WO2004101343A1 - Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung - Google Patents
Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung Download PDFInfo
- Publication number
- WO2004101343A1 WO2004101343A1 PCT/AT2004/000173 AT2004000173W WO2004101343A1 WO 2004101343 A1 WO2004101343 A1 WO 2004101343A1 AT 2004000173 W AT2004000173 W AT 2004000173W WO 2004101343 A1 WO2004101343 A1 WO 2004101343A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bsi
- acceleration
- wheel
- acceleration signal
- falling speed
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title description 6
- 230000001133 acceleration Effects 0.000 claims abstract description 88
- 230000010354 integration Effects 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000011156 evaluation Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 10
- 230000000717 retained effect Effects 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 claims 1
- 206010012411 Derailment Diseases 0.000 description 16
- 230000009471 action Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
- B61F9/005—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels by use of non-mechanical means, e.g. acoustic or electromagnetic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
Definitions
- the invention relates to a method for recognizing a derailment state of a wheel set of a rail vehicle, the acceleration of the wheel set being measured normal to a rail plane using an acceleration sensor.
- the invention further relates to a device for detecting a derailment state of a wheel of a rail vehicle, which has at least one acceleration sensor for detecting the acceleration of the wheel normal to a rail plane, the acceleration sensor being set up with an evaluation unit for evaluating an acceleration signal generated by the acceleration sensor
- a wheel or wheel set of a rail vehicle can, for example, be subjected to quasi-static accelerations caused by a terrain profile, but also accelerations caused by derailments. Of interest for a derailment detection, however, are only the accelerations that are caused by movements of the wheel set normal to the rail plane. In the following, accelerations acting on the wheel sets normal to the rail plane are referred to as gravitational accelerations. In this sense, the vertical speeds resulting from these accelerations are also referred to as falling speeds in this document.
- an acceleration of a component of the track-bound vehicle that is directly or indirectly in contact with the lane is determined vertically and / or transversely to a direction of travel.
- the acceleration signal is integrated twice over time and this twice integrated acceleration signal is compared with an upper and / or lower limit value, with a derailment being present when the limit value is exceeded or undershot.
- the main disadvantage of this known embodiment is that the double integration gives a very poor signal-to-noise ratio.
- Simple integration can reduce the signal-to-noise ratio by 20 dB per decade of the signal to be integrated.
- a double integration reduces the signal-to-noise ratio by 40 dB per decade.
- a double integration a low-frequency interference signal is amplified by a factor of 10 (20 dB) more than the actual useful signal - the acceleration of gravity.
- the double integration places high demands on the evaluation electronics, which can lead to high manufacturing costs. Furthermore, with the known method or system there may be delays in the detection of derailed conditions due to the required, complex evaluation electronics.
- a drop speed of the wheel in the direction of the rail plane is determined from an acceleration signal generated by the acceleration sensor by simple integration over a time window which can be predetermined, and a check is made on the basis of the determined drop speed whether a derailed Condition is present.
- the value of the falling speed is compared with a limiting falling speed, wherein a derailed state is recognized when the limiting falling speed is exceeded.
- a derailed state is inferred from the course of the fall speed over time.
- the acceleration signal is generated in the area of an axle bearing.
- High-pass filtering is advantageously used to eliminate the interference components.
- the group delay of the individual frequency components of the acceleration signal to be integrated is kept constant during the filtering.
- the integration of the acceleration signal is advantageously carried out in successive time windows, the end point of a time window forming the start point of a subsequent time window.
- the acceleration signal can also be integrated in successive time windows, with successive time windows overlapping one another in sections.
- a device of the type mentioned at the outset is particularly suitable for carrying out the method according to the invention, in which the evaluation unit is set up to determine a fall speed of the wheel in the direction of the rail plane from the acceleration signal by simple integration over a time window of predeterminable size and to use the determined fall speed to check whether there is a derailed condition.
- the evaluation unit is preferably set up to compare the determined falling speed with a limiting falling speed, whereby a derailed state is recognized when the limiting falling speed is exceeded.
- the evaluation unit can be set up to recognize a derailed state on the basis of the time course of the falling speed.
