|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.
Monday, March 03, 2003
: "The PowerPad 160 is the ultimate notebook battery, giving you up to 6 times more power than ever before. With the highest energy density of any rechargeable battery commercially available, you won't find this level of performance anywhere else! The PowerPad's SuperPolymer Lithium Ion technology keeps you going with more than a full day of portable power." Lists for about $500. 10:12:01 PM
Alvarion wireless cusotmer stories: "Alvarion has 50% of the global market share for fixed wireless broadband services. Here are three of its customers:
- Widwest Wireless (commercial business). 300,000 cellular subscribers in a "property model" -- they bought a license to spectrum. They've setup a subsidiary, ClearWave to handle the wireless. Covers 54 communities in 137 townships in Minnesota. 50 wireless broadband sites using 2.4GHz, usie 5GHz for backhaul. 1,200 customers in first month. Serving towns with as few as 270 people. It costs about $700 to connect a new customer, and the monthly cost for wireline and wireless backhaul runs about $14,500. Installing a new cel costs $2-$6K -- each tower runs about 180 customers. Towers run atop water-towers or piggyback on their cellular towers. Towers are profitable about 18 months after going up.
- Owensboro Municipal Utility (publicly owned nonprofit). Serve a market with cable, DSL, and fixed-wireless competition. For rural communities to remain economically viable, they must have broadband. Hence a nonprofit with very low rates. Largest municipal utility in Kentucky. Operating in heavily forested, hill country. Installation is free, residential serivce is $25/month (512k down/128k up).
- City of Pratt, Kansas Police Dept (civil public safety operator). Intention is to connect to departmental LANs from vehicles (how do you update the virus definitions in a cop car's PC?) and to replace cellphone with VoIP. 60 sqmi coverage. Gaining 2h productivity/officer/day -- saving $21k/month