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Questions and Answers
What does IoT architecture refer to?
The framework that defines how various IoT elements interact within an IoT environment.
Which of the following are layers in the IoT architecture? (Select all that apply)
The network layer is responsible for data acquisition.
False
Name a technology used for data transmission in the network layer.
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What is the primary role of the application layer in IoT?
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What do node devices in IoT refer to?
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The ______ layer includes sensors and other hardware to observe physical objects.
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What do the physical devices in IoT allow users to do?
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Study Notes
IoT Architecture
- Defines how IoT elements (devices, networks, sensors, applications) interact.
- Consists of layers and components performing various functions, from physical devices to data processing applications and storage.
Four-Layer IoT Architecture (Figure 1)
- A visual representation showing the four layers of the architecture. (Note: The image itself is not provided in the notes).
Three-Layer IoT Architecture
- Perception Layer: Includes objects/factors to be detected (e.g., humans, cars, temperature, humidity); comprises sensors, embedded systems, RFID tags, and readers.
- Network Layer: Processes data from the Perception Layer; transmits data to the Application Layer via various network technologies (3G, 4G, 5G, WiFi, Bluetooth, Zigbee, infrared); handles large data volumes.
- Middleware Layer: Crucial for storing and processing massive amounts of data.
- Application Layer: Top layer; delivers applications to users; enables smart object functionality; applications cater to various industry segments (manufacturing, logistics, retail, etc.).
Physical and Logical Designs of IoT
- IoT involves physically connected devices (node devices) embedded with sensors, software, and technologies for data exchange.
- Digital systems record, monitor, and adjust interactions between connected things.
Physical Design of IoT
- Focuses on individual devices, their connections, and protocols for a functional IoT environment.
- Devices perform remote sensing, actuating, monitoring, etc., and transmit information via wired/wireless connections.
- Data generated is used for analysis and system improvement.
Physical Design: Node Devices ("Things")
- Unique identities; build connections, process data, provide interfaces & storage.
- Generate data for analysis and system improvement.
- Components include: Connectivity (USB, Ethernet), Processors (CPU), Audio/Video Interfaces (HDMI, RCA), Input/Output Interfaces (UART, SPI, CAN), and Storage Interfaces (SD, MMC, SDIO).
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Description
Explore the intricacies of IoT architecture, covering the interaction of devices, networks, sensors, and applications. This quiz delves into the four-layer framework as well as the three-layer model comprising the Perception, Network, Middleware, and Application layers. Test your understanding of the roles each layer plays in the overall IoT ecosystem.
