US3851733A - Elevator system - Google Patents

Elevator system Download PDF

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Publication number
US3851733A
US3851733A US00340617A US34061773A US3851733A US 3851733 A US3851733 A US 3851733A US 00340617 A US00340617 A US 00340617A US 34061773 A US34061773 A US 34061773A US 3851733 A US3851733 A US 3851733A
Authority
US
United States
Prior art keywords
call
car
floor
calls
elevator
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.)
Expired - Lifetime
Application number
US00340617A
Other languages
English (en)
Inventor
M Sackin
D Edison
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US00340617A priority Critical patent/US3851733A/en
Priority to CA194,579A priority patent/CA995371A/en
Priority to BR1818/74A priority patent/BR7401818A/pt
Priority to ES424160A priority patent/ES424160A1/es
Priority to AU66520/74A priority patent/AU488507B2/en
Priority to DE2411861A priority patent/DE2411861C2/de
Priority to GB1098274A priority patent/GB1468063A/en
Priority to FR7408439A priority patent/FR2221383B1/fr
Priority to BE141939A priority patent/BE812215A/xx
Priority to NL7403270A priority patent/NL7403270A/xx
Priority to JP49027831A priority patent/JPS5848462B2/ja
Priority to IT20884/74A priority patent/IT1019601B/it
Application granted granted Critical
Publication of US3851733A publication Critical patent/US3851733A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
    • B66B1/18—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of several cars or cages

Definitions

  • ABSTRACT A new and improved elevator system, and method of [22] Flled' 1973 allocating calls and assigning cars in an elevator sys- [21] Appl. No.: 340,617 tern to serve calls for elevator service.
  • a floor call When a floor call is received, it is processed by adding it to the assignment register of at least one of the elevator cars, or by Creating a demand Signal relative to the can.
  • Field 187/29 floor calls in the system are reprocessed in response to certain conditions, to determine if there is a closer [56] References Cited suitable car to each of the floor calls than the car which presently has the call in its assignment register.
  • the invention relates in general to elevator systems and more specifically to elevator systems in which a plurality of elevator cars are controlled by a central dispatching control apparatus.
  • elevator systems which include a central dispatcher or system processor for controlling the dispatching of a plurality of elevator cars in response to floor calls, include special strategy for down calls.
  • the floors are divided into zones having one or more floors per zone, and a down floor call is assigned to all elevator cars having a position, service and travel direction which is suitable for the call location.
  • the number of zones registering down calls are counted, and the number of elevator cars set for down travel which are in the process of serving down floor calls are also counted.
  • a demand is created to which available or non-busy cars are assigned.
  • the calls are deleted from the lowest of the cars and this car is made available. Any floor calls which it may have in its assignment register are givento the other cars.
  • the present invention is a new and improved elevator system, and method of dispatching cars to serve floor calls for an elevator system, which provides new and improved strategy for allocating floor calls, and assigning cars to floor calls, including an improved arrangement and method for handling down calls.
  • a new floor call is allocated to the assignment register of at least one suitably conditioned car which is already in the process of serving calls.
  • a suitably conditioned car is one which is located relative to the call, and with a travel and service direction such that it will be able to service the call in question as it continues its present course through the building. Failing to find such a car, a demand signal is created relative to the call and a non-busy car, i.e., a car which is in service but which is not presently in the process of serving a call for elevator service, is assigned to the demand call.
  • the processed floor calls are reprocessed when an event occurs which indicates the possible need to reallocate oneor more of the floor calls.
  • a floor call is reprocessed, it is determined if there is a closer suitable car to the call floor than the car, or cars which presently have the call in their associated assignment registers.
  • the cars are successively compared relative to a specific call and each time a closer suitable car is found than a previous suitable car, the call is deleted from the assignment register of a less suitable car. When all cars have been compared, the call is added to the assignment register of the closest suitable car found. Thus, after reprocessing, only one car has any one floor call in its assignment register.
  • the invention results in the call registers of the cars accurately representing the present traffic condition.
  • the assignment registers of the cars are not cluttered with calls which they may not answer because another closer car with the same call will reach the call floor first.
  • the invention thus returns the elevator cars to the available status much quicker, preventing unnecessary running through th building by cars which will not serve the call they are running for. The quicker return to the available status also reduces the waiting time required to assign available cars to demand calls.
  • the invention eliminates the prior art problem of deciding which car to remove from running status and to make available when the number of down running cars exceeds the number of down calls.
  • arbitrarily deleting the calls from the assignment register of the lowest car and reallocating these calls to the remaining running cars may not always be the best strategy.
  • the best strategy is always implemented, as the closest car to a call always has the call assignment.
  • the removal of a floor call from the assignment register of a car which is not as close to the call floor as another car is subject to the condition that the less suitable car has no registered car calls. 1f the less suitable car has one or more car calls, removing the floor call from its assignment register will not hasten its return to availability status, as the car will continue to be a busy car until it has served its car call.
  • the floor call is not deleted from the assignment register of a car which has a car call, since it is a suitably conditioned car for the floor call, and the chance is present that the closer car may for some reason be delayed, allowing the less suitable car to answer the call.
  • the less suitable car retains the floor call in its assignment register until the closer car answers the call, or the car call is served, or the less suitable car answers the floor call.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
US00340617A 1973-03-12 1973-03-12 Elevator system Expired - Lifetime US3851733A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US00340617A US3851733A (en) 1973-03-12 1973-03-12 Elevator system
BR1818/74A BR7401818A (pt) 1973-03-12 1974-03-11 Processo para a locacao de chamadas em andares e processamento para elevadores
ES424160A ES424160A1 (es) 1973-03-12 1974-03-11 Mejoras introducidas en un metodo de asignar llamadas de piso y en un sistema de elevador para funcionamiento segun dicho metodo.
AU66520/74A AU488507B2 (en) 1973-03-12 1974-03-11 Improvements in or relating to elevator system
CA194,579A CA995371A (en) 1973-03-12 1974-03-11 Elevator system
GB1098274A GB1468063A (en) 1973-03-12 1974-03-12 Elevator system and method
DE2411861A DE2411861C2 (de) 1973-03-12 1974-03-12 Verfahren zum Verteilen von Stockwerksrufen auf eine Anzahl von Aufzugskabinen
FR7408439A FR2221383B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-03-12 1974-03-12
BE141939A BE812215A (fr) 1973-03-12 1974-03-12 Systeme d'ascenseur
NL7403270A NL7403270A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-03-12 1974-03-12
JP49027831A JPS5848462B2 (ja) 1973-03-12 1974-03-12 エレベ−タノ セイギヨホウホウ ナラビニ ソウチ
IT20884/74A IT1019601B (it) 1973-03-12 1974-04-08 Dispositivo particularmente per il controllo di un impianto di ascensori

