(With the improvement of material civilization and the development of information technology, the modern community life is changing with each passing day. Personal computers and computer networks have entered thousands of households, and various intelligent household devices have also entered the family quickly. Traditionally, only TV and telephone services are available. It can no longer meet the growing needs of households. Internet, video teleconferencing, home office, online shopping, online university and other technologies are used in the family, home security monitoring (CCTV) system, intelligent access control system, IC card card system, home electronics The automatic control system has entered the smart house.)
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