Date post: | 14-Apr-2018 |
Category: |
Documents |
Upload: | hilmi-sanusi |
View: | 218 times |
Download: | 0 times |
of 31
7/27/2019 KL3083 Lecture 04 project.ppt
1/31
KL 3083RekaBentuk Sistem
Lecturer In-charge:Hilmi Sanusi
The Team:Prof. AlauddinProf KasmiranHilmi Sanusi
The Secretary:Fazilah Kamil
.
7/27/2019 KL3083 Lecture 04 project.ppt
2/31
Projects
Input
(sensors)
Process(micro-
controller)
Output(Actuators)
Interface
(A/D)
- analog input
Interface
(D/A)
7/27/2019 KL3083 Lecture 04 project.ppt
3/31
Projects (cont - 1)
Input
Analog input
Require adc (built in..?)
Resolution, sampling etc
Digital input
TTL logic level Making input TTL compatible else u_controller
cant read your data
7/27/2019 KL3083 Lecture 04 project.ppt
4/31
Projects (cont - 2)
Process
Calculation
Logic operation
Decision making
C / C++
Simulation, emulation etc
7/27/2019 KL3083 Lecture 04 project.ppt
5/31
Projects (cont - 3)
Output
Analog
Actuators (motors, light etc)
Speed, intensity etc
Digital
Buzzer, relay, On/off
7/27/2019 KL3083 Lecture 04 project.ppt
6/31
Projects (cont4)
Project cost < RM 25 excluding the microcontroller
Prototype may cost more but end productsmust cost less
Reduce costbuilt your own sensors and
actuators Perform cost reduction step trough
innovative iteration
7/27/2019 KL3083 Lecture 04 project.ppt
7/31
Requirements
AnalysisINPUTS
Functional
Analysis/
Allocation
Design
Synthesis
Analysis &
ControlVerif ication
Loop
Requirements
Loop
DesignLoop
OUTPUTS
7/27/2019 KL3083 Lecture 04 project.ppt
8/31
Projects (cont6)
Set input requirements
Make sure the sensors are able to perform the
input requirements
Make sensor as simple as possible, let the
micro-controller do the thinking
Set output requirementsSimplify the output presentation
7/27/2019 KL3083 Lecture 04 project.ppt
9/31
Define User
Needs
Define System
Requirements
Allocate System
Functions to
Subsystems
Detail Design
of Components
Verify
Components
Verification of
Subsystems
System
PerformanceVerification
System
Operational
Verification
7/27/2019 KL3083 Lecture 04 project.ppt
10/31
7/27/2019 KL3083 Lecture 04 project.ppt
11/31
System Engineering
(Technology management) Definitions of System Engineering
Structure: management technology
to assist in the formulation, analysisand interpretation of the impacts ofproposed policy, controls, andsystems on the needs, institution and
values under investigation
7/27/2019 KL3083 Lecture 04 project.ppt
12/31
Definitions of System Engineering
Function: Methods and Tools
to support analysis of large-
scale, dynamic and complexsystems,
to support process-oriented
management practice andto provide effective & efficienttrade offs among alternatives
7/27/2019 KL3083 Lecture 04 project.ppt
13/31
Definitions of System Engineering
Purpose: For engaging in systemengineering
To develop information and knowledge
organization To support definition, development and
deployment of total systems to assure integration and high quality
relative to reliability, availability,maintainability, operability others_ilities.
