There are different communication technologies between devices, depending on the needs. To connect to the internet we do it through WiFi, while direct communication between devices is done through Bluetooth. This technology allows the transmission of voice and data under a safe frequency of 2.4GHz. On January 29, 2019, the Bluetooth 5.1 standard was introduced, which is specifically weighing for you Internet of Things (IoT)
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What is Bluetooth?
Bluetooth technology has been developed for the Device communication without the need for cables and connectors. It also allows you to create home networks with easy synchronization to share information between different devices.
We must make it clear that Bluetooth and WiFi they are different and we should not confuse them. However, these technologies have been developed for very different actions and fields, which are fully compatible and useful for wearable device users. It is mainly used in smartphones to connect devices without cables. Laptops implement it too, and it's common to see it in smart appliances.
Your name is due to the swedish company Ericsson, who started the development of this technology. The name comes from the Danish and Norwegian king, Harald Blåtand, which translates into English as Harold Bluetooth. Although this wireless communication standard Technically it is called IEEE 802.15.1. Later IBM, Nokia, Microsoft, Motorola and other companies were added to assist in the development of this standard.
There are three categories of Bluetooth:
- Class 1: Approximate range of 100 meters
- Class 2: Approximate range of 10 meters
- Class 3: Approximate range of 1 meter
Bluetooth 5.1 Features
The Bluetooth 5.1 standard was introduced on January 29, 2019 by the Bluetooth SIG. Its main characteristics is that improves transfer speed and also offers greater range with lower power consumption. Something that has been created to drive the implementation of Beacons and the IoT.
What are beacons?
They are small devices for measuring different parameters within the IoT and that integrate Bluetooth 5.1 low consumption. In addition, it allows you to uniquely identify all devices.
Allows us geolocate the different devices without the need for them to integrate GPS technology. It is easily integrated into IoT devices. Allows the communication between devices and publish from these to other devices in real time from a specific location.
They add the 'address lookup' technology that lets you know the location of the devices. It is not as efficient as GPS, but its margin of error is measured in centimeters.
Possible Bluetooth 5.1 Utilities
Bluetooth 5.1 offers us many possibilities, not only for sending information, but for very limited proximity services. It can also be used as an object tracker with an easily traceable sound signal.
Among the Practical applications, we have the locating products in a large warehouse or sending specific advertising. Could also be used for know the bus or subway schedules or download itineraries.
Energy efficiency
Another technology improvement Bluetooth 5.1 is that it is more energy efficient. This above all is important in smartphones, laptops, portable sound systems, smartwatch, etc. The difference with respect to Bluetooth 5.0 is not abysmal, but consumption is reduced to improve the autonomy of the devices.
It has been achieved through a improved caching. In addition, it adds improvements in the transmission of availability of an object when searching for nearby devices. We will obtain more stable connections and improve their performance.
It has also been possible to improve the pairing between various devices. This technology is more intelligent, managing to improve energy efficiency. It will allow us to connect to a device more efficiently to already paired devices, by remembering parameters.
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