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UK-RAS White papers © UK-RAS 2016 ISSN 2398-4414 Space Robotics & Autonomous Systems : Widening the horizon of space exploration www.ukras.org // Space Robotics & Autonomous Systems Space Robotics & Autonomous Systems // UKRAS.ORG // Space Robotics & Autonomous Systems FOREWORD SPACE ROBOTICS AND AUTONOMOUS SYSTEMS Welcome to the UK-RAS White Paper explore and ultimately to work and live in annual updates for these white papers so Series on Robotics and Autonomous space are major drivers of the sector. The your feedback is essential - whether it be Systems (RAS). This is one of the core technologies developed in space RAS are pointing out inadvertent omission of specific activities of UK-RAS Network, funded by major enablers to a wide range of manned areas of development that need to be the Engineering and Physical Sciences and unmanned space missions. Space covered, or major future trends that deserve Research Council (EPSRC). By bringing RAS is unique, sharing many common further debate and in-depth analysis. together academic centres of excellence, challenges with terrestrial RAS yet facing industry, government, funding bodies and distinctive design and environment Please direct all your feedback to white- charities, the Network provides academic constraints. I hope the vision and technical [email protected]. We look forward to leadership, expands collaboration with roadmap outlined by the authors will inspire hearing from you! industry while integrating and coordinating future research, promote collaboration, and activities at the EPSRC funded RAS capital identify key areas of future growth in this facilities, Centres for Doctoral Training and fascinating area of RAS. partner universities. The UK-RAS white papers are intended In this white paper, a comprehensive to serve as a basis for discussing the overview of space RAS is provided, future technological roadmaps, engaging covering historical developments and the wider community and stakeholders, technological evolution over the years. as well as policy makers in assessing the The UK has extensive expertise and potential social, economic and ethical/legal Prof Guang-Zhong Yang, FREng facilities in space RAS. Our ambition to impact of RAS. It is our plan to provide Chair, UK-RAS Network Yang Gao Daniel Jones Roger Ward Elie Allouis Aron Kisdi Professor of Space Autonomous Space Robotics SRC - UK Lead, Technology Manger, Space Robotics and Mission Systems Robotics Systems Engineer, Systems, Head of STAR Lab, UK Space Agency. Division, Engineer, Future Programmes, Autonomous Systems Group, University of Surrey. SciSys Ltd. Airbus Defence RAL Space, STFC. and Space Ltd. on behalf of the UK-RAS Network, established to provide academic leadership, expand collaboration with industry while integrating and coordinating activities at EPSRC funded RAS capital facilities, Centres for Doctoral Training and partner universities. Space Robotics & Autonomous Systems // CONTENTS 2 Introduction 4 History and Technology Evolution 6 Technical Goals and Challenges 8 UK Strengths & Capabilities 14 Opportunities & Benefits 16 References 1 // Space Robotics & Autonomous Systems Robotics already plays a key role in space exploration and exploitation, supporting both manned and un- manned missions. When coupled with increasingly capable autonomous and intelligent systems, robotics will enable yet more audacious exploration of our solar system whilst also reducing the cost and increasing the use of space to manage our Earth's resources and monitor our environment. Professor Sir Martin Sweeting Executive Chair, SSTL Space Robotics & Autonomous Systems // 2 1. INTRODUCTION Space robotics and autonomous systems (or Space RAS) be reasoned upon in a timely fashion, hence are critical for play a critical role in the current and future development improving human and systems’ safety. RAS can also enable of mission-defined machines that are capable of surviving the deployment and operation of multiple assets without the in the space environment, and performing exploration, same order of magnitude increase in ground support. Given assembly, construction, maintenance, or servicing tasks. the potential reduction to the cost and risk of spaceflight Modern space RAS represents a multi-disciplinary emerging both manned and robotic, space RAS are deemed relevant field that builds on as well as contribute to knowledge of the across all mission phases such as development, flight space engineering, terrestrial robotics, computer science as system production, launch and operation. well as many miscellaneous subjects like materials and IT. Space RAS covers all types of robotics for the exploration of Space RAS are important to human’s overall ability to a planet surface as well as robotics used in orbit around