Design of new Sensory Soft Hand: Combining air-pump actuation with superimposed curvature and pressure sensors

This paper presents the design of a new sensory soft hand that can be adapted to the wrists of small humanoids like the NAO robot. The fingers of the hand can act as a gripper thanks to air pump actuation. The innovation resides in the internal face of each finger which is equipped with a superimposition of four piezo resistive sensors and one curvature sensor. Thanks to this multi-layered arrangement of sensors, it is possible to estimate the curved shape of the fingers and the amount of pressure that is exerted by the object grasped by the hand. The combination of forces and deformation measurements resulting from the interaction of the gripper with external objects is essential for the quality of the grasp, and even allows to estimate properties of the object. In addition to usual advantages of soft grippers like mechanical compliance, shock resistance, and lightweight, this gripper is simple to manufacture, low cost and easy to fit.

[1]  R. Johansson,et al.  Tactile sensory coding in the glabrous skin of the human hand , 1983, Trends in Neurosciences.

[2]  Yong-Lae Park,et al.  Design and Fabrication of Soft Artificial Skin Using Embedded Microchannels and Liquid Conductors , 2012, IEEE Sensors Journal.

[3]  Philippe Gaussier,et al.  Touch-based admittance control of a robotic arm using neural learning of an artificial skin , 2016, 2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).

[4]  William C. Messner,et al.  Fin Ray® Effect Inspired Soft Robotic Gripper: From the RoboSoft Grand Challenge toward Optimization , 2016, Front. Robot. AI.

[5]  Hangsik Shin,et al.  Feasibility Study of Sitting Posture Monitoring Based on Piezoresistive Conductive Film-Based Flexible Force Sensor , 2016, IEEE Sensors Journal.

[6]  A. Bicchi,et al.  The Change in Fingertip Contact Area as a Novel Proprioceptive Cue , 2016, Current Biology.

[7]  Daniel T. H. Lai,et al.  Characterization of a new flexible pressure sensor for body sensor networks , 2013, 2013 IEEE Eighth International Conference on Intelligent Sensors, Sensor Networks and Information Processing.

[8]  G. Whitesides,et al.  Soft Machines That are Resistant to Puncture and That Self Seal , 2013, Advanced materials.

[9]  Robert J. Wood,et al.  Influence of surface traction on soft robot undulation , 2013, Int. J. Robotics Res..

[10]  B. Finio,et al.  Air-powered soft robots for K-12 classrooms , 2013, 2013 IEEE Integrated STEM Education Conference (ISEC).

[11]  Robert J. Wood,et al.  A soft wearable robotic device for active knee motions using flat pneumatic artificial muscles , 2014, 2014 IEEE International Conference on Robotics and Automation (ICRA).

[12]  Manuel G. Catalano,et al.  Adaptive synergies for the design and control of the Pisa/IIT SoftHand , 2014, Int. J. Robotics Res..

[13]  Leonardo Cappello,et al.  A soft wearable robot for the shoulder: Design, characterization, and preliminary testing , 2017, 2017 International Conference on Rehabilitation Robotics (ICORR).

[14]  Henrik I. Christensen,et al.  Custom soft robotic gripper sensor skins for haptic object visualization , 2017, 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).

[15]  Matteo Bianchi,et al.  Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands. , 2016, Physics of life reviews.

[16]  DaeEun Kim,et al.  Finger-gesture Recognition Glove using Velostat (ICCAS 2011) , 2011, 2011 11th International Conference on Control, Automation and Systems.

[17]  Hong Zhao,et al.  Design of a 3D printed insole with embedded plantar pressure sensor arrays , 2017, UbiComp/ISWC Adjunct.

[18]  Ana-Maria Cretu,et al.  Multimodal Bio-Inspired Tactile Sensing Module , 2017, IEEE Sensors Journal.

[19]  Oliver Brock,et al.  A novel type of compliant and underactuated robotic hand for dexterous grasping , 2016, Int. J. Robotics Res..

[20]  William C. Messner,et al.  Passive gripper inspired by Manduca sexta and the Fin Ray® Effect , 2017 .

[21]  Gert Kootstra,et al.  Design of a flexible tactile sensor for classification of rigid and deformable objects , 2014, Robotics Auton. Syst..

[22]  Yiwei Tao,et al.  Wearable soft artificial skin for hand motion detection with embedded microfluidic strain sensing , 2015, 2015 IEEE International Conference on Robotics and Automation (ICRA).

[23]  Daniel M. Vogt,et al.  Design and Characterization of a Soft Multi-Axis Force Sensor Using Embedded Microfluidic Channels , 2013, IEEE Sensors Journal.

[24]  Hyung Jin Sung,et al.  Highly Stretchable, Hysteresis-Free Ionic Liquid-Based Strain Sensor for Precise Human Motion Monitoring. , 2017, ACS applied materials & interfaces.

[25]  Nikolaus Correll,et al.  A soft pneumatic actuator that can sense grasp and touch , 2015, 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).

[26]  R. Adam Bilodeau,et al.  Monolithic fabrication of sensors and actuators in a soft robotic gripper , 2015, 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).

[27]  Robert J. Wood,et al.  Soft robotic glove for combined assistance and at-home rehabilitation , 2015, Robotics Auton. Syst..

[28]  Robert J. Wood,et al.  Wearable tactile keypad with stretchable artificial skin , 2011, 2011 IEEE International Conference on Robotics and Automation.

[29]  Mehmet Remzi Dogar,et al.  Haptic identification of objects using a modular soft robotic gripper , 2015, 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).

[30]  Gaël Varoquaux,et al.  Scikit-learn: Machine Learning in Python , 2011, J. Mach. Learn. Res..

[31]  Aaron M. Dollar,et al.  Single-Grasp Object Classification and Feature Extraction with Simple Robot Hands and Tactile Sensors , 2016, IEEE Transactions on Haptics.

[32]  Filip Ilievski,et al.  Soft robotics for chemists. , 2011, Angewandte Chemie.

[33]  George M. Whitesides,et al.  A Hybrid Combining Hard and Soft Robots , 2014 .