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Visual route following for tiny autonomous robots 微型自主机器人的视觉路线跟踪
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-07-17 DOI: 10.1126/scirobotics.adk0310
Tom van Dijk, Christophe De Wagter, Guido C. H. E. de Croon
Navigation is an essential capability for autonomous robots. In particular, visual navigation has been a major research topic in robotics because cameras are lightweight, power-efficient sensors that provide rich information on the environment. However, the main challenge of visual navigation is that it requires substantial computational power and memory for visual processing and storage of the results. As of yet, this has precluded its use on small, extremely resource-constrained robots such as lightweight drones. Inspired by the parsimony of natural intelligence, we propose an insect-inspired approach toward visual navigation that is specifically aimed at extremely resource-restricted robots. It is a route-following approach in which a robot’s outbound trajectory is stored as a collection of highly compressed panoramic images together with their spatial relationships as measured with odometry. During the inbound journey, the robot uses a combination of odometry and visual homing to return to the stored locations, with visual homing preventing the buildup of odometric drift. A main advancement of the proposed strategy is that the number of stored compressed images is minimized by spacing them apart as far as the accuracy of odometry allows. To demonstrate the suitability for small systems, we implemented the strategy on a tiny 56-gram drone. The drone could successfully follow routes up to 100 meters with a trajectory representation that consumed less than 20 bytes per meter. The presented method forms a substantial step toward the autonomous visual navigation of tiny robots, facilitating their more widespread application.
导航是自主机器人的一项基本能力。特别是,视觉导航一直是机器人学的一个重要研究课题,因为摄像头是一种轻便、省电的传感器,能提供丰富的环境信息。然而,视觉导航的主要挑战在于它需要大量的计算能力和内存来进行视觉处理和结果存储。到目前为止,这种方法还不能用于资源极其有限的小型机器人,如轻型无人机。受自然智能的简约性启发,我们提出了一种受昆虫启发的视觉导航方法,专门用于资源极其有限的机器人。这是一种路线跟踪方法,其中机器人的出境轨迹被存储为高度压缩的全景图像集合,以及用里程计测量的空间关系。在进站过程中,机器人结合使用轨迹测量和视觉归位来返回存储的位置,其中视觉归位可防止轨迹漂移的积累。所提策略的一个主要进步是,在测距精度允许的范围内,将存储的压缩图像间隔开来,从而最大限度地减少了压缩图像的数量。为了证明该策略适用于小型系统,我们在一架重 56 克的小型无人机上实施了该策略。该无人机可以成功跟踪长达 100 米的路线,其轨迹表示每米消耗的字节数不到 20 个。所提出的方法向微型机器人的自主视觉导航迈出了实质性的一步,促进了其更广泛的应用。
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引用次数: 0
Scale-inspired programmable robotic structures with concurrent shape morphing and stiffness variation 同时具有形状变形和刚度变化的规模启发式可编程机器人结构。
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-07-17 DOI: 10.1126/scirobotics.adl0307
Tianyu Chen, Xudong Yang, Bojian Zhang, Junwei Li, Jie Pan, Yifan Wang
Biological organisms often have remarkable multifunctionality through intricate structures, such as concurrent shape morphing and stiffness variation in the octopus. Soft robots, which are inspired by natural creatures, usually require the integration of separate modules to achieve these various functions. As a result, the whole structure is cumbersome, and the control system is complex, often involving multiple control loops to finish a required task. Here, inspired by the scales that cover creatures like pangolins and fish, we developed a robotic structure that can vary its stiffness and change shape simultaneously in a highly integrated, compact body. The scale-inspired layered structure (SAILS) was enabled by the inversely designed programmable surface patterns of the scales. After fabrication, SAILS was inherently soft and flexible. When sealed in an elastic envelope and subjected to negative confining pressure, it transitioned to its designated shape and concurrently became stiff. SAILS could be actuated at frequencies as high as 5 hertz and achieved an apparent bending modulus change of up to 53 times between its soft and stiff states. We further demonstrated both the versatility of SAILS by developing a soft robot that is amphibious and adaptive and tunable landing systems for drones with the capacity to accommodate different loads.
