EP2250115A1 - Escalier roulant ou trottoir roulant - Google Patents

Escalier roulant ou trottoir roulant

Info

Publication number
EP2250115A1
EP2250115A1 EP09710863A EP09710863A EP2250115A1 EP 2250115 A1 EP2250115 A1 EP 2250115A1 EP 09710863 A EP09710863 A EP 09710863A EP 09710863 A EP09710863 A EP 09710863A EP 2250115 A1 EP2250115 A1 EP 2250115A1
Authority
EP
European Patent Office
Prior art keywords
escalator
detectors
moving walkway
detector
control electronics
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
Application number
EP09710863A
Other languages
German (de)
English (en)
Other versions
EP2250115B1 (fr
Inventor
Antti Plathin
Dirk Lange
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.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Publication of EP2250115A1 publication Critical patent/EP2250115A1/fr
Application granted granted Critical
Publication of EP2250115B1 publication Critical patent/EP2250115B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B66B29/005—Applications of security monitors

Definitions

  • the invention relates to an escalator or a moving walkway which has a device for monitoring the presence of steps or pallets.
  • Escalators and moving walkways must be equipped in accordance with applicable domestic and foreign safety regulations in such a way that they are automatically shut down as soon as problems arise in the area of critical points.
  • EP 1289 871 discloses a device which uses a redundant method to safeguard the function of one or more missing-step detectors.
  • the associated hardware cost is comparatively large, especially if the staircase is operated in both directions.
  • the object of the invention is achieved by the following measures.
  • the escalator or moving walk with two directions usually has a step or pallet band, which is deflected in two opposite deflection. It contains a device for monitoring the presence of steps or pallets of the step or pallet belt.
  • This device now has at least one first detector, which is provided for a detection function in the first direction of travel, and at least one second detector, which is provided for the same detection function in the second direction of travel.
  • the first and second detector are in operative connection with an evaluation and control electronics, which stops the drive of the escalator or moving walkway when detecting missing steps or pallets within the step or pallet band. WE It is important here that the evaluation and control electronics compares the signals of the first and second detectors with the identical detection function for the different directions of travel with each other in order to derive a signal for stopping the escalator / moving walkway.
  • the invention can also be formulated in such a way that the signals are compared by two detectors, of which the distance of the first detector to the first deflection region or to the first comb plate is less than to the second deflection region or to the second deflection region second comb plate is, and the distance of the second detector to the second deflection region or the second comb plate is less than the first deflection region or the first comb plate.
  • the invention is here defined by the arrangement of the two detectors, wherein here also a plurality of first and second detectors for different monitoring functions can be used, as described in more detail in the description.
  • phase offset in the signal conditioning the comparison of these signals is not a problem, so that it is possible to detect immediately by simply comparing the signals, possibly using a phase shift, if the relations of the two signal profiles change, be it through a lack of a stage Breakage of a line, failure of a detector or signal conditioning, eg a microprocessor.
  • this invention enables the redundant monitoring of mis-detection (detection of a faulty or missing stage) for both directions of travel.
  • detectors for one direction of travel can then be used for different functions, e.g. Detecting a misstep in the return strand to prevent it from entering the visible region, detecting different regions, e.g. Axis and steps or pallet body or surface, detecting misregistration in the visible area to prevent it from entering the comb plate.
  • the detectors are arranged at a defined minimum distance from the comb plate or from the deflection region.
  • the typical stopping distance of the escalator / moving walkway is between 30 cm and 1.5 m. The distance should be selected such that this wake of the escalator is ensured before the Fehllace leaves from below the comb lath or enters from above into the comb plate. A distance to the comb plate or the deflection of 50cm to 3 m would therefore be advantageous.
  • the signals of the detectors preferably after processing by the microprocessor, either in a central control or in both microprocessors.
