Introduction: Wearable Device

Picture of Wearable Device

An Integrated Smart Wearable Device that can solve the challenge of space

station – Rock-IT Fashion ; which helps astronauts to Communicate with

their team in the space station using HD Real-Time live Streaming over

internet (Wi-Fi ) , Text-Chat , warning messages using (ZigBee 802.15.4)

protocol (wide range ) , Monitoring Health Status using Real-Time Monitor

for Heart Pulses , Temperature and pressure Sensors which send its data to

(C# Software on the space-station using ZigBee communication protocol

furthermore show this rates to the astronauts on the LCD using python GUI

( Graphical user Interface) on the raspberry pi 2 Micro-Computer ;

for Entertainment using our device astronauts can connect with the

internet and social Networks like what Nasa’s Astronaut “Scott Kelly “ did

during his “year in space” journey , Astronauts can play Games , Videos .

- All Astronauts Data that our system collect saved as a log file on the

device and on the space station software with date and time, this Big data

can be analyzed with the software tools commonly used as part of

advanced analytics disciplines such as predictive analytics, data mining . as

a part of our future plan to improve our device , it will be an autonomous

Device which use the analyzed data to make an action such as sending a

specific music to the astronaut which suitable with his mood , health status

.

Hint : using electronics in space is not reliable due to the radiation , but any

electronics material in space have to pass 7-Layers of testing to be reliable

in space , such as the electronics devices that GOMSPACE company offering

for Cube-Sats.

Our system is divided into 5 Main Sub-systems:

1- Hardware System: Sensors, Hardware components.

2- Software System: Space Station Software for communication and data

accusation – Wearable device software for the astronauts.

3- Communication System.

4- Power System.

5- Wearable Fashion Design .

Step 1: Our System

Picture of Our System

a. Hardware System

1- Raspberry Pi2 Micro-Computer which has A 900MHz quad-core

ARM Cortex-A7 CPU , 1GB RAM , VideoCore IV 3D graphics core .

2- HDMI Touch Screen 5” for the raspberry pi Micro-Computer .

3- Arduino Nano – Micro-Controller that interact with the sensors and

send data to the space station and wearable device software GUI .

4- Heart Rate Sensor

Studies have shown that spaceflights impacts the astronauts heart rates

negatively especially on long term so heart rate is monitored using heart

rate sensor (ECG) where the heart pulses is presented using the

cardiogram in real-time.

i. Understanding the ECG

In general terms, let’s look at what an ECG is representing and

how we’re able to sense it. The ECG is separated into two basic

Intervals, the PR Interval and the QT Interval, described below.

ii. PR Interval

The PR interval is the initial wave generated by an electrical

impulse traveling from the right atrium to the left. The right

atrium is the first chamber to see an electrical impulse. This

electrical impulse causes the chambers to “depolarize”. This

forces it to contract and drain deoxygenated blood from both

the Superior and Inferior vena cava into the right ventricle. As

the electrical impulse travels across the top of the heart it then

triggers the left atrium to contract. The left atrium is

responsible for receiving newly oxygenated blood from the

lungs into the left ventricle via the left and right pulmonary

veins. The pulmonary veins are red in the diagram because

they are carrying oxygenated blood. They are still called veins

because veins carry blood towards the heart. Science!

iii. QT Interval

The QT Interval is where things get really interesting. The QRS

is a complex process that generates the signature “beep” in

cardiac monitors. During QRS both ventricles begin to pump.

The right ventricle begins to pump deoxygenated blood into

the lungs through the left and right pulmonary arteries. The

pulmonary arteries are blue in the diagram because they are

carrying deoxygenated blood. They are still called arteries

because arteries carry blood away the heart. Science, Again!

The left ventricle is also beginning to pump freshly oxygenated

blood through the aorta and into the rest of the body. After

the initial contraction comes the ST segment. The ST segment

is fairly quiet electrically as it is the time where the ventricles

waiting to be “re-polarized”. Finally the T wave becomes

present to actively “re-polarize”, or relax the ventricles. This

relaxation phase resets the ventricles to be filled again by the

atriums.

5- Temperature sensor

Astronauts are exposed to a wide variety of temperature during their

missions which can range from -250F to 250F so a temperature sensor is

used to monitor the temperature and gives a warning message when

necessary.

6- Pressure sensor , one of important concerns of the factors which impacts

the health of the astronaut is that the increased pressure in the eye may

cause what is called “Ocular hypertension” which causes problems in the

vision and may lead to blindness so a pressure sensor is used to keep track

of the pressure and gives a warning message if the pressure exceeds a

certain limit.

7- IMU (Inertial measurement unit) – 9DOF – Accelerometer,

gyroscope, Magnetometer.

in our plan of future work we added IMU in order to develop a games

like Smart phones apps which depends on gyroscope , Accelerometer

sensors .

8- HD-Web-Camera 720p (Microsoft 3000 HD)

Which has the ability to stream a real-time video with delay 40 ms with 30

frame per second through Wi-Fi dongle that connected to raspberry pi

micro-computer and works as a webcam server over localhost (raspberry pi

ip port 8080 ) .

Step 2: B.Software System

Picture of B.Software System

1- Space Station Software.

The main aim of our GUI is to provide the space station with a live feed

of the current astronaut status in order to ensure a total supervision

over the astronaut and monitor his current

Health condition in addition to providing an easy and simple means of

communication with the astronaut.

GUI Features:

o Health monitoring:

 Monitoring the heart statues via a live cardiogram.

 Live feed for the current temperature.

 Live feed for the current pressure.

o GUI provides warning messages if the temperature or the pressure

exceeds certain limits.

o Ease of communication support:

o Providing a high quality live streaming for the camera fixed on the

astronaut suit.

o Chat facility between the space station and the astronaut via the GUI

on the astronaut wearable.

o All the received data, received and sent chat messages are logged

and displayed in a user friendly way accompanied by the

corresponding date and time.

o Saving all data as txt log files.

2- Wearable Device Software

A GUI programmed by Python that allow Astronauts to show their

health status, sensors reads with options of Chat, on-screen keyboard,

keystroke software that save all astronauts keyboard inputs on the

screen, option to start live streaming.

- Saving all data as excel log files .

- This application also contains bash script to run the required packages

in boot.

3- Arduino Code

Interfacing code with the sensors and ZigBee module to send a the data

in a way of serial communication with Raspberry pi “wearable software

through usb cable “ and Space station software by ZigBee Ad-hock

network .

c. Communication System

 Usb Serial Communication between Arduino and Raspberry pi.

 ZigBee Ad-hock Network Serial Communication with Arduino and

 Wi-Fi Connection between Raspberry pi and Router ( over Network )

d. Power System

We are powering our system using 5000 mah battery with output current

up-to 2A which is very enough for our system to run more than 2-hours .

space station software.

|| internet .

e. Wearable Fashion Design

Using two armbands with us to contain our project in a nice-look way .

Step 3: Continue

III. Future work

a. Size and Design , Decrease size , use embedded devices not educational

b. Big Data Analytics and statistics.

c. Autonomous System – Machine learning .

d. Astronauts profiles.

e. Motion Detection Flex sensors, as a new way of control our system

f. improve GUI .

g. IMU Sensor Based Games .

IV. Files

To get our soft copy of our documentation and files , codes from the link

below :

https://github.com/Orionteamnsac/Orion-s-Wearable-...

Comments

DIY Hacks and How Tos (author)2016-07-18

Awesome wearable tech project. I hope that you will continue to develop this.

thank you, we work on it :) .

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