Research And Design Of Embedded Internet Video Phone

Video phone whose core function is the transmission of speech and video becomes the standard need gradually along with the advancements of technology and the promotion of people's living standard. Existing video phone generally transmits analog video signal using phone line, installation and connection is complex, distance also will weaken the intensity of the analog video signal. So this article discusses the design of embedded internet video phone system which transmits speech and video using local area network of living district in order to solve the problem of traditonal system and realize that the whole system is digital.Embedded system is so small that it can be embedded into the equipment. More and more high performance embedded processors have been produced along with the advancements of reference technology. Internet video phone application has been realized on these embedded processors, but high costing is the major factor which limits their market. So the emphasis of the article is how to design the system reasonably in order to realize internet video phone application on low end embedded processors. The article realized the function of internet video phone on an ARM7 micro controller and an ARM9 micro processor respectively through reasonable hardware and software design, and tested their performance, verified the feasibility of realizing video application on low end embedded processors, provided reference design for the video phone product which is based on the technology of internet.The bandwidth of Bluetooth wireless communication increases gradually along with the advancements of Bluetooth technology. The article discussed the use of Bluetooth technology in video phone system in the end and designed a feasible plan.