EP0722903B1 - Verfahren und Einrichtung zur Erzeugung von Schachtinformation eines Aufzugsschachtes - Google Patents
Verfahren und Einrichtung zur Erzeugung von Schachtinformation eines Aufzugsschachtes Download PDFInfo
- Publication number
- EP0722903B1 EP0722903B1 EP96100090A EP96100090A EP0722903B1 EP 0722903 B1 EP0722903 B1 EP 0722903B1 EP 96100090 A EP96100090 A EP 96100090A EP 96100090 A EP96100090 A EP 96100090A EP 0722903 B1 EP0722903 B1 EP 0722903B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pattern
- code
- shaft
- lift
- image
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011156 evaluation Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 4
- 238000003909 pattern recognition Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
Definitions
- the invention relates to a method and a device for the generation of an elevator control Shaft information of an elevator shaft with an in Elevator shaft movable elevator car and one in Readable code arranged in the elevator shaft.
- a disadvantage of the known device is that by the length of the elevator shaft and thus the coded tape inaccurate car positions surrender.
- Another disadvantage is the great effort for fastening the strap in the elevator shaft. So that none Misinformation can arise that tape must be precise over the entire shaft height must be supported. You can also inaccuracies in the guidance of the elevator car negatively on the reliability of the shaft information impact.
- Another disadvantage is that encoded tape protrudes from the shaft wall and into the Chimney protrudes. The shaft cross section must be dimensioned larger accordingly.
- Another The disadvantage with regard to proof of security is that it cannot be distinguished whether a light transmitter or the receiver is defective or whether the light beam comes through the encoded tape is interrupted. The fault can therefore cannot be distinguished from a normal function.
- the invention seeks to remedy this.
- the invention as characterized in the claims, solves the Task to the disadvantages of the known device avoid and create a facility where the Reliability of the shaft information generated improved becomes.
- the advantage achieved by the invention is in essential to see that with the improved Reliability of the shaft information the security of the Elevator can be guaranteed. By damaged or defective parts triggered wrong shaft information recognized and leads with the inventive device not wrong results. For example, the Bridging door contacts when retracting the Elevator car not tripped to a stop if the shaft information required for this is incorrect. On Another advantage is that with the same Setup and shaft information multiple functions, for example position monitoring, Speed monitoring, door circuit bridging and Self-diagnosis are feasible. This is the requirement after intrinsically safe.
- the invention is based on a Embodiment for bridging door contacts explained in more detail based on shaft information.
- the elevator car is driven into the stop Floor and cabin doors to save time opened early.
- Those in the security circle of Elevator control door contacts must therefore by a dependent on the shaft information Safety device can be bridged.
- the areas in which the bridging of the door contacts when entering and adjusting the elevator car is permitted and must be monitored by the inventive safety device can be seen from the diagram in FIG. 1.
- the position + P of the elevator car above a stop and the position -P of the elevator car below the stop is shown on the vertical axis of the diagram. In position P 0 the threshold of the elevator car is flush with the stop.
- the speed is marked v on the horizontal axis.
- the position and the speed at which the door contacts can be bridged when retracting is designated + P E and -P E or v E.
- the position and the speed at which readjustment with bridged door contacts is permitted is denoted by + P N and -P N or v N.
- FIG. 2 shows an elevator shaft 1 in the area of a stop with a reflector 2 on which a code 3, for example a 2-zone code, a one- or two-dimensional bar code or a point code, is arranged.
- a code 3 for example a 2-zone code, a one- or two-dimensional bar code or a point code
- a 2-zone code 3 is used.
- the code 3 is arranged in a first track 4 and a second track 5.
- both tracks 4, 5 are identical in pattern, but they can also be different.
- the level of the stop is shown with the broken line H 0 , to which the code 3 is symmetrical.
- a drive-in area B E in which the door contacts can be bridged, is half above and below the level line H 0 .
- a readjustment area B N in which, with bridged door contacts, readjustment of an elevator car 6 which lowers due to rope expansion when the doors are open, is half above and below the level line H 0 .
- the code 3 of the first track 4 and the second track 5 is recorded and evaluated by a 2-channel evaluation device 7 arranged on the elevator car 6, both channels being identical.
- a first transmitter 8 of the evaluation device 7 illuminates the first track 4 of the reflector 2
- a second transmitter 9 of the evaluation device 7 illuminates the second track 5 of the reflector 2.
