Fluidic Control for Soft Robotic Systems in Extreme Environments

Lead Research Organisation: University of Edinburgh
Department Name: Sch of Engineering

Abstract

Developing autonomous mobile robots capable of human interaction depends on our ability to use the best tools for the job. New interesting approaches that tackle the problems of autonomy and interaction are developed every year. However, we have been unable to integrate all these new technologies into our systems due to high engineering costs. We need to rethink the way we design hardware considering other targets (fluidic systems) to make the design of custom hardware accessible to roboticists. It is important that we identify opportunities to apply digital systems and software engineering best practices to develop an automated software pipeline for control architectures of robots.

Fluidic systems offer distinct advantages over electronics that make them suitable in situation with high radiation, electromagnetic interference, and explosive atmospheres. Fluidics reduce the number of control lines required both for soft and hydraulic robots which are necessary for human interaction and high-power applications (e.g. construction) respectively.

To aim of this project is to develop integrated soft and hydraulic robotic systems which have fluidic, rather than electronic control for safe operation in extreme environments.

Planned Impact

The Centre will have immediate short-term impacts on people skills and innovation pipeline, alongside key advances in scientific knowledge and techniques in Robotics and Autonomous Systems (RAS). With the strength of the programme's training emphasis on safety and responsible research and innovation (RI), we also target longer term economic and societal benefits.

Economy: It is estimated that the application of advanced robotics could generate a potential worldwide economic impact of $1.7-4.5 trillion by 2025 per year by 2025 (McKinsey). Over the last 5 years, the UK has witnessed significant new investments in robotics from both Government with the £4.7B Industrial Strategy Challenge Fund (ISCF), spawning parallel investments from industry. An example is the EPSRC £18M investment in the EPSRC ORCA Hub in RAS, led by Heriot-Watt, leveraging a further £18.5M industry investment. The potential economic impact of RAS, however, is hampered by a massive skills shortage, which the proposed CDT-RAS would address. The new jobs created by these investments will require highly specialised, yet interdisciplinary and industrially relevant skill-sets. The CDT-RAS is well positioned to supply the UK workforce in this growing area, through strong links with industry through its extensive CDT-RAS Project Partners network and through a training emphasis on 'innovation-ready' graduates. For example, our CDT-RAS students will have the opportunity to grow into industrial leaders of tomorrow through direct experience and company placements, as well as, through the CDT's extensive support for commercialisation and start-ups.

Society: Robotic and autonomous systems have already been identified by the UK government as a key component to enable safer working conditions for 'dull, dirty and dangerous' tasks in extreme and challenging environments such as offshore, nuclear, mining, and space. Moreover, there are disruptive opportunities for RAS to contribute to cost-effective and safer construction, transport, and manufacturing and improved quality-of-life through healthcare and assisted living. CDT-RAS training focuses on interdisciplinary, cross-cutting, yet responsible research and innovation to allow our future leaders to develop techniques and technologies that will have impacts in new areas, beneficially improving society beyond what we can already imagine. We will develop autonomous systems and AI enablers that are transparent to developers and end-users alike. This will allow robots and machines to work seamlessly in society both individually and in teams and comply with regulations, such as the EU General Data Protection Regulations (GDPR) and emerging IEEE standards, such as P7001 for Transparency for Autonomous Systems (for which Centre academics are members of the working group).

Science: CDT-RAS students will benefit from i) a critical mass of over 50 experienced supervisors, ii) the brand new facilities of the £27.5M National ROBOTARIUM and earlier £8M EPSRC equipment investments, as well as, iii) opportunities for international scientific and industrial lab placements. The Centre will realise scientific advancement and impact, crucial to enabling safe interaction between RAS, humans and the environment, including soft robotics, bio-inspired systems, human-robot interaction, swarms and collaborative robotics including human-robot teaming, sensing, embedded control, multi-agent decision making and maritime field robotics. The impact of the resultant research will be strengthened through top-venue publications and conference presentations, utilising student presentation/writing skills honed during the CDT-RAS training. Impact will also come through outreach such as international student robot competitions, public engagement activities such as science festivals and CDT-RAS hosted international researcher visitors and workshops.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/S023208/1 01/10/2019 31/03/2028
2270369 Studentship EP/S023208/1 01/10/2019 30/09/2023 Ioannis Skottis
 
Description Fluidic circuits are a counterpart to pneumatic and hydraulic actuation. Soft robots use pneumatic actuation to ensure safe human-robot interaction. Hydraulic robots are relevant to industrial uses such as nuclear decommissioning, mining, and other extreme environments. The way we design these system is inefficient as we don't make any use of design automation or programming languages. To date I have:
- proposed a standardised fabrication procedure for pneumatic systems (paper pending)
- designed a pneumatic soft stepper motor (implementation and paper pending)
- designed and implemented various modular components
- implemented software automation the design of channel routing (paper pending)
Exploitation Route The work of this project acts as a foundation for further development in the space of soft and hydraulic robots. It is intended to empower researchers and accelerate application-focused research.
In brief the software and hardware modules designed for this project can be used for the construction of soft robots for forestry management, hydraulic robots for construction and manufacturing as well as extreme environments such as mining and nuclear decommissioning
Sectors Agriculture, Food and Drink,Construction,Manufacturing, including Industrial Biotechology

 
Description Connect-R Control System Design 
Organisation Innovate UK
Country United Kingdom 
Sector Public 
PI Contribution I have provided input for the design of the control system for the modular robot designed for the Connect-R project. My contribution was intellectual in nature that included the control system design documents and relevant documentation. The work was later implemented by another member of the team.
Collaborator Contribution The Connect-R team developed an industrial-scale self-building modular robotic solution to provide access to work-sites in hazardous environments. The Connect-R project attempts to provide structure to unstructured environments to maximise the useful time available to a system in high radiation environements. The rest of the team developed the robot modules, connectors, and was in charge of the assembly and software development.
Impact https://doi.org/10.1002/aisy.202000227.
Start Year 2020
 
Description RAS: Disruptive Technologies for the New Normal - IEEE UK&I RAS Conference - Poster Presentation 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Postgraduate students
Results and Impact Robotics and Autonomous Systems (RAS) are playing a central role in developing innovative tools that help us address various global challenges - enabling us to get things done more efficiently, safely, and in an economically and environmentally sustainable manner. This interactive event is targeted at robotics practitioners - PhD students, PDRAs, researchers from academia, and industry professionals - to discuss 'blue sky' and high-risk 'moonshot' ideas. A key focus will be exploring opportunities and solutions to address current and ongoing challenges across all sectors (due to COVID 19 and beyond) and how RAS can play a key role in economic recovery. The event combines a poster session, short selective talks by invited speakers in the four key themed areas of RAS and an interactive panel interspersed with inspiring keynotes by leading UK researchers.

Subjects discussed during the event were robotics for: extreme environments, assisted living and space as well as verifiable & explainable tools and digital twins for robotics.
Year(s) Of Engagement Activity 2022