Bluetooth Technology

Hey Readers. Every now and then, people talk about the use of automation in diverse processes of business, technology, developments and day-to-day activities. As our world has grown increasingly connected, we’ve adopted a number of technologies to help us stay in contact with our friends, acquaintances and family.

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As it is a dynamic world, many technologies have come and stayed, but many have disappeared very soon. Today, we will consider the one that has stayed from a ling time: “Bluetooth Technology”. It is a wireless connectivity standard using radio signals and has become one of the most commonly used protocols. This wireless technology connects mice and keyboards to our computers. It also connects our phones to speaker, mics, headphones and various other technical devices to make our life easy and convenient.

How does Bluetooth work?

The Bluetooth RF transceiver (or physical layer) operates in the unlicensed ISM band centered at 2.4 gigahertz (the same range of frequencies used by microwaves and Wi-Fi). The core system employs a frequency-hopping transceiver to combat interference and fading.

Bluetooth devices are managed using an RF topology known as a “star topology.” A group of devices synchronized in this fashion forms a piconet, which may contain one master and up to seven active slaves, with additional slaves that are not actively participating in the network. (A given device may also be part of one or more piconets, either as a master or as a slave.) In a piconet, the physical radio channel is shared by a group of devices that are synchronized to a common clock and frequency-hopping pattern, with the master device providing the synchronization references. (Source: https://www.scientificamerican.com/article/experts-how-does-bluetooth-work/)

An integral part of the industrial IoT expansion, Bluetooth® technology helps manufacturers achieve new levels of productivity and safety. The improved location accuracy and robustness of the technology help drive down implementation and maintenance costs, enhance operational efficiency, and support commercial and industrial solutions that strive to increase workplace safety and security in environments like chemical plants. (Source: https://www.bluetooth.com/blog/bluetooth-emerging-market-forecasts-predict-continued-growth-through-2024/)

Bluetooth is a PAN technology. It offers fast and reliable transmission for both voice and data communication. It also suports both packet-switching and circuit-switching. Mainly one device is a master (phone or lapy for instance) and other devices are connected to it. Two or more piconets are interconnected to form a scatter net.

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Advantages:

  • Wireless
  • No setup needed
  • No need of internet connectivity
  • Low power consumption
  • Industry Wide support

Disadvantages:

  • Short range
  • Cant interfere with wireless LAN
  • A bit expensive to put

Bluetooth has a bright future as it is being used with AI and other latest technology as a fusion to create disruption in the industry.

  • Bluetooth asset tracking tags are helping more commercial and industrial environments track and manage critical assets to improve the operational efficiency, leading to 4.2x growth in annual shipment of Bluetooth asset tracking tags by 2024
  • Bluetooth technology plays a key role in workplace safety and security and that 60% of those surveyed are currently testing or deploying workplace management solutions
  • 4x range improvement helps drive reliable connections in harsh environments and can support predictive maintenance across a variety of complex industrial and commercial spaces.