Title:
METHOD FOR PREDICTIVE MAINTENANCE AND HIGH EFFICIENCY OPERATION THROUGH ELEVATOR ANALYSIS
Document Type and Number:
WIPO Patent Application WO/2019/093715
Kind Code:
A1
Abstract:
The present invention relates to a method for predictive maintenance and high efficiency operation through elevator analysis, the method comprising: a predictive maintenance step (S10) of allowing an elevator operation unit to collect operation information of the operation unit in a normal state and operation information of the operation unit, which appears before a failure occurs, detect an abnormal symptom of the operation unit operating in real time, on the basis of the collected operation information, and induce stable predictive maintenance of the elevator operation unit; and a high efficiency operation step (S20) of analyzing the operation information of the elevator operation unit in real time on the basis of the operation information of the operation unit in the normal state, which is collected in the predictive maintenance step (S10), to extract the operation information of an elevator, and controlling a door-closing time for the elevator on the basis of the extracted operation information so as to induce efficient operation of the elevator. The present invention comprises not only: performing classification into an ascending condition and a descending condition of an elevator, and individually collecting operation information (change information of a current value according to time) of an operation unit in a normal state and operation information of the operation unit, which appears before a failure occurs; setting a threshold level on the basis of the collected information; comparing the operation information of the operation unit, which is collected in real time, with the set threshold level to detect an abnormal symptom of the operation unit in real time; and then performing stable predictive maintenance of the elevator operation unit so as to enable a safety accident of the elevator due to a failure of the elevator operation unit to be efficiently prevented, but also: analyzing the operation information of the operation unit in real time to extract the operation information of the elevator; digitizing (statisticalizing) a floor-specific operation frequency of the elevator, a time slot, and the number of passengers on the basis of the extracted operation information; and controlling a floor-specific door-closing time for the elevator on the basis of the digitized information, so as to induce economically efficient operation of the elevator. Further, according to the present invention, an operation unit: divides current values (operation information) varying depending on time of the operation unit, which are collected due to characteristics applied to an elevator, into an unlocking period, a starting period, a constant speed period, a stopping period, and a lock performing period; collects the divided current values; and compares operation information of the operation unit, which is collected in real time, with an upper limit value and a lower limit value of a threshold level corresponding to each period to detect an abnormal symptom of the operation unit, so that the operation unit can easily detect a part (device) suspected of having an abnormal symptom, and therefore not only the elevator operation unit can perform precise predictive maintenance but also an excellent reliability with respect to a detection result of the elevator operation unit can be ensured. In addition, according to the present invention, it is possible to clearly distribute electricity rates for elevator operation in proportion to a digitized floor-specific operation frequency of an elevator, so that a very reasonable rate settlement can be achieved.
Inventors:
LEE YOUNG KYU (KR)
Application Number:
PCT/KR2018/013169
Publication Date:
May 16, 2019
Filing Date:
November 01, 2018
Export Citation:
Assignee:
ITS CO LTD (KR)
LEE YOUNG KYU (KR)
LEE YOUNG KYU (KR)
International Classes:
B66B1/30; B66B1/34
Foreign References:
| JP2006502933A | 2006-01-26 | |||
| KR970026881A | 1997-06-24 | |||
| KR20000020216A | 2000-04-15 | |||
| KR100365325B1 | 2002-12-18 | |||
| KR101387305B1 | 2014-04-18 |
Attorney, Agent or Firm:
HWANG, Euy Man (KR)
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