The article applies the Markov network theory to build the elevator traffic model.

Elevator traffic pattern recognition based on particle swarm optimization K-means clustering algorithm;

Simulating traffic flow generator based on elevator traffic probability simula-tion model;

Elevator dispatching method in idle traffic mode based on elevator traffic probability simulation model;

Optimal design of Monte Carlo multithreading elevator traffic flow based on network queuing;

A multi-mode prediction method is proposed after analyzing the elevator traffic flow.

A set of four-layer elevator model which is controlled by a MITSUBISHI PLC has been developed.

This paper introduces the study procedure of elevator model and the method of story-selection by PLC(programming logic controller) in detail.

The design and implementation of elevator model were introduced.

This paper introduces the elevator control system with PLC and inverter,expounds design method of hardware of this model elevator,produces one kind of hardware architecture schematic diagram,explains the modularized software design method,and gives the software modular structure and the partial PLC source program.