School of Automotive Engineering, Wuhan University of Technology, Wuhan City, PR. China.
PLoS One. 2023 Feb 2;18(2):e0281294. doi: 10.1371/journal.pone.0281294. eCollection 2023.
The development of science and technology continues to promote the progress of society. The current intelligence and automation technology has become widely used in society. To this end, this study proposes a vehicle intelligent control system based on edge computing and deep learning to promote the far-reaching development of intelligent technology and automation technology. First, control algorithms are used to design a switch control strategy combining accelerator and brake. Second, a fuzzy control algorithm based on vehicle tracking and trajectory deviation is designed to enhance the vehicle's stability during steering. A Convolutional Neural Network (CNN) is used to recognize the car's surroundings as it drives. In addition, accelerator and brake controllers and vehicle tracking and trajectory deviation controllers are connected to the vehicle's wiring. Then, the data transmission function based on edge computing is applied to the vehicle's intelligent control system. Finally, trajectory tracking and emergency braking experiments are carried out on the control system to verify the practicability and reliability of the method and the effectiveness of CNN. The simulation experiments are carried out on two states of medium speed and high speed to verify the effectiveness of the longitudinal anti-collision system of the test vehicle when the target vehicle suddenly decelerates. The results demonstrate that the driving speed of the experimental vehicle is set to 50km/h, the distance between the experimental vehicle and the target vehicle is 40m, and the target vehicle in front drives at a constant speed of 50km/h. The target vehicle in front of the car suddenly decelerates in 5 seconds, and the speed drops to 0 after 5 seconds. The actual distance between the experimental vehicle and the target vehicle is very close to the expected safe space, and the experimental vehicle is in a safe state during this process. When the experimental vehicle starts to decelerate, the experimental vehicle adopts emergency deceleration to ensure a safe distance between the two vehicles. At this time, the car enters the second-level early warning state, but driving safety can still be guaranteed. It is advisable to maintain low-speed emergency braking in this state. This study provides creative research ideas for the follow-up research on the intelligent control system of uncrewed vehicles and contributes to the development of intelligence and automation technology.
科技的发展不断推动社会的进步。当前的智能和自动化技术已经在社会中得到广泛应用。为此,本研究提出了一种基于边缘计算和深度学习的车辆智能控制系统,以推动智能技术和自动化技术的深远发展。首先,利用控制算法设计了一种结合油门和刹车的开关控制策略。其次,设计了一种基于车辆跟踪和轨迹偏差的模糊控制算法,以增强车辆转向时的稳定性。卷积神经网络(CNN)用于识别车辆行驶时的周围环境。此外,将油门和刹车控制器以及车辆跟踪和轨迹偏差控制器连接到车辆的线束上。然后,将基于边缘计算的数据传输功能应用于车辆智能控制系统。最后,对控制系统进行轨迹跟踪和紧急制动实验,以验证该方法的实用性和可靠性以及 CNN 的有效性。在中高速两种状态下进行仿真实验,验证测试车的纵向防碰撞系统在目标车突然减速时的有效性。实验结果表明,实验车的行驶速度设定为 50km/h,实验车与目标车的距离为 40m,前方目标车以 50km/h 的恒定速度行驶。前方目标车在 5 秒内突然减速,5 秒后速度降至 0。实验车与目标车的实际距离非常接近预期的安全空间,实验车在整个过程中处于安全状态。当实验车开始减速时,实验车采用紧急减速以确保两车之间的安全距离。此时,实验车进入二级预警状态,但仍能保证行车安全。在这种状态下,建议保持低速紧急制动。本研究为无人车智能控制系统的后续研究提供了创新性的研究思路,为智能和自动化技术的发展做出了贡献。