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Abstract

Nowadays, Wireless Monitoring for home security is among the cutting-edge researches in the field of International Intelligent Building. To implement real-time surveillance of the home security, the intelligent remote monitoring system was developed for home security based on ZigBee technology and GSM / GPRS network. The system can send abnormal images and warning messages through MMS and SMS, receive remote instruction, and remote monitor household appliances. Meanwhile, the introduction of a variety of sensors and the enhancement of system’s reliability guaranteed that the intelligent remote monitoring system can be responsible for home security.The hardware and software design and system performance are expounded in details. A number of surveillance devices in wireless network were connected. The experimental result shows that the system can attain remote surveillance of intelligent home safety with high availability and reliability.
Research of Intelligent Home Security Surveillance System Based on ZigBee
Jun Hou, Chengdong Wu, Zhongjia Yuan, Jiyuan Tan, Qiaoqiao Wang, Yun Zhou
College of Information Science & Engineering,
Northeastern University, Shenyang, Liaoning, 110004, China
xiaohuihoujun@163.com
wuchengdong@ise.neu.edu.cn
Abstract
Nowadays, Wireless Monitoring for home security
is among the cutting-edge researches in the field of
International Intelligent Building. To implement
real-time surveillance of the home security, the
intelligent remote monitoring system was developed
for home security based on ZigBee technology and
GSM / GPRS network. The system can send abnormal
images and warning messages through MMS and
SMS, receive remote instruction, and remote monitor
household appliances. Meanwhile, the introduction of
a variety of sensors and the enhancement of system’s
reliability guaranteed that the intelligent remote
monitoring system can be responsible for home
security.The hardware and software design and
system performance are expounded in details. A
number of surveillance devices in wireless network
were connected. The experimental result shows that
the system can attain remote surveillance of
intelligent home safety with high availability and
reliability.
1. Introduction
Intelligent home, also known as the smart
residential home, is moving towards the wireless
remote control, multi-media control, and high-speed
data transmission. The key technology of intelligent
home is compatible to household controllers and it
can also meet the transmission requirements through
home networking [1~3]. At present, lots of integrated
transport network is based on comprehensive wiring
technology [4], limiting the system to special places,
and higher cost. Currently, researches on the wireless
intelligent home security surveillance system is
becoming a hotspot due to its flexibility and
convenience.
At present, the application of intelligent home
wireless communication technologies mainly include:
IrDA infrared technology, Bluetooth and ZigBee
technology, and so on [5] [6]. IrDA is a short distance
for the half-duplex point-to-point communication.
Besides, it’s inconvenient and of high error rate,
which make IrDA not applicable to the family
network communication. Bluetooth technology is
limited by network capacity and it costs much. So
Bluetooth technology is not suitable for the home
network with a large number of nodes. ZigBee
technology has the moderate transmission range and
larger network capacity [7~9]. Here ZigBee technology
is developed in the monitoring system.
2. System Architecture
Modular Design is throughout the system. System
is built on the embedded system, and it can monitor
the important position through the CMOS camera.
Home state SMS and images MMS are sent to
specialized mobile phones. Besides, household
appliances can be remotely controlled by SMS.
ZigBee module connects household appliances, the
system motherboard with smoke, temperature, gas
sensors, forming a wireless networking.
The system motherboard core controller is
S3C44B0X-32 microcontroller and mainly
responsible for dealing with the data. Through MMS
modules and ZigBee module it can send information
and instructions. And Expand access plate to smoke,
infrared, gas and other domestic security state sensor.
International Symposium on Intelligent Information Technology Application Workshops
978-0-7695-3505-0/08 $25.00 © 2008 IEEE
DOI 10.1109/IITA.Workshops.2008.223
554
MMS module makes the system controller send the
family security status information to mobile phone
users. Users send and receive text messages of
instruction; ZigBee module is responsible for the
system motherboard with the expansion of household
appliances between the board and cross-linking of
data. System structure is shown in Figure 1.
3. System hardware design
3.1. System Controller
The system uses 32-bit RISC processor
S3C44B0X, with rich feature sets and peripherals,
including: 8 KB Cache, internal SRAM, LCD
controller, 2-channel UART, 4-channel DMA, PWM
functions with the five-channel timer, and so on. The
processor performance in all aspects of the system
can meet the needs. And compared with other similar
products, its price is more suitable.
3.2. MMS module design
MMS module, built-in MMS protocol, is the GSM
/ GPRS module integrating SMS and MMS. It uses
AT commands to control module through the RS232
interfaces. It has 600 K internal integration of
flash storage space, which makes it possible to
upload several pictures at the same while sending
MMS .
3.3. ZigBee Transceiver Device
The system uses a chip CC2430 ZigBee wireless
communication module. CC2430 ZigBee integrated
radio frequency (RF) front end, memory and
microcontroller [10].
CC2430 integrated with IEEE802.15.4 standard of
the 2.4 GHz RF transceiver, support CSMA / CA
features, the digital RSSI / LQI support and a
powerful DMA function, a battery monitoring and
temperature-sensing feature, with a strong and
flexible Development tools.
4. System Software Design
The whole system software is modular in design,
and can be concretely divided into three parts:
ZigBee wireless transceiver, MMS and SMS
transceiver, and image acquisition and processing.
