MATEC Web of Conferences 34 , 0 4 0 1 0 (2015)
DOI: 10.1051/ m atec conf/ 201 5 3 4 0 4 010
C Owned by the authors, published by EDP Sciences, 2015
The Embedded Smart Home Control System Based on GPRS and Zigbee
Wanli Zhang
1
2
1,a
1
, Guoxin Li , Wei Gao
2
Department of Electrical Information and Engineering, Changchun University, China
Department of Information Engineering, Changchun University of Finance and Economics, China
Abstract. With the development of the Internet of Things and mobile Internet, smart home appeared a new
opportunity, the development of wireless communication, ad-hoc network technique, high reliable connection, large
scale networking, repair itself as a new developing direction of smart home. This paper discussed hardware and
software design of the embedded smart home control system based on GPRS transmission network and Zigbee
technology. This paper also expounds the composition structure and working principle of the system. Through the
Zigbee technology to realize the ad-hoc network among the main controller and Zigbee terminal nodes, realizes the
branch node information acquisition and command transmission. Through the GPRS network mobile client can
realize information collection and remote monitoring of household facilities.
1 Introduction
Smart home is a house as a platform, the use of
comprehensive
wiring
technology,
network
communication technology, security technology,
automatic control technology, audio and video
technology to integrate the life related household
facilities, to build efficient management system of
residential facilities and the family schedule things, and
improve home security, convenience, comfort, and
realize environmental protection and energy saving living
environment. The emergence of the Internet of things has
injected new vitality to the development of smart home,
brought new features. Wireless communications, ad-hoc
network technique, high reliable connection, large scale
networking, repair itself as a new developing direction of
smart home. Zigbee is a recently developed a kind of
short-range wireless communication technology, because
the Zigbee has close range, low power consumption, low
data rate and low cost etc., make it particularly suitable
for family Internet of things. In this paper, based on the
Zigbee technology, build the home wireless local area
network (LAN), through the master controller for
information acquisition and command transmission node
equipment.[1] To meet the demand of mobile client
remote wireless monitoring, this paper combines Zigbee
technology and GPRS technology, namely the family
combined external and internal wireless network mobile
Internet, using the technology mature and stable GPRS
network has realized the remote wireless control of smart
home system, improve the security of smart home system
and control of convenience.
a
2 The overall system design
The embedded smart home control system based on
GPRS and Zigbee is mainly composed of GPRS wireless
network, main controller, Zigbee wireless network of
three parts. The main controller can realize the function
of the gateway, also connect GPRS wireless network and
Zigbee wireless network, the system block diagram is
shown in Figure 1:
Figure 1. The system block diagram
Zigbee wireless network realize family facilities
information collection, management and control. Due to
family node is less, so the Zigbee wireless network to
take star network topology, including Zigbee coordinator
and several Zigbee terminal nodes.[2] Each terminal node
corresponding to a kind of household facilities or sensors,
Corresponding author: wanlizhang@126.com
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits XQUHVWULFWHGXVH
distribution, and reproduction in any medium, provided the original work is properly cited.
Article available at http://www.matec-conferences.org or http://dx.doi.org/10.1051/matecconf/20153404010
MATEC Web of Conferences
realize the control of facilities and information
acquisition. Data information is exchanged between
Zigbee coordinator and main controller, and main
controller send queries or control command to the end
nodes by Zigbee coordinator, according to monitoring
and controlling each household node. Using the masterslave control mode, convenient and free to join or remove
the terminal equipment. The user mobile phone terminal
exchange information with system through the GPRS
network. GPRS module will receive the information is
passed to the main controller, the main controller to
decrypt information, perform user request, perform
monitoring and controlling task.
