• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (6): 173-184.doi: 10.3901/JME.2023.06.173

• 运载工程 • 上一篇    下一篇

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增强现实辅助的互认知人机安全交互系统

郑湃1,2, 李成熙1, 殷悦1, 张荣3, 鲍劲松3, 王柏村4, 谢海波4, 王力翚5   

  1. 1. 香港理工大学工业及系统工程系 香港 999077;
    2. 香港理工大学深圳研究院 深圳 518057;
    3. 东华大学机械工程学院 上海 201620;
    4. 浙江大学机械工程学院 杭州 310058;
    5. 瑞典皇家理工学院 斯德哥尔摩 SE-11428 瑞典
  • 收稿日期:2022-03-29 修回日期:2022-12-21 出版日期:2023-03-20 发布日期:2023-06-03
  • 通讯作者: 郑湃(通信作者),男,1988年出生,博士,助理教授,博士研究生导师。主要研究方向为人机协作制造,智能产品服务系统和工业数字化服务。E-mail:pai.zheng@polyu.edu.hk
  • 作者简介:李成熙,男,1994年出生,博士研究生。主要研究方向为强化学习,机器人学习,增强/虚拟现实,多智能体制造系统。E-mail:chengxi.li@connect.polyu.hk
  • 基金资助:
    国家自然科学基金(52005424, 52205542)、香港研究资助局General Research Fund (15210222)、香港创新科技署AIR@InnoHK创新平台 (AiDLab-RP2-1)和江苏省政策引导类计划(港澳台科技合作)(BZ2020049)资助项目。

Augmented Reality-assisted Mutual Cognitive System for Human-Robot Interaction Safety Concerns

ZHENG Pai1,2, LI Chengxi1, YIN Yue1, ZHANG Rong3, BAO Jinsong3, WANG Baicun4, XIE Haibo4, WANG Lihui5   

  1. 1. Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong 999077;
    2. The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057;
    3. College of Mechanical Engineering, Donghua University, Shanghai 201620;
    4. School of Mechanical Engineering, Zhejiang University, Hangzhou 310058;
    5. KTH Royal Institute of Technology, Stockholm SE-11428, Sweden
  • Received:2022-03-29 Revised:2022-12-21 Online:2023-03-20 Published:2023-06-03

摘要: 在现代制造业中,人和机器人的交互共融是制造智能化的焦点问题之一。在人机交互中,机器人对工人的伤害风险是影响安全生产的关键因素。然而,在动态、不确定性的人机交互环境中,目前的人机安全交互系统仍然是基于机器人对环境的感知实现被动避让,缺乏基于互认知的自适应决策。为提高人对环境的认知能力,并增强机器人的自主避让和自适应能力,设计并实现了一种基于可穿戴增强现实技术的互认知人机安全交互系统。其中,可穿戴增强现实设备作为人机交互的媒介,实现机器人的虚实注册和工作环境的虚拟映射,收集人、机器人和作业空间的信息,实时为操作人员和机器人提供互认知辅助。互认知人机安全交互系统从三个方面确保人机安全:根据人机距离的机器人速度控制和安全区域可视化;虚实映射的运动预览和碰撞检测;基于深度强化学习的机器人避障策略。最后,通过搭建原型系统验证了所提出系统设计方法的可行性,以期促进先进人工智能技术与人机交互技术的融合发展,实现人机共融、安全协作。

关键词: 智能制造, 人机交互, 增强现实, 强化学习, 安全策略

Abstract: In modern manufacturing, the interaction and symbiosis between humans and the industrial robot are one of the foci of smart manufacturing. During human-robot interaction(HRI), the potential risk of any injury to workers caused by industrial robots is very critical and should be well-addressed to ensure manufacturing safety. However, in the dynamic and uncertain manufacturing environment, the current HRI safety is still based on the robot's perception of the environment to achieve collision avoidance, lacking adaptable decision-makings under mutual cognition. Therefore, to enhance the cognition of human operators in the working environment and improve the robot's collision avoidance and adaptive motion planning capabilities, this work designs and further implements a mutual cognitive HRI safety system based on augmented reality (AR) in a wearable manner. In the proposed system, the wearable AR device serves as the bridging interface to realize the virtual-real registration of the robot, the virtual-physical mapping of the working environment of the HRI process, and to collect the information of human, robot, and working space. In addition to these, a hierarchical HRI safety strategy is introduced for real-time mutual cognitive assistance to both humans and robots, namely: 1) robot motion speed control and safety area visualization based on human-robot distance, 2) virtual-physical mapping for robot motion preview and collision detection, and 3) deep reinforcement learning-driven motion planning for collision avoidance strategies generation. Lastly, a prototype system is further developed to validate the feasibility and effectiveness of the proposed strategies. By leveraging advanced artificial intelligence and human-robot interaction technologies, it is envisioned this work can bring insightful safety protection mechanisms to better achieve symbiotic human-robot collaboration.

Key words: smart manufacturing, human-robot interaction, augmented reality, reinforcement learning, safety strategy

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