Sandaysoft

Support forum for Cumulus weather station software
It is currently Thu Jun 20, 2013 7:42 am
Please click here before posting. Help me to help you!
Useful Links: Cumulus FAQ • Enhancement requests • Wiki (documentation)
Please put your approximate location into your profile
Add your web site to the Cumulus user map
Vantage Pro2 users with firmware 3.00 should upgrade to fw 3.12 and Cumulus 1.9.4

All times are UTC




Post new topic Reply to topic  [ 20 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Re: Using two webcams at once
PostPosted: Wed Nov 16, 2011 8:09 am 
Offline

Joined: Sun Jan 10, 2010 10:43 am
Posts: 57
Location: Germany
Weather Station: WS2350
Operating System: Windows 2003 Server
Quote:
Does anyone know why this could be happening? and is there a way to stop the HUE webcam from taking over?


this is exactly the Problem I faced with Yawcam from time to time in the past.
I used also 2 different webcams and 2 instances of yawcam. In the evening hours (night hours) I stopped Yawcam by a sheduler and restarted both instances in the morning hours and in 50% of all day's I had the same Problem.
This was the reason why I switched back to my former Webcam Program which can internally handle more than X Webcams with one instance and also IP Cams (WLAN Cams can behandled).
I don't want to advertise here, but in the past I cheked many different webcam programs but finally I always stuck and thats the reason I went back to the Webcam software I used since years. VisionGS http://www.visiongs.com/?lang=en. It has nearly all these features you can find with YawCam and some additional goodies.
-jan

_________________
Image http://jankreutzer.de/index.php/wetter-messwerte


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Wed Nov 16, 2011 9:36 am 
Online

Joined: Sat Aug 13, 2011 9:33 am
Posts: 406
Location: Somerset, UK
Weather Station: WH1081
Operating System: Windows XP SP3 / W7
Are you using the free version or the paid for one?

_________________
David
http://www.dmjsystems.co.uk/weather/

Image


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Wed Nov 16, 2011 9:51 am 
Offline

Joined: Sun Jan 10, 2010 10:43 am
Posts: 57
Location: Germany
Weather Station: WS2350
Operating System: Windows 2003 Server
water01 wrote:
Are you using the free version or the paid for one?


some years ago I purchased the paid version but didn't used it for a long time.
Some month ago I tried to test some other webcam Products but was not really satisfied and switched back.
-jan

_________________
Image http://jankreutzer.de/index.php/wetter-messwerte


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Wed Nov 16, 2011 2:05 pm 
Offline
User avatar

Joined: Tue Feb 01, 2011 8:22 am
Posts: 344
Location: Wokingham, Berkshire, UK
Weather Station: WH1081
Operating System: Win 7, XP, Xubuntu, Linux Mint
slashmusic;

Thanks for the info..

Will the free version work with 2 cameras? or does it have restrictions that the full version does not restrict.

i.e. the amount of cameras that you can connect or a text "watermark" over the image.?

I just want to make sure as I want to try and keep my server as clean as possible, with limited
amount of software installed and not have to install something only to find out it does not work
or is crippled and then have to uninstall it.

_________________
Cumulus Real Time Data Grabber
http://bit.ly/WjBh5z

Wokingham Berkshire - weather station
http://www.wokinghamweather.co.uk

MRD Photography
http://www.mrdphotography.co.uk

Image


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Wed Nov 16, 2011 4:39 pm 
Offline

Joined: Sun Jan 10, 2010 10:43 am
Posts: 57
Location: Germany
Weather Station: WS2350
Operating System: Windows 2003 Server
Solorize wrote:
is crippled and then have to uninstall it


yes you are right.....the banner is showing an advertise from time to time (as far as I know)

but please see here: the compar. of both versions: http://www.visiongs.com/comparison.php

the only limit of the Personal edition is that IP CAMs can not be used but normal cams as you have should be run paralell.
-jan

_________________
Image http://jankreutzer.de/index.php/wetter-messwerte


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Thu Nov 17, 2011 8:24 am 
Offline
User avatar

Joined: Tue Feb 01, 2011 8:22 am
Posts: 344
Location: Wokingham, Berkshire, UK
Weather Station: WH1081
Operating System: Win 7, XP, Xubuntu, Linux Mint
Hi

Quick update.

