The problem Supreme - Food Warehouse Management solves

• Every single year, 67 million tons of food is wasted in India!
• 194,400,000 : 194.4 Million People are under-nourished in India, every year!

This is incredibly unfortunate as food is one of the integral needs of man.
How can we address this by using the power of tech?

Where does food wastage occur?
Warehouse and the Supply Chain

• Warehouses are the interface between the field and the plates of food.
• Warehouses are one of the major node in the supply chain where wastage occurs.
• Due to improper management of the supply chain, wastage occurs.
• Due to unpredictable conditions, food gets wasted.

Our innovative solution consists of two major technologies :

• An Ethereum based warehouse supply chain management
  -> All transcations are stored on the Ethereum blockchain
  -> Records can be viewed by all parties involved, ensuring non-repdiation and transparency
  -> An innovative, responsive WebApp is built in React, so that it can be used in any device.

• A Machine Learning / Image Processing based : Expiry Prediction, Fire Detection, & Open-Ripening
  -> An Ethylene Predictor model is used to monitor the ethylene levels in the warehouse. Too much ethylene can over-ripen perishable goods, which lead to spoilage.
  -> Expiry Prediction model uses real-time factors to detect when perishables get spoiled.
  -> Fire Detection uses CCTV cameras to detect potential fires in advance, and ensures goods don't get destroyed.

Features - Why our solution is awesome!

• Blockchain -> All warehouse records are stored on the blockchain
• Immutable -> The records cannot be modified and can be viewed by anyone, ensuring transparency
• Automation -> Our model automates and prevents over-ripening
• Expiry Prediction -> Our model predicts the expiry time of perishables in real-time.
• Fire Prediction -> Real time-fire detection based on image processing
• Safety -> Warehouse goods are protected from danger

Challenges we ran into

Since we were relatively new to the Ethereum blockchain, we ran into some challenges

• Since a Warehouse Management solution requires a lot of parameters, we ran into the stack too deep error multiple times. We rectified this error by passing some params as an array to the contract in Solidity.
• Making the ML Models work in real-time and interact with the Node-RED endpoints was slightly hard, and we are made it real-time after a hard struggle.
• Since there are many drastic differences between different versions of Solidity, we had to go through tons of documentation to make it work properly.
• We had to tune the Ethylene prediction model a lot by taking in factors like :
  Temperature (Farenheit)
  Humidity (relative humidity - %)
  Ice (0/1)
  Water Sprinkled (0/1)
  Carbon Dioxide Levels (ppm)
  Oxygen Levels (ppm) in order and more to attain perfection and good accuracy.
• Due to lack of Ether, we couldn't test the web app in the Ethereum mainchain.