Voice Recognition Home Automation System (VRHAS)s

Home automation is currently getting widespread recognition due to the convenience it provides. Home automation may include centralized control of lighting, HVAC (heating, ventilation and air conditioning), appliances, and other systems, to provide improved convenience, comfort, energy efficiency and security. This research is focus on creating a voice recognition system as an aid to home automation. Reason for choosing voice is because it is easily being reproduced by human. Besides that, usage of voice gives a control system that can be effective and convenient to be used. The application of this system involve modifying the switching system from the traditional way which is physical contact with a switch to a safer way where the usage of voice to replace all the physical contact. This project involve a simple switching system that used the transistor along with relay to power the devices, a voice recognition system that consists of voice recognition chip HM2007 and the PIC18F8722 microcontroller. The HM2007 serves as the recognition chip that listens and interpret the command by the given input while the PIC18F8722 serve as the brain of the system that will coordinate the correct output with the input command given. This project able to recognize the command trained by the user and successfully to execute the correct output. This project is a small scale design which consists of 8 commands that used to control three different switches. The command is able to individually switch on and switch off each of the switch. Besides that, the command also able to switch on and off all the switch at the same time.