生物有机体通常通过复杂的结构具有显著的多功能性,例如章鱼同时具有形状变形和硬度变化的功能。受自然生物启发的软体机器人通常需要整合不同的模块来实现这些不同的功能。因此,整体结构复杂,控制系统复杂,往往需要多个控制回路才能完成所需的任务。在此,我们从覆盖在穿山甲和鱼类等生物身上的鳞片中汲取灵感,开发出一种机器人结构,它可以在高度集成的紧凑机体中同时改变硬度和形状。这种受鳞片启发的分层结构(SAILS)由鳞片的可编程表面图案反向设计实现。制作完成后,SAILS 本身就柔软而富有弹性。当将其密封在弹性封套中并承受负压时,它就会转变为指定的形状,同时变得坚硬。SAILS 可在高达 5 赫兹的频率下驱动,在软态和硬态之间的表观弯曲模量变化高达 53 倍。我们还开发了一种两栖软体机器人,进一步证明了 SAILS 的多功能性,并为无人机开发了可适应不同负载的自适应可调着陆系统。
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引用次数: 0
When performing actions with robots, attribution of intentionality affects the sense of joint agency 在与机器人共同完成动作时,意向性归属会影响共同代理感。
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adj3665
Uma Prashant Navare, Francesca Ciardo, Kyveli Kompatsiari, Davide De Tommaso, Agnieszka Wykowska
Sense of joint agency (SoJA) is the sense of control experienced by humans when acting with others to bring about changes in the shared environment. SoJA is proposed to arise from the sensorimotor predictive processes underlying action control and monitoring. Because SoJA is a ubiquitous phenomenon occurring when we perform actions with other humans, it is of great interest and importance to understand whether—and under what conditions—SoJA occurs in collaborative tasks with humanoid robots. In this study, using behavioral measures and neural responses measured by electroencephalography (EEG), we aimed to evaluate whether SoJA occurs in joint action with the humanoid robot iCub and whether its emergence is influenced by the perceived intentionality of the robot. Behavioral results show that participants experienced SoJA with the robot partner when it was presented as an intentional agent but not when it was presented as a mechanical artifact. EEG results show that the mechanism that influences the emergence of SoJA in the condition when the robot is presented as an intentional agent is the ability to form similarly accurate predictions about the sensory consequences of our own and others’ actions, leading to similar modulatory activity over sensory processing. Together, our results shed light on the joint sensorimotor processing mechanisms underlying the emergence of SoJA in human-robot interaction and underscore the importance of attribution of intentionality to the robot in human-robot collaboration.
联合代理感(SoJA)是指人类在与他人共同行动以改变共同环境时所体验到的控制感。SoJA 的产生源于作为行动控制和监测基础的感觉运动预测过程。由于 SoJA 是我们与其他人一起行动时普遍存在的现象,因此了解在与仿人机器人协作任务中是否会出现 SoJA 以及在什么条件下会出现 SoJA 是非常有意义和重要的。在这项研究中,我们利用行为测量和脑电图(EEG)测量神经反应,旨在评估在与仿人机器人 iCub 共同行动时是否会出现 SoJA,以及 SoJA 的出现是否会受到机器人感知到的意向性的影响。行为结果表明,当机器人伙伴作为一个有意图的代理出现时,参与者会体验到 SoJA,而当机器人伙伴作为一个机械人工制品出现时,参与者则不会体验到 SoJA。脑电图结果表明,在机器人作为有意行为主体出现的情况下,影响 SoJA 出现的机制是,人们能够对自己和他人行为的感官后果形成类似的准确预测,从而对感官处理产生类似的调节活动。总之,我们的研究结果揭示了人机交互中出现 SoJA 所依据的联合感觉运动处理机制,并强调了在人机协作中将意向性归因于机器人的重要性。
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引用次数: 0
Would you risk humanity’s survival on a robot built in two years? 你会拿人类的存亡去赌一个两年内制造出来的机器人吗?
