| CPC G08G 1/164 (2013.01) [G08G 1/0112 (2013.01); G08G 1/0129 (2013.01); G08G 1/0133 (2013.01); G08G 1/0141 (2013.01); G08G 1/0145 (2013.01); G08G 1/052 (2013.01); G08G 1/166 (2013.01)] | 19 Claims |
|
1. A traffic warning method, performed by a computing device, the method comprising:
receiving, by the computing device embedded in a host vehicle, driving status information of a peer vehicle on a target road transmitted by the peer vehicle based on a wireless communication protocol, wherein the peer vehicle includes vehicles on the target road and in a vicinity of the host vehicle and is classified into a first type vehicle and a second type vehicle, the first type vehicle comprising at least one of: a chartered vehicle engaged in tourism, a bus-line vehicle, or a road vehicle for transporting hazardous chemicals, fireworks and firecrackers, or civilian explosives, the second type vehicle being a vehicle that is not the charted vehicle engaged in tourism, the bus-line vehicle, or the road vehicle for transporting hazardous chemicals, fireworks and firecrackers, or civilian explosives;
obtaining pavement status information of the target road;
determining potential collision strength of the peer vehicle against the host vehicle according to driving status information of the host vehicle on the target road, the driving status information of the peer vehicle, and the pavement status information of the target road, wherein a determination model for the potential collision strength of the first type vehicle being the same as a determination model for a potential collision strength of the second type vehicle;
updating the potential collision strength of the first type vehicle against the host vehicle according to a difference between a performance parameter of the first type vehicle and a performance parameter of the second type vehicle on the target road, to obtain a corrected collision strength of the first type vehicle against the host vehicle; and
performing traffic warning according to the corrected potential collision strength of the first type vehicle against the host vehicle,
wherein the potential collision strength of the first type vehicle against the host vehicle is updated based on at least a difference between a communication delay between the first type vehicle and the host vehicle and a communication delay between the second type vehicle and the host vehicle, and the communication delay between the host first vehicle and the peer vehicle is obtained by:
receiving, by the host vehicle, first information from the peer vehicle, the first information including a first timestamp indicating a moment that the peer vehicle transmits the first message;
transmitting, by the host vehicle, second information to the peer vehicle, the second information including a second timestamp indicating a moment when the host vehicle receives the first information and a third timestamp indicating a transmitting moment of the second information; and
receiving, by the host vehicle, a communication delay from the peer vehicle, the communication delay being determined based on the first timestamp, the second timestamp, and the third timestamp,
wherein: after the corrected potential collision strength of the first type vehicle against the host vehicle is obtained by updating the potential collision strength of the first type vehicle against the host vehicle based on the communication delay between the first type vehicle and the host vehicle, in response to the corrected potential collision strength being greater than the first threshold, the traffic warning is performed; and in response to the corrected potential collision strength being not greater than the first threshold, the traffic warning is not performed.
|