EP1274644A1 - Method and device for adjusting the brake(s) of a device for transporting people - Google Patents

Method and device for adjusting the brake(s) of a device for transporting people

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Publication number
EP1274644A1
EP1274644A1 EP01925409A EP01925409A EP1274644A1 EP 1274644 A1 EP1274644 A1 EP 1274644A1 EP 01925409 A EP01925409 A EP 01925409A EP 01925409 A EP01925409 A EP 01925409A EP 1274644 A1 EP1274644 A1 EP 1274644A1
Authority
EP
European Patent Office
Prior art keywords
brake
processors
conveyor system
passenger conveyor
drive motor
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
EP01925409A
Other languages
German (de)
French (fr)
Other versions
EP1274644B1 (en
EP1274644B2 (en
Inventor
Sascha Neumann
Andreas Tautz
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.)
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Publication date
Family has litigation
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Application filed by Kone Corp filed Critical Kone Corp
Publication of EP1274644A1 publication Critical patent/EP1274644A1/en
Publication of EP1274644B1 publication Critical patent/EP1274644B1/en
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Publication of EP1274644B2 publication Critical patent/EP1274644B2/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00—Control of escalators or moving walkways

Definitions

  • the invention relates to a method for controlling the brake (s) of a passenger conveyor system, such as an escalator or a moving walk.
  • Escalators and escalators must be equipped in accordance with applicable domestic and foreign safety regulations so that they stop automatically before the speed exceeds, for example, 1.2 times the nominal speed. In the same way, a shutdown must be brought about as soon as faults occur in the area of the escalators or the escalator, for example when a safety switch is actuated.
  • Another disadvantage is that when the brake pads wear, the braking distance is extended, even if the brake is applied suddenly.
  • the aim of the subject matter of the invention is to design a method and a device for regulating the brake (s) of a passenger conveyor system, such as an escalator or a moving walkway, which allows the braking distance to be largely the same even when brake linings are worn, without causing personal injury.
  • This goal is achieved by a method for controlling the respective brake of a passenger conveyor system, such as an escalator or a moving walk, by monitoring the control signals of the drive motor and the brake by means of several processors, in the event of malfunctions occurring in the area of the passenger conveyor system, the brake suddenly applied the brake (s) is relieved in a defined manner upon detection of delay values and then the passenger conveyor system is shut down via the processors within a predefinable time interval.
  • a device for regulating the respective brake of a passenger conveyor system with at least two mutually monitoring processors which are connected to switching elements of the brake via driver elements.
  • the principle of the control device according to the invention is thus based on the safety regulations applicable at home and abroad.
  • This type of control of the brake (s) which has not yet been implemented in escalators and moving walks, corresponds to the current state of the art and also meets the relevant domestic and foreign safety standards.
  • the control is based on the fuzzy logic known per se.
  • a wide variety of minimum and maximum values are stored in the memory, by means of which at least one average value is generated, on which the processors or the braking behavior are based.
  • the respective brake remains released as in the previous state of the art. As before, the brake engages suddenly in the event of malfunctions. Are there additional malfunctions in the area of the control unit (at least one processor), i.e. If no delay is determined via the control unit, the brake remains applied and thus moves in the known prior art.
  • the control scheme provides that the respective brake is released again in a defined manner, whereby the state of full braking is improved in favor of the persons on the escalator or the moving walkway.
  • the people on the escalator or the moving walkway notice that the brake is applied when there is a brief deceleration.
