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All Journal JoDENS: Journal of Digital Ecosystem for Natural Sustainability
Tino Winata Sumarno
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Computer Science & IT Decision Sciences, Operations Research & Management

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ArachnoSAR_A Quadruped Spider Robot Prototype with Haar Cascade-Based Face Detection to Support Search and Rescue Operations James Lim; Eril Sanjaya; Fernando; Augustian Gautama; Tino Winata Sumarno; Canniago Verrian; Andi Saputra; Agus Suwandi; Raymond Erz Saragih
Journal of Digital Ecosystem for Natural Sustainability Vol 6 No 1 (2026): Juli 2026
Publisher : Fakultas Komputer - Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jodens.v6i1.386

Abstract

Search and rescue (SAR) operations often require access to areas that are hazardous or unreachable for human rescuers. This study developed ArachnoSAR, a low-cost four-legged (quadruped) spider robot prototype that integrates legged locomotion, camera-based human detection, and automatic notification. The robot is driven by eight SG90 servo motors controlled by an ESP32, while a Raspberry Pi processes the camera stream using a Haar Cascade classifier and sends detection photographs to a Telegram bot, accompanied by a buzzer alert. Preliminary indoor testing showed that the system detected frontal faces at distances of up to 300 cm at 12 to 17 frames per second, while locomotion tests recorded speeds of 0.55 cm/s on ceramic and 1.36 cm/s on asphalt surfaces, with an estimated operating time of about 51 minutes. Identified limitations include the requirement for frontal face orientation, sensitivity to low lighting, motion blur, and dependence on internet connectivity for notification. These results indicate that the prototype is feasible as a proof of concept, while highlighting the need for image stabilization, deep learning based detection, and offline communication for real SAR deployment.
Co-Authors Agus Suwandi Andi Saputra Augustian Gautama Canniago Verrian Eril Sanjaya Fernando James Lim Raymond Erz Saragih