What is it?

The device uses Doppler ultrasound to non-invasively monitor cerebral blood flow in organ donor patients undergoing normothermic regional perfusion. The device sets an alarm off if there is any blood flow detected in the patient's carotid arteries, which would raise ethical concerns over the patient's neurological status. The device is a human sized collar that is fitted on the patient prior to the operation. An audiovisual alarm system is set off if blood flow is detected.

How does it work?

The device contains two pulsed-wave ultrasonic doppler transducers to determine if bloodflow is present in the patient's carotid arteries. The transducers are placed on sliding holders to allow them to be adjusted to point to the carotid arteries of the patient. The system integrates a Texas Instruments MSP430FR5043 microcontroller for real-time signal processing as well as managing the audiovisual alarm system. The project builds upon ETH Zurich’s open-source WULPUS architecture, with enhancements tailored to blood flow detection.

Why?

The aim for this capstone project is to serve as a clinical aid for confirming brain death and offers a scalable foundation for future advancements in portable ultrasound technology.

Capstone supervisor: Dr. James C. Lacefield, P.Eng

What is it?

The HappyJoe is a temperature measuring hot plate where the user enters the desired temperature they would like the drink placed on the hot plate to be maintained at, and the device actively monitors and adjusts the temperature of the drink to maintain the user desired temperature.

How does it work?

The HappyJoe utilizes a thermal sensor to monitor the drink's current temperature. The hot plate heats up the drink to maintain the desired temperature as necessary. Once the desired temperature is reached, a buzzer goes off alerting the user the drink is ready.

Why?

I like my hot beverages not scalding, but on the lower end of the average temperature range. Problem is, that it takes a long time for a freshly brewed cup of coffee to reach the temperature I like it at. Even worse, since I like the temperature to be lower than average, the temperature can quickly drop below the temperature I like and just end up plain old cold. I will often make a drink but then forget about it while I wait for it to cool, so this is designed to help prevent that from happening.

What is it?

The Intelli-Lock is a home security system that schedules when the door it's installed in should be locked or not, as well as granting access to users with valid keycards. There is an internal button to allow users to exit from within the locked area. The device also contains a buzzer that will go off depending on if access is granted or not.

How does it work?

System is designed as an Arduino shield that can be installed directly ontop of an Arduino. The system uses an RFID pcb to scan the user's keycard. Realtime Clock module used for device to track current time. Micro servo used to allow precise movements for locking/unlocking the door.

Why?

Unautomated security systems are an inconvenience for workers in a store who are trying to lock up for the day, as customers can enter the store past closing time due to the doors not being locked automatically when the store closes for the night. The Intelli-Lock system is designed to ease that pain and to improve the closing procedures for a store.