Design Of Video Capturing And Wireless Transmission System Based On ARM9

With wireless transmission technology continues to improve, and micro processingsystems constantly updated, Video communications technology has been integrated intopeople’s lives, Such as the design of the intelligent home control aspects, in the case of theunattended home can still achieve remote monitoring the situation in real time, and provideconditioning regimen. All this thanks to the network technology and micro-processingtechnology development. With the current wireless networks in embedded technologyusing, making the monitoring system is more concise, easy to operate, easy to maintain, Itcomes to be great potential that collection and transmission systems for video researchhotspot.This rearsch based on the actual needs of the design of a Linux-based operating,ARM9S3C2440microprocessor hardware video capture and transmission system. Firstly,crop the kernel, cross-development environment, and guide the transplant procedure on aplatform such as built the Linux operating system; Using OV9650CMOS camera, thisselection of MPEG4video codec technology for video processing, through wireless LANwl-167g driver written for image wireless transmission; While increasing the embeddedweb server function, the applicability of the system stronger.The system combines video capture, video codecs, wireless transmission, networkservices and many other technologies. Using ARM9hardware system compatibility,hardware rich interfaces, support for network protocols, etc., to increase the embeddedsystem integration and reliability; Collection of embedded Linux operating system softwarecan be arbitrarily cut, stable, easy to transplant network features excellent characteristics.Re-embedding wireless network module, the system to solve the traditional monitoringsystem field wiring difficulties, geographical constraints and other shortcomings. Finalresults show that video information can be displayed on the LCD clear maximum wirelesstransfer rate up to second5Mbp, suitable for most occasions monitoring systemrequirements, broad application prospects.