| Thermoelectricity air-conditioning is work with Peltier effect, it has fewer environment pollution, and lesser noise, smaller volume, higher stability etc. These prominent performance make it widely applied to the field of industry, medical treatment, electron and refrigeration technology.In the aspect of thermoelectricity air-conditioning control strategy, the fuzzy control which belongs to the category of intelligent control has remarkable characteristic. it utilizes fuzzy rules set which based on the object but not its model to make ratiocination and get the corresponding controlled value. Therefore, the system applies fuzzy control theory to temperature control of thermoelectricity air-conditioning for achieving intelligent control. In order to get better control effect, large amounts of data need to be processed dynamically for realizing the fuzzy control algorithm that used by the system. The application of ARM microcontroller LPC2210 provides hardware for realizing the algorithm, which makes the temperature fuzzy control of thermoelectricity air-conditioning practically.This paper studies the temperature fuzzy control system of thermoelectricity air-conditioning based on ARM. The fuzzy controller of the system is designed according to the heat conduction model of thermoelectricity air-conditioning and the experts' knowledge, the fuzzy rules set and quantized data table are given; Methods of temperature intelligence adjustment that could produce the "microweather" environment is studied, according to the theory of medical meteorology, and the model of non-linear mapping for temperature adjustment is constructed; Taking advantage of the system module, the simulink model of whole control system is founded and the simulation experiment is performed, the results indicate that the fuzzy control has the better effect.Based on the modeling and simulation of the system, we take the EasyARM2200 as hardeware development system, then the temperature acquisition and display subsystem is implemented by combining DS18B20 and SMG240128, besides the LPC2210-based fuzzy controller is designed. To meet the demand of thermoelectricity air-conditioning for power supply, the fuzzy PWM circuit of the system which using the structure of buck convertor is designed, it implements the control and adjustment of voltage and power, the simulation of the circuit is performed in the PSpice... |