- the acceleration sensor is arranged in the region of an axle bearing of a wheel of the rail vehicle.
- a filter for EUminating low-frequency interference components contained in the acceleration signal can be provided before the integration, the filter advantageously being a high-pass filter.
- the filter leaves phase relationships of frequency components of the acceleration signal essentially unaffected.
- the evaluation unit is set up to carry out the integration of the acceleration signal in successive time windows, the end point of a time window forming the starting point of a subsequent time window.
- the evaluation unit can also be set up to carry out the integration of the acceleration signal in successive time windows, wherein successive time windows overlap one another in sections.
- An acceleration sensor is advantageously arranged in the region of each wheel of the rail vehicle.
- FIG. 1 shows a rail vehicle with a device for carrying out the method according to the invention
- Fig. 2 is a block diagram of a device according to the invention and 3 shows a time course of a falling speed of the rail vehicle in a time window in the event of a derailment.
- an acceleration signal is generated to carry out the method according to the invention for detecting a derailed state of a rail vehicle in the region of a bogie DRE of the rail vehicle.
- a device according to the invention has an acceleration sensor BSE, which can be arranged on an axle bearing AXL of a wheel RAD or wheel set of the rail vehicle.
- An acceleration sensor BSE is advantageously arranged in the area of each wheel RAD, for example on each axle bearing AXL.
- An essential element of the present invention is the knowledge that particularly reliable and representative measurement results can be achieved if the direction of action of the acceleration sensors BSE is essentially normal to the direction of travel, ie. H. runs normal to a rail plane ⁇ .
- the direction of travel of the rail vehicle is shown with an arrow FAR, the direction of action of the acceleration sensors BSE running normally on the drawing plane.
- the direction of action of an acceleration sensor BSE is understood in this document to mean the direction in which the sensor can preferably absorb acceleration forces and deliver signals.
- the acceleration sensors BSE can be designed, for example, as piezoelectric sensors, in which a piezoelectric crystal is arranged in a known manner between two capacitor plates running parallel to one another. If this type of sensor is used, the fact that the two capacitor plates run essentially normal to the direction of travel of the rail vehicle allows the direction of action of the acceleration sensors to match the direction of travel. Of course, other known acceleration sensors based on other mechanisms can also be used. Such sensors are known in large numbers to the person skilled in the art and are therefore not to be explained further here.
- the acceleration signal BSI generated by the acceleration sensor BSE is transmitted to an evaluation unit ASW according to FIG. 2, wherein the acceleration signal BSI can be transmitted from the acceleration sensors BSE to the evaluation unit ASW via electrical lines, glass fiber cables or wirelessly, for example via radio or blue tooth.
- the evaluation unit can be a correspondingly programmed microprocessor or signal processor, but in a preferred embodiment the Invention preferred for reasons of greater security of a purely hardware-technical implementation of the evaluation unit ASW.
- the falling speed FAG of the wheel RAD or wheel set in the direction of the rail plane ⁇ is determined from the acceleration signal in the evaluation unit ASW by means of simple integration INT over a time window which can be predetermined.
- the acceleration signal BSI can be integrated in successive time windows or time intervals, the end point of a time window forming the start point of a subsequent time window. Furthermore, it is also possible for successive time windows to partially overlap one another. In principle, there can also be a time interval between two successive time windows.
- the acceleration signal BSI can be integrated digitally or analogously. Large numbers of circuits and methods for the numerical or analog integration of a signal over a predefinable time range are known to the person skilled in the art and are therefore not to be explained in more detail here.
- derating of the acceleration signal can be concluded on the basis of the value of the particular integral, the upper and lower limits of which are determined by the time window in question.
- derailment can also be concluded from the course of the falling speed as a function of time in the time interval under consideration.
- a change in the time course of the falling speed FAG within the integration interval can correspond to a predeterminable value of a derailment.
- the time profile of the falling speed FAG shown in FIG. 3 is, as already mentioned above, obtained by integrating the acceleration signal BSI once, the direction of action of the associated acceleration sensor BSE, viewed from the rail plane ⁇ , being directed “upwards” so that a falling movement of the rail vehicle in the direction of the rail plane occurs as “negative” speed in the course.
