国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

Based on the fact that the elevators of high-rise building are crowded and dispersed, and maintenance is not timely, etc, an elevator group control system is put forward. The system uses multi-objective optimization method to establish mathematical model, and uses the advantages of particle swarm, which contain simple concept, fast convergent rate and easy to implement. At the same time, introduce simulated annealing to overcome the defect of easily fall into local optimum of particle swarm. Optimize the objective function, and PLC programming to calculate the parameters and upper machine to schedule calculation, then optimizes and reasonable dispatches elevators according to the result of algorithm. After simulation at MATLAB environment, the system has greatly saved the average time of waiting for the elevator, the average time of taking the elevator and the energy consumption of the system. At the same time, it has shortened the downtime and maintenance time, and has great application prospect.