team2-main project proposal (1) - ee student...

Vitality Band and Diagnostic Tool

Main Project Proposal

Team # 2 Clarissa McKay Christa Hamilton Vanessa Romero

Dr Hari Kalva

Electrical Engineering

April 16, 2013

Our goal is to create a 24-‐7 medical monitoring device. It will be similar in design to most smart watches and fitness bands, but will include more medically relevant measurements, including ovulation and fertility. This device will improve on existing technologies by having enhanced power efficiency with continuous charging, better syncing methods, and a more seamless user experience.

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Introduction

Problem Description

There is not a convenient way for women to track ovulation. It is a cumbersome process that involves taking the basal body temperature first thing in the morning before any activities take place. Even talking can affect the measurements. This measurement must then be manually entered into a tracking program or calendar.

Patients are not always accurate when they describe how they feel to the doctor. It can be hard to remember when you felt a little off. Information can be dismissed by the patient as irrelevant. Having reliable and long duration temperature, blood pressure, and heart rate information provided to medical professionals will aid in the diagnosis of several illnesses.

Problem Significance

Many women rely on temperature based ovulation tracking to either become pregnant or as a form of birth control. This practice is a form of natural birth control known as the Fertility Awareness Method and is similar to the Rhythm Method. The most accurate way to use this method is to take the person’s temperature when they are completely at rest. The best time is around 3-‐4 AM when the person is sleeping very soundly. As you can imagine, this is not the actual practice even though it will give the best results.

In addition, access to temperature for a patient 24 hours a day will aid several different fields of health professionals in their diagnoses. For example, psychiatrists can use temperature as an indicator of state of mind, and circadian-‐system activity can be tracked using long term temperature measurements. There are also several illnesses that give indicators of their presence with temperature changes during sleep such as thyroid disorders and adrenal fatigue.

Goals and Objectives

The goal is to design a bracelet with a temperature sensor to take basal body temperature at the correct time in the evening and upload that data to an ovulation tracking calendar or to a doctor’s office. We also want to have consistent measurements of stress and fluctuations via the galvanic skin response. The specific objectives are:

1. Design and build a wristband with a temperature sensor that is meant to be worn 24 hours a day (all team members).

2. Design and develop an application to display ovulation information to user (Team member 3). 3. Design and develop algorithms to accurately track ovulation (Team member 1). 4. Integrate blood oxygen sensor and pressure sensor to give additional medical information (all

team members).

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5. Design and develop additional medical uses for a 24 hour wristband with temperature sensor, pressure sensor, galvanic skin response sensor and blood oxygen sensor such as helping to diagnose an illness, monitor heart rate and blood pressure, etc. (Team member 2).

6. Design and add a sleep tracking system to wristband after main objective of a temperature sensor is functioning (all team members).

Literature Survey

Related Products

There are several related products. They inspired us to improve upon them by adding key features and endeavoring to increase battery life. Each products pros and cons are discussed below as well as the design changes we would implement in our own wristband.

# 1 -‐ Jawbone UP

The UP wristband is meant to be worn 24 hours a day, which is the same as our wristband. It tracks steps, resting and active calories burned, and sleep without needing any user input. There is an option to allow the user to manually input food intake and workouts. The drawbacks of this wristband are that the battery life is only about a week, the battery is prone to fail after a few months of use, and the syncing is manual.

We would design a wristband similar to this but with a temperature sensor and heartbeat sensor. The temperature sensor will allow the calories burned to be tracked by temperature alone. There will be no need to input workouts. In addition, the sensor can be used to track basal body temperature. This allows users to track ovulation for the purpose of attempting to conceive or as a form of birth control.

This product is most similar to the functionality we would like for our wristband. As added research, our team purchased one and has been test wearing it to see how comfortable it is and how the associated application functions. Later, we will disassemble it to see what parts it contains and possibly use some of them in our design.

# 2 – Nike Fuel Band

This is strictly a fitness band and does not track sleep. Also, the band does not tell you how many calories you have burned but instead the user earns NikeFuel points. According to their website, the band uses oxygen kinetics and metabolic equivalents, MET, to determine the points.

Our wristband will have more features that are medical in nature. It is not meant to be a fitness band, but may include a pedometer and sleep tracker if size allows it to fit into the band. We are going to further research metabolic equivalents.