- the direction of action of the acceleration sensor BSE could also point in the direction of the rail plane ⁇ , which would then result in a course of the falling speed FAG mirrored at the zero line NUL.
- the end of the falling movement of the rail vehicle is characterized by the minimum MIN of the course over time.
- the minimum MIN corresponds in time to the impact of the rail vehicle on the road. This is followed by a positive value of the falling speed due to the acceleration acting upwards as a result of the impact on the road.
- the evaluation unit ASW can have a filter FIL for eliminating low-frequency interference before integration, which is caused, for example, by drift phenomena and low-frequency electromagnetic interference in order to improve the signal-to-noise ratio.
- a filter with a fast transition from its blocking to its passband is preferably used. Filters with a fast transition from a blocked to a passed frequency range can change the phase positions between the individual frequency components of the signal to be integrated. This can result in the fact that the course of the falling movement can no longer be properly reconstructed through integration.
- a filter is preferably used which does not change the phase relationships of the individual frequency components contained in the signal to one another.
- This condition is fulfilled, for example, for Bessel filters or for FIR filters.
- the signal is preferably filtered using a high-pass filter belonging to the Bessel filter family.
- Bessel filters are preferred to FIR filters, since comparable FIR filters have a longer response time.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Geophysics And Detection Of Objects (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Gyroscopes (AREA)
- Air Bags (AREA)
- Window Of Vehicle (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04733271A EP1622802B8 (de) | 2003-05-15 | 2004-05-17 | Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung |
KR1020057021147A KR101126575B1 (ko) | 2003-05-15 | 2004-05-17 | 낙하율 결정에 의한 탈선 검출 |
DE502004001814T DE502004001814D1 (de) | 2003-05-15 | 2004-05-17 | Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung |
CA002524448A CA2524448C (en) | 2003-05-15 | 2004-05-17 | Detection of derailment by determining the rate of fall |
ES04733271T ES2274454T5 (es) | 2003-05-15 | 2004-05-17 | Detección del descarrilamiento a través de la determinación de la velocidad de caída |
AU2004238391A AU2004238391B2 (en) | 2003-05-15 | 2004-05-17 | Detection of derailment by determining the rate of fall |
NO20054846A NO334274B1 (no) | 2003-05-15 | 2005-10-20 | Detektering av avsporing ved bestemmelse av fallhastighet |
US11/273,408 US7937192B2 (en) | 2003-05-15 | 2005-11-14 | Detection of derailment by determining the rate of fall |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA746/2003 | 2003-05-15 | ||
AT0074603A AT413974B (de) | 2003-05-15 | 2003-05-15 | Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004101343A1 true WO2004101343A1 (de) | 2004-11-25 |
Family
ID=33437384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2004/000173 WO2004101343A1 (de) | 2003-05-15 | 2004-05-17 | Entgleisungsdetektion durch fallgeschwindigkeitsbestimmung |
Country Status (13)
Country | Link |
---|---|
US (1) | US7937192B2 (de) |
EP (1) | EP1622802B8 (de) |
KR (1) | KR101126575B1 (de) |