7/27/2019 KL3083 Lecture 04 project.ppt
14/31
Systems Engineering
Functions Formulation of the System
Needs to be fulfilled
Requirements & Objectives
Constraints and Degrees of Freedom Alternatives to above
Analysis Determine the impact of varied alternative courses of
action
Determine the course of least constraint Determine the risk mitigation strategy
Interpretation of Analysis Rank Order, Bias & Uncertainty Assessment
7/27/2019 KL3083 Lecture 04 project.ppt
15/31
Steps and Phases
Formulation
Analysis
Interpretation
7/27/2019 KL3083 Lecture 04 project.ppt
16/31
Steps/Perspectives for System Engineering
(Formulation) Formulation of the System
Needs to be fulfilled
Requirements & Objectives
Constraints and Degrees of Freedom Alternatives to above
Value System Design
Identification of the objectives and goals that guide alternativeselection
Definition of multi-dimensional attributes or decision criteria Identification and validation of objective measures
System Synthesis
Generation of alternative course of action and associated measuresof effectiveness
7/27/2019 KL3083 Lecture 04 project.ppt
17/31
Identification of Need
Gap
New Techniques
New System Requirements added
System Requirements Change Priority
Political Views Shift
Involve the customerunless the customer haschanged as well
7/27/2019 KL3083 Lecture 04 project.ppt
18/31
What are the Functions Applied
To? Design, Develop, Deploy Systems
Large in Scale
Large in Scope
Large in Range of Impact System Types
Physical Systems
Human & Organizational Systems
Enterprise Systems
Information Systems
Systems of Systems Aerospace examples
7/27/2019 KL3083 Lecture 04 project.ppt
19/31
What is a System?
Group of Components that worktogether for a purpose Service
Product
Process
Attributes: discernable manifestations
of the components Relationships are links betweenComponents & Attributes
7/27/2019 KL3083 Lecture 04 project.ppt
20/31
Components Properties
Properties & Behavior of each Component has an
influence on the properties & behavior of the set
as a whole Properties & Behaviors of each component of the
set depends on the properties & behaviors of at
least one other component
Each possible subset of the components has the
two properties listed above: I.E. the components
cannot be divided into independent subsets
7/27/2019 KL3083 Lecture 04 project.ppt
21/31
When you decompose what do you get?
Components
Structural: Static Elements of a System
Operating: Perform Processing
Flow: Materials and energy or information
being altered by system operations
7/27/2019 KL3083 Lecture 04 project.ppt
22/31
How can system be known?
State of a System Collection of variables that describe a
system from a perspective and at specific
time Variation in perspective
Variation in temporal resolution
System Engineering Knowledge Principles
Practices
Perspectives
7/27/2019 KL3083 Lecture 04 project.ppt
23/31
How is a System Understood ?
Decomposition
Analysis
Aggregation
More than the sum of its parts
Emergent
Self-organizing
Entropic and Enthalpic
The thermodynamic function of a system is equivalent tothe sum of the internal energy of the system plus the
product of its volume multiplied by the pressure exerted onit by its surroundings
7/27/2019 KL3083 Lecture 04 project.ppt
24/31
7/27/2019 KL3083 Lecture 04 project.ppt
25/31
What are criteria for System Quality ?
Efficient & Effective in
Production
Use
Maintenance
Retrofit
7/27/2019 KL3083 Lecture 04 project.ppt
26/31
Feasibility Analysis
Identify Possible System level Approaches
Eval for
Performance Effectiveness
Manufacturability
Maintenance
Logistics Support Recommend a course of action
(a few)
7/27/2019 KL3083 Lecture 04 project.ppt
27/31
Identify Constraints
Limit Your Options
Specifications that must be met
Integration Standards that are mandated Cost & Schedule Limitations
Missing Information
Missing CodeMissing Service Oriented Architecture (SOA)
Life Cycle Issues Identified
7/27/2019 KL3083 Lecture 04 project.ppt
28/31
System Requirements
System Specification
Software System
Hardware
Test Equipment
Simulation Reqs
Range Reqs
Integration Reqs
Data Reqs
ManagementRequirements
Program PlanningControl
Version Control
Test DataDissemination
Integration
Reporting
Technical Management
7/27/2019 KL3083 Lecture 04 project.ppt
29/31
7/27/2019 KL3083 Lecture 04 project.ppt
30/31
Technical Performance Measures
Design Dependent Parameters
Quality Function Deployment
Belies the waterfall approach
House of Quality Approach
Six sigma etc
7/27/2019 KL3083 Lecture 04 project.ppt
31/31