EP0712804B1 - Übergeschwindigkeitsdetektor für Aufzugsanlagen mit mehrfacher Lichtschranke - Google Patents
Übergeschwindigkeitsdetektor für Aufzugsanlagen mit mehrfacher Lichtschranke Download PDFInfo
- Publication number
- EP0712804B1 EP0712804B1 EP95117394A EP95117394A EP0712804B1 EP 0712804 B1 EP0712804 B1 EP 0712804B1 EP 95117394 A EP95117394 A EP 95117394A EP 95117394 A EP95117394 A EP 95117394A EP 0712804 B1 EP0712804 B1 EP 0712804B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light barrier
- speed detector
- detector according
- track
- excess speed
- 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
- 230000004888 barrier function Effects 0.000 title claims description 54
- 238000005259 measurement Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 6
- 239000000872 buffer Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 108010066114 cabin-2 Proteins 0.000 description 2
- 238000003708 edge detection Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000012464 large buffer Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
-
- 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 an overspeed detector with multiple light barriers and a flag train Generation of shaft information for an elevator system.
- Such a device is known from US Pat. No. 4,499,974 Speed monitoring and stop initiation, in particular for elevator cars.
- On one side of the Lift shaft is a flag train with this facility appropriate.
- There is a detector on the cabin e.g. in shape a fork light barrier. When the cabin through drives the shaft and the light beams from the light barrier interrupted, the time of the interruption is measured. If the interruption time is less than a specified value, so that's a measure of overspeed.
- the single ones Flags of the flag train are dimensioned in such a way that if it is at more than the maximum allowable speed be passed, the specified passing times fall below and the safety switching elements to be triggered.
- the Cabin speed based on a single measurement or Control device determined. It cannot be recognized whether the light barrier engages deep enough in the flags to ensure an interruption of the light rays. The Lack of the flag train or even individual flags can so that it is not immediately identified either. It can also with this facility can not be recognized whether the Working contacts of the safety switching elements work, without breaking the circuit to make sure that they are actually opened in the event of an error may or may not.
- the invention has for its object a device to determine the overspeed of the input to propose the type mentioned, the disadvantages of which are not and which ensures a high level of security.
- Elevator 1 shows a schematic representation of a Elevator system with a device according to the invention for Detection of overspeed.
- Elevator shaft 1 is guided by a car 2 Drive motor 3 with a traction sheave 4 via ropes 5 driven.
- Measuring bar 6 On one side of the elevator shaft 1 is one Measuring bar 6 attached.
- the measuring bar 6 consists of a marking track in the form a flag train 8 and a control track 9 and is off a resistant material, preferably made of Made of sheet steel.
- the fork light barrier 7 is on the Cab roof arranged so that it into the flag train 8 and engages in the control lane 9.
- the measuring bar 6 is over the entire shaft length attached.
- For scanning by the Fork light barrier 7 are 6 markings on the measuring bar attached in the form of flags 10 and windows 13. On those places where a flag 10 in the flag path 8 stands, a window 13 is attached in the control lane 9. At this point the light beam is the Fork light barrier 7 at the control track 9 free and can getting tested. Because of this arrangement ensures that there is always at least one light barrier is interrupted.
- the length of the flags 10 is in each case adjusted maximum speed of cabin 2, i.e. against the upper and lower end of the shaft are the Flag segments 10 always shorter. Now the depth of engagement is correct the fork light barrier 7 in the flag train 8 not or if a flag 10 is missing, all light barriers are released. Due to this condition, the errors are recognized and the Safety switching elements opened by the control.
- the design of the markings on the measuring bar 6 can also be done in various other ways, such as for example as slots, holes or in the form of a Strips with reflective and non-reflective Sections.
- Fig.2 shows a fork light barrier 7.
- This Fork light barrier 7 is two-channel, each with three, preferably infrared light barriers 14 built per channel and a monitoring circuit, which the state and the The measurement results of the two channels are compared.
- Per channel a first light barrier 15, 16 used to pass the time the flag 10 to measure.