- the illuminated surface of the first track 4 is on a first CCD sensor 10 of the evaluation unit 7 mapped
- the illuminated surface of the second track 5 is mapped on a second CCD sensor 11 of the evaluation unit 7.
- the optics 12.1 of the transmitter 8 shown in FIG. 3 and the optics 12.2 of the CCD sensor 10 are matched to one another in such a way that the illuminated surface of the reflector 2 is sharply imaged on the CCD sensor in a certain distance range, for example 10 to 30 mm .
- FIG. 3 shows a block diagram of the evaluation device 7 shown in FIG. 2 with a first channel 13, a comparator 14 and a second channel 15.
- the second channel 15 has the same structure as the first channel 13 and is therefore not shown.
- the first channel 13 consists of the first transmitter 8 with the optics 12.1, the CCD sensor 10 with the optics 12.2, a pattern recognition logic MER, an interface INF, a computer CPU, which via a bus system BUS with a program and parameter memory ROM and is connected to a data memory RAM and to the pattern recognition logic MER and the interface INF and from a relay logic REL to which a relay 16 is connected. If the conditions for retracting or adjusting are met, the relay 16 bridges door contacts 17 of a safety circuit 18.
- the results of the two channels 13, 15 are compared in the comparator 14 and errors are output in the event of unauthorized deviations.
- the comparator 14 consists of a position comparator POC, a speed comparator SPC and an error collector FES.
- a first release signal ENE of the elevator control allows the doors to be opened when the elevator car is retracted and a second release signal ENN of the elevator control allows the elevator car 6 to be readjusted when the doors are open.
- the enable signals ENE, ENN can also be generated by the evaluation device 7 itself, since the necessary information is available. When entering the insertion zone B E, the first enable signal NE is generated. When entering the adjustment range B N , the second enable signal ENN is generated. When leaving these areas, the enable signals ENE, ENN are reset.
- a position signal output by the INF interface is with POS and one output by the interface INF Speed signal is labeled SPE.
- a first error signal FEP and for unauthorized Deviations in the speed comparator SPC will be a second error signal FEG to the error collector FES spent.
- the interface INF If the entry conditions are met, the interface INF generates an entry signal EBE and if the reset conditions are met, the Interface INF an adjustment signal EBN.
- the bridging the door contacts only take place if the first release signal ENE and the entry signal EBE or the second Enable signal ENN and the adjustment signal EBN at the same time are present at the relay logic REL.
- a disturbance in the Relay logic REL triggers a third error signal REF.
- At Pending errors in the FES error collector switches on fourth error signal REO the relay 16 via the relay logic REL off.
- Fig. 4 shows a section of such an image, in a certain pattern with bright areas HB, Dark areas DB, light mids HM and dark mids DM is included.
- Fig. 5 the image of the CCD sensor 10, 11 from the pattern recognition logic MER and from Computer CPU cyclically analyzed and the hardware one cyclic test.
- the Program sequence started with step S0.0.
- step S0.1 becomes a hardware and a software Initialization carried out.
- step S0.2 a hardware test of the RAM, ROM, Register etc. carried out.
- the endless loop comprising steps S1 to S13 executed.
- the infinite loop has one constant throughput time. Interrupts for time control are not allowed since the evaluation unit 7 is is a safety-relevant facility. If that captured image with the pattern of step S1 unique Bright areas HB and dark areas DB, the Lengths of the light areas HB and the dark areas DB as well one determined by the distance of the dark centers DM Pattern repetition distance MW determined. Also be the light mids HM and the dark mids DM Uniformity checked by the percentage of Image elements 19 determined with the same brightness values becomes. For further processing, the Pattern recognition logic MER determined data on the Transfer bus system BUS into the data memory RAM.
- step S2 the computer CPU then compares the determined pattern with a reference pattern stored in the program and parameter memory ROM. For safety reasons, the uniformity of the light centers HM and the dark centers DM is also assessed in step S3. A too low percentage of the picture elements 19 with the same brightness values does not meet the entry and readjustment conditions. In the event of negative results of test steps S1 to S3, the entry condition or the adjustment condition are kept as not fulfilled via the INF interface.
- step S4 the determined current pattern is compared with the last determined pattern and the displacement of the determined pattern is calculated therefrom. The current speed v of the elevator car 6 is calculated from the displacement and a sampling cycle time t A in step S5. In step S6 it is checked whether a pattern from the adjustment range B N has been detected.