I still had the same problem with only one webcam working until i plugged the new one in and then the 1st webcam froze.
This also happend when running VisionGS =(

So I decided to uninstall the new webcam drivers that I had installed then rebooted and had a look in my BIOS and noticed
that the USBs had some of ther IRQ's the same.

ie. three of them were on 11, one was on 10, another was on 5 etc..

So I tried to change them but it only gave me a couple of options and even then when I changed
one it also changed another one of them to the same number !?! So I guess they must be linked some how?

Anyway, I decided to exit the BIOS and not save the changes, went back into Win XP and unplugged the new webcam
and moved it to another USB port..... Now this time when it was plugged in it did not freeze the 1st webcam =)
But it would not display the new webcam.

So I then rebooted the machine and load up my 1st webcam in Yawcam, then once that was working I started the new webcam
in another instance of Yawcam.

Now I have the 1st webcam displaying and working as it should, with the second webcam just showing a blank black window =(

I then adjusted the format settings settings for the 2nd webcam from 640x480 to 320x240 and volia it started displaying =)
But if I try and increase the resolution it just goes blanks again =( even tho the webcam supports a higher resolution!

The only other thing I can think of is that I am running out of graphics memory and therefore I cannot display at a larger size
along with my other webcam running at the same time. I only have onboard graphics, so I have just ordered a stand a lone
graphics card to see if that will help.. but I am now started to clutch at straws as am running out of options =(

_________________
Cumulus Real Time Data Grabber
http://bit.ly/WjBh5z

Wokingham Berkshire - weather station
http://www.wokinghamweather.co.uk

MRD Photography
http://www.mrdphotography.co.uk

Image


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Thu Nov 17, 2011 8:59 am 
Offline

Joined: Sun Jan 10, 2010 10:43 am
Posts: 57
Location: Germany
Weather Station: WS2350
Operating System: Windows 2003 Server
I have also only a small computer (has the size of a book and only 15 W power consumption) with a build in Graphic card running on Windows 2003 Server with a lot of applications started.
I am using VisionGS and 2 Webcams. One is an USB webcam one is and WLAN Webcam. I don't think this is related to the Graphic Memory.
Smaller Buildin Graphic Cards should use Shared Memory.
I can face an increased CPU consumption once both Webcam pictures (Live view) is visible on the desktop.
Some month ago, I also used 2 USB Webcams at the same time and had no problems.

but anyway, good luck when using an external graphic Card
-jan

_________________
Image http://jankreutzer.de/index.php/wetter-messwerte


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Thu Nov 17, 2011 9:09 am 
Offline
User avatar

Joined: Thu Jan 07, 2010 9:44 pm
Posts: 2596
Location: Wilmslow, Cheshire, UK
Weather Station: Davis VP2
Operating System: XP SP3, Win 7
I have no experience with multiple webcams, but... It may be you are running out of bandwidth on the USB bus. Often separate physical ports are internally linked to the same USB hub and so share bandwidth - but not always. So try a couple of things:

1, move one webcam to a different USB port if possible (if you are savvy enough you can see in Device Manager how the USB devices are connected, try the 'Devices by connection' view).

2, try reducing the streaming frame rate from the web cams - this is not the same as your capture rate - this together with the frame size has a big impact on bandwidth utilization. (as a bonus the image quality often increases with reduced frame rate as many devices (usually USB1.1 device) apply increasing compression to the image stream to fit into available bandwidth.

_________________
Mark
Wilmslow Astro Weather


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Thu Nov 17, 2011 1:53 pm 
Offline
User avatar

Joined: Tue Feb 01, 2011 8:22 am
Posts: 344
Location: Wokingham, Berkshire, UK
Weather Station: WH1081
Operating System: Win 7, XP, Xubuntu, Linux Mint
Thanks to you both for your replies,

I have had a look at the devices by connection:

Image

I had tried the cameras in different USB ports and with the ones they are in now
is the only way I can get them to display at the same time.

FYI. I have the following connected to USB ports and have juggled them around
to see if it makes any differnece, and also tried with just the two cameras connected ony.

