Weaving Wearables into Everyday Life

　　對于那些跟隨廠商社區，可穿戴技術的概念是沒有什么新的。平臺如Arduino Lilypad使制造商開發各種可穿戴式系統，從藝術電子織成的襯衣和裙子，通過T恤，告訴我們有多少未讀郵件。這些項目大多有與他們相關的樂趣或自我表現的元素，但越來越多的工程師被要求開發可穿戴產品的電子產品。第一波消費設備一直以智能手表為主，連大行業的名字也一直在努力結合設計、顯示和電池續航。繼各種人群資助網站的更新，很明顯，有很多創新，在該地區的可穿戴式傳感器。

　　例如，在醫療衛生領域，一個項目在Kickstarter上發起了名為紫。紫色是一種可穿戴式傳感器，測量我們接觸到多少UVA和UVB輻射，讓我們享受陽光來獲得我們的維生素D，但“霜”之前曝光對我們的健康有害。另一個項目，獅子座，是一個感知系統戴在小腿肌肉在鍛煉和提升在Indiegogo。使用3D運動，心率和肌肉活動傳感器，該設備允許用戶改善他們的鍛煉制度，避免潛在的傷害。

　　Behind both of these products are similar core technologies that enable energy-efficient data collection and sharing of information via a wireless link. By using the user‘s smartphone and an appropriate app to display results， a power-sapping display is avoided. A careful look at the photos on the Violet Kickstarter campaign page shows that it is Bluetooth Low Energy （BLE） that is enabling these new products.

　　Originally introduced as Wibree by Nokia， the Bluetooth SIG merged this low-power wireless technology into the Bluetooth Core Specification version 4.0 in 2010. BLE， marketed to consumers as Bluetooth Smart， is unfortunately not backwards compatible with pre version 4.0 Bluetooth devices. However， since many Bluetooth chipsets have a programmable element， some users may simply need a firmware upgrade to gain support. This is possible because BLE uses the same radio and baseband technology as Bluetooth Basic Rate （BR） and Enhanced Date Rate （EDR）， albeit with a different modulation scheme. Having established Bluetooth as a standard feature of phones in the minds of consumers， the addition of BLE to the specification makes it easier to launch power-sipping accessories and build on the success of the smartphone market， rather than have to develop workarounds to achieve a suitable battery-life for such products.