The invention relates to the technical field of vehicle-mounted electronics, and provides a vehicle-mounted playing source switching method, system and equipment. The method comprises the steps building a preset master-slave mode identifier, enabling the state of the preset master-slave mode identifier to form a fixed joint relation with a host mode, and directly obtaining master-slave attributesof a currently cached USB drive program according to the state of the master-slave mode identifier; meanwhile, directly obtaining consistency judgment of a target mode and a default connection mode byoperating the master-slave mode identifier; and then, determining whether the corresponding USB drive program needs to be reloaded or not, reducing repeated loading of the USB drive program when thetarget mode is the same as the default connection mode, and further increasing a switching speed of a vehicle-mounted playing source.

    本发明涉及车载电子技术领域,提供一种车载播放源切换方法、系统及设备,通过建立预设主从模式标识符,将其状态与主机模式形成固定的联合关系,从而可根据主从模式标识符的状态直接获取当前缓存的USB驱动程序的主从属性;同时利用对主从模式标识符的操作可直接得到目标模式与默认连接模式的一致性判断,从而得到是否要重新加载对应的USB驱动程序的判断,并且通过在目标模式与默认连接模式相同时,减少USB驱动程序的重复加载,进一步地提高车载播放源的切换速度。


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    Title :

    Vehicle-mounted playing source switching method, system and equipment


    Additional title:

    一种车载播放源切换方法、系统及设备


    Contributors:
    PEI TAO (author)

    Publication date :

    2020-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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