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Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 3:13 am
by asker
Sure. See ml_sequence here
https://github.com/pliablepixels/mlapi/ ... config.ini
whether you use mlapi or not the structure is the same.
Also I’ve added more clarifications here
https://zmeventnotification.readthedocs ... s-versions on how this works.
Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 8:44 pm
by VicThor
works great with the sequence but now makes me wonder if its worth having tpu at all, how much is it run on cpu.
I saw this in the config show_models=no, changed it to yes but it does not tag the models in zm.
Is there something extra I need to do?
Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 9:17 pm
by asker
You can inspect the logs for now - that will tell you if Yolo got invoked. In my case, Yolo isn't called much, but your case can be different.
show_models worked for me last night - however my server crashed and I can't test till end of Jan (new server will take time to arrive).
I don't recall if I made a pyzm release with the fixed code, but you should make sure you are on the latest pyzm on pip. If it doesn't work, use pyzm master.
Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 9:22 pm
by VicThor
cheers
Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 10:37 pm
by VicThor
Updating just pyzm did not do the trick but then I updated all pip3 packages and it works, sweet.
Re: zmevennotification object detection on edge tpu
Posted: Sun Jan 10, 2021 11:08 pm
by asker
Okay. Feel free to post samples.
I have to live life vicariously till I get a new computing environment.
Re: zmevennotification object detection on edge tpu
Posted: Mon Jan 11, 2021 8:32 pm
by VicThor
For me it's mostly yolo, coral seems to need a clearer picture with whole objects. I don`t mind it at all and I think the sequence works great.
Awesome work asker.
I was thinking about the sequence as it moves to the next step only if the first failed, what if you can run multiple models or weights regardless if it fails or not? For example 1st run object weights then run birds and so on.
Re: zmevennotification object detection on edge tpu
Posted: Tue Jan 12, 2021 2:44 am
by asker
You can do that too. Take a look at the docs I linked to above. You can change patterns per model type as well as use most as same model sequence strategy.
Re: zmevennotification object detection on edge tpu
Posted: Wed Jan 13, 2021 12:43 am
by VicThor
That's super cool, i guess there is no way to keep both detections on the image?
Doing more testing i increased no of processes for cpu and tpu both to 6 (as I got 6 cameras, 3 on mocord) and decreases tpu detection from 0.6 to 0.55 and now it's running mostly coral model, at least during the day.
However I noticed some errors in the logs as coral stopped working after a day:
/zm_detect.py[17684]: ERR [zmesdetect_m5] [Error running model: Failed to load delegate from libedgetpu.so.1#012]
It's still working but last night the logs were filled with this and coral detection stopped working all together. Restarting zm fixed the issue, for now, error still in the logs now and then.
Re: zmevennotification object detection on edge tpu
Posted: Wed Jan 13, 2021 1:07 pm
by asker
VicThor wrote: ↑Wed Jan 13, 2021 12:43 am
Doing more testing i increased no of processes for cpu and tpu both to 6 (as I got 6 cameras, 3 on mocord) and decreases tpu detection from 0.6 to 0.55 and now it's running mostly coral model, at least during the day.
However I noticed some errors in the logs as coral stopped working after a day:
/zm_detect.py[17684]: ERR [zmesdetect_m5] [Error running model: Failed to load delegate from libedgetpu.so.1#012]
What I noticed is doing simultaneous invocations may cause this issue. In my case, I noticed similar errors the moment I increased simultaneous invocations to 3 or more and occasionally on 2. However, I did not test it thoroughly. This is why I keep TPU to 1 as it is pretty fast and I don't mind other invocations hanging around to grab a lock while detections process one at a time.
Re: zmevennotification object detection on edge tpu
Posted: Thu Jan 14, 2021 3:28 am
by VicThor
Yea, I thought so, does not seem to be able to handle concurrency well, in fact the stick goes in a flashing light mode until re-inserted.
Re: zmevennotification object detection on edge tpu
Posted: Tue Jun 15, 2021 7:08 am
by juan11perez
Good day. I've added coral in the dlandon docker following all the instructions and when I test with the following I get the below error:
Code: Select all
sudo -u www-data /var/lib/zmeventnotification/bin/zm_detect.py --config /etc/zm/objectconfig.ini --debug --eventid 14891
Code: Select all
06/15/21 10:54:08 zmesdetect[3125] ERR detect_sequence.py:688 [Error running model: Failed to load delegate from libedgetpu.so.1
]
06/15/21 10:54:08 zmesdetect[3125] DBG2 detect_sequence.py:689 [Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 152, in load_delegate
delegate = Delegate(library, options)
File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 111, in __init__
raise ValueError(capture.message)
ValueError
I've searched and came across this post
https://zmeventnotification.readthedocs ... ls-loading
The issue here is that I'm using exactly the same coral half-pcie board in unraid with frigate
https://github.com/blakeblackshear/frigate and it works without any issue. Frigate can read and load the coral without any problem.
In this regard I have a question and please excuse my limited knowledge as I'm an enthusiast learning by research, trial and error:
Is there any difference in configuring the ES to load a USB coral or a PCIE based coral ?
One more thing; when I type the following in the zm docker it shows the coral. So it can see it.
Code: Select all
root@UNRAID:/# ls /dev/apex_0
/dev/apex_0
Any guidance is much appreciated. Thank you.
Re: zmevennotification object detection on edge tpu
Posted: Fri Jun 18, 2021 10:50 am
by juan11perez
So answering my own question; I found the problem. In the container /dev/apex_0 does not have sufficient privileges
chmod 777 /dev/apex_0 >> fixes the problem and the edgetpu loads immediately.
However, the performance is very poor. With the coral and gpu the cpu still spikes to 70% on object detection.
I have modified the objectconfig.ini per the instructions, so not sure what else can be done.
Code: Select all
'name': 'TPU object detection',
'enabled': 'yes',
Code: Select all
'name': 'TPU face detection',
'enabled': 'yes',
In comparison with Frigate
https://github.com/blakeblackshear/frigate the cpu practically stays unchanged.
Re: zmevennotification object detection on edge tpu
Posted: Sat Jun 19, 2021 5:00 pm
by asker
Check your logs, make sure TPU is actually being used. Also, use mlapi - if you are loading models on each run, it might cause spikes. In my case, CPU goes from 10%-17% when a detection happens on TPU
Re: zmevennotification object detection on edge tpu
Posted: Mon Jun 21, 2021 9:44 pm
by VicThor
Hey asker, can you keep models always loaded?