Vehicle warning method and related apparatus

A vehicle-mounted device, comprising:

• a memory configured to store a program;
• and
• a processor configured to execute the program, when the program is executed by the processor, the processor causes the vehicle-mounted device to:
• receive, by a vehicle-to-everything (V2X) device, a V2X message corresponding to a first vehicle;
• determine, based on vehicle information of a second vehicle and the vehicle information comprises at least position information of the second vehicle and a vehicle size of the second vehicle, a warning area;
• determine, by the V2X device based on the V2X message, whether the first vehicle is in the warning area, and
• output, by the V2X device, warning information corresponding to the first vehicle to the second vehicle.

A server for vehicle warning, comprising:

• a processor;
• and
• a memory including computer-executable instructions which, when executed by the processor, cause the processor to:
• receive vehicle information of a second vehicle sent by a vehicle-mounted device, wherein the vehicle information comprises at least position information of the second vehicle and a vehicle size of the second vehicle;
• determine a current spatial position of the second vehicle based on the position information of the second vehicle, and determine a warning area of the second vehicle based on the current spatial position of the second vehicle and the vehicle size;
• and
• transmit the warning area to the vehicle-mounted device, so that the vehicle-mounted device is enabled to determine, based on a vehicle-to-everything V2X message of a first vehicle, whether the first vehicle is the warning area, and output warning information.