A ZigBee-based home automation system

In recent years, the home environment has seen a rapid introduction of network enabled 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 network enabled devices. However, the adoption of home automation systems has been slow. This paper identifies the reasons for this slow adoption and evaluates the potential of ZigBee for addressing these problems through the design and implementation of a flexible home automation architecture. A ZigBee based home automation system and Wi-Fi network are integrated through a common home gateway. The home gateway provides network interoperability, a simple and flexible user interface, and remote access to the system. A dedicated virtual home is implemented to cater for the system’s security and safety needs. To demonstrate the feasibility and effectiveness of the proposed system, four devices, a light switch, radiator valve, safety sensor and ZigBee remote control have been developed and evaluated with the home automation system

Voice Recognition Smart Home Automation Using ZIGBEE and Android

As seen in recent year’s home automation is gaining importance due to use of various wireless technologies. Home automation provides security and comfort mainly for old age people and physically handicap humans. This paper combines various technology for home automation such as voice controlled, Android, Bluetooth and ZIGBEE, which makes it more user friendly. The low cost Bluetooth technology follows IEEE 802.15.1 standard protocol which is open standard technology for implementation of short range wireless communication. Android is a Linux based core open source operating system mainly used in portable devices. ZIGBEE is an IEEE 802.15.4 standard device for applications that require low data rate, long battery life and secure networking

Obstacle avoidance routing scheme through optimal sink movement for home monitoring and mobile robotic consumer devices

In recent years, ZigBee has been proven to be an excellent solution to create scalable and flexible home automation networks. In a home automation network, consumer devices typically collect data from a home monitoring environment and then transmit the data to an end user through multi-hop communication without the need for any human intervention. However, due to the presence of typical obstacles in a home environment, error-free reception may not be possible, particularly for power constrained devices. A mobile sink based data transmission scheme can be one solution but obstacles create significant complexities for the sink movement path determination process. Therefore, an obstacle avoidance data routing scheme is of vital importance to the design of an efficient home automation system. This paper presents a mobile sink based obstacle avoidance routing scheme for a home monitoring system. The mobile sink collects data by traversing through the obstacle avoidance path. Through ZigBee based hardware implementation and verification, the proposed scheme successfully transmits data through the obstacle avoidance path to improve network performance in terms of life span, energy consumption and reliability. The application of this work can be applied to a wide range of intelligent pervasive consumer products and services including robotic vacuum cleaners and personal security robots1

Intelligent house for elderly people

Tato diplomová práce se zabývá systémem automatizace domácnosti umožňujícím ovládání domácích spotřebičů prostřednictvím běžné televize. Systém využívá standardu X10 a bezdrátové technologie ZigBee. Řídicí software staví na OS GNU/Linux a systému domácího kina MythTV. V rámci této diplomové práce byla vyvinuta aplikace zprostředkující komunikaci mezi MythTV a hardwarem. Modulární koncept postavený na dynamicky zaváděných modulech dělá tuto aplikaci snadno rozšiřitelnou a použitelnou i mimo předkládaný automatizační systém. Za účelem testování a demonstrace funkčnosti byl dále navržen bezdrátový teploměr a převodník VGA na SCART.The thesis describes author's contribution to a home automation system allowing users to control and monitor home appliances via an ordinary television. The system takes advantage of the X10 power line signalling standard and the ZigBee wireless technology. The control software is built on top of GNU/Linux OS and MythTV home theatre platform. The work focuses on a development of an application allowing MythTV to interface the hardware. A flexible modular concept based on dynamically loaded plug-ins is introduced. Since the application is self-sustainable and easily extensible, having a potential to manage several automation tasks on its own, its usage is not limited to the proposed home automation system. Finally, in order to verify a functionality of the system, a wireless thermometer and a VGA to SCART converter are designed.

