Abstract
This paper introduces ClothFace, a shirtsleeve-integrated human-technology interface platform, which comprises two wrist antennas and three radio frequency identification (RFID) integrated circuits (ICs), each with a unique ID. The platform prototype, which is created on a shirtsleeve by cutting the antennas and antenna-IC interconnections from copper tape, can be used for push button and swipe controlling. Each IC can be activated, i.e., electrically connected to the two antennas, by touching the IC. These ICs can act as wireless input buttons to the technology around us. Due to the used passive ultrahigh-frequency (UHF) RFID technology, there is no need for clothing-integrated energy sources, but the interface platform gets all the needed energy from an external RFID reader. The platform prototype was found to be readable with an external RFID reader from all directions at distances of 70–80 cm. Further, seven people giving altogether 1400 inputs tested the prototype sleeves on a table and on body. In these first tests, 96–100% (table) and 92–100% (on-body) success rates were achieved in a gamelike testing setup. Further, the platform was proved to be readable with an off-the-shelf handheld RFID reader from a distance of 40 cm. Based on these initial results, this implementation holds the potential to be used as a touch interface blended into daily clothing, as well as a modular touch-based interaction platform that can be integrated into the surfaces of electronic devices, such as home appliances.
Highlights
Technology today allows us to communicate and participate, as well as play games, organize our lives, and learn new things
In this study, we introduce a new ClothFace concept, a shirtsleeve-integrated touchpad solution, which comprises two wrist antennas and three radio frequency identification (RFID) integrated circuits (ICs). e interface prototype, which is integrated on a shirtsleeve by cutting the antennas and antenna-IC interconnections from copper tape, can be used for push button and swipe controlling
Our step as further work is to create a wearable prototype, which can be comfortably used for daily life actions. e sleeve platform will be embedded between two layers of cotton textiles. e copper tape lines and the RFID IC strap pads inside will be separated by a thin textile net, which means that they will form a contact when the surface of the top layer textile is touched. is will remove the need for a specific input finger and integrate the platform seamlessly into the shirtsleeve
Summary
Technology today allows us to communicate and participate, as well as play games, organize our lives, and learn new things. Us, a new type of approach is needed in order to fully benefit from passive UHF RFID in human-technology interaction. To satisfy this need, we have developed our ClothFace solution, in which several combined passive RFID IC components are “switched on and off” by touchcreated electrical interconnections to RFID antennas. In our platform, these two copper tape conductors are connecting the two copper tape wrist antennas In this first prototype of the sleeve interface, the ICs are activated using an “input finger” that is a piece of textile (a finger cut from a glove), coated with a copper tape material. When a specific IC strap is touched, the copper tape in the input finger or the bare finger itself will create the needed electrical interconnection from the IC strap pad to the second copper tape line and switch that specific IC readable to the RFID reader
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