MicroStrain, Inc.
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In the
Datalogging
sampling method, you may trigger a datalogging session on any
number of SG-Link® OEMs at the same instant by broadcasting a datalogging command
from one base station to all the nodes. In this case, all nodes and the base station operate
on the same frequency. All nodes would receive the command and independently
perform their datalogging session. Each node would be downloaded separately.
In the
Streaming
sampling method, you may trigger a streaming session on up to 16 SG-
Link® OEMs at the same instant by broadcasting a streaming command from multiple
base stations to each base station’s corresponding node. In this case, a base station would
be deployed for each node and each pair would be set to a separate frequency so as not to
conflict with other pairs. All nodes would receive the command and independently
stream their data to the paired base station. Agile-Link™ software is capable of handling
up to 4 node/base station pairs; application developers would be able to operate up to 16
pairs in this fashion. This limit of 16 results from the number of available frequencies
within the band spectrum of the SG-Link® OEM radio.
In the
Low Duty Cycle
sampling method, multiple SG-Link® OEMs can share the same
frequency since each node is not transmitting continuously. You may start a low duty
cycle session on any number of SG-Link® OEMs at the same instant by broadcasting a
low duty cycle command from one base station to all the nodes. All nodes receive the
command and independently begin transmitting their low duty cycle data. The base
station receives the data from all the nodes and passes it on to the host software.
It should be noted here that when using multiple nodes with one base station in low duty
cycle mode, the total number of nodes that can be simultaneously sampled is dependent
on the number of active channels and the sampling rate. As the number of active channels
increases and/or sampling rates increase, the total number of nodes that can be sampled
falls. Likewise, as the number of active channels decreases and/or sampling rates
decrease, the total number of nodes that can be sampled increases.
In the
High Speed
Streaming
sampling method, you may trigger a high speed streaming
session on up to 16 SG-Link® OEMs at the same instant by broadcasting a high speed
streaming command from multiple base stations to each base station’s corresponding
node. In this case, a base station would be deployed for each node and each pair would be
set to a separate frequency so as not to conflict with other pairs. All nodes would receive
the command and independently stream their data to the paired base station.
MicroStrain’s High Speed Streaming software is capable of handling only 1 node/base
station pair; application developers would be able to operate up to 16 pairs in this fashion.
This limit of 16 results from the number of available frequencies within the band
frequency of the SG-Link® OEM radio.
The analog base station has an additional feature relating to sampling methods. It
normally is configured to support up to 8 channels of data from a single node. However,
it may be configured to support up to 8 nodes, that is to say, it may be configured to
handle one channel of data from up to 8 individual SG-Link® OEM s. Please refer to the
