摘要洛阳理工学院毕业设计（论文）PAGEIV洛阳理工学院毕业设计（）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、摄像及视频显示技术而设计的一种可视对讲智能系统。该系统采用模数混合技术，即语音数字，视频模拟。视频信号为模拟传输；音频信号及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、视频显示及控制模块、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及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范系统，是一种理想的安全防范装置。家人可以在室内，通过电视屏幕看图像、语音对讲，远距离了解门外的情况，准确判断来访者的身份，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晰、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研究的目标。关键词：图像转换系统，智能化，单片机IMAGECONVERSIONSYSTEMABSTRACTAtpresent,China'shousingdevelopmenthasenteredanewperiodofdevelopment,theintelligentsystemshavebeenusedasintelligentofficeandintelligentresidentialdistrictisanimportantcomponentofdesignismainlybasedonawiredorwirelesscondition,applicationofmicrocontrollerprogrammingtechniques,duplexintercomtechnology,cameraandvideodisplaytechnologyandthedesignofavisualintercomintelligentsystemThesystemuseshybridtechnology,namelyspeechdigital,videosimulationThevideosignalisananalogtransmission;audiofrequencysignalandacontrolsignaltodigitaltransmission,thedesignisbasedonSCMAT89C2051ascontrolcore,withcalldetectionmodule,apickingandhangingdetectionmodule,videodisplayandcontrolmodule,unlockingandaudiosignalinput/controlmodule,aninputaudiosignalamplificationmodule,anaudiosignaloutputamplifiermoduleandkeycomponenttoformanimageconversion.Intelligenttelevisionmonitoringdoorbellsystemisanewgenerationofelectronicsecuritysystems,andisanidealsafetydeviceFamiliesintheinterior,throughtheTVscreenimage,speechcommunication,remoteunderstandingoutside,toaccuratelyjudgetheidentityofvisitors,decidewhetherornottoopenthedoortoreceivethesupportoffamily,personalandpropertysafetyPeopleneedurgentlyanotonlysafeandreliableimageclarity,accurate,reliable,callshowedhighsensitivityanduniqueshape,novelappearanceontheadvantagesofintegrationofintelligentproducts--intelligenttelevisionmonitoringdoorbellsystem,sotheimageconversionsystemisthegoalofthisresearch.KEYWORDS:intelligentmonitoring