High-speed ramp speed limit identification method and device and electronic equipment

Abstract

The invention provides a high-speed ramp speed limit identification method and device and electronic equipment, which relates to the technical field of vehicle navigation. The high-speed ramp speed limit identification method comprises the following steps that firstly, road information collected by a navigation device is acquired, wherein the road information comprises a road type, and the road type is a high-speed road or a non-high-speed road; the speed limit mark information recognized by camera shooting equipment from the acquired road image is obtained, and the camera shooting speed limitvalue corresponding to the speed limit mark information is determined; the effective speed limit of the current vehicle can be determined and prompted according to the road information and the camerashooting speed limit value. According to the embodiment of the invention, a speed limit filling value based on the road type does not need to be adopted, and the requirement for the real-time performance of the road type sent by the navigation equipment is reduced, and the correct recognition rate of the ramp speed limit recognition scheme is improved, so that the risk of missing alarming and alarming by mistake can be reduced, and the driving experience of a driver can be improved.

Description

technical field [0001] The invention relates to the technical field of vehicle navigation, in particular to a method, device and electronic equipment for speed limit recognition of high-speed ramps. Background technique [0002] Ramp, also known as approach road, usually refers to a section of connecting road that provides vehicles entering and exiting the main line and adjacent auxiliary roads or other main lines, such as high-speed entrance and exit ramps, elevated entrance and exit ramps. Due to the particularity of the ramp, in order to ensure driving safety, ramp speed limit signs are usually arranged at the entrance and exit of the ramp and inside the ramp, and the speed of the vehicle is generally required to be lower than 40km / h. [0003] Among the types of speed limit information that can be detected by the navigation detection system, the speed limit information based on road types, such as the speed limit of expressways is 120km / h, and the speed limit of provincia...

AI Technical Summary

Problems solved by technology

The above two situations will cause the existing ramp judgment strategy to fail to obtain effective judgment basis, especially when the navigation path is closed

[0004] To sum up, the existing highway ramp judgment strategy needs to be based on the road type sent by the navigation, and the speed limit information based on the road type, and the current navigation detection system cannot provide accurate and timely judgment basis, resulting in the current navigation detection system and The correct recognition rate of the high-speed road ramp speed limit recognition scheme based on the data fusion of the camera detection system is not high, and there are risks of missed and false positives, which affect the driving experience of the driver

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