IOT POLY ENGINEERING 2-4 Classifying as Human to Human, Human to Machine, etc. Goals (6), inputs...

IOT

POLY ENGINEERING2-4

• Classifying as Human to Human, Human to Machine, etc.

• Goals (6), inputs (1), processes (6), outputs (1), feedback (varies)

• Radio and telephone operation• Sine wave modulation types: PM, AM, FM• Terminology:

– Information, knowledge, data, etc.

Com

mun

icati

on T

echn

olog

yQuiz Tomorrow

IOT

POLY ENGINEERING2-2

– Assignment should be set up similar to our example.

– Also, include a labeled diagram.

LETTER THIS ASSIGNMENT1. Classify the following as

2. Radio, T.V., Cell Phone, Internet, GPS, Remote Control

3. Explain your classification.4. Analyze the components of each of those 6

communication technologies, including the goal, source, encoder, transmitter, receiver, decoder, storage, retrieval, and destination.

Homework - REMINDER

1 Info sheet required for each of the required 6 communication technologies: Radio, T.V., Cell Phone, Internet, GPS, Remote Control

DUE FRIDAY 10/3

Do not leave any question in reader’s mind

IOT

POLY ENGINEERING2-4

– Print Graphic Communication Visual, lingual messages that include printed media

– Photographic Communication Using photographs, slides, or motion pictures to

communicate a message– Telecommunications

Communicating over a distance– Technical Graphic Communication

Specific information about a product or its partsSize and shape, how to install, adjust, operate, maintain,

or assemble a device

Classes of Communication Technology

IOT

POLY ENGINEERING2-4

1. Print Graphic CommunicationNewspaper, poster, brochure, billboard

2. Photographic CommunicationPhotographs, slides, motion pictures

3. TelecommunicationRadio and t.v. broadcasts, computers, mobile and satellite

4. Technical Graphic CommunicationEngineering drawings (sketches, drafting, CAD)

Classes of Communication Technology

IOT

POLY ENGINEERING2-4

1. Print Graphic Communication 2. Photographic Communication 3. Telecommunications4. Technical Graphic Communication

Matching Classes

Telephone HeadphonesBook ComputerVideotape Remote ControlDVD PaintingMagazine CameraPhotograph Comic StripNewspaper Billboard

312,32,3121

333221,21,2

IOT

POLY ENGINEERING2-4

– Major Processes:• Relief

– A modeled work that is raised (or lowered) from a flat background.

– Cuneiform by the Sumerians ~6000 years ago. – Wood block printing ~200 C.E.– Movable type printing ~1040 C.E. (Gutenberg ~1450)– Intaglio (in-tal-yo) ~1430– Rotary printing press ~1843

• Lithography (offset printing) ~1796– The source and destination are not on raised surfaces– Grease and water do not readily mix– A chemical process– Most modern books and newspapersPr

int G

raph

ic C

omm

unic

ation Intaglio

(in-tal-yo)

1. Depressions cut into printing plate

2. The plate is covered in ink

3. Excess ink is removed from surface

4. Paper placed on plate and compressed

5. Paper is removed and ink has been transferred

By 593 A.D., the first printing press was invented in China, and the first printed newspaper was available in Beijing in 700 A.D. It was a woodblock printing. And the Diamond Sutra, the earliest known complete woodblock printed book with illustrations was printed in China in 868 A.D. And Chinese printer Bi Sheng invented movable type in 1041 A.D. in China.

Low ReliefHigh Relief

Communication Technology

Cuneiform

IOT

POLY ENGINEERING2-4

• Screen Printing (~1000 C.E., China; 1907 England)– Mainly billboards, package labels, fabric designs– Uses a woven mesh (a screen) to support an ink

blocking stencil. – The stencil forms open areas of mesh that transfer ink

as a sharp-edged image onto a substrate. – A roller or squeegee is moved across the screen

stencil forcing or pumping ink past the threads of the woven mesh in the open areas.

