speed-cam.py reboots RaspberryPi 3 B+

[will-code-for-pizza]

Hi,

on a fresh install of speed-cam with OpenCV 4.4.0 on a RaspberryPi 3 B+, launching "speed-cam.py" results in a reboot of RaspberryPi.

speed-cam.log is emtpy, but I was able to determine, that it happened after the OpenCV windows were drawn.

Do you know this issue ?

Regards Will

[pageauc]

I have used opencv 4 without issue but not 4.4.0. Does problem occur without drawing opencv windows? Also are you running watch-app.sh since there is a reboot option for it if it finds speed-camera not running. Should not be the case. Try running speed camera in terminal session without config.py gui_window_on= False and verbose = True.

Watch log entries and let me know if there is a error or last command run Claude ...

On Sat, Aug 1, 2020 at 6:06 AM Will Code notifications@github.com wrote:

Hi,

on a fresh install of speed-cam with OpenCV 4.4.0 on a RaspberryPi 3 B+, launching "speed-cam.py" results in a reboot of RaspberryPi.

speed-cam.log is emtpy, but I was able to determine, that it happened after the OpenCV windows were drawn.

Do you know this issue ?

Regards Will

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/pageauc/speed-camera/issues/58, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABNPKZBRT7MWAJVCMYRURRTR6PSJFANCNFSM4PRTQSPA .

-- See my YouTube Channel at http://www.youtube.com/user/pageaucp

[will-code-for-pizza]

Hi Claude, I was able to isolate the problem.

It's NOT related to OpenCV 3/4 (I am currently running OpenCV 3.4.2 for testing)

but to the options

show_thresh_on
show_crop_on

If I set one or both options to 'True', my Raspi crashes and reboots.

Leaving both options to 'False' it seems to be stable now and I was able to monitor the gui_window via ssh X11 forwarding.

Unfortunately there are no log entries after a crash. It seems, that Raspi did write too slow while a crash is initiated. If I get more informations, I will let you know.

Thanks so far. Regards Will

[will-code-for-pizza]

I was wrong...

The two mentioned options only speed up the crash. Setting these options to 'False', my Raspi takes about ~ 30 seconds more to crash.

Here is the log from console:

` $ ./speed-cam.py speed-cam.py 10.04 written by Claude Pageau Motion Track Largest Moving Object and Calculate Speed per Calibration.

Loading Wait ... 2020-08-02 11:53:10 INFO Pi Camera Module is Enabled and Connected supported=1 detected=1 2020-08-02 11:53:13 INFO Initializing Pi Camera ....

Note: To Send Full Output to File Use command python -u ./speed-cam.py | tee -a log.txt Set log_data_to_file=True to Send speed_Data to CSV File speed-cam.log

Debug Messages .. verbose=True display_fps=True calibrate=True show_out_range=True Plugins ......... pluginEnable=False pluginName=picam240 Calibration ..... cal_obj_px_L2R=80 px cal_obj_mm_L2R=4700 mm speed_conv_L2R=0.21150 cal_obj_px_R2L=85 px cal_obj_mm_R2L=4700 mm speed_conv_R2L=0.19906 (Change Settings in /home/pi/speed-camera/config.py) Logging ......... Log_data_to_CSV=False log_filename=speed-cam.csv (CSV format) loggingToFile=False logFilePath=speed-cam.log SQLITE3 DB_PATH=/home/pi/speed-camera/data/speed_cam.db DB_TABLE=speed Speed Trigger ... Log only if max_speed_over > 0 kph and track_counter >= 5 consecutive motion events Exclude Events .. If x_diff_min < 1 or x_diff_max > 20 px If y_upper < 60 or y_lower > 180 px or x_left < 40 or x_right > 280 px If max_speed_over < 0 kph If event_timeout > 0.30 seconds Start New Track track_timeout=0.00 sec wait after Track Ends (avoid retrack of same object) Speed Photo ..... Size=960x720 px image_bigger=3.0 rotation=0 VFlip=True HFlip=True image_path=media/images image_Prefix=speed- image_font_size=12 px high image_text_bottom=True Motion Settings . Size=320x240 px px_to_kph_L2R=0.211500 px_to_kph_R2L=0.199059 speed_units=kph CAM_LOCATION= None OpenCV Settings . MIN_AREA=100 sq-px BLUR_SIZE=10 THRESHOLD_SENSITIVITY=20 CIRCLE_SIZE=5 px WINDOW_BIGGER=1 gui_window_on=True (Display OpenCV Status Windows on GUI Desktop) CAMERA_FRAMERATE=20 fps video stream speed Sub-Directories . imageSubDirMaxHours=0 (0=off) imageSubDirMaxFiles=1000 (0=off) imageRecentDir=media/recent imageRecentMax=100 (0=off) Disk Space ..... Disabled - spaceTimerHrs=0 Manage Target Free Disk Space. Delete Oldest jpg Files spaceTimerHrs=0 (0=Off) Target spaceFreeMB=500 (min=100 MB)

