Vehicle-mounted display terminal with real-time data storage function and method thereof

The invention discloses a vehicle-mounted display terminal with a real-time data storage function. The vehicle-mounted display terminal comprises a master processor module, a storage module, a power supply conversion module, a bus communication module, a signal acquisition module, a display driving module and a human-computer interaction module. The storage function of real-time data is completed by adopting multiple storage media. Real-time storage of the operation data is completed via an FRAM in working, and the data are stored in a storage unit via a delay turn-off method when power is off. The storage function of the real-time data is completed without influencing security of an operating system so that the service life of the display terminal can be substantially enhanced, users can search and analyze system equipment operation state parameters anytime, system fault points can be positioned, the control strategy can be improved and production efficiency can be enhanced.