Autonomous Mobile Robots (AMRs) face critical multi-story navigation challenges particularly due to passenger obstacles blocking arm extension in crowded elevators. Commercial Finger Bot's single-position limitation requiring multiple units per panel. Thailand elevators predominantly lack IoT systems making communication difficult with 44,600+ legacy elevators installed during 2013-2022 pre-IoT era. WiFi signal attenuation in metal elevator enclosures creating communication dead zones, and API security vulnerabilities exposing hacking risks and unauthorized system access. MPFB features servo-driven telescopic pressing arm extending precisely 400mm matching ASME A17.1 and Thai Industrial Standards (TIS) panel widths. Integrated 4-5N force sensor verification exceeding ≤3N TIS/ASME maximum requirement for reliable button activation via precise vertical perpendicular pressing motion. Innovative sub-panel mounting design eliminating passenger access obstructions. Bluetooth communication where AMRs transmits button position coordinates enabling MPFB to precisely move and press while penetrating metal enclosures where WiFi fails. Multi-position fixed pressing mechanism compatible with both legacy and modern elevator control systems. Laboratory tests conducted with mock elevator panels environments yielded 95% success rate with 20 mm positioning error, fundamentally overcoming all identified limitations of prior robotic approaches.

Keywords

AMR, elevator automation, IoT robotics, multi-floor navigation, button pressing