图像转换系统摘要本设计主要是根据一个在有线或无线条件下，应用了单片机编程技术，双工对讲技术、摄像与视频显示技术而设计的一种可视对讲智能系统。该系统采纳模数混合技术，即语音数字，视频模拟。视频信号为模拟传输；音频信号与控制信号为数字传输，设计是以单片机 AT89C2051 作为系统控制核心，配以呼叫检测模块、摘挂机检测模块、视频显示与控制模块、开锁和音频信号输入/控制模块、音频信号输入放大模块、音频信号输出前置放大模块以与按键组成形成图像转换。智能电视监控门铃系统是新一代电子安全防系统，是一种理想的安全防装置。家人可以在室，通过电视屏幕看图像、语音对讲，远距离了解门外的情况，准确推断来访者的身份，决定是否开门接待，保障家庭的人身和财产安全。人们迫切需要一种不仅安全可靠图像清楚、通话可靠、显示准确、灵敏度高而且造型独特 、新颖美观等优点于一体的智能产品——智能电视监控门铃系统，因此图像转换系统是本课题讨论的目标。关键词：图像转换系统，智能化，单片机IMAGE CONVERSION SYSTEMABSTRACTAt present, China's housing development has entered a new period of development, the intelligent systems have been used as intelligent office and intelligent residential district is an important component of design is mainly based on a wired or wireless condition, application of microcontroller programming techniques, duplex intercom technology, camera and video display technology and the design of a visual intercom intelligent system The system uses hybrid technology, namely speech digital, video simulation The video signal is an analog transmission; audio frequency signal and a control signal to digital transmission, the design is based on SCM AT89C2051 as control core, with call detection module, a picking and hanging detection module, video display and control module, unlocking and audio signal input / control module, an input audio signal amplification module, an audio signal output amplifier module and key component to form an image conversion.Intelligent ...