  • the respective brake is vented again, so that the brake can then be shut down in a controlled manner within a braking distance corresponding to the safety standard and without an injury to persons.
  • the mutually monitoring processors form a so-called security system.
  • Each of the processors controls at least one driver element, since the processors themselves are not able to generate 24 V signals. This takes place in the area of the respective driver element, whose 24 V signal in turn serves as the control voltage for the respective switching element of the respective brake.
  • the switching element is usually a brake magnet.
  • the driver elements represent a two- or multi-channel system that can bring the brakes to a standstill even if one processor fails. In this respect, even in the event of a processor failure, the full braking of the passenger conveyor system already known in the prior art is ensured in any case.
  • the processors also act on control relays via which the drive motor can be switched off as soon as the brake is applied. This has the advantage that the braking force does not have to work against the running engine and thus possibly causes further damage here.
  • the single figure shows the control device 1 according to the invention. For simplification, only the components relevant to the invention are shown.
  • the drive motor 2 of an escalator or a moving walk (not shown further) and the brake 3 which can be brought into operative connection with it can be seen.
  • the control device 1 comprises two mutually monitoring microprocessors 4, 5. Each of the microprocessors 4, 5 is operatively connected to a driver element 6, 7. In addition, each of the microprocessors 4, 5 acts on an associated relay 8, 9.
  • the processors 4, 5 are in operative connection with one another via a signal line 10, so that their operating behavior can be mutually monitored. Via further lines 1 1, 1 2, 1 3, 14, the processors 4, 5 are in operative connection with the associated driver elements 6, 7.
  • Additional signal lines 1 5, 1 6 are provided between the drive motor 2 and the respective processor 4, 5.
  • the driver elements 6, 7 are operatively connected to one another via a line 1 7, which acts as a continuation of the same as line 1 7 'on switching elements of the brake 3, which are not shown.
  • the relays 8, 9 are connected to the drive motor 2 via switches 1 8, 1 9 and a single line 20. If there had previously been malfunctions in the area of the passenger conveyor system, the brake 3 would have applied suddenly, as a result of which the motor 2 would also have been stopped. The full braking would, however, under certain circumstances lead to people who are on the passenger conveyor system possibly falling down, since a sudden deceleration of the passenger conveyor system begins.
  • the control is based on the fuzzy logic known per se, with minimum and maximum values being stored in the area of the processors, so that at least one mean value given in accordance with the safety standards can be generated, on which the control scheme for the brake 3 is based.
  • the processors 4, 5 monitor each other so that they always have the same data status.
  • the control element of the brake 3 (not shown) remains energized, ie the brake 3 is relieved, so that the drive motor 2 can work without braking.
  • the drive motor 2 is stopped via the relays 8, 9 and the line 20, so that the braking energy acting does not have to work against the running motor.
  • the processors 4, 5 now determine deceleration values in the area of the drive motor 2, the control scheme according to the invention applies, namely that the brake 3 is relieved in a defined manner via the associated switching elements and the stopping of the passenger conveyor system within a predetermined braking distance and time interval corresponding to the safety standard is brought about.
  • the people on the passenger conveyor system thus feel a brief delay pulse, which is not continuous, but is rather canceled again, so that personal injury can no longer occur as a result of the regulation according to the invention.
  • the brake 3 is suddenly applied via the associated driver 6 or 7 and the line 1 7 or 1 7 ', ie a - as known in the prior art - brought about full braking.

