Multi-sensor Information Fusion Technology In The Smart Air Purification Device

As the technologies of sensor, computer and telecommunication have developed, studies on applications of complex sensor systems are being carrying out by more and more researchers. In sensor systems, the variety of information forms, the great number of information, the complex of information relations, the time limits of information process are much more difficult than human being's brain can deal with; therefore, multi-sensor information fusion theories are brought up.The paper studies the application of single chip computer and multi-sensor information fusion technology for design of an intelligent air fresher device. At first, the paper states the multi-sensor information fusion algorithm, and proves that the algorithm has good feasibility. After that, according to the specifications of the air fresher, an improved fuzzy evidence theory, which combined fuzzy theory and D-S evidence theory, are used for design of the air fresher. At last, an intelligent air fresher with the function of information fusion and air varying forecast control is designed.