- the second light barrier 17, 18 is offset vertically to determine if the Flag passed or was just touched.
- the third Light barrier 19, 20 is located in the control lane 9 and serves to determine whether all flag segments 10 are present are and the fork light barrier 7 is correctly installed. Both channels of the fork light barrier 7 take over same functions. To influence each other to exclude a total of six light barriers 14 only one transmitter switched on at a time.
- the coordination between the light barriers 14 is by a Channel switchover accepted. Should when switching channels If an error occurs, the safety switching elements open. A malfunction is recognized if both channels send at the same time or when the time required for the Operation of a light barrier 14 deviates from the normal value.
- the two channels measure the independently Flags transit time.
- Channel A and Channel B are constructed identically. In the following only channel A described.
- a channel switch 24 takes over Coordination of light barriers 14, i.e. switching from one light barrier 14 to the next, of the two channels A, B.
- the optical parts 25, 26, 27 are constructed identically. They consist essentially of transmitter and Receiver units as well as a sequence control and transmitter and Receiver test units. Building such Light barrier is described in EP 483 560.
- the first two opto parts 25, 26 scan the flag web 8.
- the Edge detection 28 starts when immersed in a flag 10 a counter 29. When leaving the flag 10, the Counter 29 stopped, the counter reading a buffer 30 passed and the counter 29 reset. In order to the counter 29 is ready for the next time measurement.
- the counter 29 counts with a constant count clock 37 Monitoring the time base 38 checks the counter clock 37. On incorrect control lane signal 39 is caused by the monitoring the control lane 40 is detected. A relay watchdog 41 controls the reset pulses. Optical error signals 42 can by the receiver and transmitter test units of the Opto parts 25, 26, 27 are detected. Should one of the The above-mentioned errors occur, the safety relays 34, 35 open.
- the relays 34, 35 have two positively driven ones Switch contacts 45, 46, one switch contact in each Working circuit 47 is.
- the second relay contact is used for Relay status monitoring 48. Faulty Relay states lead to the relay switch off command. In normal Elevator operation no overspeed occurs. this has with the result that the relays 34, 35 are never switched off must and therefore their function can not be checked. To ensure the function of the relay safety contacts check, they must be opened without the To interrupt the working circuit. That is why per channel (A, B) two safety relays (34, 35) installed, their Switch contacts (45, 46) are connected in parallel. About the to work contacts positively guided contacts can Function of the work contacts are checked if that Relay (34, 35) is switched. With the help of the bridging of the working circuit 49 this test is possible without to open the working circuit 47.
- Fig.4 shows a waveform diagram of the Fork light barrier in faultless operating condition without Overspeed.
- the upper course represents that Flag train signal 51, the lower course that Control lane signal 52.
- the transit time 53 measured and any overspeed detected. Since there is always a flag 10 and a on the measuring bar 6 Window 13 may face the lack of Flag segments 10 or incorrect positioning of the Fork light barrier 7 can be recognized immediately, because within the Passage time 53 of flags 10 always one Control window detection 54 takes place.
- FIG 5 shows a signal waveform diagram of FIG Fork light barrier with an incorrect depth of engagement of the Fork light barrier 7 or 10 if there are no flag segments. In both cases, the light rays are at the flag train 8 and the control lane 9 free at the same time.
- the Control path monitoring 40 and edge detection 28 recognize the error state 55 and open the Safety relay 34, 35. As soon as an error occurs, throws the channel that first discovered it, its relays every now and then issues the relay shutdown command to the other channel.
- FIG. 6 shows a second exemplary embodiment of a measuring bar 65 according to the inventive device.
- This measuring bar 65 has in addition to a marking track in the form of a Flag train 66 and a control track 67 additionally one Security lane 68 on. This track is used for additional Control at the top and bottom of the shaft.
- To this end has the measuring bar 65 between the flag train 66 and the Control lane 67 has a free strip 69 in the area at least one each of the upper and lower shaft ends Has mark in the form of a slot or hole 70.
