Control TechnologySTART

What is control

technology?

What is this diagram called?

In which program have you used these before?

Lets Go!

Lesson Objectives

• To understand – what control technology is – What flow charts are, including their individual components

– How flow diagrams are used everyday in control technology systems

Control Technology

• Control technology is allows devices to be programmed to respond to different circumstances

• A good example of this is a kettle. A sensor will record the temperature of the water. When the water is boiling, the kettle automatically turns itself off.

• Can you think of any other examples?

Prior Learning

• You have already studied Control Technology in year 7 using Crocodile

• You should already know how to use flow charts

Flow Charts

Start/end

Process

Decision – Yes/no?

Input / Output

Flow

Terminator

Process

Decision

Data

Arrow

START

Switch kettle on

Boil water

Is the water at boiling point?

End

Y

N

Terminator – Starts the flow diagram

Input/Output – If you are doing something to

trigger a reaction (INPUT), or the

reaction that occurs (OUTPUT)

Process: When an action is being carried out.

Decision: Asks a question and has 2 responses (YES/NO)

Terminator – Ends the flow diagram

Task 1:

• Flow Chart Symbols

• Go to Common K>ICT>Year 8>FLOWOL> Lesson 1

• Open and Save the file called “Flow Chart Symbols”

AnswersSymbol Name Description

Terminator Starts and stops the flow chart

Process When an action is being carried out

Decision Asks a question and has 2 responses

(YES/NO)

Input / Output

If you are doing something to trigger a reaction (INPUT), or the reaction that

occurs (OUTPUT)

Arrow Shows the flow of data in the flow

diagram

Flowol

• Go to Start>All Programs>Flowol

• We will be using this program to simulate how control technology is used in everyday life

Mimics

• In Flowol there are several mimics that you can use. These are simulations that we can control using flow diagrams.

• Click USE MIMIC >Zebra Crossing

This is the mimic/simulation

The different inputs and outputs that we can control appear

here. In this simulation there is only one light.

Task 1:

• Drag and drop the symbols on the left to make the light flash on and off.

Task 2:

• What is wrong with the simulation?

• How can we make it better?

1.Add a delay between the flashes

2.Loop it around so it happens continuously.

Extension:• Save your zebra crossing in your Unit _ Folder

• Open a new flowol document and open the Crossing Patrol mimic.

This time you have 2 outputs to control. Try and make them flash on and off simultaneously