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FYP PLAN

The first week to design the plan, and decide one by comparing.   

PLAN A:

1.     SpO2: Blood oxygen saturation (The normal oxygen content of the human body is about 90%.)

2.     Hardware:

2.1 Arduino Uno (5-volt working voltage can be directly connected to the computer USB)

2.2 Heart rate sensor: wrap the fingers around the cloth. （MAXREFDES117#）

Why choose MAXREFDES117#？

（http://www.farnell.com/datasheets/2140571.pdf）

 • Optical Heart-Rate Monitor and Pulse Oximetry Solution

• Tiny 12.7mm x 12.7mm (0.5in x 0.5in) Board Size

• Low Power

• Device Drivers

• Free Algorithm

•        Highly-integrated, small-size sensor

•        Ultra-low power consumption

2.3 5 cables that can be used to connect the MAXREFDES117# with the

Arduino board

2.4 One USB cable that is compatible with the Arduino board

3.     Software: Arduino-1.8.2-windows

4.     The principle of calculation:

SPO2=HBO2/(HBO2+HB) x100%

In the lungs, red blood cells are attached to hemoglobin, the symbol is HB, one is oxyhemoglobin, which is HbO2, and there is reduced hemoglobin. When the arteries pass back into the cervical veins through the capillaries, the oxygen molecules fall off.

The shortcomings of Plan A: As for Arduino Uno, the operating frequency is low, the function is single, and the memory is relatively small.

The advantage of Plan A: The Arduino Uno development board has been used in the past, and it is easy for beginners to get started. The instructions are readable and easy to write code.

Plan B

Hardware:

1.      Heart rate sensor (MAXREFDES117#)

2.      Maxim Integrated MAX32600MBED# board

(http://www.farnell.com/datasheets/2124359.pdf)

The MAX32600MBED provides a convenient platform for evaluating the capabilities of the MAX32600 microcontroller. The MAX32600MBED also provides a complete, functional system ideal for developing and debugging applications.

3. 5 cables that can be used to connect the MAXREFDES117# with the MAX32600MBED board.

4. One USB cable that is compatible with the MAX32600MBED board.

Software: Mbed

Mbed is a prototype development platform for ARM processors, which includes free software library (SDK), hardware reference design (HDK) and online tools (Web).

The advantage of Plan B: As for MAX32600Mbed, the operating frequency is high, with more function and the storage capacity is relatively large. Besides, the mbed development system is very convenient, can be developed online, compatible with C++, C language and Java.