- the belonging to this embodiment Fork light barrier therefore has another Pair of light barriers, based on the slot or the hole 70 the shaft end can detect.
- the arrangement of the Flags 10 and window 13 is with the first Embodiment identical. This version enables an additional higher operational security against False triggers such as in case of contamination of the Measuring bar 65 when the control window 13 through the Light barriers 19, 20 can no longer be recognized.
- Fig. 7 shows a third embodiment of a measuring bar 75 with a longitudinal section through the fork light barrier 76 after the device according to the invention.
- This measuring bar 75 consists of a marker strip in the form of a window strip 77 and a control track 78.
- the measuring bar 75 points alternately markings in the form of windows 79 the window membrane 77 and the control membrane 78.
- the window 79 of both tracks are the same size and are each in the middle between two windows 79 of the other track arranged. Because of this arrangement the windows are 79 the light barriers 80 of the two channels A and B symmetrically appropriate.
- the recording of the measured values can be made available or the interruption of the light beams in the light barrier of the track in question.
- An advantage of this variant is that through a web 81 in front of the window membrane 77 Protection against contact is formed, which is a tearing off of the Measuring bar 75 prevented due to protruding parts.
- FIG. 8 shows a signal curve diagram of the light barriers 80 according to the third embodiment.
- This Waveform diagram shows an error-free Operating condition.
- the upper course represents that Window path signal 82, the lower course that Control lane signal 83. Detecting Overspeed occurs in the same way as with first embodiment. As more mistakes can be recognized if a pulse is missing, a channel constant Has level 0 or constant level 1.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Types And Forms Of Lifts (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH347594 | 1994-11-18 | ||
CH3475/94 | 1994-11-18 | ||
CH347594 | 1994-11-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0712804A1 EP0712804A1 (de) | 1996-05-22 |
EP0712804B1 true EP0712804B1 (de) | 2002-06-05 |
Family
ID=4256779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95117394A Expired - Lifetime EP0712804B1 (de) | 1994-11-18 | 1995-11-04 | Übergeschwindigkeitsdetektor für Aufzugsanlagen mit mehrfacher Lichtschranke |
Country Status (14)
Country | Link |
---|---|
US (1) | US5648645A (sv) |
EP (1) | EP0712804B1 (sv) |
JP (1) | JP4004564B2 (sv) |
CN (1) | CN1040863C (sv) |
AU (1) | AU702033B2 (sv) |
BR (1) | BR9505214A (sv) |
CA (1) | CA2161291C (sv) |
DE (1) | DE59510226D1 (sv) |
ES (1) | ES2177599T3 (sv) |
FI (1) | FI109896B (sv) |
HK (1) | HK1012324A1 (sv) |
MY (1) | MY113857A (sv) |
SG (1) | SG46957A1 (sv) |
ZA (1) | ZA959799B (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG120250A1 (en) * | 2004-08-12 | 2006-03-28 | Inventio Ag | Elevator installation with a car and a device for determining a car position and method for operating such an elevator installation |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6161653A (en) * | 1998-12-22 | 2000-12-19 | Otis Elevator Company | Ropeless governor mechanism for an elevator car |
