WSN-3202 NI [National Instruments Corporation], WSN-3202 Datasheet - Page 3

• Manufacturer Part Number: WSN-3202
• Description: Wireless Sensor Network Programmable Analog Input Measurement Nodes
• Manufacturer: NI [National Instruments Corporation]

Wireless Sensor Network Programmable Analog Input Measurement Nodes
Figure 3. Extracting NI WSN Measurement Data Using LabVIEW
digital channels as well as other node attributes such as link quality, battery
voltage, and whether a node is configured as a router or end node. The LabVIEW
Project interface also offers access to node property configuration utilities.
You can modify node sample intervals, define the analog and digital channel
parameters, and provide aliases.
Node Programming
You can customize the behavior of programmable NI WSN measurement nodes
with LabVIEW WSN Pioneer. Use this module to perform custom analysis, embed
decision making on NI WSN measurement nodes, and extend battery life by
optimizing node behavior.
your NI WSN measurement nodes while increasing performance and flexibility.
By default, a node transmits every acquired value back to the gateway at the
specified sample interval; however, in many applications, it is sufficient to simply
monitor a given input for a threshold crossing or average values over a period of
time. In these applications, powering the radio to transmit every acquired sample
uses excessive power and reduces battery life. With LabVIEW WSN Pioneer,
you can add intelligence to the node to transmit data only when required.
Additionally, you can monitor battery voltage and network status as well as
modify the sample interval of the node to optimize behavior for specific
operating conditions.
acquires and transmits data. Exact sample rates depend on how many channels
you are sampling, the analysis performed on each sample, and how many
samples are transmitted back to the host. Without transmitting samples, the
programmable WSN-3202 node can achieve a 35 Hz sample rate on one channel,
while the programmable WSN-3212 can achieve a 4 Hz sample rate on one
channel. Refer to the LabVIEW WSN Benchmarking white paper on NI Developer
Zone for more information on increasing sample rates.
Using the drag-and-drop LabVIEW variables, you can monitor the analog and
With LabVIEW WSN Pioneer, you can significantly increase the battery life of
This also helps you achieve higher sample rates by customizing how the node
operations, you can preprocess data acquired by NI WSN measurement nodes.
A variety of analog and digital sensors can interface directly with these nodes,
and you can use LabVIEW WSN Pioneer to scale and convert raw sensor data
into meaningful engineering units before transmitting.
NI WSN measurement nodes, so decisions can be made autonomously
without transmitting the stimulus and response to and from a host computer
or embedded controller. You can use the digital output lines on an NI WSN
measurement node to actuate relays and perform simple on/off control. For
example, a programmed node can turn on a fan when a temperature threshold is
exceeded, which reduces response time and increases reliability by removing the
need for host interaction.
NI WSN Applications and Architectures
With NI WSNs and access to the full breadth of NI platforms through LabVIEW,
you have the flexibility to create simple, stand-alone wireless monitoring
networks or completely integrated wired and wireless measurement solutions.
In a simple architecture, as seen in Figure 4, the WSN measurement nodes
acquire data and communicate wirelessly to the central gateway, which provides
a wired Ethernet connection to a Windows or LabVIEW Real-Time host controller
where you can log, analyze, process, and present your data.
Figure 4. NI WSN systems provide flexible connectivity to Windows or LabVIEW Real-Time
host controllers.
and enhance your measurement capabilities. You can complement your NI WSN
with programmable automation controllers (PACs), vision systems, or even
human machine interfaces (HMIs) to create a fully integrated solution that meets
your unique application needs (see Figure 5).
Using a subset of LabVIEW analysis functions and floating-point math
With LabVIEW WSN Pioneer, you can also embed decision making on
Furthermore, you can combine NI WSNs with other NI platforms to customize
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