EP2167413A1 - Überwachungsverfahren einer aufzugsanlage - Google Patents
Überwachungsverfahren einer aufzugsanlageInfo
- Publication number
- EP2167413A1 EP2167413A1 EP08774798A EP08774798A EP2167413A1 EP 2167413 A1 EP2167413 A1 EP 2167413A1 EP 08774798 A EP08774798 A EP 08774798A EP 08774798 A EP08774798 A EP 08774798A EP 2167413 A1 EP2167413 A1 EP 2167413A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- signal
- bus node
- monitoring method
- transmitter
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000002269 spontaneous effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 13
- 238000010998 test method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/22—Operation of door or gate contacts
-
- 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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
Definitions
- the invention relates to a monitoring method of an elevator installation according to the definition of the preamble of the independent patent claim.
- Conventional elevator systems have safety circuits consisting of series-connected safety elements.
- these security elements monitor the condition of manhole or cabin doors.
- Such a security element can be a contact.
- An open contact shows that e.g. a door is open and a potentially inadmissible door condition has occurred. If an inadmissible open state of the doors is identified when the contact is open, the safety circuit is interrupted. This has the consequence that a drive or brakes, which act on the travel of an elevator car, bring the elevator car to a standstill.
- WO2005 / 000727 discloses a safety system for an elevator installation which has a control unit and at least one bus node and a bus.
- the bus allows communication between the bus node and the control unit.
- the bus node monitors by means of a security element that is part of the bus node, for example, the state of manhole and cabin doors.
- the bus node consists of a receiver and a transmitter.
- the receiver is designed so that it reads digital presetting signals from the control unit, converts them into an analog signal and acts on the security element.
- the sender measures the analogue signal after the safety element and converts it into a digital signal.
- the transmitter represents the control unit This digital information is available. This information is either sent from the bus nodes as digital signals to the control unit or is requested by the control unit by means of a query.
- control unit To ensure safe operation of the elevator system and the current state of the elevator system is known, digital information between the control unit and the bus node must be exchanged in short time intervals. This means that the control unit must have high computing capacities to evaluate a large number of digital signals and information.
- the bus is heavily loaded by signals that are transmitted between the control unit and the bus node, and has correspondingly high data transmission capacities.
- the object of the present invention is thus to provide a monitoring method of an elevator installation, with a reduced data exchange between the control unit and bus node and with a control unit which has lower computing capacities.
- the monitoring method according to the invention of an elevator installation has a control unit and at least one bus node.
- This bus node has a receiver, a transmitter and a security element.
- the control unit and the bus node communicate via a bus.
- the procedure performs the following steps:
- control unit transmits a digital default signal to the receiver;
- digital preset signal is converted by the receiver into an analogue signal;
- the security element is acted upon by the receiver with the analog signal
- a digital signal of the control unit is provided by the transmitter.
- the transmitter Upon detection of an analog null signal, the transmitter transmits a digital signal to the control unit.
- the advantage of this monitoring method lies in the low data exchange between the control unit and the bus node. Since the bus node with open security element, so if e.g. a shaft door or car door is open, communicates this potentially dangerous state of the control unit, eliminates a consistently short-timed communication between the control unit and bus node. Therefore, control units with lower computing capacities and buses with smaller data transmission capacities can be used, which leads to lower costs.
- the digital command signal is transmitted from the control unit to the receiver at time intervals.
- the security element is acted upon by the receiver with an analog signal corresponding to the preceding digital default signal.
- the digital signal provided by the transmitter is polled by the control unit at time intervals. These time intervals are preferably selected on the order of 100 s.
- the advantage of this relatively long preset and query intervals is a further relief of the bus between the control unit and the bus node and a further reduction of the signals and data to be processed by the control unit.
- a digital signal is transmitted spontaneously from the transmitter to the control unit. This is e.g. This is the case when the transmitter detects an analogue zero signal when the security element is open. Due to the spontaneous transmission of the digital signal, measures are taken by the control unit to bring the elevator into a safe operating state.
- the advantage of the spontaneous transmission of a digital signal from the transmitter to the control unit is based on the fact that the elevator can be operated safely despite relatively long preset and interrogation intervals.
- the monitoring method also includes a test method.
- a test procedure a bus node is tested by the control unit at time intervals. This test procedure is performed by the control unit at least once a day.
