 
											The pressing of a key, the pulling of a lever, and a pressurized message is sent at mind-boggling speeds through a network of hoses, only to reappear on a remote terminal at the other end of the building. For 30 years, this has been the promise of Safety-Flo’s Airnet. It is about to become a reality.
Based on cutting-edge Arpanet research, Airnet’s revolutionary RT/PERP communications protocol will allow hosed individuals equipped with terminals, compressors, and storage tanks to exchange information. The uses of such a network are almost unlimited. Academics on different floors of a building will be able to compare notes. Military officials will be able to better communicate with their chain of command.
Update: EZ-Lite series of portable Airnet terminals now available
 
											To prove this new technology and improve our civic profile, Safety-Flo has volunteered to make nearby Otisburg the world’s first hosed community. Needless to say, town residents are excited. Meanwhile, the airnet data center beneath the R&D building continues to push the known limits of compressed air storage technology: in March the research team announced they had succeeded in storing nearly seven kilo-bytes of information for over an hour. A separate team is working on retrieving the information.
*A kilo-byte, equal to 1000 bytes, would cover several small pieces of paper if we used an eight letter alphabet. The number of pieces of paper that could be diverted to other uses should represent a useful environmental advantage at some point in the future.
How it works
Essentially, each airnet user will have a unique three digit (eleven byte) “address” composed of a series of timed bursts of compressed air, called a PERP locator. To direct a message to a particular user, your message will be prefaced by a “header” with the recipient’s PERP locator, followed by the message, followed by your PERP locator. In this way the recipient knows whom to respond to, should he desire to do so.
This series of burst patterns will travel through the hose network, being amplified and redirected by each node it encounters. Each node will contain a set of pattern filters (perforated steel baffles) that will try and match the destination PERP locator with a known profile. In this way the message should reach its destination, provided the burst signal holds its strength over the hose distance travelled (HTD). Current HTD limits are about 10 feet, using monaxial 2 inch diameter hose. Greater efficiencies are predicted as development and funding continue.
