IB Computer Science Topic 7.1.2 Real-world Examples of Control System Revision Notes (HL)

IB Computer Science Topic 7.1.2 Real-world Examples of Control System Revision Notes (HL) | RevisionDojo

Examples of Control Systems

Here are some examples of control systems you should be aware of.

Automatic Doors

Functionality: Open and close doors automatically when motion is detected.
Components:
1. Motion Sensors: Detect movement using infrared or microwave signals.
2. Processors: Decide when to open or close the doors.
3. Actuators: Physically move the doors.
Benefits:
1. Energy Efficiency: Prevents doors from being left open, reducing heating or cooling loss.
2. Accessibility: Offers easy access for the elderly and individuals with disabilities.

Note

Advanced automatic doors use photocell sensors to detect obstructions, preventing the doors from closing on people or objects.

Heating Systems

Functionality: Maintain a desired temperature by automatically adjusting heating or cooling.
Components:
1. Temperature Sensors: Measure the current temperature.
2. Processors: Compare the current temperature to the desired setpoint.
3. Actuators: Turn the heating or cooling system on or off.
Benefits:
1. Energy Conservation: Automatically adjusts to maintain the desired temperature, reducing waste.
2. Remote Control: Smart systems can be controlled via the internet, allowing users to adjust settings from anywhere.

Common Mistake

Do not forget about safety features: Interrupt signals stop the elevator if doors are obstructed or if the load exceeds safe limits.

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

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Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Examples of Control Systems

Here are some examples of control systems you should be aware of.

Automatic Doors

Functionality: Open and close doors automatically when motion is detected.
Components:
1. Motion Sensors: Detect movement using infrared or microwave signals.
2. Processors: Decide when to open or close the doors.
3. Actuators: Physically move the doors.
Benefits:
1. Energy Efficiency: Prevents doors from being left open, reducing heating or cooling loss.
2. Accessibility: Offers easy access for the elderly and individuals with disabilities.

Note

Advanced automatic doors use photocell sensors to detect obstructions, preventing the doors from closing on people or objects.

Heating Systems

Functionality: Maintain a desired temperature by automatically adjusting heating or cooling.
Components:
1. Temperature Sensors: Measure the current temperature.
2. Processors: Compare the current temperature to the desired setpoint.
3. Actuators: Turn the heating or cooling system on or off.
Benefits:
1. Energy Conservation: Automatically adjusts to maintain the desired temperature, reducing waste.
2. Remote Control: Smart systems can be controlled via the internet, allowing users to adjust settings from anywhere.

Common Mistake

Do not forget about safety features: Interrupt signals stop the elevator if doors are obstructed or if the load exceeds safe limits.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

1. System fundamentals2 subtopics

2. Computer organization1 subtopic

3. Networks1 subtopic

4. Computational thinking, problem-solving and programming3 subtopics

5. Abstract data structures (HL)1 subtopic

6. Resource management (HL)1 subtopic

7. Control (HL)1 subtopic

A. Databases4 subtopics

B. Modelling and simulation4 subtopics

C. Web science6 subtopics

D. Object-oriented programming (OOP)4 subtopics

IB Computer Science 7.1.2 Real-world Examples of Control System Notes

1. System fundamentals2 subtopics

2. Computer organization1 subtopic

3. Networks1 subtopic

4. Computational thinking, problem-solving and programming3 subtopics

5. Abstract data structures (HL)1 subtopic

6. Resource management (HL)1 subtopic

7. Control (HL)1 subtopic

A. Databases4 subtopics

B. Modelling and simulation4 subtopics

C. Web science6 subtopics

D. Object-oriented programming (OOP)4 subtopics

Examples of Control Systems

Automatic Doors

Heating Systems

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Examples of Control Systems

Automatic Doors

Heating Systems

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account