- the bus node is acted upon by the control unit with a digital zero-specification signal, which is converted by the receiver into an analog zero signal. Accordingly, the transmitter measures an analog zero signal. It is thus transmitted a correct digital signal from the bus node spontaneously to the control unit with the correct operation.
- the advantage of this test method lies in the simple and reliable verification of the functionality of a Bus node, respectively, the spontaneous transmission behavior of the transmitter.
- this test procedure an opened security element is simulated and the corresponding spontaneous transmission behavior of the transmitter is provoked.
- the functionality of the bus node for normal operation is already tested at each default polling cycle.
- Fig.l is a schematic view of a security system according to the invention.
- FIG. 1 A schematic view of a second embodiment of a security system according to the invention.
- FIG. 3 is a schematic view of a third embodiment of a security system according to the invention.
- Fig.l shows an embodiment of a security system 10 according to the invention, which is technically adapted to carry out the monitoring process.
- the security system 10 has a control unit 11 and at least one bus node 13. The communication between the control unit 11 and the bus node 13 via a bus 12. So it can be sent between the bus node 13 and the control unit 11 data in both directions via the bus ,
- the bus node 13 itself consists of a receiver 14, a transmitter 15 and a security element 16.
- the receiver 14 or the transmitter 15 are each designed so that the former receives control signals 11 from the control unit 11 and provides the latter status information as signals of the control unit 11.
- the control unit 11, the bus 12 and the at least one bus node 13 form a bus system. Within this bus system each bus node 13 has its own, unique address. This message is used to establish the message between the controller 11 and a bus node 13.
- the control unit 11 is via the bus 12 digital Vorga- besignale signals to the receiver 14.
- the control unit addresses a particular bus node 13 and tells its receiver 14, the default signal.
- the receiver 14 receives this default signal and generates the default signal corresponding to an analog signal which is applied to the security element 16.
- the application of the analog signal is symbolized by the arrow 16.1.
- the analog signal can be a certain voltage, current or frequency.
- the security element 16 shows the state of a security-relevant element.
- the security element 16 finds e.g. as door contact, latch contact, buffer contact, flap contact, sensor, actuator, drive switch or emergency stop switch application.
- the security element 16 is designed such that a closed security element 16 represents a safe state and an open security element 16 a potentially dangerous state of an elevator installation.
- the transmitter 15 behind the security element 16 the incoming analog signal. This measurement is indicated by the arrow 16.2. provides. After the measurement, the transmitter 15 converts the measured analog signal into a digital signal. The transmitter 15 finally provides the digital signal to the control unit 11.
- the control unit 11 sends a current, voltage or frequency value specification signal to a selected bus node 13 by indicating the address of the bus node 13 and a current, voltage or frequency value in digital form.
- This default signal is renewed at certain time intervals, i. the control unit 11 sends the bus node 13 a new current, voltage or frequency value.
- the new value is different from the previous value.
- the receiver generates a certain analog signal according to the default signal.
- the transmitter 15 measures this analog signal and provides the measured value as a digital signal.
- the control unit 11 addresses the transmitter 15 of the bus node 13 and provides the data of the current, voltage or frequency value provided as a digital signal via a read function.
- time intervals between such default polling cycles are basically freely adjustable and depend primarily on the reliability of the bus node components. Preferably, these time intervals last several seconds. With high reliability, you can also set time intervals of 100s or longer.
- the control unit 11 performs this procedure with all
- Bus node 13 in turn and checks their resonance. That the default signals and those of the respective stations
- a fault current, an error voltage or an error frequency is present when the transmitter 15 measures a current of 0 mA, a voltage of 0 mV or a frequency of 0 Hz. This corresponds to the state of an opened security element, e.g. an open cabin or shaft door.
- the transmitter 15 sends the measured value spontaneously to the control unit 11. Thanks to the unique address of the bus node 13, the control unit 11 is able to pinpoint the error accurately. If necessary, the control unit 11 takes measures to remedy the error or to convert the elevator into a safe operating mode.
- These operating modes include i.a.
