物聯網和比肯應用的快速跟蹤設計

　　我們的家庭、辦公室和工廠幾乎沒有一種嵌入式設備，沒有無線通訊的形式。無數的設備都在我們身邊喋喋不休，因為我們開車，鍛煉自行車，或監督制造過程。不久前，事實正好相反。我們家里的溫控器，我們的汽車的音樂播放器，和我們辦公室的自動扶梯都是獨立的應用程序，只是做他們需要做的工作。毫無疑問，物聯網（IOT）和產業形式，IIoT，負責連接浪涌；但這種無處不在的無線環境的基礎是牢固的基礎，在智能手機和他們的應用程序的出現。從工程的角度來看，將射頻連接到產品的任何方面已經有很長的路要走，進行一個離散的無線設計。雖然非常高的體積設計，在離散無線的投資反映在較低的材料成本法案，可能是設計和承擔必要的無線電監管批準的時間超過成本的差異相比，選擇基于模塊的方法。當一個新產品的營銷規范制定，上下文通常是它可以在世界任何國家或地區使用。一個產品只用于銷售地理的日子已經一去不復返了。預先認證的無線模塊，以滿足所有必要的無線電審批標準，大大簡化了設計要求，創造區域產品的變種。

　　Aiding the engineer to speed the job of integrating wireless communication into a design is now a more straightforward task. Resources such asDigi-Key’s IoT product selector break down the process of selecting suitable components and modules to use in development. When choosing a wireless module， the first criteria is that of the communication standard and protocol to be used. The most popular methods are Wi-Fi and Bluetooth， the latter being the default method for short-range， low-power communications. Specifically， the Bluetooth Low Energy （BLE） profile appears purpose made for battery-powered IoT devices. Also known as Bluetooth 4.0/4.2 or Bluetooth Smart， BLE offers a range of 300 feet and a data throughput of up to 270 kbs. In addition to being used in a variety of IoT devices such as sensors and actuators， BLE can be commonly found in healthcare， fitness， home entertainment， and beacon applications. Beacons， used for proximity marketing and indoor navigation purposes， have been picked up by sales hungry retail organizations as a way of pushing marketing offers to passing customers’ smartphones. Use of BLE for retail beacons is predicted to grow by 222% during the period of 2016 – 2020 according to Research and Markets， a market research company. Outside of retail， beacons are being used to keep passengers updated on their flight status and potential delays within an airport.