US6253879B1 (en) | 1998-12-22 | 2001-07-03 | Otis Elevator Company | Apparatus and method of determining overspeed of an elevator car |
US6173813B1 (en) | 1998-12-23 | 2001-01-16 | Otis Elevator Company | Electronic control for an elevator braking system |
US6170614B1 (en) | 1998-12-29 | 2001-01-09 | Otis Elevator Company | Electronic overspeed governor for elevators |
ES2204222B1 (es) * | 2001-03-28 | 2005-08-01 | Raul Broch Coronado | Detector electronico y medios complementarios de actuacion sobre paracaidas de ascensores. |
US7102726B2 (en) | 2002-03-15 | 2006-09-05 | Lg. Philips Lcd Co., Ltd. | System for fabricating liquid crystal display and method of fabricating liquid crystal display using the same |
EP1493706B1 (en) * | 2002-04-10 | 2012-09-26 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
FI118333B (sv) * | 2004-01-09 | 2007-10-15 | Kone Corp | Anordning i en hiss för detektering och hejdande av en okontrollerad rörelse hos korgen |
CN1780779B (zh) * | 2004-04-06 | 2010-10-27 | 三菱电机株式会社 | 电梯装置 |
DE102004037486B4 (de) * | 2004-07-27 | 2006-08-10 | ThyssenKrupp Aufzüge GmbH | Signalband und System zum Bestimmen eines Bewegungszustandes eines bewegten Körpers sowie diese verwendende Vorrichtung zur Geschwindigkeitsbegrenzung des bewegten Körpers, insbesondere eines Aufzugfahrkorbes |
EP1637493B1 (de) * | 2004-08-12 | 2010-05-26 | Inventio Ag | Aufzugsanlage mit einer Kabine und einer Einrichtung zur Ermittlung einer Kabinenposition sowie Verfahren zum Betreiben einer solchen Aufzugsanlage |
DE102004058756A1 (de) * | 2004-12-06 | 2006-06-14 | Siemens Ag | Geschwindigkeitsüberwachungsverfahren in einem Automatisierungssystem für eine Förderanlage |
ES2293392T5 (es) * | 2005-01-07 | 2011-07-20 | Thyssenkrupp Elevator Ag | Ascensor con sistema de control. |
JP2007137554A (ja) * | 2005-11-16 | 2007-06-07 | Nippon Otis Elevator Co | エレベーターの終端階強制減速装置 |
KR100817361B1 (ko) * | 2005-12-02 | 2008-03-26 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터 장치 및 그 제어 방법 |
FI118641B (sv) * | 2006-06-21 | 2008-01-31 | Kone Corp | Förfarande och system i en hiss för detektering och hejdande av en okontrollerad rörelse hos korgen |
CN101190764B (zh) * | 2006-11-20 | 2014-07-16 | 上海三菱电梯有限公司 | 电梯超速检测装置 |
DE202007007290U1 (de) * | 2007-05-21 | 2007-08-23 | Sick Ag | Optoelektronische Sensoranordnung |
CN102292540B (zh) * | 2008-11-26 | 2014-08-06 | 动力能源公司 | 适应性、低碰撞车辆能量收获器 |
EP2425171A4 (en) * | 2009-01-09 | 2017-01-18 | Kinetic Energy Corporation | Vehicle energy harvesting roadway |
CA2788183A1 (en) | 2009-01-27 | 2010-08-05 | Kinetic Energy Corporation | Vehicle speed detection means for power generation system |
ES2536702T3 (es) | 2009-12-22 | 2015-05-27 | Inventio Ag | Procedimiento y dispositivo para determinar el movimiento y/o la posición de una cabina de ascensor |
DE102010016684A1 (de) | 2010-04-29 | 2011-11-03 | Sartorius Ag | Gabellichtschranke, Vorrichtung und Verfahren zur Positionsbestimmung mittels einer Gabellichtschranke |
SG185682A1 (en) * | 2010-05-26 | 2013-01-30 | Hitachi Ltd | Electronic safety elevator |
DE102010024566A1 (de) * | 2010-06-10 | 2011-12-15 | Repower Systems Ag | Windenergieanlage und Verfahren zum Prüfen eines Drehzahlrelais einer Windenergieanlage |
US20120118678A1 (en) * | 2010-11-16 | 2012-05-17 | Daniel Meierhans | Code strip for an elevator installation |
