A multi-line group control elevator dispatching method

Abstract

The invention discloses a multiple-on-line group control type elevator dispatching method. The method includes the steps that firstly, according to the passenger flow number percentage within a unit time interval and the running states of elevators, a traffic flow mode of the elevators is determined; then according to the four indexes of the elevator waiting time, the elevator taking time, the carrying capacity and the system energy consumption, a short evaluation function, responding to an elevator calling signal, of the elevators is calculated; by applying fuzzy logic control, a subordinatefunction is obtained, then the subordinate function is used for replacing the short evaluation function, and a short subordinate function is obtained; then a particle swarm optimization method is usedfor initializing the short subordinate function into a swarm of random particles; evaluation function values of each particle and a particle swarm are calculated by using an evaluation function expression, and an optimal solution is obtained through the evaluation function values; the speed and positions of the particles are updated, and new evaluation function values are calculated again; repeated cycling is performed till a number of iterations is achieved; and finally, an optimal elevator dispatching scheme is output. By means of the multiple-on-line group control type elevator dispatchingmethod, the elevator waiting time and the elevator taking time can be reduced for passengers, energy consumption is reduced, and the passenger experience is improved.

Description

technical field [0001] The invention belongs to the technical field of elevator group control, in particular to a multi-line group control type elevator dispatching method. Background technique [0002] With the popularity of elevators in daily life, people put forward higher requirements for the service quality of elevators, not only to ensure the safety and comfort of elevators, but also to minimize waiting and riding time. For multiple parallel elevators, if separate control and operation are used, when passengers press the landing call buttons of several elevators at the same time, it may cause many elevators to run with no load and unnecessary stoppages, causing the elevators to fail. Efficiency drops. Practice has proved that the use of elevator group control technology in large high-rise buildings will greatly improve the service quality of the elevator transportation system and increase the transportation capacity by 15% to 25%. Due to the realization of automatic ...

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Problems solved by technology

[0003] At present, the traditional elevator group control and scheduling strategies are relatively lagging behind, and cannot simultaneously optimize multiple performance indicators such as reducing passenger waiting time and energy saving

The traditional group control system adopts single-objective optimization technology. Even if the optimization of multiple indicators such as waiting time and energy saving is considered, its processing technology still weights multiple indicators into a single indicator. There is a typical nonlinear relationship between indicators, and this linear weighting process cannot fundamentally achieve the optimal

Generally speaking, there are many defects in the traditional elevator group control system, such as low operating efficiency and high resource and energy consumption. Therefore, it is urgent to realize the unified coordination and optimization of the elevator group control system through a reasonable scheduling method scheduling

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