / closing direction of the car door 2 is x near the closed end of the left door panel 2L and substantially in the middle in the height direction.
  • the car and the car 1 are installed so that the vertical direction of the car 1 is the y-axis and the front-rear direction of the car 1 is the z-axis.
  • FIGS. 1 and 2 illustrate a configuration in which one 3-axis acceleration sensor 4 and one 3-axis magnetic sensor 5 are provided at substantially the center of the car door 2, respectively, the upper and lower parts of the car door 2 are respectively illustrated.
  • the three-axis acceleration sensor 4 and the three-axis magnetic sensor 5 may be provided in the configuration. Note that the two sensors do not necessarily need to be three-axis sensors, and may omit the function of detecting acceleration or magnetic flux density in a direction unnecessary for processing described later.
  • FIG. 3 is an example of changes in speed and magnetic flux density observed during operation of the elevator system. Specifically, the car 1 moves from the lower floor, which is the standby floor, to the upper floor, which is the destination floor, After the car door 2 is opened and the passenger at the landing on the upper floor gets into the car 1, the elevator speed of the car 1, the opening / closing speed of the car door 2, which is observed until the car door 2 closes, and 3 3 illustrates the outputs of the axial magnetic sensor 5 in the z-axis direction and the x-axis direction.
  • FIGS. 3A and 3B show the speeds v y and v x obtained by integrating the y-axis acceleration a y and the x-axis direction acceleration a x detected by the three-axis acceleration sensor 4. These correspond to the ascending and descending speed of the car 1 (positive is the ascending speed, negative is the descending speed) and the opening and closing speed of the car door 2 (positive is the closing speed and negative is the opening speed). Further, FIG.
  • (d) is a magnetic flux density of a three-axis magnetic sensor 5 detects the z-axis direction M z and x-axis direction of the magnetic flux density M x, respectively, landing doors 10 direction of the metal detector This corresponds to a state (Low is detected and High is not detected) and the open / closed state of the car door 2 (Low is closed and High is open).
  • there to open and close in conjunction with the landing doors 10 Wakago door 2 respectively at time t f from time t c, the opening start time of landing doors 10, open completion time, closing the start time, even in the closed completion time.
  • the car 1 moves from the standby floor (lower floor) to the destination floor (upper floor), as shown in FIG. 3A, the car 1 passes through an acceleration period, a constant speed period, and a deceleration period in this order. Reach the destination floor (upper floor).
  • the magnetic flux density M z which corresponds to the longitudinal direction of the car 1 is increased.
  • the magnetic flux density Mz decreases because the vehicle approaches the landing door on the upper floor of the standby floor (lower floor), and the magnetic flux density Mz increases again as the distance from the landing door increases.
  • step S1 the traveling state detecting unit 12d compares the absolute value of the velocity v y obtained by integrating the acceleration a y is the output of the three-axis acceleration sensor 4, the predetermined threshold v Y_th (e.g. 8m / min) If the absolute value of the speed v y is larger, it is determined that the car 1 is traveling, and the process proceeds to the next step. On the other hand, if the absolute value of the speed v y is smaller, step S1 is repeated.
  • the predetermined threshold v Y_th e.g. 8m / min
  • step S2 when detecting the deceleration of the speed v y , the traveling state detection unit 12d determines that the car 1 has approached the destination floor and has started deceleration, and proceeds to the next step. On the other hand, when deceleration cannot be detected, the process returns to step S1.
  • step S3 the car position detector 12a detects the landing door 10 on the destination floor. Specifically, the car position detection unit 12a monitors the magnetic density Mz of the three-axis magnetic sensor 5, and when the magnetic density Mz becomes smaller than a predetermined threshold Mz_th , the three-axis magnetic sensor 5 attached to the car 1 It is determined to have reached the end of the hall door 10 of the destination floor (the time t b of Figure 3 (c)). On the other hand, if the magnetic density Mz is larger, step S3 is repeated.
  • step S4 the car movement amount measuring unit 12c measures the movement amount 1 of the car 1 after reaching the landing door 10 on the destination floor based on the acceleration ay output from the three-axis acceleration sensor 4.
  • step S5 the car position detection unit 12a confirms the current position (current floor F) of the car 1 by referring to the processing result (described later) of FIG. 5 executed in parallel with the processing of FIG. Then, the data is transmitted to the abnormality diagnosis unit 12e.
  • step S6 the car door open / close detection unit 12b detects the open / closed state of the car door 2. Specifically, the car door close detection unit 12b monitors the magnetic flux density M x is the output of the three-axis acceleration sensor 4, if it is larger than the predetermined threshold M X_th, 3 axes attached to the left door panel 2L The magnetic sensor 5 moves away from the right door panel 2R, determines that the car door 2 is in the open state (time tc in FIG. 3D ), and transmits a door opening operation detection signal to the car movement amount measuring unit 12c. On the other hand, if the direction of the magnetic density M x is small, the flow returns to step S3.
  • the opening and closing state of the car door 2 may determine the opening and closing state of the car door 2 based on the change in V x indicating the opening and closing speed of the car door 2 .
  • step S7 the car movement amount measurement unit 12c ends the measurement of the movement amount l when the door opening operation detection signal is received from the car door opening / closing detection unit 12b, and sets the measured movement amount l as the landing position L. This is transmitted to the diagnosis unit 12e.
  • steps S6 and S7 the movement amount l of the car 1 from the detection of the landing door 10 to the start of opening the car door 2 is set to the landing position L, but from the detection of the landing door 10 to the stop of the car 1
  • the moving amount 1 of the car 1 may be set as the landing position L.
  • step S8 the abnormality diagnosing unit 12e, either confirm the initial value L 0 of the landing position L that has currently corresponding to floor F obtained in step S5 is registered, if the initial value L 0 is not registered, in step S9, and stored in the initial value storage unit 12f as an initial value L 0 which currently corresponds to the floor F implantation position L obtained in step S7. On the other hand, if the initial value L 0 corresponding to the current floor F has been registered, the process proceeds to step S10.
  • step S10 the landing position L measured, implantation error storing difference between the initial value L 0 of the current stored in the initial value storage unit 12f corresponding to floor F, as implantation error ⁇ of the current floor F
  • the information is stored for each floor in the section 12g.
  • step S11 the abnormality diagnosis unit 12e detects an abnormality in the landing error ⁇ . Specifically, the abnormality diagnosis unit 12e compares the implantation error ⁇ obtained in step S10 with a predetermined threshold ⁇ th (for example, 20 mm), and when the implantation error ⁇ is larger, Is determined to be abnormal, and the process proceeds to step S12. On the other hand, if the landing error ⁇ is smaller, it is determined that there is no abnormality, and the processing in FIG. 4 ends.
  • a predetermined threshold ⁇ th for example, 20 mm
  • step S12 the abnormality diagnosing unit 12e transmits an alarm instruction to the abnormality alarming unit 12h.
  • the abnormality notification unit 12h Upon receiving the notification command, the abnormality notification unit 12h notifies the control center 13 of the current floor F where the abnormality has occurred and the landing error ⁇ as a pair of information.
  • the control center 13 that has received the abnormality report from the diagnostic device 12 contacts a specialized maintenance person and requests a work to correct the landing error ⁇ on the floor where the abnormality has occurred.
  • FIG. 5 is a process performed in parallel with FIG.
  • the maintenance staff uses a setting tool (not shown) to determine the total floor number F max and the initial stop floor F 0 of the elevator system. Registered.
  • step S51 the car position detection unit 12a determines whether the car 1 is traveling. This processing is equivalent to step S1 in FIG. If the vehicle is running, the process proceeds to step S52.
  • step S52 the car position detection unit 12a monitors the magnetic flux density Mz output from the three-axis magnetic sensor 5, and if the magnetic flux density Mz decreases, that is, if any metal is detected, the process proceeds to step S53.
  • step S53 the car position detection unit 12a uses the acceleration a y output from the three-axis acceleration sensor 4 to measure the amount of movement l of the car 1 in the y-axis direction during metal detection.
  • step S54 the car position detector 12a determines whether the metal detected in step 52 is the landing door 10. Specifically, the car position detection unit 12a compares the movement amount l obtained in step S53 with a predetermined threshold lth , and when the movement amount l is larger, determines that the metal being detected is the landing door 10. to decide.
  • the threshold l th may be set to any value that can detect the landing door 10. For example, the following value is set so that other metal devices in the hoistway are not determined to be the landing door 10. Should be set.
  • step S55 the car position detection unit 12a acquires the traveling direction information of the car 1 from the traveling state detection unit 12d, and if the traveling direction is rising, the current floor obtained by adding the first floor in step S56. Update to F. On the other hand, if the traveling direction is down, the current floor F is updated in step S57 by subtracting the first floor.
  • the control signals of the control device of the elevator system are used by using the output signals of the acceleration sensor and the magnetic sensor installed on the car door of the car. Without this, it is possible to diagnose an abnormality in the landing position of the car due to the influence of the aging of the elevator system or the like.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

