Updated: 11/24/2005; 11:51:49 PM.

Wireless remote data
Technologies and sample systems that gather sensor data across distances, usually via radio links. This includes general telemetry and SCADA (supervisory control and data acquisition), especially for gathering data about wildlife, natural resources, and distributed energy systems.

daily link  Tuesday, April 29, 2003

EPLARS: Some humanitarian and medical units in Iraq are using this self-organizing IP network to communicate in the field.  The radios have a 40-mile radius and are typically mounted in humvees.  "The Enhanced Position Location Reporting System (EPLRS) provides Marine Forces with a critical command and control tactical data distribution network. EPLRS links the dynamic Marine Air-Ground Task Force (MAGTF) Command, Control, Communications, Computers, and Intelligence (C4I) tactical data system architecture with a robust, user-transparent, automatic relaying, and automatic rerouting communications network."  6:06:22 PM  permalink  

Low power windows terminals:  This study and another from wyse, both in 3Q 2001, provide some info:
  • winterm unit only: 8 watts
  • add lcd screen: add 18 watts, 26 watts total
  • CRT is 85 watts instead of 18 (the first study has 85 vs 29)
  • PC is 85 watts instead of 8 (the first study has 70 vs 10)
  • A terminal server PC is 100-140 watts, perhaps 5-10 users.

Certainly 3x-4x lower consumption with an LCD instead of CRT (no surpise there), and 7x-10x less for winterm versus PC assuming some server is needed anyway(again, no surprise for smaller power supply and no fan or disk).   With one server per 8 users, the advantage of winterm vs standalone PC is about 3x.

  12:03:26 AM  permalink  

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Copyright 2005 © Ken Novak.
Last update: 11/24/2005; 11:51:49 PM.