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# 3 – Fitbit One

This is an activity and sleep tracker that is clipped to clothing during the day and a sleep bracelet during the night. Users like the wireless syncing and the screen as they can get updates on their progress without having to sync. This company is currently designing a wristband that does the same thing. The functions are extremely similar to the Jawbone UP except it also contains an altimeter to track stair climbing.

# 4 – Suunto M5 Heart Rate Monitor

This product is mostly a heart rate monitor for fitness purposes that can also track calories burned and keep time. This is more of a watch style than a wristband. It requires the user to wear a strap around their chest to detect their heart rate. It allows the user to download workout routines to fit their fitness levels and workout goals.

We intend to incorporate a heart rate monitor into our wristband but it would need to be able to be sensed from the wristband. Further research is necessary to determine the viability of this potential feature.

Patent Reviews

Patent # 1

Reviewed by Clarissa McKay

US Patent 8311770, “Portable monitoring devices and methods of operating same”

Inventors: Eric Nathan Friedman, James Park, and Shelten Gee Jao Yuen.

Assignee: Fitbit, Inc.

Date Filed: May 10, 2012

Date Granted: Nov 13, 2012

Number of Claims: 25

Summary: This patent is for a device to track movement and calories burned. It is meant to be worn or carried either on the body or clothing. It can detect steps taken and differentiate between regular steps and those taken up stairs due to an altimeter. It uses heart rate and oxygen intake to calculate the calories burned. The device can be programmed to know the length of the users step to more accurately determine distance travelled by step count.

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Discussion: This item was one of the devices that inspired our group to take a fitness tracking device and alter it to be more of a health tracking accessory. The goal is to use the elements contained within the device as well as a temperature sensor that is accurate to the hundredth decimal place to determine health related information such as heart rate, oxygen level, basal body temperature and therefore ovulation tracking, and possibly blood pressure. Fitness elements such as step tracking and calories burned will be included as the necessary sensors will already be contained within in the wristband, even though this is not the primary objective for this device.

This patent’s idea will be helpful in our design because the item is very small and is a good starting point for components and sensors. The sensors used have been listed in the related patent section. In addition, several algorithms have been listed in the patent that should be useful in our project.

This patent will be our starting point but we will make it significantly different in the information reported to the user. The vehicle in which the sensors are transported will also differ significantly. The end goal is to produce stylish, jewelry-‐like wrist accessories that are intended to appeal to women.

Patent # 2

Reviewed by Christa Hamilton

US Patent 3938387, “Precision temperature transducer for measuring the surface temperature of the human and animal skin”

Inventors: Flesch; Udo

Assignee: Flesch; Udo

Date Filed: September 19, 1974

Date Granted: February 17, 1976

Number of Claims: 3

Summary: This patent is for a temperature sensor that is not affected by being pressed to the skin. It is still able to function normally even after extended durations. The temperature is accurate to the hundredth decimal place. It takes a reading within 2ms. The sensor itself is not influenced by touching the skin.

This temperature sensor will improve the design of our health wristband. It is small in size, easy to calibrate, simple, and fast. The patent does not show how small, but this type of sensor would be perfect for our wristband application. Since this patent is older, the hope is that it is commercially available, smaller, and faster.

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Patent # 3

Reviewed by Vanessa Romero

US Patent 5,050,612, “Device for computer-‐assisted monitoring of the body”

Inventor: Matsumura, Kenneth N.

Assignee: None listed

Date filed: Sept 12, 1989

Date Granted: Sep 24, 1991

Number of claims: 5

Summary: Patent 5,050,612 provides a description for a “Device for computer-‐assisted monitoring of the body.” The main monitoring measurements circle around measuring the basal body temperature, electrical activity of the heart, and glucose levels in the blood. The patent describes a device whose core microprocessor is mounted on the wrist. The location of the temperature sensors provides two embodiment options, one on the wrist, and one in the vagina.

Discussion: Temperature tracking throughout the day enables the diagnosis of health issues such as cancer, thyroid disease, TB, malaria, etc. where body temperature variations play a symptomatic role. Similarly, keeping track of heart rate can help detect the onset of heart problems. These are two aspects covered by patent 5,050,612 and are two of the features we will be exploring as part of our project, the “Vitality Band”.

