US5054585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator control apparatus
Assignee: Mitsubishi Electric Corp
•
Filing: 1989-10-03
•
Granted: 1991-10-08
•
Expires: 2009-10-03
Abstract
Abstract An elevator control apparatus for moving free elevator cages to optimal stand-by floors determined according to a plurality of fuzzy rules of if-then format. A learning function is employed for altering the parameters of the fuzzy rules based on statistics of past traffic patterns over a pre-determined time period. Free elevator cages are detected by an operation control element and then moved to optimal stand-by floors. A stand-by control element responsive to fuzzy rules generates a signal directed to the operation control element for initiating movement of the free elevator cages.
Inventors
- 👤 Masaaki Amano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:31
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/24; B66B1/2408; B66B1/2458; B66B2201/00; B66B2201/20; B66B2201/243; Y; Y10; Y10S; Y10S706/00; Y10S706/90
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
An elevator control apparatus for group supervising a plurality of elevator cages comprising: operation control means for detecting stand-by free elevator cage in a pause state and suitably moving the free cage, a fuzzy rule base for storing a plurality of fuzzy rules of IF-THEN format written with conditions necessary to move the free cage and executing procedure; learning means for altering the parameters of said fuzzy rules on the basis of information from said operation control means; and stand-by control means for determining an optimum stand-by floor having an evaluation arithmetic unit operative to calculate fuzzy amounts of the fuzzy rules for the stand-by state of said free cage and to select a fuzzy rule that the fuzzy amount exceeds a maximum and lower limiting value, thus generating a signal directed to said operation control means and responsive to said selected fuzzy rule, for moving the free cages to the optimum stand-by floor,
Claim 2
Dependent Claim
154 words
An elevator control apparatus for group supervising a plurality of elevator cages comprising: operation control means for detecting stand-by free elevator cage in a pause state and suitably moving the free cage, a fuzzy rule base for storing a plurality of fuzzy rules of IF-THEN format written with conditions necessary to move the free cage and executing procedure; learning means for altering the parameters of said fuzzy rules on the basis of information from said operation control means; and stand-by control means for determining an optimum stand-by floor having an evaluation arithmetic unit operative to calculate fuzzy amounts of the fuzzy rules for the stand-by state of said free cage and to select a fuzzy rule that the fuzzy amount exceeds a maximum and lower limiting value, thus generating a signal directed to said operation control means and responsive to said selected fuzzy rule, for moving the free cages to the optimum stand-by floor,
Claim 3
Dependent Claim
33 words
An elevator control apparatus according to claim 1, wherein said stand-by control means generates a command signal to move said free cages when said free cages are concentrated within a predetermined floor difference.
Claim 4
Dependent Claim
34 words
An elevator apparatus according to claim 1, wherein said stand-by control means includes a stand-by floor selector, responsive to said fuzzy amount, for selecting the optimal stand-by floor in conformance with said fuzzy rules.
References Cited (Backward Citations)
US4802082A
Cited
US4672531A
Cited
JPS60209475A
Cited
US4669579A
Cited
JPS6387484A
Cited
US4760896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |