Pedestrian anti-collision early warning method based on recognition of braking and accelerating intention of driver

Abstract

The invention discloses a pedestrian anti-collision early warning method based on recognition of the braking and accelerating intention of a driver. The method comprises the following steps: i, experimental data are collected for first-time off-line training of a hidden Markov model (HMM); ii, experimental data are collected for second-time off-line training of the HMM; iii, a data signal about the intention of the driver to avoid collisions with pedestrians is recognized; iv, data analysis is conducted in combination with an infrared human body induction data signal after the data signal about the intention of the driver to avoid collisions with the pedestrians is recognized, and different types of early warning processing are conducted. According to the pedestrian anti-collision early warning method based on recognition of the braking and accelerating intention of the driver, the pedestrians and vehicles serve as a system for studies, a corresponding early warning is given to the driver by means of analyzing the manipulative behavior and strategy which the driver may take when the pedestrians are in front of a car which the driver is driving and judging whether a risk exists according to the driving behavior and intention of the driver, and the early warning is given when the driver conducts wrong driving operation, for example, the driver treads on an accelerator pedal by mistake. As a result, the safety of the pedestrians is effectively protected, and the active safety performance of the car is improved.

Description

technical field [0001] The invention relates to the field of automobile active safety, in particular to a pedestrian anti-collision early warning method based on recognition of driver's braking and acceleration intentions. Background technique [0002] In road traffic accidents, pedestrians are often the biggest victim group, and collisions between cars and pedestrians are one of the main types of accidents. According to the U.S. Highway Traffic Safety Administration statistics, in 2011, 69,000 pedestrians were injured due to traffic accidents in the United States, accounting for 3% of the total number of injuries; 4,432 pedestrians were killed, accounting for 14% of the total number of deaths. In road traffic accidents in the European Union, the death data of pedestrians is 9 times that of occupants in vehicles, and the death data of cyclists is 8 times that of occupants in vehicles. In 2010, 16,281 pedestrians were killed and 44,629 were injured due to traffic accidents i...

AI Technical Summary

Problems solved by technology

[0003] The current research on driver behavior mainly focuses on the detection and supervision of a certain dangerous driving behavior, without using environmental information to comprehensively consider the driver's driving behavior and intention, ignoring the driver's intention and its changing trend in active safety control. It is easy to make a wrong estimate of the current road danger situation

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