• Electrostatic (1938 / 1960s)– Photocopier, Laser Printer– Opposite charges attract

• Ink Jet (1980s)– Use a series of nozzles to spray ink directly on paperPr

int G

raph

ic C

omm

unic

ation


IOT

POLY ENGINEERING2-4

• Photographic Communication – The process of using photographs to communicate a

message– Photography – capturing light on a light-sensitive

material such as film or electronic sensor– As a usable process, 1820s– Includes photographs, slides, and motion pictures

Phot

ogra

phic

Com

mun

icati

onCommunication Technology

IOT

POLY ENGINEERING2-4

• Telecommunication– Communicating over a distance

Tele – Greek, “far off” Communicare – Latin, “to share”– Rely on the principles of electricity and magnetism – 2 types:

• Hardwired systems (telephone, cable, fiber-optic)• Broadcast systems (radio and t.v., mobile phones)

– Point-to-point: • One transmitter and one receiver

– Broadcast:• One powerful transmitter to numerous receiversTe

leco

mm

unic

ation

sCommunication Technology

IOT

POLY ENGINEERING2-4

– Smoke signals and drums– Chains of beacons (Middle Ages)

• Navigation signals• Enemy troops approaching

– Homing pigeons • Carrier pigeons used as early as 1150 in Baghdad• Olympic victors, Greece; Stock options, Europe

– Optical telegraph (semaphore, 1792, France)• Towers with pivoting shutters• Information encoded by the position of the

mechanical elements

Tele

com

mun

icati

ons


IOT

POLY ENGINEERING2-4

– Telegraph (mid 1830s)• First instrument used to send messages by means of wires

and electric current• A device interrupts the flow of a current through a wire• Uses shorter and longer bursts of current to represent

letters• Device at receiving end converted electrical signal into

clicks• Operator/mechanical printer converted clicks into words• Telegram – wires over land• Cable – wires under water

– Telephone (1876 – Bell and Gray)• Greek: tele – far, phone – sound

Tele

com

mun

icati

ons


IOT

POLY ENGINEERING2-4

Tele

com

mun

icati

ons

Play Morse Code Video

IOT

POLY ENGINEERING2-4

– Broadcast• Radio (1893 – Tesla, 1901 – Marconi)• Television (1925)

– Greek: tele – far, Latin: visio – seeing – 4 main parts (cathode ray tube)– Electron gun fires 3 beams – Steering coils move electron beam across screen – Phosphorus screen has over 200,000 pixels– Glass tube holds it all together– Signals are broadcasted like radio signalsTe

leco

mm

unic

ation

sCommunication Technology

IOT

POLY ENGINEERING2-4

– Computers– Internet– Cellular– Local Area Networks– Satellite Communication

Tele

com

mun

icati

ons


IOT

POLY ENGINEERING2-4

Tech

nica

l Gra

phic

Com

mun

icati

onCommunication Technology

– Engineering Drawing / Technical Illustration• Communicates specific information

– Size and shape– How parts are assembled– How to install, operate, adjust, maintain a device

• Hand methods– Sketching– Drafting

• Computer methods– CAD (AutoCAD, Sketchup, Inventor, ProEngineer, etc.)

IOT

POLY ENGINEERING2-1

– Goals Inform Persuade Entertain Control Manage Educate

– Inputs Source of Communication

– ProcessesEncoder Transmitter Receiver Decoder Storage Retrieval

– OutputsMessage to the destination

– Feedback and ControlReversing the communication line

INPUTS PROCESSES

OUTPUTS

GOALS

GOALS

FEEDBACKControl


Not always

IOT

POLY ENGINEERING2-1

INPUTS PROCESSES

OUTPUTS

GOALS

GOALS

FEEDBACKControl


Transmitted Communication

Encoder Transmitter

Receiver Decoder Storage

Retrieval

Received Communication

Input Process Output

SOURCE DESTINATIONTECHNOLOGY

Inform Persuade Entertain Control Manage Educate

IOT

POLY ENGINEERING2-2

1. A device that changes a message into a form that can be transmitted

2. A device that sends a signal (i.e., encoded message)3. A device that acquires a signal (i.e., encoded message)4. A device that changes a coded message into an

understandable form

Decoder

Encoder

Receiver

Transmitter

Data

Match the statements with the correct term below:

IOT

POLY ENGINEERING2-2

Communication

Knowledge

Information

Storage

1. Unorganized facts2. Organized data3. Information applied to a task4. The sending and receiving of information

Data

Match the statements with the correct term below:


IOT

POLY ENGINEERING2-2

Radio:

Pulse Modulation: turn the voltage (sine wave) on/off (Morse Code)

Amplitude Modulation: vary the amplitude (peak-to-peak) voltage

Frequency Modulation: vary the frequency (speed)

PM

AM

FM

Encoder: Devices that convert sound and information into a modulated sine wave


IOT POLY ENGINEERING 2-4 Classifying as Human to Human, Human to Machine, etc. Goals (6), inputs...

Documents

Transcript of IOT POLY ENGINEERING 2-4 Classifying as Human to Human, Human to Machine, etc. Goals (6), inputs...