EP2818441A1 - Erdbebensensorgerät von einer Aufzugsvorrichtung - Google Patents

Erdbebensensorgerät von einer Aufzugsvorrichtung Download PDF

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Publication number
EP2818441A1
EP2818441A1 EP13174335.3A EP13174335A EP2818441A1 EP 2818441 A1 EP2818441 A1 EP 2818441A1 EP 13174335 A EP13174335 A EP 13174335A EP 2818441 A1 EP2818441 A1 EP 2818441A1
Authority
EP
European Patent Office
Prior art keywords
earthquake sensor
control system
testing
elevator control
status information
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.)
Withdrawn
Application number
EP13174335.3A
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English (en)
French (fr)
Inventor
Juha-Matti Aitamurto
Antti Hovi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Corp
Original Assignee
Kone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kone Corp filed Critical Kone Corp
Priority to EP13174335.3A priority Critical patent/EP2818441A1/de
Publication of EP2818441A1 publication Critical patent/EP2818441A1/de
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • B66B5/022—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system where the abnormal operating condition is caused by a natural event, e.g. earthquake

Definitions

  • the present invention relates to elevator systems. Especially, the invention relates to earthquake sensors in the elevator systems.
  • Modern elevator systems are equipped with sensors which are configured to identify an earthquake emergency situation.
  • an earthquake emergency return mode upon activation of primary and/or secondary wave seismic sensors, all cars stop at the nearest floor, and park there with the doors open to facilitate the safe evacuation of passengers.
  • Some earthquake sensors include internal monitoring functions in order to make sure that they are operational.
  • a drawback of such sensors is that they are not able to detect defects in the connection between the earthquake sensor and the elevator control system. For example, one or more of the following defects may remain undetected:
  • a method for providing testing status information of an earthquake sensor comprises initiating testing with the earthquake sensor of an elevator system; and causing transmission of testing status information from the earthquake sensor to an elevator control system of the elevator system.
  • the method further comprises initiating the testing with the earthquake sensor in response to receiving a testing command from the elevator control system.
  • the method further comprises initiating the testing with the earthquake sensor within a predetermined time frame.
  • the communication between the earthquake sensor and the elevator control system is performed via serial communication.
  • the transmitting comprises transmitting testing status information from the earthquake sensor to the elevator control system via pulse width modulation periodicity changes.
  • initiating comprises initiating the testing with the earthquake sensor in response to receiving a testing command from the elevator control system after identifying a change in impedance in a pulse width modulation output.
  • testing status information indicates at least one of the following: device operational, and an internal failure.
  • the method comprises causing transmission of a signal indicating a secondary wave to the elevator control system; receiving a resetting signal from the elevator control system; and resetting the earthquake sensor device.
  • a method for processing testing status information of an earthquake sensor comprises receiving testing status information from the earthquake sensor to an elevator control system of an elevator system, and determining, with the elevator control system, operability of the earthquake sensor and the connection between the earthquake sensor and the elevator control system based on the received testing status information.
  • the method further comprises causing transmission of a testing command to the earthquake sensor prior to receiving the testing status information.
  • the transmission is triggered after a predetermined time frame expires.
  • the communication between the elevator control system and the earthquake sensor is performed via serial communication.
  • the receiving comprises receiving testing status information from the earthquake sensor via pulse width modulation periodicity changes.
  • the method further comprises causing transmission of a testing command to the earthquake sensor from the elevator control system by changing impedance of a pulse width modulation input.
  • testing status information indicates at least one of the following: device operational, and an internal failure.
  • the method further comprises receiving a signal indicating a secondary wave from the earthquake sensor device; and causing transmission of a resetting signal to the earthquake sensor.
  • a method for determining operational status of an earthquake sensor comprises expecting, with an elevator control system, to receive testing status information from the earthquake sensor within a predetermined time frame; and determining, with the elevator control system, the earthquake sensor to be operationally faulty when receiving no testing status information from the earthquake sensor within the predetermined time frame.
  • an earthquake sensor for providing testing status information to an elevator system.
