计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
3期
227-231
,共5页
詹盛%徐远新%石涌泉%王畅%张亚岐
詹盛%徐遠新%石湧泉%王暢%張亞岐
첨성%서원신%석용천%왕창%장아기
车辆轨迹%预测%模糊%Petri网
車輛軌跡%預測%模糊%Petri網
차량궤적%예측%모호%Petri망
vehicle trajectory%prediction%fuzzy%Petri net
车辆运动轨迹的准确预测可以对潜在交通冲突进行实时有效预测,并为解决交通冲突提供最佳策略。以真车实验数据为基础,分析车辆运动轨迹的影响因素,建立车辆运动轨迹方程,根据坐标变换以及各个方程变量参数之间的转换关系,将车速纵向和横向加速度、车身侧倾角以及俯仰角速度作为模型输入,构建论域以及隶属度函数。此外,根据车辆不可能在较短时间内状态发生急剧变化建立相应的模糊规则,建立模糊着色Petri网模型,对车辆运动轨迹进行预测。以真实路车实验数据对模型进行训练与测试,测试结果表明该Petri网模型能够对短时长内的车辆运动轨迹进行有效预测。
車輛運動軌跡的準確預測可以對潛在交通遲突進行實時有效預測,併為解決交通遲突提供最佳策略。以真車實驗數據為基礎,分析車輛運動軌跡的影響因素,建立車輛運動軌跡方程,根據坐標變換以及各箇方程變量參數之間的轉換關繫,將車速縱嚮和橫嚮加速度、車身側傾角以及俯仰角速度作為模型輸入,構建論域以及隸屬度函數。此外,根據車輛不可能在較短時間內狀態髮生急劇變化建立相應的模糊規則,建立模糊著色Petri網模型,對車輛運動軌跡進行預測。以真實路車實驗數據對模型進行訓練與測試,測試結果錶明該Petri網模型能夠對短時長內的車輛運動軌跡進行有效預測。
차량운동궤적적준학예측가이대잠재교통충돌진행실시유효예측,병위해결교통충돌제공최가책략。이진차실험수거위기출,분석차량운동궤적적영향인소,건립차량운동궤적방정,근거좌표변환이급각개방정변량삼수지간적전환관계,장차속종향화횡향가속도、차신측경각이급부앙각속도작위모형수입,구건론역이급대속도함수。차외,근거차량불가능재교단시간내상태발생급극변화건립상응적모호규칙,건립모호착색Petri망모형,대차량운동궤적진행예측。이진실로차실험수거대모형진행훈련여측시,측시결과표명해Petri망모형능구대단시장내적차량운동궤적진행유효예측。
The accurate prediction of vehicle trajectory can predicate the potential traffic conflict in real time and provide the best strategy to solve the traffic conflicts. The influence factors of vehicle trajectory are analyzed and the vehicle trajectory equations are established. According to the coordinate transformation and the relationship between variable parameters of each equation, the longitudinal and lateral acceleration are taken as model inputs and the domain of discourse and the membership functions are determined. In addition, the corresponding fuzzy rules are established on the basis of the fact that the states of vehicle may not change in a relatively short time. The colored fuzzy Petri net model is established to predict the vehicle trajectory. The real experimental data are used to train and test the model and the results show that the Petri net model can effectively predict vehicle trajectory within a short time.