Abstract

A method and arrangement for controlling the respective brake of a device for transporting people, such as an escalator or a moving pavement in that the control signals for the drive motors and the brake are monitored with the aid of several processors. If functional interruptions occur in the region of the device for transporting people, the brake is applied abruptly. If deceleration values are detected, the brake is relieved in a defined manner and the device for transporting people is thus stopped via the processors within a predetermined time interval.

Description

Verfahren und Einrichtung zur Regelung der Bremse(n) einer Personenförderanlage Method and device for controlling the brake (s) of a passenger conveyor system
Die Erfindung betrifft ein Verfahren zur Regelung der Bremse(n) einer Personenförderanlage, wie einer Rolltreppe oder eines Rollsteiges.The invention relates to a method for controlling the brake (s) of a passenger conveyor system, such as an escalator or a moving walk.
Rolltreppen und Rollsteige müssen gemäß geltenden in- und ausländischen Sicherheitsvorschriften so ausgerüstet sein, daß sie selbsttätig stillgesetzt werden, bevor die Geschwindigkeit beispielsweise den 1 ,2-fachen Wert der Nenngeschwindigkeit überschreitet. In gleicher Weise muß eine Stillsetzung herbeigeführt werden, sobald Störungen im Bereich der Rolltreppen oder des Rollsteiges auftreten, beispielsweise wenn ein Sicherheitsschalter betätigt wird.Escalators and escalators must be equipped in accordance with applicable domestic and foreign safety regulations so that they stop automatically before the speed exceeds, for example, 1.2 times the nominal speed. In the same way, a shutdown must be brought about as soon as faults occur in the area of the escalators or the escalator, for example when a safety switch is actuated.
Vielfach kommen bei Rolltreppen und Rollsteigen mechanische Bremsen, wie Backenbremsen, zum Einsatz, die bei derzeitiger Ansteuerung beim Auftreten eines Fehlers schlagartig einfallen.Mechanical escalators, such as shoe brakes, are often used in escalators and escalators, which occur suddenly when an error occurs with the current control.
Personen die auf der Rolltreppe oder dem Rollsteig befindlich sind, können, bedingt durch das schlagartige Einfallen der Bremse, unter Umständen hinfallen und sich verletzen.People who are on the escalator or the moving walkway may fall and injure themselves due to the sudden application of the brake.
Weiterhin nachteilig ist, daß sich bei Verschleiß der Bremsbeläge der Bremsweg verlängert, auch wenn die Bremse schlagartig einfällt.Another disadvantage is that when the brake pads wear, the braking distance is extended, even if the brake is applied suddenly.
Ziel des Erfindungsgegenstandes ist es, ein Verfahren und eine Einrichtung zur Regelung der Bremse(n) einer Personenförderanlage, wie einer Rolltreppe oder eines Rollsteiges zu konzipieren, die auch bei Verschleiß von Bremsbelägen einen weitestgehend gleichen Bremsweg erlaubt, ohne daß es zu Personenschäden kommt. Dieses Ziel wird erreicht durch ein Verfahren zur Regelung der jeweiligen Bremse einer Personenförderanlage, wie einer Rolltreppe oder eines Rollsteiges, indem die Steuersignale des Antriebsmotors und der Bremse mittels mehrerer Prozessoren überwacht werden, bei auftretenden Funktionsstörungen im Bereich der Personenförderanlage, die Bremse schlagartig zum Einfall gebracht wird, bei Erkennung von Verzögerungswerten die Bremse(n) definiert entlastet und sodann über die Prozessoren innerhalb eines vorgebbaren Zeitinervalles die Personenförderanlage stillgesetzt wird.The aim of the subject matter of the invention is to design a method and a device for regulating the brake (s) of a passenger conveyor system, such as an escalator or a moving walkway, which allows the braking distance to be largely the same even when brake linings are worn, without causing personal injury. This goal is achieved by a method for controlling the respective brake of a passenger conveyor system, such as an escalator or a moving walk, by monitoring the control signals of the drive motor and the brake by means of several processors, in the event of malfunctions occurring in the area of the passenger conveyor system, the brake suddenly applied the brake (s) is relieved in a defined manner upon detection of delay values and then the passenger conveyor system is shut down via the processors within a predefinable time interval.