- step S6 If there is a positive test result of step S6, the current car speed v is compared in step S7 with the permitted speed v n for adjusting the elevator car 6.
- a positive test result of step S7 triggers step S8, in which retraction and readjustment are communicated as permitted to the interface INF, which in step S9 outputs the entry signal EBE and the adjustment signal EBN to the relay logic REL.
- a negative test result of steps S6 and S7 initialize step S10, in which the current car speed v is compared with the permitted speed v e for entering the elevator car 6. If the test step S10 has a negative result, the entry condition is kept as not fulfilled via the INF interface.
- step S10 A positive test result in step S10 triggers step S11, in which entry INF is communicated as permitted, which in step S9 outputs the entry signal EBE to the relay logic REL. If there is an entry signal EBE or an adjustment signal EBN and a first release signal ENE or a second release signal ENN and no error signal REO, the relay 16 is switched on and the door contacts 17 are bridged.
- the position signal derived from it POS is not only used for comparison with the position signal of the second channel but can also be used for fine positioning the elevator car when entering the elevator control be used.
- step S12 Memory RAM, ROM, register etc. takes a long time. So that the existing from steps S1 to S13 Loop through in a short and constant time the hardware test in Test sections of equal duration divided.
- Fig. 6 shows an example with six test sections AS1 ... AS6.
- a The variable shown as pointer ZEI points to the current test section AS2. When running through the loop after processing the current test section the pointer ZEI placed on the next section, so that at next test run another test section Is tested. In the present example, the whole is Test performed once after six loop runs been.
- step S13 the data determined in the process via the INF interface to the position comparator POC and output to the speed comparator SPC.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Elevator Control (AREA)
Description
- Fig. 1
- ein Diagramm der Kabinenposition in Funktion der Kabinengeschwindigkeit,
- Fig. 2
- eine erfindungsgemässe Einrichtung zur Erzeugung von Schachtinformation,
- Fig. 3
- eine Einrichtung zur Auswertung der Schachtinformation,
- Fig. 4
- einen Ausschnitt eines erfassten Bildes eines Codes,
- Fig. 5
- ein Flussdiagramm eines Algorithmus zur Steuerung der Auswertung der Schachtinformation und zur zyklischen Selbstüberwachung und
- Fig. 6
- eine schematische Darstellung zur Aufteilung eines lange dauernden Hardwaretests.
Claims (8)
- Verfahren zur Erzeugung von einer Aufzugssteuerung dienenden Schachtinformation eines Aufzugsschachtes (1) mit einer im Aufzugsschacht (1) verfahrbaren Aufzugskabine (6) und einem im Aufzugsschacht (1) angeordneten lesbaren Code (3),
dadurch gekennzeichnet,dass der Code (3) bildweise gelesen wird,dass mindestens ein im Bild des gelesenen Codes (3) enthaltenes Muster erkannt wird,dass das erkannte Muster mit einem Referenzmuster verglichen wird unddass aus dem erkannten Muster eine Schachtinformation für die Aufzugssteuerung erzeugt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,dass im Muster mindestens ein Hellbereich (HB) mit einer hellen Mitte (HM) und mindestens ein Dunkelbereich (DB) mit einer dunkeln Mitte (DM) erkannt wird unddass aus der Beabstandung der dunkeln Mitten (DM) eine Musterwiederholungsdistanz (MW) ermittelt wird, aus der die Position der Aufzugskabine (6) ableitbar ist. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
