andalusian
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Posts posted by andalusian
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Hi,
I'm using the Labview Webcam Library 1.4.1 ( www.cs.unc.edu/~parente/labview/index.shtml ); along with two logitech webcam 5000 pro webcams. I can get one webcam to work however the other one doesn't get detected in Labview. My hypothesis is that since both of the webcams use the same driver, the issue might be occuring, and perhaps if I had two dis-similar webcams with different libraries, I might be able to change which driver is being utilized. Am I right or is there a quick fix to the problem ? In theory there ought to be a software based fix, considering the logitech capture software can switch between the two webcams.
BTW: I'm not interested in having both of them work simulatanously ( although it would be nice ), just plain stopping one webcam, and enabling the other one is what I would like to have, and this at the moment doesn't seem to work.
Anyone have a solution ?
Best Regards,
Andalusian
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Thanks. I'm going to try that today, and reply back on how it goes.
BTW Neville: Labview 8.0
It works now ( atleast on the server ) - WOOHOO !
Thank You Guys...Andalusian
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Probably a port conflict, I'd say. Create a simple html file (called for example "hi.htm") in the web server root directory, let's say something as simple as:
<HTML>
<BODY>
Hi!
</BODY>
</HTML>
Open the browser and go to localhost with the selected port, i.e.: "127.0.0.1:3333/hi.htm" (because, as you have seen, opening directly from windows leads to an error in the remote panel, 'cause you're not entering through the server). You should see the "hi!" message. If not, try using another port. First, check the web server is running, disable proxys, etc.
Saludos,
Aitor
Thanks. I'm going to try that today, and reply back on how it goes.
BTW Neville: Labview 8.0
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Did you first publish the VI's using the web publishing tool? This creates the html document on the Server which can then be viewed/controlled by a client.
Use Tools>>Web Publishing Tool to first create the html document of your VI.
also, as a troubleshooting tool, try to access the front panel of the VI from the local (server) machine itself via a web browser. If this works, then its probably some configuration settings on your intranet, and your IT person might be able to help.
Neville.
Yes thats how I've been doing it. Unfortunately, it doesn't work. All the error messages from post 1, were under those circumstances (post publishing+attempting to view VI from server machine)
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Hi,
I have designed a VI for a LAB. Now I need to enable it to be accessible on the network, so as to control it remotely. Here comes the problem, I have enabled the server, selected my VI under embedded viewing mode, when I try to preview it in the browser I get "This page cannot be displayed". If I save it and then try using the network URL, still the same error. Then If I even try to access it manually from the directory, I get an error of a different nature: Invalid Server IP address.
That is very strange, as I checked the computer IP address (ipconfig) and it is the same as the one in the options ( labview automatically detects it ). As for other options such as TCP/Ip I checked the enabled button and entered the port 3333 ( as a random number ), on machine access I have a *, on exported VI's I have a *, in configuration I have enable web server checked, with default http port 80, under visible Vi's i have a *, and under browser access I too have a *.
I also tried unplugging the computer from the Uni network and plugging it into a linksys router, but no luck.
I don't understand why I cant' resolve the error and move any further ? Help would be most certainly appreciated.
Andalusian
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how to change the string control to HEX representation mode
Perhaps its my lack-of-labview background kicking in, any one have a clue, how to accomplish that i.e String Control to HEX representation ?
Perhaps its my lack-of-labview background kicking in, any one have a clue, how to accomplish that i.e String Control to HEX representation ?Ok, NVM, got it to work. Thanks
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Hi,
I have an external device that works fine with hyperterminal under the following settings: 57600 bps, 8 data bits, parity none, stop bits, 1 and flow control - hardware.
All instructions to the device are entered as:
<<Escape>><<Code>><<space>><<value>><<enter key>>
Example
(escapeButton)AA 2(returnKey)
Now I found a program in Labview, for serial read and write called "basic serial write and read.vi"
I assumed that for flow control I use DTR/DSR ( correct me if I'm wrong ), but i couldn't see an option called "hadware".
In the string to write box, I'm not sure, how to enter the above sequence ( without the brakets ). Especially the escape button. I would well appreciate if anyone knows how I can enter the above sequence. It will help me a lot
Regards,
Andalusian
Using 2 Similar Webcams - Labview
in Machine Vision and Imaging
Posted
NVM, It works with the newer drivers from NI.
Andalusian