CryoGuard

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  Streamlit

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  Sensor Status

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  Logs and Trends

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  Compliance Pdf

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  Shipment Locked Status

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  Wokwi

Inspiration

Projects in accessibility, healthcare, and sustainability have always stuck with me. For my first hackathon project, I wanted to try solving something that mattered, even at a small scale. I landed on CryoGuard, a system for keeping temperature-sensitive medical cargo (blood, organs, vaccines) safe in transit.

What It Does

CryoGuard is a proof-of-concept cold-chain monitoring system built to answer one question: is this shipment still safe?

• Fail-safe multi-sensor voting flags unreliable readings
• Temperature, humidity, shock, and battery monitoring
• SAFE / WARNING / CRITICAL status at a glance
• Predictive risk analysis estimates remaining safe hours
• Route viability prediction
• Critical condition lock halts the shipment and requires human intervention
• Event logs and an auto-generated PDF compliance report

How I Built It

Built in Python, with Streamlit as the dashboard and Wokwi for hardware simulation. I kept the system modular (sensor voting, thresholds, safety evaluation, prediction, route logic, and reporting as separate pieces) and kept the predictive logic simple enough to fully explain.

Challenges I Ran Into

Wokwi threw plenty of unexpected issues, and some errors took real digging to understand. I had to scope down often, balancing what I wanted to build against what I could finish as a beginner. I used AI tools but made sure I understood everything I shipped.

Accomplishments I'm Proud Of

Shipping a system that reasons about safety instead of just displaying numbers: voting out bad sensors, estimating time remaining, and locking the shipment when needed. Getting all the modules working together felt like a real milestone for a first hackathon project.

What I Learned

I got back into Python and picked up Streamlit, Wokwi, dashboard design, and the basics of cold-chain logistics. More importantly, I learned to think about whether a feature would actually help someone, not just whether it worked.

What's Next for CryoGuard

Real sensor hardware instead of simulation, a predictive model validated against real cold-chain data, and hardening the fail-safe logic for edge cases.

Built With

• pandas
• python
• reportlab
• streamlit
• wokwi