Environment Controlling Technic Research Of Armada Bunk

Warship is one kind of war equipments. It is important for the design and development of the modern warship to lower noise in the cabins of a ship and keep the environment comfortable for the sake of protecting itself and attacking its enemies effectively. In this thesis, the primary task is to study the control technique of temperature, humidity and noise in the cabin environment, in order to control all kinds of noise in the cabins and make the crews have a comfortable surrounding to work and have a rest.This thesis mostly studies the low frequency noise control technique in the cabins. After testing the noise, people find that there is the low frequency noise which frequency is mostly 32HZ - 500HZ in addition to the intermediate and high frequency noise in the cabins. So this thesis studies the active noise control technique in the cabins. After studying and analyzing the digital filter and its algorithm, this thesis brings forward cabin three-dimensional field active noise control project 鈥?single-tunnel adaptive active noise control. In this control technique, this thesis achieve adaptive active noise control using FIR transverse construction filter and least mean square algorithm (LMS). At the same time, for making this system work better, this thesis still expatiates upon the choice and use of the electricity-sound equipments which are necessary in the noise control system. This thesis introduces the hardware and software design of active noise control system.In addition, the humidity and temperature also have certainly negative effect on the lowing noise result of the high frequency noise in addition to affecting the comfort of the seaman, therefore this thesis also makes some researches on the temperature and humidity control technique in the cabin. In the temperature and humidity control of the cabin, this thesis is primarily to make use of the internal resources of FLASH in the singlechip named CYGNAL C8051F020 to achieve the intelligent control of temperature and humidity. This makes thesystem have certain function of study automatically.Finally, I make an experiment in the humidity, temperature and noise control technique project which have been put forward in this thesis. At the same time , I study and analyse the result of this experiment.