PixelBeing - An Eco-sustainable Approach to Robotics and AI

In this paper, we describe and define the range of possible applications and the technical contours of a robotic biotechnological system to be worn on the body for playful interactions. Moving from earlier works on Wearable and Modular Robotics, we describe how, by using modular robotics for creating wearable, it is possible to obtain a self-sustainable and flexible wearable system, consisting of freely inter-changeable input/output modules that through the use of solar, mechanical, and other sources of renewable energy are able to suit some specific tasks. Here, we drive the attention on early prototypes to show the potentialities of such an approach, and focus on depicting possible application in the future of electronics domain. Indeed, our artistic experiment is a clear example of how to scale down electronics to an eco-sustainable level, which can still create playful and useful interactions for many application domains.


Introduction
The inevitable destiny of all of the future technologies is to align to the process of lessening the environmental impact both in terms of production, materials, and consumption.Therefore, electronics, computing, and robotics too should try to reduce their environmental effect from the design phase.To work on design decisions to improve sustainability, designers need clear information on how to keep the whole process manageable, sustainable and doable.As a consequence, such product design consists both of choosing between an enormous array of options and, vice versa, a very limited subset of possibilities.
Therefore, the main intention of the PixelBeing project is to design an artifact able to provide product designers with actionable insights into the main triggers of environmental impacts, so they can change their design conception to be more environmentally friendly.We do so either to support eco-design strategies and to create necessarily low-cost and eco-friendly products, while keeping in mind that any product still needs its robustness, its flexibility and the usual support provided by any developer.Our decision was to realize a prototype that, in part, is a tool for product designers with which they are able to quickly see, compare and assess design variations without needing to go through the whole experimental process, building on the playware research methodology [1].Indeed, eco-friendly design factors, such as mass, energy use and transport volume, etc. are very many and difficult to ensemble together in the same production, and our experimentation shapes some knowledges that might provide easy entry points to make design improvements and allows designers to develop product-specific guidelines.
On one side, our research piece aspires to be part of that larger investigation that is facing a concrete challenge, a challenge that might lead towards an epochal change while, on the other hand, the PixelBeing project being a handmade art-oriented research piece (building on previous robot art investigations [2]) carries along with it a relatively low-demanding output in terms of tangible industrial production, by now, and on the opposite an extra request to fulfill a serious request in terms of innovative aesthetical results.
The PixelBeing thinking has meant trying to revisit High-Tech production of AI and Robotics artifacts under a more ethical light, looking for the best ways to analyze hotspots and opportunities in the production life cycles under an economical point of view, without sacrificing efficient, accurate and transparent results.A first example regards materials.In PixelBeing it has been a search on the most available and accessible, easy and effortless production methods that avoid the use of plastic or other toxic and high-impact materials as much as possible.Another clear example are methods.In PixelBeing we tried to minimize either the size and the value or the implant difficulty, in terms of speed and effort, of any given functional component, as well as, we focused on technologies where the lifespan of the whole structure and replacement of broken parts is an essential target.A final example regards energy.We focused our research on the most obvious energy impact of the technology in use.In PixelBeing, indeed, we mostly make use of solar panel circuits and we are actually immerged in the process of implementing mechanical energy ones in the form of kinetic energy, in which objects have the ability to do work when they move, and potential energy, in which objects have the ability to do work due to its own position.
In short, this electronic art project aims at an initial renovation of the idea of robotics so that it will be able, in the near future, to reach the design, production and consumption of objects that are ethically more adequate in the sense of eco-sustainability.