The inventor Kenneth Matsumura states that there are only a few reliable ways to measure basal body temperature. He indicates that the most reliable core temperature measurement is a vaginal or rectal measurement. The second most accurate measurement is the axillary temperature, and finally the forehead, carotid and femoral triangle are other locations that can be used. Temperature measurement at the extremities such as the wrist come encumbered with the effects of ambient temperature, and the reduction of circulation to the extremities to prevent loss of body heat. In our research we are looking into body temperature sensors consisting of an infrared sensor which is different from the skin contact implementation Mr. Matsumura covers. However, the dual sensor implementation is something we have in common. As a way to further fine tune the basal body measurements we will be making, we are considering implementing a second sensor which measures the ambient temperature. Similar to Mr. Matsumura’s work in using two sensors, and through additional research and empirical tests we will come up with an algorithm to further optimize our results and accuracy. The historical data gathered through the use of the device by real women will also increase the forecasting capabilities of the Vitality Band and will personalize the results for each user. In effect our device will be “smart” in that it will learn and forecast through the use of statistical analysis within its algorithms.

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A secondary feature in the Vitality Band is the heart rate measurement. Mr. Matsumura describes the use of three sensing electrodes strategically placed in three locations in his wrist band. The wristband extends to the forearm to maximize the distances of the electrodes. In our implementation, once again we are considering the use of light similar to how an oximeter measures oxygen levels and heart rate. Our intended goal is to have a device that will provide valuable vital information while maintaining good aesthetics and comfort.

Overall patent 5,050,612 discusses many benefits to having basal body temperature and heart rate measurement information. While our main goal is to provide an ovulation predictor, a successful BBT measuring device can be used broadly in the medical field for diagnosis and treatment. Finally, similar to Mr. Matsumura’s goal, we hope to implement a device which will not be too intrusive to a user and thus will become something easy to wear and use while being beneficial and/or informative.

Proposed Design

Project Requirements

The wristband must accurately track temperature to the hundredth degree in order to detect the 0.4 to 1 degree F increase in basal temperature that indicates ovulation has taken place. As a secondary requirement once the temperature sensor is properly integrated and functioning, a sleep tracking system will be installed. As research, several fitness related wristbands were investigated and one was purchased and worn by the team members. More than 400 online customer reviews were read to determine that users were unhappy with battery life, manual syncing, waterproofing issues, display issues, and inaccurate pedometer and sleep tracking systems.

Product Design

The wristband will be a clamshell design. It will be minimally bendable with one hinge and clasp. Alternative power sources such as solar power and kinetics will be used in addition to the standard lithium ion battery to resolve power issues. Bluetooth 4.0 will be used instead of manually syncing to make it more user-‐friendly. The most important feature will be the temperature sensor. This will alter the wristband from a fitness aid to a medical diagnostic tool.

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CAD drawings of the proposed wristband are shown below:

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Block Diagram

Electrical Sub-‐System

The electrical sub-‐system includes the measure of signals, their interpretation and conversion to meaningful information. It will also include our design for better power consumption. The material list shows the sensing materials we wish to employ. The power and charging design elements are the responsibility of Team Member 1 & 2.

Computing and Communications

Team member 3 will primarily develop the computing and communications system. Her responsibility will be the graphic user interface and the microcontroller that will be used in the data interpretation and signal processing. We hope to incorporate Bluetooth 4.0 to communicate the data to the phone application as it is the best as power consumption. This system is comprised of the data evaluation, data transfer, graphic user interface, coding, and applications.

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State Diagrams

Bracelet State Diagram

Application State Diagram

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Implementation

Hardware & Diagram

The hardware that will be used is listed in the budget. The biometric sensors are a skin temperature sensor, an ambient temperature sensor, a photoplethysmograph to measure the pulse & heart rate, a galvanic skin sensor system to measure fluctuations in stress and a pressure sensor to measure pulse and heart rate in a different form. This data will be logged on a memory bank in the wrist band. A microprocessor and wireless transmitting device will be used to process and transmit the data to the phone app. The power system will be comprised of any combination of solar, piezoelectric quartz, kinetics, and rechargeable lithium-‐ion battery.

