IoT Communications and Sensors Quiz

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Questions and Answers

What is the primary function of a transducer?

  • To convert signal from one physical form to another physical form (correct)
  • To store energy
  • To generate eddy current
  • To generate heat

Which device converts sound to an electrical signal?

  • Antenna
  • Microphone (correct)
  • Strain gauge
  • Speaker

Which sensor can detect gases like LPG, CH4, and CO?

  • DHT22
  • MQ-5 (correct)
  • HC-SR04
  • PIR

What does 'Resolution' indicate in a sensor?

<p>The smallest change in input that can be detected (A)</p> Signup and view all the answers

Which modulation technique is used by Zigbee for the 2.4 GHz band?

<p>OQPSK (C)</p> Signup and view all the answers

What does 6LoWPAN optimize?

<p>Packet transmission in Low-power and lossy networks (LLN) (D)</p> Signup and view all the answers

How long is the Network ID in a Z-Wave network?

<p>2 Bytes (A)</p> Signup and view all the answers

What does the Constrained RESTful Environments (CoRE) framework include for service discovery?

<p>All of the above (D)</p> Signup and view all the answers

Which policy controls the duration for which transmitted data is considered to be valid in an IoT network?

<p>Lifespan policy (A)</p> Signup and view all the answers

Which protocol is CoAP based on?

<p>UDP (D)</p> Signup and view all the answers

What is considered the main nervous system of any manufacturing industry?

<p>Information and Communication Technology (ICT) (C)</p> Signup and view all the answers

What is the impact of increasing renewable energy consumption on sustainability?

<p>Increases sustainability (A)</p> Signup and view all the answers

What is the concept of JIDOKA in Lean Production System?

<p>Stopping production when there is a problem (A)</p> Signup and view all the answers

What is a 'value stream' in Lean Production System?

<p>All the actions required for a product from order to delivery (D)</p> Signup and view all the answers

What do L, D and T stand for under 'People Engagement' in the Lean production System?

<p>Learn, Do, Teach (D)</p> Signup and view all the answers

Which of the following is a benefit of smart and connected products?

<p>Improved recall process of product (B)</p> Signup and view all the answers

Which resource is associated with the 'Optimization' categorization of Smart and connected products?

<p>Optimization algorithms (A)</p> Signup and view all the answers

Which of the following technologies can provide safety in radioactive zones within a smart factory?

<p>Augmented Reality (D)</p> Signup and view all the answers

What are the characteristics of smart factories?

<p>Connection, Optimization, Transparent, Proactivity, Agility (D)</p> Signup and view all the answers

The amalgamation of CPS and the evolution of Internet-based technologies led to the development of the Industrial Internet.

<p>True (A)</p> Signup and view all the answers

The real-time monitoring of the supply chain reduces inventory and capital requirements.

<p>True (A)</p> Signup and view all the answers

What are Cyber-Physical Systems (CPS)?

<p>Interacting networks of physical and computational components (C)</p> Signup and view all the answers

What is one of the key features of CPS in terms of computation?

<p>Reactive computation (A)</p> Signup and view all the answers

What architecture is used for designing CPS-based manufacturing systems for Industry 4.0?

<p>5C architecture (C)</p> Signup and view all the answers

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Study Notes

Transducers

  • Primary function: Convert signals from one physical form to another.
  • Example: A microphone converts sound waves into an electrical signal.

Sensors

  • MQ-5: Detects gases like LPG, CH4, and CO.
  • Resolution: Indicates the smallest change in input that a sensor can detect.

Communication Technologies

  • Zigbee: Uses OQPSK modulation technique for the 2.4 GHz band.
  • 6LoWPAN: Optimizes packet transmission in Low-power and lossy networks (LLN).
  • Z-Wave Network ID: 4 Bytes long.
  • Class 1 Bluetooth radios: Typically have a range of 100 meters.
  • CoRE Framework: Includes Registration Interface (RI), Resource Directory (RD), and REST based protocols like HTTP and CoAP for service discovery.
  • Lifespan policy: Controls the duration for which transmitted data is considered valid in an IoT network.
  • MQTT: Supports 3 levels of QoS.
  • CoAP: Based on UDP (User Datagram Protocol).

Manufacturing and Industry

  • Information and Communication Technology (ICT): Considered the main nervous system of any manufacturing industry.
  • Renewable energy consumption: Increases sustainability.
  • JIDOKA: Stopping production when there is a problem in Lean Production System.
  • Value stream: All actions required for a product from order to delivery.
  • 'People Engagement' in Lean production System (L, D, T): Learn, Do, Teach.
  • Smart and connected products: Improve the recall process of products.
  • Optimization in Smart and Connected Products: Associated with Optimization algorithms.
  • Safety in Radioactive Zones (Smart Factory): Augmented Reality can provide safety in radioactive zones.
  • Smart Factory Characteristics: Connection, Optimization, Transparent, Proactivity, Agility.
  • Industrial Internet: Amalgamation of CPS and the evolution of Internet-based technologies.
  • Supply Chain Monitoring: Real-time monitoring reduces inventory and capital requirements.
  • Cyber-Physical Systems (CPS): Interacting networks of physical and computational components.
  • CPS Computation: Reactive computation.
  • CPS-based Manufacturing Systems: Utilize a 5C architecture for design.
  • Collaboration Platform (Industry 4.0): A platform used for connecting and sharing information between different systems in a factory.

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