Motion Detector

in_a_days

Well… so much for that theory lol. I just got the ENOMEM error from Motion Detector.

danielis

I had the same issue.
For me was the solution to increase the capture interval time from 100ms to 1000ms.
With the default value of 100ms the overall systemload is to high and one of the two electron processes will use after some time around 85% of the memory. At that value the system slows down extremely and the memory swap process will take all cpu ressources while trying to free up physical memory.
And then anything can happen … (white screen, unresponsive, ENOMEM exceptions, …)

Go to motiondetector.js and search for this code part:

DiffCamEngine.init(
{
video: video,
motionCanvas: canvas,

Add the following line to change the default capture interval time of 100ms to 1000ms:

DiffCamEngine.init(
{
video: video,
captureIntervalTime: 1000,
motionCanvas: canvas,

Observe the two electron processes and they will not reach memory values higher than 30%.

jdahli1

@danielis Fingers crossed, this appears to be working! The mirror has turned on and off a dozen times now with no processor or RAM issues.

trividar

@danielis woooow its working now since one hour!! thank you!!!

in_a_days

Same here. Great work and many thanks @danielis!

slametps

Is this module work along with MMM-Facial-Recognition using the same camera?

danielis

Not working here. Only either one or the other.
But paviro said he will include a motion detection to the facial recognition module at some time.
I will try to do it also. Will report if I have success

oscarkindberg

Hi!

I’m trying to get this to work, have a USB cam attached to the RPI3 and installed the .js.
But when I add the code:

{
module: ’motiondetector’,
config:
}
}

Am I missing something? Because it only give me errors… :(

(new to this)

in_a_days

@oscarkindberg Try this instead:

            {
                    module: 'motiondetector',
                    config: {
                            timeout: 300000 // time in milliseconds for to switch off the display after last movement is detected.
                    }
            },

This is set for a 5 minute delay. Modify the timeout value if you want a longer or shorter delay before your screen turns off.

oscarkindberg

@in_a_days Hit! Works now, BUT next issue.
After 5-6 min the screens goes white, can’t find anything in the code that would cause that.