  • This comparison generally takes place by subtraction or summation of both signals, but may also be formed differently, especially by means of digital signal processing. It is essential that differences that occur due to the comparison in the signal pattern of the two detectors or after preparation by the microprocessors are recognized immediately. If a missing stage is detected or if a detector fails, if a supply line breaks or if a microprocessor fails, all of them will fail Operations immediately detected as a change in the ratio of the two comparison patterns relative to each other. It is then immediately forwarded to the control of the escalator / moving walkway a signal for immediate shutdown of the drive and / or braking the escalator / moving walkway.
  • the distance between the first detector and the first deflection region or the first comb plate is preferably less than the second deflection region or the second comb plate, and the distance between the second detector and the second deflection region or the second comb plate is less than the first deflection region or the first comb plate ,
  • the first and second detectors are equidistant from their respective closer deflection region or closer comb plate, so that a symmetrical function of the function detection (misalignment at the top or bottom or at different locations of the stage / pallet) is ensured in both directions of travel.
  • first and second upper detectors are preferably arranged in the area of the visible upper run of the escalator / moving walk.
  • first and second lower detectors are arranged in the area of the return run of the escalator / moving walk.
  • the evaluation and control electronics for the first detector includes a first microprocessor and the second detector, a second microprocessor, wherein the first and second processor operate independently and monitor each other. In this way, the detection function (miss level), the monitoring of the detector activity, the wiring and the operation of the signal processing can be simultaneously checked redundantly.
  • the microprocessors are preferably connected to safety contacts for immediate shutdown of the drive of the escalator or moving walk for fast response.
  • a plurality of first and second detectors are arranged at different heights on the escalator or directed to different heights to detect different areas of the step or pallet.
  • the detector or detectors are preferably aligned with the bolt, the step or pallet roller provided outside the respective drive train.
  • processors exchange status messages of the respective operating circumstance on the one hand of the detectors and on the other hand of their own state within predefinable time intervals with one another.
  • the subject invention now allows the contactless detection of missteps or pallets due to characteristic and always recurring features. The same are available at each stage or pallet.
  • each stage or pallet can be used, which usually cooperates with a roller which rolls on a guide and is therefore always arranged at the same height.
  • the detector or detectors are preferably positioned in the region of the frame via a respectively assigned holder and are aligned with the characteristic feature, for example the pin of the stepped or pallet rollers provided outside the drive train.
  • a redundant evaluation is now possible, wherein in case of failure of a processor then still active generates a corresponding error message, so that a repair veran veran can be and the escalator or the walk is stopped if necessary.
  • the subject matter of the invention is used in particular when strict guidelines are given in the relevant directives of some countries in order to provide redundancy of the collection and thus a further increase in security.
  • the signals of the detectors are transmitted wirelessly, for example in a conventional manner via radio, ultrasound or infrared to the control electronics.
  • both the detectors and the control electronics with a corresponding wireless sen- Reception equipment is equipped.
  • This has the advantage of avoiding wiring problems that can easily occur in the wiring of the detectors very remotely located at the opposite ends of the escalator.
  • the positioning of both the detectors and the control electronics can be chosen freely when the, preferably all, detectors communicate wirelessly with the control electronics.
  • the control electronics can be arranged very advantageous in this case, together with the main control of the escalator or the moving walkway, for example in a main control cabinet. This provides better accessibility to the control components as well as a space-saving accommodation of the different control components.
  • the detector signals can also be transmitted to at least one device which monitors the state or the activity of the detectors. In this way, the safety of the escalator / moving walkway can be increased.
