BME100 s2014:T Group11 L3

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Name: Deven Govin
Name: Hillary Bratlien
Name: Allan Ross
Name: Sharon Li
Name: Osama Wali


Descriptive & Inferential Statistics

Temperature Data:

' Oral Thermometer (Gold Standard) Sensor Thermometer
Average (Degrees F) 96.62932099 97.49969136
Standard Deviation 1.746373022 1.254206506
Standard Error 0.097020723 0.069678139
T-test value 9.30607E-13

Blood Pressure Data:

' Watch Sensor Cuff Sensor (Gold Standard)
Average (mmHg) 113.65625 119.7569444
Std Deviation 13.58300957 17.55221043
Std Error 0.800386515 1.034273918
T-Test 1.85243E-07

Pulse Data:

' Watch Sensor Pulse Oximeter (Gold Standard)
Average (beats per minute) 83.31617647 85.61764706
Std Deviation 16.50257822 17.83692378
Std Error 1.000615781 1.081522364
T- Test 0.000377901

In each experiment, an experimental diagnostic device was used alongside a proven device as a standard. Because there was only two data sets in each trial, a t-test was performed to determine a significant difference. In each trial, the t-test showed a significant difference between the data sets. In this case, it shows that the experimental devices did not produce reliable results when compared to the proven standards.



The Watch Sensor was used to measure both the blood pressure and the heart rate. However, this method of testing had a few problems associated with it. On one hand the watch sensor is more convenient than the blood pressure cuff as it doesn’t require such a large apparatus and it can be worn like a watch. Unfortunately, a few problems we noticed arose when we used the device for its intended purpose; namely the watch sensor would slide down the arm when air was being released from the device this could lead to a higher blood pressure reading. A solution to this problem would be to implement a new testing position for the device, such as laying the arm on a flat surface during measurement.

The Under-Arm Thermometer was used to measure the human body temperature and was intended to be used in favor of the oral thermometers. However, this device had more problems associated with it than it did benefits. It was intended to stay under the user’s arm for long periods of time and give constant readings to the person, but the Bluetooth was unreliable and ultimately the device wasn’t able to stay in position properly for long periods of time. To remedy this situation it could be possible to make the device itself have a removable adhesive surface or even a strap to properly support the device in the desired testing position. In addition, the Bluetooth broadcaster needs to be improved with a stronger signal strength to penetrate differed sizes of people and various layers of clothing.


Target Population and Need

The Baby Beanie is aimed specially at the new, worried, protective parents of newborns and infants. More generally it is aimed at all the parents of newborns and infants. A secondary target population are those individuals that are responsible for watching babies like babysitters and different daycare professionals.

As a device the Baby Beanie will provide constant monitoring of a baby’s vitals like temperature, pulse and sound monitoring. As a product the Baby Beanie combines three generally separate devices as well as providing a constant monitoring that is not present in current baby vital measurement products. The Baby Beanie will provide a monitoring device for parents that is applicable for both daytime and nighttime monitoring.

Device Design

The Baby Beanie consists of two parts. The first part is the actual measuring and monitoring portion of the Baby Beanie. It consists of a flexible fabric with three electrode sensors. The top two sensors are used to measure the baby’s pulse and sensor located at the bottom measures the baby’s temperature. This can be seen in Image 1. On the bottom of the top side of the device is where the microphone is located, as seen in Image 1. Throughout the middle of the device is the Bluetooth transmitting hardware as well as the processing chips that compiles the information gained through the sensors. This part is shaped like a hourglass in order to insure the positioning in the actual beanie and to prevent movement on the baby’s head. This can all be seen in Image 1.

The second part of the Baby Beanie is the actual beanie with a sewn in piece of fabric. This sewn in fabric is used to anchor the monitoring part as previously described. This can be seen in Image 2.

Image 1

Diagram BB.jpg

Image 2


Inferential Statistics

Raw Data Awake Baby.png

Inferential Statistics.png