Touchless Lift Button Technology

I&T Solution Touchless Lift Button Technology
(REF : S-0573)
Matched I&T Wish Touchless Lift Button Technology
(REF: W-0265)
Trial Project P-0136
Solution Feature
  • A touch sensor mounted 20mm in front of exist elevator panel such that an array of parallel infrared beams are emitted to detect a finger entering to active detection zone its vertical and lateral coordinates after it blocks and reflects some infrared beams back to the touch sensor.
  • The microcontroller processes the coordinates and generates the corresponding elevator button control command through RS-485 connection by closing the relay dry contacts connected to floor button dry contact. This mid-air touch avoids contact of button surface. To avoid false triggering, the microcontroller will ignore object size beyond allowable limit.
  • Exist dry contacts connected to original buttons are wired to new relay contacts in form of a logic "OR". There is no influence to exist buttons operation and create no safety concern in operation. It can be widely used in almost all existing elevator control panels with various button layouts.
  • Since the sensor projects a sheet of light beams for finger detection, it is not limited to work in the existing control panel. The sensor can be installed in anywhere in absence of a physical button panel in a flat surface to become a virtual control panel.
Trial Application and Expected Outcome
  • This invention can be easily retrofit into almost all variety of elevator models with minimum modification work in terms of required hardware and commissioning time. It requires no mobile phone and smart card to work with and pose no safety risk to exist elevator system.
  • Potential trial sites are primarily from hospitals, transportation, government premises extending to commercial and residential buildings. One trial has been completed at one of the passenger lifts inside HKPC building in May.
Additional Solution Information Development of Contactless Elevator Control Panel.pdf
Info on I&T Solution Provider
Solution Provider:The Hong Kong Productivity Council
Address:78 Tat Chee Avenue, Kowloon Tong, Kowloon
Contact Person:Edmond Chan
Position:Consultant
Tel: 27885059
Email: edmondchan@hkpc.org

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