The intelligent bracelet, Smart Bracelet, is an electronic wristband that can monitor various body functions. The smart bracelet is worn on the arm and is equipped with various sensors and a display. The collected data can be transmitted via Bluetooth Low Energy( BLE) or via ANT+ to a notebook, smartphone or tablet PC and used for activity tracking.
Smart wristbands belong to the smart wearables and are equipped with various sensors. For example, with sensors with which acoustic signals such as the pulse rate can be recorded. Furthermore, with optical sensors with which the oxygen saturation in the blood can be determined, with temperature sensors for measuring the skin temperature, with acceleration sensors for determining the vital activities and calorie consumption or with three-axis gyro sensors with which the steps of the wearer are recorded.
Due to the many measurement options related to bodily functions, smart wristbands can be used for permanent monitoring of chronically ill patients in hospitals and nursing homes who need continuous monitoring, as well as Ambient Assisted Living( AAL) in medical monitoring of elderly people and monitoring of people who are active in sports.
The concept of the smart wristband is such that the signals from the various sensors are captured, amplified by analog front-ends, digitized by AD converters and transmitted to the tablet PC or smartphone via Bluetooth Low Energy (BLE) or ANT+. The transmission chain can be extended via the Internet of Things( IoT) to the appropriate monitoring equipment, including alarm functions for emergencies. The various smart wristbands also show incoming calls, received emails or short messages on their displays. Since the supply should be battery-independent, thermoelectric generators can be used for a permanent power supply.
As operating systems, smart bracelets work with Android Wear, an Android variant from Google. Smart bracelets are particularly popular as fitness trackers in conjunction with corresponding apps, hence the name fitness bracelet.