Bluetooth Dual Mode refers to its support for BasicRate (BR) and Enhanced Data Rate (EDR) operation of legacy Bluetooth, as well as the latest Low Energy (LE) standard. Bluetooth 4.0 is the beginning of the dual-mode standard, in addition to the technology standards included in the traditional Bluetooth, added a low-power Bluetooth technology (LE), respectively, for different application scenarios. And single-mode Bluetooth devices are called BluetoothSmart devices.
Bluetooth is a wireless technology standard that enables the exchange of data over short distances between fixed devices, mobile devices, and building personal area networks. Bluetooth technology was originally created by telecommunications giant Ericsson in 1994 as an alternative to the RS232 data line. Bluetooth allows multiple devices to be connected, overcoming the challenges of data synchronization.
Bluetooth technology may have the future direction of development
A, Bluetooth wireless sensor network
For the creation of smart city, smart building is one of the important links. In fact, Bluetooth wireless sensor network is used to monitor the light, temperature, humidity and occupancy, for smart buildings, this technology can not only improve productivity to reduce costs, but also for the production equipment can be better and timely adaptation to the surrounding environmental conditions, and in the maintenance of the requirements can be reached as soon as possible.
Two, Bluetooth indoor navigation
We are now commonly used positioning system is generally gps, but gps also has a big shortcomings, there is no way to do indoor coverage. So Bluetooth indoor positioning technology has come quietly. To create a smart city to improve people's quality of life and experience, so that planners better understand and utilize the space, will certainly use location-based services of Bluetooth devices, and the shipment rate of such devices will increase year by year.
Three, data transmission
Fitness is now the new fashion, and fitness-related personalized wearable devices have become a new fad. The data transfer feature of Bluetooth technology has taken the functionality of wearable devices to a new level. Whether it's a fitness tracker or a smartwatch, or monitoring steps, sleep and blood pressure, it's not just in the fitness world, but in the medical field as well.
Four, audio transmission
Bluetooth audio transmission is the most basic function, from the Bluetooth headset to the current car audio entertainment and navigation, Bluetooth audio transmission function has become more and more extensive, the future of the relevant products will be more broad market.