Philippine E-Journals

MCU-Based Anti-Theft Displacement Sensors using GPS-WIFI Tracking System with Item Identification via Android Application

Carl Mathew L. Replan | Remmelt C. Tamisin | Jim Pearl P. Victoriano

 

Abstract:

This project designed a wireless anti-theft device with a GPS-WiFi tracking feature which can be monitored through an Android application. The proponents created a wireless displacement sensor with a swappable independent power source using lithium ion batteries with supporting boost converter, which allows any item chosen to be monitored without the need for plugging it in. It also eliminates false alarms with the use of a limit switch used as a trigger which is pressed on the surface of the item being monitored and is kept intact by neodymium magnets or double adhesive tape. Removing the displacement sensor from the item it is attached to triggers the limit switch, alarms the piezo buzzer then sends the notification to the Android device. The prototype combined GPS-WiFi tracking technologies to ensure consistent indoor-outdoor signals using a microcontroller with a built-in WiFi module and a GPS module with a built-in ceramic antenna. This research work relied on applied, analytical, and experimental methods for prototype testing. The proponents tested the prototype resulting in different statuses like Connected, Disconnected, No Update and Signal Error. It was tested near Letran - Calamba, within the Letran main lobby, McDonald's (Bucal Calamba branch) and Bernardo Village in Los Baños. The maps showed on the Android Application. Future studies can further develop the prototype’s design by improving battery integration with wireless charging, creating a better grip of the prototype for the monitored item, improving user interface, and by improving the consistency of the GPS signal using a more advanced module available in the market.