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msgtn / catbot

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Q: KWh for running this? #1

Open Haya-Sixt opened 2 months ago

Haya-Sixt commented 2 months ago

Hi Michael. I read in XDA about your latest project. May I ask you a question, please.

If it's not much trouble, I would like to know the total KWh (power) used by the camera + Pi Zero + Pi5 ?

(No need for the "robot". Although it's cool 😎).

Nice job. Thank you for sharing.

msgtn commented 2 months ago

Thank you for the message!

According to Jeff Geerling, the Pi Zero uses 0.4-0.7W. According to Tom's Hardware , the Pi 5 uses 2.7W at idle.

This project could be reduced to a single Pi 4 that is similar in power consumption to the 5, so long as it can run a small MobileNet model.

Haya-Sixt commented 2 months ago

Thank you for the message!

According to Jeff Geerling, the Pi Zero uses 0.4-0.7W. According to Tom's Hardware , the Pi 5 uses 2.7W at idle.

This project could be reduced to a single Pi 4 that is similar in power consumption to the 5, so long as it can run a small MobileNet model.

Thanks, but that’s not quite what I was looking for. I’m interested in building an AI vision detection system using a Raspberry Pi. However, I’ve found that the power usage is significant, and it might be better to use cloud services instead.

I was wondering if you could measure the power usage of a system with a live camera analyzing an image every second. Not in an idle state, but under heavy-duty 24/6 operation. I previously tried something with low-quality shots (benefits the power usage), but it didn’t meet my needs.

Anyway, I appreciate your help. Your work is inspiring.

msgtn commented 2 months ago

I see, I didn't measure the energy consumption when it was deployed and do not have a power meter. I did adjust the inference interval from 30 seconds to 2 minutes if a cat was detected to reduce computation slightly.