Transcript 2-1 Intro to Communication 1

Communication Technology
November 7, 2011
Main Ideas:
1. Information is an essential resource
for design (1 of the 7 inputs).
2. Communication technology
significantly impacts the way we live.
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POLY ENGINEERING
Into which column does each of the technologies below go?
Alarm Clock
Thermostat
Telephone
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T.V. Remote
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POLY ENGINEERING
Into which column does each of the technologies below go?
Alarm Clock – communicates the time (with a sound) to a
human.
Thermostat – measures the temperature and turns the
furnace on or off.
Telephone – a human speaks in one side, a human hears it
on the other.
T.V. Remote – a human pushes a button, a signal is send to the
television.
Into which column does each of the technologies below go?
Alarm Clock – communicates the time (with a sound) to a
human.
Thermostat – measures the temperature and turns the
furnace on or off.
Telephone – a human speaks in one side, a human hears it
on the other.
T.V. Remote – a human pushes a button, a signal is send to the
television.
ASSIGNMENT 1
Instructions: Create the following chart. Fill it in with at least 8
entries in each column. Example technologies are on
the next screen. HINT: with any technology, ask yourself
what is communicating (human or machine) and what is
getting the communication.
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POLY ENGINEERING
ASSIGNMENT 1 - examples
Text Msg.
T.V.
AutoCAD
Video Game
Controller
GPS
Car Alarm
Motion
Sensor Light
Traffic Light
Remote Car
Locking
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NOTE: Many technologies fit into multiple columns depending on
how you look at it.
POLY ENGINEERING
Communication Technology
Technology has changed the nature of
communication in our society.
What are some ways contemporary
communication impacts your life?
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POLY ENGINEERING
Communication Technology
Worldwide market of cell phone users
has outstripped all predictions.
A world population of 6.9 Billion
How many cell phones?
First public trials of cell phone use in 2-1
1978
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POLY ENGINEERING
Cell Phone Users Worldwide
At end of 2007:
3.3 Billion
48% of World Population
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POLY ENGINEERING
Cell Phone Users Worldwide
At end of 2007:
Is this exponential or
linear?
3.3 Billion
Does it look like a
line?
(It is exponential).
48% of World Population
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POLY ENGINEERING
Cell Phone Users Worldwide
What is
Communication
Technology?
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POLY ENGINEERING
Communication Technology
GOALS
Control
FEEDBACK
INPUTS
PROCESSES
OUTPUTS
GOALS
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POLY ENGINEERING
Communication Technology
– Goals
Inform Persuade Entertain Control Manage Educate
– Inputs
Source of Communication
– Processes (in this order)
Encoder Transmitter Receiver Decoder Storage Retrieval
– Outputs
Message to the destination
Not always
– Feedback and Control
Reversing the communication line
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POLY ENGINEERING
Communication Technology
Inform
Persuade
Entertain
Control Manage Educate
GOALS
IOT
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POLY ENGINEERING
Communication Technology
Inform
Persuade
Entertain
Control Manage Educate
SOURCE
Input
Transmitted
Communication
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POLY ENGINEERING
Communication Technology
Inform
Persuade
Entertain
Control Manage Educate
SOURCE
TECHNOLOGY
Input
Process
Transmitted
Communication
Encoder
Transmitter
Receiver
Decoder
Storage
Retrieval
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POLY ENGINEERING
Communication Technology
Inform
Persuade
Entertain
Control Manage Educate
SOURCE
TECHNOLOGY
DESTINATION
Input
Process
Output
Transmitted
Communication
Encoder
Transmitter
Receiver
Decoder
Storage
Retrieval
Received
Communication
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POLY ENGINEERING
Telephone Communication
One of the simplest devices in your house
Microphone – converts sound energy of voice into electrical energy (encodes)
Wires – the electrical energy travels from your phone, via exchanges, to your friend’s
Receiver – friend’s earpiece speaker converts the electrical energy back to sound
Answering Machine – friend isn’t home, and this machine stores your communication
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POLY ENGINEERING
Play Button – friend gets home, presses play, hears your recorded voice
Telephone Communication
One of the simplest devices in your house
Input
You speak into
the microphone
Processes
Encoder
Transmitter
Receiver
Decoder
Storage
Retrieval
Output
Friend hears
voice in receiver
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POLY ENGINEERING
Telephone Communication
One of the simplest devices in your house
What part of this
technology system is an
example of Human to
Machine communication?
IOT
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POLY ENGINEERING
Telephone Communication
One of the simplest devices in your house
What part of this
technology system is an
example of Human to
Machine communication?
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POLY ENGINEERING
ASSIGNMENT 2
Example Follows
LETTER THIS ASSIGNMENT
Radio, T.V., Cell Phone, Internet, GPS, Remote Control
For the 6 above technologies analyze the components
(the goal, source, encoder, transmitter, receiver,
decoder, storage, retrieval, and destination). You will
need to research the devices in order to complete this
assignment. Provide references.
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ASSIGNMENT 2 – Example
Radio:
Goal: Inform
Persuade
Entertain
Control
Manage
Educate
Source: Sounds and Information
Encoder: Devices convert sound and info into modulated sine waves
Transmitter: Antennas radiate the radio waves into air (medium)
Receiver: Antennas capture the radio waves from air
Decoder: Devices convert radio waves back into sounds and data
[Storage: Recording devices store sounds and data for playback]
[Retrieval: Stored data can be accessed and played]
IOT
Destination: Consumers’ ears and eyes
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POLY ENGINEERING