dass die hellen Mitten (HM) und die dunkeln Mitten (DM) auf Einheitlichkeit geprüft werden, indem der Prozentsatz der Bildelemente (19) mit gleichen Helligkeitswerten ermittelt wird, wobei bei einem bestimmten Prozentsatz das Muster als ungültig erkannt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,dass eine Verschiebung des aktuellen Musters gegenüber dem letztmals ermittelten Muster berechnet wird unddass aus der Verschiebung und aus einer Abtastzykluszeit (tA) eine Geschwindigkeit (v) der Aufzugskabine (6) berechnet wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass aus mindestens einem Muster ein Einfahrbereich (BE) und ein Nachstellbereich (BN) erkannt wird, in denen die Überbrückung von Türkontakten (17) beim Einfahren der Aufzugskabine (6) in eine Haltestelle erlaubt ist. - Verfahren nach den Ansprüchen 4 und 5,
dadurch gekennzeichnet,dass die Geschwindigkeit (v) der Aufzugskabine (6) mit einer dem Bereich (BE, BN) entsprechenden Geschwindigkeit verglichen wird unddass daraus Einfahr- und Nachstellbedingungen erzeugt werden. - Einrichtung zur Durchführung des Verfahrens nach Anspruch 1 bestehend aus einem im Aufzugsschacht (1) angeordneten lesbaren Code (3), einem an einer im Aufzugsschacht (1) verfahrbaren Aufzugskabine (6) angeordneten Einrichtung zum Lesen des Codes (3) und einer Einrichtung zur Auswertung einer der Aufzugssteuerung dienenden im Code (3) enthaltenen Schachtinformation,
dadurch gekennzeichnet,dass mindestens ein Sensor (10, 12.2) zum bildweisen Lesen des Codes (3) vorgesehen ist,dass mindestens eine Einrichtung (MER) zum Erkennen mindestens eines im gelesenen Bild des Codes (3) enthaltenen Musters vorgesehen ist unddass mindestens eine Recheneinrichtung (CPU, ROM, RAM, BUS, INF) zur Auswertung der im Muster enthaltenen Schachtinformation vorgesehen ist. - Einrichtung nach Anspruch 7,
dadurch gekennzeichnet,
dass ein erster Kanal (13) mit dem Sensor (10, 12.2), der Recheneinrichtung (CPU, ROM, RAM, BUS, INF), einer Relaislogik (REL) zur Auswertung musterabhängiger Signale (EBE, EBN, ENE, ENN) mit einem Relais (16) zur Überbrückung von Türkontakten (17) vorgesehen ist, dass ein zweiter Kanal (15) mit dem Sensor (10, 12.2), der Recheneinrichtung (CPU, ROM, RAM, BUS, INF), einer Relaislogik (REL) zur Auswertung musterabhängiger Signale (EBE, EBN, ENE, ENN) mit einem Relais (16) zur Überbrückung von Türkontakten (17) vorgesehen ist und dass ein Vergleicher (14) mit einem Positionsvergleicher (POC) für den Vergleich von aus Mustern der Kanäle (13, 15) erzeugten Positionssignalen (POS) und mit einem Geschwindigkeitsvergleicher (SPC) für den Vergleich von aus Mustern der Kanäle (13, 15) erzeugten Geschwindigkeitssignalen (SPE) vorgesehen ist, wobei bei unerlaubten Signalabweichungen Fehlersignale (FEP, FEG) von einem Fehlersammler (FES) des Vergleichers (14) aufgenommen werden und ein Fehlersignal (REO) des Fehlersammlers (FES) die Relaislogik (REL) der Kanäle (13, 15) für die Überbrückung der Türkontakte (17) sperrt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH15395 | 1995-01-20 | ||
CH15395 | 1995-01-20 | ||
CH153/95 | 1995-01-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0722903A1 EP0722903A1 (de) | 1996-07-24 |
EP0722903B1 true EP0722903B1 (de) | 2000-05-31 |
Family
ID=4180462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96100090A Expired - Lifetime EP0722903B1 (de) | 1995-01-20 | 1996-01-05 | Verfahren und Einrichtung zur Erzeugung von Schachtinformation eines Aufzugsschachtes |
Country Status (15)
Country | Link |
---|---|
US (1) | US5821477A (de) |
EP (1) | EP0722903B1 (de) |
JP (1) | JP3888474B2 (de) |
CN (1) | CN1042020C (de) |
AT (1) | ATE193503T1 (de) |
AU (1) | AU700778B2 (de) |
BR (1) | BR9600159A (de) |
CA (1) | CA2165247C (de) |
DE (1) | DE59605329D1 (de) |
ES (1) | ES2148595T3 (de) |
FI (1) | FI112935B (de) |
HK (1) | HK1012326A1 (de) |
