The Design And Research Of Elevator Group System Control Based On FPGA

In modern intelligent buildings, people always equip for a building several elevators because of all kinds of demand of passengers and big flux of passengers. That can improve service quality and service efficiency of system of elevators. It makes the building work well. The technique of group control of elevator is suitable for realization the above object.As the group control of elevators traffic system deals with is a complex, random, multi-object, decision-making problem with much non-linear and uncertainty,it is significative both in theory and in real-life to research this.The major matter is as follows:1. Current elevator group control technology is analyzed; a new scheme of elevator group control system is pointed out.2. The module of elevator group control system base on Petri-net is established. Considering three aims: the satisfaction of people who is waiting for the elevator, the satisfaction of people who is in the elevator, and the ullage of energy, the control algorithm is designed.3. The structure of the system is designed, including the working flow and the scheme how to carry out of the elevator group control system.4. The system hardware structure is carried out. The system hardware structure is based on FPGA. It emphasizes on how to design the interface module and the communication module.5. The system software structure is carried out. Use of the C and the VHDL programming language, the software system is completed. The software system is based on modular design; modules are independent from each other, so the software is convenient to write and debug. The software standardization of the elevator group control system is analyzed, in order to promote the dexterities of software system and expansibility of system.