19-02-2013, 04:55 PM
Remote Monitoring and Controlling System Based on ZigBee Networks
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Abstract
Thanks to the rapid development of information technology and the growth of the Internet
through high speed networks, network environments have even been changed from office
oriented environments based on business industries and public institutions to the
interconnection of digital electronics in home networks. Home network based applications
are very diverse and the remote monitoring and control areas have been studied. Recently,
ZigBee has become one of the most promising technologies for home networks. ZigBee is a
specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks. Moreover, owing to the rapid growth of mobile technology, highperformance
smartphones are widespread and in increasing cases are utilized as a terminal
device. In this paper, we propose the design and implementation of a remote monitoring and
controlling system using ZigBee networks. This system targets a home network. Web services
and a smartphone are used for the client system to monitor and control the home.
Introduction
Thanks to the rapid development of information technology and growth of the Internet
through high speed networks, network environments have even been changed from office
oriented environments based on business industries and public institutions to the
interconnection of digital electronics in the home networks. Home network based applications
are very diverse and the remote monitoring and control areas have been studied. Recently,
ZigBee has become one of the most promising technologies for home networks. ZigBee is a
specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks.
There have been various studies on ZigBee based home networks. To realize remote home
automation based on ZigBee, implementation issues of home gateway and device nodes are
proposed in [1]. It presents hardware platform consideration and software implementation for
each of them. Similarly, hardware design issues are discussed for various home devices such
as wireless communications transceiver modules base, USB expansion base and control
switches for electrical appliances in a room [2]. Also, an effective architecture for dynamic
integration of ad hoc ZigBee home network devices into OSGi (Open Service Gateway
Initiative)-based home gateways is discussed. An ad hoc ZigBee home network device is
represented by a device proxy service in the proposed architecture so that it can be
dynamically registered, discovered, accessed and unregistered just like a common OSGi
service [3]. [4] gives a way to construct ZigBee wireless sensor networks and implement
remote monitoring and control by a GSM module.
Background Technologies
IEEE 802.15.4
IEEE 802.15 is a working group for the standardization of WPAN (Wireless Personal Area
Network). IEEE 802.15.4 is one of the seven task groups which are included in it. The first
edition of the 802.15.4 standard was released in May 2003.
IEEE 802.15.4 specifies the physical layer (PHY) and media access control (MAC) for
low-rate WPAN. WPANs are used to convey information over relatively short distances. It
focuses on low-cost, low-speed ubiquitous communication between devices. Unlike wireless
local area networks (WLANs), connections effected via WPANs involve little or no
infrastructure. This feature allows small, power-efficient, inexpensive solutions to be
implemented for a wide range of devices. The basic framework conceives a 10-meter
communication range with a transfer rate of 250 kbit/s. Important features include real-time
suitability by reservation of guaranteed time slots, collision avoidance through CSMA/CA
and integrated support for secure communications. Devices also include power management
functions such as link quality and energy detection [6].
Several standardized and proprietary network layer protocols run over 802.15.4-based
networks, including IEEE 802.15.5, ZigBee, 6LoWPAN, Wireless HART, and ISA100.11a.
Potential application areas include the following: sensors, actuators, interactive toys, remote
control, industry networks, home automation and so on.
ZigBee
ZigBee is a standards-based technology that addresses the unique requirements of most
remote monitoring and control and sensory network applications. ZigBee builds upon the
physical layer and medium access control defined in IEEE 802.15.4 for low-rate WPANs.
The specification goes on to complete the standard by adding four main components: network
layer, application layer, ZigBee device objects (ZDOs) and manufacturer defined application
objects which allow for customization and favor total integration.
Home Network Technologies
A home network is a residential local area network (LAN) for communication between
digital devices typically deployed in the home, usually a small number of personal computers
and accessories, mobile computing devices, mobile phones, digital TVs, PDAs and so on. An
important function is the sharing of Internet access, often a broadband service provisioned by
fiber-to-the-home or via Cable Internet access, Digital Subscriber Line (DSL) or mobile
broadband by Internet service providers (ISPs). In a broader sense, it includes software and
services for integration and operation of information appliances in addition to wired or
wireless network devices.
