03-05-2012, 05:26 PM
A Low Cost GSM/GPRS Based Wireless Home Security System
[attachment=21208]
INTRODUCTION
THERE is a growing interest in intelligent home network as a
way to offer a comfortable, convenient and safe environment
for occupants [1]. In order to enhance the occupants’
convenience and safety, home security system is indispensable
in the field of intelligent home network. The requirements of a
home security system include low cost, low power
consumption, easy installation and rapid response to alarm
incidents.
THE HOME SECURITY SYSTEM
The general structure of the home security system is shown
in Fig. 1. The system includes two parts: wireless security
sensor nodes and a GSM/GPRS gateway. There are three kinds
of sensor nodes in this system: door security nodes, infrared
security nodes and fire alarm nodes. The GSM/GPRS module
is the interface between the gateway and the GSM/GPRS
network.
WIRELESS SECURITY SENSOR NODES
A. The General Structure of the Sensor Nodes
The general diagram of wireless security sensor nodes is
shown in Fig. 6. Every sensor node has a wireless transceiver
module and a microprocessor. The microprocessor receives
and analyses the sensors’ signals to detect the state of node.
[attachment=21208]
INTRODUCTION
THERE is a growing interest in intelligent home network as a
way to offer a comfortable, convenient and safe environment
for occupants [1]. In order to enhance the occupants’
convenience and safety, home security system is indispensable
in the field of intelligent home network. The requirements of a
home security system include low cost, low power
consumption, easy installation and rapid response to alarm
incidents.
THE HOME SECURITY SYSTEM
The general structure of the home security system is shown
in Fig. 1. The system includes two parts: wireless security
sensor nodes and a GSM/GPRS gateway. There are three kinds
of sensor nodes in this system: door security nodes, infrared
security nodes and fire alarm nodes. The GSM/GPRS module
is the interface between the gateway and the GSM/GPRS
network.
WIRELESS SECURITY SENSOR NODES
A. The General Structure of the Sensor Nodes
The general diagram of wireless security sensor nodes is
shown in Fig. 6. Every sensor node has a wireless transceiver
module and a microprocessor. The microprocessor receives
and analyses the sensors’ signals to detect the state of node.