Windmill Software Ltd
Data Acquisition Intelligence

March 2009

The Newsletter for PC-Based Data Acquisition and Control
Issue 128         March 2009
--------------------ISSN 1472-0221----------------------

Welcome to Monitor, the data acquisition newsletter.  I
hope you find it useful, but should you wish to remove
yourself from our mailing list please go to

* Windmill Notes: 5 Ways to Speed up Data Acquisition
* New Wireless Connection to be launched: Bluetooth Low Energy
* DAQ News Roundup

Windmill Notes: 5 Ways to Speed up Data Acquisition

Windmill software can collect data from some instruments
and devices at up to 200 samples per second.  However,
when communicating over RS232 it can go no faster than
5 samples per second per channel. Here are 5 tips to
speed up the data acquisition to Windmill's maximum.

1. Make sure your sampling interval is not less than
  0.2 seconds.

2. If you have set alarms with SetupIML, remove any you
  do not need.  Continual checking for alarm conditions
  can slow down data acquisition.

3. If you do not need all the data channels you are
  collecting with Windmill Logger, then reduce the
  number of channels Logger is storing.

4. Log data without displaying it on screen.  In
  Windmill Logger select the Settings menu and turn off
  the "Display data on screen" option. No data will be
  shown in the Logger window, which in some circumstances
  will allow logging to proceed at a faster rate.

5. Close any software that is running that you are not
  currently using.

More on Windmill
Windmill Data Acquisition software

Tips on Using Windmill

New Wireless Connection to be launched: Bluetooth Low Energy

Bluetooth allows up to seven devices to be monitored
wirelessly over short distances, typically about
10 meters.  In April a new Bluetooth standard is to
be publicly presented in Japan: Bluetooth Low Energy.

Devices housing Bluetooth Low Energy technology will
consume a fraction of the power of classic Bluetooth
enabled products.  In many cases, low energy devices
will operate for more than a year on a tiny button
cell battery without the need for recharging.  This
strengthens the technology's ability to provide
wireless connectivity for smaller devices.

For example, yachtswoman Luce Molinier currently uses a
Bluetooth system to track her heart rate, body
temperature and caloric consumption, as well as
GPS positional data, as she trains for a 6800 km race.
Using Bluetooth low energy sensors will solve the
problem of having to recharge the sensors during
a race.

Bluetooth Low Energy does not compete with existing
Bluetooth, nor does it extend existing Bluetooth
directly. Instead it is a separate method of
transmitting and receiving small amounts of data that
can reside alongside existing Bluetooth software, and
share some elements such as the Bluetooth radio
and antenna.

According to a new study by ABI Research, in 2010
nearly 30 million Bluetooth Low Energy chipsets will
be shipped.  If they are correct then this will be an
extraordinary adoption rate for a new technology.

Further Reading:

Bluetooth SIG
ABI Research
Other Wireless Technologies

DAQ News Roundup

Welcome to our roundup of the data acquisition and
control news.  If you would like to receive more
timely DAQ news updates then grab our RSS newsfeed
at  Read for notes
on how to display the news on your own web site,
read it via e-mail, mobile phone or in your browser.

IEEE Approves 1902.1 Standard for Wireless Visibility Networks
  The IEEE has approved a new wireless standard which
  improves upon the network protocol known as RuBee.
  RuBee is a bidirectional, on-demand, peer-to-peer,
  radiating, transceiver protocol operating at
  wavelengths below 450 KHz. This protocol works in
  harsh environments with networks of many thousands
  of tags and has an area range of 3 to 15 m.
  Source: IEEE Standards Association

Wireless technology could boost hand hygiene compliance
  A new wireless system tracks the use of hand hygiene
  dispensers when health care workers enter and exit
  patient rooms. The system uses ZigBee technology,
  which works with low-power devices. Workers wear
  small, pager-sized badges to monitor their use of
  hand hygiene dispenser stations prior to entering
  patient rooms. Data is recorded and processed in the
  badges rather than relying on a network.
  Source: The University of Iowa News Service

Pressure Transmitter Market to Grow at 3.3%
  Driven by a stronger emphasis on plant asset
  management and safety applications, the worldwide
  market for Pressure Transmitters is expected to grow
  from $2.38 to $2.798 billion in the next 5 years,
  according to a new ARC Advisory Group study.
  Source: ARC Advisory Group

Faulty Sensor causes Arctic Sea Ice Error
  A faulty sensor has caused a slowly growing
  underestimation of Arctic sea ice extent by the
  National Snow and Ice Data Center (NSIDC).  The
  underestimation reached approximately
  500,000 square kilometers (193,000 square miles).
  Source: SCUBA News

Pollution Radar Provides unprecedented picture of Urban Smog
  Scientists have developed a sophisticated new air
  quality measuring device that can act as a pollution
  radar over cities. The compact imaging spectrometer
  operating in the ultra violet and visible (UV/VIS)
  part of the spectrum has a number of potential
  applications on satellite platforms.
  Source: University of Leicester

* Copyright Windmill Software Ltd
* Reprinting permitted with this notice included
* For more articles see

We are happy for you to copy and distribute this 
newsletter, and use extracts from it on your own web site 
or publication, providing the above notice is 
included and a link back to our website is in place.

An archive of previous issues is at
and an index of articles at

Windmill Software Ltd, PO Box 58, North District Office,
Manchester, M8 8QR, UK
Telephone: +44 (0)161 833 2782
Facsimile: +44 (0)161 833 2190
E-mail: [email protected]


To receive Monitor every month please fill in your e-mail address below. We will not pass your address to any third parties, nor send you any unsolicited e-mail.

Subscribe Monitor

You will receive an e-mail confirming your subscription, with details of how to download the free software. If you don't receive this then your spam filter may be blocking our message. Make sure it is set to accept messages from [email protected] If you have problems contact the Editor.

Previous Issue Next Issue