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为了解高原公路驾驶员颈部疲劳状况,寻求减轻驾驶员疲劳途径。选取新疆帕米尔高原典型路段进行实驾试验,通过生物反馈仪获取受测驾驶员颈部肌电数据,利用时域与频域分析方法选取积分肌电值(IEMG)与中值频率(MF)作为评价指标,研究高原公路驾驶员颈部肌肉IEMG与MF在连续驾驶时间、海拔作用下的疲劳特性。研究表明:连续驾驶时间、海拔是影响驾驶员IEMG、MF的主要因素。随着驾驶时间增长与海拔逐渐升高,驾驶员IEMG有上升趋势,而MF有下降趋势,表明高原公路驾驶员从低海拔到高海拔路段长时间连续驾驶车辆导致颈部疲劳感增加。通过对比不同行车经历驾驶员,发现经常出入高原公路驾驶员的颈部疲劳度与自我缓解能力要优于首次进入高原公路行驶车辆的驾驶员。
In order to understand the driver’s neck fatigue on the plateau, seek ways to reduce driver fatigue. Take the typical road section of Pamirs in Xinjiang as an example, real-time driving test is carried out. The electromyographic data of the driver’s neck is obtained through the biofeedback instrument. IEMG and MF are selected by time- and frequency- As an evaluation index, the fatigue characteristics of IEMG and MF in the neck muscle of drivers on the plateau were studied under continuous driving time and altitude. Research shows that continuous driving time and altitude are the main factors affecting driver IEMG and MF. With the increase of driving time and altitude, driver IEMG has an upward trend and MF has a downward trend, indicating that the fatigue of the neck caused by continuous driving of vehicles on the plateau from low altitude to high altitude for a long time. By comparing drivers with different driving experiences, it is found that the neck fatigue and self-mitigation ability of pilots who travel frequently to and from the highland road are superior to those who first entered the highland road.