Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - sanjay

Pages: 1 [2] 3
16
Chronos User Discussion / Re: Introducing Chronos 2.1 HD!
« on: November 06, 2020, 03:48:14 PM »
There was a question in my head, can I configure the usb connector to connect the wifi adapter through it? and control the camera
Question to the developers or to someone who is engaged in programming.
Nikon you don't need to answer a question if you don't know or if you have a theory!

Hi Sergey, regarding this I would highly recommend using an ethernet to wifi bridge that does not require the camera to set it up. If you'd like to look into the usb control of a wifi adapter, you'd have to look for something that would be compatible the the Chronos' version of the Linux kernel, as displayed below:

root@chronos:~# uname -a
Linux chronos 3.2.0 #67 Mon Nov 25 14:27:52 PST 2019 armv7l GNU/Linux




After a recent monthly mailing, I read that an update for the camera interface will be released soon. wanted to get more information for users, because maybe we have some suggestions or wishes that you may (if it is possible) can make in the update

Regarding the newsletter, yes, we have a software update on the way in the coming weeks that will address some bugs, add improvements to the 2.1's image quality, and add a new external storage file browser feature, so that you can see what has been saved to storage (and delete it if necessary). Development is almost done and we're about to start our test/QA procedure for this release, but here's a preview of the file browser screen:




Suggestions on what can be improved in software is always welcome. I think the best place for that would be in the Software Dev board under whichever software release thread that your feedback applies to (probably 0.5.0 at this point).

17
Chronos User Discussion / Re: Review of Chronos 2.1
« on: November 06, 2020, 03:17:25 PM »
Hi Sergey,

Would you be able to send us a message at [email protected]?

That way we could start a support email thread and help narrow down the cause of your saving issues, thanks!

18
Software Dev / Re: Chronos V0.4.0 Beta - Debian and Networking
« on: October 05, 2020, 01:49:33 PM »
Hi, I just formatted the micro SD card that came with our 2.1 camera before making a backup of the calibration settings (because, apparently, I'm an idiot). Are these settings lost now? Are they stored on the micro SD card or on the camera itself? If the latter, can I retrieve them by flashing the firmware the camera came with (no idea which version number that is though) back onto the micro SD card, inserting it and exporting the calibration to a USB flash drive before flashing the newer version? Thanks in advance!

Hi davto, the settings are stored on the microSD card. You'd be able to reflash the sd card with 0.5.1, but the 2.1s have factory calibration files that would need to be reloaded. Please send an email to [email protected] with your camera's serial number, and I'll send you the appropriate calibration files.

19
Chronos User Discussion / Re: Nikon Battery
« on: September 25, 2020, 02:45:58 PM »
Hi Chrissie,

If the outside dimensions are exactly the same as the battery that shipped with the camera, it might be the width of the gap between the contacts on the battery itself.. How do the contacts on the new battery compare to the included one?

20
Hi Kristian,

Are you able to get the startPlayback to work if you use a curl command? On my camera here in the office, the below command will successfully put the video pipeline into playback mode and
advance through frames as expected:

curl --header "Content-Type: application/json" --request POST --data '{"framerate":60, "position":0}' http://192.168.1.118/control/startPlayback


I took some time to try out the axios client in some test scripts as well and had trouble with post requests whenever they needed extra parameters, so I think something is missing there.

21
Software Dev / Re: Screen Brightness Control
« on: September 11, 2020, 10:53:25 AM »
Thanks for the feedback! Brightness control for the LCD display is something in the works for a future update, so please stay tuned. As far as more intelligent features like an exposure indicator, we'd have to do a bit of digging before coming up with a solution, but it is definitely a useful idea beyond the zebra stripes.

At this point in time, and with the resources we have in the software engineering department, I'm trying to adhere to a quarterly update schedule for the Chronos 1.4/2.1.

22
It's tough to say at this point, since we'll need to investigate to see if it pertains more to software configuration of the sensor, or the sensor's limitations.. I'll post here if there's an update.

One thing that might help for now is to select the highest analog gain setting that does produce output, and then combine that with the digital gain setting that's also found in Record Settings.

23
Software Dev / Re: Chronos V0.5.0 Full Release
« on: August 19, 2020, 12:16:05 PM »
Must say, I love what you did with the interface. Very nice! :D

Thanks DDR! Hope all is well with you.

Saw the tweet about the minor update but nothing pertaining to what the update was about.
Ist an update mainly for the 2.1 of the New batch which have some issue at higher gain-Values.I allready updated, and while i never did a direct comparison, the new update improoved Image Quality a bit from What i can tell and removed a bunch of issues with no image at all beeing displayed at some Resolutions/ Framerates at Very high gain.I dont think the Update does anything to the 1.4 or the older batch of 2.1īs but is mainly for the New 2.1īs.