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adq6361
Robin R. Murphy
Project Hail Mary reflects real-world technical readiness assessment processes for robotics.
万福玛丽项目反映了现实世界中的机器人技术就绪评估过程。
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引用次数: 0
SimPLE, a visuotactile method learned in simulation to precisely pick, localize, regrasp, and place objects SimPLE,一种在模拟中学习到的可视触觉方法,用于精确拾取、定位、重新抓取和放置物体。
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adi8808
Maria Bauza, Antonia Bronars, Yifan Hou, Ian Taylor, Nikhil Chavan-Dafle, Alberto Rodriguez
Existing robotic systems have a tension between generality and precision. Deployed solutions for robotic manipulation tend to fall into the paradigm of one robot solving a single task, lacking “precise generalization,” or the ability to solve many tasks without compromising on precision. This paper explores solutions for precise and general pick and place. In precise pick and place, or kitting, the robot transforms an unstructured arrangement of objects into an organized arrangement, which can facilitate further manipulation. We propose SimPLE (Simulation to Pick Localize and placE) as a solution to precise pick and place. SimPLE learns to pick, regrasp, and place objects given the object’s computer-aided design model and no prior experience. We developed three main components: task-aware grasping, visuotactile perception, and regrasp planning. Task-aware grasping computes affordances of grasps that are stable, observable, and favorable to placing. The visuotactile perception model relies on matching real observations against a set of simulated ones through supervised learning to estimate a distribution of likely object poses. Last, we computed a multistep pick-and-place plan by solving a shortest-path problem on a graph of hand-to-hand regrasps. On a dual-arm robot equipped with visuotactile sensing, SimPLE demonstrated pick and place of 15 diverse objects. The objects spanned a wide range of shapes, and SimPLE achieved successful placements into structured arrangements with 1-mm clearance more than 90% of the time for six objects and more than 80% of the time for 11 objects.
现有的机器人系统在通用性和精确性之间存在矛盾。已部署的机器人操纵解决方案往往陷入一个机器人解决单一任务的模式,缺乏 "精确通用化 "或在不影响精度的情况下解决多项任务的能力。本文探讨了精确拾放和通用拾放的解决方案。在精确拾放或拼装过程中,机器人将无序排列的物体转化为有序排列,从而便于进一步操作。我们提出了 SimPLE(模拟拾取、定位和放置)作为精确拾放的解决方案。SimPLE 可在物体的计算机辅助设计模型和无经验的情况下学习拾取、重新抓取和放置物体。我们开发了三个主要组件:任务感知抓取、视觉触觉感知和再抓取规划。任务感知抓取可计算出稳定、可观察和有利于放置的抓取能力。视觉触觉感知模型依赖于通过监督学习将真实观察结果与一组模拟观察结果相匹配,从而估算出可能的物体姿势分布。最后,我们通过求解手与手之间重置图上的最短路径问题,计算出一个多步骤拾放计划。在一个配备了视觉传感功能的双臂机器人上,SimPLE 演示了 15 种不同物体的拾取和放置。这些物体形状各异,SimPLE 在 6 个物体上 90% 以上的时间内成功将其放置到间隙为 1 毫米的结构化排列中,在 11 个物体上 80% 以上的时间内成功将其放置到间隙为 1 毫米的结构化排列中。
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引用次数: 0
Biohybrid microrobots regulate colonic cytokines and the epithelium barrier in inflammatory bowel disease 生物杂交微型机器人调节炎症性肠病的结肠细胞因子和上皮屏障
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adl2007
Zhengxing Li, Yaou Duan, Fangyu Zhang, Hao Luan, Wei-Ting Shen, Yiyan Yu, Nianfei Xian, Zhongyuan Guo, Edward Zhang, Lu Yin, Ronnie H. Fang, Weiwei Gao, Liangfang Zhang, Joseph Wang
Cytokines have been identified as key contributors to the development of inflammatory bowel disease (IBD), yet conventional treatments often prove inadequate and carry substantial side effects. Here, we present an innovative biohybrid robotic system, termed “algae-MΦNP-robot,” for addressing IBD by actively neutralizing colonic cytokine levels. Our approach combines moving green microalgae with macrophage membrane–coated nanoparticles (MΦNPs) to efficiently capture proinflammatory cytokines “on the fly.” The dynamic algae-MΦNP-robots outperformed static counterparts by enhancing cytokine removal through continuous movement, better distribution, and extended retention in the colon. This system is encapsulated in an oral capsule, which shields it from gastric acidity and ensures functionality upon reaching the targeted disease site. The resulting algae-MΦNP-robot capsule effectively regulated cytokine levels, facilitating the healing of damaged epithelial barriers. It showed markedly improved prevention and treatment efficacy in a mouse model of IBD and demonstrated an excellent biosafety profile. Overall, our biohybrid algae-MΦNP-robot system offers a promising and efficient solution for IBD, addressing cytokine-related inflammation effectively.