Selon l'invention, dans le passé, étant donné qu'un signal de commande pour un ascenseur est nécessaire pour mesurer la position de palier d'un ascenseur tel qu'un ascenseur de type relais à partir duquel un signal de commande significatif ne peut pas être acquis, une mesure ou un diagnostic pour la position de palier ne pouvait pas être effectué. Par conséquent, la présente invention concerne un système de diagnostic d'ascenseur, comprenant : une unité de détection de porte palière, qui est disposée dans une porte de cabine d'une cabine et qui détecte une porte palière ; une unité de mesure d'accélération, qui est disposée dans la porte de cabine et qui mesure une accélération ; et une unité de mesure de quantité de déplacement, qui mesure, en tant que position de palier, une quantité de déplacement de la cabine, qui se déplace à partir d'un moment où l'unité de détection de porte palière détecte la porte palière, après que l'unité de mesure d'accélération détecte une décélération de la cabine, jusqu'à un moment où la porte de cabine s'ouvre ; et une unité de diagnostic d'anomalie, qui diagnostique, sur la base de la quantité de déplacement, une anomalie de palier de la cabine, même lorsqu'un système d'ascenseur, à partir duquel un signal de commande significatif ne peut pas être acquis, est utilisé en tant que cible de diagnostic, l'anomalie pouvant être détectée lorsqu'une erreur de palier est étendue en raison d'une détérioration dans le temps, etc.
PCT/JP2018/029711 2018-08-08 2018-08-08 Système de diagnostic d'ascenseur Ceased WO2020031284A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020535389A JP6987255B2 (ja) 2018-08-08 2018-08-08 エレベータ診断システム
CN201880095001.5A CN112384462B (zh) 2018-08-08 2018-08-08 电梯诊断系统
PCT/JP2018/029711 WO2020031284A1 (fr) 2018-08-08 2018-08-08 Système de diagnostic d'ascenseur

