Briefing for EE2001 Design Project AY 2008-2009 Special Term EE2001 Committee.

Briefing for EE2001 Design Project

AY 2008-2009

Special Term

EE2001 Committee

EE2001 Briefing Presentation – 11 May 2009 – LT6 2

Outline

• Aims and Objectives• Learning Objectives• Learning Outcomes• Project Guidelines & Assessment Criteria• Project Theme – Healthcare Systems• Project Proposals• Project Implementation Schedule• EE2001 Committee Members


Aims and Objectives

• This module aims at providing students with design and hands-on experience in developing electronic circuits and systems involving both hardware digital and analog techniques together with software programming.

• System integration between various sub-systems involving hardware and software components is an important objective of this module.


Learning Objectives

Core Technical Skills

• Microcontroller programming (S/W)• Analog and digital hardware

electronic circuits design (H/W) • H/W & S/W system integration• PCB design• System debugging• Production specifications

development• Project documentation


Learning Objectives (cntd.)

Soft skills

• Project planning & scheduling

• Team work

• Peer feedback

• Project presentation skills


Learning Methodologies• Project-based learning

Learning is achieved by actual participation and implementation of an electronic project with hands on experience both in H/W, S/W and system integration.

Students are encouraged to explore and do beyond what has been taught in the core modules.

• Collaborative and team-based learning The project is done in group with all members in

the group having individual as well as team based goals and do collaborative learning.


Team and Individual Roles• Team Responsibility

Developing system specifications Project planning and progress review System integration Final system working demonstration and presentation

• Individual Responsibility Responsible for the design and implementation of the sub-

system Developing sub-system specifications Software, hardware and PCB design Maintaining project design portfolio Giving peer feedback Sub-system working demonstration/presentation


Learning Outcomes• At the completion of the module, the students

should be able to: Formulate technical and performance specifications

for a system from loosely defined requirements. Carry out top-down design approach of the system

based on the technical and performance specifications given.

Carry out systematic design of the sub-systems from a system level design point of view.

Formulate and execute design for interconnections of various sub-systems.

Make trade-offs between function, cost, size, and user-friendliness.


Learning Outcomes (cntd.) Make design decisions for various functions to be

implemented e.g. whether to implement in hardware or software, choice of design method, choice of components or programming language etc.

Use of engineering tools and apply skills such as soldering, PCB design software etc.

Apply design methods, bread-board testing or programming as appropriate, perform tests, and debugging.

Work as a member of a team to realize a complete electronic system.

Apply principles of project management such as time-scheduling, work scheduling and resource management while carrying out the project.


Assessments

• Assessment Methodology CA1 – 20% (Week 2) CA2 – 40% (Week 4) Final examination – 40% (Week 6 )

• Assessment Contributions: Individual – 50% Team – 50%


Examples of EE2001 Project Smart Home System

Some Ideas:Some Ideas:• Security Security • SafetySafety• AutomationAutomation• Ambience controlAmbience control• Elderly careElderly care• Pet and plant carePet and plant care• EntertainmentEntertainment• ConnectivityConnectivity


Examples of EE2001 Project: Intelligent Airport

ubiquitous systems with high level of computational power

high-quality service to passengers

stringent levels of safety and security

efficient processing of commercial goods and luggage

high quality information systems

airport transportation systems


Healthcare Systems (AY 2008-09)

• What is the most amazing result civilization has achieved, possibly the greatest achievement in the last century relating to human beings? “Life Expectancy”

• It used to be 47 years in industrialized countries in the early 1900s and now in 2000s it is around 80 years – with women in an advantageous position.


Increased Life Expectancy - Active Ageing

• Increase in the life expectancy is represented by the conditions in which aging takes place which were inconceivable for the past generations such as level of education, the health status and economic resources.

• Population is quantitatively ageing and at the same time qualitatively getting younger – today’s senior citizens are far more educated and are aware of their potentials and personal aspirations and less resigned to decline in solitude and willing to actively contribute and play a significant role in society.


President S R Nathan 3rd July 1924 – 84 yrs Old

Aged but still active and contributing significantly to the growth of Singapore

Minister Mentor Lee Kuan Yew16th September 1923 – 84 yrs Old


Demographics of Singapore

No. of residents with age more

than 65 years will increase by 3 fold


Active Aging• The demographic reality of the over 65s who

make almost 20% pose a significant challenges to the health and social care givers.

