RuntimeError: Cannot find any device with given deviceInfo

HaseenaS

I am running some models in OAKD pro camera. i am running it 24x7 continuously for real time monitoring. but i get the following error

device: dai.Device = stack.enter_context(dai.Device(openVinoVersion, deviceInfo, usbSpeed))

i tried using thread as i am running three cameras simultaneously, i tried to restart the camera as daemon but again it failed reconnecting after fewer attempts. What can i do so that the camera restarts even if it closes automatically. still there is no solution for me why camera is closing automatically. RuntimeError: Failed to find device after booting, error message: X_LINK_DEVICE_NOT_FOUND. but i tried handling this exception. but any thing didnt work out. Provide me some solution

jakaskerl

HaseenaS
Which device info are you specifying? Are you doing it dynamically (using getAllAvailableDevices()) or statically using MXID/IP?

Thanks,
Jaka

HaseenaS

I have assigned Static IP for the camera

jakaskerl

HaseenaS

Update the bootloader to improve stability. The code will not need to be changed.

> HaseenaS I have assigned Static IP for the camera
Use getAllAvailableDevices() as in here

import depthai
for device in depthai.Device.getAllAvailableDevices():
    print(f"{device.getMxId()} {device.state}")

Thanks,
Jaka

HaseenaS

Is the issue of the camera stopping is because bootloader is outdated(0.0.22). if i update the bootloader, will this issue be resolved. i have written code which is running well in my camera, apart from camera automatically stops there is no other issue. but, if i update to latest bootloader will the code get affected? clarify? @jakaskerl @erik

HaseenaS

yes i can list all the cameras. there is no reason that a camera will shut down. i have to rerun the code everytime manually to get it started

HaseenaS

can you say me the reason why the camera is shutting and does not restart at all

erik

@HaseenaS it's a bootloader issue - in some cases (abrupt disconnection), old bootloader got into a state where it didn't boot the FW back up correctly, and the only possible solution was to power cycle the device. Newer bootloader (0.26 and later) fixed this issue.

HaseenaS

will bootloading affect my code? will any of my data get corrupted? @erik

jakaskerl

HaseenaS
Not likely. Your data is probably not stored on the device and even if, it's most likely in EMMC not flash. Anyhow the update should not overwrite existing data (only the bootloader part).

Thanks,
Jaka

HaseenaS

I have assigned static ip for my camera. if i try bootloading, i dont get the device list when i search it or use ip address instead.. can you help with this. @erik @jakaskerl

HaseenaS

I am getting the following error:

Exception in E:\depthai-python\utilities\device_manager.py, line 385; Failed to find device after booting, error message: X_LINK_DEVICE_NOT_FOUND

jakaskerl

HaseenaS
So your device is found first, then when trying to boot the device it becomes unavailable. This points to a POE power issue or some TCP block.

What is the IP of your host machine and IP you have assigned to the device?

Thanks,
Jaka

HaseenaS

I connected through USB and now the issue is resolved.

HaseenaS

As per your suggestion i performed bootloading with latest version 0.26. but still the camera stops while running. camera encountered an error, could not find any device with given device info. What is the solution to camera shutdown issue? @erik @jakaskerl

jakaskerl

HaseenaS
If you were able to update to 0.0.26, it means you are using some older depthai version. Could you update to depthai 2.28 and bootloader 0.0.28? Also can you post the log of when the crash happens? I'm interested to see the error message you receive.

Thanks,
Jaka

HaseenaS

Please help me resolve the issue. I am running my python code in POE camera. I have three cameras which will capture the environment from different perspectives. I have connected three cameras through ethernet connection in the same network. there is no downtime for my network. I have 6 YOLOV8 models running in my code. I have time-synced the cameras and I have used threads to run all three cameras in parallel. Initially all the three cameras run fine, but after sometimes camera starts disconnecting… Then i have to rerun the code again to make the camera run after sometimes. i want to operate in an environment where the code runs 24x7. How to fix the issues. I have bootloaded to the latest version. If any of the camera got disconencted, i have to wait sometimes before restarting or it will not get connected if I start immediately. @jakaskerl @erik

jakaskerl

HaseenaS
Can you check the CPU usage on the cameras? DEPTHAI_LEVEL=DEBUG env variable followed by the command to call the script.

Thanks,
Jaka