细胞因子已被确定为导致炎症性肠病(IBD)的关键因素,但传统治疗方法往往被证明是不够的,而且有很大的副作用。在这里,我们提出了一种创新的生物混合机器人系统,称为 "藻类-MΦNP-机器人",通过主动中和结肠细胞因子水平来治疗 IBD。我们的方法将移动的绿色微藻与巨噬细胞膜包裹的纳米颗粒(MΦNPs)结合起来,"在飞行中 "有效捕捉促炎细胞因子。动态藻类-MΦNP-机器人通过持续移动、更好的分布和在结肠中更长时间的滞留,提高了细胞因子的清除率,从而优于静态机器人。该系统被封装在口服胶囊中,使其免受胃酸影响,并确保在到达目标疾病部位后发挥作用。由此产生的海藻-MΦNP-机器人胶囊能有效调节细胞因子水平,促进受损上皮屏障的愈合。它在小鼠 IBD 模型中显示出明显的预防和治疗效果,并具有良好的生物安全性。总之,我们的生物杂交藻类-MΦNP-机器人系统为治疗 IBD 提供了一种前景广阔的高效解决方案,可有效解决与细胞因子相关的炎症问题。
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引用次数: 0
Erratum for the Research Article “Fully neuromorphic vision and control for autonomous drone flight” by F. Paredes-Vallés et al. F. Paredes-Vallés 等人的研究文章 "用于无人机自主飞行的完全神经形态视觉和控制 "的勘误。
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adr0223
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引用次数: 0
Ironies of social robotics 社交机器人的讽刺
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adq6387
Tom Ziemke
Aiming for “humanlike” or “natural” interactions can make social robots and their limitations more difficult to understand.
以 "类人 "或 "自然 "互动为目标,会让人更难理解社交机器人及其局限性。
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引用次数: 0
The future lies in a pair of tactile hands 未来在于一双触觉灵敏的手。
IF 26.1 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-26 DOI: 10.1126/scirobotics.adq1501
Nathan F. Lepora
Advancing robot hand dexterity with optical tactile sensing raises questions about humanoid robotics.
利用光学触觉传感技术提高机器人手部灵巧性提出了仿人机器人技术方面的问题。
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引用次数: 0
The role of low-cost robots in the future of spaceflight 低成本机器人在未来航天中的作用。
IF 25 1区 计算机科学 Q1 ROBOTICS Pub Date : 2024-06-19 DOI: 10.1126/scirobotics.adl1995
Paul E. Glick, J. Bob Balaram, Michael R. Davidson, Elizabeth Lyons, Michael T. Tolley
Lessons from the CubeSat and Mars Exploration programs may guide the infusion of robotics for planetary science and exploration.
从立方体卫星和火星探测计划中汲取的经验教训可以为行星科学和探测注入机器人技术提供指导。
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引用次数: 0
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Science Robotics
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