CN102976175B (zh) * | 2012-11-30 | 2014-12-10 | 江南嘉捷电梯股份有限公司 | 一种电梯测速装置 |
EP2842900B1 (de) * | 2013-08-29 | 2016-03-09 | Cedes AG | Verbindungsvorrichtung für Messbänder in Aufzugvorrichtungen |
EP2842898B1 (de) * | 2013-08-29 | 2015-12-30 | Cedes AG | Verbindungsvorrichtung für Messbänder in Aufzugvorrichtungen |
CN108254587A (zh) * | 2016-12-29 | 2018-07-06 | 北京京东尚科信息技术有限公司 | 物流系统及交叉带分拣机环形线运行速度检测装置 |
EP3345852B1 (en) * | 2017-01-09 | 2023-03-01 | KONE Corporation | Power controller |
EP3366626B1 (en) | 2017-02-22 | 2021-01-06 | Otis Elevator Company | Elevator safety system and method of monitoring an elevator system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318456A (en) * | 1980-05-16 | 1982-03-09 | Westinghouse Electric Corp. | Terminal slowdown control for elevator system |
US4434874A (en) * | 1982-03-10 | 1984-03-06 | Westinghouse Electric Corp. | Elevator system |
US4499974A (en) | 1983-08-30 | 1985-02-19 | Westinghouse Electric Corp. | Terminal slowdown speed pattern generator |
ATE126172T1 (de) * | 1990-10-31 | 1995-08-15 | Inventio Ag | Zweikanalige gabellichtschranke in failsafe- ausführung. |
US5135081A (en) * | 1991-05-01 | 1992-08-04 | United States Elevator Corp. | Elevator position sensing system using coded vertical tape |
-
1995
- 1995-10-24 CA CA002161291A patent/CA2161291C/en not_active Expired - Fee Related
- 1995-11-01 SG SG1995001702A patent/SG46957A1/en unknown
- 1995-11-04 EP EP95117394A patent/EP0712804B1/de not_active Expired - Lifetime
- 1995-11-04 ES ES95117394T patent/ES2177599T3/es not_active Expired - Lifetime
- 1995-11-04 DE DE59510226T patent/DE59510226D1/de not_active Expired - Lifetime
- 1995-11-14 JP JP29542695A patent/JP4004564B2/ja not_active Expired - Fee Related
- 1995-11-16 CN CN95119298A patent/CN1040863C/zh not_active Expired - Fee Related
- 1995-11-16 FI FI955518A patent/FI109896B/sv not_active IP Right Cessation
- 1995-11-17 ZA ZA9509799A patent/ZA959799B/xx unknown
- 1995-11-17 BR BR9505214A patent/BR9505214A/pt not_active IP Right Cessation
- 1995-11-17 AU AU37925/95A patent/AU702033B2/en not_active Ceased
- 1995-11-17 MY MYPI95003511A patent/MY113857A/en unknown
- 1995-11-20 US US08/561,088 patent/US5648645A/en not_active Expired - Lifetime
-
1998
- 1998-12-16 HK HK98113564A patent/HK1012324A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG120250A1 (en) * | 2004-08-12 | 2006-03-28 | Inventio Ag | Elevator installation with a car and a device for determining a car position and method for operating such an elevator installation |
Also Published As
Publication number | Publication date |
---|---|
DE59510226D1 (de) | 2002-07-11 |
FI955518A0 (sv) | 1995-11-16 |
CA2161291A1 (en) | 1996-05-19 |
US5648645A (en) | 1997-07-15 |
ES2177599T3 (es) | 2002-12-16 |
FI109896B (sv) | 2002-10-31 |
CN1131121A (zh) | 1996-09-18 |
AU702033B2 (en) | 1999-02-11 |
JPH08240607A (ja) | 1996-09-17 |
BR9505214A (pt) | 1997-09-16 |
JP4004564B2 (ja) | 2007-11-07 |
HK1012324A1 (en) | 1999-07-30 |
FI955518A (sv) | 1996-05-19 |
CN1040863C (zh) | 1998-11-25 |
SG46957A1 (en) | 1998-03-20 |
CA2161291C (en) | 2006-01-10 |
MY113857A (en) | 2002-06-29 |
EP0712804A1 (de) | 1996-05-22 |
AU3792595A (en) | 1996-05-23 |
ZA959799B (en) | 1997-02-04 |
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