  • the earthquake sensor comprises means for initiating testing with the earthquake sensor of the elevator system; and a transmitter configured to transmit testing status information from the earthquake sensor to an elevator control system.
  • the earthquake sensor comprises a receiver configured to receive a testing command from the elevator control system, wherein the means for initiating are configured to initiate the testing in response to the testing command.
  • the means for initiating are configured to initiate the testing with the earthquake sensor within a predetermined time frame.
  • the communication between the earthquake sensor and the elevator control system is performed via serial communication.
  • the transmitter is configured to transmit the testing status information from the earthquake sensor to the elevator control system via pulse width modulation periodicity changes.
  • the initiating means are configured to initiate the testing in response to receiving a testing command from the elevator control system after identifying a change in impedance in a pulse width modulation output.
  • testing status information indicates at least one of the following: device operational, and an internal failure.
  • an elevator control system for processing testing status information of an earthquake sensor.
  • the elevator control system comprises a receiver configured to receive testing status information from the earthquake sensor, and means for determining operability of the earthquake sensor based on the received testing status information.
  • the elevator control system comprises a transmitter configured to transmit a testing command to the earthquake sensor prior to receiving the testing status information.
  • the transmission is triggered after a predetermined time frame expires.
  • the communication between the elevator control system and the earthquake sensor is performed via serial communication.
  • the receiver is configured to receive the testing status information from the earthquake sensor via pulse width modulation periodicity changes.
  • the elevator control system comprises a transmitter configured to transmit a testing command to the earthquake sensor by changing impedance of a pulse width modulation input.
  • testing status information indicates at least one of the following: device operational, and an internal failure.
  • the receiver is configured to receive a signal indicating a secondary wave from the earthquake sensor device, and the transmitter is configured to transmit a resetting signal to the earthquake sensor after detecting the secondary wave.
  • a system comprising an earthquake sensor device according to claim 18 and an elevator control system according to claim 19.
  • Figure 1A is a flow diagram illustrating initiating testing with an earthquake sensor of an elevator system according to one embodiment of the invention.
  • an elevator system is equipped with a sensor or sensors which identify an earthquake emergency situation. If an earthquake is detected, a special emergency procedure is executed by the elevator system.
  • Figure 1A provides a solution for testing the operability of the earthquake sensor and the connection between an earthquake sensor device 100 and elevator control system 102.
  • the elevator control system 102 is configured to send a testing command signal 106 to the earthquake sensor device 100.
  • the earthquake sensor device 104 executes a testing procedure 104 and provides the elevator control system 102 with testing status information.
  • testing status codes and a testing status relating to each code have been stored in the elevator control system 102.
  • the elevator control system 102 receives testing status information comprising a testing status code, it is able to determine the actual meaning of the testing status code.
  • the earthquake sensor device 100 may send testing status information that itself includes a description relating to the testing status. Thus, the elevator control system need not store any additional information to be used to interpret the testing status information.
  • the elevator control system 102 receives a confirmation that the earthquake sensor device 100 and the connection between the earthquake sensor device 100 and the elevator control system 102 are operational.
  • the communication between the earthquake sensor device 100 and the elevator control system 102 is performed via serial communication.
  • the earthquake sensor 100 identifies an impedance change by measuring current in a pulse width modulation (PWM) output.
  • the testing status information 108 may be transmitted to the elevator control system 102 via pulse width modulation (PWM) periodicity changes. Examples of PWM signals are presented in Figure 2 .
  • the elevator control system 102 sends to the earthquake sensor 100 a separate testing signal 106, and the earthquake sensor 100 responds to the testing signal with a separate testing status signal 108.
  • Figure 1B is a flow diagram illustrating initiating testing with an earthquake sensor device 100 of an elevator system according to another embodiment of the invention.
  • the embodiment of Figure 1B differs from the embodiment of Figure 1A in that the elevator control system 102 does not transmit a testing command signal to the earthquake sensor device 100.
  • the earthquake sensor device 100 is configured to initiate the testing procedure 110 independently and provides results of the testing to the elevator control system 102 with the testing status information signaling 112.
  • the earthquake sensor device 100 is configured to transmit the testing status information within a predetermined time frame.