The PixelBeing Project
PixelBeing is a project for a theatrical character that consists of a robotic system to be worn on the body (derived from previous work [3,4]).It is meant to produce aesthetical and playful interactions, and it is built using concepts derived from modular robotics and modular playware [5,6].It foresees a full body suit made of a mask, gloves, shoes and a flexible wearable processing system, where freely interchangeable input/output modules can be positioned on the body suit in accordance with the aesthetical demand and tasks, at hand.The idea is to implement both a virtual (sensorsbased) interaction and a more physical one to reach a wider range of possible outcomes, behaviorally and aesthetically.Therefore, the basic challenge is to design a general interface that focuses on the users' body interaction with the real world, and possibly with a social environment.At the currents state we have tested the general principles and have developed the mask as well as started assembling the gloves and the body costume.This project mainly focuses on eco-friendly technologies and processes and tries to exploit the sustainability of any electronic (art) tools.It makes use of recycled components, biomaterials and supports, solar panels and all of the possible sources of renewable energies, and it also pay attention to the principle that procedures and resources should be as natural and easy to access, as much as possible.
The basic idea is a suit that ends up to be the playfield where to arrange different mechanical, electronic and electromechanical modules according to any need.The modules we use on it can be either isolated or interconnected and should be made so that they can be easily and quickly relocated, therefore, the way the resulting suit configuration will perform a task will depend both on the modules' specific functionalities and on their physical (or their geographical) displacement on the suit itself.Modularity is essential, and that is because besides of offering a larger variety of possible configurations and activities it is a pretty eco-friendly approach since it allows the less expensive procedure when a subpart of the artifact gets out of work.Of course, such What&Where System can be applied to a wide and complex number of situations and tested on many potentials and can be used to create body interactions in several application domains.
Therefore, it becomes crucial to experiment the possible "definition" and implementation of the idea of module and of module's functionality.We framed a number of modules general characteristics as: A) Each module-circuit is fully autonomous energetically and electronically, although a circuit can be thought as 'eventually' connected physically or virtually to others modules, to a font of energy, or to any other computer interface; B) Although there can be exceptions, each single circuit is conceived independently from its final location; C) A module should be applicable to any geolocation and should be thought as for a general purpose, not limited to any single and specific application.As said above, modules can be thought as either isolated or interconnected, and in the latter case we think to a communication paradigm where modules can communicate: A) Locally: Neighbor-to-Neighbor communication (wired or wireless); B) Globally: From one module to a module far away (wireless); C) One to one communication system; D) one to many communication systems; E) Many to many communication system.Our research, at the moment, can be considered primitive.We aim to evolve it in many different ways and a grant and/or a team experienced in electronics, robotics, informatics and AI would be ideal to such a goal.Indeed, we wish to implement modules that have a highly significant input set (a large number of sensors, including biofeedback and neurofeedback ones), a clever input pre/processing, and a large set of articulated outputs (including motor actions).
There are few more levels of research embodied into the PixelBeing.
The first one explores the use renewable energies.We already furnished PixelBeing with accumulators modules as well as displaced on his head different solar panels modules.
The two interconnected modules are able to sustain wee electronic circuits and if perfected should be able in the early future to supply enough power to larger circuits.
We are now in the process of exploiting the use of mechanical energy modules of two different kinds.The first one that makes use of the kinetic energy produced by the body of the actor wearing the suit, and the second one which simply uses the ability of taking advantage to work thanks to gravitational due to its own position in three-dimensional space.The second level of investigation is digging in the potentialities of the use of biomaterials when building and assembling modules.We are making a real effort trying to integrate electronic circuits within the most natural material.Of course, there are many elementary problems, especially related to the moisture potential, we are slowly overcoming.
Meanwhile we basically aim at reaching such a level of integration where electronics co-exists with alive materials and, probably a dream, circuits are somehow partially fed by the growth such processes like the chlorophyll photosynthesis produced by any plant.A third level of investigation is the one that focuses on targeting the minimal size of the modules since, often, the smaller modules are the lesser they consume, the more adaptable is to implement the whole structure, and the cheaper to repair/replace broken units.
The fourth level of investigation regards the energy flow.Since the PixelBeing design is a design that fully relies on renewable energies it has to rethink the flow of energy in terms of appropriate modules location.The "electronics space" must be thought in profitable geometrical terms, so that acquiring and distributing energy itself has to be done in most convenient way.

Discussion and Conclusion
In this paper we described and defined a full range of possible implications and the technical contours for a modern robotic biotechnological system.Moving a general overview on eco-friendly design we described how, by using modular robotics for creating wearable, it is possible to approach a self-sustainable and flexible wearable system, consisting of freely inter-changeable input/output modules that through the use of renewable energy we were able to reach some important goals as well as targets, as for example introduce natural materials and renewable energy in such delicate field as wearable robotics design.We described the progresses of our first prototypes to show the potentialities of such an approach, and focus on depicting possible future applications in all of the electronics domain.Indeed, our artistic experiment is a clear example of how to scale down electronics to an eco-sustainable level, which can still create functional, playful and useful interactions for many applicative fields.

Fig. 3 .
Fig. 3. Detail of the PixelBeing mask.A Solar-panels based circuit module mounted on PixelBeing's helmet

Fig. 4 .
Fig. 4. A detail of a sense-and-actuate module to be mounted on PixelBeing' suit.Later prototype.A biomaterial-based circuit made out of natural wood and moss.