發(fā)布時(shí)間：2018-03-10 04:02

  本文選題：信號(hào)燈路口　切入點(diǎn)：信號(hào)燈倒計(jì)時(shí)識(shí)別　出處：《浙江大學(xué)學(xué)報(bào)(工學(xué)版)》2017年06期 　論文類型：期刊論文

【摘要】：為了提高有信號(hào)燈路口的通行效率,將通過路口的車輛行駛狀態(tài)分為4種情況(勻速通過、加速通過、減速通過和停車等待),并針對(duì)不同情況對(duì)駕駛員提出相應(yīng)的駕駛行為提示.提出基于單一攝像頭的圖像識(shí)別系統(tǒng),該系統(tǒng)通過加權(quán)K近鄰方法識(shí)別出信號(hào)燈的顏色和倒計(jì)時(shí).根據(jù)信號(hào)燈識(shí)別結(jié)果,建立車載攝像頭與信號(hào)燈之間距離的計(jì)算模型,得到車輛與信號(hào)燈之間的距離和車輛車速.根據(jù)信號(hào)燈狀態(tài)以及距離和車速信息判斷車輛所處的行駛狀態(tài),給出合理的車速控制建議.實(shí)驗(yàn)結(jié)果表明:信號(hào)燈識(shí)別準(zhǔn)確率高于97%;速度計(jì)算的平均誤差小于5%;仿真實(shí)驗(yàn)驗(yàn)證結(jié)果表明:所提輔助駕駛方法能夠減少車輛在信號(hào)燈路口的停車等待時(shí)間,提高通行效率.
[Abstract]:In order to improve the efficiency of traffic at signalized junctions, the vehicle driving state of the crossing is divided into four situations (passing at a uniform speed, speeding through, Decelerating passing and stopping waiting, and according to different situations, the driver is given corresponding driving behavior hints. An image recognition system based on a single camera is proposed. The system recognizes the color and countdown of the signal lamp by weighted K nearest neighbor method. According to the result of the signal light recognition, the calculation model of the distance between the vehicle camera and the signal lamp is established. The distance between the vehicle and the signal light and the speed of the vehicle are obtained. The driving state of the vehicle is judged by the state of the signal light and the information of the distance and the speed of the vehicle. The experimental results show that the recognition accuracy of the signal lamp is higher than 97; the average error of speed calculation is less than 5; and the simulation results show that the proposed auxiliary driving method can reduce the vehicle signal. Waiting time at a light junction, Improve the efficiency of traffic.
【作者單位】： 吉林大學(xué)交通學(xué)院;長春工程學(xué)院機(jī)電工程學(xué)院;
【基金】：吉林省科技廳重點(diǎn)科技攻關(guān)資助項(xiàng)目(20150204052GX)
【分類號(hào)】：TP391.41;U463.6

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