The working group bluetooth SIG, based in 1998, stated about the development of specifications version 4.0, which includes the regimes of low energy consumption. Similar devices will be claimed in different spheres, beginning from sport and protection, and concluding by public health. For example, the alliance of public health (Continua health alliance) already selected Bluetooth low energy consumption as basic technology of data transmission.
Which is interesting, Nokia in 2004 created and presented the technology operating times , which more lately was called Wibree. It borrowed the basic principles of bluetooth operation , but it was characterized by cheaper components, but the distance of wireless connection comprised not more than 10 meters and in this case it had ultralow energy consumption.
The technology bluetooth low energy consumption supports transfer from 8 to 24 octets with the speed 1 megabit per second. This technology uses adaptive frequency, which is capable of being adjusted slightly under all versions Of bluetooth for decreasing the possible action of other devices in ISM range. In this case, the delay composes a total of several milliseconds, and the coating zone counts up to 100 meters. Furthermore, new standard requires 24- bit cyclic checking for the protection against interference and AES-128 coding. The specifications of version 4.0 also imply that the controller will be able to send device in the sleep regime , economizing thus the energy consumption.
Immediately, after the declaration Of bluetooth SIG about bluetooth low energy consumption specifications, CSR company stated their solution blueCore7 corresponds to this specification. BlueCore 7 is the new chip company , in which combined such technologies, as Bluetooth, Bluetooth low energy consumption, GPS and FM radio.