Yes, the 0.5.1 update was minor and only affects Chronos 2.1 cameras. We noticed some variance when our production team started building Chronos 2.1s with a new batch of image sensors, and so an analog voltage was updated via software to mitigate the issue while slightly improving the old batch of sensors already in the field. Thanks for providing some info in lieu of my late response, Nikon1.

24
The viewfinder going black is known behaviour when the image sensor is configured with specific resolution and analog gain combos. Thanks for bringing this up, as I don't think we currently document this anywhere, so I'll add it to the new software manual that is in the works right now..

Specific common resolutions where this will occur:
1024 x 768 at or above 18dB
1024 x 576 at or above 18dB
800 x N at or above 12dB
640 x N at or above 12dB

Thomas' suggestion may also apply if the issue persists while the gain is less than 12dB for the above resolutions.

25
Software Dev / Re: Chronos V0.5.0 Full Release
« on: July 23, 2020, 10:40:54 AM »
Thank you for the update! The development is coming along very nicely.
I am not sure if I was not able to find it, but is there a place where 'bugs' can be reported?
For example, saving the file using python/json confuses the camera, where it needs to be restarted. Frame number starts jumping around wildly.

post = requests.post(c_ip+'control/startFilesave', \
   json = {'format': 'h264',\
               'device': 'nfs',\
               'filename': 'test',\
               'start': 0,\
               'length':0})




Hmm, thanks for pointing this out. I'll investigate further and see if I can replicate it. Bugs can be posted here: https://github.com/krontech/pychronos/issues


Could you keep the link to the builds in the original posts when posting new updates? ;) It makes it easier to keep track of things for those of us who are still using Balena Etcher to update.


http://debian.krontech.ca/builds/

Ah yeah, good point. Will keep this in mind for future updates.


Regarding the manual, look out for one in the coming (3ish) weeks. We're taking the time to rewrite the entire thing to make it easier to understand, but for urgent needs, I'd say about 95% of the V0.4 manual is still valid for V0.5 operation.

Hello Sanjay, I wonder if there's any update on the manual for V0.5.
It is still being written, but please let me know via PM or through our official support email if you need help with anything specific in the mean time.


26
Software Dev / Re: Chronos V0.5.0 Full Release
« on: July 06, 2020, 05:01:10 PM »
Hi sanjay,

loving the update so far, zooming is very useful and an excellent addition.  Are there any plans to get the UI to be able to switch to top and down for 720p record mode (I am on the 1.4)  The screen real estate is eaten by the UI on the left or right but it would be extremely cool if we got to see the image preview in the full width of the screen which will be considerably larger.  The UI thread from DDR (which I am including the image) had this exact layout in testing. Just wondering if it's coming or scrapped?   
Great work on 0.5 team!

There are no plans to implement the horizontal top/bottom bars in the UI. We're sticking to the sidebar to keep things unified and predictable across updates.

Regarding the manual, look out for one in the coming (3ish) weeks. We're taking the time to rewrite the entire thing to make it easier to understand, but for urgent needs, I'd say about 95% of the V0.4 manual is still valid for V0.5 operation.

Hi Sanjay,

I'm using Chronos with Matlab over network connection and it works good so far. I was waiting for the official software update to get rid of some bugs that i mentioned before in anther posts. Parameter disableRingBuffer, which will stop the recording when the buffer is full, is still in V0.5.0 not responding even if I change the state to true.

Can you suggest me a switch or router that is not going to cause an issue with the camera while starting up?

Hmm, I'll give the disableRingBuffer parameter a try on my side and see what happens. Any gigabit switch or router should be fine.

If you're looking for an unmanaged switch, something like this would work: https://www.amazon.ca/NETGEAR-8-Port-Gigabit-Ethernet-Unmanaged/dp/B07PFYM5MZ
If you're looking for a router, something like this would work: https://www.amazon.ca/Netgear-Nighthawk-Routeur-intelligent-R8000/dp/B07R169MXR

Other folks could probably also chime in on what router/switch works for them.

27
Software Dev / Re: Chronos V0.5.0 Full Release
« on: June 25, 2020, 11:07:22 AM »
Thanks for the feedback! I'm glad that everyone is enjoying the update so far.

For the folks trying out audio + continuous record mode, I have a few things to add that may be helpful:

- You'd need an amplified source to connect to the camera's line-in audio jack for the best quality

- We might have a small hardware bug with the way mic and line-in are switched, so at low line-in volumes, you do hear a bit of feedback from the mic at the moment. I'd need to investigate a bit more.

