Technical notes about ARION project

Preamplifier

c

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle E=m c^2}

DIFI server

The DIFI server has address 192.168.253.87 on the internal department network.

It's services are remotely accessible, through port forwarding, from 130.251.168.253 by ports:

Ext.port	Int.Port	Service
4080	80	apache
4081	5901	vnc
4082	22	ssh
4083	443	https
4084	1194	openvpn
4085	5901	vnc
4086	3306	mysql
4087	873	rsync
4088	8888	proxy
4089	8080	calibre

Tasks of the DIFI server

1. get analysis data from the on shore server
2. get slow control data from the remote server
3. transfer analysis data to the storage unit
4. transfer slow control data to the storage unit
5. transfer data to DIFI web server

Timing

Every action is done through crontab configuration

*/5 * * * * /home/arion/arion-update-analysis
25 14 * * * /home/arion/arion-update-slowcontrol

to look at the runnning configuration, from arion user:

crontab -l

to edit/update it:

crontab -e

Data stream path

Data acquired from hydrophones Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H_1} to Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H_4} on buoy $BU_{C}$ Carega or $BU_{S}$Sindaco are preamplified from PreAmplifier ${PA_{C}}_{1}$ to ${PA_{C}}_{4}$ and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle {PA_S}_1} to ${PA_{S}}_{4}$ the sampled from $Crio_{S}$ and $Crio_{C}$.

Digital data are sent from $Crio_{S}$ and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Crio_C} to the Ground station throug the wifi bridge Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Wifi_S} and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Wifi_C} from internal Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle IU} and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle EU} and external townet wireless IP67 5Ghz units.

bla bla

Slow report from ARION on shore server

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Analysis data from ARION on shore server

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Services to the public

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Services to researchers

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Data stream splitting

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Data management

When data reach Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle PC_1} they are stored on a buffer fast sata SSD disk Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle SAD}

bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla