一种可移植的机顶盒SI模块的设计与实现

Design and Implement of a Portable SI Module

本文基于与操作系统和硬件平台无关的适配层接口,提出一种可移植的机顶盒SI模块架构,设计了一种树形存储与线性索引相结合的SI数据库结构,同时提出了一种主频点EPG信息的接收策略。最后,实验结果表明SI模块很好地实现了设计功能。

This paper designs a portable SI module structure used on set-top box, which is based on a porting layer unrelated with operating system and hardware platform. It designs a SI database structure using a tree storage structure combination of linear index chains. It also presents a strategy for receiving EPG information broadcasted on main frequency. At last, the experiment results present that this SI module achieves the designed functions.