Abstract:
The invention concerns a method for solving an optimization task consisting of a plurality of sub-functions in the control of the operation of an apparatus. In the method, a set of a plurality of solution alternatives is generated and, according to the method, each sub-function is normalized. Normalized cost functions of the sub-functions are generated for each solution alternative for solving the optimization task, and based on the normalized cost functions of the sub-functions, a set of solutions to the optimization task is formed. From the set of solutions, the best solution is selected and the apparatus is controlled in accordance with the solution thus selected.
Abstract:
The present invention discloses a method and a system for the allocation of elevators on the basis of calls in an elevator system. The method produces for different route alternatives a cost function wherein the traveling time of each passenger is calculated. The calculation of the traveling time is performed taking into account the time spent while waiting for an elevator at a floor, the ride time in the elevator car, the delaying effect of active landing and car calls on the traveling time and the delaying effect of car calls given by new passengers entering at intermediate stops. The method is advantageous in the destination call system, but in the traditional up-down call system it is possible to utilize information provided by traffic statistics to predict the destination floor. Route alternatives can be created e.g. by using genetic algorithms. Once the route alternative giving the shortest average traveling time has been calculated, the elevators are controlled according to this route. In intensive traffic conditions, traveling time is optimized, and in quiet traffic conditions, passenger waiting time is optimized.
Abstract:
The invention relates to a method for allocating landing calls issued by passengers, in which method each passenger gives his/her destination floor via a call device. According to the invention, the call is allocated to an elevator car to serve the passenger via genetic allocation, wherein the floors of departure and destination of the passenger are recorded in alternative chromosomes, the required data regarding the passenger and elevator car being recorded in a gene in the chromosome, that, utilizing genetic methods, the best chromosome is selected, and that the passenger is directed into the elevator car selected, and that the selected elevator car is directed to serve the passenger in question.
Abstract:
Genetic procedure for the allocation of calls issued via the landing call devices of elevators comprised in a multi-deck elevator group, in which procedure a multi-deck elevator model is formed in which the limitations of and rules of behaviour for each elevator in the multi/deck elevator group and each car of each elevator are defined; a plurality of allocation options, i.e. chromosomes are formed, each of which contains a car data item and an elevator direction data item for each active landing call, and these data, i.e. genes, together define a car to serve each landing call as well as a collective control direction for the elevator; for each chromosome, a fitness function value is determined, one or more of the chromosomes are selected and altered in respect of at least one gene; fitness function values are determined for the new chromosomes; the process of altering the chromosomes, selecting chromosomes and determining fitness functions is continued until a termination criterion is met and, based on the fitness function values, the most suitable chromosome is selected and the calls are allocated to the elevators and cars in the elevator group in accordance with this solution.
Abstract:
A method for allocating an elevator in a destination floor elevator system comprising an elevator group consisting of several elevators, a passenger data terminal for reserving elevators for use by passengers, an elevator group control system for controlling the elevators in response to signals from the passenger data terminal. The method of the invention comprises the following steps: the size and destination floor of the group of passengers are input into the control system of the elevator group, one or more elevators are allocated to the group of passengers by utilizing the size and destination floor of the group, and the members of the group of passengers are informed about the allocation.
Abstract:
An elevator group control method for allocating landing calls and car calls to elevators so that the objectives set are met. In the method, a car-specific energy consumption file is generated to describe the energy consumption occurring during each trip of the elevator from each floor to each one of the other floors with different loads, and the calls are so allocated that the energy consumption resulting from serving all the active calls is minimized.
Abstract:
The present invention describes a method and a system for generating a request for elevator service. In the system of the invention, the elevator user receives with his/her terminal (11) a general transmission of information about the elevator system from base stations (10) placed in the elevator lobby of the building. By means of the terminal (11), a service request is generated on the basis of the goal and the information provided by the general transmission. The service request is transmitted further to an elevator group controller (14) via an edge server (12) and a local server (13). The edge server (12) checks the request for correctness and the local server (13) functions as a point of connection between the elevator group and the external world.
Abstract:
The present invention deals with a method and an apparatus for the input call needed in an elevator system by means of a wireless call input device. The call input device may be a device provided with a display and a keypad, designed especially for this use. In a preferred embodiment, the call input device is the user's mobile telephone and the system utilizes technology consistent with the Bluetooth standard. RFID technology or the use of bar codes is also possible. For the user a profile is created which contains the user's name, statistical information regarding the destination floors most frequently selected by the user, and possible additional services. The user can input a call from an elevator lobby before arriving to the elevator. After the system has allocated the most suitable elevator to the user, corresponding information is presented on the display of the call input device. This information can be accompanied by guidance information and information about an estimated waiting time. The destination floor alternatives can also be programmed to the call input device by the user him/herself. Additional services can be provided to the user of the call system and to other parties working in the building by connecting the control system to the Internet e.g. via an embedded mobile telephone.
Abstract:
Elevator group control method for the allocation of landing calls, in which method a target value is assigned to a given service time of the elevator group and landing calls are so allocated to elevators that the assigned target value of the service time is realized on the average, the energy consumption of the elevator group being thereby reduced.
Abstract:
A method for allocating calls entered via the landing call devices of elevators belonging to an elevator group so that there are simultaneously at least one floor to be signaled according to the service routes of the elevators. The allocation decision is made by a genetic allocation method. The allocation decision is input into a call fixation control unit, which takes care of the reservation and release of landing calls and the control of signaling. In the case of a reserved landing call, the range of values of the gene is limited.