|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.
Ken Novak's Weblog
Saturday, January 31, 2004
Sensors of the World, Unite!
: Good intro to this topic, quoting an Alun Anderson Economist article, and providing other references. "Another information revolution is emerging, driven by billions of tiny and intelligent sensors able to self-organize into scalable and fault-tolerant networks. Taken individually, these sensors have small brains, but using billions of them is an entirely other story." 10:53:57 PM
Wireless Networks as a Low-Cost, Decentralized Alternative for the Developing World
: "Krag's presentation describes the Wireless Roadshow
plan: "By teaching the skills with hands-on training, and at the same time building wireless networks in the countries we visit, we hope not only to raise awareness and heighten skillsets, but also gain the experience necessary to build a central repository of documentation and tools, targeted specifically at the developing world." Tomas Krag and Sebastian Büettrich wrote an O'Reilly introduction to Wireless Mesh Networking . 10:39:08 PM
Thursday, January 29, 2004
Project 25 (P25): Standards For Public Safety Radio Communications
: "TIA is acting as a catalyst for the wireless industry to develop and maintain Public Safety standards for digital equipment and systems that will assist the life-saving and damage-control activities of first-responders at the scene of an emergency or disaster situation. This activity, known as Project 25 (P25), is supported by Industry, Government Agencies and Public Safety Communications Officials alike; including the Department of Homeland Security's National Communications System (NCS), the Department of Defense and the National Telecommunications and Information Administration (NTIA). ..
Recognizing the need for common standards for First Responders and Homeland Security/Emergency Response professionals, representatives from the Association of Public Safety Communications Officials International (APCO), the National Association of State Telecommunications Directors (NASTD), selected Federal Agencies and the National Communications System (NCS) established Project 25 (P25), a steering committee for selecting voluntary common system standards for digital public safety radio communications. TIA TR-8 facilitates such work through its role as the ANSI-accredited Standards Development Organization (SDO), and has developed in TR-8 the 102." Many links to documents and discussion groups on that page and here. Many other groups and projects are easy to find. 4:30:03 PM
Project MESA - Mobile Broadband for Public Safety
: "Project MESA is an international partnership producing globally applicable technical specifications for digital mobile broadband technology, aimed initially at the sectors of public safety and disaster response." 4:26:41 PM
Wednesday, January 28, 2004
Reuters | Latest Financial News / Full News Coverage
: "Dutch firm Philips Electronics said on Monday it was preparing to mass-produce a slim, book-sized display panel onto which consumers could download newspapers and magazines -- then roll up and put away. The 5-inch display, which can show detailed images, can be rolled up into a pen-sized holder. .. Philips said it had created the displays using electronics circuits made of plastics, which power a monochrome display created with technology from E Ink, a privately-held U.S. company from Cambridge, Massachusetts. "We can produce this in batches. It's no longer a research project. We're going to build a pilot line that should be ready in 2005 to make one million displays a year," a spokesman at Philips Research said. Europe's largest maker of consumer electronics and lighting has already shown prototypes of a glass-based E Ink display which will be in the shops later this year. That sort of screen, used in pocket computers, can cost tens of dollars apiece." E-Ink has been under development for years. It requires much less power than LCD panels and works better outdoors or using ambient light, so it's likely to have wide application where power is short. Black and white only for now. 12:38:08 PM
Monday, January 26, 2004
Bhutan VoIP Project Report
: "A pilot project to use wireless and VoIP technologies to deliver communication services to rural areas in Bhutan, a small Himalayan Kingdom, was completed with encouraging results. Once initial problems with radio interference from other sources were solved the 802.11b radio network became reliable. This allowed the VoIP equipment to be tuned to accommodate the more variable nature of a wireless network as compared to a wired one. International calls through the PSTN were hampered by a slightly non standard R2 protocol spoken by the local switch. This underscores the importance of adhering to open standards when many subsystems must work together." 3:44:32 PM
Sunday, January 25, 2004
Best Western hotels to install free high-speed Internet chainwide
: "Best Western International Inc. will offer free high-speed Internet in all 2,300 of its hotels in the United States, Canada and the Caribbean, its chief executive said Friday. "It's the No. 1 amenity requested by virtually everyone, especially businesspeople, said Tom Higgins, CEO and president of the Phoenix-based hotel chain. "High-speed Internet for free is going to be where it's at."
Only about 10 to 15% of Best Western hotels currently have high-speed access, but Higgins said it will be available chainwide by September. "Come Sept. 1, when you see a Best Western sign, you'll know they have it. That's the comfort we want to provide for the traveling public," he said.
In each of the hotels, at least 15% of the guest rooms and public areas will have high-speed Internet access. The company will also make wireless cards available at the front desk for guests who are in rooms without hard wiring. Additionally, the hotel's corporate office will make a toll-free number available around-the-clock for guests who have difficulty connecting to the Internet.
Higgins predicts that other hotels will also be forced to offer free service eventually because travelers have become so dependent on e-mail and Internet services. "Everybody is going to be here. It's just a matter of how soon they're going to get there," he said. " 11:30:50 PM
Wednesday, January 14, 2004
Nanotubes Detect Nerve Gas
: "Naval Research Laboratory researchers have found that carbon nanotubes are sensitive to extremely small concentrations—less than one part per billion—of chemical nerve agents. .. The researchers worked out a simple procedure to fabricate nanotube-based sensors from random networks of single-walled carbon nanotubes and used a prototype to detect dimethyl methylphosphonate, which simulates the nerve agent sarin. The networks of nanotubes form transistors; the presence of a nerve agent increases the nanotubes' resistance to electricity.
The sensors are very inexpensive, require very little power, and could be used to detect sub-parts-per-billion concentrations of nerve agents, other chemical warfare agents, and other toxic chemicals, according to the researchers. They made a prototype sensor contained in a quartz tube one-eighth of an inch wide by two inches long.
The researchers also showed that the nanotube network sensors can be combined with filters coated with polymers that are sensitive to certain chemicals to make sensors that detect specific chemicals. Arrays of the sensors could be incorporated into handheld or remotely-operated devices designed to detect a variety of substances, according to the researchers. Carbon nanotube sensors could become practical within two to five years, according to the researchers. " 10:16:58 PM
Thursday, January 08, 2004
Monitoring the Beach House: How remote Internet sensors are being deployed in second homes: "OzVision, an Israeli company that opened an office in Massachusetts in 2002, offers closed-circuit-video and still-photo systems. (The images generated by these kinds of systems can be monitored by the homeowner or by a security company.)" Temperature and security sensors, fire alarms, and remote control of air conditioning or heating are also mentioned. Luxury yachts get specialized systems. Assurance of electric supply is sometimes difficult, so notices of power loss are also important.
Property managers have systems: "Using a Web- and telephone-based program, Timothy Cafferty, the president and general manager of ResortQuest Outer Banks can now warn thousands of people at once that a hurricane is coming, giving them 90 seconds of evacuation instructions over the telephone and requesting that they press a button to confirm that the message was received." They used to make up to 4800 phone calls per hurricane. 11:37:02 PM
Friday, January 02, 2004
Boost for rural UK broadband: "Just before Christmas, the Department of Trade and Industry said it would let internet service providers and community groups use the 5.8Ghz Band C spectrum. .. The Ministry of Defence had resisted opening up the spectrum because it has radar systems operating in Band C of the 5GHz part of the spectrum.
As from 5 January, groups can apply for licences to use the radio frequency from the new communications regulator, Ofcom. The fees have been kept deliberately low, with a cost of £1 per net terminal, subject to a minimum of annual charge of £50. " 9:31:23 AM