June 15, 2019
June 15, 2019
June 19, 2019
Experimentation and Laboratory-Oriented Studies
This paper presents the design of an Ultrasonic Alarm Glove for visually impaired that a group of Engineering Technology students at --- ------- State University implemented as part of their Digital Electronics course. The prototype has been demonstrated efficiently in outreach and recruiting events for pre-college, high school and transfer students. The components used are two ultrasonic sensors, a haptic motor, a tilt switch, and an ARDUINO microcontroller. The sensors capture and determine the physical distance of an object within a range. The sensors are programmed to emit a signal, and then know when to expect a return signal; and finally calculate the distance of an object based on the elapsed time between the signals. Digital-to-analog conversion takes place during this process. The wrist of the glove will vibrate to alert the user of an object that is within a certain proximity using the haptic motor. This process needs the reverse operation of analog-to-digital conversion. The vibration pulses vary as signaled by the duration that is detected by the two ultrasonic sensors on the front of the glove and the calculated distance in the program. With the use of a display or serial monitor in Arduino IDE itself, the calculated distances and corresponding vibration lengths sent to the haptic motor can be observed. The current prototype is activated when the hand is extended forward and deactivated by use of a tilt switch when the hands are down. This project at its current state have earned strong attraction from attendees in various recruiting events regardless of age, sector and orientation. The success of thus projects and real time presentation encouraged more active learning and innovative challenging projects integrated in many other courses in Engineering Technology department at ---- by updating the curriculum and catalogues.
Basith, I. I., & Yildiz, F., & Aguirre, A., & Johnson, K. (2019, June), Ultrasonic Alarm Glove Paper presented at 2019 ASEE Annual Conference & Exposition , Tampa, Florida. 10.18260/1-2--33468
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