4.1. Detection of Abnormal Status
The system can image the way through, outsider
invasion, fire and other indoor anomalies
automatically determine. Its advanced intelligence
primarily reflected in the following two areas. Firstly,
system could adapt to the background environment
changes through self-learning so that it can be
available in different environment. Secondly, for the
critical state, the software will automatically start
tracking monitor. More accurately monitoring can be
achieved, with more pictures are taken. Based on the
difference in background and the difference between
frames, the system uses a combination of static and
dynamic threshold. The main objectives of the testing
process, including image pretreatment, quantify
motion detection function (or small target tracking
detection), unusual situation and determine treatment.
When the system receives the new images sent by
cameras, first step is preprocessing and de-noising.
We can get the motion of body that can be quantified
or binary image of unusual objects region. Then the
system can analyze and judge the abnormal state.
System uses two types of abnormal function
quantified, based on the overall situation bitmap
handling and sampling detection processing
individually. Then, according to quantified abnormal
function of specific indicators, the system processes
the follow-up operation. For the police entered the
abnormal process, send alarm signals, sent MMS
CMOS Camera
Mobile phone
MMS module
GSM network
Expand Board
Smoke Senso
r
Infrared Sensor
Fig1.Intelligent Home Security Surveillance System
Household A
pp
liances
Gas Sensor
555
messages and store the video; abnormal tracking For
access to critical, critical abnormal start tracking
procedures, otherwise the replacement of the
background and wait for the judgment obtained under
a control image.
4.2. The Transceiver of MMS and SMS
MMS module can achieve SMS and MMS
function, through the AT commands controlling. First
module is to carry out initial configuration, such as
access points set up, IP settings, set up MMS
communication mode, set up server address.
XMODEM agreement is the beginning of
receiving documents issued "NAK" bytes. The
documents can be sent to the receipt of the signal sent
the data frame, in order to start a normal
communication process by two sides. Based on the
agreement Xmodem, uploading pictures of the
process is shown in Figure 2.
4.3. The Application of Zigbee Wireless
Network
Wireless communications software system
designed mainly include abnormal alarm signal
transmission and reception, ARM processor and
ZigBee module as well as the ZigBee module data
transferred with the controller.
According to the network, the level of ZigBee
modules will be set to three operating modes.
Mode 1: Connected with the system motherboard.
ZigBee modules receive others information and send
the control command given by the system board to
other ZigBee modules. This model is the core hub of
the motherboard and wireless communications
equipment.
Mode 2: ZigBee module,connected with
household appliances through the relay, is placed in
receiving state. When receiving the control command
from other ZigBee modules, the ZigBee module
controls electronics to make the appropriate action.
Fig2. Xmodem agreement to send the file process
Mode 3: The sensors connected with the relay,
placed sent state. When ZigBee module receives the
alarm signal to the sensor, the alarm signal will be
sent to other ZigBee module.
Module model can be set to switch codes.
Different models of the module are responsible for all
floors between the transmission of data and
instruction, to make the family constitute a security
LAN.
5. System Testing and Experimental Data
Analysis
The system uses the moving target detection
algorithm to achieve the targets of the surveillance
image processing and abnormal judgment.
Accounting for 7.5 ‰ background of the small target
the system can identify. The effective elimination of
the system for environmental changes in light, change
the background small goals gradual movement
caused by factors, such as system misjudgment.
Figure 3 is the use of the system hardware and
software for the intrusion detection and testing
experimental picture effect.
Transfer the first i-frame
Send EOT
NA
K
ACK?
AC
K
?
End
Start Xmodem
Y
i++
Y
Y
N
Y
The
L
ast?
N
N
60s?
N
Y
N
556
Fig3. Intrusion Detection to Results
The results show that, without obstruction in the
transmission distance less than 60 m, the transmission
of data packet loss rate is zero. The Test Data with
No Obstruction is shown in Table 1. It can fully meet
the normal home environment for the communication
needs, with a low power; therefore it is very suitable
for family use. If there are two cement walls between
two ZigBee modules in 30 m distance, packet loss
rate is only 1 percent. And if there is one cement wall,
the rate is zero, which can completely meet the
requirement of system design.
Table1. The Test Data with No Obstruction
Transmission
distancem Error Rate Receive power
dBm
10 0% -57
20 0% -66
30 0% -68
40 0% -69
50 0% -72
60 0% -72
6. CONCLUSION
This paper presents the design and completion of a
ZigBee based smart home security monitoring system,
respectively, from the system, hardware design,
software design, experimental data analysis and other
aspects of the ZigBee technology in the application of
the system. ZigBee technology will be applied in the
intelligent home to achieve a rapid rate, low-cost,
low-power wireless communication network.
Through connecting the traditional sensor alarm
system and image monitoring system, a new type of
smart security system is formed. Users can use the
phone or PC to receive MMS information. According
to the need, users can set the mobile phone to achieve
a flexible and convenient home security monitoring.
Acknowledgement:
It is a project supported by the Ministry of
Construction Fund for China’s National Natural
Science Foundation of China(No.60874103) and the
Ministry of Education - Students innovative
experiment scheme (070118).
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... Inparticular, utilities see potential in better analyzing and managing energy loads[7,12,13,15]. Furthermore, application scenarios extend to solutions for comfort[27], safety and security[18], and care of the elderly[23]. Utilities see huge potential in smart home technology to better balance electrical loads within their supply grids[5,25]. ...
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