Some posts need no Title-2

I comforted myself at the back of 50 seater with my crew…!!

All took their ID cards out and got ready with complete formals except few guys like me …

I took Rajeev’s shirt..

for the fact i dint picked even a single formal dress for the tour…!!

It took almost 40 odd minutes to reach the CMTI from the rail station..

those 40 odd minutes had given us little glimpse of bustling metro life..!

The wallposters of kannadaWOOD(Don’t know what to call!!)

I don’t know why they got my attention…

those actresses are the people who tried their luck at tollywood and failed…!!

I saw My childhood Fav star Nikhita in “GUN” wall poster..!!

And the most amazing thing is there are some people Called HEROES looked like the fellows who were denied admission in Mysore ZOO..!!

There i saw “5 Idiots”

Something that looked like” Kalamanja”(I really dont know how to pronounce Kannada words…!!)

I felt so sorry for the audience of mighty Bengaluru Metro People..!!

When compared to those stars even OM (Okka Ma…..) is lil better…!!

Suddenly the bus stopped at a junction huge traffic…!!

A huge construction under progress….

We don’t know that it was a part of B’lore Metro..!!

There is a huge iron pillar..

something like huge plate was attached to it…

We had a heated argument about whether the plate is riveted or bolted…!!

Then came a guy known for his photography with his brand new canon Mr.Mahendra Pedapati photographed that thing and zoomed that picture and showed that it was riveted..!!

i own my stake of Rs.10/- with Kesh..!!

Few minutes later we reached CMTI @ CVRamanNagar..

The lunch was already arranged there for us…

I expected lot from the kannada people…

But i just had to adjust myslef with Chapathi, 2 cups rice….

Sambar and the curd (Sour..!!)….

all for just Rs.50/-

Started into industry …!!

They just don’t allow Cameras or phones into industry…!!

Immediately after security check we were all allowed into that esteemed ,serene campus..!!

We were divided into 2 groups and set sailed for the next 3 hours..!!

The group which consisted me rushed into Rapid prototyping block ,Where a guy called Vinod waiting for us ..!!

He explained What prototyping is

and why it is being used and alll…..

It is the only process where we can produce a sphere inside another sphere freely rotating and without seam that in single step…!!

The process is supported by A slicing software and a machine which manufactures…

Somebody told us to note down the specifications of that machine….

I wonder what we do with them…??!!

INDUCTIVE CHARGING

In the future all electronic devices will be wirelessly powered. Small, battery-powered gadgets make powerful computing portable.

The battery charger should be capable of charging the most common battery types found in portable  devices today.  In addition, the charging  should be  controlled from the base station and a bidirectional communication system between  the pickups  and base  station  should be developed.

Inductive Power Systems:

Inductive Power Transfer (IPT)  refers to the concept of transferring electrical power between two isolated circuits across an air gap.  While based on the work and concepts developed by pioneers such as  Faraday and Ampere, it  is  only recently that IPT has been developed into working systems.

Essentially, an IPT system can be divided into two parts;

• Primary and
• Secondary.

The primary side of the system is made up of a resonant power supply and a coil. This power supply produces a high frequency sinusoidal current in the coil.  The secondary side (or ‘pickup’) has a smaller coil, and a converter to produce a DC voltage.

Working of Inductive Power Transfer:

In this system communications signals are encoded onto the waveform that provides power to the air gap. Communication from the primary side to the secondary is implemented by switching the power signal at the output of the resonant converter between its normal level  and a lower level which is detectable by the pickup but still provides enough power to control the pickup microcontroller. This process is called Amplitude Shift Keying (ASK). This is achieved by varying the output voltage of the buck converter which provides an input DC voltage to the resonant converter.

Communication from the secondary to the primary is achieved by a process called Load Shift Keying (LSK).  This involves varying the loading on the pickup.   Any load on the pickup will reflect a voltage on the primary circuit proportional to the load.  Therefore a variation in the load on the pickup can be detected by the charging station.

The communications system must provide two discrete levels of voltage reflected onto the primary side,  to represent the on and off states for digital communications. The difference must be easily detected on the primary side to provide a robust communications channel. Signals are decoded by simple filters and comparators which feed a  digital signal to the microcontrollers.

Advantages:

IPT has a number of advantages over other power transfer methods  – it is unaffected by dirt, dust, water, or chemicals.  In situations such as coal mining IPT prevents sparks and other hazards.  As the coupling is magnetic, there is no risk of electrocution even when used in high power systems.  This makes IPT very suitable for  transport  systems where vehicles follow a fixed track,  such as  in factory materials handling.