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Software

Three Software Subsystems

MicroProcessor

Sensors

BlueTooth

Vibrator/LED

Presentation/GUI

DatabaseBlueTooth

Internet(via WIFI/3G/4G)

WebPage / User Interface

Database

Internet(via WIFI/3G/4G)

There will be two main software subsystems which will be needed to run the main features of the Vitality Band. Those systems will be the Hardware subsystem which will exist in the Vitality Band and the Graphical User Interface which will exist on an Android or IPhone Device. The Cloud subsystem will be created as another way to maximize the features offered by our device.

The Vitality Band will take advantage of current mobile technologies in all three subsystems. The Hardware subsystem will use the available microprocessor instruction set. The Graphical User Interface will be built on Android and IOs taking advantage of the available Objective-‐C, and Java libraries. The GUID will also use the SQLite engine for both types of mobile devises. Finally, the Cloud subsystem will be built using LAMP resources.

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User Interface and Data Communications

The graphical user interface will provide a variety of options as show below. The Ovulation status will be one of the most important sets of information that will be available.

Other options will provide a way to personalize your device by allowing the user to provide user specific information. Different forms of viewing your ovulation and luteal phase information will be available in the way of histograms and reports. Stress, alarm, heart rate, and other options will also be available.

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Through the use of Bluetooth, the Vitality Band and mobile device will communicate with each other. The sensor data will be stored locally in a temporary memory location on the Vitality band. The device will be periodically activated to make temperature measurements and to send the saved information to the mobile device according to previously configured settings. The mobile device will store data in a database and algorithms will be used to determine the current stage of the ovulation cycle. The database information will then be able to be used to create forecasting reports for ovulation.

Once the first two software subsystems are set up, the Cloud subsystem will be created to harness the power of the internet. We will be able to update the other two subsystems doing pulls from the Cloud via Wifi, 3G, or 4G. More sophisticated algorithms and features will also be created with the use of anonymous gathered data from the devices and more in-‐depth research.

Testing

Testing and calibration is estimated to take 137 days total. Each component will be tested and integrated one by one. First is the temperature sensor followed by the photoplethysmograph and finally the pressure sensor. The microprocessor will be tested and programmed. Wireless communication will be programmed and tested. The software will be created and tested within 28 days.

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Development Plan and Schedule Outline of the Plan The most important feature of the wristband is the temperature sensor. To make it work accurately, there needs to be a skin temperature sensor and an ambient air temperature sensor. Algorithms will be used to determine accurate body temperature from the sensor input. Next, a photoplethysmograph will be integrated in the form of a pulse oximeter to determine the level of oxygen in the blood. Finally, a pressure sensor will be integrated to track heart rate. Algorithms will be used to create useful medical information from temperature, heart rate, and oxygen saturation.

An Android application will be created to display an ovulation tracking calendar. Also, a 24 hour temperature graph will be created to aid in the diagnosis of any illness that has indications of temperature fluctuation such as thyroid disease or cardiac arrhythmia.

A communication method will be developed to transfer data from the wristband to an Android phone and then to a Cloud. The preferred wireless transfer type is Bluetooth 4.0 as it is very power efficient. Wifi is also being considered as a backup. Manual syncing is considered last as it is the least desirable method of transferring data to the phone.

A power system will be designed to function continuously for up to 30 days. This power system can include solar, piezoelectric quartz, kinetics, and a rechargeable lithium-‐ion battery.

