We will introduce Bluetooth and WiFi connection technologies in more detail and compare them based on the most important features in commercial and industrial IoT applications.

Bluetooth -Technologie

Bluetooth -Technologie Definition

Bluetooth technology is a low-power wireless solution operating on the 2.4 GHz ISM frequency band. Over the years, Bluetooth technology has continued to expand, and now it has great flexibility in terms of distance, bandwidth, and communication topology, which can meet the needs of different IoT applications.

Bluetooth -Technologie Technical Details

Derzeit gibt es zwei verschiedene Bluetooth -Radiooptionen: Bluetooth Classic und Bluetooth niedrige Energie (Bluetooth le). Klassischer Bluetooth (oder Br/edr), Das ursprüngliche Bluetooth -Radio, wird immer noch häufig in Streaming -Anwendungen verwendet, especially audio streaming.Bluetooth Low Energy module is mainly used for low-bandwidth applications where data is frequently transmitted between devices. Bluetooth Low Energy ist bekannt für seinen extrem geringen Stromverbrauch und seine Beliebtheit bei Smartphones, Tablets und PC -Computer.

Bluetooth Low Energy is divided into point-to-point, star, mesh and broadcast topologies. In the mesh topology, the nodes are directly connected without communicating with other nodes through the hub. Nodes can send data and information to other nodes outside the communication range of the original source node, expanding the network coverage in a large area.

Bluetooth -Technologie Anwendung

Bluetooth Low Energy is most commonly used in medical and fitness equipment, smart lighting systems, real-time positioning systems, and indoor navigation applications.

W-lan Technologie

W-lan Technologie Definition

Wi-Fi is the brand name of all IEEE 802.11 standard wireless local area networks (Wlan). The working frequency band of Wi-Fi is usually 2.4 GHz und 5 GHz ISM, but newer versions of Wi-Fi also use other frequency bands.

W-lan Technologie Technical Details

There are many versions of Wi-Fi. The Wi-Fi Alliance recently adopted a new version numbering system: W-lan 1 (802.11B), W-lan 2 (802.11A), W-lan 3 (802.11G), W-lan 4 (802.11N, Wi -Fi 5 (802.11AC) und Wi-Fi 6 (802.11Axt). The latest version can meet the needs of various applications, including longer distance, higher throughput and larger coverage.

The most popular topology for Wi-Fi is the star topology. But in the star topology, nodes can only communicate with each other through the hub.

W-lan Technologie Anwendung

Wi-Fi is mainly used for large file transmission and data transmission applications with high bandwidth, such as video streaming.

In IoT applications, Wi-Fi is most commonly used for devices that need to directly connect to the Internet. But it usually cannot meet the low power consumption requirements, and it is rarely used in applications and devices that need to run on micro batteries for a long time.

Bluetooth VS WiFi technology Comparison Table:

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