  • the signals of the components can be easily fed to different electronic components in the escalator, e.g. different microprocessors, and / or additional components of a safety circuit of the escalator and / or the main control of the escalator, without additional wiring.
  • the detectors are connected to transmitters or transceivers, and the control electronics 11 are also connected to a transceiver or transmitter so that they can communicate with all components.
  • the individual microprocessors of the control electronics are connected to their own receivers or transceivers, which increases the redundancy and thus the security of the device.
  • the control electronics may also include a wireless transmitter and / or transceiver and communicate with any components of the escalator and / or a central controller of an escalator or transport control device of the building.
  • Other units with which the detectors and / or the control electronics can communicate are z.
  • escalators moving walkways and elevators.
  • the communication between the units is preferably additionally or alternatively by means of performed a serial data bus and is preferably able to transmit status information of the control electronics and / or the safety switch.
  • passenger conveyor system in particular escalator or moving walkway comprising at least two spaced-apart components, which components are each connected to a device for wireless signal transmission, and via these devices, a data exchange between them takes place.
  • Passenger conveyor system according to the 1. arranged at which along the conveying path detectors are provided, which detectors are each connected to first means for wireless signal transmission, and which passenger conveyor system further comprises a control and / or monitoring electronics connected to a second transmitting / receiving device which communicates with the first transceivers of the detectors.
  • any data generating and / or receiving components of the passenger conveyor may be provided with means for mutual wireless signal transmission, such as e.g. B.
  • a main control and subgroup controls the passenger transport system
  • the main and / or subgroup controls different groups of passenger transport systems of a group of passenger transport facilities such.
  • the components that are connected to separate and / or interconnected wireless signal transmission devices may be one or more of the following components:
  • - devices for monitoring the status of the safety contacts of the escalator, as well as the contacts of the safety circuit e.g. Antechamber sensors, handrail inlet sensors, emergency stop switches, etc.
  • the individual detectors can be distance sensors (proximity sensors) which work on an inductive or capacitive principle.
  • the detectors can also work electromagnetically, for.
  • As light sensors ultrasonic sensors, infrared sensors, wireless sensors, which preferably operate on the reflection principle, but can also be used in the manner of a Lichthan vorhanss.
  • the detectors can be designed and / or arranged so that they can check whether:
  • one level is missing, one level is misaligned, one level is broken, one level is corroded, one level is dirty, one level is damaged.
  • the detectors can execute at least one, preferably several or all of these monitoring measures simultaneously.
  • the abovementioned malfunctions can be monitored by each detector at the same time, if the detector is arranged so that it detects all those parts of the stage whose temporally and spatially defined occurrence reliably precludes a malfunction in the above sense. So z.
  • a misaligned, damaged, corroded, or broken stage may reflect light in a manner other than an intact and / or precisely aligned stage.
  • the temporal waveform can be reliably evaluated by considering the speed of the escalator.
  • the invention can also be used to detect missing / misaligned / damaged parts of a properly positioned step / tread plate, e.g. B. cladding panels.
  • At least one, preferably two handrail speed detectors is provided, which is in signal communication with the control electronics, for example via bus or wireless.
  • at least one, preferably two motor speed detectors can be provided.
  • the output of these detectors is in signal communication with the control electronics.
  • the safety of the escalator taking into account the detectors for handrail speed, engine speed and tread monitoring can be improved, which detectors due to the more complex sensor analysis could not be integrated into safety chains, which are usually by simple on / off switch (eg Mosschliess- Detectors).
  • the control electronics preferably includes all functions that are connected to the detection, evaluation and control and / or regulation of the escalator or individual components of the escalator.
  • FIG. 1 schematic diagram of an escalator with implied safety device with detectors for missing stages
  • Fig. 2 partial representation of the safety device
  • FIG. 3 partial representation of the evaluation and control electronics from the escalator of Fig. 1 and 2 in conjunction with the detectors.
