Week 3 Biomedical and Electrical Engineering

Overview:

This week our team was tasked with building the circuit for a corona virus early warning home monitoring device for vulnerable populations. The device will provide measured warnings for the potential of infection at regular time intervals. The device will do this by taking in the different warning signs of the infection and based on how many symptoms are present, having a different responds. The risk factors are dry cough, increase in temperature and lower than normal levels of oxygen. At intervals regulated by the device, the monitor will: show a green light if no risk factors exist, show a yellow light if one risk factor is present, show a red light and transmit symptoms to a healthcare provider if risk two risk factors are present and sound an alarm and contact emergency services if risk all three risk factors are present. This circuit was to be made using circuitlab.

Biomedical Engineering:

Biomedical engineering is an engineering discipline that advances in engineering, medicine, and biology. This field is called upon to design devices and instruments used in medical procedures. Since their products are used for medical reasons, biomedical engineers work closely with doctors.

Electrical Engineering :

Electrical engineering is one of the newer branches of engineering. Electrical engineers conduct, research, design, develop and test and oversee development of electrical systems and the manufacture of electrical and electronic equipment and devices. While electrical engineers are designing their products, they implement electric and electronic theory, mathematics and materials. They also work on a wide range of components, devices, and systems, from tiny microchips to huge power station generators.

Design Plan:

Our design plan for building the circuit was to first construct a truth table that listed the different inputs (cough, oxygen and temperature) and the outputs (red led, green led, yellow led or an alarm) they could produce. Once that was finished, we wrote out logic equations that represented the truth table we had made. Next, we started working on our circuit. To build the circuit we first put together all of the different pieces that come together to make the alarm. We then set up the different inputs, using AND gates and connected them to a to a flip flop circuit. We built the set up of the LED lights and connected them to the flip flop along with the alarm. Once we tested the circuits voltage by stimulating the design, we added out truth table into the circuit to build a working circuit that fit the needs of our machine. Event though after multiple tries to get the circuit to be fully functional in the end it did not fully work. We are still proud of what we accomplished because after we already submitted our second attempt, when Darin emailed that we needed to fix it we put in the effort and time to make it the best that we could.

Conclusion:

What we learned

• We learned how to design a circuit

• Boolean Expressions

• Truth Tables

• Binary Numbers

• How OR, AND & Inverter gates work

What we would change

• We could have made the circuit look cleaner and easier to understand by making it organized and naming everything

• figure out how to work the timer