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Method and system used for playing vehicle-mounted compact disc and based on Android operating system

A technology of operating system and playback method, applied in program loading/starting, information recording on disk, instrument, etc., can solve problems such as inability to play video files, user inconvenience, etc., optimize system performance and reduce research and development workload Effect

Active Publication Date: 2015-03-25
CHINA STANDARD SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, owing to can not utilize Android operating system to realize playing video files such as DVD or CD on vehicle-mounted equipment, bring inconvenience to the user

Method used

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  • Method and system used for playing vehicle-mounted compact disc and based on Android operating system
  • Method and system used for playing vehicle-mounted compact disc and based on Android operating system

Examples

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no. 1 example

[0027] figure 1 It is a schematic flowchart of a method for playing an in-vehicle optical disc based on the Android operating system according to the first embodiment of the present invention.

[0028] In this embodiment, the CD playback on the vehicle-mounted device is realized by utilizing the Camera system architecture in the Android operating system.

[0029] In the prior art, the function of the Camera module in the Android operating system is to obtain video information, such as taking pictures, video calls, etc., and this module is an input device. The specific workflow of the Camera module is: the upper layer application of the Android operating system opens the Camera device through layer-by-layer calls of functions, then obtains the image data stream through the Camera driver, and then passes the acquired data stream to the upper layer, so that the upper layer You can see the image obtained through Camera.

[0030] Since the operation of playing an optical disc is ...

no. 2 example

[0064] figure 2 It is a schematic structural diagram of an Android operating system-based optical disc player according to a second embodiment of the present invention. Refer below figure 2 , detailing the components of the device and the functions of each part.

[0065] Such as figure 2 As shown, the device mainly includes an Android mainboard 20, an optical disc playback device 21, and a control unit mainboard (hereinafter referred to as the MCU mainboard) 22. The functions of each part will be described in detail below.

[0066] Android motherboard 21, mainly includes a high-performance Cortex A8 processor TCC8803, large-capacity Nand flash memory, GPS module, video decoder and sound decoder. It is connected with the CD player 21 through a serial port bus, and it is connected with the MCU mainboard 22 through a serial port. It communicates with the optical disc player 21 and the MCU mainboard 22 by sending instructions.

[0067] The MCU main board 22 plays a role in...

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Abstract

The invention discloses a method and a system used for playing a vehicle-mounted compact disc and based on an Android operating system. The method includes: a starting step, a reading step and a playing step. The starting step includes: starting a Camera module in the Android operating system installed in an Android mainboard. The reading step includes that the Camera module reads audio or video information of the compact disc in a compact disc playing device connected with the Android mainboard by invoking the driving of the compact disc playing device. The playing step includes: playing the audio or video information in the Android operating system. The Camera module is used for invoking the driving of the compact disc playing device, and the compact disc in the compact disc playing device is read and played. Compared with the prior art in which the compact disc is played by adding a module of a play device specially used for playing the compact disc and the module is irrelevant to the Camera module, the method and the system can reduce research workload, and the performance of the system is optimized.

Description

technical field [0001] The invention relates to the field of operating systems, in particular to a method and system for playing a vehicle-mounted optical disc based on an Android operating system. Background technique [0002] At present, with the popularization of smart devices, the smart operating system has been greatly developed. Among them, the Android operating system is an open source operating system launched by Google. Due to its open source and open features, it is widely used as a mobile terminal. , Tablet PCs, and smart TVs and other terminal operating systems. With the increasing abundance of application programs based on the Android system, the Android operating system has also been continuously improved. [0003] At present, when using the Android operating system to play video, it is played in the form of playing video files stored on the memory card, but cannot play video files stored on the optical disc through an external device, such as: Digital Versati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B19/20G11B19/02G06F9/445
Inventor 于德涛于朋李斌夏颖胡秋立
Owner CHINA STANDARD SOFTWARE
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