Industry 4.0 & IIoT Assignment 1 Quiz

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Questions and Answers

What is the primary function of a transducer?

Detecting only energy

Digital communication

Computer processor part

Converting energy from one form to another (correct)

In sensor technology, what does 'sensor accuracy' specifically indicate?

The smallest detectable input change

Sensor's response time

The sensor's range

Correctness of output compared to a standard value (correct)

What defines an 'active sensor' in the context of sensing technology?

Operates without any energy consumption

Can only sense physical changes

Independently senses the input (correct)

Operates without an external power source

In IIoT systems, what is the main role of an 'Actuator'?

Converts signals into physical action Signup and view all the answers

Zigbee technology is popular for which of the following?

Low power, short-range wireless communication Signup and view all the answers

When compared to passive sensors, what capability distinguishes active sensors?

Independently sensing input Signup and view all the answers

What is the primary function of IEEE 802.15.4 in IoT?

To specify the protocols for low-rate wireless personal area networks Signup and view all the answers

Which of the following is a characteristic of 6LoWPAN?

Enabling IPv6 packets over low-power wireless networks Signup and view all the answers

What is the primary application of Near Field Communication (NFC)?

Short-range wireless interaction between electronic devices Signup and view all the answers

Which type of actuator works on the principle of compression and decompression?

Hydraulic Actuators Signup and view all the answers

What is the significance of ISA 100.11a in IIoT?

Focuses on wireless network technology for industrial automation Signup and view all the answers

Which of the following is NOT a characteristic of 6LoWPAN?

High-power industrial networks Signup and view all the answers

Which technology is best suited for industrial communication?

Wireless HART Signup and view all the answers

What is the maximum data rate possible in Wireless HART?

250 kb/s Signup and view all the answers

Which Quality of Service (QoS) level in MQTT is also known as 'Exactly once'?

QoS 2 Signup and view all the answers

Which architecture does the CoAP work on?

UDP Signup and view all the answers

Which type of sensor is an infra-red sensor?

Optical Sensor Signup and view all the answers

Which technology is best suited for establishing low-rate wireless personal area networks?

Zigbee Signup and view all the answers

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.