[Support]: Frigate+ model not working and throws Edge TPU error

[gacekk]

Describe the problem you are having

Hi,

I have had a custom model generated, and want to use it. Setup before adding model is that I am running Frigate with default model, Edge TPU connected to my mini PC over USB and no issues in logs, all is working fine.

Once I add the code for my custom model, from the line for Edge Tpu, save the config and restart I am getting below error.

Only difference is that I added below line, to current config file. Of course I substituted the default value with that from my model:

Version

0.12.1-367D724

Frigate config file

detectors:
  coral:
    type: edgetpu
    device: usb
record:
  enabled: True
  retain:
    days: 1
    mode: motion
  events:
    retain:
      default: 7
      mode: active_objects
detect:
  stationary:
    interval: 0
    threshold: 500
objects:
  track:
    - person
    - cat
    - dog
    - car
    - giraffe
database:
  path: /config/frigate.db
model:
  path: plus://e63b7345cc83a84ed79dedfc99c16616 //this value is substituted with my model id

Relevant log output

2024-03-26 17:18:32.618959892  [2024-03-26 17:18:32] frigate.detectors.plugins.edgetpu_tfl INFO    : TPU found
2024-03-26 17:18:32.618962353  [2024-03-26 17:18:32] frigate.detectors.plugins.edgetpu_tfl ERROR   : No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.
2024-03-26 17:18:32.622346920  Process detector:coral:
2024-03-26 17:18:32.622352187  Traceback (most recent call last):
2024-03-26 17:18:32.622353481    File "/usr/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
2024-03-26 17:18:32.622354465      self.run()
2024-03-26 17:18:32.622355555    File "/usr/lib/python3.9/multiprocessing/process.py", line 108, in run
2024-03-26 17:18:32.622356528      self._target(*self._args, **self._kwargs)
2024-03-26 17:18:32.622357639    File "/opt/frigate/frigate/object_detection.py", line 98, in run_detector
2024-03-26 17:18:32.622358761      object_detector = LocalObjectDetector(detector_config=detector_config)
2024-03-26 17:18:32.622359798    File "/opt/frigate/frigate/object_detection.py", line 52, in __init__
2024-03-26 17:18:32.622360782      self.detect_api = create_detector(detector_config)
2024-03-26 17:18:32.622361907    File "/opt/frigate/frigate/detectors/__init__.py", line 24, in create_detector
2024-03-26 17:18:32.622362877      return api(detector_config)
2024-03-26 17:18:32.622364043    File "/opt/frigate/frigate/detectors/plugins/edgetpu_tfl.py", line 39, in __init__
2024-03-26 17:18:32.622365073      self.interpreter = Interpreter(
2024-03-26 17:18:32.622366248    File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 348, in __init__
2024-03-26 17:18:32.622367211      _interpreter_wrapper.CreateWrapperFromFile(
2024-03-26 17:18:32.622368294  ValueError: Could not open 'plus://2ac78675f78656ccccf********'. //hashed model id here

FFprobe output from your camera

Not relevant

Frigate stats

No response

Operating system

HassOS

Install method

HassOS Addon

Coral version

USB

Network connection

Wired

Camera make and model

Hikvision

Any other information that may be helpful

No response

[NickM-27]

you are running 0.12, this feature is available in 0.13

[ht2k05]

I have this exact same issue and am on 0.13....help

[ht2k05]

getting the following error...(error doesnt show when i use the CPU id for the model) coral detects fine otherwise.

2024-04-10 02:45:37.271209405 [2024-04-09 22:45:34] frigate.detectors.plugins.edgetpu_tfl INFO : Attempting to load TPU as usb
2024-04-10 02:45:37.273198660 Process detector:coral:
2024-04-10 02:45:37.273467660 [2024-04-09 22:45:37] frigate.detectors.plugins.edgetpu_tfl INFO : TPU found
2024-04-10 02:45:37.273620215 [2024-04-09 22:45:37] frigate.detectors.plugins.edgetpu_tfl ERROR : No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.
2024-04-10 02:45:37.274567213 Traceback (most recent call last):
2024-04-10 02:45:37.274625547 File "/usr/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
2024-04-10 02:45:37.274627547 self.run()
2024-04-10 02:45:37.274629139 File "/usr/lib/python3.9/multiprocessing/process.py", line 108, in run
2024-04-10 02:45:37.274633824 self._target(*self._args, **self._kwargs)
2024-04-10 02:45:37.274635935 File "/opt/frigate/frigate/object_detection.py", line 102, in run_detector
2024-04-10 02:45:37.274668917 object_detector = LocalObjectDetector(detector_config=detector_config)
2024-04-10 02:45:37.274670658 File "/opt/frigate/frigate/object_detection.py", line 53, in init
2024-04-10 02:45:37.274672343 self.detect_api = create_detector(detector_config)
2024-04-10 02:45:37.274673750 File "/opt/frigate/frigate/detectors/init.py", line 18, in create_detector
2024-04-10 02:45:37.274674824 return api(detector_config)
2024-04-10 02:45:37.274676306 File "/opt/frigate/frigate/detectors/plugins/edgetpu_tfl.py", line 43, in init
2024-04-10 02:45:37.274725787 self.interpreter = Interpreter(
2024-04-10 02:45:37.274728195 File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 348, in init
2024-04-10 02:45:37.274743769 _interpreter_wrapper.CreateWrapperFromFile(
2024-04-10 02:45:37.275093657 ValueError: Model provided has model identifier 'l ve', should be 'TFL3'
2024-04-10 02:45:37.275095564
2024-04-10 02:45:42.489462686 [INFO] Starting go2rtc healthcheck service...
2024-04-10 02:45:55.189092769 [2024-04-09 22:45:55] frigate.watchdog INFO : Detection appears to have stopped. Exiting Frigate...
s6-rc: info: service legacy-services: stopping
s6-rc: info: service legacy-services successfully stopped
s6-rc: info: service nginx: stopping
s6-rc: info: service go2rtc-healthcheck: stopping
2024-04-10 02:45:55.202229262 [INFO] The go2rtc-healthcheck service exited with code 256 (by signal 15)
s6-rc: info: service go2rtc-healthcheck successfully stopped
2024-04-10 02:45:55.272942256 [INFO] Service NGINX exited with code 0 (by signal 0)
s6-rc: info: service nginx successfully stopped
s6-rc: info: service nginx-log: stopping

[NickM-27]

What is your config

[ht2k05]

mqtt:
host: redacted
port: redacted
user: redacted
password: redacted
topic_prefix: redacted
stats_interval: 60

birdseye:
enabled: true
mode: continuous

detectors:
coral:
type: edgetpu
device: usb

model:
path: plus://TPUIDFROMPLUSHERE-redacted

ffmpeg:
hwaccel_args: preset-rpi-64-h264

record:
enabled: true
retain:
days: 3
mode: motion
events:
retain:
default: 3
mode: motion

snapshots:
enabled: true
retain:
default: 15

cameras:

cameras are all below this.

[ht2k05]

just to reiterate, coral and frigate work fine when i take out the custom model edgetpu model ID

cpu model ID works but my CPU load is crazy high...cannot get the edge tpu model ID to work..

[blakeblackshear]

Inside of your config folder, you should have a model_cache folder. Check the contents of the file with the edgetpu model id. If it is an XML error response, delete all files with this model id and try again. This can sometimes happen if the model fails to download properly.