Image Processing Reference
In-Depth Information
Asset
management
systems
Wireless
vibration sensor
Wireless
vibration sensor
S
S
Plant automation network
S
R
Wireless
vibration sensor
G
Repeater
node
Gateway
S
Wireless
vibration sensor
Gateway
Router
Sensor with router
G
R
S
FIGURE .
Wireless vibration monitoring system.
Latency is not a critical requirement for the application because the data are not part of a process
control loop. Reliability on the other hand is a much more important requirement, because missing
data will result in a flawed view of the actual motor condition.
27.4.2 Communication Standard
WirelessHART was the selected communication technology for the vibration monitoring application.
It is currently the only industrial wireless communication standard (released September ) that
is available, and it is explicitly designed with industrial applications and requirements in mind.
ZigBee is also a currently available wireless communication standard, but was not considered
sufficient for operation in industrial environments, especially an environment such as the one on
an offshore rig. Basically, it lacks effective means with which to alleviate the effects of interfer-
ence and fading. We provide more details on ZigBee's shortcomings in industrial environments in
Section ...
27.4.3 Communication Technology
As mentioned, WirelessHART is the chosen communication standard for the vibration monitoring
application, because it is currently the only available wireless communication standard designed for
industrial applications.
However, because it was just recently released, technology suppliers have not yet provided any
components supporting the standard. This has led to a decision to use a proprietary technology, as
an intermediary solution, until WirelessHART components become available. his leads to another
