METHOD AND SYSTEM FOR CONTROLLING VEHICLE-MOUNTED ELECTRICAL DEVICE

A method and system for controlling a vehicle-mounted electrical device, a computer-readable storage medium, and a computer device are provided. The method includes: acquiring, by a detection and control circuit, a real-time voltage of a power source and determining, by the detection and control circuit, a type of the power source through comparing the real-time voltage with a criterion voltage, wherein the detection and control circuit acquires the real-time voltage in a wired manner or in a wireless manner; invoking a charge control range corresponding to the type of the power source, and determining whether an alarm is required and whether to control a power supply to an electrical apparatus based on a relationship between the charge control range and a real-time remaining charge of the power source.