CN (1) | CN100453374C (de) |
AT (2) | AT413974B (de) |
AU (1) | AU2004238391B2 (de) |
CA (1) | CA2524448C (de) |
DE (1) | DE502004001814D1 (de) |
ES (1) | ES2274454T5 (de) |
NO (1) | NO334274B1 (de) |
PT (1) | PT1622802E (de) |
RU (1) | RU2301167C2 (de) |
WO (1) | WO2004101343A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020089035A1 (de) | 2018-10-31 | 2020-05-07 | Siemens Mobility Austria Gmbh | Verfahren und vorrichtung zur detektion eines entgleisungszustands eines schienenfahrzeugs |
EP3778344A2 (de) | 2019-08-05 | 2021-02-17 | PJ Monitoring GmbH | Vorrichtung zur erkennung einer informativ anzeigbaren radsatzentgleisung |
EP4331942A1 (de) | 2022-08-23 | 2024-03-06 | Siemens Mobility Austria GmbH | Verfahren und vorrichtung zur detektion eines entgleisungszustands eines schienenfahrzeugs |
WO2024115448A1 (de) | 2022-11-30 | 2024-06-06 | Siemens Mobility Austria Gmbh | Vorrichtung und verfahren zur entgleisungsdetektion für schienenfahrzeuge und schienenfahrzeug |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007044575A1 (de) * | 2007-09-19 | 2009-04-16 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Verfahren zur Anpassung wenigstens eines Parameters in einem gesteuerten oder geregelten System eines Fahrzeugs |
KR100946232B1 (ko) * | 2008-06-13 | 2010-03-09 | 한국철도기술연구원 | 수직변위와 정상횡가속도를 이용한 탈선계수 측정장치 및그 방법 |
KR101540501B1 (ko) * | 2009-03-12 | 2015-07-29 | 지멘스 에스에이에스 | 레일의 존재를 모니터링하기 위한 방법 및 장치 |
KR101572713B1 (ko) | 2009-07-28 | 2015-11-27 | 지멘스 에스에이에스 | 안내식 차량의 탈선을 감지하는 방법 및 장치 |
BG1413U1 (en) * | 2010-06-14 | 2011-02-28 | "ФАЕ-София" ООД | A device for registration derailed wheel sets |
CN102914364B (zh) * | 2012-10-19 | 2014-02-12 | 西南交通大学 | 一种因轮轨冲击作用导致轮轨瞬间失去接触的动态识别方法 |
US9168937B2 (en) | 2012-10-24 | 2015-10-27 | Progress Rail Services Corporation | Multi-function dragger |
US9090270B2 (en) | 2012-10-24 | 2015-07-28 | Progress Rail Services Corporation | Speed sensitive dragging equipment detector |
US8818585B2 (en) | 2012-10-24 | 2014-08-26 | Progress Rail Services Corp | Flat wheel detector with multiple sensors |
US9090271B2 (en) | 2012-10-24 | 2015-07-28 | Progress Rail Services Corporation | System and method for characterizing dragging equipment |
US9139209B2 (en) * | 2013-03-14 | 2015-09-22 | Wabtec Holding Corp. | Derailment detector |
EP3079965B1 (de) | 2013-12-10 | 2020-02-05 | Siemens Mobility Austria GmbH | Verfahren und einrichtung zur erkennung einer entgleisung oder eines auftreffens eines hindernisses auf ein schienenfahrzeug |
FR3014400B1 (fr) * | 2013-12-11 | 2016-02-05 | Alstom Transport Sa | Vehicule terrestre guide comprenant un dispositif de gestion d'un deraillement du vehicule , et procede de gestion du deraillement associe |
JP6435203B2 (ja) * | 2015-01-22 | 2018-12-05 | 株式会社総合車両製作所 | 脱線検知装置及び脱線検知方法 |
JP6454251B2 (ja) * | 2015-10-06 | 2019-01-16 | 公益財団法人鉄道総合技術研究所 | 脱線状態検知装置及び脱線状態検知方法 |
DE102015119392A1 (de) * | 2015-11-11 | 2017-05-11 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Verfahren und Vorrichtung zur vergleichsgesteuerten Entgleisungserfassung |
US10906571B2 (en) * | 2016-01-22 | 2021-02-02 | International Electronic Machines Corp. | Railway vehicle operations monitoring |
CN112606870A (zh) * | 2020-12-16 | 2021-04-06 | 云南昆钢电子信息科技有限公司 | 一种有轨运输矿厢掉道检测装置 |
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JPH0239790A (ja) * | 1988-07-29 | 1990-02-08 | Mitsubishi Electric Corp | テレビ電話機 |
