1 / 11

Contextual information presentation for optimal learning: initial study

Contextual information presentation for optimal learning: initial study. Russell Beale russell@russellbeale.com School of Computer Science, University of Birmingham & RT Sailing. A typical race crew of eight people.

corina
Download Presentation

Contextual information presentation for optimal learning: initial study

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Contextual information presentation for optimal learning: initial study Russell Beale russell@russellbeale.com School of Computer Science, University of Birmingham & RT Sailing

  2. A typical race crew of eight people • bow - responsible for setting new sails on the front of the boat, and sorting out any tangles that occur at that end of the yacht • mast - helps bow with sail setting, and hoists the new sails as required • pit - controls all the ropes in the cockpit, particularly the controls that allow the sails to be lowered, and the rope clutches that hold sails up once they've been hoisted

  3. Genoa grinder Genoa trimmer Keyboards Mainsheet trimmer mast bow helm 1 1 1 2 2 2 3 3 4 Navigator/tactician 4 3 5 6 5,6 • trimmer - responsible for setting the front sails correctly • grinder - provides the muscle power to winch in the sails • mainsheet - sets and trims the mainsail (the largest sail) • helm - steers the boat • navigator/tactician - decides which way to sail the boat Roles and how they change sides upwind Boat-based displays

  4. Information taxonomy Level 0: No instruments Personal feel, intuition, etc. Common in dinghy sailing, can be very effective if well trained Level 1: Direct Direct readings of boat speed (spd), apparent wind speed (aws), apparent wind angle (awa), magnetic heading (magnetic compass) Level 2: Process level 1 data with level 1 data to give true wind speed and true wind angle (aws, awa, spd, dir) plus vmg (vel + awa) Level 3: Add electronic fluxgate compass Provides usable direction data – combine to give true wind direction (twa + dir) Level 4: Add GPS Provides cmg, sog, vmg to waypoint Level 5: Process data with GPS Tide/current vel (speed and direction) from boat through water c.f. over ground.

  5. Level 6: Computer storing/presentation of data Provides polars, maximum performance figures, GPS/chartplotting Level 7: VPP/polars give target speeds/angles Tidal and weather prediction-based routing Level 8: Trim/re-representation Represent technical information in more usable form (% off optimum), trim or point/bear off Add graphics – history information – allows level 0 predictions/understanding Level 9:Tactical Add interpretation – current wind shift information, trend Level 10: Prediction when to tack, duration of shift, routing via windshifts trim advice Strategic – longer-term stuff for race

  6. System architecture inputs processing Wind speed/angle Basic processor (to Level 4) Advanced processor (Levels 5 - 7) Laptop (higher levels) Depth/speed through water Magnetic heading GPS (speed/heading over ground) Bluetooth Tethered display outputs Wireless Lan Cockpit display Mast display Wireless display Wireless display Re-representations

  7. Architecture II • Standard instrumentation used • B&G Hydra and Hercules processors • Seatrack software • Custom re-representation software (Java, C++) • Custom prediction software • IEEE 802.11 wireless LAN • Standard bluetooth

  8. Output devices • Hercules displays (digital) • Mast displays - large digits • Wireless screen • Compaq IPAQs (wireless and bluetooth-enabled) • Laptop screen (below deck)

  9. Why yacht racing as a test platform? • Stressful environment • close-quarter racing demands high levels of concentration • physically hard - racing often occurs in difficult conditions • Limited information display capability • shortage of accessible places to show information • participants are often short of time to process information

  10. Different roles require different information • some have time to understand complexities • some need critical information immediately • some have ongoing background needs • Participants react differently • some sailors naturally use data effectively • some tend to ignore it • provides varied user base • Pertinent information presented appropriately • need access to the right information in order to learn and improve

  11. Thanks to... • Project supported by B & G • EPSRC • University of Birmingham • RT Sailing • and the testers • 2001: Mad Hatters • 2002/2003: Xcentric Crew

More Related