VOD stands for Video on Demand. This refers to any video service that offers videos, TV or movies available at a viewer’s convenience. With VOD, viewers can choose what to watch, when they want. Popular examples of Video on Demand businesses include Netflix, Disney+, Hulu and many more online streaming services. Vehicle-mounted VOD is the system that designed and developed for the middle and high-end vehicles and high-speed train to create a pleasant journey for the passengers by offering wide-ranging multi-media video & audio information. While mounted in vehicles, this system consists of one multi-media video frequency server and plenty of client-side; while mounted in bullet train, this system consists of several multi-media video frequency servers and plenty of client-side. Each server of the system is capable of up to 200 nos. of client-end simultaneous connection. Based on embedded system development, the software realizes message communication between server and each client-end via development and integration of modules such as server end program management system, client-end receive control program and digital communication program etc;As for the hardware, the passengers of each seat are provided with one TFT-LCD displayer with the function of integration video on demand. The passengers can realize man-machine interaction without disturbing any other passengers while enjoying the whole journey by touching screen to watch various video & audio programs, check for relative tourism information, play classified games etc. Integrated connection of software and hardware with the special shockproof and anti-interference treatment, the system makes a qualitative leap in information content, functionality, reliability and definition.