Bend speed early-warning method and system, and computer readable storage medium

Abstract

The invention discloses a bend speed early-warning method and system, and a computer readable storage medium. The bend speed early-warning method comprises the steps of judging whether a bend exists within a front preset distance of a vehicle traveling route according to front road condition information, calculating an early-warning distance of the bend according to the front road condition information and a real-time vehicle speed of a vehicle when determining that the bend exists within the front preset distance, comparing the early-warning distance of the bend with a distance of a current vehicle position from an entering-bend point, judging accordingly whether the vehicle enters an early-warning range, searching a matching safe vehicle speed and a comfortable vehicle speed according tothe radius of the bend in front of the vehicle if the vehicle enters the early-warning range, comparing the safe vehicle speed and the comfortable vehicle speed with a current vehicle speed, and outputting a comparison result. The bend speed early-warning method and system, and the computer readable storage medium reduce the strategy complexity and decrease the waste of resources while ensuring accurate judgment of whether the vehicle enters or exits the bend.

Description

technical field [0001] The invention belongs to the technical field of automatic driving, and in particular relates to a curve speed early warning method, system and computer-readable storage medium. Background technique [0002] At present, automobiles have been basically popularized in China. With the rapid growth of automobile demand, people's calls for automobile intelligence and driving safety are getting higher and higher. [0003] Among them, the vehicle road coordination technology based on ADAS map is an important supporting technology for road safety and automatic driving. Currently, major developed countries and regions are devoting themselves to the development and research of ADAS (Advanced Driver Assistance Systems), among which the vehicle-road coordination technology based on ADAS maps is a hotspot and cutting-edge technology in ADAS research. At present, countries all over the world are actively conducting research and experiments on the vehicle-road coordi...

AI Technical Summary

Problems solved by technology

However, most of the current speed limit reminders are only the reminders of traffic warning signs, and drivers are often more likely to ignore them due to various reasons. Driving attention, on the contrary, affects driving safety, so speed warning technology based on curve conditions is an important topic in road safety research

[0005] At present, most of the curve speed warning strategies are complicated to implement, and generally need to add cameras and other devices for image processing-based strategies, which often introduces a large communication overhead, resulting in unnecessary waste of network resources, or requires the use of infrared Sensors, ground sense coils and other equipment are not economical enough, and the establishment of excessive traffic signs is also an unnecessary waste of resources

Moreover, these curve speed warning strategies cannot efficiently predict whether there is a curve ahead of the vehicle and whether the vehicle passes through the curve, so as to give a reasonable speed limit in advance.

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