We recently had a hair straightener get inadvertently left on for almost 24 hours. As can be seen in the attachment, it only spends about 12% of the time actually on and cycles on and off approximately 45 times per hour to maintain temperature. As far as I can tell, there’s no way to configure an al…

Seems like a good suggestion, but here are a couple questions. This alert seems to require realtime “watching” and calculation. The most complex custom alert today only requires a trigger and then a recheck some length of time later, or a detrigger when the device goes off again. A duty cycle check…

I would draw analogy to the existing alert system. One way the existing system might be implemented is that every time a device comes on, a timer is set for the defined amount of time in the future when the “on” alert should be triggered. If the device turns off before the timer finishes off, the ti…

So you are essentially suggesting that the duty cycle metric would be computed at every on transition/detection and then have some hysteresis if the criteria is exceeded, so the alert hangs out for a few minutes to prevent the potential continuous on/off toggling ?

Yes, but a hysteresis metric need not be too complicated and doesn’t need to query historical data. Every on and off event has a timestamp. When a device turns on, notate the time between now and the last time it turned off. Round to the nearest 10 seconds, no need to be too precise If you store r…

We don`t have a hair straightener but my family always forgets to turn off a toaster or my Breville espresso machine which uses a lot of energy to keep mugs warm. I use a GE smart outlets and programmed it in Hubitat to turn off after being on for 4 min for the toaster and 30 min for the espresso …

Coming at this from a different perspective, do you even need to determine duty cycle? If my hair straightener is 1200W and is on more than 8% of the time in an hour, then it will have used more than 96Wh in the past hour. I realize there are ramp-up times and all, but it would greatly simplify the…

While I would also like to see a feature like this implemented, this is how I handled the issue with things being left on… [image] On Certain Number of Times notification? Product Wishlist Not Sense related, but my wife had the same issue. I bought her this, and now it can…

If possible, I’d like to have Sense continue to alert me with some user-defined interval (for instance 15 minutes) if the duty cycle continues to be exceeded, because for the use cases I outlined, I want to do everything I can to avoid danger and/or running out of water. Ideally, smartphone vendors …

[image] colin: I’d be fine having the alert be based off a total amount of electricity usage. However, I believe that would be more CPU intensive as it would require continuously maintaining a trailing integral of the watt-hours consumed by a given device. I’m sure that could be done with the ex…

I came here to ask a very similar question. Our island home uses a cistern, not a well. One failure mode with the cistern is if the check valve between the cistern and the pump fails. When that happens, the pump will fill the pressure tank and shut off, but the failing check valve allows the wate…

Duty Cycle Alert Option

Product Wishlist

Edison517 February 2, 2021, 4:32pm 8

While I would also like to see a feature like this implemented, this is how I handled the issue with things being left on…

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Duty Cycle Alert Option

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