3 The hardware design
3.1 Selecting main controller
In order to improve the function of the system, to
reduce the cost of the system, main controller select
STC12C5A60S2 microcontroller. The running speed of
STC12C5A60S2 single-chip computer is 8 ~ 12 times
than the standard of 51 kernel single-chip computer;
There are 8 road 10 bit AD; With SPI interface; Have 1k
bytes of internal extension RAM; And a serial interface
more than standard of 51 kernel single-chip
microcomputer; Add the two timers, PWM function; A
watchdog timer. In connection with the Zigbee module
microcontroller through the SPI interface. SIM900A via a
serial port connected to the microcontroller, through
MAX232 achieve level transformation. Single chip
microcomputer minimum system is shown in Figure 2:
TXD
RXD
11
10
P10
P11
P12
P13
SS
MOSI
MISO
SCLK
1
2
3
4
5
6
7
8
+5V
S1
SW-PB
C3
+
30uf
R2
9
1k
R1
200
29
14
15
TXD
RXD
P10
P11
P12
P13
P14
P15
P16
P17
RESET
PSEN
P00
P01
P02
P03
P04
P05
P06
P07
P20
P21
P22
P23
P24
P25
P26
P27
T0
ALE/P
T1
RD
31
R11
19
18
+5V
2.0K
EA/VP
WR
X1
X2
IN T0
IN T1
STC12C5A60S2
39
38
37
36
35
34
33
32
21
22
23
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25
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28
U2
P00
P01
P02
P03
P04
P05
P06
P07
9
RXD 12
10
TXD 11
3
C4
1uf
P24
P25
P26
C5
1uf
+5V
C6
1uf
1
2
16
R-OUT2 RR-IN2
R-OUT1 RR-IN1
T-IN2
T-IN1
CAP 1-
RT-OU T2
RT-OU T1
CAP 2-
CAP 1+ CAP 2+
CAP +
CAP-
VCC
GND
1
6
2
7
3
8
4
9
5
8
13
7
14
5
C7
1uf
4
6
15
MAX232
30
17
16
12
13
U3
S1
SW-PB
S1
R20
VCC
P24
P25
P26
P00
P01
P02
P03
P04
P05
P06
P07
10K
SW-PB
30pF
C1
S1
XTAL
11.0596MHz
SW-PB
S1
30pF
C2
DB9
C8
CAPACITOR
SW-PB
VCC
1
2
3
4
5
6
7
8
9
10
11
12
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14
15
16
VSS
VCC
V0
RS
R/W
E
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
BLA
BLK
LVTTL serial ports, and hardware flow control, support 5
v ~ 24 v ultra wide scope of work, make its can be very
convenient to connect with the main controller, which
provide users mobile phone with voice, SMS and GPRS
data transmission, and other functions. In this system
ATK-SIM900A connect to the main controller through
RS232 serial port.
3.3 The design of the Zigbee coordinator
This design chooses CC2530 as Zigbee network
master control chip. TI company CC2530 chip, which is
used in the manufacturing of IEEE802.15.4 and Zigbee or
RF4CE, provide a real SOC solutions. [3]It can use very
low cost to form a powerful network node. CC2530
realizes the Zigbee protocol stacks, internal also
integrates enhanced 8051 CPU. Peripheral circuit is rich,
including the commonly used general I/O mouth, SPI
interface, A/D conversion, serial port and so on.
3.4 Zigbee node controller design
CC2530 can not only as the Zigbee network master
control chip, can constitute a Zigbee node controller.
Because CC2530 periphery circuit is rich, fully meet the
needs of the furniture control facilities. [4]As a result, the
node controller takes 2530 as the core, plus some sensor,
relay, and drive circuit. Circuit will be different due to the
facilities.
4 The software design
This system software design part mainly includes the
main controller software design, Zigbee coordinator
software design and Zigbee terminal nodes software
design. GPRS module is mainly responsible for short
message transceiver, and through a serial port sent to the
main controller. [5]The processing of short messages will
be completed in the main controller. Main controller
using the AT command set send various commands to the
GPRS module. Main controller uses the SPI interface for
data exchange between Zigbee.
