Microprocessor ultrasonic sonar for the blind people

• Autorzy: Kaczmarski K. , Juda Z. , Milewski G.
• Konferencja: Biomechanika'06 / Międzynarodowa Konferencja (06-08.09.2006 ; Zakopane, Polska)
• Języki publikacji: EN

Abstrakty

EN

Total or partial failure to see should not eliminate men's ability to move. One of the most important difficulties for the blind people is to pass or avoid various barriers while moving in the streets. In majority they use walking-sticks, which are limited to detect barriers laying on the ground. Other barriers like trees branches, platforms, low road signs, etc. generally are being detected to late. In order to help people who suffer that disability a system of sonar based on ultrasonic detection has been worked out. The system is applied mainly as an additional device useful for detecting barriers by space scanning on the height corresponding to men's trunk and head. Ultrasonic sensor of 40 kHz frequency and microcontroller as a basic part of the system have been applied to design and construct the device. The main function of the sonar is to calculate the time for ultrasonic wave to overcome the distance to the barrier and back as well as noise controlled signalling of barrier detection depending on it's settlement.

Słowa kluczowe

EN

blind people; traffic; sonar; ultrasonic detection

PL

niewidomy; ruch uliczny; sonar ultradźwiękowy

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2006
• Tom: z. 26
• Strony: 179--184
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Kaczmarski K.

autor

Juda Z.

autor

Milewski G.

• Department of Applied Mechanics, Cracow University of Technology

Bibliografia

• [1] Śliwiński A.: Ultradźwięki i ich zastosowanie, WNT, Warszawa 2001.
• [2] Obraz J.: Ultradźwięki w technice pomiarowej, WNT, Warszawa 1983.
• [3] www.pzn.org.pl, witryna internetowa PZN.
• [4] Różycki M.: Ultradźwięki, PWT, Warszawa 1955.
• [5] Wyrzykowski R.: Ultradźwięki, PWN, Warszawa 1957.
• [6] „Nowy elektronik” NE-372K.