ID Task Name Start Duration

1 Vitality Band Mon 4/15/13 163 days2 Research Mon 4/15/13 28 days

3 Clinical Research Mon 4/15/13 7 days

4 Compatability Research Wed 4/24/13 7 days

5 Break Fri 5/3/13 14 days

6 Purchasing Thu 5/23/13 3 days

7 Testing & calibration Tue 5/21/13 137 days

8 temperature sensor calibration Tue 5/21/13 7 days

9 photo plethysmograph testing Thu 5/30/13 7 days

10 Microporcessor programing Thu 5/23/13 7 days

11 Structure and Design Thu 5/23/13 7 days

12 Internal memory testing Mon 6/3/13 7 days

13 microprocessor simulation Mon 6/10/13 7 days

14 pressure sensor Wed 6/19/13 7 days

15 Radio Frequency Communication Fri 6/28/13 7 days

16 GUI Design Thu 5/23/13 21 days

17 structure & Design Thu 5/23/13 7 days

18 Coding Mon 6/3/13 7 days

19 Testing & Simulatiom Wed 6/12/13 7 days

20 power design Thu 5/30/13 7 days

21 ADS Simulation Tue 7/9/13 7 days

22 Development Thu 7/18/13 36 days

23 pcb express order Thu 7/18/13 28 days

24 CADD Design Thu 7/18/13 7 days

25 Circuit Construction Wed 8/7/13 14 days

26 3d printing mechnical Tue 8/27/13 8 days

27 CADD Design Tue 8/27/13 7 days

28 printing & placement Thu 9/5/13 1 day

29 Performace & completion Fri 9/6/13 59 days

30 Alpa testing Fri 9/6/13 29 days

31 test repeatability & build 2nd circuit Fri 9/27/13 14 days

32 Features testing in app Fri 9/6/13 7 days

33 test algorithms - Forecasting Fri 9/6/13 7 days

34 Gui Function testing Fri 9/6/13 7 days

35 Hardware testing/ wear for 1 week Fri 9/6/13 7 days

36 debugging Tue 9/17/13 7 days

37 Beta Testing Wed 10/16/13 30 days

38 wear band for longest priod without recharging

Thu 10/17/13 30 days

39 Final Report Thu 10/17/13 7 days

40 Final Power point Tue 11/19/13 7 days

NA 5/22

Christa Hamilton,Clarissa McKay

Vanessa Romero,Clarissa McKay,Christa Hamilton

Christa Hamilton

NA 11/27



Christa Hamilton,Vanessa Romero





Vanessa Romero

Vanessa Romero

Vanessa Romero


Clarissa McKay

NA 9/5

Christa Hamilton


Christa Hamilton


NA 11/27


Vanessa Romero

Vanessa Romero

Vanessa Romero

Christa Hamilton,Clarissa McKay,Vanessa Romero

Vanessa Romero

Clarissa McKay

Christa Hamilton

F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W

Mar 17, '13 Apr 7, '13 Apr 28, '13 May 19, '13 Jun 9, '13 Jun 30, '13 Jul 21, '13 Aug 11, '13 Sep 1, '13 Sep 22, '13 Oct 13, '13 Nov 3, '13 Nov 24, '13 Dec 15, '13

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Work Breakdown Schedule and Gantt Chart Task Name Duration Start Date Finish Date Pred. Resource

Vitality Band 163 days Mon 4/15/13

Wed 11/27/13

Research 28 days Mon 4/15/13

Wed 5/22/13

Clinical Research 7 days Mon 4/15/13 Tue 4/23/13

Christa Hamilton Clarissa McKay

Compatibility Research 7 days Wed 4/24/13 Thu 5/2/13 3

Vanessa Romero Clarissa McKay Christa Hamilton

Break 14 days Fri 5/3/13 Wed 5/22/13 4

Purchasing 3 days Thu 5/23/13 Mon 5/27/13 5 Christa Hamilton

Testing & Calibration 137 days Tue 5/21/13 Wed 11/27/13

Temperature Sensor Calibration 7 days Tue 5/21/13

Wed 5/29/13


Photo Plethysmograph Testing

7 days

Thu 5/30/13

Fri 6/7/13

8


Microprocessor Programing 7 days Thu 5/23/13 Fri 5/31/13 5 Christa Hamilton Vanessa Romero

Structure and Design 7 days Thu 5/23/13 Fri 5/31/13 5 Christa Hamilton Vanessa Romero

Internal Memory Testing 7 days Mon 6/3/13 Tue 6/11/13 10 Christa Hamilton Vanessa Romero

Microprocessor Simulation 7 days Mon 6/10/13 Tue 6/18/13 9

Christa Hamilton Vanessa Romero

Pressure Sensor 7 days Wed 6/19/13 Thu 6/27/13 13


Radio Frequency Communication 7 days Fri 6/28/13 Mon 7/8/13 14

Christa Hamilton Vanessa Romero

GUI Design 21 days Thu 5/23/13 Thu 6/20/13 4 Vanessa Romero Structure & Design 7 days Thu 5/23/13 Fri 5/31/13 5 Vanessa Romero Coding 7 days Mon 6/3/13 Tue 6/11/13 17 Vanessa Romero

