18-05-2012, 02:56 PM
Bluetooth low energy (BLE)
Abstract
Bluetooth low energy (BLE) is a feature of Bluetooth 4.0 wireless radio technology, aimed at new, principally low-power and low-latency, applications for wireless devices within a short range (up to 50 meters / 160 feet -see table below). This facilitates a wide range of applications and smaller form factor devices in the healthcare, fitness, security and home entertainment industries.
Devices using Bluetooth low energy wireless technology are expected to consume a fraction of the power of Classic Bluetooth enabled products for Bluetooth communication. In many cases, products will be able to operate more than a year on a button cell battery without recharging. It will be possible to have sensors such as thermometers operating continuously, and intermittently communicating with other devices like a mobile phone. This may increase the concerns for privacy, as when the remote, low power, continuously on, sensor would be presence sensors or similar devices.