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The Lambda Team

The Lambda Team. Anthony Shelton Quintelle Griggs Jonathan Killen Ki Chan Hauw Faculty Advisors Dr. James Harden Dr. Lori Bruce. Problem. More than 2 million people in the U.S. are at high risk of having heart attack.

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The Lambda Team

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  1. The Lambda Team Anthony Shelton Quintelle Griggs Jonathan Killen Ki Chan Hauw Faculty Advisors Dr. James Harden Dr. Lori Bruce

  2. Problem • More than 2 million people in the U.S. are at high risk of having heart attack. • It would be helpful if there was a way for these people to monitor their heart. • So we have a problem… That is the way our project focuses on how we can utilize this problem and find a solution. Solution • We know there is device out there that can monitor heart rate but: • either big, not portable, and expensive. • So we need to design a device that not only monitor the heart rate for variations, but also small, portable, and inexpensive.

  3. The Personal Heart Rate Monitor Microprocessor MC68HC811E2CFN2 Analog + Digital Jonathan Anthony & Quintelle Ki Resistors Tantalum (Capacitors) Ceramic (Capacitors) Max 4194 Max 1242 Max 666 Max 4244 Max 4240 Belt for the ECG

  4. Input Voltage Range Converter Resolutions Common Mode Rejection Ratio CMRR Battery life Amplifier Gain Size Cost Frequency response High-Pass Filter Low-Pass Filter Sampling Rate Average Load 5V 10 bits 115dB 500hrs 500 3.5 x 5 inches < $150 018Hz - 16Hz Cutoff frequency 0.18Hz Cutoff frequency 160Hz 500 per second 1.39mA @ 6% duty cycle Specifications

  5. Future Implementation • Person having heart attack could be located using GPS. • Our device will able to send signal to alert care giver using BlueTooth Technology. • Build into any cellular-phone. • You can download your heart rate and actually review your signal right on Personal Computer. • Software could be come along with the device. • Dip switch • Allow users to enter their own Min and Max heart rate.

  6. Issues Concerns • Realistic Constraints • The operating system of the assembler for the compiler is only available for Windows 95/NT. We will be using the ECE Department milling machine, which has certain specifications that must be met for PC Board construction. We will also be limited on the life of our battery. • Engineering Standards • Our device will comply with the ANSI Medical Device Standards Board (MDSB) and the IEEE 1073 Medical Information Bus standards. • Environmental Implications • Our device will save battery power by using as many low power components as possible and taking advantage of shutdown modes of some components.

  7. Issues Concerns Cont. • Sustainability • Personal ECG devices will be sustainable because there will always be a need to monitor the heart rate of people with heart conditions and are high-risk for heart attacks. • Economics • Our device should be less than $150 so that all hospitals will be able to buy it. • Health and Safety • Product does not shock patient; product is comfortable to wear • Our device does not cause any harm to the patient and it is comfortable to wear. • Low radiation that does not harm the patient.

  8. Issues Concerns Cont. • Ethical Concerns • Our device will comply to the IEEE Ethical Standards • Social Concerns • The device allows the patient more freedom by allowing them to be monitored outside the hospital. Also, the product is small enough to be discretely worn. • Political • Medicaid or medical care would pay for the device and other needs for the patient to use. • Manufacturity • Since our device will be cheap to manufacture and all components are readily available, it will be very easy to manufacture.

  9. Timeline Deciding Scope for the project Develop idea. August 23 August 24 Scope and advice from Dr. Lori Bruce August 24 August 27 CPE Design Worksheet and Charter document due. August 27 August 30 Assign Individual Part Jonathan: Differential Amplifier Anthony: A/D Converter Quintelle: Microprocessor Ki: Printed Circuit Board September 1 September 4 September 4 September 8 Research prices and Information on individual parts September 11 September 18 Deciding parts, and ordering part September 25 September 30 Research for simulator and Debugger for Microprocessor October 2 Slide and prepare for Critical Design Review October 10 October 13 October 16 Simulator found for Microprocessor(Showdow11), and begin flowchart October 25 October 30 November 2 Layout for PCB developed, Flowchart developed Rough draft due November 21 November 25 November 22 PCB send to lab for developed, Preparing for final design review, Slide developed November 27 November 28

  10. Deciding Scope for the project Develop idea. Prepare worksheet and scope. Charter and CPE Design Worksheet Assign Individual Part Jonathan: Differential Amplifier Anthony: A/D Converter Quintelle: Microprocessor Ki: Printed Circuit Board

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