Error connecting to Hokuyo: Could not open network Hokuyo
Application/Library version: ros-kinetic-urg-node is already the newest version (0.1.11-0xenial-20180516-164741-0800). Operating System: Ubuntu 16.04 LTS
I want to work with ROS-kinetic with hokuyo ust-20LX. I connected V+ (brown) V- (blue) pins with 12V adaptor. I can not communicate with ethernet. I am getting the error that the Ethernet port could not be opened. I don't know how to solve the problem. can you help me, please?
error output;
$ roscore
$ rosrun urg_node urg_node _ip_address:="192.168.0.10"**
[ERROR] [1531482879.325555899]: Error connecting to Hokuyo: Could not open network Hokuyo:
192.168.0.10:10940
could not open ethernet port
.
$ ping 192.168.0.10
PING 192.168.0.10 (192.168.0.10) 56(84) bytes of data.
From 10.182.78.58 icmp_seq=6 Packet filtered
From 10.182.78.58 icmp_seq=8 Packet filtered
From 10.182.78.58 icmp_seq=9 Packet filtered
From 10.182.78.58 icmp_seq=10 Packet filtered
From 10.182.78.58 icmp_seq=12 Packet filtered
From 10.182.78.58 icmp_seq=13 Packet filtered
^C
--- 192.168.0.10 ping statistics ---
14 packets transmitted, 0 received, +6 errors, 100% packet loss, time 13183ms
pipe 3
Asked by pers on 2018-07-13 08:05:44 UTC
Answers
Below should be the correct output.
PING 192.168.0.10 (192.168.0.10) 56(84) bytes of data. 64 bytes from 192.168.0.10: icmp_seq=1 ttl=64 time=0.535 ms 64 bytes from 192.168.0.10: icmp_seq=2 ttl=64 time=0.228 ms
You need to configure both the IP address and Netmask. Double check on the "Details" panel. My changes didn't reflect there. I made it work by removing the connection profile and adding another one.
Asked by wenchao on 2023-03-03 13:10:39 UTC
Comments
Can you please describe how you're connecting the hokuyo lidar to your computer and what network configuration you're using. You will have to setup the ethernet settings correctly on ubuntu first before this will work.
Asked by PeteBlackerThe3rd on 2018-07-14 05:21:33 UTC
I'm not sure how to make a configuration.
I tried the following configuration but didn't work;
auto eth0 iface eth0 inet dhcp
auto eth0:0 iface eth0:0 inet static address 192.168.0.15 netmask 255.255.255.0
is it possible to connect internet with wifi while also connecting lidar with ethernet?
Asked by pers on 2018-07-15 10:59:51 UTC
Plan A: place the output of the command: ifconfig
Plan B: https://acroname.com/blog/resetting-ip-address-hokuyo-ust-10lx-and-ust-20lx-sensors
Asked by 0xd1ma on 2018-07-17 14:36:34 UTC
According to the output of ping your computers IP address is 10.182.78.58 so it's not on the same subnet as the lidar. I'd recommend using the ubuntu GUI and setting up a manual network with a static IP and subnet mask.
Asked by PeteBlackerThe3rd on 2018-07-18 06:49:50 UTC
I configure the ethernet connection; Address: 192.168.0.15 NetMask: 255.255.255.0 Gateway:192.168.0.1
I can connect to the lidar but wifi does not enter the internet when the lidar connection is provided. How can I provide both ethernet and wifi connections at the same time?
Asked by pers on 2018-07-18 07:01:17 UTC
You're in Unix network configuration territory here, but there is plenty of info out there. This question has two good solutions to your internet access problem.
Asked by PeteBlackerThe3rd on 2018-07-18 10:51:34 UTC