Wireless voice-controlled multi-functional secure ehome

Automation Technologies are on a rise today as their use has reduced the efforts of humans manifold. The concept of automation has its roots today from industrial to consumer grade applications. Smart Home Automation is one such concept evolved from a broader category of Building Automation. The advancement of many wireless technologies today like Bluetooth, Wi-Fi, RF, Zigbee, WiMAX, Zwave, etc paved way for the developers to explore a variety of alternatives to design a smart home system. Although there are various wireless technologies to choose from, the performance of the system is determined by the interplay of networked sensors and actuators. This paper proposes a voice-controlled smart home (eHome) with multi-functions using Radio Frequency as the wireless choice. The proposed system is secured with a user's voice-password. The speaker dependent feature of this system makes it tightly secured. The voice-commands are recognised by a dedicated hardware module and the recognised data is sent wirelessly through a radio-frequency (RF) transmitter attached to a Arduino microcontroller board. RF receiver on the receiver unit reads the data from the transmitter and a Raspberry Pi attached to the receiver decodes the commands spoken by the user and controls the home appliances. Additionally the proposed eHome system is capable of sending the sensor data over the internet to the cloud for monitoring purposes. The proposed system is economical, modular and robust. This kind of system is particularly useful for senior citizens, physically disabled and handicapped individuals.