Difference between revisions of "NVGate Recorder"

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==Tutorial==
==Tutorial==
===Using Go to result===
===Using Go to result===
Just click on "record signal using go to resut windows. The track are automatically record.
Just click on "record signal using go to resut windows. The track will be automatically recorded.
[[File:Recorder_goto.png|framed|none]]
[[File:Recorder_goto.png|framed|none]]


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===Using Connect Inputs===
===Using Connect Inputs===
For connecting, DC channels, Can Bus, Xpods,(...) we can advice to use the connect input and do a drag and drop into the recorder.
For connecting, DC channels, Can Bus, Xpods,(...) we advise users to enable the input and do a drag and drop into the recorder.
[[File:Connects inputs.png|framed|none]]
[[File:Connects inputs.png|framed|none]]


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[[Image:Recorder_group.png|framed|right]]
[[Image:Recorder_group.png|framed|right]]
[[File:Recorder_ASB.png|right]]
[[File:Recorder_ASB.png|right]]
* [[Image:Reports_Tools_Ribbons_343.png]] Available: Display the maximum possible recording duration depending the current recorder setup. Read only. The max duration is computed from the free space of the selected hard disk, the number of tracks (and their corresponding sampling frequency) and the number of recordsNote in time to stop, the max duration may also be limited by the local available memory (PC/Analyzer) for the description blocks.
* [[Image:Reports_Tools_Ribbons_343.png]] Available: Display the maximum possible recording duration depending on the current recorder setup. The max duration is computed from the free space of the selected hard disk, the number of tracks (and their corresponding sampling frequency) and the number of records. Note in time to stop, the max duration may also be limited by the local available memory (PC/Analyzer) for the description blocks.
*Used Space: gives a visual overview of the disk occupation.<br>
*Used Space: gives a visual overview of the disk occupation.<br>


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* '''Source''': signal to be recorded. It may come from the input Front-end or from the Player in post analysis mode (see "Post analysis" topic chapter 6).
* '''Source''': signal to be recorded. It may come from the input Front-end or from the Player in post analysis mode (see "Post analysis" topic chapter 6).
* '''Signal bandwidth''': frequency bandwidth of the recorded track. This value is equal to the sampling frequency of the recorded signal divided by 2.56 (this factor was chosen in order to avoid any aliasing problem during frequency analysis). For the DC input this setting is forced to the input setting DC input sampling value. For the External Synchro input this setting is forced to the input setting input sampling value. For the input, the user can choose between the 2 frequencies bandwidths defined in the next settings.
* '''Signal bandwidth''': frequency bandwidth of the recorded track. This value is equal to the sampling frequency of the recorded signal divided by 2.56 (this factor was chosen in order to avoid any aliasing problems during frequency analysis). For the DC input this setting is forced to the input setting DC input sampling value. For the External Synchro input this setting is forced to the input setting input sampling value. For the input, the user can choose between the 2 frequencies bandwidths defined in the next settings.
=====Mode=====
=====Mode=====
This sub-module is used to define the recording set-up (record on PC hard disk or on the analyzer hard disk, the number of records...).
This sub-module is used to define the recording set-up (record on PC hard disk or on the analyzer hard disk, the number of records...).
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[[Image:Recorder_04.png|framed|none]]
[[Image:Recorder_04.png|framed|none]]


|Acquisition begins on the start event and stops when the specified duration has been recorded. The user with the Stop command can stop the acquisition at any moment. If the Number of records is greater than 1, a new record is started with a new start event. When all the specified records have been recorded the plug-in goes in the Stopped state (the Stop command also forces the plug-in the Stopped state).<br><br><br>
|Acquisition begins on the start event and stops when the specified duration has been recorded. A user with the Stop command can stop the acquisition at any moment. If the Number of records is greater than 1, a new record is started with a new start event. When all the specified records have been recorded the plug-in goes in the Stopped state (the Stop command also forces the plug-in the Stopped state).<br><br><br>


|-
|-
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=====Trigger=====
=====Trigger=====
This sub-module is used to you define the start and stop conditions of the signal to be recorded.
This sub-module is used to define the start and stop conditions of the signal to be recorded.


* '''Recorder: '''defines the status of the recorder  ("armed" or "unarmed"). The user can choose to arm the record in order to be ready for recording. When a "Run" is made with a recorder in the status "unarmed", before running the record will be set to "armed". In the status "armed", any modifications of Front End or Recorder settings put automatically the recorder in the status "unarmed". The action of "armed" corresponds to the creation of a .lxf file (which corresponds to save the record set up).
* '''Recorder: '''defines the status of the recorder  ("armed" or "unarmed"). The user can choose to arm the record in order to be ready for recording. When a "Run" is made with a recorder in the status "unarmed", before running the record will be set to "armed". In the status "armed", any modifications of Front End or Recorder settings put automatically the recorder in the status "unarmed". The action of "armed" corresponds to the creation of a .lxf file (which corresponds to save the record set up).
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* '''Bandwidth'''[[Image:Reports_Tools_Ribbons_338.png]]: this is the signal frequency bandwidth in the frequency domain. The frequency bandwidth is equal to the sampling frequency divided by 2.56.
* '''Bandwidth'''[[Image:Reports_Tools_Ribbons_338.png]]: this is the signal frequency bandwidth in the frequency domain. The frequency bandwidth is equal to the sampling frequency divided by 2.56.


