Abstract:
Elevator swing cars 37 have doors 50 opening into a low rise lobby service corridor 31 and doors 51 opening into a medium rise lobby service corridor 32 with car panels 52 associated with the low rise group of floors (such as floors 1-13) and car panels 53 associated with floors of the medium rise group of floors (such as floors 14-22). Each swing car is assigned (Fig. 12) to either one of the two groups which it can serve at the conclusion of each run, as the car approaches the lobby, thereby operating an enunciator lantern 56 in the low rise corridor 31 or an enunciator lantern 57 in the medium rise corridor 32, depending upon which rise the elevator has been assigned to for service in the next following run. Similar swing cars 39 relate to the medium rise (32) and the high rise (33). A variety of alternatives and features are disclosed.
Abstract:
An elevator control system employing a micro-processor-based group controller ( Fig. 2 ) which communicates with the cars of the elevator system to determine conditions of the cars and responds to hall calls registered at a plurality of landings in the building serviced by the cars under control of the group controller, to provide assignments of the hall calls to the cars based on a weighted summation for each car, wi h reapect to each call, of a plurality of system response factors, some indicative, and some not, of conditions of the car irrespective of the call to be assigned, assigning "bonuses" and "penalties" to them in the weighted summation. In the invention, rather than a set of unvarying bonuses and penalties being assigned based on the relative system response factors, the assigned bonuses and penalties are varied (4,6) based on the perceived intensity of traffic, as measured (3,5) by, for example, a past average waiting time and the elapsed time since registration of the hall call, a selected past five minute average waiting time being exemplary.
Abstract:
An elevator system contains a group of elevator cars (2). A group controller (32) contains signal processing means for controlling the dispatching of the cars from a main floor. During up-peak conditions, each car is dispatched from the main floor to a "sector" of contiguous floors. Sectors are contiguous. Floors that constitute a sector are assigned exclusively to a car and are displayed on an indicator (SI) at the lobby. Sectors are selected for assignment according a preset order. Cars are selected for assignment to a selected sector according to a preset order. If no car calls are made to the floors in the assigned sector, the next sector is selected along with the next car. When an up hall call is made during the up peak period, the car that is most able to serve the call is selected from those cars assigned to a sector in the upper 2/3 of the building. Cars serving floors in the lower 1/3 of the building are never assigned to up hall calls during the up peak period.
Abstract:
A plural elevator system having a group controller 17 for controlling the joint response of a plurality of elevator cars 3,4 to the needs of a building, employs a microprocessor- based group controller 17 for providing up peak, down peak and other zone-controlled elevator functions. The group controller provides a variable interval between dispatching of elevator cars from the lobby during up peak, the dispatching interval being controlled by the approximate round trip time of an elevator being dispatched from the lobby in serving the car calls registered within it and returning to the lobby, or the average of the approximate round trip times for two or three most recently dispatched elevator cars. The dispatching interval is determined by the approximate round trip time divided by the number of elevator cars serving the up peak traffic. In addition, the dispatching interval can be further reduced in dependence upon the number of cars standing at the lobby, the reduction being greater in case the last car leaving the lobby is not more than half full than in the case when the last car leaving the lobby is more than half full.