2020-08-02 11:53:15 INFO isSQLite3 Success: File is sqlite3 Format /home/pi/speed-camera/data/speed_cam.db 2020-08-02 11:53:15 INFO db_check Success: sqlite3 Connected to DB /home/pi/speed-camera/data/speed_cam.db 2020-08-02 11:53:15 INFO speed_camera sqlite3 DB is Open /home/pi/speed-camera/data/speed_cam.db 2020-08-02 11:53:15 INFO speed_notify Plugin Disabled per pluginEnable=False 2020-08-02 11:53:15 INFO speed_notify Logging to Console per Variable verbose=True 2020-08-02 11:53:15 INFO speed_notify Press lower case q on OpenCV GUI Window to Quit program 2020-08-02 11:53:15 INFO speed_notify or ctrl-c in this terminal session to Quit 2020-08-02 11:53:15 WARNING speed_notify IMPORTANT: Camera Is In Calibration Mode .... 2020-08-02 11:53:15 INFO speed_notify Begin Motion Tracking ..... client_loop: send disconnect: Broken pipe `

Regards

[will-code-for-pizza]

It seems to be an issue ith motion tracking:

2020-08-02 12:14:21 INFO speed_notify Begin Motion Tracking ..... 2020-08-02 12:14:48 INFO speed_camera Reset- event_timer 26.83>0.30 sec Exceeded 2020-08-02 12:14:48 INFO speed_camera New - 0/5 xy(46,0) Start New Track --> Crash

[will-code-for-pizza]

Testing my SD-card with 'agnostics' tool shows

` Raspberry Pi Diagnostics - version (unknown) Sun Aug 2 12:45:56 2020

Test : SD Card Speed Test Run 1 prepare-file;0;0;10556;20 seq-write;0;0;14160;27 rand-4k-write;0;0;855;213 rand-4k-read;3534;883;0;0 Sequential write speed 14160 KB/sec (target 10000) - PASS Random write speed 213 IOPS (target 500) - FAIL Random read speed 883 IOPS (target 1500) - FAIL Run 2 prepare-file;0;0;10609;20 seq-write;0;0;12089;23 rand-4k-write;0;0;767;191 rand-4k-read;3742;935;0;0 Sequential write speed 12089 KB/sec (target 10000) - PASS Random write speed 191 IOPS (target 500) - FAIL Random read speed 935 IOPS (target 1500) - FAIL Run 3 prepare-file;0;0;11487;22 seq-write;0;0;12845;25 rand-4k-write;0;0;865;216 rand-4k-read;3829;957;0;0 Sequential write speed 12845 KB/sec (target 10000) - PASS Random write speed 216 IOPS (target 500) - FAIL Random read speed 957 IOPS (target 1500) - FAIL Test FAIL ` Could probably depend on my SD Card, which is an "Intenso Micro SD HC I" Class 10 32 GB

[will-code-for-pizza]

For further investigation I would like you to collect some SD card performance tests for me on your hardware:

With 'hdparm': ` $ sudo hdparm -t /dev/mmcblk0 /dev/mmcblk0: Timing buffered disk reads: 62 MB in 3.07 seconds = 20.21 MB/sec

$ sudo hdparm -T /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 1366 MB in 2.00 seconds = 683.40 MB/sec `

With 'dd': ` $ dd if=/dev/zero of=/tmp/test bs=1048576 count=500 500+0 Datensätze ein 500+0 Datensätze aus 524288000 bytes (524 MB, 500 MiB) copied, 28,6949 s, 18,3 MB/s

pi@speedcam:~ $ mv /tmp/test ~/

pi@speedcam:~ $ dd if=/home/pi/test of=/dev/null bs=1048576 500+0 Datensätze ein 500+0 Datensätze aus 524288000 bytes (524 MB, 500 MiB) copied, 0,681278 s, 770 MB/s ` Many thanks, Claude.

[pageauc]

There are a few bare exceptions in the code that will block python trackback. The camera code runs in a thread and broken pipe indicates communications with camera thread was lost.

Does the problem occur under python 2 and/or 3. The default is to run under python env Can you manually start speed-cam.py from ssh session under python 2 and also try with python3 eg

python2 ./speed-cam.py

also

python3 ./speed-cam.py

also send a copy of your config.py

How did you install opencv 4.4.0 ?

Will try to replicate the problem. I think communication with camera thread is failing after it is initialized

Claude ...

On Sun, Aug 2, 2020 at 6:15 AM Will Code notifications@github.com wrote:

It seems to be an issue ith motion tracking:

2020-08-02 12:14:21 INFO speed_notify Begin Motion Tracking ..... 2020-08-02 12:14:48 INFO speed_camera Reset- event_timer 26.83>0.30 sec Exceeded 2020-08-02 12:14:48 INFO speed_camera New - 0/5 xy(46,0) Start New Track --> Crash

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/pageauc/speed-camera/issues/58#issuecomment-667655084, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABNPKZDFDVWY2NASNKD3DM3R6U4FXANCNFSM4PRTQSPA .

-- See my YouTube Channel at http://www.youtube.com/user/pageaucp

[will-code-for-pizza]

Hi Claude,

How did you install opencv 4.4.0 ?

I used https://github.com/pageauc/opencv3-setup and changed the version to 4.4.0 in cv3-install-menu.conf.

Probably it is an undervoltage issue. I am using an 5V = 1A power supply. Now I changed to 5V = 2,5A and https://pastebin.com/VYT2NA06 runs stable for serveral minutes.

[will-code-for-pizza]

Seems to be solved by using a better power supply.