Title: Application of IEEE 802.15.4 for Home Network
Department Of Electrical Engineering
Project Intro: Applications of wireless sensor network has increased tremendously for the past years and still rising. The focus on sensor networks for home application has a main topic of low power consumption and efficient implementation of hardware and software for various applications. Research on different wireless protocols has also been applied. Applications as 802.11 Wireless Local Area Network (WLAN) are inappropriate with a redundant data rate and high power consumption. Bluetooth protocol was primarily introduced 1994 for a low data rate for compensation of cables for computers and mobile devices. The disadvantage of Bluetooth protocol is the limitation of number of nodes that can be connected simultaneously (1 master & 7 slaves) and the high level of power consumption. A new implementation of wireless sensor network IEEE 802.15.4 and Zigbee introduced in 2000 with a main topic of low data rate control and sensor applications in wireless networks. Zigbee is predicated on IEEE 802.15.4 technological standard for low data rate in the Industrial, Scientific and Medical (ISM) frequency band. Low data rate provided by IEEE 802.15.4, allow communication among devices with consideration to very low power consumption in use of battery supply. IEEE 802.15.4 devices are appropriate for home environment with a main topic of a low cost and low data rate.
Abstract: To implement a utility wireless sensor network, investigation of different wireless protocols has been performed. The protocols are Bluetooth, Wi-Fi, IEEE 802.15.4 and Zigbee. Consecutively literature studies have made it comprehensible to understand the function of the protocols that are suitable for development of wireless sensor networks. The importance of low cost, low power, reliable and high-quality properties for long distances are significant. IEEE 802.15.4 and Zigbee protocol are proper to implement as a wireless sensor network. To reduce the human efforts in the configuration of the system, a comfortable method is implemented to facilitate the procedure. The applied method is based on an automatic configuration of the system. The configuration and the decision taking are implemented in the software. The system is designed to avoid interference to other wireless networks with the possibilities of reconfiguration. A uniform hardware and software design with separate functions of the system decided by a subsequent command for configuration is preferable. This imposes an advantage that increases the flexible potential of the system when a uniform solution is implemented. To support the basic communication principles and control of the system, a buffer implementation has been introduced. The functionality of decision taking is distributed, configured by system commands from the host system. Detecting of system commands requires a properly operating buffer management. In consideration to the power consumption in reference to battery utilizations, the settings of RF-module and microcontroller have a powerful impact to reduce the power consumption. All possibilities of hibernates and avoidance of unnecessarily transmitting, should be deactivated to minimize the power consumption.
Keywords: Sensor Network, XBee, IEEE 802.15.4, Zigbee, Bluetooth, Wi-Fi.
You can also Subscribe to PROJECTSWORLDS by Email for more such projects and seminar.
