dsgn129 an electrical perspective frank hamer, october 2006
TRANSCRIPT
DSGN129
• An Electrical Perspective
• Frank Hamer, October 2006
So what did the Romans do for us?
So what have Civil Engineers done for us since then?
So what have Mechanical Engineers done for us since then?
So what have Electrical Engineers done for us since then?
ELECTRICAL MECHANICAL
CIVIL
Who shapes society?
ENGINEERS
ELECTRONICS COMMUNICATIONS
COMPUTERS
Can we give systems a focus?
Industrial Robots & machines
Automotive Electrical
Domestic Electrical
Generation & Transmission
Building Services
Plain Old Telephones
Cellular
Satellite & Remote Sensing
Radar
Navigation & GPS
Future personal communications
Remote control
Personal Computers
Internet
Networks
Artificial intelligence
Television & Video
Radio
Autonomous Robots
Medical
Electrical/Electronic Communication Computer
Design concepts
New id
ea?
A customer require
ment!
The boss says so!!To make a profit ?£$
To benefit the World?
What do you want your society to look like 5 years from now?
"Now hills and vales no more distinction know, And levell'd nature lies oppress'd below; The most of mortals perish in the flood." Ovid (Dryden's tr.)
Your TV is left on standby for a year
1. How much energy does it use?
Assume typical standby current = 15 mA
Assume power dissipated = mains voltage x standby current
2. How much coal does it use?
Assume calorific value of coal = 36 MJ/Kg
Assume energy generation conversion efficiency = 50% (optimisitic)
0.015 x 240 = 3.6 Watts
3.6 Watts x 24 x 365 hours = 31.536 Kilo-Watt hours
Hence approximately 32 Units of Electricity
32 kW.hrs = 32x103x3600 Joules = 115 MJ
115 / 36 = 3.2 kg at 100% efficiency
Hence at 50% efficiency this requires 6.4 kg of coal!!
So what is the cost??
WHAT ARE ENGINEERING ETHICS
We, the members of the IEEE, in recognition of the importance of our technologies in affecting the quality of life throughout the world, and in accepting a personal obligation to our profession, its members and the communities we serve, do hereby commit ourselves to the highest ethical and professional conduct and agree: ……………………………………..
This is what one professional institute states
WHAT ARE ENGINEERING ETHICS
1. To accept responsibility in making engineering decisions consistent with the safety, health and welfare of the public, and to disclose promptly factors that might endanger the public or the environment;
2. To avoid real or perceived conflicts of interest whenever possible, and to disclose them to affected parties when they do exist;
3. To be honest and realistic in stating claims or estimates based on available data;
4. To reject bribery in all its forms;
5. To improve the understanding of technology, its appropriate application, and potential consequences;
IEEE ETHICS APPROVED AUGUST 1990
WHAT ARE ENGINEERING ETHICS
6. To maintain and improve our technical competence and to undertake technological tasks for others only if qualified by training or experience, or after full disclosure of pertinent limitations;
7. To seek, accept, and offer honest criticism of technical work, to acknowledge and correct errors, and to credit properly the contributions of others;
8. To treat fairly all persons regardless of such factors as race, religion, gender, disability, age, or national origin;
9.To avoid injuring others, their property, reputation, or employment by false or malicious action;
10. To assist colleagues and co-workers in their professional development and to support them in following this code of ethics.
IEEE ETHICS APPROVED AUGUST 1990
Ranked design criteria:
1. Spectral efficiency (simultaneous conversations/MHz/km2)
2. Subjective voice quality
3. Cost of mobile unit
4. Feasibility of a hand portable unit
5. Cost of base station
6. Ability to support new services
7. Ability to coexist with existing systems
? What about the safety of the people
WHEN IS BIO-ENGINEERING UNETHICAL ?
ENGINEERING THE PERSON ?
PAIN RELIEF LASER SIGHT CORRECTION PROSTHETIC JOINTSARTIFICIAL ORGANSNEUROLOGICAL DISORDER ‘MANAGEMENT’MENTAL DISORDER ‘MANAGEMENT’‘ENHANCING’ THE MAN-MACHINE INTERFACEBAR CODING FOR I.D. BAR CODING FOR TAGGING & TRACKING BAR CODING BUSINESS/CREDIT CONTROL OF ‘ANTI-SOCIAL’ BEHAVIOURSUPER HUMAN ?
