Automated systems：练习题

In an automated system used for street lighting, which type of sensor is most likely used to detect when it is becoming dark?

In an automated industrial manufacturing plant, which of the following is a significant advantage over manual labor?

Which of the following best describes the feedback loop in an automated temperature control system?

In an automated system, what is the primary role of a sensor?

A moisture sensor in an automated irrigation system detects that the soil is dry. Which of the following describes the most likely action taken by the microprocessor?

Define the term actuator and state its role in an automated system.

Explain why an Analog-to-Digital Converter (ADC) is required when a sensor is connected to a microprocessor in an automated system.

In an automated greenhouse, a temperature sensor sends a value \( T \) to a microprocessor. Explain the logic used by the microprocessor to maintain a constant temperature if the required range is \( 20 \le T \le 25 \).

Explain the concept of an automated system and identify the three main hardware components that work together in a collaboration to create one.

An automated system is used to control the environment in a commercial greenhouse. If the temperature rises above \(25^{\circ}C\), a fan is turned on.

(a) Identify the sensor and actuator used in this system.
(b) Describe the process the microprocessor follows to control the fan.