- The audio codec chip inside both the 1.4 and 2.1 is a Texas Instruments TLV320AIC3101, which specifies that the line-in input shouldn't exceed 2.2 Vpp, single ended. From tests I've done here in the office, connecting the line-out of a PC or smartphone and having the volume at 25-40% of maximum seemed to work well. YMMV.

28
Software Dev / Re: Chronos V0.5.0 Full Release
« on: June 19, 2020, 03:21:23 PM »
Huge thanks for the 60fps continous recording with audio!Will this come Pre-Installed on the new 2.1 Chonos Cameras which are preordered?

Yes, this is what is now being shipped for both the 1.4 and 2.1s. We also have a new manual on the way to support it.


Any time frame on enabling the audio trigger for things like gun shots etc?

We don't have a formal schedule for this at the moment. If you're looking to do some audio triggering in the short term, I'm wondering if you could set something up to use the new Toggle trigger (start-stop) mode + some sort of external device to provide a trigger signal into the camera upon hearing whatever kind of sound signature you'd like to listen for..


Or auto triggers... based on changes in pixels on screen?

Great question, thanks for bringing it up. This is something we're looking into developing examples/application notes for. It's not something that is planned to be done within the camera itself, but with the live RTSP stream being fed into a computer vision application running on a PC. Here's where you'll be able to find those examples when available: https://github.com/krontech/chronos-examples

29
Software Dev / Chronos V0.5.0 Full Release
« on: June 17, 2020, 05:16:58 PM »
We're happy to announce a new release of software for both the Chronos 1.4 and 2.1 cameras. This version builds on what was offered in V0.4.0.

I've attached the PDF of official release notes and upgrade instructions, but I'll reiterate them in this post as well. We'd be happy to hear about your experiences with this new version if you have a chance to update!





New Features and Improvements
● New Graphical User Interface with Dark and Light Modes
● Ability to set preferred exposure units on the main screen
● Double-tap video display area to zoom
● Ability to record live footage to H.264 mp4 @ 60 FPS in parallel with high-speed
recordings, including audio from the built-in microphone or line-in jack
● Automatic input detection and switching between the microphone and line-in jack
when recording audio in Live Record Mode
● Toggle Trigger Mode to allow BNC trigger to both START and STOP a recording
● Ability to configure most camera settings via the web page
● Ability to configure Triggers and I/O configuration via the web page
● Power Manager firmware update allowing for a longer button press (up to 3 sec.) to
boot the camera
● Power Manager firmware update to perform graceful shutdown when the battery is
critically low


Known Issues
● If the camera is being controlled via the web page, no messages will be shown on the
back-of-camera display if the video output mode is changed between
LIVE/RECORDING and PLAYBACK through the web interface.
● If the camera is powered on while connected to 10/100 (non-gigabit) network
equipment, the back-of-camera display will fail to start.
● When using Live Record Mode to simultaneously record 60 FPS MP4 footage to an
external storage device, the video display may momentarily blank or freeze while the
stream is being written to the storage device. This will not affect the high-speed
recording.

Updating Your Camera
There are two methods to update to Version 0.5.0. Please make sure to backup your work and calibration data prior to this.
1. [0.4.0 and later] Go to Util -> Storage -> Apply Software Update.
2. [0.3.2p2 and before] Re-flash your OS card by grabbing the image at: http://debian.krontech.ca/builds/chronos-voyager-20200617.img.xz Please see the attached PDF for more details on this.



30
Chronos User Discussion / Re: 1.4 Boot problem
« on: June 02, 2020, 03:33:41 PM »
Alright, some good news for those having the 'random' shutdown issue:

After digging through some code changes, I was able to reproduce this and realized that changes in how some status flags are set between the Power Manager and the CPU had changed between 0.3.1 and 0.3.2/0.4.0+.

If you hold the power button down for half a second or more, as you would to turn OFF the camera, the power manager will interpret this as a request to turn off after having entered the power ON state. Therefore, the camera boots, power management daemon starts before the rest of the UI, sees that a shutdown was requested, and then proceeds to turn the camera off.


The solution is to briefly press the power button to turn the camera on. Do not hold it down to start the camera, as anything > 500 mS will be interpreted as a command to turn off.


Please let me know if this mitigates the issues that everyone here has experienced. If so, I will add a delay sequence to the power manager so it correctly handles this button press.


Jeff, yes, the downgrade script is only to go from 0.3.2 to 0.3.1.

Pages: 1 [2] 3