Go to Post This is what happens when a couple of whackos get an idea at 2 am. - Rich Kressly [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 10-02-2014, 22:14
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,113
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Spikes and solenoids randomly hiccups when controlling over wireless

Quote:
Originally Posted by techbeast34 View Post
...changed the WiFi channel being used,...
Have you run a Wi-Fi channel scanner tool? Something like inSSIDer should be able to show you how congested your 802.11 band is, and perhaps let you choose a channel with little interference.
  #2   Spotlight this post!  
Unread 17-02-2014, 10:51
co1inw co1inw is offline
Student
AKA: Colin Willoughby
FRC #1768 (Nashoba Robotics)
Team Role: Programmer
 
Join Date: Feb 2014
Rookie Year: 2013
Location: United States
Posts: 2
co1inw is an unknown quantity at this point
Re: Spikes and solenoids randomly hiccups when controlling over wireless

Hello,
We are also having the same problem with our DLink. We have tried moving the DLink, changing Ethernet cables to the cRio, and using other DLinks from previous years. We even tried using a DLink with only two computers connected to it and nothing else. When we tried to ping one computer from the other, after a minute or so, the ping response would be very slow for a few seconds, then go back to normal. When we did this same ping test while the cRio was connected, the slow ping response corresponded to the hiccups on the robot. The hiccups will happen anywhere from a minute apart to 5 minutes apart. I have attached links to some images from the Driver Station log viewer that shows the hiccups happening. the blue spikes on the graph show packet loss.

Ping test image with the computers

Driver Station Log

Zoomed in hiccup on Log Viewer
Attached Thumbnails
Click image for larger version

Name:	full_log.png
Views:	6
Size:	53.5 KB
ID:	16270  Click image for larger version

Name:	zoomed_in.png
Views:	6
Size:	49.2 KB
ID:	16271  Click image for larger version

Name:	cmd.png
Views:	4
Size:	16.4 KB
ID:	16272  
Closed Thread


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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:55.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi