Research And Implementation Of Intelligent Vechicle Terminal Software System Based On LTE

With the rapid development of the car and mobile Internet technology, the servicesprovided by the vehicle terminal software system can’t satisfy the various new requirementsof car Internet users. This is because of the limitation of the communication based on the2Gand3G network. LTE provides a new solution for the development of vehicle terminalsoftware system. Based on the LTE technology, this dissertation researched and developed avehicle terminal software system. The main contents include:1. Researched the logical and physical structure of LTE wireless communication systemplatform, built the vehicle-vehicle, vehicle-road communication system platform based onLTE, and then analyzed the working principles and key technical indicators of the system.2. Adopted the new communication module ME909T which is specially used in carnetworking applications, designed the vehicle terminal hardware structure based on theS3C6410processor. Analyzed the demands of the software system and designed the systemstructure.3. Analyzed the working principles of boot loader, operating system kernel andembedded file systems, finished the transplant work. Extend the functions of boot loader tosimplify the system installation, built the embedded Linux development platform for thevehicle terminal software system.4. Based on LTE communication developed a vehicle terminal software system. Thesystem realized the functions of real-time positioning in electronic map, car monitoring etc.Took advantages of the large communication bandwidth and low latency of LTE, provided theservices such as traffic video real-time wireless transmission and safety informationpublication.5. Analyzed the key technologies, achievement frames and search algorithms ofelectronic map location search, proposed an algorithm which is suitable for the locationsearch of moving object to resolve the problem that traditional search algorithms can’teffectively applied to the fast moving vehicle terminal location search. The results show thatthis algorithm can significantly improve the efficiency of location search.The results indicate that the terminal software system is stable and reliable; it can meetthe demand in real-time and reliability of data transmission. The functions provided by thesystem can meet the needs of practical engineering application.