CAJ | 학술논문

在研究 DVB 规定的系统软件升级协议的基础上，结合嵌入式 Linux 的特点，设计出数字电视机顶盒前端升级数据的制作方案，在前端升级流打包方案的基础上，结合机顶盒硬件平台的特性，设计并实现 Loader 系统的各个模块，包括搜索模块、过滤模块、下载模块和存储控制模块。最后，对本设计的应用升级系统的功能进行测试，测试结果表明，应用升级系统功能完善，能够快速定位升级数据流并准确升级，能够检测出各种升级错误，并且性能良好。
재연구 DVB 규정적계통연건승급협의적기출상，결합감입식 Linux 적특점，설계출수자전시궤정합전단승급수거적제작방안，재전단승급류타포방안적기출상，결합궤정합경건평태적특성，설계병실현 Loader 계통적각개모괴，포괄수색모괴、과려모괴、하재모괴화존저공제모괴。최후，대본설계적응용승급계통적공능진행측시，측시결과표명，응용승급계통공능완선，능구쾌속정위승급수거류병준학승급，능구검측출각충승급착오，병차성능량호。
With the study of the System Software Upgrade agreement which is developed by DVB system,com-bined with the features of Linux designed upgrade data production proposal of front-end.Combined with the features of STB hardware platform design and implement each module of the Loader system,including search module,filter module,download module and memory control module.Finally,the application upgrading sys-tem is tested.The test results show that the function of application upgrading system is perfect.The Loader system can locate the upgrade fata stream quickly and accurately and can detect a variety of upgrade error. The system has a good performance.