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den zugehörigen verfahrensgemäßen Unteransprüchen zu entnehmen.Advantageous developments of the subject matter of the invention can be found in the associated procedural subclaims.
Dieses Ziel wird auch erreicht durch eine Einrichtung zur Regelung der jeweiligen Bremse einer Personenförderanlage, mit mindestens zwei sich gegenseitig überwachenden Prozessoren, die über Treiberelemente mit Schaltelementen der Bremse verbunden sind.This goal is also achieved by a device for regulating the respective brake of a passenger conveyor system, with at least two mutually monitoring processors which are connected to switching elements of the brake via driver elements.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Einrichtung sind den zugehörigen gegenständlichen Unteransprüchen zu entnehmen.Advantageous developments of the device according to the invention can be found in the associated substantive subclaims.
Das Prinzip der erfindungsgemäßen Regeleinrichtung beruht somit in Anlehnung an die im In- und Ausland geltenden Sicherheitsvorschriften. Diese bei Rolltreppen und Rollsteigen bisher noch nicht verwirklichte Art der Regelung der Bremse(n) entspricht dem heutigen technischen Stand und genügt auch den einschlägigen in- und ausländischen Sicherheitsstandards.The principle of the control device according to the invention is thus based on the safety regulations applicable at home and abroad. This type of control of the brake (s), which has not yet been implemented in escalators and moving walks, corresponds to the current state of the art and also meets the relevant domestic and foreign safety standards.
Im Hinblick darauf, daß die Ansteuerung der Schaltelemente der Bremse(n) im Niederspannungsbereich (24 V) realisiert werden kann, ist in diesem Bereich auch keine bisher zum Einsatz gelangte 220 V-Spannung mehr gegeben, wodurch die Sicherheit weiterhin erhöht wird . Es kommen mindestens zwei Mikroprozessoren zum Einsatz, die sich einerseits gegenseitig überwachen und andererseits Steuersignale der Bremse sowie des Antriebsmotors kontrollieren, bzw. auf selbige regelnd einwirken.In view of the fact that the switching elements of the brake (s) can be controlled in the low-voltage range (24 V), there is no longer any 220 V voltage used in this area, which further increases safety. At least two microprocessors are used, which on the one hand monitor each other and on the other hand control the brake and drive motor control signals or act on them in a regulating manner.
Die Regelung basiert auf der an sich bekannten Fuzzy-Logik. Im Speicher sind unterschiedlichste Minimal- und Maximalwerte abgelegt, durch welche mindestens ein Mittelwert generiert wird, an welchem sich die Prozessoren bzw. des Bremsverhaltens orientieren.The control is based on the fuzzy logic known per se. A wide variety of minimum and maximum values are stored in the memory, by means of which at least one average value is generated, on which the processors or the braking behavior are based.
Die jeweilige Bremse bleibt wie beim bisherigen Stand der Technik gelüftet. Wie bisher fällt auch die Bremse bei auftretenden Störungen schlagartig ein. Sind zusätzliche Störungen im Bereich der Regeleinheit (mindestens eines Prozessors) gegeben, d.h. wird über die Regeleinheit keine Verzögerung festgestellt, bleibt die Bremse eingefallen und bewegt sich somit im bekannten Stand der Technik.The respective brake remains released as in the previous state of the art. As before, the brake engages suddenly in the event of malfunctions. Are there additional malfunctions in the area of the control unit (at least one processor), i.e. If no delay is determined via the control unit, the brake remains applied and thus moves in the known prior art.
