CO2-Neutrality and Digital School: can we align them? Track eCampus of the conference Campus Innovation 2019 Donnerstag, 21. November 2019, 15:50–17:30, Hamburg
In this talk, we shall propose multiple concrete and practical tips how a contradiction between goal of carbon neutrality on one hand, and demands of energy-hungry digitalisation on the other, could potentially be resolved, at least in educational settings. Besides a brief discussion of some basic facts concerning renewable resources and photovoltaic technologies, we shall mainly focus on concepts of circadian and energy-autark (eutark) devices. While circadian devices are defined as devices with pre-built daily “rhythms", eutark devices are devices able to generate energy necessary for their own operation. Contingently to constraints of circadianity and eutarky, we shall present further enviromentally relevant design choices which were made during the development process of the "digital Primer" (digitale Fibel). The primer is a DIY digital education artefact aiming to attain operational CO2-neutrality by means of combining circadian components and strategies with well-selected hardware (Pi Zero instead of Pi 3 or 4), interfaces (e-paper instead of screens) and software (bare-bone OS, optimized code) etc. Towards the end of the talk we will discuss the potential didactic impact of primer-like devices on the behavior of their users, further amplifying positive ecological implications of our proposal.
Devices which increase the electricity bill of a digital school may include desktop PCs, notebooks, tablets, smartphones, raspberry PIs & IoT devices, GPUs, beamers, displays, audio stuff (amplifiers, active speakers, broadcasting systems), interactive whiteboards, fiber optic adapters, routers, switches, hubs, WLAN access points, antenas, printers (including plotters, 3D printers, lasercutters, CNC cutters etc.), augmented / virtual reality environments, surveillence & security setups, different kinds of "smart" sensors and controllers, power supply and power management units, TPUs and other application-specific integrated circuits (ASICs) etc.
Note: devices consume electricity even when they are in idle / standby modus.
"A circadian device (CD) is defined as a device with pre-built daily “rhythms”.
That is, a device manifesting at least two state transitions (for example “deep-sleep to full activity; full activity to deep-sleep”) within a 24-hour period.
Ideally, the very hardware of such device is designed & optimized to be automatically turned “on” and “off” on a regular basis.
A “deep sleep” of a certified CD is to be characterized by energy consumption limitely close to zero. This implies that—with exception of few microor nanoamperes keeping the reactivation clock battery alive in order to know when to trigger the relaunching spark—a certified CD will be simply and measurably, off."
"The major boot-up time of our current Primer prototype is at 14:30 of the timezone within which it is currently located.
Consequently, the Primer is active for an hour, inviting the Child to perform whatever activities she finds appropriate (e.g. reading, writing, speaking, listening, arithmetics etc.).
After one hour, the artefact shuts down on its own, in order to wake up once again at 18:00 for a ”minor” interaction session lasting 30 minutes. At 18:30, it shuts down and stays deactivated until next afternoon."
E-paper does not radiate light and hence does not consume electricity in order to display content. Energy is consumed only when content is changed. Hence, e-paper is to be understood as the solution of choice for any non-animated content.
NOTE: e-paper and circadian strategies are a very good match
Make Your Own Device ! During this seminar, we are going to familiarize ourselves with e-ink technology: what are its main (dis)advantages in comparison to dominant display technologies. And we are going to connect our e-papers to Raspberry Pis and Arduinos and create some real stuff: e-paper based wearables (maybe), the second prototype of a digital primer and who knows, maybe a cool interactive but low-consumption menu for Medienhaus cafeteria. MYOD !
Grunewaldstrasse (Medienhaus) Raum 311
Wednesday, 16:00 - 19:00
bi-weekly sessions on: 30.10, 13.11, 27.11 (Berlin Open Lab), 11.12, 18.12, 8.1., 22.1. (Einstein Center Digital Future), 5.2
"Watching a video online on the Cloud for ten minutes, for example, results in the electricity consumption equivalent to the consumption of a smartphone over ten days. In other words, the energetic impact of watching a video is about 1,500 times greater than the simple electricity consumption of a smartphone itself." https://theshiftproject.org/wp-content/uploads/2019/03/Lean-ICT-Report_The-Shift-Project_2019.pdf