External HDD

UPS

FineOffset base unit

MS Lifecam

Hue HD webcam



I have also tried dropping the frame rate;

MS Lifecam = 7.5 fps

Hue HD cam = 30 fps
(I cannot get it to drop down lower, even when i select it, it defaults back to 30 fps)

I may be able to get it down further if I loaded the HUE webcam drivers back on, BUT these drivers interfere somehow with
my MS Lifecam and stop it from working.


My next problem is that the Huecam "over exposes" the image big time and as I dont have the drivers loaded I cannot
control the Exposure. The image is fine when it's night time, it seems to expose correctly, but as soon as it starts turning
daylight the images whites-out, see below. The only thing I can think of is that when I was at home and set it up when its was dark
the camera up and it must have set its exposure to display as much of the scene as it could (say +10 exposure), but
when the daylight starts to come up it doesnt change the exposure setting and therefore over exposes the scene buy the
+10 it was using when it was started in the night, therefore whiting-out the image.

One thing I will need to try is seeing if I can disconnect and then reconect it in the daytime so it sets its exposure correctly
for the daylight and displays it correctly, then when it starts to get dark the image gets darker untill at night its wont display
anythhing. Obviously I will need to wait until the weekend as its dark when I leave the house in the morning and dark when
I get home at night to try this theory out.

The other thing I was thinking was to put a polarising filter over the lens, but if the problem IS the exposure then this would
not stop down the light enough during the day to help.

Image

_________________
Cumulus Real Time Data Grabber
http://bit.ly/WjBh5z

Wokingham Berkshire - weather station
http://www.wokinghamweather.co.uk

MRD Photography
http://www.mrdphotography.co.uk

Image


Top
 Profile  
 
 Post subject: Re: Using two webcams at once
PostPosted: Fri Nov 18, 2011 1:56 pm 
Offline
User avatar

Joined: Tue Feb 01, 2011 8:22 am
Posts: 344
Location: Wokingham, Berkshire, UK
Weather Station: WH1081
Operating System: Win 7, XP, Xubuntu, Linux Mint
I reinstalled the Hue DH webcam drivers again lastnight and after disabling the system tray program from loading
and stopping and starting both instances of Yawcam multiple times I managed to get both cameras displaying theirs feeds.
So I tryed changing the resolution on the HUE HD and managed to get it to display 640x480 (with the drivers loaded I could
select many more resolutions). Happy that I finally managed to get it working I decided to reboot my machine to make sure
it all was set up ok. But when it started again only my MS Life cam was displaying... So I decided to uninstall the drivers
again and spent another while of trial and error until I had the HUE HD back to 320X240 and the MS Lifecam both displaying.

So it looks like I can only get the higher resolution when the drivers are loaded, but when they are loaded it messes up the
other webcam..

Anyway now I have the Hue cam feed working, I positioned it to look out of the window, and after looking at it again online
today it has whited-out again. on the HUE HD cam website it does state that the webcam has Auto Exposure Control see below;

http://www.rm.com/shops/thebasement/Product.aspx?cref=PD2213472

Features:

Snapshot button
360° rotation
10x zoom
Background effects
Lens effects

Digital noise reduction
Auto exposure control
Auto white balance
Brightness control
Contrast control


But it does not seem to be doing anything to adjust to the light conditions.

My only thought is that without the drivers loaded it does not use this feature.

So my next plan is to install it on my laptop along with the drivers and set that up to look
out of the window and see if it exposes correctly. Luckily it's the weekend tomorrow so I can
test it while its daylight.

If it does work then I may have to reside to having it permenently set up on my laptop and have
it FTP upload from there, as well as having the MS lifecam on my server.

Obvioulsy with all the electricty prices that have gone up recently I would rather have only one
machine running 24/7 than both.

_________________
Cumulus Real Time Data Grabber
http://bit.ly/WjBh5z

Wokingham Berkshire - weather station
http://www.wokinghamweather.co.uk

MRD Photography
http://www.mrdphotography.co.uk

Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 20 posts ]  Go to page 1, 2  Next

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Protected by Anti-Spam ACP Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group