%0 Journal Article
%T Obstacle Avoidance Gloves for the Blind Based on Ultrasonic Sensor
%A Ruochuan Zhou
%J Intelligent Control and Automation
%P 107-117
%@ 2153-0661
%D 2019
%I Scientific Research Publishing
%R 10.4236/ica.2019.103007
%X <div style=\"text-align:justify;\">
	Ranging based on the reflection principle of ultrasonic wave propagating in
the air has been widely used in modern life, such as car reversing radar, robot
automatic obstacle avoidance etc. Aiming at the situation that the blinds have
no way to know whether there are obstacles or big safety risks in front of
them when they are walking, this paper designed obstacle avoidance gloves
for the blinds based on ultrasonic sensors. With Arduino Nano single chip
microcomputer as main controller, combined with ultrasonic sensor module,
bluetooth module and speaker module, the glove realized the function of obstacle
detection and alarm. The main working principle is by using the ultrasonic
sensors to transmit and receive ultrasonic, the time difference for
transmitting and receiving to detect the distance of obstacles ahead. Besides,
by means of voice module output audio signals with different frequency according
to the obstacle distance, the blinds can judge the distance between
them to the obstacles based on the sound with different frequencies they
heard. In this way, they can make responses in advance to avoid the obstacles
ahead and the happening of the risk.
</div>
%K The Blind
%K Avoidance Gloves
%K Arduino Microcontroller
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=94266