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Questions and Answers
What is the primary function of a transducer?
In sensor technology, what does 'sensor accuracy' specifically indicate?
What defines an 'active sensor' in the context of sensing technology?
In IIoT systems, what is the main role of an 'Actuator'?
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Zigbee technology is popular for which of the following?
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When compared to passive sensors, what capability distinguishes active sensors?
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What is the primary function of IEEE 802.15.4 in IoT?
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Which of the following is a characteristic of 6LoWPAN?
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What is the primary application of Near Field Communication (NFC)?
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Which type of actuator works on the principle of compression and decompression?
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What is the significance of ISA 100.11a in IIoT?
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Which of the following is NOT a characteristic of 6LoWPAN?
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Which technology is best suited for industrial communication?
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What is the maximum data rate possible in Wireless HART?
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Which Quality of Service (QoS) level in MQTT is also known as 'Exactly once'?
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Which architecture does the CoAP work on?
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Which type of sensor is an infra-red sensor?
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Which technology is best suited for establishing low-rate wireless personal area networks?
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Study Notes
Transducers and Sensors
- Primary function of a transducer is to convert one form of energy into another, facilitating measurement and control in systems.
- 'Sensor accuracy' indicates the degree to which a sensor's output matches the actual value of the measured parameter, reflecting precision in measurements.
Active and Passive Sensors
- An 'active sensor' generates its own energy for operation, differentiating it from passive sensors which rely on external energy sources.
- Compared to passive sensors, active sensors have the capability to actively emit signals and detect responses, allowing for greater sensitivity in measurements.
IIoT Systems Components
- In IIoT systems, an 'Actuator' converts control signals into physical actions, enabling automation and control of processes.
- ISA 100.11a provides a wireless communication standard for industrial automation, enhancing reliability and interoperability in IIoT environments.
Communication Technologies
- Zigbee technology is popular for low-power, low-data-rate applications in home automation and industrial monitoring, emphasizing energy efficiency.
- IEEE 802.15.4 is crucial in IoT, serving as the underlying MAC and PHY layer for low-rate wireless personal area networks (LR-WPANs).
- 6LoWPAN is characterized by enabling IPv6 packets to be sent over low-power wireless networks, facilitating Internet connectivity for devices with limited resources.
Wireless Technologies and Protocols
- The primary application of Near Field Communication (NFC) includes secure contactless transactions and data exchange over short distances.
- The actuator that operates on the principle of compression and decompression is a pneumatic actuator, commonly used in industrial applications.
- Wireless HART allows for a maximum data rate of 250 kbps, designed for process automation with reliable wireless communication.
- In MQTT, the Quality of Service (QoS) level known as 'Exactly once' ensures that messages are delivered exactly one time, minimizing duplicate messages.
CoAP and Sensor Types
- CoAP (Constrained Application Protocol) operates on a client-server architecture tailored for resource-constrained devices in IoT.
- Infra-red sensors are categorized as active sensors, utilizing emitted infrared radiation to detect objects and measure temperature.
- The best technology for establishing low-rate wireless personal area networks (LR-WPANs) is Zigbee, known for its energy efficiency and reliable communication in limited range settings.
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Description
Test your knowledge on Industry 4.0 and the Industrial Internet of Things with this assignment-1 quiz consisting of 15 questions. Each question is worth 10 marks, testing concepts such as transducers and sensor accuracy. Refer to specific lecture slides for justifications.