The Application And Research Of The Embedded Database SQLite3Based On The Digital Set Top Box

With the development of computer technology and integrated circuit technology,embedded system is undoubtedly one of today’s most popular and most developmentpotential IT applications, and it has gone deep into all aspects of our life.A variety ofembedded products continue to emerge, some are usually common known in our handslike mobile phones, MP3players, video phones, set top box, etc. are typical embeddedsystem equipment, has brought great convenience to our life and work.Digital TV set top box is a consumer electronics devices which relys on televisionnetwork terminal to provide comprehensive information services, and It is an importantmedium of analog TV to digital TV transition, in addition to be able to convert digitalsignals into analog signals for analog TV to provide reliable voice, image so that userscan watch digital TV programs on their existing television sets,the set top box can alsobe capable of interactive digital entertainment, education and commercializationactivities through network.Now the set top box is not only powerful,but also interact with a greatcapability,and the demand for data is growing fast. Before the database was introducedto the set top box, we usually created the file system Or a linked list for data processing,to establish the file system needs to access the FLASH frequently, this will not onlyslow, but several times to erase also affect the life of FLASH. Way for the establishmentof a linked list, when a large amount of data, especially when more complex datarelationships, maintenance is a big problem.So it is necessary to introduce the idea of the database into set top box, the R&D person can be freed from the data management.As a typical representative of the high-performance small embedded database, SQLiteis implanted into set top box is a good idea.With my understanding and research on the most commonly used set-topbox,This paper introduces a powerful set top box hardware and software architecture,especially software architecture, do a more comprehensive analysis about applicationlayer and middleware layer. Depth analysis of the database in the set top box andsuccessfully transplant the SQLite3to the set top box, extend and optimize the numberof interfaces, making the applications more convenient.The function of the SQLite3in the set top box applications in this thesis, be testedby individuals and professional organizations. Meet expectations.