TY  - JOUR
T1  - A Model for Automatic Control of Home Appliances using DTMF Technique
AU - Kennedy, O. Okokpujie AU - Modupe, Odusami AU - Imhade, P. Okokpujie AU - Abayomi-Alli, Olusola 
JO  - Research Journal of Applied Sciences
VL  - 12
IS  - 2
SP  - 266
EP  - 272
PY  - 2017
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2017.266.272
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2017.266.272
KW  - Automatic control
KW  -control of home appliances
KW  -Dual Tone Multiple Frequency (DTMF)
KW  -home automation
KW  -remote control
AB  - Electrical devices and appliances cause a lots of problem and havoc if they are not switched off when
they are not in use. This study developed a Dual Tone Multiple Frequency (DTMF) technology for the remote
control of home appliances. A Dual Tone Multiple Frequency (DTMF) decoder MT8870, a mobile phone, a
binary coded decimal decoder, a crystal pulse generator and other components were used for the model and
development of the system. The dual tone multiple frequency decoder (MT8870) receives and converts decimal
signals to binary. The binary signals are further processed and converted back to binary by the binary coded
decimal decoder. The processed signals are then sent to the relay for appropriate switching. Dedicated phone
digits send commands to devices/appliances by switching them on or off. The simulation was done using
MATLAB 7.0 using accuracy and convergence time as performance metrics. The simulation results showed
that the DTMF based home automation has high percentage of accuracy transmitting. The convergence time
result showed that signal transmitted took shorter time to converge. In conclusion, the developed model proves
to be efficient in controlling home devices/appliances remotely.
ER  -