Trigger a Smartthings or Alexa action when my dog is eating cat food

Firstly my dog hates Alex. I have a blink camera set up and when he goes to the cat food bowl an Alexa routine tells him to get away from the cat food. It is very effective but…1. There is a delay where the dog can eat more than half the food before the action executes. 2. The action executes when the cat approaches because the cat’s tail is triggering the action.

I’m hoping someone can help me with another option. I just need something maybe on the dog collar the when it comes in range of some other device it will trigger the action. Any ideas???

TIA.

Welcome to the SmartThings Community Kathy.
Do you have a SmartThings hub currently?
If not, there are some very nice people in the Home Assistant community that would love to help you.

I have smartthings and love it!

Cool. Me too.
I retract what I said about Home Assistant; that was a bit tongue in cheek.
I exclusively use Zigbee and Z-Wave devices (dipping my toe into Matter/Thread now) that are (or can be) supported by SmartThings.
I know there are people on this forum who have experience with Alexa routines triggered by SmartThings routines. Hopefully one of them will chip in.
In terms of speed, have you considered a Zigbee motion detector detecting your doggie? Of course motion detectors have a re-arm time; maybe a smart dog might figure this out.
Anybody else?