MY (1) | MY113334A (de) |
SG (1) | SG54106A1 (de) |
ZA (1) | ZA96443B (de) |
Cited By (1)
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WO2015055300A1 (de) | 2013-10-14 | 2015-04-23 | Cedes Ag | Codierungsvorrichtung sowie positionsbestimmungsvorrichtung und -verfahren |
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JP6602906B2 (ja) * | 2018-02-26 | 2019-11-06 | 東芝エレベータ株式会社 | エレベータ装置 |
CN108423507B (zh) * | 2018-03-09 | 2019-11-12 | 日立电梯(中国)有限公司 | 轿厢绝对位置的检测系统的自检装置及其自检方法 |
CN109484933B (zh) * | 2018-12-29 | 2020-07-17 | 日立电梯(中国)有限公司 | 一种电梯轿厢位置和速度检测系统及其自检方法 |
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JP7453883B2 (ja) * | 2020-08-28 | 2024-03-21 | 株式会社日立製作所 | 計測装置及び計測システム |
CN112723061B (zh) * | 2020-12-28 | 2021-11-05 | 浙江大学 | 融入ucmp的中速电梯开门再平层系统和方法 |
CN112723059B (zh) * | 2020-12-28 | 2021-11-05 | 浙江大学 | 基于双减速位移校正点的中速电梯近站平层系统和方法 |
CN112723060B (zh) * | 2020-12-28 | 2021-11-05 | 浙江大学 | 基于双减速位移校正点的中速电梯长站平层系统和方法 |
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JPH01294180A (ja) * | 1988-05-19 | 1989-11-28 | Mitsubishi Electric Corp | エレベータの位置検出装置 |
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IT1257416B (it) * | 1992-08-05 | 1996-01-15 | Metodo ed apparato per il controllo e la correzione automatica del comando di decelerazione-arresto della cabina di un ascensore o di un montacarichi al variare dei dati di funzionamento dell'impianto. | |
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- 1995-12-14 CA CA002165247A patent/CA2165247C/en not_active Expired - Lifetime
- 1995-12-15 MY MYPI95003883A patent/MY113334A/en unknown
- 1995-12-22 US US08/577,731 patent/US5821477A/en not_active Expired - Lifetime
-
1996
- 1996-01-05 ES ES96100090T patent/ES2148595T3/es not_active Expired - Lifetime
- 1996-01-05 AT AT96100090T patent/ATE193503T1/de not_active IP Right Cessation
- 1996-01-05 EP EP96100090A patent/EP0722903B1/de not_active Expired - Lifetime
- 1996-01-05 DE DE59605329T patent/DE59605329D1/de not_active Expired - Lifetime
- 1996-01-18 SG SG1996000293A patent/SG54106A1/en unknown
- 1996-01-18 FI FI960249A patent/FI112935B/fi not_active IP Right Cessation
- 1996-01-18 AU AU42059/96A patent/AU700778B2/en not_active Expired
- 1996-01-19 JP JP00789696A patent/JP3888474B2/ja not_active Expired - Fee Related
- 1996-01-19 ZA ZA96443A patent/ZA96443B/xx unknown
- 1996-01-19 BR BR9600159A patent/BR9600159A/pt not_active IP Right Cessation
- 1996-01-19 CN CN96100694A patent/CN1042020C/zh not_active Expired - Lifetime
-
1998
- 1998-12-16 HK HK98113566A patent/HK1012326A1/xx not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015055300A1 (de) | 2013-10-14 | 2015-04-23 | Cedes Ag | Codierungsvorrichtung sowie positionsbestimmungsvorrichtung und -verfahren |
WO2015055298A1 (de) | 2013-10-14 | 2015-04-23 | Cedes Ag | Codierungsvorrichtung sowie positionsbestimmungsvorrichtung und -verfahren |
US9359170B2 (en) | 2013-10-14 | 2016-06-07 | Cedes Ag | Coding device and position-determining device and position-determining method |
Also Published As
Publication number | Publication date |
---|---|
FI112935B (fi) | 2004-02-13 |
HK1012326A1 (en) | 1999-07-30 |
CA2165247A1 (en) | 1996-07-21 |
JP3888474B2 (ja) | 2007-03-07 |
ZA96443B (en) | 1996-08-08 |
FI960249A0 (fi) | 1996-01-18 |
MY113334A (en) | 2002-01-31 |
AU4205996A (en) | 1996-08-01 |
ATE193503T1 (de) | 2000-06-15 |
FI960249A (fi) | 1996-07-21 |
CN1042020C (zh) | 1999-02-10 |
ES2148595T3 (es) | 2000-10-16 |
US5821477A (en) | 1998-10-13 |
CA2165247C (en) | 2006-05-23 |
SG54106A1 (en) | 1998-11-16 |
AU700778B2 (en) | 1999-01-14 |
CN1137479A (zh) | 1996-12-11 |
EP0722903A1 (de) | 1996-07-24 |
BR9600159A (pt) | 1998-01-06 |
JPH08225269A (ja) | 1996-09-03 |
DE59605329D1 (de) | 2000-07-06 |
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