4.1 Main controller software design
Main controller is mainly responsible for GPRS
module initialization, key processing, data acquisition
and display. [6]When the alarm information appears,
send short message to the user or alarm center through
GPRS module. Short message is read and processed
through interrupt. The main program flow chart and the
interrupt program flow chart are shown in Figure 3:
1602
Figure 2. Single chip microcomputer minimum system
3.2 GPRS module
This system adopts the ATK-SIM900A-V12 module.
The module is ALIENTEK launched a high-performance
industrial GSM/GPRS module. ATK-SIM900A module
has onboard SIMCOM company industrial-grade dualband GSM/GPRS module, and work on the doublefrequency: 900/1800 MHz, can realize voice, SMS, data
and transmission of fax information on low-power. ATKSIM900A module supports RS232 serial port and
4.2 The coordinator software design
The coordinator role is largely responsible for the
entire Zigbee network create, manage, and sensor data
forwarding. On the electrical coordinator will scan all
wireless channel, choose a free channel to create a
network. [7]Distribute network address to collection
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ICMME 2015
nodes which apply to join the network, and through a
binding table to maintain communication relationship
with all acquisition nodes. And the received data is sent
to the main controller. The coordinator flow chart is
shown in Figure 4:
But no matter which control facilities, its working
process is the same. Receiving coordinator of command,
explaining the command execution, then the acquisition
of data or the results will be sent to the coordinator.
[8]Zigbee terminal node program flow chart is shown in
Figure 5:
Figure 5. The Zigbee terminal node program flow chart
5 To summarize
This paper studies the embedded smart home control
system based on GPRS and Zigbee. Zigbee is a low rate
wireless communication technology of short distance.
Main advantage in low power consumption, low cost, low
latency and network capacity is big, and adopts wireless
ad-hoc network method, provided great convenience in
adding or removing for household facilities, avoiding the
cumbersome wiring. With the popularity of smart phones,
real-time dynamic understanding of household facilities,
through a mobile operator to remote control of household
facilities, not only improves the security of household,
but also has brought great convenience to people life.
Figure 3. The main program flow chart
REFERENCES
1.
2.
3.
Figure 4. The coordinator program flow chart
4.
4.3 Zigbee terminal node software design
Different Zigbee terminal nodes control different
household facilities, so software design will be different.
5.
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Al-Ali A R, Imran Zualkernan, Fa-di Aloul. A
mobile GPRS-Sensors array for air pollution
monitoring. IEEE Sensors Journal, 10(10): 16661670. ( 2010)
Jun D, Kang J, Kim J, et al. A body sensor network
platform with two-level communications. IEEE
International Symposium on Consumer Electronics
TX Irving, (2007)
Kwon J W, Park Y M, Koo S J, et al. Design of air
pollution monitoring system using ZigBee networks
for ubiquitous-city. International Conference
Convergence (2007)
Chung W, Yang C H. Remote monitoring system
with wireless sensors module for room environment.
Sense Actuators B, 113( 1) : 35-42(2009)
Wen-Tsai Sung; Chia-Cheng, Hsu.Intelligent
environment monitoring system based on Innovative
MATEC Web of Conferences
6.
7.
8.
Integration Technology via Programmable System
On
Chip
platform
and ZigBee network.IET
Communications, 7(16):1789-1801(2013)
Byun, Jinsung; Jeon, Boungju; Noh, Junyoung; Kim,
Youngil; Park, Sehyun.An intelligent self-adjusting
sensor for smart home services based on ZigBee
communications. IEEE Transactions on Consumer
Electronics, 58 (3):794-802(2012)
Han, Dae-Man; Lim, Jae-Hyun.Design and
implementation of smart home energy management
systems based on zigbee.IEEE Transactions on
Consumer Electronics, 56 ( 3):1417-1425(2010)
Han, Dae-man; Lim, Jae-hyun.Smart home energy
management system using IEEE 802.15.4 and
zigbee.IEEE Transactions on Consumer Electronics,
56 ( 3): 1403-1410(2010)
04010-p.4