ENGINEERING THE PERSON ?
WHEN IS BIO-ENGINEERING UNETHICAL ?
IMPLANTS
IN CURRENT USE
SYMBIOTICS
GLOBAL COMMUNICATIONS OR GLOBAL POLLUTION ?
SOCIETY’S REACTION TIMELOSS OF PRIVACYSOCIAL INTRUSIONRUDENESS; LOSS OF SOLITUDE SHARED-ATTENTION DANGERS METROPOLITAN FOCUSCONGESTED SPECTRUMSPECTRAL POLLUTIONTOO MANY UNSIGHTLY MASTSHEALTH CONCERNS
GLOBAL COMMUNICATIONS OR GLOBAL POLLUTION ?
WHERE SHOULD BASE STATION
MASTS BE SITED?
WHAT SHOULD THEY LOOK LIKE?
TELEDESIC SATELLITES 288 (840) GIVING GLOBAL INTERNET SERVICES
1012 EQUIVALENT
GLOBAL COMMUNICATIONS OR GLOBAL POLLUTION ?
Observable debris 1989
GLOBAL COMMUNICATIONS OR GLOBAL POLLUTION ?
WHAT GOES UPMUST COME DOWNBUT WHEN….WHERE
ACME REGRETS TO INFORM YOUTHAT DUE TO THE BANK HOLIDAY
THE NEXT PLANNEDCOLLECTION IS POSTPONED
INDEFINITELY
ACME JUNK - OUR OPERATIVES ECLIPSE EVERYONE
GLOBAL COMMUNICATIONS OR GLOBAL POLLUTION ?
ENGINEERING THE POWER FOR THE PLANET
NUCLEAR FISSION
PLENTIFUL SUPPLYINEXPENSIVE PRODUCTIONEFFICIENT CONVERSIONA MINIMUM OF SITES
DEFENCE SPIN OFFSSITE SAFETYSAFETY CRITICAL SYSTEMSWASTE MANAGEMENTDECOMMISSIONING
FRANKLY, I DON’T UNDERSTAND ALL THE FUSS ABOUT THIS NUCLEAR STUFF
ENGINEERING THE POWER FOR THE PLANET
RENEWABLE ENERGY…
WIND FARMS - ARE THEY CUTE OR UGLY?
DOES THIS DEPEND ON WHO & WHERE?
ENGINEERING THE POWER FOR THE PLANET
LAND BASED SEA BASED
DEFENDING THE REALM
PROTECTING DEMOCRACYTHROUGH STRONG DEFENCE
DEFENDING THE PEOPLE
CIVIL SPIN-OFFS…CONCORDE, HELICOPTERS, MOBILES, GPS,
OR ..DEALING IN DEATH
£££ £££
THEY MADEME DO IT!
DEFENDING THE PEOPLE
THE INFORMATION AGE
THE COMMUNICATIONS REVOLUTION e-MAIL THE WORLDINFORMATION - POWERPEOPLE POWEROVERCOMING PROPAGANDAOPEN GOVERNMENT
INFORMATION RICH/POORINFORMATION OVERLOADCOMPUTER-BASED EDUCATIONVIRTUAL LIVESMICROSOFT - GLOBAL DOMINATION
UNCENSORED GLOBAL COMMUNICATIONS
THE INFORMATION AGE
UNCENSORED GLOBAL COMMUNICATIONS
ARE YOU ADDICTED TO THE INTERNET?
THE INFORMATION AGE
UNCENSORED GLOBAL COMMUNICATIONS
SHOULD CHILDREN STAY-IN
OR GO OUT TO PLAY
UNCENSORED GLOBAL COMMUNICATIONS 20 MILLION PEOPLE VISIT SEX SITES EVERY MONTH
THE INFORMATION AGE - COMPUTER CUPBOARD PERVERTS
200,000 ADDICTED TO INTERNET PORN
Ani Bod – An animated mannequin that combines sound, an internally projected image of a face and three-way head movement
WHO DECIDES WHETHER IT’S ETHICAL OR NOT ?
Design concepts
STEW
ARDSH
IP
COMPETENCE
RESPONSIBILITY
???
YOU DECIDE !