  • the elevator control system 102 may deduce that the earthquake sensor device 100 is faulty and is not operational.
  • the predetermined time frame may be configured to be any time interval, for example, 6 hours, 12 hours or 24 hours.
  • the elevator control system 102 may also trigger a transmission of a separate testing command signal to the earthquake sensor 100 in order to verify whether the earthquake sensor device 100 is operational or not.
  • Figure 2 illustrates examples of signals transmitted using pulse width modulation according to one embodiment of the invention.
  • Figure 2 represents exemplary signals that an earthquake sensor device may provide during a testing procedure or during its normal operational mode.
  • the signal 200 indicates that the earthquake sensor device is operational.
  • the signal 202 indicates that a primary wave has been detected.
  • the signal 204 indicates that a secondary wave has been detected.
  • the signal 206 indicates that internal tests are active.
  • the signal 208 indicates that an internal failure has occurred.
  • the earthquake sensor device may transmit the signal 200 or 208 to the elevator control.
  • the signal 208 provides an example of a possible signal for providing further information to the elevator control about the operability of the earthquake sensor device.
  • the signal may mean, for example, that an internal error has occurred during the testing procedure and that the earthquake sensor is not fully operational. It is possible to provide further indications about the operability of the earthquake sensor or its connection interface towards the elevator control system by changing the pulse width modulation of the signals and thus providing more identifiable states.
  • Figure 3 illustrates examples of signals from an earthquake sensor device to an elevator control system according to one embodiment of the invention.
  • the earthquake sensor indicates its status to the elevator control with one signal. The time during which the signal is zero determines the status of the earthquake device.
  • the signal 300 indicates that the earthquake sensor device is operational.
  • the signal 302 indicates that internal tests are active.
  • the signal 308 indicates that an internal failure has occurred. Additional states may be indicated by using different zero signal lengths.
  • the signal 304 may be used to indicate that a primary wave has been detected.
  • the signal 306 may be used to indicate that a secondary wave has been detected.
  • any of the above disclosed techniques for transmitting testing status information between the earthquake sensor device and the elevator control system may be used to transmit signals from the earthquake sensor device to the elevator control system relating to the normal operational mode of the earthquake sensor device, for example, signals indicating the primary or secondary wave.
  • status codes and a status relating to each code have been stored in the elevator control system.
  • the elevator control system receives status information comprising a status code, it is able to determine the actual meaning of the status code.
  • the earthquake sensor device may send status information that itself includes a description relating to the status. Thus, the elevator control system need not store any additional information to be used to interpret the status information.
  • binary coding may also be used to transmit information from an earthquake sensor device to elevator control.
  • the amount of bits used in the coding determines the number of different states that can be indicated. If two bits are used, a bit combination (1,1) may indicate that the earthquake sensor device is operational. A bit combination (1,0) may indicate that internal tests are active in the earthquake sensor device. A bit combination (0,1) may indicate that the earthquake sensor device has detected a primary wave. A bit combination (0,0) may indicate that the earthquake sensor device has detected a secondary wave or that an internal failure has occurred. By using more bits it is possible to indicate more states of the earthquake sensor device to the elevator control system.
  • any of the above disclosed signal transmission techniques or other appropriate signal transmission techniques may be used to transmit a reset signal from the elevator control system to the earthquake sensor device after detecting the secondary wave signal from the earthquake sensor device.
  • the earthquake sensor device and the elevator control system disclosed above comprise the necessary means for implementing the functions disclosed above.
  • These means may comprise, for example, at least one processor, at least one memory for storing information which may comprise a computer program or programs to be executed by the at least one processor, and a signaling interface or interfaces to enable communication between the earthquake sensor device and the elevator control system.
  • the signaling interface may be a wired interface or wireless communication interface.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP13174335.3A 2013-06-28 2013-06-28 Erdbebensensorgerät von einer Aufzugsvorrichtung Withdrawn EP2818441A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13174335.3A EP2818441A1 (de) 2013-06-28 2013-06-28 Erdbebensensorgerät von einer Aufzugsvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13174335.3A EP2818441A1 (de) 2013-06-28 2013-06-28 Erdbebensensorgerät von einer Aufzugsvorrichtung

