Practical Java Programming for IoT, AI, and Blockchain by Perry Xiao

Author:Perry Xiao
Language: eng
Format: epub, pdf
ISBN: 9781119560036
Publisher: Wiley
Published: 2019-07-30T00:00:00+00:00

Figure 7.3: The fourth industrial revolution, or Industry 4.0 (top) and the previous industrial revolutions (bottom)

(Source: Adapted from https://thingtrax.com/2017/10/05/industry-4-0-increases-machine-efficiency/)

7.2 IoT Communication Protocols

The devices on the IoT communicate differently than computers communicating on the Internet, which tend to use a lot of bandwidth to transmit a large amount of data, for which timing is not always important. The most commonly used Internet protocol is the Hypertext Transfer Protocol (HTTP), which is the magic behind the World Wide Web (WWW). Devices on the IoT tend to have limited power supply, limited computing power, and limited bandwidth. They typically need to transmit a small amount data intermittently, but timing is often important. There are several communication protocols specifically designed for such communications. The following are some of the most important IoT protocols.

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