Automobile speed safety early warning method and system based on big data

Abstract

The invention provides an automobile speed safety early warning method and system based on big data and an automobile. The method comprises the steps: identifying whether the current vehicle speed isoverspeed or not under the condition of identifying that a speed limit sign and a speed measuring device exist on the current road; if overspeed exists at the speed measuring position, recording the overspeed information, and comparing the overspeed information with traffic violation information recorded by the vehicle afterwards to judge whether the speed measuring device is started or not so asto provide prompt information about whether the speed measuring device is started or not for other vehicles passing through the position where the speed measuring device is located; therefore, driverspassing through the road section can be familiar with the road condition in advance, and the traffic danger caused by emergency deceleration when the drivers meet the speed measuring device due to the fact that the drivers are not familiar with the road condition is avoided.

Description

technical field [0001] The present application relates to the technical field of the present invention involving big data and vehicle speed safety warning, in particular to a method and system for vehicle speed safety warning based on big data, and a vehicle. Background technique [0002] In order to ensure the personal and property safety of traffic participants, vehicle speed measurement in road traffic has been widely used in real life. There are two main methods for vehicle speed measurement. One is correlation speed measurement, which uses the cross-correlation principle in random process theory to measure speed. It is a modern speed measurement method developed based on signal acquisition technology and sensor technology. It is different from traditional speed measurement methods. Compared with it, its anti-interference ability is stronger, and it can accurately measure the velocity of the information body under complex interference conditions. The anti-interference ...

AI Technical Summary

Problems solved by technology

The second method of automobile speed measurement: LDA technology shows its superiority especially for fluid dynamics research, but in the measurement of solid surface speed, the application of LDA technology is not common, and such products have not even been seen in China. At the same time, Since the LDA photoelectric signal type is greatly affected by the optical system parameters, the particle situation in the fluid, and the flow state, the structure of the signal processor is various, and its performance is very high. These are the limitations of the LDA technology. sex

[0003] In the existing technology, the vehicle speed measurement technology in road traffic has been relatively mature, thus ensuring the personal and property safety of drivers and passengers to a large extent; however, with the continuous acceleration of urbanization, the mileage of newly built roads continues to increase , the number of car ownership is also steadily increasing year by year, all of which pose challenges to the personal and property safety of road traffic participants

Especially in the case of imperfect supporting equipment on newly built roads, higher driving skill requirements are put forward for drivers who are not familiar with road conditions; for example, when drivers drive to unfamiliar or newly built road sections, often Driving behaviors that seriously endanger road traffic safety, such as sudden braking caused by inaccurate and untimely judgment of illegal capture equipment such as speed measurement

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