| With the rapid development of computer and communication technology, the Internet of things age is coming, more and more embedded devices connected to Internet, and greatly influenced people’s life. With the advantage of low cost, high performance and low power, embedded devices make a great convenience to people’s life. Such as mobile phone, tablet computer and mobile ticketing equipment on the train. In the field of public service, application of networking equipment has not been used popular. In public places, there should have a device provide accurate time display and broadcast information to public by wireless network, by which people could have a good travel.This paper introduced a wireless multimedia broadcasting terminal equipment by using computer network technology, electronic technology, and communication technology on embedded development platform. The device could display time clearly accurately by led lamps which are environmental protection and energy saving. What is more, it achieve high stability, high brightness, low power consumption. On the other hand, the equipment could work without person because of powerful radio capability and flexibility of TCP/IP protocol, it could also control receive object to avoid interference.Base on embedded development platform, I have completed hardware and software design for display module, network communication module, broadcasting module and make a test. The experiment proved it is stable, reliable and practical. Generally speaking, it could be applied to the station, schools, airports and public places such as parks. Have a wide practical value.The innovation is:(1) Wireless network is integrated with traditional broadcast equipment. Traditional broadcasting equipment had disadvantages of clumsy, not easy to use and not very smart. TCP/IP protocol made a perfect performance.(2) In traditional equipment, time display equipment and broadcast equipment are divided. Since, time displaying is integrated with broadcasting device and provided stronger utility.The significance is:(1) Integrated time display with broadcasting device.(2) Improved the flexibility of the broadcasting set, could work without manual participation.(3)Provide a accurate and uniform time for each terminal, the realization of the unity School of time, for public places to provide accurate in public place. |
