發(fā)布時間：2019-03-27 12:02

【摘要】：隨著網(wǎng)絡技術的飛速發(fā)展以及芯片處理能力不斷提升,用戶對機頂盒使用需求越來越多,使用體驗越來越高。機頂盒作為家用電器類,不同于實質上已成為快消品的手機,可以通過直接淘汰舊機另置新機的方式來滿足用戶需求,這時保留硬件而持續(xù)不斷的升級軟件的方式成為了機頂盒行業(yè)最方便最經(jīng)濟的選擇。本文以四川金網(wǎng)通電子科技有限公司生產(chǎn)的基于海思Hi3716MV300主芯片的DVB+OTT機頂盒為硬件開發(fā)平臺。軟件開發(fā)平臺為Linux 2.6操作系統(tǒng),該系統(tǒng)為經(jīng)過裁剪了一些機頂盒上不常用到的功能的版本。本文對機頂盒中常用的幾種升級方式都做了詳細的闡述,包括USB升級、TS流升級和網(wǎng)絡升級的詳細設計、實現(xiàn)及測試修改。本文的目標是在選定的硬件平臺上將這三種機頂盒軟件升級方式都設計并實現(xiàn)出來。USB升級方式是在開機時插入USB存儲設備,開機時能檢測到升級信息后進入loader開始USB升級;TS流升級方式是只要前端播放升級流,機頂盒無論是開機時還是開機后都能檢測到升級信息,滿足升級條件則進入loader進行OTA升級;網(wǎng)絡升級方式是在機頂盒連接上網(wǎng)絡后,主動去服務器上獲取升級信息,檢測到符合條件的升級信息后,進行網(wǎng)絡升級。本文使用模塊化設計方法,將研究的內(nèi)容分為升級信息檢測模塊、數(shù)據(jù)下載模塊、升級數(shù)據(jù)寫入模塊、升級安全保障模塊和升級輔助模塊。把各個模塊都實現(xiàn)之后和整個機頂盒系統(tǒng)一起進行綜合調試,確認軟件滿足設計要求后,將機頂盒投入市場,去接受市場和用戶考驗,根據(jù)市場反饋不斷修正完善。
[Abstract]:With the rapid development of network technology and the improvement of chip processing ability, users need more and more set-top boxes and experience more and more. Set-top box, as a kind of household appliances, is different from mobile phones, which have become fast consumables in essence, and can meet the needs of users by directly eliminating the old ones and installing new ones. This is the most convenient and economical choice for the set-top box industry to retain hardware and continuously upgrade the software in a way that has become the most convenient and economical choice for the STB industry. In this paper, the DVB OTT set-top box based on Hayes Hi3716MV300 main chip produced by Sichuan Jinnetong Electronic Technology Co., Ltd is used as the hardware development platform. The software development platform is Linux 2.6, which cuts down some of the features that are not commonly used on the set-top box. In this paper, several kinds of upgrading methods commonly used in STB are described in detail, including the detailed design, implementation and test modification of USB upgrade, TS stream upgrade and network upgrade. The goal of this paper is to design and implement the three upgrade methods of STB software on the selected hardware platform. The upgrade mode is to insert the USB storage device at the boot time, and then can detect the upgrade information and start the USB upgrade by entering the loader when the upgrade information is started. The upgrade mode of TS stream is that as long as the front end plays the upgrade stream, the set-top box can detect the upgrade information when it is turned on or after the start-up, and if the upgrade condition is satisfied, it will enter the loader for OTA upgrade; After the set-top box is connected to the network, the network upgrade mode is to actively go to the server to obtain the upgrade information, and detect the qualified upgrade information, then carry on the network upgrade. In this paper, the research contents are divided into upgrade information detection module, data download module, upgrade data write module, upgrade security module and upgrade auxiliary module by using modular design method. After each module is realized and the whole set-top box system is debugged, after confirming that the software meets the design requirements, the set-top box is put into the market to accept the test of the market and users, and the system is constantly revised and perfected according to the market feedback.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN948.55;TP311.5

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