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  3. 无法从 Docker 容器内访问以太网摄像头

无法从 Docker 容器内访问以太网摄像头

user10627299 2月前
82 0

操作系统：Ubuntu 22.04.4 LTSPylon：pylon_7.5.0.15658-deb0_amd64 摄像头连接到以太网接口 enp0s31f6，该接口位于静态 ip 192.168.2.10/255.255.255.0 上。摄像头位于静态 ip 192....

操作系统：Ubuntu 22.04.4 LTS
塔：pylon_7.5.0.15658-deb0_amd64

摄像机连接到以太网接口， enp0s31f6 该接口使用静态 IP 192.168.2.10/255.255.255.0 。摄像机使用静态 IP 192.168.2.11/255.255.255.0 .

我构建了 pylon-ros-camera ，它成功检测到了相机enter image description here

但是，即使我成功地在 Docker 容器内构建了相同的包，它也无法检测到摄像头。

我尝试过

  • 为了让容器能够看到主机上的接口，我以网络方式运行容器 docker run --network=host -d myimage ... 。现在，如果我 ifconfig 在容器内运行，它会显示与主机上相同的接口。请参见 ifconfig 主机和容器内的输出。但是，它仍然无法检测到摄像头。
  • 我以扩展权限运行了容器 docker run --network=host --privileged -v /dev:/dev -d ... 。但是，它仍然无法检测到相机。

可能存在什么问题？

主机上的 IFCONFIG 

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        inet6 fe80::42:cff:fe29:3048  prefixlen 64  scopeid 0x20<link>
        ether 02:42:0c:29:30:48  txqueuelen 0  (Ethernet)
        RX packets 602988  bytes 31801390 (31.8 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 701650  bytes 5591761213 (5.5 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s31f6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.2.10  netmask 255.255.255.0  broadcast 192.168.2.255
        inet6 fe80::ada5:60b0:e461:3007  prefixlen 64  scopeid 0x20<link>
        ether 9c:6b:00:07:61:79  txqueuelen 1000  (Ethernet)
        RX packets 10880082  bytes 16425539680 (16.4 GB)
        RX errors 9  dropped 0  overruns 0  frame 9
        TX packets 54503  bytes 3794035 (3.7 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 19  memory 0x72500000-72520000  

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 240419  bytes 70007245 (70.0 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 240419  bytes 70007245 (70.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.19  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::40ef:b0b9:5215:18e7  prefixlen 64  scopeid 0x20<link>
        ether f0:b6:1e:a2:b6:92  txqueuelen 1000  (Ethernet)
        RX packets 6337099  bytes 8614290755 (8.6 GB)
        RX errors 0  dropped 6672  overruns 0  frame 0
        TX packets 1492973  bytes 542835548 (542.8 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

容器内的 IFCONFIG 

root@docker-desktop:/home/basler_ws# ifconfig
br-aa73862743b3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.20.0.1  netmask 255.255.0.0  broadcast 172.20.255.255
        inet6 fe80::42:18ff:fe68:6f5e  prefixlen 64  scopeid 0x20<link>
        ether 02:42:18:68:6f:5e  txqueuelen 0  (Ethernet)
        RX packets 12  bytes 699 (699.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 17  bytes 12202 (12.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

br-fb4a1a6ffdce: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.2.1  netmask 255.255.255.0  broadcast 192.168.2.255
        inet6 fe80::42:12ff:feaf:abcc  prefixlen 64  scopeid 0x20<link>
        ether 02:42:12:af:ab:cc  txqueuelen 0  (Ethernet)
        RX packets 26  bytes 4052 (4.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 68  bytes 13912 (13.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:be:4c:46:18  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.65.9  netmask 255.255.255.0  broadcast 192.168.65.255
        inet6 fe80::5054:ff:fe12:3456  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:12:34:56  txqueuelen 1000  (Ethernet)
        RX packets 19853  bytes 2562859 (2.5 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 18195  bytes 7005442 (7.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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 140  bytes 18520 (18.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 140  bytes 18520 (18.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

services1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.65.6  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::3c19:b1ff:fe38:ffcb  prefixlen 64  scopeid 0x20<link>
        ether 3e:19:b1:38:ff:cb  txqueuelen 0  (Ethernet)
        RX packets 46  bytes 3709 (3.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 83  bytes 15611 (15.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth150498a: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::30b3:9eff:fe24:7a7a  prefixlen 64  scopeid 0x20<link>
        ether 32:b3:9e:24:7a:7a  txqueuelen 0  (Ethernet)
        RX packets 26  bytes 4416 (4.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 109  bytes 19474 (19.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
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  • 引用 3楼

    我正在制作一款多人游戏，到目前为止，我已经制作了一个可以移动的玩家、一个平台和多人连接的框架。我确保在制作过程中测试主机和客户端的连接情况

    我正在制作一款多人游戏，到目前为止，我制作了一个可以移动的玩家、一个平台和多人连接框架。在构建项目时，我确保测试主机和客户端的连接，一旦我为每个玩家提供了一个跟随他们并可以旋转的摄像头，客户端就会突然不再加入游戏。单击主机按钮会将您放入游戏中并按预期工作，但之后作为客户端加入不会将您生成在平台上。我也没有收到任何错误。以下是可能导致问题的脚本：首先： 

    using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Unity.Netcode;
using Unity.Netcode.Transports.UTP;


[System.Serializable]
public struct PlayerNetworkState : INetworkSerializable
{
    public Vector3 Position;
    public Vector3 Rotation;

    public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
    {
        serializer.SerializeValue(ref Position);
        serializer.SerializeValue(ref Rotation);
    }
}


public class PlayerNetwork : NetworkBehaviour
{
    [SerializeField] private bool usingServerAuth;
    private NetworkVariable<PlayerNetworkState> playerState;
    private Rigidbody playerRb;

    private void Awake()
    {
        playerRb = GetComponent<Rigidbody>();
        var permission = usingServerAuth ? NetworkVariableWritePermission.Server : NetworkVariableWritePermission.Owner;
        playerState = new NetworkVariable<PlayerNetworkState>(new PlayerNetworkState {Position = Vector3.zero, Rotation = Vector3.zero}, NetworkVariableReadPermission.Everyone, permission);
    }

    public override void OnNetworkSpawn()
    {
        if (!IsOwner) {
            Destroy(transform.GetComponent<Player>());
            Destroy(transform.GetComponent<CamController>());
        }
    } 

    private void Update()
    {
        if (IsOwner) TransmitState();
        else ConsumeState();
    }

    #region Transmit State

    private void TransmitState()
    {
        var state = new PlayerNetworkState
        {
            Position = playerRb.position,
            Rotation = transform.rotation.eulerAngles
        };

        if (IsServer || !usingServerAuth)
        {
            playerState.Value = state;
        }
        else
        {
            TransmitStateServerRpc(state);
        }
    }

    [ServerRpc(RequireOwnership = false)]
    private void TransmitStateServerRpc(PlayerNetworkState state)
    {
        playerState.Value = state;
    }

    #endregion

    #region Consume State

    private void ConsumeState()
    {
        transform.position = playerState.Value.Position;
        transform.rotation = Quaternion.Euler(playerState.Value.Rotation);
    }

    #endregion
}

    第二： 

    using System.Collections;
using System.Collections.Generic;
using Unity.Netcode;
using UnityEngine;

public class Player : NetworkBehaviour
{
    private Rigidbody playerRb;
    public GameObject camHolderPrfb;
    public GameObject camHolder;
    public float speed;

    void Start()
    {
        camHolder = Instantiate(camHolderPrfb, transform.position, Quaternion.identity);
        playerRb = GetComponent<Rigidbody>();
        
    }

    void Update()
    {
        //Makes sure player can only control its character
        if (!IsOwner) {return;} 
        //Calculates player movement
        float forwInput = Input.GetAxis("Vertical");
        float horzInput = Input.GetAxis("Horizontal");
        Vector3 direction = camHolder.transform.forward * forwInput + camHolder.transform.right * horzInput;
        //Applies movement to player
        if (direction.magnitude > 1) {direction.Normalize();}
        playerRb.AddForce(direction * speed);
        
    }
}

    第三： 

    using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using Unity.Netcode;

public class CamController : NetworkBehaviour
{

    public float rotationSpeed;
    public float lerpSpeed;
    public GameObject camHolder;
    private Camera playerCamComp;
    private GameObject playerCam;
    public Player PlayerScr;

    void Start() 
    {
        camHolder = PlayerScr.camHolder;
        playerCamComp = camHolder.GetComponentInChildren<Camera>();
        playerCam = playerCamComp.gameObject;
    }

    void FixedUpdate()
    {
        //Camera is rotatable with left and right keys
        float camInput = Input.GetAxis("MoveCam");
        camHolder.transform.Rotate(Vector3.up, camInput * Time.deltaTime * rotationSpeed);
        //Camera moves and looks at the player
        camHolder.transform.position = Vector3.Lerp(camHolder.transform.position, transform.position, lerpSpeed * Time.deltaTime);
        playerCam.transform.LookAt(this.transform);
    }
}

    所有脚本都分配给了玩家。还有一个脚本，当单击其中一个按钮时，它会生成启动主机、服务器和客户端按钮并停用主摄像头，这样玩家摄像头就可以代替它。如果您可能需要这个，请告诉我。绝对没有任何错误可以引导我朝着正确的方向前进，我甚至不知道在哪里添加日志进行调试。

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