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CONTROLS The Age of Intelligent Systems Has Arrived …I REALLY LOVE MY JOB !. Armando A. Rodriguez Professor of Electrical Engineering Intelligent Embedded Systems Laboratory (IeSL) GWC 352, aar@asu.edu. ASU EE Pathways Seminar Thursday, October 17 th 2013 Arizona State University.
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CONTROLS The Age of Intelligent Systems Has Arrived …I REALLY LOVE MY JOB ! Armando A. Rodriguez Professor of Electrical Engineering Intelligent Embedded Systems Laboratory (IeSL) GWC 352, aar@asu.edu ASU EE Pathways Seminar Thursday, October 17th 2013 Arizona State University http://aar.faculty.asu.edu
Revolutionary Times For the first time in history, amazing new computing technologies are becoming accessible to the masses! - Intelligent Systems Are Coming…. - Intelligent Systems Require Feedback… - This is what controls is about!
Acknowledgements • Sponsors • White House, NSF, NASA, DARPA, AFOSR, WAESO • CEINT, Honeywell, Intel, Microsoft, Boeing, Xilinx, SEMY, Mathworks, Tektronix, AT&T • My Students!
Outline • What Is Controls? • Where Is Controls Used? • Courses • Controls Faculty • Job Opportunities • Ongoing Technological Revolution
di do e u y r K P Plant Controller n What Is Controls? disturbances error control desired output actual output sensor noise • Design K s.t. closed loop system exhibits stability and high performance. (Want y = r) - P : Physical System/Process to be Controlled - K : System to be Designed
Example: Vehicle Cruise Control • P - Vehicle • r - Speed reference command (desired speed) • y - Actual speed • u - Fuel flow to engine • K - Controller • Want y = r • Actual speed to follow speed commands
Issues • Nonlinear Dynamics • Ordinary/partial differential equations • Saturating actuators (hard control limits); Rate limits • Noninvertible Dynamics • Instabilities (unbounded solutions, characteristic roots in open right half plane) • Time delays and other lag effects • Uncertainty – only nominal models are available • Dynamic • Actuator and sensor dynamics • High frequency parasitics • Structural modes (e.g. flexible spacecraft); Time delays (e.g. CVD furnace) • Parametric: Masses, aerodynamic coefficients, friction coefficients, etc. • Stochastic Disturbances and Sensor Noise • Amplitude, mean, variance, and spectral content • Digital Implementation Issues • Sampling and actuation rates • Analog-to-digital and Digital-to-analog - speed, resolution, quantization/reconstruction error • Measurement noise, time delays (phase lag), and nonlinearities Research: Need Systematic Control System Design Methodology
Control System Design Process • Modeling, Simulation, Analysis - Determination of Realistic Design Specifications • Design Control System (via Model-Based Optimization) - typically on the basis of linearized models - gain scheduling (“glue” control design together) • Evaluate design using hi-fidelity simulator • Design Implementation (Rapid prototyping) - computer, microprocessor, DSP, FPGAs • Hardware Evaluation NOTE: Control system design process is highly iterative!
CLAIM: Controls Is Everywhere……It is InherentlyMultidisciplinary ... it touches all disciplines…
What Needs To Be Controlled? • Acoustic - acoustic cancellation for a concert hall; intelligent hearing devices • Aerospace - altitude hold system for aircraft; all-weather landing system; control of remotely piloted vehicles; launch vehicles; control of reconfigurable aircraft • Automation and Manufacturing – coordination of autonomous robots; resource allocation within a semiconductor fabrication facility • Biological - neuromuscoloskeletal control systems; cardiovascular control systems; disease and epidemic containment
What Needs To Be Controlled? • Capital Investment - variable risk securities portfolio risk/return; asset management • Defense - high performance fighters; tactical missiles; ballistic missile theatre defense; guidance and navigation; combat assault helicopters • Ecological- global warming and ozone depletion policy • Economics- money supply and interest rate management • Electrical/Chemical - diffusion furnaces; semiconductor processes; read/write head control for storage • Mechanical - active suspension for mobile laboratory • Materials - control of smart composite (deformable) materials
What Needs To Be Controlled? • Medical - control of telemedical robotic systems (e.g. microscope positioning and vibration suppression) for precision surgery • Nuclear - temperature control for nuclear reactor • Ocean - depth control for underwater exploration vehicle; submarine • Public Policy- resource allocation for urban planning and homeland security • Space Based Surveillance - pointing control system for telescopic imaging, weather, surveillance, monitoring system; satellites • Space Exploration – interplanetary probes, crew exploration vehicle, robotic vehicles (e.g. Mars rovers) • Structural - active earthquake control for skyscrapers
Pretty Amazing List!Does the list help you understand what control engineers do?
