GB1356856A - Elevator control system - Google Patents
Elevator control systemInfo
- Publication number
- GB1356856A GB1356856A GB3045571A GB3045571A GB1356856A GB 1356856 A GB1356856 A GB 1356856A GB 3045571 A GB3045571 A GB 3045571A GB 3045571 A GB3045571 A GB 3045571A GB 1356856 A GB1356856 A GB 1356856A
- Authority
- GB
- United Kingdom
- Prior art keywords
- car
- cars
- succeeding
- calls
- hall
- 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
Links
- 238000000034 method Methods 0.000 abstract 3
- IKCLCGXPQILATA-UHFFFAOYSA-N 2-chlorobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1Cl IKCLCGXPQILATA-UHFFFAOYSA-N 0.000 abstract 1
- 230000002596 correlated effect Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Traffic Control Systems (AREA)
Abstract
1356856 Multi-car control system HITACHI Ltd 29 June 1971 [1 July 1970 (2) 10 July 1970 20 July 1970] 30455/71 Heading B8L In a three car elevator system, serving ten floors, the cars being regarded as operating in a loop 1U-9U-10D-2D-1U, the car motions are correlated in dependence upon the intervals, as defined below, between them, according to one of the following methods: (i) the cars are considered in pairs, and the succeeding car is caused to by-pass hall calls when the interval between them is greater than a predetermined value. (ii) All three cars are considered and an intermediate car is caused to by-pass hall calls if the interval between it and the preceding car is greater than the interval between it and the succeeding car. When the interval to the preceding car is less than that to the succeeding car, one or other of the other cars will by-pass hall calls. The interval Tab between cars A, B for example, car B succeeding A, is defined by: Tab = K, Dab + K 2 Cba, where k 1 , k 2 are constants, Dab is the physical distance between points ahead of cars A, B respectively, by an amount dependent on their respective operating speeds, and Cba is the number of hall and car calls allotted to car B, for floors between it, and car A. Detecting car positions, Fig. 4 (not shown).- Depending on the position of, for example car C in the shaft, switches (S1UC .. S2DC) selectively close, selectively connecting resistors (R1UC ... R2DC) of scaled magnitudes into an operational amplifier circuit, whose outputs for each car, are two position signals C-a, C-b, of equal magnitude and opposite sign. Determining the spaoial distance for example Dab, and identifying the succeeding car for car A, Fig. 6 (not shown).-Operational amplifiers (OP3A, OP4A) output separation signals of car A relative to cars B or C respectively, which if positive, pass gate (BL1A) (BL2A) to diodes (D1A, D3A), and, if negative, indicating that the cars B or C are ahead of car A, are subtracted, using amplifiers (OPSA, OP6A) from a constant potential to convert the signal into a succeeding one, thus regarding any car ahead, as being behind on the loop. The least of the distance signals appears at diode (D5A), and the circuit utilizing comparators (CP1A-CP4A) and or gates (OK1A, OR2A) identifies the succeeding car. Determining the number of calls Cba between cars B and A, Fig. 8 (not shown).-All car and hall calls for the car succeeding A are received at AND gates (A1UA3-A2DA3), and, in dependence on the position signals of cars A, B, C, fed to the OR and INHIBIT gates, only those AND gates between car A and the succeeding car are enabled, producing a voltage across rA proportional to the number of hall and car calls for the succeeding car, between it and car A. The signals Cba and Dab are combined in an adding circuit, Fig. 9 (not shown) which outputs control signals (SHA-A, -B-C) to control the response of cars to call signals in accordance with method (ii) above. Allocation of hall calls.-A hall call register (HCR), Fig. 10 (not shown) stores hall calls, the calls being passed singly, via order selector (STS, Figs. 2, 10) via an analogue circuit, Fig. 13 (not shown), whose output corresponds to the specific hall call to logic circuits, Figs. 12, 14 and 15 (not shown), which respectively, determine the spacial distances, number of calls, and add them, between the specific hall call and each of the cars. The least of the quantities is selected out to identify the car which will respond to the call, a display (RD), Fig. 2 (not shown) being given at the floor. Performance of method (i), Fig. 16 (not shown).-The interval signal for any one car is passed to a comparator (CMA), where it is composed with a given predetermined interval (TS).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45056938A JPS5115297B1 (en) | 1970-07-01 | 1970-07-01 | |
JP45056939A JPS5115298B1 (en) | 1970-07-01 | 1970-07-01 | |
JP45059918A JPS5115299B1 (en) | 1970-07-10 | 1970-07-10 | |
JP45062847A JPS5115300B1 (en) | 1970-07-20 | 1970-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1356856A true GB1356856A (en) | 1974-06-19 |
Family
ID=27463426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3045571A Expired GB1356856A (en) | 1970-07-01 | 1971-06-29 | Elevator control system |
Country Status (3)
Country | Link |
---|---|
US (1) | US3837436A (en) |
CA (1) | CA935580A (en) |
GB (1) | GB1356856A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313571A (en) * | 1991-04-12 | 1992-11-05 | Mitsubishi Electric Corp | Elevator control method |
EP0623545B1 (en) * | 1993-05-05 | 1997-10-01 | Otis Elevator Company | Measurement and reduction of bunching in elevator dispatching with multiple term objection function |
CN107074481B (en) * | 2014-04-28 | 2020-02-14 | 通力股份公司 | Destination call control for different traffic types |
CN114890257A (en) * | 2022-03-31 | 2022-08-12 | 厦门立林科技有限公司 | Multi-terminal linkage elevator control method, system, device and storage medium |
Family Cites Families (3)
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 |
US3519106A (en) * | 1966-12-30 | 1970-07-07 | Westinghouse Electric Corp | Pulse-supervised transportation systems |
US3614997A (en) * | 1969-12-16 | 1971-10-26 | Otis Elevator Co | Plural car conveyor system controlled by performance times between cars |
-
1971
- 1971-06-25 US US00156866A patent/US3837436A/en not_active Expired - Lifetime
- 1971-06-29 GB GB3045571A patent/GB1356856A/en not_active Expired
- 1971-06-30 CA CA117093A patent/CA935580A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3837436A (en) | 1974-09-24 |
CA935580A (en) | 1973-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |