Skip to main content

BASIC NEEDS TODAY: SMART HOME, SMART WEARABLE AND HEALTHY FOOD

      


          It is a night 10:00 p.m.  I locked the house doors.  I checked security camera images on my smart phone.  It is all o.k.  I opened another app; switched off all the smart lights in the house and dimmed the hall-light. Then I tapped my smart watch.  It said, "you walked 7.2 km today and burned 2700 calories.  The heart-beat at the moment is 81 per minute.  The resting heart rate is 71 today".  I felt satisfied.  I switched on the "home projector".  It cast a big image on the wall of the hall.  I put on the blue-tooth head phone (I do not want to wake up others).  I begin to watch my favorite serial "Game of throne".  This is not a wild imagination but a reality in many modern Indian homes.  The technology is affordable and accessible to Indians today.

      Out of many smart wearable and devices, smart watch stands prominently today.  Let us explore it deeply so that we can appreciate and exploit the device better.

     First, let us find out how it measures the heart-rate.  At the back of the watch, there are two green LED lights and a photo cell.  When the watch is worn on the wrist, it shines the light on the skin.  Red blood readily absorbs green light.  When the heart beats (pumps out blood), there is a surge of blood flow in the veins and hence more absorption of green light.  When the heart takes 'a bit of rest'  between the beats, there is less flow and less absorption light.  This is how the watch recognizes the heart-beats.  The 'number of beats per minute' is sent to the smart-phone through blue-tooth and the phone sends the data to the internet and the company's servers.  There, the data is interpreted using algorithms(software) and the human-friendly information is sent back to the app on our smart phone.  Then a clear graphical message is displayed on the phone.

      Besides optical sensor, there is a micro accelerometer with a gyroscope which measures our walking, running steps, and sleep pattern.  There is an altimeter.  It measures the height we climbed,  be it a mountain or a staircase.  Some watches measures body temperature also and some have GPS.

      Hence the sensors collect the data and the algorithms interpret them in a user-friendly way.  From the watch and its app, we get the information like, How is the quality of our sleep; How healthy is our heart; what is heart resting-rate; How much calories we burned; How to shed weight; How active we are in a day and so on. So get a smart watch and #GetFitWithFlipkart  .

     WHO's report says, every year around 25 million people meet their end because of cardiovascular diseases.  Hence, it is a wonder, we do not still see activity band on everyone's hand.

      These words, "obesity, diabetes, physical inactivity, blood pressure, sleep patterns, lifestyle diseases",  figure in all the health-reports and articles today.  Hence we need these wearable digital monitors badly.

     Google glasses, smart shoes, smart bracelets and rings, smart clothes and bags, are going to be popular as smart watches in the future.  Surveillance smart camera hooked to the internet is a boon today.  You can watch your home and office from anywhere in the world. (There is a wireless door bell which when pressed by a person,  takes the photo of the person immediately and sends it to the phone of the owner).


      Tomorrow, all the electrical and electronic appliances in our home can be controlled remotely using apps on the phone. We have traveled a long way from stone age to the digital age.  Have a smart, healthy, long and happy digital life. Let us start #SmartHomeRevolution now.

"Swiss watch may be the icon of wealth
But a smart watch is the icon of health".

 "You may have a small home
But you can make it smart".       
           ------------------------------------------------------------------
Labels:

Comments

Post a Comment

Popular posts from this blog

THE EARTH, A SUPER ORGANISM

     JOIN MY COURSE: "Become a programmer in a day with python"       A man called 'love lock' (what a name) proposed a theory called Gaia theory, named after Greek Goddess.      It says, "Earth is a self-regulating organism like a human being.  The organic life in it interacts with in-organic matter and maintains atmosphere, temperature and environment".  Hence the earth is still suitable for the life to thrive.      Imagine, in a particular place, there are lot of flowers.  Some flowers are white and some are darkly coloured.  We know, white reflects light and heat while dark absorbs the same.  White flowers can thrive in hot climate.  But dark flowers requires cold climate.  The absorption and reflection balances and the environment reaches average, warm temperature at which both the flowers can co-exist.  This is the essence of "Gaia" theory.      On our earth, the oxygen constitute 20% of the atmosphere.  The oxygen level is always mai
3 comments
Read more

THE PARABOLA

          A jet of water shooting from a hose pipe will follow a parabolic path.  What is the so special about parabola.    Y= x^2 Draw a graph for the above equation.  It will result in a parabola.  This parabola is also called unit parabola.  Any equation involving square will yield a parabola. Example:  Y = 2x^2 +3x+3 (also called quadratic equation)    X= 2 and -2, both  satisfies the equation 4 = X^2.  Parabolic equations always have two solutions.     Any motion taking place freely under gravity follows parabolic path. Examples:   An object dropped from a moving train,   A bomb dropped from flying plane,  A ball kicked upwards.      If a beam of light rays fall on the parabolic shaped mirror, they will be reflected and brought to focus on a point.  This fact is made use of in Dish Antenna, Telescope mirrors, etc.      Inverted parabola shape is used in the construction of buildings and bridges.  Because the shape is able to bear more weight.      A plane
Post a Comment
Read more

DISORDER IS THE "ORDER OF THE DAY"

         Imagine a balloon full of air.  The air molecules are moving randomly inside the balloon.  Let us pierce the balloon with a pin.  The air rushes out.  Why should not the air molecules stay inside the balloon safely and ignore the little hole?  That is not the way the world works.  The molecules always "want to occupy as many states as possible".  Hence the air goes out in the open to occupy more volume.   The things always goes into disorder (entropy) and the disorder increases with time.  The above statement is what we call "second law of thermodynamics".      Consider a cup of coffee on the table. Suppose the heat from entire room flows to your cup of coffee, the coffee will boil and the rest of the room will freeze.  Freezing means bringing things to order and arrangement.  It violates the second law.  Hence it will never happen.  Hence heat must flow from high temperature to low temperature and not the other way.        The air molecules in y
Post a Comment
Read more