电脑可能同时连接两台D435相机吗

欢迎来到社区！
您可以使用RealSense SDK 2.0附带的RealSense Viewer软件查看来自多个摄像头的流。
您可以从下面的链接下载RealSense SDK 2.0。
发布·IntelRealSense / librealsense·GitHub
安装RealSense SDK 2.0并运行RealSense Viewer软件后，您可以通过单击选项侧面板顶部的“添加源”选项并选择第二个D435来插入第二个摄像头并访问其中的各个控件。
从下拉菜单中的相机。
在下面的示例中，我使用D415相机启动Viewer，然后插入SR300型号作为我的第二个相机，并从“添加源”菜单中选择它。
然后将第二台摄像机添加到侧面板，作为该摄像机的一组独立控件。



以下为原文

Welcome to the community!
 
You can view streams from more than one camera using the RealSense Viewer software that comes with RealSense SDK 2.0.
 
You can download RealSense SDK 2.0 from the link below.
 
Releases · IntelRealSense/librealsense · GitHub
 
Once RealSense SDK 2.0 is installed and you have run the RealSense Viewer software, you can plug in your second camera and access the individual controls for it by clicking on the Add Source option at the top of the options side-panel and selecting your second D435 camera from the drop-down menu.
 
In the example below, I start the Viewer with a D415 camera and then insert an SR300 model as my second camera and select it from the Add Source menu.
 

 
The second camera is then added to the side-panel as a separate set of controls for that camera.
 

嗨马蒂，
谢谢你的快速回答。
我按照您共享的说明操作，可以看到一个RealSense相机的输出，但不能看到其他真实感。
它说固件升级，所以我按照它通过的链接。
我找到了Ubuntu 16.04最新固件的参考资料来安装二进制文件：
https://www.intel.com/content/dam/support/us/en/documents/emerging-technologies/intel-realsense-technology/Linux-RealSense-D400-DFU-Guide.pdf
但不幸的是，它不适用于Ubuntu 18.04。
你能分享一下可以用我的Ubuntu版本的参考吗？
谢谢你的帮助
亲切的问候
阿伦



以下为原文

Hi Marty,
Thank you for the quick answer.
I followed the instructions shared by you and could see the output from one RealSense Camera, but not the other realSense.
 
It says the firmware upgrade, so I followed the link it takes me through. I found the reference for latest firmware for Ubuntu 16.04 to install the binary:
https://www.intel.com/content/dam/support/us/en/documents/emerging-technologies/intel-realsense-technology/Linux-RealSense-D400-DFU-Guide.pdf
 
But unfortunately, it's not working for Ubuntu 18.04.
Can you share the reference which can work with my Ubuntu version.
 
Thank you for the kind help
 
Kind Regards
Arun

我想为我之前的（最近的）请求提供屏幕截图。     
Problem.jpg 
629.6 K.



以下为原文

I want to put the screenshot for my earlier (recent) request.

•   Problem.jpg 629.6 K
  
  

如果您只想查看每个摄像头的流而不将两个摄像头同步到精确对齐，那么就我所知，您不需要固件更新。
每个摄像头都有自己的激活图标，您需要左键单击每个摄像头的“立体声模块”旁边的红色图标，将图标从红色变为蓝色。
然后两个摄像机的流应出现在同一屏幕上。
编辑：在您提供的图片上，您只有一个D435。
您是否使用添加源添加第二个D435？
编辑2：我还从图像中看到您确实有一个需要更新的旧固件。



以下为原文

If you just want to view the streams from each camera without synching the two cameras together into precise alignment then you should not need a firmware update as far as I know.  Each camera has its own activation icon, and you need to left-click on the red icon beside the words 'Stereo Module' for each individual camera to turn the icon from red to blue. Then both cameras' streams should appear on the same screen.
 

 
Edit: on your kindly provided image, you only have one D435 there.  Have you used Add Source to add the second D435?
 
Edit 2: I also see from the image that you do have an old firmware that needs updating.

有一种情况是用户能够成功地更新Ubuntu 18.04上的固件。
在他们的情况下，问题是他们将相机插入USB 2.0端口而不是USB 3端口。
无法从Linux升级D435固件·问题＃1986·IntelRealSense / librealsense·GitHub
根据您提供的图像判断，这似乎不是您的情况下的问题。
固件更新程序工具还需要现代USB 3.1端口。
您是否可以提供尝试更新的屏幕图像，请将其失败，以便我们可以看到出现的任何错误消息。



以下为原文

There has been a case where a user was successfully able to update the firmware on Ubuntu 18.04.  In their case, the problem was that they had the camera plugged into a USB 2.0 port instead of a USB 3 port.
 
Unable to upgrade D435 firmware from Linux · Issue #1986 · IntelRealSense/librealsense · GitHub
 
This does not seem to be the problem in your case though, judging by the image your provided.
 
The firmware updater tool also requires a modern USB 3.1 port.
 
