Method for quickly displaying reversing video by Android vehicle machine system

Abstract

The invention discloses a method for quickly displaying a reversing video by an Android vehicle machine system. The method comprises the following steps: S100, powering on the Android vehicle machinesystem, and starting an Android system cold machine; S200, loading a bootloader program of a vehicle-mounted processor, guiding the bootloader program, initializing a controller related to the displayof the Android system through the bootloader program, and guiding kernel programs of the Android system and the linux system through the bootloader program; S300, after the linux system is started, loading a reversing video application program; after the Android kernel is started, starting a JAVA virtual machine, and operating an Android application program; S400, using a Linux system applicationprogram to continuously detect whether a reversing signal exists or not, and when the reversing signal is detected, executing a step S500; and S500, acquiring camera video data through a Linux system, and displaying the acquired camera video data on a display screen of the Android vehicle machine. Compared with the prior art in which rapid reversing video display is realized through two modes ofhardware and software, the method has the advantages of low cost, more flexible realization, high reversing video display speed and the like.

Description

technical field [0001] The present invention relates to the technical field of in-vehicle devices, in particular to a method for quickly displaying a reversing video in an Android in-vehicle system. Background technique [0002] In the current car-machine reversing solution, if the Linux or WinCE system is used, since the system loads faster, does not take up much hardware resources, and the file system is relatively small, the boot speed is relatively fast, and it is easier to realize fast reversing video display. But with the requirements of the network of cars, more and more car manufacturers began to use Android. Due to the openness of the Android system, the entire software ecosystem is relatively sound, and application development is simple. Coupled with the support of software developers, telecom operators, and chip manufacturers, the Android ecosystem has rapidly expanded from mobile phones to smart cars and other fields. Many car-machine systems begin to use the An...

AI Technical Summary

Problems solved by technology

And often if there are more Android peripherals and more driver modules, if you encounter a module with a long loading time, it will cause the Android driver to take too long to load, and the corresponding reversing video display time lags. The engine is cold and the engine is started, and the time required for displaying the reversing video is relatively short, which will cause this function to be impossible.

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