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IoT Solution(46)

上海快3

IoT applications need to be connected via a network to communicate with each other. Different application scenarios need to choose proper network architecture. According to the characteristics of the network, distance and speed can be used as classification.

 

Short Distance

(tens to hundreds of meters)

Long Distance

(several kilometers)

Low Transfer Rate

(KB/s)

BLE

NB-IoT

LoRa

High Transfer Rate

(MB/s)

Wi-Fi

Ethernet

LTE

Low transmission rate usually means low power consumption, which is suitable for node devices that use batteries as power sources.

Because it is connected to the cloud server through the Internet, each device needs an IP address. Therefore, a network protocol without an IP address must be converted by a gateway before it can connect to the cloud server.

With IP Address

Without IP Address

Ethernet

Wi-Fi

NB-IoT

LTE

BLE

LoRa

Wireless networks are divided into licensed and unlicensed according to the frequency bands used. Unlicensed frequency bands have different definitions in different countries and regions, but they can be used freely in ISM (industrial, scientific, medical) applications without authorization. If necessary, they need to set up a router or gateway to connect to the Internet. The authorized frequency band usually refers to the connection with the operator's base station. Therefore, using this method requires a operator's SIM card to connect to the network through the operator's base station.

Licensed Band

Unlicensed Band

NB-IoT

LTE

Wi-Fi

BLE

LoRa

Nuvoton NuMaker development platform supports several network communication to help developers make appropriate choices based on application scenarios.

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