Project
| # | Title | Team Members | TA | Documents | Sponsor |
|---|---|---|---|---|---|
| 57 | Wearable Smoke/CO Detector for Deaf and Hard of Hearing |
Michael Loftis Mohammad Adiprayogo |
Mengze Sha | design_document1.pdf final_paper1.pdf presentation3.pptx proposal1.pdf |
|
| Group Members: mloftis2 (Mike Loftis), msa5 (Mohammad Adiprayogo) Problem Current smoke and carbon monoxide detectors designed for deaf and hard of hearing people alert them of the presence of fire/CO via strobe light. A hearing impaired person could easily find themselves in an environment that is not equipped with a high intensity strobe alarm. To ensure awareness of dangers in the environment (especially while sleeping), they could carry their strobe light detector with them, but this would be less than ideal. Solution We are proposing a more portable option with a wearable wristband that will house both a photoelectric sensor for smoke and a metal oxide sensor for carbon monoxide, and notify the wearer with a small vibration motor. The device will be equipped with manual push button to stop motor vibration in case of a false alarm, and an external LED to monitor battery life. Sensor Subsystem -Photoelectric Reflective Sensor Chamber: This chamber will house both the sensor and reflector, smoke blocking the sensor's view of the reflector will cause a small vibration motor to alert the wearer. -Metal-Oxide Semiconductor Sensor - In the presence of clean air, oxygen is absorbed onto the semiconductor surface, blocking current flow; when carbon monoxide is introduced, it reacts with the absorbed oxygen, decreasing the amount of oxygen on the surface allowing current to flow. Similar to the photoelectric sensor, the allowed current will trigger the vibration motor. Power System 3V zinc-air or lithium coin cell battery bank (will be decided based on importance of cost vs weight of device). LED illumination will reflect battery life. Criterion for Success -Device will alert the wearer if smoke or CO is present via vibration -LED will illuminate once battery life is under 20% capacity -Push button will halt vibration upon user request Link to idea post: https://courses.engr.illinois.edu/ece445/pace/view-topic.asp?id=32018 |
|||||