A Driver System Design Of Smart TVs Base On Layered Component

With smart TV's increasing complexity and diversification of the software and hardware,the software development and maintenance cycle is getting longer and longer.At present,a lot of smart TV driver system is based on the improved version of other products driver.The system is simple to connect between the internal modules,high efficiency of its function.Can only meet the needs of the product at that time.However,in the new application scenarios,the connection between the modules is very flexible,the type of data is also a variety,and the data processing methods will also vary with different chips.The bottleneck of the system lies in how to make it adapt to the rapidly emerging application scenarios.The already existed systems will gradually expose its problem that is not easy to extend,which often have to do bigger and bigger changes to meet the emerging needs,even start over again.Aiming at the deficiency of existing system,a component based development(CBD)driver system is proposed to design the smart TV.Through the design of component's interface,component's software structure,communication interface,storage management and other core content to complete the system architecture design.All of the components in the architecture have the same connection method,communication method and working flow,for the other components in the system and external application.This make the system not only easy to adapt the data type and connection changes from upper layer middleware and applications,easy to expand;but also make a clear boundary between components function,and clear layer in component.Easy to select different implementation,easy maintenance.Through the practice of specific projects,it is feasible to shorten the period of project development and maintenance,and make the driver system versatility,scalability,reusability and robustness.The main work of this paper is as follows: 1 design the framework of component based system to solve the problem that the modules in the system cannot be used directly by the upper layer middleware.2 design component based abstraction layer to simplify management and development.3.The design of each subsystem and module which is based on the component to make a complete solution of smart TV drive system.4System verification and result analysis.