[Elphel-support] Shperical camera

[Oleg K Dzhimiev]

 Dear Grzegorz,

I'm sorry - some of my answers were about our regular cameras. They are
correct to some extent to the spherical camera...

1. Are that camera has possibility for external triggering source? We need
> to synchronize it from our signals.
>
What are the signals?
So, triggering the spherical camera - at the moment this can done through
the LAN (the phone connectors can't be reached at the moment) from your PC -
the delay will be ~1ms.
Two options here but in any case some programming is needed:
a) record images through the web to the PC.
- an application needs to be written that will generate the trigger and will
request images from the camera. This might be relatively easy to code.
b) record images to HDDs:
- we need to modify the recording software to be able to record at a
variable frame rate. This can take some time.

3. How transmition of images is realized? I see that camera has internal HDD
> for storage but can we get it from hard disk during collection?
>
During recording you have a web access to the camera's (the spherical camera
consists of 3 camera modules)  Image Server and you can check from time to
time what is being recorded (from the camera modules itself, not from HDDs).

If you'd like to get images from HDDs while recording - the ftp will work -
during normal operation each camera module records a .mov file that consists
of 100 frames.
After all the data is collected the HDDs can be taken out and put into a
HDD-dock to be copied - our Eyesisbox PC has such a dock for 3 2.5" HDDs.

Best regards,
Oleg

On 6 October 2010 11:40, Oleg K Dzhimiev <oleg at elphel.com> wrote:

> Dear Grzegorz,
>
> We answered to the first 2 questions through our ticket system - please
> check your spam folder - there's a chance our replies are there.
> Anyway, I'll answer your questions here also because the info might be
> helpful to other people on the mailing list.
>
>
> 2. Is it possible to program this camera on windows? Or we have to use only
>> linux?
>>
>
> Cameras (all our cams including the Eyesis) have a Web-based UI - so you
> can control it from a browser (firefox).
> If you plan to program it with HTML-Javascript-PHP - then you can still use
> windows - just upload your scripts through ftp.
> In the case of C-language - Linux, to be able to compile programs for the
> camera. Additionally you'll need Linux to be able to update the firmware.
>
> With our regular cameras we sell preinstalled EEE Box PCs (we are planning
> to upgrade, since there are better solutions available now) with everything
> you will need to start the software development process out of the box - at
> the same time you can easily install all the software yourself just by
> following this guide<http://wiki.elphel.com/index.php?title=Elphel_Software_Kit_for_Ubuntu>
> .
>
> With Eyesis we offer a powerful PC with pre-installed software for
> copying/processing the recorded images.
>
>
>  3. How transmition of images is realized? I see that camera has internal
>> HDD for storage but can we get it from hard disk during collection?
>>
>
> You can record images directly on your PC with 1.5 slower speed than on an
> internal HDD. From the HDD the images can be extracted through ftp, for
> instance. It depends on your application.
>
>
>
> 1. Are that camera has possibility for external triggering source? We need
>> to synchronize it from our signals.
>>
>
> Yes, it has.
> A phone cable can be used for that (connected to boards 10369 J15 -
> http://wiki.elphel.com/index.php?title=10369) - the camera needs to be put
> in the trigger mode and provided with a pulse through a proper wire.
>
> More particular info can be find here:
> http://wiki.elphel.com/index.php?title=Trigger
> http://www3.elphel.com/list (search for 'trigger')
>
>
> Best regards,
> Oleg Dzhimiev
> Elphel, Inc.
>
> On 5 October 2010 08:35, Grzegorz Pawlak <Grzegorz.Pawlak at tomtom.com>wrote:
>
>>  Dear Elphel support,
>>
>>
>>
>> I have a few technical questions about your spherical camera and using it.
>>
>> 1. Are that camera has possibility for external triggering source? We need
>> to synchronize it from our signals.
>>
>> 2. Is it possible to program this camera on windows? Or we have to use
>> only linux?
>>
>> 3. How transmition of images is realized? I see that camera has internal
>> HDD for storage but can we get it from hard disk during collection?
>>
>>
>>
>> Best Regards,
>>
>>
>>
>> *Grzegorz Pawlak* | Senior Software Engineer | CPU | +48 42 664 2706
>> office | http://www.tomtom.com
>>
>>
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