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Patent Agency Ranking
公开(公告)号：US10399821B2
公开(公告)日：2019-09-03
申请号：US15509876
申请日：2015-09-09
Applicant: Otis Elevator Company
Inventor： Randall Keith Roberts
Abstract: An elevator system (100) includes an elevator drive system (101) including a tension member (103) supporting an elevator car (106) under tension and a monitoring system (102). The monitoring system includes a vibration sensor (111) for detecting vibration of at least one of the tension member and the elevator car and an analysis unit (112) for determining a level of wear and life of the tension member based on the vibration of the tension member detected by the vibration sensor.
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公开(公告)号：US20190202658A1
公开(公告)日：2019-07-04
申请号：US16295327
申请日：2019-03-07
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
Abstract: A method includes determining that an elevator car is arriving at a landing at which re-leveling is anticipated; upon the elevator car arriving at the landing at which re-leveling is anticipated, initiating the at least one of a brake cycling operation and a power cycling operation to reduce elevator car sag at the landing; monitoring transfer of weight to or from the elevator car at the landing over a period of time; terminating the at least one of the brake cycling operation and the power cycling operation upon at least one of (i) the transfer of weight to or from the elevator car at the landing over the period of time being less than a threshold and (ii) the elevator car sag at the landing meeting a sag threshold.
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公开(公告)号：US10118802B2
公开(公告)日：2018-11-06
申请号：US15516708
申请日：2015-10-28
Applicant: Otis Elevator Company
Inventor： Soumitra Borthakur , Randall Keith Roberts
Abstract: A structural health monitoring system is provided. The system includes a drive system having a first drive member a second drive member 38 operationally connected to the first drive member, and a tension member 39 operationally connecting the first drive member to the second drive member. At least one sensor 50 is configured to monitor a characteristic of at least one of the first drive member and the second drive member. A processor 54, in communication with the at least one sensor, is configured to determine if the structural health of the tension member is compromised based on the monitored characteristic. The processor is further configured to perform a safety response action when the structural health of the tension member is determined to be compromised.
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公开(公告)号：US20170174472A1
公开(公告)日：2017-06-22
申请号：US15116120
申请日：2014-02-06
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
Abstract: Embodiments are directed to determining that an elevator car of an elevator system is approaching a landing, obtaining, by a controller, a value for at least one parameter associated with the elevator system based on the determination that the elevator car is approaching the landing, determining that the elevator car arrives at the landing within a threshold distance, determining, by the controller, when to engage in at least one of a brake cycling operation and a power cycling operation based on the value for the at least one parameter and based on determining that the elevator car arrives at the landing within the threshold distance, and initiating the at least one of a brake cycling operation and a power cycling operation at a time corresponding to the determination of when to engage in the at least one of a brake cycling operation and a power cycling operation.
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公开(公告)号：US20150166304A1
公开(公告)日：2015-06-18
申请号：US14405654
申请日：2012-06-04
Applicant: OTIS ELEVATOR COMPANY
Inventor： Randall Keith Roberts , George Scott Copeland , Theresa M. Christy
CPC classification number: B66B5/022 , B66B1/28 , B66B5/0031
Abstract: A method of operating an elevator system includes detecting a building sway which causes sway of elevator suspension or compensation members. An elevator control system is switched into a building sway mode, and operation of one or more elevator cars of the elevator system is changed via the building sway mode to mitigate vibratory effects of the building sway on the one or more elevator cars.
Abstract translation: 操作电梯系统的方法包括检测导致电梯悬架或补偿构件摇摆的建筑物摇摆。 电梯控制系统切换到建筑物摇摆模式，并且通过建筑物摇摆模式改变电梯系统中的一个或多个电梯轿厢的操作，以减轻一个或多个电梯轿厢上的建筑物摇摆的振动效应。
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