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NDAS-N. User Manual.
45
To access the files, open the
Cloud9
development environment web interface available on port
3000
. By default, the login and password is
‘ndasrt’ / ‘ndasrt’
. In the directory tree, uncover the
directory
ndas_rt/sw_modules/seedlink_server/seedlink
Note that the
seedlink.ini
file which contains the basic program settings and file paths is also
generated automatically. If it is required to make changes to
seedlink.ini
, it is recommended changing
the generation script itself which is contained in the
seedlink_cfg.py
file.
When editing a file manually, follow the following rules:
●
The stations names (the
name
attribute of the
proc
element) must match the
Station ID
fields
that are specified on the module configuration page in the stations list;
●
The sampling rate (the
rate
attribute of the
input
element) must match the actual frequency of
the incoming signal. In addition, the frequency specified on the module configuration page must
also match the actual frequency of the incoming signal;
●
The primary channels names (the
name
attribute of the
input
element) have values of
ch1...ch6
●
The auxiliary channels names are given in the table in the Auxiliary Channels section. The
sampling rate of auxiliary channels is always equal to 1/10 Hz.
Below is an example of the
streams.xml
file in which the first three channels of the data logger are
transmitted to the DN stream unchanged at a frequency of 1000 Hz, and the second three channels are
decimated to a frequency of 100 Hz by the F260 filter and transmitted to the HH stream. This approach
is useful when a seismic accelerometer and a broadband seismometer are connected to one 6-channel
data logger.
<?xml version="1.0" ?>
<streams>
<proc
name="ND01">
<tree>
<input channel="Z" location="00" name="ch1" rate="1000"/>
<input channel="N" location="00" name="ch2" rate="1000"/>
<input channel="E" location="00" name="ch3" rate="1000"/>
<node
stream="DN"/>
</tree>
<tree>
<input channel="Z" location="00" name="ch4" rate="1000"/>
<input channel="N" location="00" name="ch5" rate="1000"/>
<input channel="E" location="00" name="ch6" rate="1000"/>
<node
filter="F260"
stream="HH"/>
</tree>
<tree>
<input channel="A" location="00" name="voltage" rate="1/10"/>
<input channel="B" location="00" name="temper" rate="1/10"/>
<input channel="C" location="00" name="pressure" rate="1/10"/>
<input channel="D" location="00" name="humidity" rate="1/10"/>
<input channel="E" location="00" name="accel_z" rate="1/10"/>
<input channel="F" location="00" name="accel_x" rate="1/10"/>