The Bluetooth Special Interest Group (SIG) released the Bluetooth network specification in mid-July, and its release heralds something bigger than the new wireless spec. This initiative officially established the latest major developments in mesh technology, which will increase its application in the Internet of Things.
The technology's coverage on home and networked commercial devices is expanding, with a few mesh network standards or protocols. In 2004, the Zigbee Alliance first released a low-power mesh network, and now you can find it in smart home solutions, including networked lighting products from companies such as Philips and Osram, as well as smart meters widely deployed in the US and UK. . The second-generation agreement, Thread, launched in 2015, was a great success when it was launched in 2015 with Nest and Google as founding members.
Thread-enabled products are just around the corner due to their reliable low-power IP network connectivity. Companies like Eero are encouraging other vendors to develop mesh applications that are integrating threaded infrastructure with its grid-based Wi-Fi network. With the products of Google, Samsung, NETGEAR, Linksys and Luma, Wifi networks are becoming more and more popular at home, which further increases the popularity of network usage.
Since the Internet of Things is already full of mesh options, what else does Bluetooth need to do? This seems to indicate that their participation in this area may confuse the market because the market is not sure which type of network should be used for each new IoT development. Every low-power grid technology has its advantages and best applications, so we don't have a unique grid standard.
In addition, the Internet of Things and Bluetooth technology - provide developers with more tools to make it more popular.
However, Bluetooth technology is connecting 8.2 billion devices today, and it is expected that by 2021, Bluetooth devices will be used for 60% of wireless devices (according to ABI Research). There are also many different versions of Bluetooth, from classic "one-to-one" communication, to continuous voice/audio streaming or device-to-device data transmission, to broadcasts like "one-to-many". Bluetooth is their latest product: adding "many-to-many" communications for large networked applications such as asset tracking, home and building automation, lighting, beacons and smart metering.
Zigbee and threads pass information through a routing technique. In this technique, a message jumps from one node to another to reach the final destination. However, Bluetooth networks use a "managed gush" technology in which each device in the network sends information to other nodes. While it may be easier and more flexible to deploy on a simpler application, it will also increase the latency and power consumption of some large networks.
Why do you want to aggregate on the grid?
While it's interesting to discuss the advantages of zigbee/thread routing and Bluetooth networking technology, developers just want to understand the answer to a question: "Why are so many wireless standards aggregated on the grid?" Let's consider the grid to the Internet of Things. Benefits:
Extended range - In a star network topology, all devices must be within the radio range of the central device. Our mobile phones and Wi-Fi experience this: our calls may be lost, or our Wi-Fi connection is lost when we are out of range. For grids with other device routing messages, they can communicate even when they are not within range of each other.
Self-healing network - Many early home wireless technologies supported multi-hop performance, but the network configuration was manually set during network installation. Radio conditions and the environment change over time, and the grid provides autonomous self-healing by allowing multiple paths between the source and destination.
Enhanced Network Reliability - A well-designed and well-functioning mesh network provides reliability because it better bypasses faulty or intermittent connections.
Scalability - As the network grows to hundreds of devices, having a single central connection point can be problematic. Building a larger, scalable network with a grid allows you to enhance your network's propagation radio load.
Improve energy efficiency and battery life - For devices that are frequently transmitted, transmission power becomes an important factor in battery life calculations. The grid enables these devices to reliably handle communication problems with lower transmit power and powered routers.
A mesh system does not automatically solve all IoT problems. It remains to be seen how the Bluetooth network will perform in large-scale networks in the real world. We need to see more Bluetooth domain operations to assess its feasibility, reliability, scalability and performance. Interoperability is especially important in the network. To date, Bluetooth-enabled products are often point-to-point solutions where a vendor controls applications at both ends. However, in real-world grid applications, we will see multiple products from different manufacturers that need to interoperate with seamless message routing and security.
Just as Zigbee and threads are addressing the issues of interoperability and application layer challenges, Bluetooth networks will evolve to meet the needs of the growing and evolving IoT ecosystem. This gives developers and end users a new solution for larger networks.
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