1. MediaCups: Experience with Design and Use of Computer Augmented Everyday Artefacts
M. Beigl, H-W. Cellersen and A. Schmidt
Telecooperation Office, University of Karlsruhe
Computer Networks, Special Issue on Pervasive Computing, Elsevier, 2001

2. Contents Introduction Related work Artefact computing model
Augmenting everyday artefacts: the MediaCup
Spatial Context Communication: RAUM
Conclusion & Reference

3. Introduction Computer: secondary artefact Digital artefacts:
computer-augmentation
Limited computational ability: memory, processing power
Sharing of information and awareness of the surrounding real world environment
Location- and context-awareness

4. Related Works Computer-augmentation of artefacts
Embedding of context-awareness in artefacts
provision of an infrastructure for communication and artefact inter-working
RFID (Radio Frequency Identification)
TTT (Thing That Think)
HAVi and Jini

5. Artefacts Computing Model
Everyday artefact
Digital artefact
Do not compromise their original function and use
Enable new functionality to emerge form digital artefact networking
Artefact context
Spatial context communication
Make information about themselves available for computing within a local environment

6. Implementation Microchip PIC 16F84 microprocessor
Motion detection: three metal ball-switches
Temperature sensor: Dallas DS1621 chip
Power: two large capacitors, wireless charge
Motion: stationary, moving, drinking out of the cup, fiddling with the cup
Temperature: filled up, cooled off, and current temperature

7. Network Infrastructure
MediaCup: Infrared
Backbone: CAN (Car Area Network)
Broadcast their context as event message every two seconds
Local Ethernet: broadcast UDP packet

8. Spatial Context Communication
RAUM: location-based Relation of Application objects for communicating Ubicomp event Messages
Location-oriented & spatial-dependent
Service-oriented

9. Other Networking Artefacts
MediaCup activity viewer
Smart door: people name
PC-based watch
Coffee machine

10. Conclusion & Reference
MediaCup: investigating computer-augmentation of everyday artefacts and communication infrastructure for the evolution of artefact computing
Reference
“Using spatial Co-location for Coordination in Ubiquitous Computing Environments,” 1th Int. Sym. Handheld and Ubiquitous Computing (HUC99) Karlsruhe, Germany, 1999
“Implicit Human Computer Interaction Through Context,” 1th International Symposium on Handheld and Ubiquitous Computing (HUC99), Karlsruhe, Germany, 1999