  • escalator 1 shows an escalator 1 with two deflection regions 2, 3 for the steps 4 of the step belt 5.
  • a first detector 7 is arranged, and in FIG the vicinity of the second deflection region 3 or at a defined distance from the second comb plate 44, a second detector V.
  • the two detectors are as lower detectors in the return strand 40 d. H. arranged in the invisible area of the escalator 1, in order to prevent a defective or missing step escapes into the visible range.
  • upper first and second detectors 7 ", 7'" in the upper run 42 i. be provided in the visible area of the escalator to prevent a defective stage in the visible area enters the area of a comb plate and there leads to injury or blockages.
  • the first and second detectors are located at a distance from the diverters or from the comb plate so that deceleration of the escalator is possible while maintaining adequate deceleration values without a defective stage entering the visible area or in the visible area enters the comb plate.
  • the lower first and second detectors 7, 7 ' are coupled via two respective microprocessors 16, 17, which mutually check the signals of the two lower detectors 7, 7' as well as the functioning of the respective other processor 17, 16 in a redundant manner.
  • the upper first and second detectors 7 ", 7 '" via two microprocessors 36, 37 are coupled to the signals of the two upper detectors 7, 7' 7 ", 7 '" and the operation of the other processor 37, 36 check each other redundantly.
  • the additional first and second detectors 7 "", 7 '"" are coupled in a manner not shown as the lower first and second detectors 7,7' and the upper first and second detectors 7 ", 7 '" via two microprocessors, respectively the signals of the two detectors as well as the functioning of the other processor in a redundant manner mutually check.
  • a step 4 can be seen, the drive element 8 articulated on the step 4 and a step roller 9.
  • the holder 6, which in this sketch represents the first and second invention, can also be seen Detectors 7, 7 ', 7 ", 7'” carries, which cooperate via a line 10 with an evaluation and control electronics 11 shown in Fig. 3 (Fig. 3).
  • the holder 6 is attached in the region of the frame 12.
  • the rolling on a guideway 13 step roller 9 has always the same distance for each stage 4, so that it is easily possible to align the lower first and second detectors 7, 7 'on the here not further recognizable bolt of the step roller 9, so selbiger represents a characteristic, recurring feature of each stage 4.
  • Fig. 3 shows a schematic diagram of the possible evaluation and control electronics 11, for the arrangement of the escalator / moving walk of Fig. 1 and 2, which is in operative connection with the first and second lower detectors 7, 7 ', in a predeterminable distance from the deflection 2, 3 of the escalator, or by the comb plates 43, 44 are positioned at the deflection of the escalator. It can also be seen a pallet strip 5 'including pallets 4' of an only indicated moving walkway. Each pallet 4 'is equipped with a pallet roller 9', which via a bolt 15 is connected to the respective pallet 4 '.
  • the first and second lower detectors 7, 7 ' are also here in the vicinity of their deflection area of the pallets 4' not shown further provided and aligned with the height of the pallet pin 15, which is a characteristic and recurring feature.
  • the evaluation and control electronics 11 includes two microprocessors 16, 17, which are connected to the first and second lower detectors 7, 7 '.
  • the microprocessors 16, 17 are connected to each other via data lines 18, so that a mutual monitoring is ensured.
  • the microprocessors 16, 17 not only control themselves for locally occurring disturbances, but also check whether the respective other microprocessor 16, 17 fed detector pulses are in the tolerance range.
  • the power supply of the so-called safety chain and on the other hand, the power supply of the evaluation and control electronics 11 are themselves designated.
  • the signals can simply the desired components in the control electronics 11 of the monitoring device for the steps of the escalator.
  • a shutdown of the drive of the moving walk is automatically triggered. If one of the detectors 7, 7 'no longer detects the characteristic feature, namely the pin 9' of a pallet 4 'within the intended time interval, this is transmitted via the signal lines 29, 30 to the respective microprocessor 16, 17, whereby a shutdown of the Drive is triggered.
  • the transmitter 11 In the normal case (escalator running) is a series of pulses (signals) before, the transmitter 11 also monitors damage to the detectors 7, 7 'and the lines 29, 30 itself. The signals move between 0 and 1. If one of the signals becomes constant 0 or 1, it can be assumed that there is damage in the area of a detector 7, 7 'or a line 29, 30. The drive is therefore stopped.

