论文部分内容阅读
为了解高原公路线形对驾驶员肌电特性影响,寻求提高行车安全途径以及今后道路线形设计参考依据。通过在新疆帕米尔高原G314路段进行驾驶员行车试验,利用生物反馈仪提取受测驾驶员肌电信号,利用频域分析方法选取平均功率频率(MPF)作为测评指标,定量分析其在海拔与道路线形影响下的变化规律,同时建立关系模型。分析结果表明:驾驶员颈部MPF会随着海拔的升高而减小;平曲线半径逐渐减小的路段上,驾驶员颈部MPF会减小,而纵坡度变化对MPF的影响并不显著;线形组合值增大会导致驾驶员颈部MPF减小;海拔与线形组合值共同影响下,驾驶员颈部MPF变化明显,海拔越高、线形组合值越大,驾驶员颈部MPF越小。
In order to understand the influence of the plateau road shape on the EMG performance of drivers, seeking ways to improve traffic safety and reference basis for road alignment design in future. The driver’s driving test was carried out in G314 section of Pamirs in Xinjiang. The biofeedback device was used to extract the EMG signals from the tested driver. The frequency domain analysis method was used to select the average power frequency (MPF) as the evaluation index. Linear under the influence of changes in law, while establishing a relationship model. The results show that the MPF of the driver’s neck decreases with the altitude increasing. On the section where the radius of the curve decreases gradually, the MPF of the driver’s neck decreases, while the longitudinal gradient does not affect the MPF significantly The MPF of the driver’s neck decreases with the increase of the linear combination value. Under the combined effect of altitude and linear combination, the MPF of the driver’s neck changes obviously. The higher the elevation is, the greater the linear combination value is, and the MPF at the driver’s neck is smaller.