Vehicle forward collision warning method based on vehicle networking technology

Abstract

The invention discloses a vehicle forward collision warning method based on a vehicle networking technology. The method includes the following steps: (1) collecting real-time data through a vehicle-mounted terminal device; (2) adjusting a dynamic threshold value: adjusting the value of a dynamic regulation factor of vehicles according to vehicle disposition information, driver information, sensor information, real-time positions of the vehicles and road types; (3) calculating the theoretical safe distance S(safe) between two vehicles, wherein V(sv) is a vehicle speed acquired through a CAN bus, T(r) is the dynamic regulation factor, V(rel) is the absolute value of the relative speed of the two vehicles, TTC is a time from the current time to a collision time, and the time can be configured through the vehicle-mounted terminal device so as to reflect the warning sensitivity level of the system; (4) carrying out judgment and warning: comparing the theoretical safe distance with a real vehicle distance acquired by a distance measuring sensor, and sending out warning information if the real vehicle distance is smaller than the theoretical safe distance. The method guarantees objectivity and accuracy of a calculation model to the maximum and avoids rear-end collisions most accurately.

Description

technical field

[0001] The invention relates to the field of traffic safety, in particular to a vehicle forward collision avoidance alarm method based on Internet of Vehicles technology. Background technique

[0002] According to the survey data of the U.S. National Highway Traffic Safety Administration (NHTSA), traffic accidents caused by rear-end collisions account for more than 28% of all traffic accidents worldwide. At the same time, the statistical results of the German Volkswagen Company on the causes of rear-end collision accidents in Europe over the years show that about 45% of the accidents are caused by the driver's misjudgment of the inter-vehicle distance or relative speed.

[0003] Forward Collision Warning System (FCWS) is an advanced vehicle electronic safety system, its main function is to send a reminder to the driver when there is a potential collision risk between the own vehicle and the vehicle in front , to avoid traffic accidents caused by rear-end col...

Examples

Embodiment Construction

[0021] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0022] The present invention relates to a vehicle forward collision avoidance warning method based on Internet of Vehicles technology, comprising:

[0023] ① Vehicle-mounted terminal equipment collects real-time data: the vehicle-mounted terminal equipment directly obtains vehicle configuration information, collects vehicle current status information and sensor information in real time through the CAN bus, obtains vehicle latitude and longitude coordinate information through satellite positioning, and then communicates with the background management center to Determine the real-time location of the vehicle and the current road environment information, and obtain driver information through identity authentication technology and communication with the background management center; specifically, the vehicle termina...

technical field

[0001] The invention relates to the field of traffic safety, in particular to a vehicle forward collision avoidance alarm method based on Internet of Vehicles technology. Background technique

[0002] According to the survey data of the U.S. National Highway Traffic Safety Administration (NHTSA), traffic accidents caused by rear-end collisions account for more than 28% of all traffic accidents worldwide. At the same time, the statistical results of the German Volkswagen Company on the causes of rear-end collision accidents in Europe over the years show that about 45% of the accidents are caused by the driver's misjudgment of the inter-vehicle distance or relative speed.

[0003] Forward Collision Warning System (FCWS) is an advanced vehicle electronic safety system, its main function is to send a reminder to the driver when there is a potential collision risk between the own vehicle and the vehicle in front , to avoid traffic accidents caused by rear-end col...

Examples

Embodiment Construction

[0021] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0022] The present invention relates to a vehicle forward collision avoidance warning method based on Internet of Vehicles technology, comprising:

[0023] ① Vehicle-mounted terminal equipment collects real-time data: the vehicle-mounted terminal equipment directly obtains vehicle configuration information, collects vehicle current status information and sensor information in real time through the CAN bus, obtains vehicle latitude and longitude coordinate information through satellite positioning, and then communicates with the background management center to Determine the real-time location of the vehicle and the current road environment information, and obtain driver information through identity authentication technology and communication with the background management center; specifically, the vehicle termina...