Authors:
Wilhelmus De Wilde, Wang Fang, P. Muthuraman, Aditya Das Gupta, Oyendrila Paul, Suzuki Daisuke

Addresses:
Faculty of Architecture and the Built Environment, Delft University of Technology (TU Delft), Delft, South Holland, Netherlands. Department of Production, Golden Dragon Manufacturing, Longquan, Zhejiang, China. Department of Robotics and Automation Engineering, Dhaanish Chennai College of Engineering, Chennai, Tamil Nadu, India. Department of Science, Chittagong College, Chittagong, Bangladesh. Department of Production, Kaizen Manufacturing, Toyota City, Aichi, Japan.

Abstract:

Accessibility remains an issue for older people, physically impaired people, and mobility-impaired people, especially in multi-level buildings. Traditional stairlifts and elevators are expensive to install, require extensive structural modifications and may not be adaptable to existing semi-commercial and residential structures. The paper discusses the design, manufacturing and performance analysis of a Smart Multipurpose Staircase Elevating Stand System that incorporates mechanical, electrical and IoT technologies for safe and controlled movement along stairs. This system features a 2 hp three-phase induction motor, a worm gear reducer, EN 353 alloy steel guides, LM linear bearings and a rigid C-channel frame capable of a 110 kg load. The control architecture comprises a PLC, Variable Frequency Drive (VFD), roller lever limit switches and Bluetooth/Wi-Fi connection for efficient operation and remote monitoring. System performance is evaluated through unit testing, specification testing, integration testing, functionality testing and white-box testing. Experimental results show that the system achieves reliable motion control, accurate positioning, stable load handling, rapid control response and effective emergency stopping within the specified design limits. The developed system is a compact, modular, energy-efficient, and economical solution that improves accessibility without relying on traditional vertical transportation infrastructure and simplifies installation without increasing cost.

Keywords: Worm Gear; Induction Motor; Limit Switches; Motion Control; Load Handling; Emergency Stopping; Economical Solution; Variable Frequency Drive (VFD).

Received on: 01/06/2025, Revised on: 16/09/2025, Accepted on: 01/10/2025, Published on: 05/06/2026

DOI: 10.69888/FTSSM.2026.000755

FMDB Transactions on Sustainable Structures and Materials, 2026 Vol. 2 No. 1, Pages: 28-39

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