Begin with a good plan. Outline. ECE496 Design Project Preparing Your Project Proposal. to guide the rest of your journey

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1 Begin with a good plan ECE496 Design Project Preparing Your Project Proposal Thursday, Sept. 14, 2017 n Maps n Equipment n Study terrain n Plan path All things are created twice. There s a mental or first creation, and a physical or second creation. Stephen Covey 1 to guide the rest of your journey Outline n Design n Implementation n Testing n Presentations n Teamwork n Your Project Proposal an evolving plan n Developing the Proposal n Discussion: understanding your audience n Development models waterfall vs. spiral n Submission schedule n Draft A meetings 4 1

2 Project Proposal Guidelines (2 files) Your Project Proposal an evolving plan Document Guidelines general guidelines that apply to all written deliverables Project Proposal -- Guidelines specific to the project proposal (all versions) Contains many examples & suggestions read through carefully 5 6 Understanding your audience Your Project Proposal an evolving plan ECP staff Admin Administrator & Supervisor Students Supervisor Administrator & ECP Staff The expert client Defining the problem Getting the technical details right Team manager and coach Engineering design & project planning Effective technical communication 8 2

3 Project Proposal (Draft A) Project Proposal (Draft A) 9 10 Background and Motivation Example: Background and Motivation The Situation/Problem/Solution Structure n 1. Describe the Situation from which the problem emerges n 2. Isolate the Problem n 3. Explain a potential Solution, its benefits & significance Numerical Simulation of the Cardiovascular System, ECE496,

4 Example: Background and Motivation Background and Motivation According to Canadian Heart and Stroke foundation, cardiovascular diseases are causing 29% of deaths in Canada[1]. One of the novel ways is to use numeric solvers or modeling to simulate the behavior of the vessels to increase our understanding of the underlying processes[2]. Currently there are two different approaches for approximating the solution. One is the use of non-linear numerical solvers to directly calculate their behavior, without any simplifications to the governing differential equations. However, this approach is very time consuming, as it requires three days of computation time for modeling only five artery system[2]. Thus, it is not feasible to use this in real time processing operations. Another existing solution is to linearize the equations governing the flow before modeling. This simplification allows for much faster calculations, while having only small deviations from the actual results [2]. Additionally, because of the similarities between the physics the fluid mechanics and electrical transmission lines, it is possible to turn the linearized equations governing blood flow into circuits. This is done because of the overwhelming ability of modern circuit simulators. That is, it is easier to model the blood vessels in circuitry rather than trying to directly understand the behavior of the vessels. In this project, we build on the previous progress done in electric simulation of the cardiovascular system, by accounting for nonlinear effects and streamlining the calculation process to gain faster runtime speed than the aforementioned numerical nonlinear modeling. To achieve this, we will be modeling the Navier-Stokes equations which are the underlying governing equations for the physics of cardiovascular systems[3].we will be removing the linearizing constraints one by one, and hope to build a circuit system which is not limited by the simplifications of linearizations, but still has the speed due to the use of circuit stimulation. Numerical Simulation of the Cardiovascular System, ECE496, According to Canadian Heart and Stroke foundation, cardiovascular diseases are causing 29% of deaths in Canada[1]. One of the novel ways is to use numeric solvers or modeling to simulate the behavior of the vessels to increase our understanding of the underlying processes[2]. Currently there are two different approaches for approximating the solution. One is the use of non-linear numerical solvers to directly calculate their behavior, without any simplifications to the governing differential equations. However, this approach is very time consuming, as it requires three days of computation time for modeling only five artery system[2]. Thus, it is not feasible to use this in real time processing operations. Another existing solution is to linearize the equations governing the flow before modeling. This simplification allows for much faster calculations, while having only small deviations from the actual results [2]. Additionally, because of the similarities between the physics the fluid mechanics and electrical transmission lines, it is possible to turn the linearized equations governing blood flow into circuits. This is done because of the overwhelming ability of modern circuit simulators. That is, it is easier to model the blood vessels in circuitry rather than trying to directly understand the behavior of the vessels. In this project, we build on the previous progress done in electric simulation of the cardiovascular system, by accounting for nonlinear effects and streamlining the calculation process to gain faster runtime speed than the aforementioned numerical nonlinear modeling. To achieve this, we will be modeling the Navier-Stokes equations which are the underlying governing equations for the physics of cardiovascular systems[3].we will be removing the linearizing constraints one by one, and hope to build a circuit system which is not limited by the simplifications of linearizations, but still has the speed due to the use of circuit stimulation. Situation Problem Potential solutions Benefits 14 Project Proposal (Draft A) Evolving the Goal Statement Project Goal (initial) This design is intended to a cardiovascular system to predict the future state of the system to assist the surgeons during surgery and alarming heart diseased patients of upcoming threats. Project Goal (final) The goal of this project is to create an accurate circuit model of the cardiovascular system so that we can obtain information about the pressure and flow rate at various junctions of the system. This will be compared with work done by the previous group and by the work done by graduate students.[1]