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EP1104734A1 (de) * | 1998-08-10 | 2001-06-06 | Tokyu Car Corporation | Verfahren und vorrichtung zum feststellen des entgleisens von eisenbahnwagen |
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OA04676A (fr) * | 1973-11-28 | 1980-07-31 | Mines De Fer De Mauritanie Sa | Dispositif destiné à provoquer, en cas de déraillement d'un wagon d'un convoi ferroviaire, le freinage d'urgence dudit convoi. |
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2003
- 2003-05-15 AT AT0074603A patent/AT413974B/de not_active IP Right Cessation
-
2004
- 2004-05-17 EP EP04733271A patent/EP1622802B8/de not_active Expired - Lifetime
- 2004-05-17 RU RU2005139126/11A patent/RU2301167C2/ru active
- 2004-05-17 AT AT04733271T patent/ATE342832T1/de active
- 2004-05-17 AU AU2004238391A patent/AU2004238391B2/en not_active Expired
- 2004-05-17 WO PCT/AT2004/000173 patent/WO2004101343A1/de active IP Right Grant
- 2004-05-17 PT PT04733271T patent/PT1622802E/pt unknown
- 2004-05-17 ES ES04733271T patent/ES2274454T5/es not_active Expired - Lifetime
- 2004-05-17 CA CA002524448A patent/CA2524448C/en not_active Expired - Fee Related
- 2004-05-17 CN CNB2004800129430A patent/CN100453374C/zh not_active Expired - Lifetime
- 2004-05-17 KR KR1020057021147A patent/KR101126575B1/ko active IP Right Grant
- 2004-05-17 DE DE502004001814T patent/DE502004001814D1/de not_active Expired - Lifetime
-
2005
- 2005-10-20 NO NO20054846A patent/NO334274B1/no not_active IP Right Cessation
- 2005-11-14 US US11/273,408 patent/US7937192B2/en active Active
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020089035A1 (de) | 2018-10-31 | 2020-05-07 | Siemens Mobility Austria Gmbh | Verfahren und vorrichtung zur detektion eines entgleisungszustands eines schienenfahrzeugs |
EP3778344A2 (de) | 2019-08-05 | 2021-02-17 | PJ Monitoring GmbH | Vorrichtung zur erkennung einer informativ anzeigbaren radsatzentgleisung |
EP3778344A3 (de) * | 2019-08-05 | 2021-08-11 | PJ Monitoring GmbH | Vorrichtung zur erkennung einer informativ anzeigbaren radsatzentgleisung |
EP4331942A1 (de) | 2022-08-23 | 2024-03-06 | Siemens Mobility Austria GmbH | Verfahren und vorrichtung zur detektion eines entgleisungszustands eines schienenfahrzeugs |
WO2024115448A1 (de) | 2022-11-30 | 2024-06-06 | Siemens Mobility Austria Gmbh | Vorrichtung und verfahren zur entgleisungsdetektion für schienenfahrzeuge und schienenfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
AT413974B (de) | 2006-07-15 |
AU2004238391A1 (en) | 2004-11-25 |
RU2005139126A (ru) | 2006-05-10 |
ES2274454T5 (es) | 2012-07-12 |
NO20054846D0 (no) | 2005-10-20 |
AU2004238391B2 (en) | 2010-05-13 |
ATE342832T1 (de) | 2006-11-15 |
KR20060006834A (ko) | 2006-01-19 |
EP1622802B1 (de) | 2006-10-18 |
NO334274B1 (no) | 2014-01-27 |
KR101126575B1 (ko) | 2012-03-20 |
ES2274454T3 (es) | 2007-05-16 |
PT1622802E (pt) | 2007-01-31 |
US7937192B2 (en) | 2011-05-03 |
CA2524448A1 (en) | 2004-11-25 |
CA2524448C (en) | 2010-01-19 |
DE502004001814D1 (de) | 2006-11-30 |
CN1787941A (zh) | 2006-06-14 |
RU2301167C2 (ru) | 2007-06-20 |
US20060122745A1 (en) | 2006-06-08 |
ATA7462003A (de) | 2005-11-15 |
EP1622802B2 (de) | 2012-05-30 |
EP1622802A1 (de) | 2006-02-08 |
EP1622802B8 (de) | 2012-08-15 |
NO20054846L (no) | 2006-01-09 |
CN100453374C (zh) | 2009-01-21 |
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