Methods of the processing dairy products other than pasteurization and reducing water content(condensed milk),milk can also be processed into cheese.Namely with the cheese maturation method.Maturation is the final process of the cheese making process.Maturation(ripening)is a process that converts fresh curds(raw cheese)into cheese full of flavour.The research of the method of cheese ripening process is used Proportional Derivative Integral(PID)controller to control the parameters of temperature and humidity in the cooling room.Embedded through ATMEGA 16 devices as controllers,the sensing process is used by temperature sensors,humidity sensors and Peltier devices as coolants for the ripening process.The desired temperature setting is 16-20°C with a% humidity level.After the room temperature is reached 16-20°C with% humidity then the cheese material is inserted into the cooler for the ripening process.The working principle of this system is to stabilize temperature and humidity.Test of the results obtained by the value of the parameter controller Kp = 5.53,Ki = 8,Kd = 2,for the 16-200C temperature setting and% humidity.Changes in time from room temperature to set-point temperatures are relatively fast with the overshoot percentage of 11.11% and the rise time of 9 minutes.
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