© National Instruments Corp. 19 NI 9795 User Guide and Specifications
NI WSN-32xx nodes configured as end nodes are designed to be
run from battery power while routers are designed to use external
power at all times to send, receive, and buffer messages to and from
end nodes.
Data Transfer in the NI WSN Network
The NI WSN system is built on a low-power, reliable
IEEE 802.15.4 network. In order to save power and increase
reliability, this network delivers a maximum theoretical throughput
of 250 kbps. This correlates to a typical maximum rate of 1 sample
per second per node.
Measurements taken with NI WSN-32xx nodes are single point,
waveform, and string based depending on the hardware being used.
Nodes have an onboard buffer to handle lag in the network
conditions or reformation of a network. If the lag is greater than
several minutes or a node is shut down to power loss, the buffered
data is considered to be lost, meaning there is no way to retrieve
past data from the device.
Configuring Your NI WSN System
As discussed in the Mesh Networking section, creating a reliable
and efficient wireless sensor network requires an understanding of
the physical environment the network will reside in, as well as an
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