WorldViz User Forum  

Go Back   WorldViz User Forum > Precision Position Tracker (PPT)

Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 06-08-2009, 10:29 AM
Vic Vic is offline
Member
 
Join Date: Jun 2009
Posts: 10
Range of Cameras

Hello,

I am having a problem with two PPT-H cameras. I've noticed that one is able to track a range of 27 feet whereas the other is only able to track 14 feet. I've tried positioning the cameras side by side and aimed at the same angle, but one still had a significantly smaller range. I've also tried switching the cables of the two cameras, but the issue still remained. Is there any possible way to fix this?

Thanks,
Vic
Reply With Quote
  #2  
Old 06-09-2009, 09:18 AM
mspusch mspusch is offline
WorldViz Team Member
 
Join Date: Feb 2003
Posts: 223
the range of the PPT always depends on a lot of factors, most importantly the following:

- make sure to control external lighting as well as possible (i.e. the less infrared, the better and further the tracking will work)
- calibrate!
- read thru the docs carefully and adjust your tresholds
- do the 1-point test (this is important, as it might limit your range if this is wrong or not done)
- also, obviously make sure that your marker has good batteries or (if rechargable) is fully charged
- if it's a non-rechargable marker (i.e. one that contains normal batteries), make sure you are using a bright marker (the ones with the red dot) for large tracking distances
- in case you replace the Duracell batteries, which the markers are delivered with, with rechargabe ones, please make sure to use rechargable AAA batteries which produce 1.5V, and not such that produce 1.2V.

with PPT-H you should be able to track up to 40 to 60 feet from the cameras under normal circumstances (with controlled lighting), so if your range is as low as you describe, then most likely something is wrong with your settings.
Reply With Quote
  #3  
Old 06-11-2009, 07:19 AM
Vic Vic is offline
Member
 
Join Date: Jun 2009
Posts: 10
Unfortunately, I've tried all of the above and the camera still has half the range of the others. Our room is only about 30 feet long, so the true range of the other cameras is unknown, but that one camera definitely has a problem. We're going to ship it to WorldViz so they can have a look. Thanks for your help!

Vic
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PPT cannot find cameras tavaksai Precision Position Tracker (PPT) 1 10-24-2007 11:32 PM
Flock of birds extended range problem theuberk Vizard 4 07-30-2007 10:31 AM
cameras get confused by many LEDs tavaksai Precision Position Tracker (PPT) 9 05-19-2007 05:52 PM
3 cameras for VizPPT bstankie Precision Position Tracker (PPT) 3 01-07-2004 10:06 AM
Can I see infinite distance sled Vizard 2 07-16-2003 05:18 PM


All times are GMT -7. The time now is 05:32 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright 2002-2023 WorldViz LLC