Publications (1)

Publication Number Publication Date
EP2818441A1 true EP2818441A1 (de) 2014-12-31

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EP13174335.3A Withdrawn EP2818441A1 (de) 2013-06-28 2013-06-28 Erdbebensensorgerät von einer Aufzugsvorrichtung

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245411A (zh) * 2015-11-18 2016-01-13 中景恒基云端物联网科技成都有限公司 一种用于电梯井道物联网设备无线通信故障的处理方法
JP2016205986A (ja) * 2015-04-22 2016-12-08 三菱電機株式会社 地震感知装置およびエレベータ装置
WO2018134894A1 (ja) * 2017-01-17 2018-07-26 三菱電機ビルテクノサービス株式会社 エレベーター用の地震感知器
WO2018134891A1 (ja) * 2017-01-17 2018-07-26 三菱電機ビルテクノサービス株式会社 エレベーターの自動復旧システム
CN109573775A (zh) * 2018-05-17 2019-04-05 浙江威特电梯有限公司 一种地震防护电梯
WO2019193653A1 (ja) * 2018-04-03 2019-10-10 三菱電機ビルテクノサービス株式会社 診断運転の可否のリセット漏れを防止するエレベーターの制御盤およびエレベーターシステム
JP2020079158A (ja) * 2018-11-14 2020-05-28 株式会社日立製作所 エレベーター制御システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709788A (en) * 1985-06-28 1987-12-01 Kabushiki Kaisha Toshiba Group control apparatus for elevators
JP2010222139A (ja) * 2009-03-25 2010-10-07 Mitsubishi Electric Corp エレベータの運転装置
CN101659364B (zh) * 2009-08-07 2011-07-06 上海新时达电气股份有限公司 模拟电梯井道状态的方法
WO2011161790A1 (ja) * 2010-06-24 2011-12-29 三菱電機株式会社 エレベーターの制御システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709788A (en) * 1985-06-28 1987-12-01 Kabushiki Kaisha Toshiba Group control apparatus for elevators
JP2010222139A (ja) * 2009-03-25 2010-10-07 Mitsubishi Electric Corp エレベータの運転装置
CN101659364B (zh) * 2009-08-07 2011-07-06 上海新时达电气股份有限公司 模拟电梯井道状态的方法
WO2011161790A1 (ja) * 2010-06-24 2011-12-29 三菱電機株式会社 エレベーターの制御システム

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016205986A (ja) * 2015-04-22 2016-12-08 三菱電機株式会社 地震感知装置およびエレベータ装置
CN105245411A (zh) * 2015-11-18 2016-01-13 中景恒基云端物联网科技成都有限公司 一种用于电梯井道物联网设备无线通信故障的处理方法
CN105245411B (zh) * 2015-11-18 2018-05-11 中景恒基云端物联网科技成都有限公司 一种用于电梯井道物联网设备无线通信故障的处理方法
WO2018134894A1 (ja) * 2017-01-17 2018-07-26 三菱電機ビルテクノサービス株式会社 エレベーター用の地震感知器
WO2018134891A1 (ja) * 2017-01-17 2018-07-26 三菱電機ビルテクノサービス株式会社 エレベーターの自動復旧システム
JPWO2018134894A1 (ja) * 2017-01-17 2019-03-22 三菱電機ビルテクノサービス株式会社 エレベーター用の地震感知器
CN109863106A (zh) * 2017-01-17 2019-06-07 三菱电机大楼技术服务株式会社 电梯的自动恢复系统
CN109863106B (zh) * 2017-01-17 2020-09-18 三菱电机大楼技术服务株式会社 电梯的自动恢复系统
WO2019193653A1 (ja) * 2018-04-03 2019-10-10 三菱電機ビルテクノサービス株式会社 診断運転の可否のリセット漏れを防止するエレベーターの制御盤およびエレベーターシステム
CN111479767A (zh) * 2018-04-03 2020-07-31 三菱电机大楼技术服务株式会社 防止遗漏可否诊断运转的重置的电梯的控制盘以及电梯系统
CN109573775A (zh) * 2018-05-17 2019-04-05 浙江威特电梯有限公司 一种地震防护电梯
JP2020079158A (ja) * 2018-11-14 2020-05-28 株式会社日立製作所 エレベーター制御システム

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