Abstract
As technology becomes more advanced and modernized; more features are added to the existing system for the purpose of satisfying the increasing security needs of the people. Deploying wireless technologies for security and control in home offers attractive benefits along with user friendly interface. In this paper we present a smart security system comprises of Zigbee, GSM, Sensors and Smartphone for Security monitoring and control, when the user is at remote premises. Three sensors namely P IR, vibration and door sensor are installed at windows and doors. Whenever there is a security breach the sensors sends the signal to the Pic microcontroller. The Max 232 converter provides serial interface between the microcontroller and the zigbee. The Zigbee end device then transmits the signal to the Zigbee coordinator. The ZC at the control console communicates with MCU using max 232 converters. MCU would in turn access and control the GSM module via AT commands and automatically sends SMS to the owner's mobile phone informing him about the security breach. On receiving the SMS, user can make a video call using Skype account; Smartphone installed at home will feed us with a live video. On viewing the video the user can know whether an intruder has entered or not. Then accordingly faint gas valve and door lock can be controlled by the user. Thus whenever there is an intrusion, our system lets the user to monitor and control his premises from any part of the world.
Highlights
A Security system is considered to be best only if it offers protection and monitoring that guard against a number of threats, protecting homes against the elements as well as break-in and home invasions
INTERFACE EM357 UART Max 232 Zigbee RF Communication Max 232 RS232 GSM Communication. That it is all set for the communication between mobile phone and the MCU, in order to control the mobile phone through its ports, we used AT Commands, provided by the vendor companies
MCU is programmed for the system and is the heart of our project
Summary
A Security system is considered to be best only if it offers protection and monitoring that guard against a number of threats, protecting homes against the elements as well as break-in and home invasions. From the sub-controller all communications are sent to the primary controller using wireless communications It is desirable for each home device to have a dedicated Bluetooth module. Due to the fiscal expense of Bluetooth technology, a single module is shared amongst several devices This architecture reduces the amount of physical wiring required and the intrusiveness of the installation, through the use of wireless technology. The system presented in [5] is an internet-based intelligent system for home power management aiming to reduce energy consumption. This system uses internet cloud as a home gateway having the same limitations as described earlier. This system controls all home appliances through zigbee-infrared combination and zigbee power adapter
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