Control Courses Undergraduate Courses Fundamentals: Circuits 1: EEE202 MAT: ODE, Laplace, Linear Algebra Signals and Systems: EEE 203, 304 (Frequency domain) Classical Feedback Theory: EEE 480 (Basic concepts, simple designs) Computer Controlled Systems: : EEE 481 (Discrete, embedded control) Graduate EE Courses: Linear (582) & Nonlinear (586) Systems, Transform Theory (550) Robust Multivariable (588), Optimal (587), Neural Nets (511) Filtering of Stochastic Processes (581), Adaptive Control (686) Other Courses: System Identification, Applied Optimization, Numerical Analysis MSE Exam: 480-481-581-582-586-587; + selection from 588, 511
Get Your MS……it will open many doors!…more $$$…flexibility…will permit you to work on much cooler problems!!!
Control Systems Faculty • EE Faculty: Lai, Rodriguez, Si, Tsakalis • Topics: System Modeling, Control Systems Design, Neural Networks, Adaptive and Learning Systems, Fault Detection, Real-Time Control Applications • Applications: Aerospace (aircraft/missile design/control, optimal path planning) Semiconductor Manufacturing (process control, scheduling) Power Systems (design, generation, distribution, control) Biomedical Applications (prosthetics, neuroscience, design, control) Robotics (design, control, path planning)
Job Opportunities • Aerospace: Boeing, Lockheed Martin, NASA, Orbital Sciences, Raytheon, United Technologies, etc. • Automotive: Chrysler, Ford, GM, etc. • Chemical: Exxon Mobil, Pfizer, Proctor and Gamble, etc. • Communications: AT&T, Verizon, etc. • Energy: General Electric, Honeywell, SRP, etc. • Financial: Goldman Sachs, JPMorgan, etc. • Medical: Medtronics, etc. • Networks: Cisco, etc. • Robotics: Boston Dynamics, Caterpillar, Sandia, etc. • Semiconductors: AMD, Applied Materials, Intel, IBM, TI, etc. • Software: MathWorks, Microsoft, etc. • Etc… ...think multidisciplinary…do NOT close doors unnecessarily!
New Technologies are Coming! • New Propulsion Technologies • Smart Materials and Structures • Miniature Electromechanical Systems (MEMs), Nanotechnology, Spintronics • Optical, Biological, and Quantum Computing Machines • Distributed Computation • New Sensing and Actuation Technologies • Regenerative and Personalized Medicine • System-on-a-Chip Solutions
2012 (Nature) – IBM spintronics memory breakthrough 10-11-2013 – “Iron Man” Tactical Assault Light Operator Suit (Talos) - US Army, MIT, nanotechnology, msec liquid armour, on board computer, enhanced situational awareness, night vision, enhanced strength, walk through stream of bullets, life support, etc. USAF Flapping Wing MAVs: http://www.youtube.com/watch?v=_5YkQ9w3PJ4 Prosthetic Arm: http://www.youtube.com/watch?v=_qUPnnROxvY
SOME VIDEOS Renewable Energy http://videos.howstuffworks.com/science-channel/34234-ecopolis-biofuel-video.htm (Algae, goto 1:20) http://www.youtube.com/watch?v=1cysaOnlv_E (20% Renewable Energy by 2020) http://www.youtube.com/watch?v=-XSr5BhAXSw (ASU Biodesign Institute) http://www.youtube.com/watch?v=oy8dzOB-Ykg (Hydrogen fuel cells for cars) Boston Dynamics’ BIG DOG http://www.youtube.com/watch?v=W1czBcnX1Ww NASA X-43A Scramjet-Powered Hypersonic Vehicle – Mach 7, 10 (2004) http://www.youtube.com/watch?v=IiBsD-cafH8 Boeing 787 Dreamliner http://www.bbc.co.uk/news/business-10635444 Carbon Nanotubes http://www.youtube.com/watch?v=zQAK4xxPGfM http://vega.org.uk/video/programme/71 http://www.youtube.com/watch?v=ikYhyjPjKBs Regenerative Organs/Medicine http://interactmd.com/content/organ-regeneration-talk-video (goto 11 min) http://www.youtube.com/watch?v=M7eM3zOffI4 Personalized Medicine http://www.technologyreview.com/video/?vid=524 Supercomputers http://www.datacenterknowledge.com/most-popular-supercomputing-videos/ (goto 55sec) Electronic Devices http://www.youtube.com/watch?v=xPIbGq634yU (Spintronics) Intellectual Property http://www.youtube.com/watch?v=9Yp_Xj6YshM
Specific Areas of Research • Optimization Based Control System Design for • MIMO Nonlinear Systems • Distributed Parameter Systems • Systems with Multiple Hard Nonlinearities • Sampled Data and Multi-Rate Systems • Application Areas • Aerospace and robotic systems, space structures, semiconductors, low power electronics, advanced vehicles and transportation systems