Testing & Simulation 7 days Wed 6/12/13 Thu 6/20/13 18 Vanessa Romero

Power Design 7 days Thu 5/30/13 Fri 6/7/13 8 Christa Hamilton Clarissa McKay

ADS Simulation 7 days Tue 7/9/13 Wed 7/17/13 15 Clarissa McKay

Development 36 days Thu 7/18/13 Thu 9/5/13 PCB Express Order 28 days Thu 7/18/13 Mon 21

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8/26/13 CADD Design 7 days Thu 7/18/13 Fri 7/26/13 21 Christa Hamilton

Circuit Construction 14 days Wed 8/7/13 Mon 8/26/13 24


3-‐D Printing Mechanical 8 days Tue 8/27/13 Thu 9/5/13 25 CADD Design 7 days Tue 8/27/13 Wed 9/4/13 25 Christa Hamilton

Printing & Placement 1 day Thu 9/5/13 Thu 9/5/13 27 Christa Hamilton Clarissa McKay

Performance & completion 59 days Fri 9/6/13 Wed 11/27/13 26

Alpa Testing 29 days Fri 9/6/13 Wed 10/16/13

Test Repeatability & Build 2nd Circuit 14 days Fri 9/27/13

Wed 10/16/13 26


Feature Testing in App 7 days

Fri 9/6/13

Mon 9/16/13

26

Vanessa Romero

Test Algorithms -‐ Forecasting 7 days Fri 9/6/13 Mon 9/16/13 26 Vanessa Romero

GUI Function Testing

7 days

Fri 9/6/13

Mon 9/16/13

26

Vanessa Romero

Hardware Testing/Wear for 1 Week 7 days Fri 9/6/13

Mon 9/16/13 26

Christa Hamilton Clarissa McKay Vanessa Romero

Debugging 7 days Tue 9/17/13 Wed 9/25/13 35 Vanessa Romero

Beta Testing 30 days Wed 10/16/13

Tue 11/26/13

Wear Band for Longest Period Without Recharging 30 days

Thu 10/17/13

Wed 11/27/13 31

Final Report 7 days Thu 10/17/13 Fri 10/25/13 31 Clarissa McKay

Final Power Point 7 days Tue 11/19/13

Wed 11/27/13 Christa Hamilton

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Proposed Budget

Quantity Manufact part # Manufacturer Description Price per Hour or Incident Total

2 CC2430ZF128RTCR Texas Instruments

RF System on a Chip - SoC Sys-on-Chip Solution Transient Response $11.65 $23.30

2 MAX6947ATE Maxim Integrated

LED Lighting Drivers 10-Port Constant Current LED Driver $2.17 $4.34

10 SMF-HM1340ID Lumex

LED Circuit Board Indicators Surface Mount LEDs $0.66 $6.60

3 CBC050-M8C Cymbet

Electronic Battery 50uAhr EnerChip 8x8 MLF C Temp $4.20 $12.60

2 CBC3150-D9C Cymbet

Electronic Battery 50uAhr EnerChip and CBC910 9x9MLF C Temp $5.20 $10.40

3 103KT1005T-1P Semitec Thermistors - NTC 103kohm 1% 0402 $2.21 $6.63

3 103KT1608T-1P Semitec Thermistors - NTC 10K Ohms 1% 0603 $2.19 $6.57

2 1451-015A-T Measurement Specialties inc

Board Mount Pressure / Force Sensors 0-15psia TUBE PORT $23.40 $46.80

2 192-501DET-A01 Honeywell

Thermistors - NTC 500KOHM Radial Thermistor NTC $10.94 $21.88

4 PD15-22B/TR8 Everlight Photodiodes Infrared Photodiode $0.34 $1.36

5 ISL28208FRTZ-T7A Intersil

Precision Amplifiers ISL28208FRTZ 40V LW RAIL OUT SNG SUPP $4.99 $24.95

2 MAX4781ETE+T Maxim Integrated

Multiplexer Switch ICs 8:1 Low Voltage Analog MUX $4.32 $8.64

2 ML-621S/DN Panasonic

Coin Cell Battery 3V 5.0 mAh RECHG 2PIN FLAT SMT-NO INS $3.71 $7.42

1 V22B Mide

Energy Harvesting Modules Piezoelectric Energy Harvester $49.00 $49.00

2

Pixil Agency 3D printing Service (mechanical) $100.00 $ 200.00

2

PCB express Circuit board $51.00 $ 102.00

TOTAL

$ 532.49

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Deliverables

1. A prototype wristband. 2. An Android app for use with wristband. 3. Project report. 4. Log data from actual use of wristband.