• Thus, issues related to ageing of the population are becoming more and more necessary to be addressed from different points of view i.e. political, social, clinical and technological.

• Technology can provide important solutions to these issues.


E – Healthcare

I2R


Mobile Healthcare

1) Send raw ECG signals and motion data via

bluetooth

2) Detect abnormalities in

the raw ECG data and inform

relevant authorities

3) Hospitals determines the severity of the data and takes appropriate

actions


Wireless Body Area Network


BCI-based Robotic Rehabilitation for Stroke Patients


Stroke Patients Rehabilitation using MIT’s MANUS – Robotics System


Project Proposals

Students are encouraged to form their own team with three or more members in each group.

Think of some innovative ideas, as it is one of the assessment criteria.

Come up with the project proposal and come and discuss with us for approval.

Ensure that the project requirements are followed as far as possible.


Self-proposed Projects

Students are welcome to propose their own project outside the official theme of “healthcare”.

Ensure that the project requirements are met.

Please try to form your own team with at least two to three members.

Propose the project and come and discuss with us.


Allowed budget

• The budget for each team project is $500. $300 worth of components can be used from

the lab./central store. $200 worth of components can be bought

from outside.


EE2001 CommitteeProject Mentors:

S K PandaM MotaniS K Sahoo

GA -1 GA - 2 GA - 3 GA - 4

Project Supervisor

Krishna Manali

Project Supervisor

Daniel

Project AssistantHenry Tan


Useful Information

• Location: Linear Electronics Lab., E4A-06-03

• Module Web-site: http://www.ece.nus.edu.sg/ee2001/html/

• Any Questions?


Briefing for EE2001 Design Project

AY 2008-2009

Semester – 3

EE2001 Committee


Team and Individual Roles• Team - Consists of 4 members

System Specifications Project Scheduling System Integration Responsible for the final product Final Demonstration and Sales Presentation

• Individual Role Responsible for one subsystem Subsystem Specifications Software, Hardware and PCB design Project Design Portfolio


Assessments

• Assessment Methodology CA1 – 20% (Session 3 - 4) CA2 – 40% (Session 8 - 9) Final Demo – 40% (Sessions 11 - 12)

• Assessment Contributions: Individual – 50% Team – 50%


Project Assessment• Criteria: Functional features, Quality of work, Teamwork• Total 3 CAs

Quiz & Initial System Specs (20%) System Design and Integration (40%) Final Assessment(40%)

Final Product Demo, Sales Pitch Innovation & Contribution

• Final Team marks are distributed according to Peer feedback Student’s motivation and project participation Project Design Portfolio

• Evaluation Below average – < 50% Average – 50-64% Good – 65-80% Very Good – > 80%


Project Assessment


Let’s Brainstorm

• Have you been to a hospital? Use your creativity to improve the experience for: Patients? Doctors? Visitors?

• What kind of sensors could you put on the body to measure biomedical signals?

• How can we help people to age in a healthy and active manner?

• How can we encourage people of all ages to exercise safely and effectively?


Technical Details EE2001 Design Project

S.K. Sahoo


Introduction to the module


What exactly does this module entail?• You will do an embedded system

project consisting of: microcontroller programming (software) electronic circuits (hardware)

• It involves conceiving(C), designing(D), implementing(I) and operating(O) such a system


Some projects done earlier

Autonomous Guided Vehicle (AGV) AGV Central Controller



Wearable Personal Health monitor and tracker



The intelligent baby cot


Visualize the road ahead

Start

Deciding what to do – initial specifications for the system

Do hardware design and prototyping on bread board

Transferring hardware to PCB (Printed Circuit Board)

Software development, integration with hardware

Build the model of the complete system

End

Final specification report and demo


Decide what to do: Initial System Specifications Report


Breadboard Prototyping

Finalize the circuit schematics Get the components, patch and test the circuits


Printed Circuit Board

Draw the PCB artwork, solder the components on to the PCB and test it.