The recorder support up to 4 different bandwidths:
The recorder supports up to 4 different bandwidths:


{|border="2" cellspacing="0" cellpadding="4" width="82%"
{|border="2" cellspacing="0" cellpadding="4" width="82%"
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Autobandwith manages the analysis and recording bandwidths automatically.
Autobandwith manages the analysis and recording bandwidths automatically.


The n''Inputs selection'' window '''allows the use of 2 different sampling rates for the dynamic inputs'''. It gathers inputs with the same physical quantity into groups, maintaining the same sampling into each group.
The ''Inputs selection'' window '''allows the use of 2 different sampling rates for the dynamic inputs'''. It gathers inputs with the same physical quantity into groups, maintaining the same sampling into each group.


When inputs are associated with '''the analysis plug-in, it adjusts its analysis bandwidth to match the inputs ones'''. Mixing input bandwidths in one analysis plug-in lead to set its bandwidth to the lowest one.
When inputs are associated with '''the analysis plug-in, it adjusts its analysis bandwidth to match the inputs ones'''. Mixing input bandwidths in one analysis plug-in will set its bandwidth to the lowest one.


''Autobandwidth'' is set by default in the concerned plug-ins.
''Autobandwidth'' is set by default in the concerned plug-ins.
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[[Image:V11_release_23.png|framed|none]]
[[Image:V11_release_23.png|framed|none]]


Deactivating the recorder<nowiki>'</nowiki>s ''Autobandwidth'' allows managing the dynamic inputs sampling from the recorder. Out of the case of recording signal at lower frequency than the analysis, it is recommended to keep the recorder ''Autobandwidth'' active.
Deactivating the recorder<nowiki>'</nowiki>s ''Autobandwidth'' allows managing the dynamic inputs sampling from the recorder. It is recommended to keep the recorder ''Autobandwidth'' active unless the recording signal must be a lower frequency than the analysis.  


=====Arming=====
=====Arming=====
Arming of the recorder creates a backup of your record settings. Arming the recorder secure the record allowing an easy recover of the data whatever is the record ending cause.
Arming of the recorder creates a backup of your record settings. Arming the recorder secures the record allowing an easy recovery of the data regardless of the cause of the end of the recording.


The recorder is armed automatically when pressing the RUN This operation may take a couple of seconds.. It is possible to pre-arm the recorder allowing an immediate start of the recorder. This is available from the ''Measurement'' tab of the ''Vision'' interface:
The recorder is armed automatically when pressing the RUN button. This operation may take a couple of seconds. It is possible to pre-arm the recorder allowing an immediate start of the recorder. This is available from the ''Measurement'' tab of the ''Vision'' interface:


[[Image:Recorder_01.png|framed|none]]
[[Image:Recorder_01.png|framed|none]]
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==Recovering records==
==Recovering records==
The recorded data benefit of specific safety tools that allow recovering the data in case of failure during the record.
The recorded data benefits from specific safety tools that allow recovering the data in case of failure during the record.


There are 2 type of recovery:
There are 2 types of recovery:


* Manual recovery: in the case of the initial project have been cancelled from your PC, or have been recorded with another PC, or if the project has been renamed. The recovering tools are available into the hard drive manager called from the ''Home ''tab/''Disk'' group (''Manage'')
* Manual recovery: if the initial project has been cancelled from your PC, or has been recorded with another PC, or if the project has been renamed. The recovering tools are available in the hard drive manager called from the ''Home ''tab/''Disk'' group (''Manage'').


* Automatic recover: in the case of an unexpected stop of the analyzer; i.e; during a record, at the end of the record or before saving the measurement.
* Automatic recovery: in the case of an unexpected stop of the analyzer; i.e; during a recording, at the end of the recording or before saving the measurement.
During the next launch of NVGate, the Disc is scanned, and then all unsaved files will be recovered if the initial project is found in the local tree diagram. The recovered measurement will be renamed with the date of record.
During the next launch of NVGate, the Disc is scanned, and then all unsaved files will be recovered if the initial project is found in the local tree diagram. The recovered measurement will be renamed with the date of record.


This recovery type can handle multi records; the recover will be based on the shorter record.
This recovery type can handle multi records; the recover will be based on the shorter record.


If an unexpected stop occurred (power out …), signals will be recovered and only few seconds will be lost, depending on the configuration of your record (sampling frequency, slow inputs).
If an unexpected stop occurred (power outage …), signals will be recovered and only few seconds will be lost, depending on the configuration of your record (sampling frequency, slow inputs).


For example at 1 ch @ 51.2 kS/s, a maximum of 2.5 s could be lost.
For example, at 1 ch @ 51.2 kS/s, a maximum of 2.5 s could be lost.


If the mode <nowiki>’</nowiki>Time to stop<nowiki>’</nowiki> in the recorder is selected, unsaved files will not be recovered.
If the mode <nowiki>’</nowiki>Time to stop<nowiki>’</nowiki> in the recorder is selected, unsaved files will not be recovered.
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