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Welcome to Heart Guard Technologies New Product Presentation. Company Structure. BRYAN SCHURKO – CEO STEPHEN CZERNIEJ –CFO JOHN AZER –VP OPERATIONS VAHID SHABABI –VP MARKETING. Background & Motivations. Why did we choose this Project? - PowerPoint PPT Presentation
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Welcome to Heart Guard Technologies
New Product Presentation
Company Structure
• BRYAN SCHURKO – CEO
• STEPHEN CZERNIEJ –CFO
• JOHN AZER –VP OPERATIONS
• VAHID SHABABI –VP MARKETING
Background & Motivations
• Why did we choose this Project?
• Why should you buy this product and not the similar one?– Cost Analysis– Functionality
Time Line
• How We Approached?
• Why We finished On-Time (Maybe a bit early!!)
Life Guarding and Rescue Scenarios
• What does a lifeguard do?
• How does a lifeguard deal with emergency situations?
• Vitals – Airway, Breathing, and Circulation
Changes in the Lifesaving World
• Lifeguards are unable to find pulses in emergency situations creating stress and poor first aid assessments.
New Protocol
• No check for Pulse/Circulation in victim assessment - considered ineffective.
• Give CPR to victims if not breathing ASAP, regardless of signs of circulation
The Need to Find Circulation in a Victim for a Lifesaver/Rescuer
• To limit stress and shock for the rescuer.
• To ensure fast assessment and proper first aid for victims.
• To relay accurate and effective information to the paramedics.
Hardware Overview• Waterproof box• Sensor circuit• PIC Microcontroller• LED display• Infrared Sensor• Audio Cable• Battery• Switch
Waterproof box• Reasons for choosing this box:
1. Waterproof
2. Unique color that sticks out
3. Hard to break or crack (Better durability)
4. Easy access to internal components such as the battery, PIC, etc.
Sensor CircuitS
igna
l IN
Sig
nal O
UT
Filter
• Contains capacitors and resistors of certain value, designed to filter out noise picked up from the surroundings
Main Sensor Circuit
• Detects every heart pulse.• Major component is: LM6484 CMOS OpAmps
• Benefits:
1. Does not need a negative rail like most opamps, hence, only one battery is necessary for powering it.
2. Low power consumption.
3. Convert the input signal to a rectangular wave (simplifies signal analysis)
One-Shot Timer
• Removes extra pulses in the digital signal coming
from the main sensor circuit.• Composed of a 555 timer
• Benefits:
1. Found in almost all electronic stores
2. Reliable
3. Easy to use
PIC Microcontroller
• Analyses the signal coming out of the one-shot timer.• Benefits:
1. A group member (Bryan Schurko) was well experienced with this model.
2. Cheap compared to other microcontrollers
3. Provides many I/O’s
4. Low power consumption
Model: 16F877A
LED Display• Heart pulse is displayed on a 7-segment
LED display.• Benefits:
1. Cheaper than an LCD display
2. Easier to program than an LCD
3. Consumes less power than an LCD
Infrared Sensor
• Model: Cateye
• Clips onto human finger
• Contains Led infrared transmitter on one side, and a receiver on the other side.
• Other end of the sensor connects to an audio connector.
Audio Cable
• The sensor jack goes into an audio cable.
• Audio cable goes through the box, into the sensor chip, for pulse detection.
Battery
• 9V Alkaline Battery
• 5V voltage Regulator is used
to step down the 9V coming
out of the battery, into 5V,
which goes into the sensor
circuit.
Switch
• External to the box
• Covered with a waterproof casing.
System Overview
Ear sensorSignal Filter
and AmplifierCMOS Circuit
PIC Microcontroller
7-SegmentLED Display
External Internal Circuitry Display
Infrared Pulse Sensor• Small non-invasive finger probe• Detects light levels by using a infrared LED
and photo-sensor– Hemoglobin absorbs photons, sensor detects this
Analog Signal Conditioning• Small, noise prone signal output by sensor
• Intermediate circuit– Filters, amplifies, and converts to discrete levels
Original (Sensor) Signal Filtered/Amplified Signal Discrete Signal
Processing: Microcontroller• PIC Microcontroller accepts digital signal from
circuit• Contains pulse error sensing algorithms• Averages previous 10 pulses to suppress errors
Detects PeriodDetermines if pulse width is adaquate
Average previous 10 proper pulses
Digital Signal To LED Display
Processing: Error Suppression• If the pulses are outside of our defined range or pulse
widths are too small, the pulse will be ignored• Red light turns on when enough pulses are faulty
Signal going into PIC
Visual signal after error suppression
Output: 7-Segment LED
• Output is displayed on three 7-segment displays
• Number displayed in beats per minute
Conclusion
• Out Future Plans– Marketing and Sales
– Technical
Salary
• Total Budget for this Phase $100,000– Bryan 25,000– Stephen 25,000– John 25,000– Vahid 25,000
• It was Based on– Collaboration
We Would Like to Thank
• Dr. Andrew Rawicz
• Mr. Mike Sjoerdsma
• Mr. Brad Oldham
• Ms. Paris
• Bruce Warby - Biomedical Engineering Ridge Meadows Hospital
• Marge Czerniej - Registered Nurse at Ridge Meadows Hospital
• Jusytna Iwan - The Victim - 4th Year Criminology Undergrad
• John Czerniej - SFU Facilities Management • Dr. Ash Parames – Advisor
• Fred Heep - Engineering Lab Technician