Software Development

Process Flow Chart C Code


Software Development and integration with Hardware

Programmer PIC Development board with Hardware


Build Model of complete system


Final Report and Demo


Seniors speak


Seniors speak:Which part of the module they like• Freedom and creativity

• Satisfaction that what you build can work

• Brainstorming and working with new people

• Building the model

• Practical use of concepts learnt in theory


Seniors speak:Which part is most difficult• Time requirement

• Initial phase of planning

• Integration and Design

• Debugging everything

• Programming PIC

• Making the model to fit all the PCB


Seniors speak:Those taking this module must

• start early, don’t do last minute

• revise programming

• remember that it is actually doable, though difficult

• do self-learning and info searching


Familiarization labs


Familiarization Labs

Objective:

To familiarize with basic tools and skills needed for the project

1. Basic Familiarization Lab – Lab 1

2. Advanced Familiarization Lab – Lab 2


Basic Familiarization Lab – Session 1• To solder and learn about the PIC

development board• To learn about IAR EWPic IE used for

editing and compiling PIC programs• To learn about the WinPic800

programmer• To learn about the lab equipment like

power supply, signal generator and oscilloscope


Advanced Familiarization Lab – Week2

1. Basic design steps for developing smart features

2. How to use the PIC datasheet

3. PIC microcontroller programming in C starting from sample programs


The first deliverable from you


CA1 - Initial System Specifications

• Brainstorm for ideas

• Define Subsystems for individuals

• System block diagram

• GANTT chart

• Submit the Team report for CA1

• Get feedback on your ISS report


What is a subsystem?

• A subset of the system features

• Functionally related

• Each subsystem must involve software-hardware integration and PCB


System Block Diagram

Subsystem1

Function 1

Function 2

:

Function n

Subsystem3

Function 1

Function 2

:

Function n

Subsystem2

Function 1

Function 2

:

Function n

Subsystem3

Function 1

Function 2

:

Function n


A sample GANTT chartPlanning is required as resources are limitedPlanning is required as resources are limited


General procedure for Gantt charts• Breakdown the overall project into the

next largest subprojects.

• Determine the time for each major activity.

• Determine the major activities that must be completed in series.

• Assemble complete schedule.


Printed Circuit Board (PCB)


Guidelines on PCB design

• Transfer design from bread-board to PCB

• Use Altium Designer 6 Software for PCB Design

• Submit the PCB design as a team (maximum size 1 A4)

• Submit PCB designs to the PCB lab by the date assigned for your team


How to learn the PCB design S/W

1. Altium Designer training manual

2. Videos on some common tasks

3. Library has been created for common

components available from lab

4. Technical support from S/W vendor


PCB Submission Dates

• There will be a date by which you must submit PCB design to the PCB lab


System Prototype on PCB

• Solder the components

• Wire up the parts together

• Debug the system on PCB


Final Demo


CA3 – Final Presentation

• Prepare an effective presentation keeping time in view

• Should embed photos and videos of working features in the presentation

• Individual students present their own subsystems

• Demonstrate working prototype


Documentation


1. Initial system and subsystem specs

2. Circuit schematics3. Design calculations4. Subsystem bill of material with cost5. Program flow chart, final source code6. PCB design art work and comments7. Team meeting minutes8. Datasheets and reference documents

9. Final system and subsystem specs10. Weekly Learning Diary/Progress report

Project Design Portfolio – Contents


Example Smart Project


What is a Smart Feature?

•It responds to an event/stimulus, in a desirable way, without human intervention.

Sensing Thinking Acting

Sensor Processor Actuator


Block diagram of a smart feature

Input

Port

Output

PortProcessor

Input Devices

Output Devices

Micro Controller

Sensors, Switches, Pushbuttons

LEDs, LCDs, Motors, Relays


“Divide and Conquer”

• Breaks it into smaller subparts, modules Hardware

Input circuits, input port Output devices, output port

Software Feature1Feature2…

Integration of H/W and S/W


Design steps for any smart system

1. Draw a process flow chart

2. Find the sensors and actuators

3. Patch and test the H/W circuits

4. Assign Microcontroller port/pin

5. Develop the Program

6. Test with the Hardware

7. Debug

H/W

S/W


Advanced Fam lab – Example mini project• Specifications:

• Features to be added to a smart chair:

1. It should monitor person’s weight and issue a warning if it is too much.

2. There should be a blinking light to entertain the person, as long as the seat is occupied.


Step 1: Process Flow chart

Yes

Someone on the chair?

