RED Systems: to be desired: final questions

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More Robust
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Robust Telemetry
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	Correct Infos?
	Fatal Consequences
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	Final Questions
Synergy Effects

To Be Desired > Robust Telemetry

Final Questions

Striving for really fast message transfer in a seismic alert system is more than a question of elegance. Employing public telecommunications networks is a logical solution because of the ease of implementation (with commercial off-the-shelf products) and its initial cost-effectiveness.

But the question remains: how much delay or data bias can be tolerated in a real time emergency management tool after a major urban earthquake has occurred?

Further: is there a field-proven radio technology on the market that would be fast enough and robust enough to allow early warning in addition to real time data collection?

A logical reaction would be to look for a wireless network technology—highly robust and redundant—to maintain first-class performance even after the "Big One." An ideal radio network would be dedicated exclusively to fast emergency messaging, and would cover a radio horizon of 100 km (60 miles) radius.

In addition to the many options based on VSAT or unlicensed spread-spectrum technology, there is at least one terrestrial alternative. This candidate was first described in a paper contributed to an international congress on radio sensor technology:
Environmental data collection and similar radio links to provide one-way message transfer: how to cover a maximum area with battery-powered transmitters?

A digital SkyLINK base station capable of colecting data from sensors installed at a distance of more than 100 km.

German MTT/AP Chapter and German UFFC Chapter

ENVIRONMENTAL DATA COLLECTION AND SIMILAR RADIO LINKS TO PROVIDE ONE-WAY MESSAGE TRANSFER: HOW TO COVER A MAXIMUM AREA WITH BATTERY-POWERED TRANSMITTERS?

V. Genrich, R. Dielmann, and H. Mayer, Genitron Instruments GmbH, Frankfurt, Germany

Paper presented at the International Workshop on "Commercial Radio Sensor and Communication Techniques" in conjunction with MIOP 97 at Stadthalle Sindelfingen, April 21, 1997

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2.4.3.5

Another contribution to dialogue@red-systems.com