Dies ist jedoch eher unwahrscheinlich, da infolge Redundanz der Prozessoren ein Verzögerungswert festgestellt wird, so daß das Regelschema (Fuzzy-Logik) in Gang gesetzt werden kann. Das Regelschema sieht vor, daß die jeweilige Bremse definiert wieder gelüftet wird, wodurch der Zustand der Vollbremsung zugunsten der auf der Rolltreppe bzw. dem Rollsteig befindlichen Personen verbessert wird. Die auf der Rolltreppe bzw. dem Rollsteig befindlichen Personen bemerken somit zwar, daß die Bremse einfällt, in dem einen kurzen Moment eine stärkere Verzögerung stattfindet. Sobald der oder die Prozessoren die Verzögerung erkannt haben, wird die jeweilige Bremse wieder entlüftet, so daß innerhalb eines dem Sicherheitsstandard entsprechenden Bremsweges und einstellbaren Zeitintervall die Bremse dann geregelt stillgesetzt werden kann, ohne daß es zu Personenschäden kommt. Die sich gegenseitig überwachenden Prozessoren bilden ein sogenanntes Sicherheitssystem. Jeder der Prozessoren steuert mindestens ein Treiberelement an, da die Prozessoren selber nicht in der Lage sind, 24 V Signale zu generieren. Dies findet im Bereich des jeweiligen Treiberelementes statt, dessen 24 V Signal wiederum dem jeweiligen Schaltelement der jeweiligen Bremse als Ansteuerspannung dient. Das Schaltelement ist in der Regel ein Bremsmagnet.However, this is rather unlikely since a delay value is determined as a result of redundancy of the processors, so that the control scheme (fuzzy logic) can be started. The control scheme provides that the respective brake is released again in a defined manner, whereby the state of full braking is improved in favor of the persons on the escalator or the moving walkway. The people on the escalator or the moving walkway notice that the brake is applied when there is a brief deceleration. As soon as the processor or processors have recognized the delay, the respective brake is vented again, so that the brake can then be shut down in a controlled manner within a braking distance corresponding to the safety standard and without an injury to persons. The mutually monitoring processors form a so-called security system. Each of the processors controls at least one driver element, since the processors themselves are not able to generate 24 V signals. This takes place in the area of the respective driver element, whose 24 V signal in turn serves as the control voltage for the respective switching element of the respective brake. The switching element is usually a brake magnet.
Die Treiberelemente stellen ein zwei- oder mehrkanaliges System dar, das auch bei Ausfall eines Prozessors die Vollbremsung herbei führen kann. Insofern ist auch bei Ausfall eines Prozessors in jedem Fall die bereits im Stand der Technik bekannte Vollbremsung der Personenförderanlage sichergestellt.The driver elements represent a two- or multi-channel system that can bring the brakes to a standstill even if one processor fails. In this respect, even in the event of a processor failure, the full braking of the passenger conveyor system already known in the prior art is ensured in any case.
Die Prozessoren wirken darüber hinaus auf Steuerrelais ein, über welche der Antriebsmotor abgeschaltet werden kann, sobald die Bremse einfällt. Damit ist der Vorteil verbunden, daß die wirkende Bremskraft nicht gegen den laufenden Motor arbeiten muß und somit gegebenenfalls hier weitere Schäden hervorruft.The processors also act on control relays via which the drive motor can be switched off as soon as the brake is applied. This has the advantage that the braking force does not have to work against the running engine and thus possibly causes further damage here.
Der Erfindungsgegenstand ist anhand eines Ausführungsbeispieles in der Zeichnung dargestellt und wird wie folgt beschrieben.The subject matter of the invention is illustrated in the drawing using an exemplary embodiment and is described as follows.
