Vehicle grouping system and method based on direct communication and cellular network communication

Abstract

The invention discloses a vehicle team system based on direct communication and cellular network communication. The vehicle team system comprises a first vehicle, a second vehicle and a remote server, wherein the first vehicle and the second vehicle are respectively provided with a vehicle machine, a direct connection communication module and a cellular network communication module, and the vehicle machine is loaded with a vehicle-mounted navigation map and a human-computer interaction interface; and the remote server can be in communication connection with each vehicle through a cellular network. When the first vehicle sends a vehicle grouping request to the remote server, the remote server sends the vehicle grouping information identification code to the first vehicle; the first vehicle sends the received vehicle team information identification code to a second vehicle in communication connection with the first vehicle through a direct connection communication module or a cellular network communication module, and the second vehicle joins the vehicle team based on the received vehicle team information identification code; and after the vehicles are grouped, the first vehicle and the second vehicle share real-time vehicle information through respective direct connection communication modules or cellular network communication modules.

Description

technical field [0001] The invention relates to a vehicle communication system and method, in particular to a vehicle team communication system and method. Background technique [0002] In recent years, with the rapid development of intelligent networked vehicles, car-machine navigation, as an important vehicle-mounted device in intelligent networked vehicles, has gradually increased its installation and utilization rate. [0003] In intelligent networked vehicles, car-machine navigation functions are very rich, and its group travel function is part of the car-machine navigation map, which provides considerable convenience for customers to travel in groups. [0004] However, in the actual use process, the group travel function in the existing car-machine navigation map technology completely depends on the method of uploading / delivering the vehicle location by the background server, which cannot guarantee the timely update of the vehicle location information, and its delay is...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual use process, the group travel function in the existing car-machine navigation map technology completely depends on the method of uploading / delivering the vehicle location by the background server, which cannot guarantee the timely update of the vehicle location information, and its delay is generally > seconds 2S, it is easy to cause the following problems:

[0005] (a) The vehicle in front has changed lanes, and the vehicle behind cannot follow in time;

[0006] (b) At the intersection, the vehicle in front turns, but the vehicle behind fails to detect it in time, thus driving on the wrong road and unable to complete the turn;

[0007] (c) Due to problems such as occlusion by other vehicles, the vehicles in the nearby team cannot be found visually, and the map does not show the location of other vehicles in time, resulting in the loss of the following vehicle target;

[0008] (d) Vehicles in the map have positioning points, but there is no vehicle trajectory information, and the distance calculation with vehicles in the fleet is inaccurate

[0009] The above-mentioned problems often lead to errors in driving with cars in daily life scenarios. For example, when a self-driving caravan is driving on the highway, the car in front enters the service area, and the car behind travels in a group, because the location update is not timely and there is no advance It is easy to drive through the service area when changing lanes; another example: when several cars go to an address that is close to the departure point, the map location is not updated in time and it is easy to lose track

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