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Wireless Home Automation Network - Maneesh - 10-04-2017 Wireless Home Automation Network Sreevas. S S6, Applied Electonics College of Engineering, Trivandrum [attachment=10240] Abstract Wireless home automation networks (WHAN) comprise of wireless embedded sensors and actuators that enable monitoring and control applications for home user comfort and efficient home management. Need: In recent years, the number of devices that need to be connected and controlled remotely in an industrial and home environment are several. In smart homes or businesses there is a need to control these devices remotely and power friendly manner. WHAN is the solution to these requirements. Gsm Based Home Automation: GSM (Global System for Mobile Communications: originally from Groupe Sp cial Mobile) is the world's most popular standard for mobile telephony systems .When you press a DTMF key in the telephone set keypad, a connection is made that generates a resultant signal of two tones at the same time. These two tones are taken from a row frequency and a column frequency. The resultant frequency signal is called Dual Tone Multiple Frequency . These tones are identical and unique. A DTMF signal is the algebraic sum of two different audio frequencies, and can be expressed as follows: f(t) = A0sin(2*_*fa*t) + B0sin(2*_*fb*t) + .. -> (1) Where fa and fb are two different audio frequencies with A and B as their peak amplitudes and f as the resultant DTMF signal. fa belongs to the low frequency group and fb belongs to the high frequency group. Each of the low and high frequency groups comprise four frequencies from the various keys present on the telephone keypad; two different frequencies, one from the high frequency group and another from the low frequency group are used to produce a DTMF signal to represent the pressed key. The amplitudes of the two sine waves should be such that (0.7 < (A/B) < 0.9)V > (2) The frequencies are chosen such that they are not the harmonics of each other. The frequencies associated with various keys on the keypad are shown in figure (A). When you send these DTMF signals to the telephone exchange through cables, the servers in the telephone exchange identifies these signals and makes the connection to the person you are calling. Figure (B): A Typical frequency DTMF signal Along with these DTMF generator in our telephone set provides a set of special purpose groups of tones, which is normally not used in our keypad. These tones are identified as A , B , C , D . These frequencies have the same column frequency but uses row frequencies given in the table in figure (A). These tones are used for communication signaling. Figure ©: The frequency table Due to its accuracy and uniqueness, these DTMF signals are used in controlling systems using telephones. By using some DTMF generating IC s (UM91214, UM91214, etc) we can generate DTMF tones without depending on the telephone set. Main Features: Light control. Remote control. Smart energy. Remote care. Security and safety. Technologies: Bluetooth Used in PANs. Range is 10m. ISM band at 2.4 GHz is employed. Supports only Star topology. Infrared (IR) LOS operation, limited range. ZigBee Supports Star, Mesh, and Tree topologies. Multihop communication with unlimited range. Radio Frequency (RF) 413 MHz or 315 MHz, Range 100m. Supports only Star topology. Conclusion: The much dreamt of concept of E-home can be realized through this project. Speech Controlled Interactive Wireless Home Automation can be made realistic. The immediate future will see a lot of rapid strides made in this area. Bibliography: 1. Baris Yuksekkaya, A. et.al., A GSM, Internet and Speech Controlled Wireless Interactive Home Automation System , IEE Transactions on Consumer Electronics, Vol. 52, No. 3, AUGUST2006 2. Yu-Ping Tsou, et.al., Building a Remote Supervisory Control Network System for Smart Home Applications , Proceedings of 2006 IEE International Conference on Systems, Man, and Cybernetics, October 8-11, 2006, Taipei, Taiwan 3. Mohd Adib B., et.al., Wireless Home Security and Automation System Utilizing ZigBee based Multi-hop Communication , Proceedings of IEE 2008 6th National Conference on Telecommunication Technologies and IEE 2008 2nd Malaysia Conference on Photonics, 26-27 August 2008, Putrajaya, Malaysia. Wireless Home Automation Network - rahul59 - 10-04-2017 to get information about the topic Home automation using mobile full report ,ppt and related topic refer the page link bellow http://seminarsprojects.net/Thread-home-automation-using-mobile-communication http://seminarsprojects.net/Thread-home-automation-using-mobile-communication?page=2 http://seminarsprojects.net/Thread-home-automation-project http://seminarsprojects.net/Thread-industrial-automation-using-cellphone http://seminarsprojects.net/Thread-wireless-home-automation-network |