SG186731A1 - Elevator system - Google Patents

Elevator system


Publication number
SG186731A1 SG2012092425A SG2012092425A SG186731A1 SG 186731 A1 SG186731 A1 SG 186731A1 SG 2012092425 A SG2012092425 A SG 2012092425A SG 2012092425 A SG2012092425 A SG 2012092425A SG 186731 A1 SG186731 A1 SG 186731A1
Prior art keywords
Prior art date
Application number
Toshifumi Yoshikawa
Masaya Furuhashi
Hironori Fukata
Kiyoshi Okamura
Shinsuke Inoue
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to PCT/JP2010/004074 priority Critical patent/WO2011158301A1/en
Publication of SG186731A1 publication Critical patent/SG186731A1/en



    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0018Devices monitoring the operating condition of the elevator system
    • B66B5/0031Devices monitoring the operating condition of the elevator system for safety reasons


In order to reliably detect open-door movement at a shorter movement distance (at an earlier point in time),5 thereby enhancing safety, and maintaining operational efficiency, an elevator system equipped with an unintended car movement protection, which assesses open-door movement and stops the car if the car moves up or down relative to the landing floor with the car doors and/or landing doors10 being opened, and is further provided with: a car door switch (43) that detects when car doors are opened and a landing door switch (41) that detects when landing doors are opened, a detection device (21) that detects thevelocity and movement distance of the car, a position15 sensor (30) that detects the reference floor position at each storey, and a safety controller (1) that determinesan open-door movement abnormality on the basis of the results detected by the detection device (21) and the position sensor (30), using a car-speed abnormality20 determination threshold value that is defined to the car position.
SG2012092425A 2010-06-18 2010-06-18 Elevator system SG186731A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/004074 WO2011158301A1 (en) 2010-06-18 2010-06-18 Elevator system

Publications (1)

Publication Number Publication Date
SG186731A1 true SG186731A1 (en) 2013-02-28



Family Applications (1)

Application Number Title Priority Date Filing Date
SG2012092425A SG186731A1 (en) 2010-06-18 2010-06-18 Elevator system

Country Status (5)

Country Link
EP (1) EP2583928B1 (en)
JP (1) JP5516729B2 (en)
CN (1) CN102947210B (en)
SG (1) SG186731A1 (en)
WO (1) WO2011158301A1 (en)

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JP6072625B2 (en) * 2013-06-21 2017-02-01 三菱電機株式会社 Elevator safety device and elevator control method
WO2015004776A1 (en) * 2013-07-11 2015-01-15 三菱電機株式会社 Elevator system
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JP6187978B2 (en) * 2014-06-20 2017-08-30 株式会社日立ビルシステム Elevator control device
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EP3337745B1 (en) * 2015-08-19 2020-02-05 Otis Elevator Company Elevator control system and method of operating an elevator system
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CN106800225B (en) * 2017-02-23 2019-02-05 深圳市海浦蒙特科技有限公司 Elevator returns flatting method
EP3444214A1 (en) * 2017-08-14 2019-02-20 Otis Elevator Company Elevator safety and control systems
WO2019130407A1 (en) * 2017-12-26 2019-07-04 株式会社日立製作所 Elevator and method for protecting against elevator moving with door open
CN110065861B (en) * 2018-01-24 2020-12-25 日立楼宇技术(广州)有限公司 Method, device and equipment for detecting accidental movement of elevator car and storage medium
US20190382239A1 (en) * 2018-06-15 2019-12-19 Otis Elevator Company Variable thresholds for an elevator system
CN109132771B (en) * 2018-10-25 2020-06-26 日立楼宇技术(广州)有限公司 Elevator car protection system and method
US20220017331A1 (en) * 2018-12-14 2022-01-20 Hitachi, Ltd. Elevator control apparatus
WO2020124547A1 (en) * 2018-12-21 2020-06-25 深圳技术大学(筹) Method and apparatus for monitoring pit and roof hitting failures of elevator
CN109650230B (en) * 2018-12-29 2020-12-29 日立电梯(中国)有限公司 Elevator traction system and control method thereof
EP3744672A1 (en) * 2019-05-31 2020-12-02 Cedes AG Limit curve control for elevators
CN110697528A (en) * 2019-09-10 2020-01-17 宁夏电通物联网科技股份有限公司 Detection device for detecting opening and closing states of car door based on diffuse reflection, elevator and detection method
CN110526054B (en) * 2019-09-17 2022-04-12 日立楼宇技术(广州)有限公司 Elevator passenger detection method, controller, system and storage medium
CN111056409A (en) * 2020-01-08 2020-04-24 广东博智林机器人有限公司 Lifting device and control method for preventing lift car from moving accidentally
EP3878788A1 (en) * 2020-03-09 2021-09-15 Otis Elevator Company Elevator safety systems
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Also Published As

Publication number Publication date
JP5516729B2 (en) 2014-06-11
EP2583928A1 (en) 2013-04-24
WO2011158301A1 (en) 2011-12-22
JPWO2011158301A1 (en) 2013-08-15
EP2583928A4 (en) 2017-11-08
CN102947210A (en) 2013-02-27
EP2583928B1 (en) 2021-02-24
CN102947210B (en) 2015-05-06

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