5 Project Proposal (Draft A) Goal Statement and Requirements (initial) Goal This design is intended to a cardiovascular system to predict the future state of the system to assist the surgeons during surgery and alarming heart diseased patients of upcoming threats. Project Requirements There are several factors which have to be considered during the design process and some would be used as guidelines for helping during decision making processes. Some of which are as follows: Functions: The design intends to address following factors: Receive each Heart pumping pattern for modelling the source behaviour Predict the stabilized pressure state of the body. Predict the future state of the body. 17 Visually graphs the current and future states of the system. 18 Goal Statement and Requirements (final) Project Proposal (Draft B) Project Goal (final) The goal of this project is to create an accurate circuit model of the cardiovascular system so that we can obtain information about the pressure and flow rate at various junctions of the system. This will be compared with work done by the previous group and by the work done by graduate students.[1] Project Requirements (final) Functions: The design shall simulate the cardiovascular system using a circuit model It shall produce a visual representation of the flow rate and pressure at each artery Objectives: Its runtime time shall be within seconds to minutes for it to be comparable with the fastest existing solution [1] Its accuracy should be at least 95% matching with results from numerical solvers of the graduate students, and its error should be less than the circuit with linear lumped elements [1] Constraints: The design shall use the PSpice circuit simulation program. The solution shall be in the form of circuit diagram

6 Connecting Validation & Acceptance Tests to the Goal Project Goal The goal of this project is to create an accurate circuit model of the cardiovascular system so that we can obtain information about the pressure and flow rate at various junctions of the system. This will be compared with work done by the previous group and by the work done by graduate students.[1] Validation and Acceptance Tests To verify that our design, we will compare the output from our new preprocessor with the output from the linear case and with the graduate students work [1] with the following requirements: Our output shall have at least 95% correspondence with the output of the graduate student s. This can be verified by extracting the data output from LTSpice to MATLAB and using numerical analysis to compare each of the values. A graph of the relative percentage error will be shown and the average error will be calculated. We shall test the speed of simulation of our nonlinear circuit by running it 3 times with a single artery in our model for both the linear and nonlinear case. We expect the speed for modelling a single artery in the linear case to be under 1 second, the speed for the nonlinear case to be under 3 seconds. 21 Understanding your audience Supervisor Students The expert client Defining the problem Getting the technical details right Administrator & ECP Staff Team manager and coach Engineering design & project planning Effective technical communication Your Project Proposal an evolving plan ECP staff Admin Administrator & Supervisor Spiral Development Model (similar in structure to agile but with different time scales) Evaluate alternatives, resolve risks Establish / discover requirements, identify alternatives Start Implement solution End1 End2 End3 Stop 23 More likely used in software projects, where iterations can be rapid and low-cost Does *not* mean that no requirements, no planning, or no verification is needed Test/verify [There are several differing labels out there, but all show a snowball effect for increasing functionality] 6

7 Waterfall Model Traditional, sure, but still needed for multidisciplinary engineering/safety-related systems where it cannot fail Projects can employ combinations Evaluate alternatives, resolve risks Goal Requirements level 1 Final integration Acceptance Testing Establish / discover requirements, identify alternatives Implement solution Design to level 1 Verify level 1 solution Start Requirements level 2 Integrate to level End1 Design to level 2 Verify level 2 solution End2 End3 Stop Failure cannot be tolerated in delivered products (i.e. spacecraft) Costs are high for the design iteration and cannot be reduced (such as some hardware-intensive projects) Goal Requirements level 1 Design to level 1 Requirements level 2 Design to level 2 Test/verify Acceptance Testing Final integration Verify level 1 solution Integrate to level Verify level 2 solution Project Proposal Schedule Draft A Meetings n Draft A Wed. Sept 20 at 3pm Paper copy: submit to ECP office (SFB670) Register for an appointment with ECP Electronic copy: Log into ECE496 website and under assignments, Proposal Draft A, click Submit assignment n Draft B Thu. Oct 5 at 3pm Paper copy: Submit into drop boxes outside SFB560 in the box for your section # (you will know by then) Electronic copy: upload onto ECE496 website n Final Proposal Thu. Oct 26 at 3pm Paper copy: Submit into drop boxes outside SFB560 in the box for your section # (you will know by then) Electronic copy: upload onto ECE496 website ONLY the Final Proposal is assigned a grade

8 Draft A Meeting Sign-Up and Submission Submitting Draft A Wednesday, September 20, 9am-3pm Sign up for a Writing Instructor meeting on the signup sheet posted in SF B670. (Be sure whole group can attend.) Staple a Draft A Feedback Form to the front of your Proposal Write down Session Code, e.g., A28100, and Meeting Date, Time, and Place on the Draft A Feedback Form. Note meeting details in your calendar. Submit hard copy in the drop box (electronic copy: upload onto ECE496 website) Sign-up Sheet After the Submissions Time Session Location 12:00 A GB204A 12:00 K SFB670B Project Name Contact Person Name (PRINT) Contact Person n Draft A (Sept. 20): Meeting with ECP instructors n Draft B (Oct. 5): Lecture 3 Design reviews (Oct. 5) 12:30 A GB204A 12:30 K SFB670B 1:00 A19100 GB204A 3:00 M19300 SFB670E Draft B returned by administrator (Oct. 19) n Final proposal (Oct. 26): Design Review Meetings (Oct. 30-Nov. 10) 3:30 M19330 SFB670E 4:00 M19400 SFB670E