Vehicle-mounted device and control method

The invention provides a vehicle-mounted device. The vehicle-mounted device comprises a single-chip microcomputer system and a core processor system, wherein the single-chip microcomputer system is connected with an ACC signal line; and the single-chip microcomputer system is used for detecting an ACC signal transmitted by the ACC signal line when the core processor system is abnormal, cutting off a power supply of the core processor system when the detected ACC signal reaches a preset frequency, and powering on the core processor system again to restart the core processor system. The invention furthermore provides a control method. According to the vehicle-mounted device and the control method provided by the invention, a convenient and simple restart service is provided for a user, so that the user operation time is shortened. 本发明提供种车载设备，该车载设备包括：单片机系统、核心处理器系统，所述单片机系统与ACC信号线相连，所述单片机系统，用于当所述核心处理器系统处于异常情况时，检测所述ACC信号线传输的ACC信号，当检测到的所述ACC信号达到预设次数时，切断所述核心处理器系统的电源，并对所述核心处理器系统重新上电，重启所述核心处理器系统。本发明还提供种控制方法。本发明提供的车载设备及