| Popis: |
Nowadays, scientific knowledge is being developed frequently to offer versatile, safer, and sound user tendencies. At this time, a large number of prevalent techniques that have been indicated by visually impaired people are intelligent tools; however, it possesses limitations. With the recent technological innovation, it isn’t easy to prolong the assistance acquire for people who have visual disabilities throughout their movability. Thus, this design provides cost-effective ultrasonic-based aids, including a hat, stick, and shoes for visually encountered people today, to achieve exclusive self-reliance and even be exempt from additional assistance. Ultrasonic sensors were able to inspect different heights, and simultaneously the user will be alerted via a buzzer. A vibrator was also implemented as a substitute gadget in minimal signal coverage areas and noisy environments. The buzzer and vibration motor are initialized when the obstacle is identified. A global positioning system (GPS) was also included in the design of aids and synchronized with google map within mounted buttons. The text message unit is also utilized by the user to send out SMS info to the saved phone numbers in the Arduino in an emergency text-request by providing the allocated longitude and altitude position. The results revealed a high accuracy of the system under different circumstances, indoor and outdoor, as feedback of different users. In conclusion, this system is considered an inexpensive, friendly user, and sensible blind assist techniques for the blind and visually impaired people. |
