Authors: JOSIP ZIDAR, TOMISLAV MATIĆ, IVAN ALEKSI, ŽELJKO HOCENSKI, DRAGO ŽAGAR
Faculty: Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Smart Sticker is a device concept whose purpose is to monitor the conditions of storage and transport of products. After the production of a certain product, the buyer, distributor and seller have no information about the conditions of storage and distribution. After production, the manufacturer places the Smart Sticker on the product or the product pallet, as a result of which data recording begins. When the product arrives in the warehouse or the store, a person in the warehouse or a customer in the store can read the Smart Label using NFC technology. After scanning, all the recorded data about the conditions in which the product was located are displayed. The displayed data is used as an indicator of any undesirable conditions that occurred during the travel from production to consumer. In this way, the customer would be sure he is buying a correctly stored and distributed product.
Various conditions such as temperature, humidity, vibrations, and shocks can adversely affect products and damage them during the transport and storage of products. Inadequate temperature can lead to the thawing of frozen products or spoilage of perishable food products. High temperature leads to overheating and can cause deformations on the packaging or the surface of the product. Shocks and vibrations are common during transport and/or when handling goods in the supply chain. As a result, product malfunctions such as device malfunction, breakage or deformation may occur. The currently developed prototype was tested in real conditions of high (+80 °C) and low temperature (- 20 °C). The prototype was used to measure vibration levels in transport (car, truck). Shock detection was conducted, with the package traveling on the route Osijek – Dubrovnik. The ultra-low energy consumption of the device enables the use of a small-sized battery and ensures a long working life of the device. The sensors used are factory calibrated and provide adequate precision of the measured data.