WiBeD2: A communication aid for deaf and dumb

WiBeD2: As the name suggests it is a Wireless BEll for Deaf and Dumb. Generally bells are meant for calling the people in a house, but how can a deaf or a dumb respond to bells. A Deaf cannot hear to the bell and a dumb cannot respond to the calling bell. Therefore, we have brought forward a simple low cost feasible system to help the deaf and the dumb to respond effectively to the person knocking at the door. As the deaf cannot hear, we have recommended a device with vibrators attached to their body in the form of some wrist band or a watch. Similarly, for the dumb, we have developed a kind of bell with speakers which will playback some voice to the person standing at the door as an acknowledgement message. When the person presses the calling bell switch the vibrators on the hand of a deaf/dumb vibrates and s/he can also send an acknowledgment message to the person. The entire system is wireless and can work effectively within a radius of 50m i.e. the range of RF Transmitter.