Die einzige Figur zeigt die erfindungsgemäße Regeleinrichtung 1 . Zur Vereinfachung sind lediglich die erfindungsrelevanten Bauteile dargestellt. Erkennbar ist der Antriebsmotor 2 einer nicht weiter dargestellten Rolltreppen oder eines Rollsteiges sowie die damit in Wirkverbindung bringbare Bremse 3. Die Regeleinrichtung 1 umfaßt zwei sich gegenseitig überwachende Mikroprozessoren 4,5. Jeder der Mikroprozessoren 4,5 steht mit einem Treiberelement 6,7 in Wirkverbindung. Darüber hinaus wirkt jeder der Mikroprozessoren 4,5 auf ein zugeordnetes Relais 8,9 ein. Die Prozessoren 4,5 stehen über eine Signalleitung 1 0 miteinander in Wirkverbindung, so daß deren Betriebsverhalten gegenseitig überwacht werden kann. Über weitere Leitungen 1 1 , 1 2, 1 3, 14, sehen die Prozessoren 4,5 mit den zugehörigen Treiberelementen 6,7 in Wirkverbindung. Weitere Signalleitungen 1 5, 1 6 sind zwischen dem Antriebsmotor 2 und dem jeweiligen Prozessor 4,5 vorgesehen. Die Treiberelemente 6,7 stehen über eine Leitung 1 7 miteinander in Wirkverbindung, welche als Fortsetzung derselben als Leitung 1 7' auf nicht weiter dargestellte Schaltelemente der Bremse 3 einwirkt. Die Relais 8,9 sind über Schalter 1 8, 1 9 sowie eine einzige Leitung 20 mit dem Antriebsmotor 2 verbunden. Bei bisher auftretenden Funktionsstörungen im Bereich der Personenförderanlage wäre die Bremse 3 schlagartig eingefallen, wodurch auch der Motor 2 stillgesetzt worden wäre. Die Vollbremsung würde jedoch unter Umständen dazu führen, daß auf der Personenförderanlage sich befindende Personen unter Umständen hinfallen können, da eine schlagartige Verzögerung der Personenförderanlage einsetzt.The single figure shows the control device 1 according to the invention. For simplification, only the components relevant to the invention are shown. The drive motor 2 of an escalator or a moving walk (not shown further) and the brake 3 which can be brought into operative connection with it can be seen. The control device 1 comprises two mutually monitoring microprocessors 4, 5. Each of the microprocessors 4, 5 is operatively connected to a driver element 6, 7. In addition, each of the microprocessors 4, 5 acts on an associated relay 8, 9. The processors 4, 5 are in operative connection with one another via a signal line 10, so that their operating behavior can be mutually monitored. Via further lines 1 1, 1 2, 1 3, 14, the processors 4, 5 are in operative connection with the associated driver elements 6, 7. Additional signal lines 1 5, 1 6 are provided between the drive motor 2 and the respective processor 4, 5. The driver elements 6, 7 are operatively connected to one another via a line 1 7, which acts as a continuation of the same as line 1 7 'on switching elements of the brake 3, which are not shown. The relays 8, 9 are connected to the drive motor 2 via switches 1 8, 1 9 and a single line 20. If there had previously been malfunctions in the area of the passenger conveyor system, the brake 3 would have applied suddenly, as a result of which the motor 2 would also have been stopped. The full braking would, however, under certain circumstances lead to people who are on the passenger conveyor system possibly falling down, since a sudden deceleration of the passenger conveyor system begins.
Hier setzt nun die Erfindung an, indem ein geregeltes Abbremsverhalten konzipiert wird, das dennoch die Sicherheitsstandards erfüllt.This is where the invention comes in by designing a controlled braking behavior that nevertheless meets the safety standards.
