Rompi Penyedia Informasi bagi Penyandang Tunanetra Menggunakan Multisensor HC-SR04

Abstract

Various electronic travel aids for people having visual impairment have been developed based on ultrasonic object detection employing the HC-SR04 ultrasonic proximity sensor. However, most of them do not consider blind spots where harmful objects cannot be detected. This study discusses the development of a vest that can detect objects in front of the blinds more widely and provide sound alert if an object in front is detected. This detector was developed based on an Arduino Uno equipped with five HC-SR04 ultrasonic sensors, and a mini DFPlayer module. In addition, blind area analysis of sensor detection is carried out to overcome objects that are not detected by similar studies. Horizontally, this travel vest sweeps objects up to 150 cm in distance with a 25o right or left angle deviation from forward direction. Vertically, object detection reaches up to 150 cm in distance with both upward and downward deviation of 30o from the vest.

Alat Bantu Penyandang Tunanetra Emergency Smart Hat

“…Desain skema rangkaian listrik bagian sensor terdiri dari komponen Sensor, Df Player Mini, dan speaker mini disambungkan dengan kabel merah (Vcc), kuning (Trigger), Hijau (Echo), dan Hitam (Ground) dan masuk pada interface mikrokontroler untuk membentuk sistem bagian sensor [10], [11]. Desain selanjutnya pada skema rangkaian listrik bagian GPS dan Alarm [12] yang ditunjukkan pada Gambar 5.…”