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References

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All About Circuits. 2013. <http://www.allaboutcircuits.com>.

Bauman, Joan E. "Basal body temperature: unreliable method of ovulation detection." Fertility and sterility 36.6 (1981): 729.

Bergman, Per. "Sexual cycle, time of ovulation, and time of optimal fertility in women: Studies on basal body temperature, endometrium, and cervical mucus." Acta Obstetricia et Gynecologica Scandinavica 29.S4 (1950): 1-‐139.

Berkshire Hathaway Inc. mouser.com. <http://www.mouser.com/Embedded-‐Solutions/Sensor-‐Modules/_/N-‐8qbx6?Keyword=sensors&FS=True>.

Boano, Carlo Alberto, et al. "Accurate temperature measurements for medical research using body sensor networks." Object/Component/Service-‐Oriented Real-‐Time Distributed Computing Workshops (ISORCW), 2011 14th IEEE International Symposium on. IEEE, 2011. Web. 4 Apr 2013.

Boysen, Earl. Electronics Projects for Dummies. Hoboken: Wiley Publishing, n.d.

Chen, Wenxi, Masumi Kitazawa, and Tatsuo Togawa. "HMM-‐based estimation of menstrual cycle from skin temperature during sleep." Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE. IEEE, 2008. Web. 4 Apr 2013.

Deng, Zhong-‐Shan, and Jing Liu. "Effect of fixing material on skin-‐contact temperature measurement by wearable sensor." Medical Devices and Biosensors, 2008. ISSS-‐MDBS 2008. 5th International Summer School and Symposium on. IEEE, 2008. Web. 4 Apr 2013.

Fitbit One. Fitbit One. 2013. Web. 20 March 2013. < http://www.fitbit.com/one>.

Flesch, Udo. “Precision temperature transducer for measuring the surface temperature of the human and animal skin.” US Patent 3938387. 17 Feb. 1976.

Friedman, Eric N, Park, James, and Gee Jao Yuen, Shelten. “Portable monitoring devices and methods of operating same.” US Patent 8311770. 13 Nov. 2012.

Hilgers, Thomas W., and ALAN J. Bailey. "Natural family planning. II. Basal body temperature and estimated time of ovulation." Obstetrics and gynecology 55.3 (1980): 333.

Institute for Reproductive Health, Georgetown University, “Standard Days Method -‐ Implementation Guidelines for Program Personnel” (2005), Web, 20 March 2013 <http://www.irh.org/SDM_Implementation/pdfs/SDM_Implementation_Guide_English.pdf>.

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Jennings, Victoria H., and Marcos Arevalo. "Menstrual cycle monitor." U.S. Patent No. 6,747,917. 8 Jun. 2004.

Lenton, Elizabeth A., Gerald A. Weston, and Ian D. Cooke. "Problems in using basal body temperature recordings in an infertility clinic." British medical journal 1.6064 (1977): 803.

Mason, Martin K. “Enhanced functionality and accuracy for a wrist-‐based multi-‐parameter monitor.” US Patent 8182429. 22 May 2012.

Matsumura, Kenneth N, “Device for computer-‐assisted monitoring of the body.” US Patent 5,050,612. 24 Sep. 1991.

Moghissi, K. S. "Accuracy of basal body temperature for ovulation detection." Fertility and sterility 27.12 (1976): 1415.

Nike+ FuelBand. Nike+ Fuelband. 2013. 20 March 2013. < http://www.nike.com/us/en_us/c/nikeplus-‐fuelband>.

Royston, J. Patrick. "Basal body temperature, ovulation and the risk of conception, with special reference to the lifetimes of sperm and egg." Biometrics (1982): 397-‐406.

Scherz, Paul. Practical Electronics for Inventors. 2nd. New York: McGraw Hill, n.d.

Suunto. Suunto. 2013. Web. 20 March 2013. < http://www.suunto.com/us>.

UP by Jawbone. UP by Jawbone. 2013. Web. 20 March 2013. < https://jawbone.com/up>.

Weng, Yuan Sung. “Wristwatch with functions of basal body temperature charting and ovulation phase informing.” US Patent Application 20040081024. 29 April 2004.

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