Die Regelung basiert auf der an sich bekannten Fuzzy-Logik, wobei im Bereich der Prozessoren Minimal- und Maximalwerte abgespeichert sind, so daß mindestens ein entsprechend den Sicherheitsstandards gegebener Mittelwert generiert werden kann, an welchem sich das Regelschema für die Bremse 3 orientiert. Wie bereits angesprochen, überwachen sich die Prozessoren 4,5 gegenseitig, so daß selbige stets den gleichen Datenstand haben. Solange die Personenförderanlage störungsfrei arbeitet, bleibt das nicht weiter dargestellte Steuerelement der Bremse 3 unter Spannung d.h. die Bremse 3 ist entlastet, so daß der Antreibsmotor 2 ungebremst arbeiten kann. Im Falle einer Betriebsstörung, d.h. sofern beide Prozessoren 4,5 diese Betriebsstörung festgestellt haben und der Datenabgleich identisch ist, werden entsprechende Signale auf die Treiberelemente 6,7 geleitet, die die Bremse 3 nun schlagartig zum Einfall bringen. Gleichzeitig wird über die Relais 8,9 sowie die Leitung 20 der Antriebsmotor 2 stillgesetzt, damit die einwirkende Bremsenergie nicht gegen den laufenden Motor arbeiten muß. Stellen die Prozessoren 4,5 nun Verzögerungswerte im Bereich des Antriebsmotors 2 fest, setzt daß erfindungsgemäße Regelschema ein, nämlich, daß die Bremse 3 über die zugehörigen Schaltelemente definiert wieder entlastet wird und innerhalb eines vorgegebenen, dem Sicherheitsstandard entsprechenden Bremsweges sowie Zeitintervalles die Stillsetzung der Personenförderanlage herbeigeführt wird. Die sich auf der Personenförderanlage befindenden Personen verspüren somit einen kurzzeitigen Verzögerungsimpuls, der jedoch nicht durchgängig ist, vielmehr wieder aufgehoben wird, so daß es infolge der erfindungsgemäßen Regelung nicht mehr zu Personenschäden kommen kann. Sollte einer der Prozessoren 4,5 ausfallen, d.h. die beiden Prozessoren 4,5 nicht kompatible Datensätze austauschen, wird über den zugehörigen Treiber 6 oder 7 und die Leitung 1 7 bzw. 1 7' die Bremse 3 schlagartig zum Einfallen gebracht, d.h. eine - wie im Stand der Technik bekannte - Vollbremsung herbeigeführt.The control is based on the fuzzy logic known per se, with minimum and maximum values being stored in the area of the processors, so that at least one mean value given in accordance with the safety standards can be generated, on which the control scheme for the brake 3 is based. As already mentioned, the processors 4, 5 monitor each other so that they always have the same data status. As long as the passenger conveyor system is working properly, the control element of the brake 3 (not shown) remains energized, ie the brake 3 is relieved, so that the drive motor 2 can work without braking. In the event of a malfunction, ie if both processors 4, 5 have determined this malfunction and the data comparison is identical, the corresponding ones Signals passed to the driver elements 6, 7, which suddenly bring the brake 3 into engagement. At the same time, the drive motor 2 is stopped via the relays 8, 9 and the line 20, so that the braking energy acting does not have to work against the running motor. If the processors 4, 5 now determine deceleration values in the area of the drive motor 2, the control scheme according to the invention applies, namely that the brake 3 is relieved in a defined manner via the associated switching elements and the stopping of the passenger conveyor system within a predetermined braking distance and time interval corresponding to the safety standard is brought about. The people on the passenger conveyor system thus feel a brief delay pulse, which is not continuous, but is rather canceled again, so that personal injury can no longer occur as a result of the regulation according to the invention. If one of the processors 4, 5 should fail, ie the two processors 4, 5 exchange incompatible data sets, the brake 3 is suddenly applied via the associated driver 6 or 7 and the line 1 7 or 1 7 ', ie a - as known in the prior art - brought about full braking.
Insofern ist sichergestellt, daß neben der komfortablen Regelung der Bremse 3 der Personenförderanlage nun auch bei Ausfall der Regeleinheit 1 (Prozessor 4 oder 5) der bisherige Sicherheitsstandard, nämlich die Vollbremsung gewährleistet werden kann. In this respect, it is ensured that, in addition to the convenient control of the brake 3 of the passenger conveyor system, the previous safety standard, namely full braking, can now be guaranteed even if the control unit 1 (processor 4 or 5) fails.

