How do I make a program to loop a video feed in LabVIEW 8.0?

[PSUstudent]

Hello everyone I am needing a LOT of guidance here. I am a senior at Pittsburg State University in Pittsburg, KS. I have a senior design project that I am basing around LabVIEW. My school owns LabVIEW v8.0 and I am attempting to figure it out. Here's my dilemma: My project is called an onboard vehicle camera system. I want to be able to connect a small camera such as a surveillance camera with night vision capability to a single board computer with LabVIEW installed on it. Also, I want to connect an accelerometer and a light sensor to the computer. While the car is running, I want the camera to record video with 5 minute loops. After a loop is over, the computer will record over the previous 5 minutes, therefore saving storage space. When the accelerometer senses a drastic change in velocity, the single-board computer will know NOT to record over the current 5 minute loop, enabling the owner to review what was recorded and determine the cause of the accident. My biggest problem is that I need a computer simulation for this by MONDAY for class, but I haven't even started yet! I have taken a few tutorials that comes with the software but I am still lost. Thanks to anyone who is willing to help!

--John

[muks]

What is the camera you are trying to use.What is the video format you can get?

[chris.b]

Hey John...

A few details that will help other posters...

- camera model?

- camera interface (firewire, USB, etc)?

- "single board computer" OS?

-  accelerometer interface and type?

- light sensor interface?

- does this computer have a data acquisition device?

Good luck!

[PSUstudent]

We just bought a USB Logitech QuickCam webcam (for computer simulation purposes) and successfully got it to display an image through labView. We do not have a single board computer yet, we want to make sure everything works on a laptop first before we spend $$$ on a SCB. I'm not sure if I have a light sensor and accelerometer interface, I was assuming this would all be in LabView. I also installed NI Vision development module. Any suggestions?

[AnalogKid2DigitalMan]

For your light and accelerometer signals, you will need some type of data acqusition hardware (DAQ card) to digitize those signals and work with them in LabVIEW.

[PSUstudent]

What would you suggest for this hardware? Again I am a LabVIEW "Virgin"! Any advice would help us a lot.

[chris.b]

This depends on your sensors and your single-board computer.

Which sensors have you picked out?  Are the all analog?  Do they require excitation?  Are you looking for a PCI interface or USB interface for the computer?

When you have some of these parameters narrowed down, you can look at http://www.ni.com/dataacquisition/ for our data acquisition hardware.

[PSUstudent]

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CXB wrote:

This depends on your sensors and your single-board computer.

Which sensors have you picked out?  Are the all analog?  Do they require excitation?  Are you looking for a PCI interface or USB interface for the computer?

When you have some of these parameters narrowed down, you can look at http://www.ni.com/dataacquisition/ for our data acquisition hardware.

---

Well I don't exactly have a SCB yet.. The sensors will more than likely be analog and will require excitation... I have access to a data acquisition board which I haven't messed with yet, I was just told we have one here at school. We would prefer USB interface but I'm not familiar with what I can or can't use.. 

[PSUstudent]

Hey guys I still need help... We did connect a USB webcam to the computer and loaded a template from LabVIEW. The program displayed the video image clearly. We would like to figure out how to make the program store the video... Is this possible? I could upload the program if that would help... Thanks

[chris.b]

Example: AVI Read Write With Data