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113716406A (zh) * 2020-05-25 2021-11-30 株式会社日立大厦系统 电梯诊断装置以及电梯诊断方法
WO2021253660A1 (fr) * 2020-06-18 2021-12-23 猫岐智能科技（上海）有限公司 Procédé et système de détermination d'événement dangereux dans un ascenseur
JP2022010769A (ja) * 2020-06-29 2022-01-17 株式会社日立ビルシステム かご位置特定装置およびかご位置特定方法
WO2024127802A1 (fr) * 2022-12-14 2024-06-20 株式会社デンソー Système d'alimentation électrique sans contact, dispositif de réception d'énergie et dispositif de transmission d'énergie

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* Cited by examiner, † Cited by third party
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US11767194B2 (en) * 2019-01-28 2023-09-26 Otis Elevator Company Elevator car and door motion monitoring

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54146364A (en) * 1978-05-10 1979-11-15 Hitachi Ltd Elevator position detecting apparatus
JPS5882975A (ja) * 1981-11-12 1983-05-18 三菱電機株式会社 エレベ−タ管理装置
JPS63258381A (ja) * 1987-04-16 1988-10-25 北原　一孝 エレベ−タの停止位置制御装置
JPH0692559A (ja) * 1992-09-17 1994-04-05 Hitachi Building Syst Eng & Service Co Ltd エレベータの異常検出装置
WO2009150251A2 (fr) * 2008-06-13 2009-12-17 Inventio Ag Ascenseur et procédé de maintenance d'un ascenseur de ce type
JP2012180132A (ja) * 2009-06-29 2012-09-20 Mitsubishi Electric Corp エレベータ装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113716406A (zh) * 2020-05-25 2021-11-30 株式会社日立大厦系统 电梯诊断装置以及电梯诊断方法
JP2021185107A (ja) * 2020-05-25 2021-12-09 株式会社日立ビルシステム エレベータ診断装置、および、エレベータ診断方法
JP7284735B2 (ja) 2020-05-25 2023-05-31 株式会社日立ビルシステム エレベータ診断装置、および、エレベータ診断方法
WO2021253660A1 (fr) * 2020-06-18 2021-12-23 猫岐智能科技（上海）有限公司 Procédé et système de détermination d'événement dangereux dans un ascenseur
JP2022010769A (ja) * 2020-06-29 2022-01-17 株式会社日立ビルシステム かご位置特定装置およびかご位置特定方法
JP7395433B2 (ja) 2020-06-29 2023-12-11 株式会社日立ビルシステム かご位置特定装置およびかご位置特定方法
WO2024127802A1 (fr) * 2022-12-14 2024-06-20 株式会社デンソー Système d'alimentation électrique sans contact, dispositif de réception d'énergie et dispositif de transmission d'énergie

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JP6987255B2 (ja) 2021-12-22
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CN112384462A (zh) 2021-02-19

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