Claims

Patentansprüche claims
1 . Verfahren zur Regelung der jeweiligen Bremse (3) einer Personenförderanlage, wie einer Rolltreppe oder eines Rollsteiges, indem die Steuersignale des Antriebsmotors (2) und der Bremse (3) mittels mehrerer Prozessoren (4,5) überwacht werden, bei auftretenden Funktionsstörungen im Bereich der Personenförderanlage die Bremse (3) schlagartig zum Einfall gebracht wird, bei Erkennung von Verzögerungswerten die Bremse (3) definiert entlastet und sodann über die Prozessoren (4,5) innerhalb eines vorgebbaren Zeitintervalles die Personenförderanlage stillgesetzt wird.1 . Method for controlling the respective brake (3) of a passenger conveyor system, such as an escalator or a moving walk, by monitoring the control signals of the drive motor (2) and the brake (3) by means of several processors (4, 5) in the event of malfunctions in the area Passenger conveyor system, the brake (3) is suddenly applied, the brake (3) is relieved in a defined manner when delay values are detected, and the passenger conveyor system is then shut down via the processors (4, 5) within a predefinable time interval.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß sich die Prozessoren (4,5) gegenseitig überwachen.2. The method according to claim 1, characterized in that the processors (4,5) monitor each other.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jeder Prozessor (4,5) mindestens ein ein 24 V Signal generierendes Treiberelement (6,7) ansteuert, das mit den Schalteiementen der Bremse (3) zusammenwirkt.3. The method according to claim 1 or 2, characterized in that each processor (4,5) controls at least one 24 V signal generating driver element (6,7) which interacts with the switching elements of the brake (3).
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sämtliche Prozessoren (4,5) über zugeordneten Relais (8,9) auf den Antriebsmotor (2) einwirken und diesen bei Einfallen der Bremse (3) abschalten.4. The method according to any one of claims 1 to 3, characterized in that all processors (4,5) act on the drive motor (2) via assigned relays (8,9) and switch them off when the brake (3) engages.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Regelung auf Basis der Fuzzy-Logik vorgenommen wird.5. The method according to any one of claims 1 to 4, characterized in that the control is carried out on the basis of the fuzzy logic.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß auch bei Ausfall eines Prozessors (4 oder 5) über den bzw. die Treiberelement (6,7) ein schlagartiges Einfallen der Bremse (3) herbeigeführt wird.6. The method according to any one of claims 1 to 5, characterized in that even if a processor (4 or 5) fails via the or Driver element (6,7) a sudden application of the brake (3) is brought about.
7. Einrichtung zur Regelung der jeweiligen Bremse (3) einer Personenförderanlage mit mindestens zwei sich gegenseitig überwachenden Prozessoren (4,5), die über Treiberelemente (6,7) mit Schaltelementen der Bremse (3) verbunden sind.7. Device for controlling the respective brake (3) of a passenger conveyor system with at least two mutually monitoring processors (4,5), which are connected to switching elements of the brake (3) via driver elements (6,7).
8. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Prozessoren (4,5) mit zugehörigen Relais (8,9) zusammenwirken, die mit dem Antriebsmotor (2) der Personenförderanlage verbunden sind.8. Device according to claim 7, characterized in that the processors (4,5) cooperate with associated relays (8,9) which are connected to the drive motor (2) of the passenger conveyor system.
9. Einrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß jedes Treiberelement (6,7) ein 24 V Signal generiert, welches für das Schaltelement der jeweiligen Bremse (3) als Ansteuerspannung dient. 9. Device according to claim 7 or 8, characterized in that each driver element (6,7) generates a 24 V signal, which serves as a control voltage for the switching element of the respective brake (3).
EP01925409.3A 2000-04-14 2001-03-09 Method and device for adjusting the brake(s) of a device for transporting people Expired - Lifetime EP1274644B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10018887A DE10018887B4 (en) 2000-04-14 2000-04-14 Method and device for controlling the brake (s) of a passenger conveyor system
DE10018887 2000-04-14
PCT/EP2001/002662 WO2001079106A1 (en) 2000-04-14 2001-03-09 Method and device for adjusting the brake(s) of a device for transporting people

Publications (3)

Publication Number Publication Date
EP1274644A1 true EP1274644A1 (en) 2003-01-15
EP1274644B1 EP1274644B1 (en) 2005-01-12
EP1274644B2 EP1274644B2 (en) 2013-06-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01925409.3A Expired - Lifetime EP1274644B2 (en) 2000-04-14 2001-03-09 Method and device for adjusting the brake(s) of a device for transporting people

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US (1) US6766893B2 (en)
EP (1) EP1274644B2 (en)
CN (1) CN1220619C (en)
AT (1) ATE286848T1 (en)
AU (1) AU2001252176A1 (en)
DE (2) DE10018887B4 (en)
ES (1) ES2231476T5 (en)
HK (1) HK1054366B (en)
WO (1) WO2001079106A1 (en)

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Also Published As

Publication number Publication date
ATE286848T1 (en) 2005-01-15
CN1436149A (en) 2003-08-13
ES2231476T5 (en) 2013-10-31
US6766893B2 (en) 2004-07-27
US20030102199A1 (en) 2003-06-05
DE10018887A1 (en) 2001-10-25
EP1274644B1 (en) 2005-01-12
HK1054366A1 (en) 2003-11-28
CN1220619C (en) 2005-09-28
DE50105066D1 (en) 2005-02-17
EP1274644B2 (en) 2013-06-12
WO2001079106A1 (en) 2001-10-25
AU2001252176A1 (en) 2001-10-30
HK1054366B (en) 2005-12-09
DE10018887B4 (en) 2005-02-10
ES2231476T3 (en) 2005-05-16

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