Train Monitoring System Design And Implementation

This thesis by analyzing the train monitoring system by designing a system block diagram,Hi3512for the main chip, embedded Linux operating system, the main chip SDK, completetrain embedded control system hardware and software design.The paper describes in detail the key parts of the design ideas and processes from hardwareto software and hardware, including the power supply system, power supply module, resetcircuit, and the AD converter circuit and other key parts of the circuit. The same time, thespecial environment of the train, the design of the train a dedicated power circuit of thetransformer, limiting, rectifier, protection and improve the power system, to ensure that thesafe use of the train. Hardware module, audio, video input and output interfaces, sensor alarminput and output interfaces, locomotive TAX box information collection circuit and so on.The software has completed the boot loader and the Linux operating system migration,hardware device drivers, the preparation of the various modules of the video codec, as well asother auxiliary functions such as FTP. The design of audio and video collection, processing,compression, storage, application software, designed TAX box for train information storage,the design of the audio and video, and composite TAX information handler. The completedprogram can handle the information, audio, video and data.Completed on the PC side design and video playback and TAX information analysissystem, the video decoder using a Hass H.264decoding library. The video display playbackuse the Microsoft Directshow9.0the SDK. The development tools used by the MicrosoftVisual Studio2005. The video playback analysis system is developed based on Microsoft’sMFC framework structure. TAX information is also based on this analysis and processing,and video playback on the player interface.After the completion of the entire system by more than a year to run test, the system isstable and reliable, the indicators are to meet the design requirements, and has been used inthe production and sales.