Research Focal Areas • Modeling, Simulation Animation, and Real-Time Control (MoSART) • Flexible Autonomous Machines operating in an uncertain Environment (FAME) • Intelligent Embedded Systems • Integrated Real-Time Health Monitoring, Modeling, and Fault-Tolerant Control • Fault detection, classification, and control law adaptation • Reconfigurable hardware (FPGAs)
Select Control Projects • Semiconductor Manufacturing Facility (e.g. fab scheduling) • Molecular Beam Epitaxy (MBE), Chemical Vapor Deposition (CVD) • Missile Guidance and Control Systems (e.g. Patriot, EMRAAT) • High Performance Jets (e.g. JSF, High Speed Civil Transport) • Rotorcraft (e.g. Blackhawk, Apache, TLHS), Tilt-wing Rotorcraft (TWRC) • Unpilotted Air Vehicles (UAVs), Micro Air Vehicles (MAVs) • Scramjet-Powered Hypersonic Vehicle Control and Design • Jet Engines (e.g. GE turbofan) • Submarines • Automotive (e.g. cruise, engine emissions, suspension, noise cancellation) • Flexible Space Structure (e.g. SPICE: Laser Weapon, Telescope) • Satellites, Spacecraft, and space probes (e.g. JIMO) • Intelligent Robotic Systems (e.g. Astronaut Personal Satellite Assistant -PSA) • Intelligent Fault-Tolerant Embedded Systems • Power Conversion (e.g. DC-DC converters) • Fishery & Irrigation System Management, Sustainable Systems
A Message • Modeling and Simulation is used everywhere! • You don’t build a • 787 Dreamliner • Pentium Chip • F22 Raptor, Joint Strike Fighter, etc… • Space Shuttle without investing a few billion in M&S!
Modeling and Simulation is just getting started!The Age of Intelligent Systems is Upon Us!
New Technologies are Coming! • New Propulsion Technologies • Smart Materials and Structures • Miniature Electromechanical Systems (MEMs), Nanotechnology, Spintronics • Optical and Biological Computing Machines • Distributed Computation • New Sensor and Actuation Technologies • Regenerative and Personalized Medicine
Intel • Chandler, AZ • Allocation of Resources within a Reentrant Semiconductor Manufacturing Line (e.g. Pentium Fab) • Maximize $$ in presence of machine/customer/process uncertainty • Minimize average throughput time • make promises • Minimize variance of throughput time • keep promises
Molecular Beam Epitaxy (MBE) • ASU • Method for depositing single crystals • Source material heated to produce evaporated beam of particles - travel through ultra-high vacuum onto substrate • Slow deposition rate ~1000 nm/hr • Used for growing III-V semi crystals • Thin filmed semiconductor materials • Control thickness – single layer of atoms
Thermal Management ofMulti-Core Processors • Intel • Maximize performance per watt • Dynamic voltage and frequency scaling (DVFS) • Increase voltage or frequency (CPU throttling) to increase performance • In progress
Hypersonic Vehicle Design • NASA Ames, Langley, Glenn • Mach 5-15 • unstable, aero-thermo-elastic-propulsive, nonlinear coupling/dynamics • Two-stage-to-orbit (TSTO) vision
Honeywell Transport Systems • Glendale, AZ • High Speed Civil Transport (HSCT) • Mach 2.2, 300+ passengers • Automatic Landing System • Issues: • Long, thin, flexible
Integrated Real-Time Health Monitoring, Modeling, and Controls for Future NASA Missions • Next generation general “avionics” (C4) box for • Crew exploration vehicle • Rovers • Astronaut life support
Integrated Real-Time Health Monitoring, Modeling, and Controls for Future NASA Missions • Partners • NASA Ames, JPL, Kennedy Space Center • Rockwell, Nuvation • Carnegie Mellon, Iowa State • Fault Tolerance • 3 Levels: 1. Chip level - Reconfigurable fault-tolerant hardware (FPGAs) 2. Board level 3. System/Actuator/Sensor level
NASA’s Astronaut Personal Satellite Assistant (PSA) • NASA Ames • Designed to hover around spacecraft • Accelerometers, gyros, Video, infrared • Monitors critical parameters/signals (e.g. air temperature and composition, supplies) ; detect structural/tile flaws • Assists astronauts with day-to-day tasks, reduce work load, communicates with Mission Control
NASA Jupiter Icy Moons Orbiter (JIMO) • Explore 3 planet-sized moons of Jupiter - Callisto, Ganymede and Europa • May harbor vast oceans beneath icy surfaces; Date: 2015 or later??? • Galileo spacecraft found evidence that Jupiter's large icy moons appear to have 3 ingredients considered essential for life: • water, energy, other essential chemical contents • Evidence suggests melted water on Europa in contact with surface (geologically recent times); might still lie close to surface • Issues: • Significant mass changes • Flexible structure • Nuclear reactor • Precision pointing