- the secure operation of a bus node 13 depends primarily on the functionality of the receiver 14 and transmitter 15. Since the receiver 14 and the transmitter 15 are already tested at each default polling cycle on their functionality in normal operation, the bus node 13 requires a separate test to check the spontaneous transmission behavior of the transmitter 15 when an error occurs. In this separate test, an open security element 16 is simulated. The control unit 11 simulates the opened security element 16 in that a default signal of 0 mA, 0 mV or 0 Hz is given to a specific bus node 13. It is therefore a zero default test. If the functioning of the bus node 13 is correct, the bus node 13 or its transmitter 15 must spontaneously report to the control unit 11. This test guarantees that each opening of a security element 16 leads to a spontaneous transmission of a digital signal of the bus node 13 to the control unit 11.
- This test is performed in a timely manner for each bus node 13. Since during this test the control unit 11 can not recognize any real information about the state of the safety element 16 of a bus node 13 being tested, the test time is kept as short as possible and the test is performed only as often as necessary. The test time is largely dependent on the speed of data transmission via the bus 12 and is usually 50 to 100 ms. The frequency of the zero-prescription test depends primarily on the reliability of the transmitter 15 used. The more reliable the transmitter 15, the less frequently it must be tested in order to ensure safe operation of the elevator.
- the zero-prescription test is carried out at least once a day. This test can also be repeated in the order of minutes or hours.
- each bus node 13 thus has min. At least two security elements 16.a, 16.b, 16.n In FIG. 2, for example, three security elements 16.a, 16.b, 16.n monitor the condition of a safety-relevant element of the elevator.
- Each security element 16.a, 16.b, 16.n is preferably located at a separate outlet l ⁇ .la, l ⁇ .lb, l ⁇ .ln of the receiver 14, the security elements 16. a, 16. b, 16. n according to Asserted default signal of the control unit 11 with an analog signal. These signals may have the same or different values.
- the transmitter 15 measures at a respective separate input 16. 2. a, 16.2. b, 16.2. n the incoming analog signal. In normal operation, the transmitter 15 provides the measured analog values as digital signals to the control unit 11, which regularly polls the bus nodes 13. If at an entrance 16.2. a, 16.2. b, 16.2. n an analog zero signal is measured, this reports the transmitter 15 of the control unit 11 spontaneously.
- FIG. 3 shows a third embodiment of the security system 10 according to the invention.
- the states of several safety-related elements of the elevator are detected by means of a bus node 13.
- Each state of a security-relevant element is detected by a security element 16. d, 16. e, 16. m.
- the combination of the security elements 16. d, 16. e, 16. m in a bus node 13 is preferably realized when the security-relevant elements to be monitored are spatially close to each other, such as upper adjacent shaft doors or the cabin door and an alarm button attached to the elevator car.
- the control unit 11 preferably sends for each security element 16. d, 16. e, 16. m different default signals to the receiver 14.
- the receiver 14 converts the default signals into a corresponding analog signal and acts on the respective security element 16. d, 16. e, 16. m via a separate output l ⁇ .ld, l ⁇ .le, l ⁇ .lm
- the transmitter 15 measures for each security element at a separate input 16.2. d, 16.2. e, 16.2. m the incoming analog signal.
- the transmitter provides the measured analog values as digital signals to the control unit 11, which periodically polls the bus nodes 13.
- the transmitter 15 also provides the information at which input 16.2. d, 16.2. e, 16.2. m the analogue signal was measured. If at an entrance 16.2. d, 16.2. e, 16.2. m analog zero signal is measured, thanks to the separate inputs 16.2. d, 16.2. e, 16.2. m, uniquely locate the source of the error.
- the advantage of this embodiment is the smaller number of required bus node 13 and the resulting cost savings.
- bus node 13 can be designed such that the state of several security-relevant elements of the elevator is detected with one redundant security element 16 each.
