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By Bob Paddock at 04/17/07 20:32
"Meraki offers its Linux-based "Mini" mesh router for $50, and expects to ship a $100 outdoor model later this month. Volume discounts are also available, with a 100-unit "large building and districts" package going for $4,900, according to the company.The Meraki routers can be used singly, but are really designed for installation in clusters, with multiple routers sharing a single broadband Internet connection. The company suggests connecting every 10th router to the Internet, to "boost the signal." Clusters of Meraki routers create a "mesh" of overlapping radio coverage areas similar to the "cells" found in cellular radio networks. The mesh network fabric extends the range of a single network drop, among other benefits. ... Additionally, an available "Dashboard" application helps users configure and manage their Meraki-based mesh networks, with nifty interface screens such as the Google Maps..." Source: Linux Devices full article at http://www.linuxdevices.com/news/NS4963484100.html. My own personal home system is Gentoo Linux. Tags: mesh router • cluster • linux •
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By Bob Paddock at 04/17/07 20:11
"This article discusses the design of a Bluetooth data logger that takes data from an AS1530 12bit ADC via an MCU and a Bluetooth link to a PC, which collects the data in a spreadsheet."Source: embedded.com Tags: bluetooth • data logger •
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By Bob Paddock at 04/15/07 16:02
Our paper, "A Technology Review of Smart Sensors with Wireless Networks for Applications in Hazardous Work Environments", started in early 2005. It was finally published on April 1st 2007. Why did it take two years to see the light of day?The approvals were lost in the bureaucratic never-never land then finally found. Next, the paper was very misunderstood because they saw the word "wireless" which they associated with wireless communications needed for disasters such as Sago, rather than for Sensors Networks, that the paper was initially aiming at. As two years is a long time when dealing with technology, I set up the site http://www.wearablesmartsensors.com/ to augment the paper with new information that has become available since 2005. I want to thank my coauthors John Sammarco, Edward Fries, and Vijia Karra, who have put far more time and effort in to the paper that I ever could have. Tags: sensor networks • wireless networks • hazardous work environments • smart sensors •
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