Landscapes

  • Escalators And Moving Walkways (AREA)

Abstract

L'invention concerne un escalier roulant ou un trottoir roulant, ayant deux sens de marche et comportant une bande à marches ou à palettes, qui se retourne dans deux zones de retournement opposées l'une à l'autre, et un dispositif pour surveiller la présence des marches (4) ou des palettes (4') de la bande à marches ou à palettes. Ledit dispositif comporte au moins un premier détecteur (7, 7'), qui est conçu pour fournir une fonction de détection, dans le premier sens de marche, et au moins un deuxième détecteur (7', 7''), qui est conçu pour fournir la même fonction de détection, dans le deuxième sens de marche, les premier et deuxième détecteurs (7,7') étant en connexion opérationnelle avec un système électronique d'analyse et de commande (11) qui, en cas de détermination d'absence de marches (4) ou de palettes (4') à l'intérieur de la bande à marches (5) ou à palettes (5'), immobilise l'entraînement de l'escalier roulant ou du trottoir roulant, le système électronique d'analyse et de commande comparant entre eux les signaux des premier et deuxième détecteurs (7, 7') avec la fonction de détection identique pour les différents sens de marche, afin d'obtenir un signal destiné à immobiliser l'escalier roulant ou le trottoir roulant. La présente invention permet de surveiller de manière redondante, avec seulement deux détecteurs, un dysfonctionnement dans les deux sens de marche. (Fig. 1)
EP09710863A 2008-02-15 2009-02-12 Escalier roulant ou trottoir roulant Not-in-force EP2250115B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009458A DE102008009458A1 (de) 2008-02-15 2008-02-15 Rolltreppe oder Rollsteig
PCT/EP2009/051658 WO2009101148A1 (fr) 2008-02-15 2009-02-12 Escalier roulant ou trottoir roulant

Publications (2)

Publication Number Publication Date
EP2250115A1 true EP2250115A1 (fr) 2010-11-17
EP2250115B1 EP2250115B1 (fr) 2012-11-21

Family

ID=40585497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09710863A Not-in-force EP2250115B1 (fr) 2008-02-15 2009-02-12 Escalier roulant ou trottoir roulant

Country Status (6)

Country Link
US (1) US20110011700A1 (fr)
EP (1) EP2250115B1 (fr)
CN (1) CN101952190A (fr)
DE (1) DE102008009458A1 (fr)
ES (1) ES2394901T3 (fr)
WO (1) WO2009101148A1 (fr)

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WO2011117089A1 (fr) * 2010-03-24 2011-09-29 Magna E-Car Systems Gmbh & Co Og Système de surveillance d'une cellule d'accumulation d'énergie
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DE102012003178B4 (de) 2012-02-17 2018-03-22 Kone Corp. Einrichtung zur Überwachung der Funktion einer Rolltreppe oder eines Rollsteiges
DE102012013704A1 (de) 2012-07-10 2013-06-20 Kone Corporation Sicherheitseinrichtung für eine Personenförderanlage
CN103264950B (zh) * 2013-05-29 2015-03-18 江南嘉捷电梯股份有限公司 自动人行道的踏板遗失装置
EP3080028B1 (fr) * 2013-12-12 2023-05-10 Otis Elevator Company Système de sécurité à utiliser dans un système d'entraînement
CN105873847B (zh) * 2014-01-06 2018-01-16 三菱电机株式会社 乘客输送机用梯级脱落检测装置
JP6246002B2 (ja) * 2014-01-30 2017-12-13 株式会社日立製作所 乗客コンベア
GB2526368B (en) * 2014-05-23 2019-10-09 Kerett Electronic Services Ltd Moving walkway safety system
US9346654B2 (en) * 2014-05-29 2016-05-24 Goldstein Biomedical Consultants Llc Regenerative power capture system for endless track escalators and moving walkways
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CN104071681B (zh) * 2014-06-19 2016-04-13 广州特种机电设备检测研究院 一种自动扶梯制停参数检测方法
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CN107662875B (zh) * 2016-07-29 2021-07-06 奥的斯电梯公司 乘客运输机的梯级与梳齿板的啮合状态监检测
US20180118522A1 (en) * 2016-10-28 2018-05-03 Otis Elevator Company Sensor on escalator landing plate
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Also Published As

Publication number Publication date
EP2250115B1 (fr) 2012-11-21
WO2009101148A1 (fr) 2009-08-20
DE102008009458A1 (de) 2009-08-20
ES2394901T3 (es) 2013-02-06
CN101952190A (zh) 2011-01-19
US20110011700A1 (en) 2011-01-20

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