HeatGuard

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  Morning screen: today's heat and humidity, with the dangerous hours in red.

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  Water tracker: just tap the bottle or glass you drank, no need to count milliliters.

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  Break alarm: when it gets too hot, the app tells workers to stop, rest in the shade and drink.

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  Evening summary: how much water you drank and how many breaks you took.

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  How a day with HeatGuard works: morning, work day, evening.

Inspiration

I live in Abu Dhabi and in summer it's SO hot. Every day I see construction workers, delivery guys and gardeners working outside in like 45 degrees and I always wondered how they know when it's too much. There's a rule where they can't work from 12:30 to 3pm in summer, but the heat doesn't just stop at 3pm.

What it does

HeatGuard is an app that helps outdoor workers stay safe in the heat. It does 3 things:

• In the morning it shows a chart with the hours colored green, orange or red, so you know when it's gonna be dangerous
• When it's too hot, a loud alarm tells you to stop, go in the shade and drink water
• You can track how much water you drink by just tapping a picture of your bottle

And it's in the workers' languages (Hindi, Urdu, Tagalog, Arabic...) because a lot of them don't speak English.

How I built it

This was an ideathon so I didn't code the app, I worked on the idea and the design. I did a lot of research on the heat rules in the UAE and on apps that already exist. I made the flowchart on Mermaid and I used Claude to help me make the screens and the slides.

Challenges I ran into

At first I wanted people to type how much water they drank, but then I realized bottles are all different sizes and nobody knows how much is in a glass. So I changed it to pictures you just tap. It's not perfect but it's enough to know if you're not drinking enough.

I also found a study that says heat apps can show a lower temperature than the real one, so I made HeatGuard warn people a bit earlier just in case.

And some stuff I found online was wrong, so I had to double check everything.

Accomplishments that I'm proud of

It's my first hackathon ever! I'm proud I picked a problem that's real where I live, and that I thought about people who usually get forgotten.

What I learned

I didn't know humidity made heat that dangerous (your sweat can't dry so your body can't cool down). I also learned how to check if a source is reliable and how to present an idea in a few minutes.

What's next for HeatGuard

I'd love to test it with a real team of workers, add more languages with their help, and maybe work with companies or the Ministry. One day it could even connect to real heat sensors on construction sites.

Built With

• claude
• google
• html
• mermaid
• vimeo