Home networking technologies can be classified into two kinds: wired and wireless. The
telephone, power-line, Ethernet and IEEE 1394 exist as wired home network technologies. As
wireless home network technologies, wireless LAN, HomeRF, HyperLAN, Bluetooth, UWB
(Ultra Wide Band) and ZigBee are representative. Since wireless networking solutions based
on the spread of mobile devices have emerged they can be applied to home networks also.
Implementation Results
In this section we discuss implementation results of a real-time remote monitoring and
controlling system.
The server contains a web-cam and the monitoring and controlling programs are
implemented using Java. Web-based remote monitoring with video capture, data encoding
and RTP communication are implemented using JMF (Java Media Framework) which is a
multimedia extension API of Java. A client using web service can access the server after user
authentication.
Of the ZigBee networks, we use two Chipcon CC2420DB evaluation boards with CC2420s
(IEEE 802.15.4 radios) accompanying Z-Stack [8, 9, 10]. One is configured as a coordinator
and the other is configured as an end-device.
When the coordinator starts, it initializes all internal ports and waits for control commands
from the home server. If the home server sends a control command to the coordinator through
the serial communication, the coordinator receives the command and sends it directly to the
end-device through RF communication. The end device receives the control command from
the coordinator and controls the switch node.
Concluding Remarks
Recently, the home environment has seen a rapid introduction of networked digital
technology. This technology offers new and exciting opportunities to increase the
connectivity of devices within the home for the purpose of home automation. Moreover, with
the rapid expansion of the Internet, there is the added potential for the remote control and
monitoring of such networked devices.
ZigBee has become one of the most promising technologies for home networks. ZigBee is
a specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks. Moreover, owing to the rapid growth of mobile technology, highperformance
smartphones are widespread and in increasing cases they are being utilized as a
terminal device.
[attachment=51377]
Abstract
Thanks to the rapid development of information technology and the growth of the Internet
through high speed networks, network environments have even been changed from office
oriented environments based on business industries and public institutions to the
interconnection of digital electronics in home networks. Home network based applications
are very diverse and the remote monitoring and control areas have been studied. Recently,
ZigBee has become one of the most promising technologies for home networks. ZigBee is a
specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks. Moreover, owing to the rapid growth of mobile technology, highperformance
smartphones are widespread and in increasing cases are utilized as a terminal
device. In this paper, we propose the design and implementation of a remote monitoring and
controlling system using ZigBee networks. This system targets a home network. Web services
and a smartphone are used for the client system to monitor and control the home.
Introduction
Thanks to the rapid development of information technology and growth of the Internet
through high speed networks, network environments have even been changed from office
oriented environments based on business industries and public institutions to the
interconnection of digital electronics in the home networks. Home network based applications
are very diverse and the remote monitoring and control areas have been studied. Recently,
ZigBee has become one of the most promising technologies for home networks. ZigBee is a
specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks.
There have been various studies on ZigBee based home networks. To realize remote home
automation based on ZigBee, implementation issues of home gateway and device nodes are
proposed in [1]. It presents hardware platform consideration and software implementation for
each of them. Similarly, hardware design issues are discussed for various home devices such
as wireless communications transceiver modules base, USB expansion base and control
switches for electrical appliances in a room [2]. Also, an effective architecture for dynamic
integration of ad hoc ZigBee home network devices into OSGi (Open Service Gateway
Initiative)-based home gateways is discussed. An ad hoc ZigBee home network device is
represented by a device proxy service in the proposed architecture so that it can be
dynamically registered, discovered, accessed and unregistered just like a common OSGi
service [3]. [4] gives a way to construct ZigBee wireless sensor networks and implement
remote monitoring and control by a GSM module.
