Design And Implementation Of Vehicle Display Platform Based On ARM Cortex&VxWorks Operating System

With the rapid development of the automotive industry,the application areas of on-board display platforms are also gradually widening.They have gradually abandoned mechanical display instruments and turned to digital displays.For some vehicles traveling in special environments,users have higher requirements on the functions and performance of their on-board display platforms.In addition to the need to complete the display of vehicle information,it also requires the platform to perform functions such as data backup and data monitoring.On the basis of clarifying the functional requirements and non-functional requirements of the vehicle platform,this thesis designs and implements a vehicle platform that can be used for secondary development based on VxWorks operating system and ARM cortex application processor.This platform provides vehicle information acquisition methods and graphical display interfaces.The platform also provides auxiliary functions such as event logs,data backup,image file management,and security alarms.The work accomplished in this thesis mainly includes:(1)The migration of the VxWorks operating system of the main control board i.MX6Q is completed,which improves the real-time and reliability of the platform;(2)The platform processes the acquired raw data centrally and completes Unified standardization of data,in the process according to the platform interface display functional requirements,calculate the corresponding display data;(3)The platform uses WindML as a basis to build a graphical user interface,providing a variety of display elements and templates for users to use and display for specific information Alarm.In the interface display process,double buffering is adopted to avoid interface jitter and improve the user experience.(4)Auxiliary functions such as event log and data backup are implemented in the storage management module.(5)In the platform testing section,the functional testing and non-functional testing of the platform were completed.And to achieve vehicle display platform verification system to verify the availability of the platform.Finally,the thesis implements the full digital vehicle display platform.Users can customize the content of the display without additional learning through a simple interface and human-computer interaction process.Developers can take advantage of the underlying hardware support to perform software iteration and enhance function quickly,which avoids the secondary development and reflects the scalability of the platform.This thesis provides a more convenient,more personalized and more real-time vehicle display platform for users.Users can get more vehicle information and better user experience with the update and extension of the platform,which meets the needs of the user to display the diversity of the content of the vehicle display platform and the scalability,reliability and real time of the platform.