Then, I started a practice review on shelf-life-related projects and phone album projects. Practice review was conducted from two directions.
Expiration Date Reminder
# Project 1
The first project is a project to help blind people check the product shelf life. It is easy for ordinary people to check the shelf life of food, but it is difficult for blind people to complete the inspection of the shelf life alone. This project can help visually impaired users to check the shelf life of products through handheld smartphones. Through voice prompts, users are guided to point the camera at the location of the barcode. After that, the camera scans the barcode to get the product's shelf life (Peng et al., 2012).
# Project 2
The second project is the design of a food preservation label. Some sellers maliciously modify the production date and shelf life labels of foods in an attempt to deceive consumers and obtain more benefits. This brings great risks to the health of consumers. This designed label can monitor the chemical composition of the food. As the food approaches the expiration date, the colour of the label gradually darkens. When the food expires, the barcode information on the label has been covered, and the barcode will become invalid. In this way, consumers will not be deceived (TO-GENKYO, 2008).
# Project 3
The third project is an expired product reminder system based on cloud storage. When a user purchases a product in a supermarket, the cashier scans the product, and the system obtains the product's shelf life and uploads it to the cloud. The link to the cloud system is printed on the shopping receipt in the form of a QR code. The user scans the QR code with the mobile phone and downloads the shelf life of the product to the mobile phone application. The application processes the expiration date information and associates the information with Google Calendar and Google Home smart speakers. The user can ask about the expiration status of the product through the smart speaker. When the product is about to expire, the system will send a message notification to remind the user (Mohammed & Tareq, 2020).
////
Conclusion
The shelf life reminder projects are usually done by entering the shelf life of food or cosmetics through user’s own record. And it will remind users when it is about to expire.
Комментарии