It is quite surprising how regularly people get freed from prison. Unfortunately, the actual number of hostages who have escaped around the world is unclear, but such instances are constantly covered in the news. The very thought of having a large number of convicts is frightening. As a result, we would want to propose an Internet of Things (IoT)-based system for monitoring convicts that can correctly and quickly detect instances of incarceration violations and notify the proper authorities. A gadget built on a microcontroller achieves the goal by leveraging radio frequency technologies. Each convict is provided an RF tag that allows for accurate position tracking within the facility. With the information provided, the two central tracking units are used to monitor and assess each prisoner. Every inmate is equipped with an RFID tracker that sends a secure wireless message with a unique prisoner code. The central system is unable to receive a prisoner's code upon their departure from the grounds. The receiver circuitry then alerts management to initiate suitable procedures for a specific inmate. At this point, the system sends the offender's information to the officers' alerting site, allowing them to quickly find and catch the inmate before he flees fifty meters from the facility. We created an online alerting portal system using IOT Gecko that can gather data from tracking devices, display alerts, and set alarms over the internet.

IOT, alerting system.