Elevator group management and control apparatus

Abstract

An elevator management and control apparatus for operating elevators efficiently. The elevator management and control apparatus has estimation and calculation means for estimating the time until arrival of each car from a current position at a floor where a landing call is produced; travel distance estimation means for estimating the distance of travel along which each car travels from the current position until it stops after responding to every call allocated to it; evaluation and calculation means for calculating a waiting time for a landing call based on the time until arrival which is estimated by the estimation and calculation means, calculating a waiting time evaluation by using a first evaluation function in which the waiting time is used as an evaluation index, and calculating a travel distance evaluation by using a second evaluation function in which the travel distance calculated by the travel distance estimation means is used as an evaluation index; and allocation means for performing calculation of a comprehensive evaluation function for each car including at least the waiting time evaluation and the travel distance evaluation, and allocating a car having the minimum value of the comprehensive evaluation function to the landing call.

Description

technical field [0001] The invention relates to an elevator group management control device for efficiently utilizing multiple elevators. Background technique [0002] Group supervisory control is usually done when there are multiple elevators serving a building. The group management control device realizes the reduction of waiting time, etc. by efficiently utilizing the elevator groups managed by itself. One of the purposes of the group management control device is to save energy. [0003] In the conventional elevator group management control device, the number of allowed calls is set in advance for each floor, and when the landing calls above the number of allowed calls are registered, the allocation of elevators is restricted (for example, refer to the patent Literature 1). Thereby, the utilization of an elevator is restricted and energy saving is realized. [0004] In addition, in another conventional elevator group management control device, in the standby control d...

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Problems solved by technology

[0009] However, in the above-mentioned conventional elevator group management control device, when the number of landing calls is greater than the preset number of allowed calls, passengers cannot take the elevator from the floor, which is very inconvenient.

Moreover, when the number of landing calls is less than the preset allowable number of accepted calls, there will be no result different from the normal control, and there is a problem that the energy saving effect cannot be realized.

[0010] Moreover, in the above-mentioned other conventional elevator group management control device, although the effect of reducing the travel distance is relatively obvious, the frequency of standby control is very small, and the travel distance to the standby floor is not very long, so there is an overall The energy-saving effect of the small problem

[0011] In addition, in the above-mentioned another conventional elevator group supervisory control device, although it is possible to realize energy saving by performing call allocation, if the evaluation of the energy saving is increased, the transportation efficiency may deteriorate, that is, the waiting time may deteriorate.

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