Background Technologies
IEEE 802.15.4
IEEE 802.15 is a working group for the standardization of WPAN (Wireless Personal Area
Network). IEEE 802.15.4 is one of the seven task groups which are included in it. The first
edition of the 802.15.4 standard was released in May 2003.
IEEE 802.15.4 specifies the physical layer (PHY) and media access control (MAC) for
low-rate WPAN. WPANs are used to convey information over relatively short distances. It
focuses on low-cost, low-speed ubiquitous communication between devices. Unlike wireless
local area networks (WLANs), connections effected via WPANs involve little or no
infrastructure. This feature allows small, power-efficient, inexpensive solutions to be
implemented for a wide range of devices. The basic framework conceives a 10-meter
communication range with a transfer rate of 250 kbit/s. Important features include real-time
suitability by reservation of guaranteed time slots, collision avoidance through CSMA/CA
and integrated support for secure communications. Devices also include power management
functions such as link quality and energy detection [6].
Several standardized and proprietary network layer protocols run over 802.15.4-based
networks, including IEEE 802.15.5, ZigBee, 6LoWPAN, Wireless HART, and ISA100.11a.
Potential application areas include the following: sensors, actuators, interactive toys, remote
control, industry networks, home automation and so on.
ZigBee
ZigBee is a standards-based technology that addresses the unique requirements of most
remote monitoring and control and sensory network applications. ZigBee builds upon the
physical layer and medium access control defined in IEEE 802.15.4 for low-rate WPANs.
The specification goes on to complete the standard by adding four main components: network
layer, application layer, ZigBee device objects (ZDOs) and manufacturer defined application
objects which allow for customization and favor total integration.
Home Network Technologies
A home network is a residential local area network (LAN) for communication between
digital devices typically deployed in the home, usually a small number of personal computers
and accessories, mobile computing devices, mobile phones, digital TVs, PDAs and so on. An
important function is the sharing of Internet access, often a broadband service provisioned by
fiber-to-the-home or via Cable Internet access, Digital Subscriber Line (DSL) or mobile
broadband by Internet service providers (ISPs). In a broader sense, it includes software and
services for integration and operation of information appliances in addition to wired or
wireless network devices.
Home networking technologies can be classified into two kinds: wired and wireless. The
telephone, power-line, Ethernet and IEEE 1394 exist as wired home network technologies. As
wireless home network technologies, wireless LAN, HomeRF, HyperLAN, Bluetooth, UWB
(Ultra Wide Band) and ZigBee are representative. Since wireless networking solutions based
on the spread of mobile devices have emerged they can be applied to home networks also.
Implementation Results
In this section we discuss implementation results of a real-time remote monitoring and
controlling system.
The server contains a web-cam and the monitoring and controlling programs are
implemented using Java. Web-based remote monitoring with video capture, data encoding
and RTP communication are implemented using JMF (Java Media Framework) which is a
multimedia extension API of Java. A client using web service can access the server after user
authentication.
Of the ZigBee networks, we use two Chipcon CC2420DB evaluation boards with CC2420s
(IEEE 802.15.4 radios) accompanying Z-Stack [8, 9, 10]. One is configured as a coordinator
and the other is configured as an end-device.
When the coordinator starts, it initializes all internal ports and waits for control commands
from the home server. If the home server sends a control command to the coordinator through
the serial communication, the coordinator receives the command and sends it directly to the
end-device through RF communication. The end device receives the control command from
the coordinator and controls the switch node.
Concluding Remarks
Recently, the home environment has seen a rapid introduction of networked digital
technology. This technology offers new and exciting opportunities to increase the
connectivity of devices within the home for the purpose of home automation. Moreover, with
the rapid expansion of the Internet, there is the added potential for the remote control and
monitoring of such networked devices.
ZigBee has become one of the most promising technologies for home networks. ZigBee is
a specification for a suite of networking, security and application software layers using small,
low-power, low data rate communication technology based on IEEE 802.15.4 standard for
personal area networks. Moreover, owing to the rapid growth of mobile technology, highperformance
smartphones are widespread and in increasing cases they are being utilized as a
terminal device.