Skip to Main content Skip to Navigation
Journal articles

Task-driven PCA-based design optimization of wearable cutaneous devices

Abstract : Small size and low weight are critical requirements for wearable and portable haptic interfaces, making it essential to work toward the optimization of their sensing and actuation systems. This paper presents a new approach for task-driven design optimization of fingertip cutaneous haptic devices. Given one (or more) target tactile interactions to render and a cutaneous device to optimize, we evaluate the minimum number and best configuration of the device's actuators to minimize the estimated haptic rendering error. First, we calculate the motion needed for the original cutaneous device to render the considered target interaction. Then, we run a principal component analysis (PCA) to search for possible couplings between the original motor inputs, looking also for the best way to reconfigure them. If some couplings exist, we can redesign our cutaneous device with fewer motors, optimally configured to render the target tactile sensation. The proposed approach is quite general and can be applied to different tactile sensors and cutaneous devices. We validated it using a BioTac tactile sensor and custom plate-based 3-DoF and 6-DoF fingertip cutaneous devices, considering six representative target tactile interactions. The algorithm was able to find couplings between each device's motor inputs, proving it to be a viable approach to optimize the design of wearable and portable cutaneous devices. Finally, we present two examples of optimized designs for our 3-DoF fingertip cutaneous device.
Document type :
Journal articles
Complete list of metadatas

Cited literature [16 references]  Display  Hide  Download

https://hal.inria.fr/hal-01717652
Contributor : Eric Marchand <>
Submitted on : Monday, February 26, 2018 - 3:48:39 PM
Last modification on : Friday, July 10, 2020 - 4:01:48 PM
Long-term archiving on: : Monday, May 28, 2018 - 3:53:29 PM

Files

2018_ral_pacchierotti.pdf
Files produced by the author(s)

Identifiers

Citation

Claudio Pacchierotti, Eric Young, Katherine Kuchenbecker. Task-driven PCA-based design optimization of wearable cutaneous devices. IEEE Robotics and Automation Letters, IEEE 2018, 3 (3), pp.2214-2221. ⟨10.1109/LRA.2018.2810953⟩. ⟨hal-01717652⟩

Share

Metrics

Record views

662

Files downloads

294