19-10-2010, 10:44 AM
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Data Loggers and Bluetooth Wireless Communications
Data Loggers and Bluetooth Wireless Communications
By Scott South
Published in Pollution Equipment News, December 2004 (page 4)
With the increasing use of data loggers to collect information in industrial and
environmental monitoring applications, has come a corresponding increase in the use of
wireless technology to retrieve the information. The latest of this type of technology to be
introduced is called Bluetooth. Its uses are as varied as the number of data monitors
located across the world.
What is Bluetooth?
The name “Bluetooth” comes from the 10th century Danish Viking king, Harald Blåtand
II (or Bluetooth, in English). The king united and controlled Denmark and Norway, hence
the inspiration of the name to unite products through Bluetooth. Bluetooth is a registered
trademark owned by the Bluetooth Special Interest Group (SIG), Inc., which established
the industry standards for all Bluetooth communications.
A simple two-way wireless (radio) solution that allows different electronic devices to talk
to each other without using cables or infrared, Bluetooth is the codename for a
technology specification for low-cost, low-power, short-range radio links between mobile
PCs, mobile phones, and other portable electronic devices.
There are primarily two classes of Bluetooth. Class 1 is designed to transmit / receive
approximately 100 meters, and Class 2 is a transceiver of approximately 10 meters.
Bluetooth’s low power operations and industry certification standards permit for easy
connectivity between any Bluetooth enabled devices.
An adopter member of the Bluetooth SIG, Stevens Water Monitoring Systems, Inc.,
headquartered in Portland, Oregon, designs and manufactures both a certified Class 1
Bluetooth-enabled data logger and a certified Class 1 RS232 / RS485 Bluetooth serial
adapter for the industrial and environmental monitoring market. Its data loggers are used
in a number of industries, such as hydrological and meteorological monitoring stations,
wastewater, golf courses and vineyards.
for more ::->
http://stevenswatertelemetry_com/bluetooth_info.aspx
http://stevenswatercatalog/products/telemetry_com/manual/UsersManual_TheShark%20Rev%201r27.pdf