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00340617A US3851733A (en) 1973-03-12 1973-03-12 Elevator system

Publications (1)

Publication Number Publication Date
US3851733A true US3851733A (en) 1974-12-03

Family

ID=23334202

Family Applications (1)

Application Number Title Priority Date Filing Date
US00340617A Expired - Lifetime US3851733A (en) 1973-03-12 1973-03-12 Elevator system

Country Status (11)

Country Link
US (1) US3851733A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5848462B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE812215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7401818A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA995371A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2411861C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES424160A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2221383B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1468063A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1019601B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7403270A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030571A (en) * 1974-04-22 1977-06-21 Hitachi, Ltd. Elevator control system
US4043429A (en) * 1975-01-06 1977-08-23 Hitachi, Ltd. Elevator car group control system
US4046228A (en) * 1975-05-05 1977-09-06 Westinghouse Electric Corporation Elevator system
US4063620A (en) * 1976-07-09 1977-12-20 Westinghouse Electric Corporation Elevator system
US4149613A (en) * 1975-11-04 1979-04-17 Hitachi, Ltd. Elevator control system
US4166518A (en) * 1976-07-30 1979-09-04 Hitachi, Ltd. Elevator control system
WO1981001549A1 (en) * 1979-12-03 1981-06-11 Otis Elevator Co Dynamically reevaluated elevator call assignments
US5357064A (en) * 1992-12-21 1994-10-18 Otis Elevator Company Elevator hall call cross-cancellation device
US20130001019A1 (en) * 2010-05-18 2013-01-03 Mitsubishi Electric Corporation Elevator control device
CN106414293A (zh) * 2014-06-16 2017-02-15 奥的斯电梯公司 包括轿厢定位监测系统的目标调度覆盖
US20210188592A1 (en) * 2017-12-21 2021-06-24 Inventio Ag Method and elevator controller for controlling an elevator group having a plurality of elevators on the basis of destination calls
US12319538B2 (en) 2020-09-28 2025-06-03 Appana Industries LLC Systems and methods for dispatching elevators