Could you supply an image of the screen where you attempt the update and it fails, please, so we can see any error messages that occur.

嗨马蒂，
我可以捕获来自两个相机的流。
请参阅附件。
但是在一段时间之后它会在控制台中留下以下日志而死亡：
arun @ arun：〜$ realsense-viewer 
27/09 14：09：41,467警告[140392066074368]（sensor.cpp：338）未注册的媒体格式：[UYVY];
支持的： [ ] 
27/09 14：09：44,551警告[140392032503552]（ds5-timestamp.cpp：64）UVC元数据有效负载不可用。
有关详细信息，请参阅安装章节。 
27/09 14：09：57,033 ERROR [140392080574208]（types.h：179）get_dev_capabilities：无法打开'/ dev / video5上次错误：权限被拒绝 
27/09 14：09：57,034 ERROR [140392080574208]（types.h：179）get_dev_capabilities：无法打开'/ dev / video3上一个错误：权限被拒绝 
27/09 14：09：57,034 ERROR [140392080574208]（types.h：179）get_dev_capabilities：无法打开'/ dev / video4上一个错误：权限被拒绝 
27/09 14：10：04,174警告[140392328851328]（sensor.cpp：338）未注册的媒体格式：[UYVY];
支持的： [ ]
---
过了一段时间说3-4分钟（观察到2次尝试）
---
---
---
27/09 14：08：38,996 ERROR [140218460006144]（types.h：179）get_xu（...）。
xioctl（UVCIOC_CTRL_QUERY）失败上次错误：文件描述符错误
27/09 14：08：38,996 ERROR [140218460006144]（error-handling.cpp：66）轮询错误处理程序错误：get_xu（...）。
xioctl（UVCIOC_CTRL_QUERY）失败上次错误：文件描述符错误
好像，ioctl问题
亲切的问候
阿伦     
mySetup.jpg 
559.3 K.



以下为原文

Hi Marty,
I could capture the stream from both the Cameras.
Please see the attachment.
 
But its dying after sometime leaving the following logs in console:
 
arun@arun:~$ realsense-viewer
27/09 14:09:41,467 WARNING [140392066074368] (sensor.cpp:338) Unregistered Media formats : [ UYVY ]; Supported: [ ]
27/09 14:09:44,551 WARNING [140392032503552] (ds5-timestamp.cpp:64) UVC metadata payloads not available. Please refer to installation chapter for details.
27/09 14:09:57,033 ERROR [140392080574208] (types.h:179) get_dev_capabilities: Cannot open '/dev/video5 Last Error: Permission denied
27/09 14:09:57,034 ERROR [140392080574208] (types.h:179) get_dev_capabilities: Cannot open '/dev/video3 Last Error: Permission denied
27/09 14:09:57,034 ERROR [140392080574208] (types.h:179) get_dev_capabilities: Cannot open '/dev/video4 Last Error: Permission denied
27/09 14:10:04,174 WARNING [140392328851328] (sensor.cpp:338) Unregistered Media formats : [ UYVY ]; Supported: [ ]
 
---
After sometime say 3-4 mins (Observed 2 Attempts)
---
---
---
27/09 14:08:38,996 ERROR [140218460006144] (types.h:179) get_xu(...). xioctl(UVCIOC_CTRL_QUERY) failed Last Error: Bad file descriptor
27/09 14:08:38,996 ERROR [140218460006144] (error-handling.cpp:66) Error during polling error handler: get_xu(...). xioctl(UVCIOC_CTRL_QUERY) failed Last Error: Bad file descriptor
 
Seems, the ioctl problem
 
Kind Regards
Arun

•   mySetup.jpg 559.3 K
  
  

RE：无法从Linux升级D435固件·问题＃1986·IntelRealSense / librealsense·GitHub
我在设置之前遵循以下线程：
Linux固件更新工具？
在本帖子中，她已在实验室中对此进行了测试，并在我的Ubuntu 18.04上成功更新。



以下为原文

RE: Unable to upgrade D435 firmware from Linux · Issue #1986 · IntelRealSense/librealsense · GitHub
 
I followed the below Thread before setup:
Linux firmware update tool?
 
Seems in this Post, she has tested this in lab, and it updated successfully on my Ubuntu 18.04.

你还有上面列出的错误吗？



以下为原文

Do you still have the errors you listed above?

嗨马蒂，
我将设置打开，同时启用了两个流。
过去15分钟我没有看到问题。
如果测试中断，我会再写一次
非常感谢马蒂为减轻快速帮助...
亲切的问候
阿伦



以下为原文

Hi Marty,
 
I left the setup open with both the stream enabled for sometime. I don't see the problem for past 15 Mins.
If the test breaks, I will write once again
 
Thank you very Much Marty for lightening fast help..
 
Kind Regards
Arun

非常欢迎你。
请随时返回论坛。
祝你有美好的一天！



以下为原文

You're very welcome.  Please feel free to return to the forum any time that you need to.  Have a great day!