State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
Nat Commun. 2022 Mar 18;13(1):1446. doi: 10.1038/s41467-022-29197-5.
Noncontact human-machine interaction provides a hygienic and intelligent approach for the communication between human and robots. Current noncontact human-machine interactions are generally limited by the interaction distance or conditions, such as in the dark. Here we explore the utilization of hand as an infrared light source for noncontact human-machine interaction. Metallic gratings are used as the human-machine interface to respond to infrared radiation from hand and the generated signals are visualized as different infrared structural colors. We demonstrate the applications of the infrared structural color-based human-machine interaction for user-interactive touchless display and real-time control of a robot vehicle. The interaction is flexible to the hand-interface distance ranging from a few centimeters to tens of centimeters and can be used in low lighting condition or in the dark. The findings in this work provide an alternative and complementary approach to traditional noncontact human-machine interactions, which may further broaden the potential applications of human-machine interaction.
非接触式人机交互为人机交互提供了一种卫生且智能的方式。当前的非接触式人机交互通常受到交互距离或条件的限制，例如在黑暗中。在这里，我们探索了利用手作为红外光源进行非接触式人机交互。金属光栅被用作人机界面，以响应来自手的红外辐射，并且所产生的信号被可视化作为不同的红外结构色。我们展示了基于红外结构色的人机交互在用户交互式非接触式显示和机器人车辆的实时控制中的应用。该交互对从几厘米到几十厘米的人机界面距离具有灵活性，并且可以在低光照条件下或在黑暗中使用。这项工作的发现为传统非接触式人机交互提供了一种替代和补充的方法，这可能进一步拓宽人机交互的潜在应用。
