Smart Alarming System Using Embedded Controller, Zigbee Communication and Global System of Mobile (GSM)

This paper presents a smart alarming system applying embedded controllers, ZigBee communication, and GSM knowledge. The method allows users to wirelessly monitor their properties, such as companies and houses, through Short Service Message (SMS) alerts. The primary unit and its subunits are the two basic parts of the system. As the primary hub, the main unit is equipped with two microcontrollers, a motion sensor, a ZigBee module, and a GSM interface. For monitoring, sub-units covering a motion sensor, ZigBee module, and microcontroller can be placed in different locations. These sub-units use a Point-to-Multipoint system (PTMS) to wirelessly connect with the main unit. When a motion sensor in a monitored area detects movement, it sends an alarm and wirelessly communicates the address of the relevant room to the main unit. The user receives an SMS alert with the room's address as soon as the main unit, which is connected to GSM, goes off Additionally, one of the sub-units can be linked to a laptop within the same building, facilitating comprehensive room monitoring. This system offers users a flexible and efficient solution for remote premises monitoring.