面向DTV的嵌入式中间件研究与实现*

在数字电视(DTV)系统中，如何解决异构平台和操作系统对上层应用支持的问题，是实现数字电视普及的关键。数字电视中间件作为一种采用组件思想设计的软件，具有实时嵌入式特性，符合数字电视系统对效率和资源的要求及限制。它使多媒体应用能在不同硬件厂商开发的数字电视平台上运行，实现了应用程序“一次编写，多处运行”的思想，降低了数字广播服务运营的成本，用更少费用能享受到更加丰富多彩的数字化服务。

Research on Embedded Middleware and Its Implementation Oriented DTV

In the DTV system,it is a key problem how to let applications run in a transparent environment without caring about the detail of the infrastructure,such as different operation systems and hardware.The real-time embedded middleware can resolve such a problem.It allows multimedia applications to run in different infrastructure and help applications to write once,run everywhere.Meanwhile,it reduces the cost of the management of the digital broadcasting and let the customers spend less money in enjoying digital services.