the explore or operate in space, by providing greater access Earth and the sensors needed by the platform for navigation beyond human spaceflight limitations in the harsh or control. Orbital robots can be envisaged for repairing environment of space and by providing greater operational satellites, assembling large space telescopes, capturing handling that extends astronauts’ capabilities. Autonomous and returning asteroids, or deploying assets for scientific systems are capable of reducing the cognitive load on investigations, etc. Planetary robots play a key role in the humans given the abundance of information that has to surveying, observation, extraction, close examination of Space Robotics ! Design drivers, Sensing & perception Mission planning H/W & S/W Harness Bionics requirements, Mobility & locomotion Machine learning System engineering Advanced Material specifications... Navigation Soft computing Space qualifications IT Space Terrestrial Computer Space Miscellaneous Science Robotics Science Engineering Subjects FIGURE 1. Space RAS, a multi-disciplinary emerging field 3 // Space Robotics & Autonomous Systems extra-terrestrial surfaces (incl. natural phenomena, terrain level of autonomy, ranging from tele-operation by human composition and resources), constructing infrastructures on to fully autonomous operation by the robots themselves1. a planetary surface for subsequent human arrival, or mining Depending on the level of autonomy, a space robot can act planetary resources, etc. as 1) a robotic agent (or human proxy) in space to perform various tasks using tele-operation up to semi-autonomous Depending on these applications (either orbital or planetary), operation, or 2) a robotic assistant that can help human space robots are often designed to possess mobility (or astronauts to perform tasks quickly and safely, with higher locomotion) to manipulate, grip, rove, drill and/or sample. quality and cost efficiency using semi to fully autonomous Driven similarly by the nature of the mission and distance operation, or 3) a robotic explorer that is capable of exploring from the Earth, these robots are expected to possess varying unknown territory in space using fully autonomous operation. 1 Level of autonomy onboard spacecraft defined by European Cooperation for Space Standardization (ECSS): Level E1: execution mainly under real-time ground control, i.e. remote or tele-operation. Level E2: execution of pre-planned mission operations onboard, i.e. automatic operation. Level E3: execution of adaptive mission operations onboard, i.e. semi-autonomous operation. Level E4: execution of goal-oriented mission operations onboard, i.e. fully autonomous operation. FIGURE 2. Applications of space RAS, from orbital to planetary. Space Robotics & Autonomous Systems // 4 2. HISTORY AND TECHNOLOGY EVOLUTION The need for humans to explore beyond the realm of the USSR and USA. In parallel to the expensive development of Earth is driven by our inherent curiosity. Throughout our manned space programs, the use of cheaper robotic proxies history, new world has been discovered by daring explorers was critical to understand the space environment where the who set out to discover new lands, find riches or better astronauts would be operating as well as to further explore understand these little-known territories. These journeys our solar system. were fuelled by the technological advances of the times such as the compass, maritime maps or plane, and in return Across the existing robotic missions, a range of mobility or contributed tremendously to the scientific knowledge of locomotion systems has played a significant role, including humankind. the surface rovers, robotic arms or manipulators, subsurface samplers and drills. Table 1 summarizes the missions and Outer space has provided real, new exploration frontiers robots successfully flown on Earth orbit, the Moon, Mars, for mankind since the 1950s. With the capability and and small bodies. the irresistible attraction to go beyond our planet Earth, minimizing the impact of mankind on other extra-terrestrial The first genuine robotic mobility system successfully bodies (be it a planet, a moon, a comet or an asteroid) is operated on an extra-terrestrial body was a scoop (i.e., a paramount. The onset of space exploration in the late 1950s manipulation cum sampling device) onboard the Surveyor 3 to early 1960s focused on sending humans into the Earth lander launched in 1967 to the Moon. Following that, Luna orbit and the Moon as a result of the space race between the 16 succeeded with the first planetary robotic arm-mounted Year Mission Country Target Rover Arm Sampler Drill 1967 Surveyor 3 USA Moon x 1970/72/76 Luna 16/20/24 USSR Moon x x x 1970/73 Luna 17/21 USSR Moon x 1975 Viking USA Mars x x
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