Excercises

Exercise 1: Set up my Raspberry Pie OS and a VNC connection following Lab 1

Exercise 2-Needs Assessment(early project idea):

Problem that needs addressing: Less painful way for diabetics to check blood sugar

Objective: make diabetics daily lives less strenuous

Background: In order for a diabetic to measure their blood sugar levels, they must prick themselves with a thin needle several times a day. This results in psychical scarring on the of the body used to take readings. This process adds an unnecessary element of stress and pain to the already challenging daily lives of diabetics.

Methodology: Design a circuit board with a probe to measure blood sugar levels and any other necessary metrics. The circuit board's size will be in terms of millimetres or smaller. It will need a protective coating to survive in the body and should be made to last as long as possible. The chip will come with a small device that reads its measurements on a digital display. To avoid issues with battery replacement, the chip will be built without a power source. Instead, the power source will be generated by an electric field created by the chip reader each time it is used, similar to wireless charging for phones.

Expected Results: The patient should be able to measure their blood sugar without pricking their fingers. In general, a medical device needs 3-6 months of development and testing before it can be cleared by the FDA for clinical trails which typically run for another 3-6 months.

Cost: Software will be needed to design the chip, this would range in the hundreds of dollars. Depending on FDA classification of the device, it could cost tens of millions to get a certification for sale.

Exercise 3 - Problem Formulation:

Statement Re-statement: Corona virus is spreading rapidly in urban areas. Urban Areas are more susceptible to corona-virus due to increased use of public transport .

source/cause approach: here

PS-DS strategy With Duncker Diagrams: here

Kepner-Tregoe: Problem: Cities have seen rapid spreading of the corona virus.

what: Cause of pothole is unknown. Time between pot hole re-appearance is unknown.

when: Problem has been occurring since 20XX, Changes are not urgent. Road is very busy during the day so construction must happen at night.

Who: local residents and original contractor could have useful information about the site, talk to city engineer about it as well.

Where: Pothole is at location XXXX, there is a drainage grate near the pothole.

Why: It is large enough that it could be a sign of a larger problem with the nearby drain system and cars are being damaged by it.

How: Pothole affects speed of traffic and could be affected by the drain near it, Likely developed due to adverse geological and drainage conditions.

Final: The city engineer and road contractors should be contacted to get background info. Drainage near pothole should be checked and ground should be scanned. Figuring out the cause of the problem is most important as the pothole its self is only a small issue.

Exercise 4 - Solution Development:

Problem: subway system needs to be cleaner to avoid spreading disease

Path:

1. Identify pathways for virus transmission within a subway terminal and train car and how active these sites/pathways are during peak hours
2. Aim to minimize human interaction with each possible path by removal or alteration
3. Create model for each pathway and analyze results
4. Take successful methods and look into full implementation

Goals: Touch-less processing, cleaner train cars, better ventilation, crowd reduction

Specifications: Touch-less processing must at least match speed of regular ticket use. Train cars can only be cleaned when empty.

Exercise 5 - Intellectual Properties:

The google trademark has changed several times in its life time, its first iteration was a picture of a hand from when the company was still called back rub in 1998.

Pic below

The classic google trademark was created in 1999

Pic below

Exercise 6 - Abstraction and Modeling

System Model Design: Here is a model of a system

Process Model Design: here is a model for the recycling process for PET bottles

Exercise 7 - Synthesis: Morphological Chart

Exercise 8 - Ethics and Liability

Design: A touch-less subway system with train-car cleaning

Misuses: Could be more susceptible to be people jumping the turnstiles, especially if design is streamlined to keep people moving.

Changes: Over time the material will be worn be the weather and constant use, regular inspections will be necessary.

Disposal: Demolition will block the water way under the bridge and debris falling in the river could damage its Eco system. Bridge will have to be deconstructed

Exercise 9 - Failure and Hazard Analysis

Using corrosion resistant materials in the bridge will help reduce wear brought on by traffic and weathering. A high railing on the bridge and a platform or net built several yards below the bridge will discourage jumpers. To minimize hazards in disposal of the bridge, a lengthy and careful deconstruction process will be necessary.

Exercise 10 - Design Analysis: KT decision and evaluation

Exercise 11 - Implementation