Digital TV Receiver Terminal Remotely Upgrade System Software Design And Application

Beginning in2004, China’s cable TV network is a smooth transition to digital TV fromanalog TV. Around the cable network operator has completed the conversion from analogtelevision signals to digital television signals. Nationwide deploy of digital TVterminalnumber over160million units, including one-way standard definition set-top-box,one-wayHD set-top-box, interactive standard definition set-top-box, interactive HD set-top-box,digital TV one of about five class digital TV receiver terminal. Terminal of the above fivecategories are the different types of chips,different memory configurations and differentmanufacturers. Extensible, scalable, requirements of the existing terminal set-top-box (ordigital TV one) must have a unifiedfunction of the remote upgrade to digital TV value-addedservices. Remote upgradeusing a variety of transmission bearer, upgrade data safe andaccurate transmission tothe set-top-box terminal.The main content of this article is on the basis of interactive digital cable televisionnetwork, research, design, application of digital television receiver remote terminal softwareto upgrade the system, and is compatible with a one-way digital cable television network.The digital TV DVB-C system structure, the IPTV system structure of the, set-top-boxterminal software and hardware structures and digital TV receiver terminal online upgradeprinciple and related processes. For most of the set-top-box terminal one-way broadcastwithout back-channel characteristics, the use of BAT table and NIT table, upgrade toactivate the location information detection technology to complete the upgrade file issuanceof the scope of control. The set-top-box terminal software DVB-C channel or IP channelactivation, upgrades, testing, file downloads, write the whole process can be FLASH. Theself-defined package file structure and RSA data signature algorithm to ensure accuratetransmission upgrade data security. It also describes the set-top-box terminal bootauthentication, upgrade, and cancellation and exception handling process in the IP channel.In different network environments cable operators to remote management of theimplementation of an integrated digital TV terminal software to complete the value-addeddigital TV service module software update. The same time, the paper elaborates the onlineupgrade to digital TV receiver terminal principles and processes to improve the menu promptsin the interface of the remote upgrade process, and guide the successful completion of theremote upgrade of software.