Clotaire Michel: /* Connection to the server */

2010-08-13T10:15:43Z

Connection to the server

Clotaire Michel: New page: Geopsy allows to import continuous data from a seed stream broadcasted by a server and use them for any signal processing in near real time. ==Connection to the server== When [[Geopsy: I...

2010-07-26T15:57:54Z

New page: Geopsy allows to import continuous data from a seed stream broadcasted by a server and use them for any signal processing in near real time. ==Connection to the server== When [[Geopsy: I...

New page

Geopsy allows to import continuous data from a seed stream broadcasted by a server and use them for any signal processing in near real time.

==Connection to the server==

When [[Geopsy: Import signal files|importing a signal file]], choose ''Seed stream''. The Seed link signal loader then starts. One should provide the name of the ''Server'' and the ''Port''. The default port for Seed streams is 18000. Then click ''Connect''.

At this point the list of the available stations for which streams are available appears in the window. Each station can be expanded into all its channels (streams). For each channels, the available informations filled by the server are:
* ''Location'' code of the station
* ''Seed name'' of the channel
* ''Type''
*'' Begin Time'' and ''End Time''
* ''Begin recno'' and ''End recno''
* ''Gap check''
* ''Gap threshold''

Example: The French Accelerometric Network ([http://www-rap.obs.ujf-grenoble.fr]) broadcast its stations using the seedlink protocol. You can look at the data in real time entering the IP address of the server 152.77.247.2 and the port 18000. Clicking ''Connect'' shows all the available stations.

== Selection of the streams ==

The wanted channels should then be selected either by clicking on them or using the ''Select'' command that allows to enter part of the desired station name and then click ''Select''.

== Start listening to the streams ==

When the desired channels are selected, click on the ''Start'' button to start listening to these streams. Ensures the log and the green line ([[#Errors and fixes|See last paragraph]]) have the awaited behaviour. An icon is displayed on the left of the seed name of each listened channel. It is possible to stop each listened channel by selecting it and clicking ''Stop''.

The button ''Options'' allows to modify 2 settings:
* ''Start listening'' gives the starting date and time of the signals that will be imported in Geopsy. It can be ''From Now'' or ''From'' a specified date and time.
* ''Buffer'' allows to control the buffer size. MORE INFO NEEDED

== Viewing and processing the streams ==
The Tool ''View'' is then the main door to Geopsy functionalities. It opens a [[Geopsy: Graphic|Graphic Signal Viewer]] with the streams that started (icon on the left of the channel). The signals can then be [[Geopsy: Signal drag&drop|dragged and dropped]] on any [[Geopsy: Tools|Geopsy Tool]].

== Errors and fixes ==

At any time, a log is displayed under the streams list as well as a green line indicating the amplitude (?) as a function of time of the downloaded streams from 0 to 1. 0 means no data are downloaded, 1 all the requested data are downloaded.

@@ Line 14: / Line 14: @@
 * ''Gap threshold''
-Example: The French Accelerometric Network ([http://www-rap.obs.ujf-grenoble.fr]) broadcast its stations using the seedlink protocol. You can look at the data in real time entering the IP address of the server 152.77.247.2 and the port 18000. Clicking ''Connect'' shows all the available stations.
+Example: The Network of GFZ Potsdam ([http://geofon.gfz-potsdam.de]) broadcast its stations using the seedlink protocol. You can look at the data in real time entering name of the server geofon.gfz-potsdam.de and the port 18000. Clicking ''Connect'' shows all the available stations.
 == Selection of the streams ==

Geopsy: Seed stream - Revision history

Clotaire Michel: /* Connection to the server */

Clotaire Michel: New page: Geopsy allows to import continuous data from a seed stream broadcasted by a server and use them for any signal processing in near real time. ==Connection to the server== When [[Geopsy: I...