- the bus nodes 13 described in FIGS. 2 and 3 become available during normal operation at each default polling cycle their resonance and tested by means of a zero-preset signal. These tests are preferably carried out for each security element 16. a, 16. b, 16. n; 16. d, 16. e, 16. m separately. So that the functionality of all outputs of the receiver 14 and all inputs of the transmitter 15 is individually tested.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Small-Scale Networks (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08774798A EP2167413B1 (de) | 2007-07-17 | 2008-07-04 | Überwachungsverfahren einer aufzugsanlage |
PL08774798T PL2167413T3 (pl) | 2007-07-17 | 2008-07-04 | Sposób nadzorowania dźwigu szybowego |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07112651 | 2007-07-17 | ||
PCT/EP2008/058721 WO2009010410A1 (de) | 2007-07-17 | 2008-07-04 | Überwachungsverfahren einer aufzugsanlage |
EP08774798A EP2167413B1 (de) | 2007-07-17 | 2008-07-04 | Überwachungsverfahren einer aufzugsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2167413A1 true EP2167413A1 (de) | 2010-03-31 |
EP2167413B1 EP2167413B1 (de) | 2012-12-05 |
Family
ID=38984174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08774798A Active EP2167413B1 (de) | 2007-07-17 | 2008-07-04 | Überwachungsverfahren einer aufzugsanlage |
Country Status (14)
Country | Link |
---|---|
US (1) | US8443944B2 (de) |
EP (1) | EP2167413B1 (de) |
JP (1) | JP2011502908A (de) |
KR (1) | KR20100043185A (de) |
CN (1) | CN101754920B (de) |
AU (1) | AU2008277777B2 (de) |
BR (1) | BRPI0814107A2 (de) |
ES (1) | ES2400928T3 (de) |
HK (1) | HK1145485A1 (de) |
MX (1) | MX2010000566A (de) |
MY (1) | MY159057A (de) |
PL (1) | PL2167413T3 (de) |
RU (1) | RU2482050C2 (de) |
WO (1) | WO2009010410A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK2401221T3 (da) * | 2009-02-25 | 2013-11-11 | Inventio Ag | Elevator med et overvågningssystem |
KR102003576B1 (ko) | 2011-08-11 | 2019-07-24 | 인벤티오 아게 | 엘리베이터 시스템용 시험 방법 및 이 시험 방법을 실행하는 모니터링 장치 |
EP2607286A1 (de) | 2011-12-19 | 2013-06-26 | Inventio AG | Testverfahren einer Aufzugsanlage und eine Überwachungseinrichtung zum Durchführen des Testverfahrens |
EP2741989B1 (de) * | 2011-08-11 | 2015-03-04 | Inventio AG | Funktionsüberwachung eines sicherheitselementes |
EP3060509B1 (de) * | 2013-10-23 | 2020-12-16 | Inventio AG | Sicherheitssystem für einen aufzug, aufzugsanlage und verfahren zum betreiben eines solchen sicherheitssystems |
EP3083478B1 (de) * | 2013-12-18 | 2022-06-08 | Inventio AG | Sicherheitssystem für eine aufzugsanlage |
EP2930134B1 (de) | 2014-04-09 | 2018-05-30 | Kone Corporation | Sicherheitssystem und Verfahren für sicherheitskritische Komponenten in einer Aufzugsanlage |
MY185020A (en) * | 2014-12-10 | 2021-04-30 | Inventio Ag | Elevator system comprising with a safety monitoring system with a master/slave hierarchy |
CN107250021B (zh) * | 2014-12-18 | 2019-10-11 | 因温特奥股份公司 | 用于运行具有临时参与者的电子安全系统的方法 |
RU2696645C2 (ru) * | 2014-12-18 | 2019-08-05 | Инвенцио Аг | Способ эксплуатации электронной системы безопасности с временными участниками |
US11365088B2 (en) | 2015-12-21 | 2022-06-21 | Inventio Ag | Monitoring device for a passenger transport system, testing method and passenger transport system |
US10745244B2 (en) | 2017-04-03 | 2020-08-18 | Otis Elevator Company | Method of automated testing for an elevator safety brake system and elevator brake testing system |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU7624974A (en) * | 1973-12-20 | 1976-06-10 | Production Eng Co Ltd | Electric fences |
JPH02233486A (ja) * | 1989-02-28 | 1990-09-17 | Otis Elevator Co | エレベータ用ケーブル断線検出装置 |
DE9015495U1 (de) * | 1990-11-12 | 1992-01-02 | Technischer Überwachungs-Verein Bayern e.V., 8000 München | Meßwertaufnehmer zum Erfassen physikalischer Kenngrößen eines Personen- und/oder Lastenaufzugs |
JP3045790B2 (ja) * | 1991-01-28 | 2000-05-29 | 三菱電機株式会社 | エレベーターの信号伝送装置 |
US5387769A (en) * | 1993-06-01 | 1995-02-07 | Otis Elevator Company | Local area network between an elevator system building controller, group controller and car controller, using redundant communication links |
US6173814B1 (en) * | 1999-03-04 | 2001-01-16 | Otis Elevator Company | Electronic safety system for elevators having a dual redundant safety bus |
RU15716U1 (ru) * | 2000-07-28 | 2000-11-10 | Горохов Сергей Львович | Устройство для анализа состояния дверей шахты лифта |
CN1132776C (zh) * | 2000-07-29 | 2003-12-31 | 肖明欢 | 电梯门锁开关监测装置及其监测方法 |
US6267219B1 (en) * | 2000-08-11 | 2001-07-31 | Otis Elevator Company | Electronic safety system for escalators |
US6467585B1 (en) * | 2001-07-05 | 2002-10-22 | Otis Elevator Company | Wireless safety chain for elevator system |
CA2458460C (en) * | 2001-09-18 | 2010-12-07 | Inventio Ag | Safety circuit for lift doors |
ES2291884T5 (es) * | 2003-06-30 | 2013-11-29 | Inventio Ag | Sistema de seguridad para una instalación de ascensor |
US7353914B2 (en) * | 2003-10-20 | 2008-04-08 | Inventio Ag | Safety system for an elevator |
US7334665B2 (en) * | 2004-03-02 | 2008-02-26 | Thyssenkrupp Elevator Capital Corporation | Interlock wiring communication system for elevators |
WO2007026416A1 (ja) * | 2005-08-31 | 2007-03-08 | Mitsubishi Denki Kabushiki Kaisha | エレベータの制御システム |
EP2164790B1 (de) * | 2007-06-18 | 2015-09-30 | Inventio AG | Einrichtung und verfahren zum überwachen einer bremseinrichtung |
EP2022742B1 (de) * | 2007-08-07 | 2014-06-25 | ThyssenKrupp Elevator AG | Aufzugsystem |
EP2331443B1 (de) * | 2008-09-19 | 2013-05-15 | Inventio AG | Rufeingabevorrichtung und verfahren zum betreiben einer aufzugsanlage |
-
2008
- 2008-07-04 US US12/669,322 patent/US8443944B2/en active Active
- 2008-07-04 EP EP08774798A patent/EP2167413B1/de active Active
- 2008-07-04 RU RU2010105545/11A patent/RU2482050C2/ru active
- 2008-07-04 AU AU2008277777A patent/AU2008277777B2/en not_active Ceased
- 2008-07-04 WO PCT/EP2008/058721 patent/WO2009010410A1/de active Application Filing
- 2008-07-04 ES ES08774798T patent/ES2400928T3/es active Active
- 2008-07-04 JP JP2010516454A patent/JP2011502908A/ja active Pending
- 2008-07-04 PL PL08774798T patent/PL2167413T3/pl unknown
- 2008-07-04 MX MX2010000566A patent/MX2010000566A/es active IP Right Grant
- 2008-07-04 CN CN2008800249407A patent/CN101754920B/zh active Active
- 2008-07-04 BR BRPI0814107-0A2A patent/BRPI0814107A2/pt active IP Right Grant
- 2008-07-04 KR KR1020107000933A patent/KR20100043185A/ko not_active IP Right Cessation
- 2008-07-04 MY MYPI2010000192A patent/MY159057A/en unknown
-
2010
- 2010-12-15 HK HK10111679.3A patent/HK1145485A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2009010410A1 * |
Also Published As
Publication number | Publication date |
---|---|
MX2010000566A (es) | 2010-03-08 |
AU2008277777A1 (en) | 2009-01-22 |
PL2167413T3 (pl) | 2013-05-31 |
CN101754920A (zh) | 2010-06-23 |
US20120273307A1 (en) | 2012-11-01 |
RU2482050C2 (ru) | 2013-05-20 |
CN101754920B (zh) | 2013-07-03 |
US8443944B2 (en) | 2013-05-21 |
AU2008277777B2 (en) | 2014-01-16 |
MY159057A (en) | 2016-12-15 |
HK1145485A1 (en) | 2011-04-21 |
KR20100043185A (ko) | 2010-04-28 |
BRPI0814107A2 (pt) | 2015-02-03 |
ES2400928T3 (es) | 2013-04-15 |
RU2010105545A (ru) | 2011-08-27 |
EP2167413B1 (de) | 2012-12-05 |
JP2011502908A (ja) | 2011-01-27 |
WO2009010410A1 (de) | 2009-01-22 |
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