Google Doorbell Events - Same person does not generate second notification.

[Frankie999]

I've noticed with my Gen 2 wired doorbell, if I wander up to it, I will get an event notification usually within 5-10 seconds once I'm standing right in front of it (wish it was quicker). HOWEVER. If I go away and come back in say one minute (or 5 minutes), I do NOT get another notification. But if I go away for an hour or so and try again, then I get a notification.

So what is the timeout that the software is using to NOT generate a second event? I have "Familiar Face Detection" turned off.

I think if the same person comes walking back up to the camera within 5 minutes, shouldn't we get a second event?

Anyone have any info on exactly HOW this is supposed to work????

[MplsCustomer]

@Frankie999 

Google Nest's cameras and doorbells have some sort of recovery time, during which they will not send a second notification. It varies for each device. A couple of years ago, a Google Nest Community Specialist posted a chart of these recovery times, but it was then deleted shortly thereafter.

I've never found any documentation on this.

[Frankie999]

After some testing, I can tell you that for this DB, it's 10 minutes. I tried 5 minutes, no alert. Another 5, no alert. Full 10 minutes, alert. Seems like if it sees the same person within 10 minutes, no alert.

Would sure be nice to adjust that if wanted.

I find it odd that the same person can keep coming back over and over within 5 minute windows and you only get 1 alert.

[EmersonB]

Hello folks,

@Frankie999, thanks for reaching out here in the Community. Google Nest attempts to send the right number of alerts at the right times, your Nest Camera will trigger a short cooldown period each time a notification is sent. While the duration of the cooldown period varies by alert type (e.g. person, sound, motion, etc.) the behaviour remains the same.

Once an event begins, an alert is sent and the cooldown period begins. Until the cooldown period expires without any new activity of that type, no new alerts of that type are sent.

If notifications aren't sent because of a concurrent, higher priority alert, customers aren't notified until the cooldown for that event expires, and a higher priority event is no longer detected.

While Nest strives to send you notifications only when your Nest Camera senses important activity, false positives may occur as a natural outcome of using algorithms to process video. These algorithms learn and improve over time, limiting the number of notifications you’ll receive. 

I appreciate the help, MplsCustomer.

Best,

Emerson