Abstract: The present disclosure relates to vehicle-mounted devices and communication method. One example vehicle-mounted device in a first vehicle may obtain first position information, where the first position information indicates a position of the first vehicle. The vehicle-mounted device generates first-level information based on the first position information, where the first-level information indicates a first height level to which the position of the first vehicle belongs or a first height level to which a future driving track of the first vehicle belongs, and sends the first-level information.

Abstract: A vehicle lighting control method includes that a roadside communications device sends a first message to a vehicle. The first message prompts the vehicle to illuminate a first target, and the first target is near a travel path that the vehicle is to pass through. Before passing the first target, the vehicle adjusts the vehicle into a first lighting mode in advance based on the first message to illuminate the first target.

Abstract: A vehicle control method implemented by a first vehicle configured with at least one driver assistance system. The method includes activating a driver assistance system to an active state, applying a vehicle speed range to the first vehicle in response to the driver assistance system being in the active state, obtaining first information of a moving object near the first vehicle, determining a first parameter based on the first information, and further terminating, based on the first parameter, the active state, and setting, based on the first parameter, the first vehicle to run at a first vehicle speed beyond the vehicle speed range.

Abstract: Monitoring driving safety information before a vehicle enters a curve or when the vehicle has entered the curve; obtaining a position of the vehicle in response to the driving safety information; obtaining curve information, where the curve information includes at least one of a position of a start point of the curve and a position of an end point of the curve; and controlling, based on the position of the vehicle and the curve information, the vehicle to stop at a position outside the curve.

Abstract: This application provides a device positioning method, which is applied to a vehicle and includes: obtaining location information of at least one landmark and feature information of the at least one landmark, where the feature information includes pattern information and/or identification information; obtaining feature information of a first landmark, where the feature information of the first landmark includes pattern information and/or identification information of the first landmark, and the at least one landmark includes the first landmark; determining location information of the first landmark based on the feature information of the first landmark; and determining a location of a device based on the location information of the first landmark. According to the device positioning method provided in this application, a vehicle can be positioned without a need to equip the vehicle with a high-resolution sensing unit and excessively improve an area where the vehicle locates.