General Overview: -We are going to design a ?Smart Device? , which detects and informs the user or installer ; when the placed items in the refrigerator are about to end and tells which item is about to expire. All this is informed to the user by mode of IoT
IoT Based smart refrigerator
General Overview:
-We are going to design a “Smart Device” , which detects and informs the user or installer ; when the placed items in the refrigerator are about to end and tells which item is about to expire. All this is informed to the user by mode of IoT
( Internet of things ).
Problem statement:
- There is already work done by an application which provides the manual entry of item names and dates. Even though these applications save the details of the food in a database and give notifications, it takes a really long time to manually enter each item into the application and may be inconvenient and also there are some system designed which tells about the shortage of items by means of some weight sensors.
Our role:
-Our role in existing application is; we will use image processing technique to optimize the overall performance and detecting sensors which are less costly compared to weight sensors.
Key objectives of our FYP are;

Benefits in a nutshell:
We used Raspberry pi microcontroller as our main processing unit. The moment when placed items are about to end , the load cell’s interruption would occur and give ping to controller.
The controller is such programmed ; it would gather the information and act according.
For expiry date detection same Raspberry pi is interlinked with the camera ; camera will read the expiry date and ping to controller using backend program.
All this information is sent to internet database which is the part of IoT.
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Raspberry Pi | Equipment | 1 | 12000 | 12000 |
| Raspberry Pi cam | Equipment | 1 | 5000 | 5000 |
| LCD | Equipment | 1 | 1000 | 1000 |
| 16 GB Memory Card | Equipment | 1 | 1000 | 1000 |
| Push Button | Equipment | 30 | 30 | 900 |
| Load Cell | Equipment | 8 | 500 | 4000 |
| Amplifier Module | Equipment | 8 | 150 | 1200 |
| Resistors | Equipment | 50 | 2 | 100 |
| Connectors | Equipment | 300 | 5 | 1500 |
| Switches | Equipment | 10 | 10 | 100 |
| PCB | Equipment | 10 | 500 | 5000 |
| Solder wire + jumper wires | Equipment | 12 | 210 | 2520 |
| Ferric Chloride | Equipment | 10 | 150 | 1500 |
| Wire connectors | Equipment | 20 | 5 | 100 |
| PCB Printing Paper | Miscellaneous | 50 | 20 | 1000 |
| PCB Printing | Miscellaneous | 50 | 20 | 1000 |
| Transparent Plastic-coated sheet | Miscellaneous | 6 | 500 | 3000 |
| Project Representation (casing and tools) | Miscellaneous | 1 | 4000 | 4000 |
| Safety Instruments | Equipment | 10 | 100 | 1000 |
| Total in (Rs) | 45920 |
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