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智能汽车避障路径规划与跟踪控制研究 被引量:10
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作者 吕佳 邱建岗 《机械设计与制造》 北大核心 2021年第11期166-171,共6页
为了提高智能汽车行驶安全性,提出了基于人工水滴算法的避障路径规划和自适应路径跟踪控制方法。在路径规划方面,模拟水往低处流过程,提出了基于人工水滴算法的路径规划方法,经验证,人工水滴算法在动静态环境下都能够规划出避障路径。... 为了提高智能汽车行驶安全性,提出了基于人工水滴算法的避障路径规划和自适应路径跟踪控制方法。在路径规划方面,模拟水往低处流过程,提出了基于人工水滴算法的路径规划方法,经验证,人工水滴算法在动静态环境下都能够规划出避障路径。在路径跟踪方面,设计了转向控制与速度自适应控制的综合控制器;基于车辆线性二自由度模型,提出了模型预测转向控制;结合预瞄模型和二次规划方法,提出了速度随行驶路况自适应控制方法。经绕桩实验验证,本文提出的综合控制方法最大横向跟踪误差为0.1m,文献[11]提出的控制方法最大横向误差为0.6m,是本文方法的6倍,说明了综合控制器在路径跟踪控制中的精确性,且综合控制器的横摆角速度、侧向加速度均在约束范围内,满足国家标准对车辆的安全性要求。 展开更多
关键词 智能汽车 避障路径智能规划 人工水滴算法 综合控制器
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Design and Realization of Simple Intelligent Robotic Lawn Mower Based on Arduino Mega2560 被引量:4
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作者 刘南君 毛培宏 《Agricultural Science & Technology》 CAS 2013年第1期162-165,共4页
Robotic lawn mowers available in markets are much more complicated with high cost, hence, a new robot is designed in the research. In detail, the control system is made up of Arduino Mega2560 and 11 sensors and the ro... Robotic lawn mowers available in markets are much more complicated with high cost, hence, a new robot is designed in the research. In detail, the control system is made up of Arduino Mega2560 and 11 sensors and the robot works with four wheels (two front and back wheels) driven by an electric motor. Furthermore, the platform of lawn-mowing is designed semicircle, equipped with three small high- speed and low-power electric motors; the cutting distance is determined by width of motherboard. In addition, the hardware of the system is made up of circuit control and working machines, of which the former includes a single chip unit, a wireless remote control, a sensor unit, an infrared array module, a driving module of electric motor, a display unit and a power source; the latter includes a mowing platform and a sensor window. In addition, the related software is programmed using C language and modular programming involving PWM program, Hall sensor program, liquid-crys- tal display, tilt program, supersonic sounding program, infrared obstacle-avoidance program, parking program, and remote control program. After hardware was adjust- ed, the robotic lawn mower was tested for multiple times in a standard lawn, and a satisfied effect was achieved. 展开更多
关键词 Arduino Mega2560 Path planning Intelligent obstacle-avoidance Gamutcoverage
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