No

Blink=1

Weight > safe limit?

Yes

Warning=1

No

Blink=0Warning=0

START

Blink=0Warning=0

Warning=0


Hardware Development


Step 2: Hardware (Sensors and Actuators)

Inputs :

• Push button (PB) to sense sea occupancy

• Trim pot to simulate a load cell.

Outputs :

• Red LED as visual warning

• Green LED for the blinking light


Step 5: Microcontroller Port Assignment

• PB to be connected to digital input RB0

• Potentiometer to be connected to

analog input channel RA0

• Red LED to digital output RD1

• Blinking LED to digital output RD2


Step 3: Circuit patching and testing

5V

RB0

Push button

4.7k

5V

RA010k potentiometer

LED

100RD1

LED

100RD2


Software Development


What is a Microcontroller


PSP

16F877

I/O

RAM

PROGRAM

MEMORY

EEPROM

Oscillator

Peripherals USARTRS232

MSSP

I2C, SPI TIMERS

1,2,3

ADC inputs

1,2,3,4,5,6,7,8 CCP

Capture,

Compare,

PWM

8192 words

33 pins

368 bytes

256 bytes

PIC16F877 Core and Peripheral Features


PIC Block Diagram


Step 4: Know the Microcontroller

PIC Datasheet


Step 6: Program the PIC

• Prepare the detailed Flow chart

• Code module by module

Some help:• Refresh C programming knowledge• Complete basic familiarization lab• Use the sample programs to build on• Save a working version before adding more


For each new PIC feature

• Things to look for in the data sheet

Associated Special Function

Registers (SFR)

Values for Configuration bits

Steps to be followed for correct use


Step 7 : Test and Debug

• Ensure ensure that Hardware is working Add debug code e.g. assign some digital input

to some digital outputRD7= RB7;

• Refer the section for the particular feature from PIC datasheet.

• Relook at the Program logic.• Comment out part of the code to focus on

one area.• Be systematic and very patient.


Did you get some idea about the seven steps for developing a smart feature?


Safety


Lab Safety


Safety Quizzes

Pass two online safety quizzes: links for these quizzes are on the EE2001 course website.

Safety Quiz certificates must be submitted on your first day of the lab.


Preparation for first lab

1. Take the two safety quizzes and bring printouts of safety quiz certificates.

2. Submit the Component Issue form to get the Toolbox

3. Come prepared to do soldering the PIC development board


First Day at the lab – solder the development board


Second Day at the lab – complete the advanced Fam lab

1. Follow the instructions and complete the lab.

2. Ensure you understand the PIC C program.

3. Ensure you understand the PIC C program.


Activity Time/Date Checked by

Completed of Safety Quiz

Issued of tool box and components packet

Got soldering approved by lab staff

Completed soldering of Dev. board

Finished Basic Fam. Lab

Finished Advanced Fam. Lab

Understood PIC program of the Fam labs

Had the first group meeting

Submitted the Initial System Specs report to PS

Initial Activity Log


Watch out for Common mistakes!


Common mistakes

• Common electrical GND while integrating two subsystems

• Forgetting that Pin1 of PIC is not connected to the Pin1 of the SIL on the Dev. Board

• Log on to the Lab PC using username ee2001 and password ee2001. Do not log in using NUS ID.


Common mistakes

• SFR ADCON1 is to be configured properly if PORTA is used

• That only CAs are important for this module – no need to show up on other days

• That I can somehow complete it if I spend two nights before the CAs


Recap of what we need to do


Conceive ideas starting from a general theme

Participate in group brain-storming

Organize the ideas and represent in a system block diagram form


Use the PIC C compiler, PIC programmer, PCB Design software

Know the PIC microcontroller

Know some hardware components from their data sheets

Design circuits according to datasheets and theoretical knowledge


Test circuits on bread-board

C programming for PIC

Put H/W and S/W together

Add more features – Debug

Design the PCB for the subsystem


Assemble compete system on PCB

Debug the complete system

Present your project work

Prepare technical documentation


Happy Learning !

Thank you.

Briefing for EE2001 Design Project AY 2008-2009 Special Term EE2001 Committee.

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Transcript of Briefing for EE2001 Design Project AY 2008-2009 Special Term EE2001 Committee.