Design And Implementation On Elevator Control System

As vertical transporting facility, elevators are widely equipped for intelligent buildings. The services quality of elevator needs to be improved to satisfy the passenger, s requirements. Single elevator is insufficient for the inner building transportation. More elevators could service more efficient and shorten the waiting time and reduce energy consuming. As a consequence, the elevator group control system is introduced. The elevator group control system improves the service efficiency and quality by an optimized control policy which harmonizes multi-elevator operation. The thesis reviews the development of the elevator group control system,and introduces the current elevator group control technology,then points out the purposes and the meanings of the project. This thesis analyzes the requirement of the elevator group control system. Base on the analysis, the whole system structure is designed, and the system work flow is introduced briefly. The thesis systematically analyzes characteristics of the group control system. Base on the analysis, dispatch strategy is divided into two layers , upper layer and bottom layer. Upper layer is used to adjust with group control regulations and bottom layer is used to calculate with the algorithm on base of multi-objective optimization. Combining with characteristics of the group control system, the call distribution module model on base of multi-objective optimization algorithm is built. With the analysis method of modularization, all function modules are abstracted from the requirement of the elevator group control system. Further, the thesis briefly describes each module's function. For real-time requirement of the elevator group control system, communication project and structure of communication network are designed. For the high quality display and monitor of the elevator group control system, structure of group control display module, elevator monitor module, elevator fault management module and elevator fault display module is designed. For the real-time and high speed communication of the elevator group control system, all communication alternatives are compared and the communication network structure is designed. The thesis depicts realization of the call distribution module which is the core module of group control system. The thesis introduces realization of group control software system's key technology which included realization of inter-process communication, interface realization of display module and realization of communication. Finally, the thesis briefly introduces the design of the CANBUS frame structure.