test of the LIDAR Sick LMS151

[Sarxell]

Olá @vitoruapt e @miguelriemoliveira , Dificuldades e progressos no teste do LIDAR 2D LMS151.

[Sarxell]

Boa tarde professores, estou com um problema em relação a ver a informação do lidar. Eu instalei os drivers e consegui colocar o launch file a correr só com o lidar. No entanto este não me envia dados nenhuns.

Passado um tempo dá este aviso:

Eu tenho de ligar-me á rede ethernet do atlascar? Preciso de mudar algo no ip do computador?

[miguelriemoliveira]

Olá @Sarxell ,

Preliminary topic -------------

There is a better way to format the issues. Take a look here

https://github.com/miguelriemoliveira/simpleBot/issues/3

The first post is from Analtino, then the second one I was trying to show them how to better forma an issue.

One thing is that I cannot see the images.

---

About the issue, can you ping the lidar? What is the lidar's ip address and your computer's ipaddress?

[Sarxell]

when i run : ping 198.168.0.134

I get: From 198.168.0.134 icmp_seq=1 Destination Host Unreachable From 198.168.0.134 icmp_seq=4 Destination Host Unreachable From 198.168.0.134 icmp_seq=2 Destination Host Unreachable From 198.168.0.134 icmp_seq=3 Destination Host Unreachable ...

to see my ip: when I run : curl ifconfig.me

i receive: 193.137.168.32

when I run: ifconfig -a

I receive the following networks: eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.5 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::3b46:d1c3:2405:2f95 prefixlen 64 scopeid 0x20 ether 30:9c:23:92:c3:23 txqueuelen 1000 (Ethernet) RX packets 37 bytes 4272 (4.2 KB) RX errors 2 dropped 0 overruns 0 frame 1 TX packets 2279 bytes 372099 (372.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0xba200000-ba220000

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 79184 bytes 13897139 (13.8 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 79184 bytes 13897139 (13.8 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlp59s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.42.178 netmask 255.255.224.0 broadcast 192.168.63.255 inet6 fe80::c3ab:9533:976e:4720 prefixlen 64 scopeid 0x20 ether 00:e1:8c:c9:c7:1e txqueuelen 1000 (Ethernet) RX packets 114522 bytes 92783877 (92.7 MB) RX errors 0 dropped 53 overruns 0 frame 0 TX packets 70327 bytes 17869674 (17.8 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 `

[Sarxell]

In the readme file in "known problems" there is "Need to connect 2 cables: for ua ethernet and router set the router ipv4 automiatic" I only connected the LIDAR cable to my pc, do I need to have 2 ethernet ports?

[miguelriemoliveira]

Hi @Sarxell ,

I think we should zoom. When can you be near the car for a meeting?

[Sarxell]

Yes, I'm available all day tomorrow and wednesday.

[miguelriemoliveira]

Hi @Sarxell ,

ok, lets talk tomorrow at 9h by zoom? You should be near the car.

[Sarxell]

Ok!

[Sarxell]

Do I use the zoom meeting of the TP from PSR?

[miguelriemoliveira]

With the command

ifconfig

The output is:

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1442  bytes 119916 (119.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1442  bytes 119916 (119.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp0s20f3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.67  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::d566:649f:fe86:3dcb  prefixlen 64  scopeid 0x20<link>
        ether 04:6c:59:d7:b6:3a  txqueuelen 1000  (Ethernet)
        RX packets 93011  bytes 84391806 (84.3 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 76244  bytes 39522998 (39.5 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

example with python ...

    marker_array = MarkerArray()
    for marker in graphics['ros']['MarkersLabeled'].markers:
        print(marker.header.frame_id)
        prefix = marker.header.frame_id[:3]
        if prefix == 'c' + str(selected_collection_key) + '_':
            marker_array.markers.append(marker)

[Sarxell]

with the command

ifconfig

The output is:

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.2  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::329c:23ff:fe92:c323  prefixlen 64  scopeid 0x20<link>
        ether 30:9c:23:92:c3:23  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 415  bytes 41666 (41.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xba200000-ba220000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4286  bytes 577919 (577.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4286  bytes 577919 (577.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp59s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.42.178  netmask 255.255.224.0  broadcast 192.168.63.255
        inet6 fe80::c3ab:9533:976e:4720  prefixlen 64  scopeid 0x20<link>
        ether 00:e1:8c:c9:c7:1e  txqueuelen 1000  (Ethernet)
        RX packets 83550  bytes 69886170 (69.8 MB)
        RX errors 0  dropped 11  overruns 0  frame 0
        TX packets 51239  bytes 29944545 (29.9 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[Sarxell]

After the problem caused by windows (DO NOT USE THE CAMERAS IN WINDOWS!) the left and right LIDAR LMS151 worked well in rviz.

left laser

right laser

[miguelriemoliveira]

Great. So I would say you can create new version of the readme. Once its done let me know and I will test it.

[Sarxell]

I tried to create a new file but I don't have writing permission in this repository

[miguelriemoliveira]

resolvido.

• Miguel Riem de Oliveira * Diretor de curso Mestrado Eng. Automação Industrial email: @. | @. zoom: https://videoconf-colibri.zoom.us/j/7155402102 office: 22.2.18 | ext: 23887 Dep. de Engenharia Mecânica, Universidade de Aveiro Campus Universitário de Santiago, 3810-193 Portugal

On Mon, 20 Dec 2021 at 19:24, SaraPombinho @.***> wrote:

I tried to create a new file but I don't have writing permission in this repository

— Reply to this email directly, view it on GitHub https://github.com/lardemua/atlascar2/issues/21#issuecomment-998207177, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACWTHVW6BDXWEYQ25FVJVW3UR57GVANCNFSM5JZFAMYA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you were mentioned.Message ID: @.***>

[Sarxell]

Good morning @miguelriemoliveira , The parts that I changed in the Readme are in the file Readme_update.md

If there is something that may be better other way let me know and I will change it.

Boas festas!

[miguelriemoliveira]

Hi @Sarxell ,

you can just change the readme.md directly. That's why we have the git version control.

I will look at this later on. You should now focus on having some document with the state of the art to show us at the beginning / middle of january.

Boas Festas, bom trabalho, Miguel

[miguelriemoliveira]

Hi @Sarxell ,

I just looked into the new readme. It looks much better. Congratullations!