Abstract:
An uncertainty filter is provided with input data which is indicative of a fuzzy logic set having basis elements corresponding to elevator cars of an elevator system having degrees of membership associated therewith corresponding to the utility (suitability) of assigning the associated car to service a hall call. The uncertainty filter chooses a car corresponding to the term from the set having the highest degree of membership. The choice can be delayed until; a predetermined amount of time has passed; the degree of membership exceeds a predetermined amount; or the degree of certainty (the degree of membership of the chosen car over the sum of degrees of membership of the other cars) is more than a predetermined amount; or until either the degree of membership or the degree of certainty meets a value which varies as a function of time from when a hall call was registered.
Abstract:
An elevator control apparatus capable of predicting reversion floors of elevator cages accurately. The control apparatus comprises a neural network, in which traffic state data are fetched into the neural network, so that predicted values of floors where the moving direction of each cage is reversed are calculated as predicted reversion floors. In the elevator control apparatus, reversion floors near true reversion floors can be predicted flexibly correspondingly to traffic state and traffic volume.
Abstract:
An elevator group control with immediate allocation of floor calls includes an apparatus for processing car calls according to a car call algorithm implemented in a process computer in dependence on the traffic volume, the position of the calls, and the immediately allocated floor calls. Floor calls allocated by a floor call algorithm are entered for each elevataor car in a first list of the current one half round trip and/or in a second list of the next one half round trip. Both lists are stored in a memory region common to the algorithms. In the case of low traffic volume, car calls lying ahead of the elevator cars are entered into the first list unconditionally and car calls lying behind are entered into the second list subject to a maximum trip distance. In the case of average traffic volume, car calls lying ahead are entered into the first list in case synonymous allocated calls are already present therein. Otherwise, these calls are entered into the second list as also are the car calls lying behind subject to the maximum trip distance. In the case of high traffic volume, an entry takes place into the first and second lists only in case synonymous allocated calls are entered and the maximum trip distance is not exceeded.
Abstract:
The group supervisory apparatus for an elevator according to one aspect of the present invention for assigning a plurality of cages to a hall of congestion when the congestion of the hall is detected comprises reference service interval setting means for setting a reference value of a period (hereinbelow termed "a reference service interval") from when the cage to be previously serviced becomes a first state states of a cage are termed arbitrarily upon operations, such as the decisions of the stop of the cage, the opening/closing operation of the door, the open state of the door, the start, or the stop) to when the cage to be serviced later becomes a second state of one of the above-described states in response to the traffic volume of the hall of congestion. This aspect of the present invention further comprises reference time setting means for setting a reference value of a time (hereinbelow termed "a reference time") when the other cage becomes the second state in the hall of congestion on the basis of the first state time of the predetermined cage and the reference service interval in response to the number of the cages of additional assignment, second state time predicting means for predicting a time when the cage becomes the second state in the hall of congestion, and additional assigning means for selecting and assigning the cage having a small deviation between the second state predicting time and the reference time as the cage of additional assignment.
Abstract:
At a single floor of a building, such as at the lobby, destination calls are entered via a destination call entry device touch pad such as a (12) so that overall system response can be optimized during up-peak service intervals. A maximum number of calls are assigned to each car in order of its priority, or advantageous situation with respect to loading the lobby passengers, and the dispatch interval for each car is individually adjusted. The calls may be assigned to a car prior to its arrival at the lobby, and call assignments are audibly and/or visually displayed by an indicator device (16).
Abstract:
A supervisory apparatus for elevators wherein cages are respectively caused to disperse and wait at predetermined floors during an inactive elevator operation during which a demand for the cages has decreased; the demand magnitudes of the cages in each of a predetermined number of time zones into which one day is divided, future demand magnitudes are estimated for each time zone on the basis of the measured values, and a suitable number of floors are allotted to each cage on the basis of the estimated demand magnitudes so that the respective cages may take charges of equal demand magnitudes during the inactive elevator operation. Further, the waiting floor of each cage is determined at that floor of the allotted floors at which an expected value of a period of time required for responding to a next occurring hall call becomes the smallest.
Abstract:
An elevator group control system in which, in response to origination of a new hall call, a floor-stop call evaluation factor indicative of the degree of saving of power consumption is computed besides a serviceability evaluation factor indicative of the passenger serviceability, for example, the waiting time. One of these evaluation factors is weighted relative to the other to compute an allocation evaluation factor indicative of the suitability of allocation of the new hall call to one of the elevator cars, and the new hall call is allotted to the elevator car which is decided to be most suitable for the service in respect of the value of the allocation evaluation factor.
Abstract:
An elevator control system employes microprocessor-based group controller 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 calls to cars based on the summation for each car, with respect to each call, a weighted summation of a plurality of system response factors indicative of conditions of the car irrespective of the call to be assigned, and indicative of conditions of the car relative to the call to be assigned, including factors relating to preferring cars which are running, which require motion to provide service already assigned to the car, which do not have lobby calls, which are not positioned at the lobby, which are not full, even though the car may have a car call at the floor of the hall call under consideration, which do not have excessive car calls in them, and so forth. Exemplary apparatus and logic flow diagrams are disclosed to illustrate the specific manner of assigning calls to cars in accordance with the invention, and to illustrate the environment in which the invention may be practiced.
Abstract:
An elevator control system for controlling a plurality of elevator cars arranged for parallel operation for servicing a plurality of floors of a building, in which means are provided so that, in response to origination of a new hall call in addition to hall calls originated and allotted already, a suitable elevator car for servicing this new hall call can be selected and the new hall can be allotted to the selected elevator car to be serviced by this elevator car. In the system, this new hall call is allotted preferentially to one of the elevator cars having an already instructed stopping floor within a predetermined floor range covering a plurality of backward and/or forward floors contiguous to the new hall call originating floor. In this elevator control system, the already instructed stopping floor is evaluated by employing a weight coefficient which is variable depending on the factor such as the position of the already instructed stopping floor either backward or forward relative to the new hall call originating floor, or the relative distance between such floor and the new hall call originating floor, so as to provide improved elevator service.
Abstract:
In an elevator system comprising a plurality of elevator cars each serving a plurality of floors, an elevator control device is provided in which each car has a service zone, hall calls within which the particular car is capable of answering, which service zone is changeable at any moment according to the changing traffic situation, any hall call generated from a floor being transmitted only to that car the service zone of which includes such a floor. Lest the service zone of a car includes so many floors that it is not certain whether or not the particular car is able to serve the farthest floor included in its service zone in a reasonable time, a maximum length or size of the service zone is predetermined thereby to prevent the car from answering a hall call from an extremely far floor.