Abstract
Keys and consoles are used in various authentic connections, particularly human- machine interactions in the present state of art of Human Machine Interfaces (HMI). Automatic Teller Machines (ATMs), Charge/MasterCard machines, and pass-code-based support frameworks are a few cases wherein an individual has to touch the keys to provide a secret code are instructions to the machines. However, in situations such as the new COVID 19 pandemic, it is not desirable for customers to touch the same keys as it may cause easy spreading of chronic infections. There is therefore a need to provide a way to input data by users without physically touching any keys. This need is met in our design by offering a device and method to accomplish key or keyboard operation input operation based on the detection of a user finger with low power the laser light.
Highlights
Assistive-technologies have attracted the attention of several Human-Computer Interaction (HCI) researchers over the past few decades
Atul Gupta has developed a system [14] that generates a dynamic and spatial keyboard on an automated teller machine (ATM). This innovation entails obtaining Automatic Teller Machines (ATMs) users' preferred language information and retrieving the numerical values, messages, and any other characters needed to be displayed on the dynamic keyboard
PROPOSED SYSTEM We have proposed a new approach to enable touch-free finger sensing with low power laser light for the purpose of entering the data through the keyboards in different daily applications like ATM transactions, Lift- operations and many more
Summary
Assistive-technologies have attracted the attention of several Human-Computer Interaction (HCI) researchers over the past few decades. Most of the computational devices make it mandatory for the user to input the user login credentials to be entered through the press of a single key or a series of keystrokes These kinds of user inputs require the user to physically touch the keys on some keypad/keyboard for input of the required data. Adam Nowosielski et al in [2] have implemented a touch-free keyboard for the physically challenged people who are unable to operate standard electronic equipment or computer input devices. In this keyboard system, `typing' is done with head movements which are captured by thermal sensors. This paper presents a novel design for implementing a touch-free finger sensing keyboard using the laser technology for reading the user input
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