When I connect the VLP-16, the connection works fine, but after a few minutes Ubuntu indicates that the connection has been disconnected.
These are the commands I input into the terminal to get a data feed.
sudo ifconfig eth0 up
sudo ip addr add 192.168.1.200 dev eth0
sudo route add -net 192.168.1.0 netmask 255.255.255.0 dev eth0
roslaunch velodyne_pointcloud VLP16_points.launch calibration:=/home/user/PUCK_Calibration.yaml
I need the connection to be stable between the laptop and the LIDAR for a very long time. Is there a stable way to establish a connection? Because when it disconnects, I need to rerun those commands to get data from the lidar again.
Am I doing something wrong?
I am using Ubuntu 14.04 LST with ROS Indigo.
Originally posted by kparikh on ROS Answers with karma: 53 on 2016-11-17
Post score: 0
Original comments
Comment by gvdhoorn on 2016-11-18:
Are you on a wireless network? Or a network with a DHCP server that has a very short lease-time?
Comment by kparikh on 2016-11-18:
I am on a wireless network. Do I need to turn off wifi while connected to the LIDAR?
Comment by gvdhoorn on 2016-11-18:
No, as your lidar is on a wired connection it should not matter. I was just wondering if frequent disconnects on your wireless might trigger a DHCP release/renew cycle. That could result in loss of routes, leading to what you described.
Comment by gvdhoorn on 2016-11-18:
In general though: unless you need your eth0 for something else, why not just configure it with a static IP? No need to fiddle with ip addr and adding routes.
Comment by kparikh on 2016-11-18:
I'll give that a shot. I was having trouble before when I wasn't fiddling with the ip addr but I'll see if I can make it work with just a static IP.
I was following this answer.
Comment by gvdhoorn on 2016-11-19:
Please just accept your own answer instead of closing the question with just some comments. That will more clearly mark this question as answered. Thanks.
Comment by kparikh on 2016-11-19:
If you don't mind, could you write the answer out. I don't have enough points to accept my own answer yet. I'll accept yours and close it.
Comment by gvdhoorn on 2016-11-19:
I've accepted it for you. Good to hear you got things to work.
Comment by kparikh on 2016-11-19:
Thanks for the help.