دانلود کتاب آنتن ها و لوازم الکترونیکی پوشیدنی

Wearables are defined as electronic technologies incorporated into accessories or garments that can be worn comfortably on the body. This approach has gained much interest in recent years with a goal to incorporate hands-free wireless devices into garments for communications and sensing, including information gathering for the Internet of Things (IoT) and medical applications. Notably, the concept of wearables dates back to the thirteenth century with renewed interest in smart wears starting in the 2000s. Spectacles were the first widely used wearable, followed by the first pocket mechanical watch in the sixteenth century, and abacus rings in the seventeenth century, mostly used by Chinese traders as counting tools for quick calculations. Other instances of wearables include the first watch designed to be worn on the wrist for the Queen of Naples in 1810, and timing devices hidden in shoes to cheat in roulette games in the 1960s and 1970s. Wearable computers were first introduced in the 1980s, and in the 1990s wearable systems were considered, including Global Positioning System (GPS) and private eye displays. The first commercially available wearable computing hardware was developed in the same decade by Rockwell International. In the 2000s, progress on wearables was relatively slow, but in the 2010s efforts on wearables with sophisticated (or smart) functionalities was intensified by the dramatic growth and ubiquitous usage of wireless devices in every aspect of daily life.