| Nowadays, With the increasing awareness of the requirements of audio-visual media and the rapid development of the wireless communication technology, wireless video communications technologies and high-definition multimedia technology are development in the two hot spots in today's information technology, which created by fusion between the two wireless high-definition multimedia communication technology mature at the same time they are also the future home of consumer electronics, video conferencing and other related fields, a major development direction. People on the family audio entertainment is no longer limited with the living room, bedroom and other places, hoping that it can cover every corner of the family, but the wire and layout of the resulting problems. Wireless video communications technologies can solve these problems well. However, because there are many bottlenecks in wireless video communication problem with the agreement: including bandwidth requirements, real-time requirements, power limitations and channel noise, the video encoding and wireless transmission technology has become today's information science and technology topics at the forefront. In this paper, audio-visual equipment for home without "lines" of a comprehensive, theoretical analysis, an efficient and practical home multimedia wireless high definition video communications program.First, by today's wireless HD technology research status at home and abroad, this article from the development of wireless multimedia communications technology background of the clear need to complete the system's basic functions, determine the overall scheme of the system were to proceed from the detailed hardware and software describes the composition of the whole system. Then the main target of the design and functionality of each module, wireless transmission of the implementation schemes for detailed analysis and research. Second, the article on the entire wireless video transmission hardware and software system is described in detail and implementation of programs adopted by the baseband processing module design and wireless transmission module using AMIMON's AMN2120 & AMN3110 and AMN2220 & AMN3210, and on this basis, use the NXP company as the core of the ARM Cortex M3 processor-based LPC1766 processor, part of digital circuits and analog circuits to control and complete part of the communication. Software, the development environment by IAR Systems Inc. IAR Embedded Workbench for ARM, ARM development environment than the other, IAR EWARM has started is easy, so easy to use and compact code. Code is mainly C, portability is good, and the code results high.Thirdly, this paper analyzed the transmission of information system introduced mechanism design problems on key technologies and corresponding summary analysis of the related technology analysis to prove that the design is feasible, then the work done on the text summarized, and future systems improve the work that the direction of improvements.This article studied the program to achieve a 30m effective transmission within a wireless high-definition video and similar technologies than before the weak through the wall has been greatly improved, truly based on the 5G band under the high-definition video transmission, video conference, home the areas of digital cinema has a wide range of applications. |
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