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LocoMedia Pinger and Solar Power Project - DRAFT


To make pingers suitable for deployment on site at the Merchant Venturers building and at HP labs bulding 3. Ultimately we need to be able to mount LocoMedia demonstrations for visitors to both sites without the need for them to go outside and wander large distances. We also need a viable internal location sensor technology to complement GPS and to allow us to explore sensor fusions in a real case.

To understand the potential of solar panels to power elements of a wearable computer or its supporting infrastructure.


Initially we will build two pinger receivers and wire them into the two cyberjackets (once second CyberJacket is ready). Next we develop a mains power based pinger transmitter for use in offices or other areas where a suitable mains outlet is available. In addition we would like to build a pinger transmitter that could hang from electric light fittings and utilise the light source for power via a small solar panel. This would be suitable for internal areas where lights tend to be left on during working hours, for example, in lifts and some parts of corridors.

Following this we will conduct experiments to measure power output from shoulder pad-mounted panels (or any other wearable design we can dream up). Details of this are TBD.

If time permits we will re-examine the problems in making a wearable pinger transmitter. There are big problems with noise in these devices. Perhaps a high power, low-lifetime badge will be our best solution. This would allow us to explore software applications that rely on identifying companions.

How many pingers would like to build? This depends on the success of the light-powered pingers.If these can be mounted easily and require little light, then we may build more of them.

Pinger receivers: 2-3?

Light-powered pingers: 2-8?
Mains-powered pingers: 8-20?
Battery-powered pingers: 0-12?

Total pinger transmitters: 10-40?


This project is to be supervised by Phil Neaves and conducted by Tom Foley.



Feasibilty Issues

Current detailed issues concern the permissible dimensions of the mains-powered transmitter, and the usefulness of the light-powered transmitter. So:

Merchant Venturers

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HP Building 3

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