VOICE RECOGNITION BASED WIRELESS HOME AUTOMATION SYSTEM

Abstract

Home Automation industry is growing
rapidly; this is fuelled by the need to
provide supporting systems for the elderly
and the disabled, especially those who live
alone. Coupled with this, the world
population is confirmed to be getting older.
Home automation systems must comply
with the household standards and
convenience of usage. This paper details the
overall design of a wireless home
automation system (WHAS) which has
been built and implemented. The
automation centres on recognition of voice
commands and uses low-power RF ZigBee
wireless communication modules which are
relatively cheap. The home automation
system is intended to control all lights and
electrical appliances in a home or office
using voice commands. The system has
been tested and verified. The verification
tests included voice recognition response
test, indoor ZigBee communication test,
and the compression and decompression
tests of DPCM (Differential Pulse Code
Modulation) speech signals. The tests
involved a mix of 35 male and female
subjects with different English accents. 35
different voice commands were sent by
each person. Thus the test involved sending a total of 1225 commands and 79.8% of
these commands were recognised correctly.