The Research On Elevator Group Control Parallel System

With the development of city,there are more and more high buildings.In order to improve the level of service and reliability, building is always equipped with multiple elevators. How to realize the optimized control of elevator, it has become an important topic in the elevator companies and the universities.The many targets,the uncertainty,the nolinearity,the disarrangement and short of maturity in information are very diffieult for elevator group control system. At the same time it request the real-time,the high stability and the safety.The research comes a company elevator group control system project.Firstly,the thesis puts forward background,then history and status are reviewed and the paralle computing technology of FPGA is detailed analyzed.The purpose,significance and the main content are introduced.Secondly,after analyzing EGCS structure, the systematic characteristic, traffic flow situation and the main data of EGCS are analyzed in main..For the randomness,the nonlinear,the disturbance,the fuzziness and the multi-objective of EGCS,the EGCS is a complex control system and briefly introduces four different traffic patterns:Up-Peak Traffic Pattern,Down-Peak Traffic Pattern,Balance Traffic Pattern and Idle Traffic Pattern. Some characteristic value affecting distribution of elevators are discussed in the EGCS.Thirdly,it is a problem to build the mathematical model of EGCS. The comprehensive evaluation function module,the multi calling dynamic processing module and the fuzzy inference module are designed adopting the modularization design idea. The comprehensive evaluation function module includes the waiting time algorithm module and the system energy consumpationg algorithm module.Based on the parallel algorithm,the four traffic pattern recognition and scheduling algorithm are designed in order to meet the four traffic pattern need.Then,the elevator group control parallel system hardware and software are designed,and RTL simulating test is proceeded by Modelsim-Altera.Finally,in order to test the elevator group control parallel system,The Labview PC monitoring interface and the simulation algorithm of matlab are designed,and the EGCS test in the elevator test platform to verify the effectiveness and practicability of the elevator group control parallel system.