Current Research Work

SCSS Treasures
The John Gabriel Byrne Computer Science Collection is recorded in the Schedules to the Statutes as being among the treasures of Trinity College Dublin. This invaluable academic collection of early computing items was begun by Professor John Gabriel Byrne in the 1950s, encompassing approximately 3000 items of hardware, literature, miscellany, sliderules and software. It is being carefully curated and indexed in an online catalog (a long-term work in progress) by Dr.Brian Coghlan and Dr.Dan McCarthy of the School of Computer Science and Statistics, Trinity College Dublin. See:
SCSS Treasures Catalog

Percy Ludgate
Percy Edwin Ludgate (b.2-Aug-1883, d.16-Oct-1922) was a Dublin corn merchant clerk who designed the 2nd analytical engine (general purpose Turing-complete computer) in history. The John Gabriel Byrne Computer Science Collection holds an original offprint of his 1909 paper "On a Proposed Analytical Machine" (as well as an original offprint of Lady Ada Lovelace's 1843 paper on the 1st Analytical Engine designed by Charles Babbage), and originals of the 1909 Nature review of his paper and his 1914 paper at the Napier Tercentenary Exhibition, plus other Ludgate-related papers. Given the small amount of detail on his life and machine, a small team of experts have been researching these details on behalf of the Collection for some years. See:
Percy E. Ludgate Prize in Computer Science (extensive background and research document on Ludgate), and related folder
An exploration of the life of Percy Ludgate: slides without animation and with animation, and audio and video presented at the West Cork History Festival 2019, Skibbereen, Ireland, and a podcast recorded there

Realtime processing of I-LOFAR TBB data
The intention is to continuously (24 x 7 x 365) acquire and process sampled realtime data from the LOFAR radiotelescope installed in Birr Castle, Ireland, in 2017. The data will be acquired from the Transient Buffer Boards (TBB), transferred at high-speed and continuously processed. The processing was initially performed on CAG's high-performance networking, computing and storage infrastructure by Dr.Brian Coghlan and Dr.John Walsh of the School of Computer Science and Statistics, Trinity College Dublin (SCSS, TCD), but is now being performed on a hardware backend at Birr. This work is a joint collaboration between Dr.Coghlan and Dr.Walsh of SCSS, TCD, with Pearse Murphy of the Dublin Institute of Advanced Studies (DIAS), and Prof.Peter Gallagher of DIAS, leader of the I-LOFAR consortium. See:
Draft CAG I-LOFAR science proposal May-2016
Draft CAG I-LOFAR Realtime Event Triggering proposal Jul-2016
Detecting Transient Events In LOFAR Data (Dualta O'Fionnagain's MSc thesis, Sep2016, jointly supervised by Prof.Peter Gallagher and Dr.Brian Coghlan)
RHESSI-2018 Nanosecond Sampling of Solar Radio Bursts with I-LOFAR.s Transient Buffer Boards (TBBs) Jun-2018
INAM-2018 Finding Fast Solar Radio Transients in I-LOFAR transient Buffer Board Data Sep-2018
EWASS-2019 FRP Poster on REALTA hardware backend for I-LOFAR Jun-2019

Home Automation encompassing solar energy and environmental control
Solar Photovoltaic (PV) technology provides free electricity. In a simple installation this electricity will partly or fully power the household, and any excess solar PV power will be exported to the Grid. Some Grids pay good economic returns for exported electricity, but most do not or will soon not do so. In that case solar PV only makes economic sense with a smart installation that maximises the use of the solar electricity. This may then be the basis for smart home automation that encompasses solar energy and environmental control. See:
Elios4you: A Personal Guide An explanation of what the very limited Elios4you guides don't tell you
IoT Temperature Sensing using an Udoo Neo A simple (only 2 components) long term temperature logger that samples every 10mins and emails daily logs to the user
Elios4you and EcoMulti: a potential marriage made in heaven? An appraisal of whether a Victron EcoMulti AC inline solar PV battery might be integrated with an existing solar PV installation. By late-2018 this became notably less attractive than newer solutions.
Factors affecting Solar PV Battery Systems with Diverters in Ireland An appraisal of factors affecting solar PV battery systems with diverters in Ireland, with examples
Ginlong/Solis hybrid inverter RS485 Modbus protocol English translation of the original Chinese specification, relevant to their RHI-3K-48ES, RHI-3.6K-48ES and RHI-5K-48ES Energy Storage Inverters
Domestic SolarPV in Ireland, issues, vision, targets An analysis of the current policy environment in Ireland, with recommendations for regulations, standards, and domestic and industry incentives promoting battery-based solar PV DER (microgrids)
How to meet EN50438-IE with non-certfied solar PV products in Ireland. A guide to the use of the Ziehl UFR1001E grid protection device, to 'Irish settings' for the device, and to outline installation details.

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© 2016 Brian.Coghlan@cs.tcd.ie