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625429B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-10-28 1981-06-12
DE112009002239T5 (de) 2008-09-19 2011-07-14 Mitsubishi Electric Corp. Fahrstuhl-Verwaltungssystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443668A (en) * 1965-10-08 1969-05-13 Reliance Electric & Eng Co Plural car elevator system for developing hall call assignments between individual cars and registered hall calls
US3511343A (en) * 1966-07-15 1970-05-12 Reliance Electric & Eng Co Elevator control
US3587786A (en) * 1969-11-18 1971-06-28 Westinghouse Electric Corp Zone demand elevator system
US3589473A (en) * 1968-12-17 1971-06-29 Westinghouse Electric Corp Pulse-supervised multivehicle transportation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US450231A (en) * 1891-04-14 Kettle-cover
US3450231A (en) * 1967-01-20 1969-06-17 Reliance Electric & Eng Co Group elevator control having car call reset of advance hall call assignment
DE2112608A1 (de) * 1971-03-16 1972-09-28 Westinghouse Electric Corp Impulsgesteuerte Aufzugsanlage
JPS4948045A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-09-11 1974-05-09

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443668A (en) * 1965-10-08 1969-05-13 Reliance Electric & Eng Co Plural car elevator system for developing hall call assignments between individual cars and registered hall calls
US3511343A (en) * 1966-07-15 1970-05-12 Reliance Electric & Eng Co Elevator control
US3589473A (en) * 1968-12-17 1971-06-29 Westinghouse Electric Corp Pulse-supervised multivehicle transportation
US3587786A (en) * 1969-11-18 1971-06-28 Westinghouse Electric Corp Zone demand elevator system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030571A (en) * 1974-04-22 1977-06-21 Hitachi, Ltd. Elevator control system
US4043429A (en) * 1975-01-06 1977-08-23 Hitachi, Ltd. Elevator car group control system
US4046228A (en) * 1975-05-05 1977-09-06 Westinghouse Electric Corporation Elevator system
US4149613A (en) * 1975-11-04 1979-04-17 Hitachi, Ltd. Elevator control system
US4063620A (en) * 1976-07-09 1977-12-20 Westinghouse Electric Corporation Elevator system
US4166518A (en) * 1976-07-30 1979-09-04 Hitachi, Ltd. Elevator control system
WO1981001549A1 (en) * 1979-12-03 1981-06-11 Otis Elevator Co Dynamically reevaluated elevator call assignments
US4323142A (en) * 1979-12-03 1982-04-06 Otis Elevator Company Dynamically reevaluated elevator call assignments
US5357064A (en) * 1992-12-21 1994-10-18 Otis Elevator Company Elevator hall call cross-cancellation device
US20130001019A1 (en) * 2010-05-18 2013-01-03 Mitsubishi Electric Corporation Elevator control device
US9126808B2 (en) * 2010-05-18 2015-09-08 Mitsubishi Electric Corporation Elevator control device
CN106414293A (zh) * 2014-06-16 2017-02-15 奥的斯电梯公司 包括轿厢定位监测系统的目标调度覆盖
US20170121147A1 (en) * 2014-06-16 2017-05-04 Otis Elevator Company Destination dispatch overlay including car positioning monitoring system
CN106414293B (zh) * 2014-06-16 2019-11-19 奥的斯电梯公司 包括轿厢定位监测系统的目标调度覆盖
US20210188592A1 (en) * 2017-12-21 2021-06-24 Inventio Ag Method and elevator controller for controlling an elevator group having a plurality of elevators on the basis of destination calls
US12319538B2 (en) 2020-09-28 2025-06-03 Appana Industries LLC Systems and methods for dispatching elevators

Also Published As

Publication number Publication date
DE2411861C2 (de) 1985-02-28
GB1468063A (en) 1977-03-23
ES424160A1 (es) 1976-11-01
IT1019601B (it) 1977-11-30
JPS5848462B2 (ja) 1983-10-28
DE2411861A1 (de) 1974-09-19
AU6652074A (en) 1975-09-11
FR2221383A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-11
BR7401818A (pt) 1975-11-11
JPS5047350A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-04-26
CA995371A (en) 1976-08-17
FR2221383B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-06-23
BE812215A (fr) 1974-09-12
NL7403270A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-09-16

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