Novel Approach for User-Friendly Home Automation System on One Touch

The home Automation has been showing from last 10 to 15 years its far reaching and crucial importance in domestic and industrial world. The paper represents a research and development of an embedded project of Home Automation. There are many "already existing” home automation system which are also based on the "Central Unit" which controls everything but are quite expensive and less user-friendly. The main purpose of this project is to reduce the cost of the system providing a better interface which user-friendly as well. The basic idea of this the system is to have a server as the central controller which has multiple clients and is connected to the mobile device which is at remote location which sends the query to access the home devices and is also connected to circuitry present at the home using wireless connection(Zigbee Interface). In the case the system consist of the replicas of the home which is to be automated. It also has an asset of a Real time System DOI: 10.17762/ijritcc2321-8169.15014

Adaptive thermal comfort computation with Zigbee wireless sensor networks

Title from PDF of title page, viewed on March 25, 2014Thesis advisor: Cory BeardVitaIncludes bibliographical references (pages 70-72)Thesis (M. S.)--Dept. of Computer Science & Electrical Engineering. University of Missouri--Kansas City, 2013The rapid development of wireless communications, scalable technology enabling large scale mass production of System-On-Chip boards, and low cost and low power sensors have made wireless sensor networks easy accessible and usable. Zigbee (802.15.4) operated wireless sensor networks have been commonly used in home automation, building automation, personal health care and fitness, consumer electronics, telecom services etc. In our thesis we investigate Zigbee's application in computing thermal comfort in indoor environments as an extension of home automation systems. Maintenance of thermal comfort consumes a large majority of energy costs. In our home automation system we interfaced a Honeywell based humidity sensor. The Zigbee system consists of a central unit called a coordinator which acts as a control unit. The coordinator is responsible for configuring the network and the start of the network. The end-devices which also act as routers are interfaced with a humidity sensor, an inbuilt temperature sensor, light sensor and accelerometer. The end-device periodically reports data like temperature, humidity, light and accelerometer readings. From these readings, a thermal comfort index is calculated by an index called Predicted Mean Vote. Thermal comfort is dependent on variation of 6 factors like clothing, Metabolism, air temperature, air velocity, mean radiant temperature and relative humidity. A series of simulations are performed with MATLAB to illustrate variation of PMV with the above mentioned 6 factors. Finally prediction and opinion is given about cost variation with energy usage variation. Also the thesis gives advice on achieving thermal comfort by taking into consideration different factors and also to change those factors to achieve thermal comfort at expense of the costAbstract -- List of illustrations -- List of tables -- Acknowledgements -- Introduction -- Background -- Thermal comfort index -- Zigbee wireless sensor networks -- Zigbee thermal comfort sensor network -- Simulation and results -- Thermal comfort and cost -- Conclusion and future work -- Reference lis

Throughput and Power Consumption Comparisons of Zigbee-based and ISM-based Implementations of WSAN

Wireless sensor and actuator networks have expanding applications which requires better throughput, power efficiency and cost effectiveness. This study intends to contribute to the growing pool of knowledge on WSAN especially in the design for novel applications such as image or video over WSANs, and solar energy and RF energy harvesting for the WSAN nodes. Two basic scalable wireless sensor and actuator networks were implemented and characterized in terms of throughput and power consumption. The two WSANs are the Zigbee-based WSAN which is based on the IEEE 802.15.4 protocol, and the ISM-based Zigbee which makes use of the industrial, scientific and medical (ISM) radio bands. The star topology was used for both WSAN implementations. The throughput is quantified with varied factors including distance from node to node, obstructions in between nodes and cochannel interference. As distance and obstructions between nodes are increased, the throughput for both networks decreases with varying degrees. Co-channel interference is also considered. The ISM-based WSAN network is weak in dealing with co-channel interference and error rate as compared to the Zigbee-based WSAN, thus requiring it to have a better data encryption. Power consumption is generally larger for the ISM-based WSAN as compared to its Zigbee-based counterpart. However, the ISM-based nodes consume the same power even up to a few hundreds of meters distance and are thus practical for covering large distances. Therefore, the Zigbee-based WSAN system is more appropriate for closed environment, such as in room automation and home automation applications where distance from node to node is relatively shorter. The ISMbased WSAN prototype, on the other hand, can be developed further for applications in larger areas such as deployment in fields and cities, since transmission is not generally limited by distance and obstructions