Research And Development On The Home Security System Based On Wireless Sensor Network

With the continuous development of society and the rapid growth ofeconomy,people pay more and more attention on the smart home, in general, acomplete intelligent household system mainly includes intelligent household (central)control systems, home network system, home wiring system, home lighting systems,background music system, home security system, home environment control system,home theater and multimedia system.According to the survey, in the above eightsystems, people tend to be pay most attention on family security alarm subsystem inthe security system.As an important subsystem in smart home,Home security system’s character ofautomatic, timely, stable plays a particularly important role to people’s life andproperty security.To the need of low cost and low power consumption,compared withother short-range wireless communication technology,ZigBee technology hasobvious advantages in this field, and it can be easily embedded into a variety ofequipment,it has a strong extensibility.Therefore, on the basis of above, this articledesign a home security system based on wireless sensor network.Firstly, compared with the traditional family security system, security systemfunction is unitary, aiming at this situation, we join the functions of cintrolling theexisting electrical equipment in the home.From the perspective of cost saving, highreliability, the design chooses IT company in hardware CC2530chipsand SIM900communication module, this combination can do gogd in indoornetworking and remote connectivity;System design the software in the developmentof the IAR, on the basis of Z-Stack protocol Stack for each node innetwork, according to the user’s actual need,each node can join or quit thenetwork, then make use of the command control of AT to M900module,in the endcomplete the alarm message sent.Secondly,we develop the android interface,we can see the alarm information through the intuitive display interface, users can observe the concrete location,and thetime of the intrusion event happened;And the mobile phone interface join a series ofcontrol button, users can click on the button directly, the characteristics homeappliances can be control to complete the switch state, then the state of the electricalswitch will back to mobile phones, it is convenient to users to understand whether theoperations is successful.Finally we successfully implement the function of intrusion alarm and remotecontrol through the debugging of software and hardware.We test the complete thesystem, the test shows that the system stability is strong, alarm information is accurate,users can easily to control equipment at home.In this paper, the design of home security system based on wireless sensornetwork has features such as automatic network, flexible and efficient, each node canalways disconnect or join the network, the scale of the sensor network can be toincrease or decrease according to the actual need in family, the sensor node positioncan transform at will, it has less blind spots, compared with the average family alarmequipment,it also has the function of remote control, so it has a broad applicationprospects.