Thank you very much, Mai kun. He submitted this article. He is now an internship student of the Department of Information and Computer Sciences of KAIT. He is a fourth year student of Chlalongkorn University, and he is supposed to proceed to the master's degree after he returns to Chula. Thanks to him, our research makes big progress and in addition, the atmosphere of our lab become brighter and more active.
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On Friday, 7
July 2017, we had a little tour at Railway Technical Research Institute (RTRI)
in Kokubunji and NTT (Nippon Telegraph and Telephone) Musashino R&D Center.
It is a group of 20 people, 11 Chula students, 7 KAIT students, Prof. Hiroshi Tanaka
and office manager of the international department.
This group picture was taken at RTIT
In the
morning we visited RTRI. It is an amazing fact that Japan railway research has
continued over the century.
There, we
visited a few of their test station. But because of photograph is prohibited, we
don’t have any photo of their testing site. The first station we visited was a pantograph
testing site. It is made to test the vibration of the pantograph at speed up to
500 km/hr and acceleration up to 2 m/s^2 (If I remember it right ><)
The guide (blue helmet) talked about RTIT faculty and where are we going to visit today. This is the last picture we can take before visit their testing site.
This is a pantograph. Its job is to keep the contract between the train and the electric wire above.
Next, we
visited earthquake test site. The earthquake is simulated on a horizontal
vibration table which is 1 meter by 1 meter. The amazing thing here is the
vibration isolation system they have. The table is place on a HUGE MANY TON
concrete with a lot of air spring and damper below.
Next, we
visited train speed test station which can take up to 700 km/hr (I even don’t
think this is correct lol). The 1 or 2 car trains will be put on a giant machine
that speed up the wheel of the train while can be generate some extra vibration
to simulate a rail track.
The last
station we visited was a landslide test site. They simulate landslide by make a
ton load of sand or soil into a like-triangle shape like slope on the mountain,
then drop some rain by water sprinklers above and then observe some landslide.
We have a chance to try the heavy rain simulation they make for us. They made a
rain as hard as they could (300 mm/hr) and made us stand there with an umbrella
under the heavy rain.What a great experience. But the rain in Thailand in rainy
season is heavier though.
After that,
the last place we visited was a prototype train area where the guide explain
each prototype history.
The guide explained how this blue train levitate from the track at high speed.
After we left
RTIT we went to NTT research center. The first thing we did there was having a
lunch (XD).
We having a wonderful Japanese style bento lunch together. And with FREE coffee!
After we finished
lunch, we went to see their 4 technology presentation (these are 4 technology I
choose to see. No one know about this except Tanaka sensei, my laboratory
members and you, the reader. Shhhh, don’t tell Thai student). And of course, no
photographing allow here :( .
The first
project we saw was the next-generation passwordless authentication. Basically,
it was just a 2-factor authentication of a short bad password and pre-register
device given secret key, awesome.
Next-generation passwordless authentication
Next project
we saw was “Visual Search”,The Smart Navigation System for Visitors to Japan. For
short, it is a real world object embedded information using optical camera
image processing and application. The technology they create and use were
Angle-free object search technology and cloud database assist technology. The
idea is to have users move around in an unfamiliar place with ease as
they can obtain the information they need in their own language by just
pointing a smartphone at a Japanese signboard, map ,building or product.
“Visual Search” - Smart Navigation System for Visitors to Japan.
The next one
was “Hitoe”, a clothing-type bioelectrical sensor. At cost around 20,000 Yen,
you can have your own smart cloth that monitor your heart rate and
electromyogram for medical purpose using wireless and smartphone technology.
“Hitoe” - A clothing-type bioelectrical sensor
The last one
was “Buru-Navi”, the device that can imitate the sensation of being pull. This device
work like a vibration on a normal phone but the difference is that the
generated force is actually have one selected direction. The models we was
given to try and play with was fishing game with Buru-Navi 3 type 1 degree of
freedom and Buru-Navi 3 type 2 degrees of freedom which can select direction
with app.
“Buru-Navi”
After we
finished this session, we went to NTT history center of technology. Here, we
can take photographs (YAY!!), so we took a lot. This is the place that they
show their past research and contribution with Japan technology.
There are a lot of old model phones here. The speaker and microphone were very
heavy back then.
Tanaka sensei try to show us the network port for PC on the old telephone.
What a classic model they got here.
Mr.
Yuki Oga seem to enjoy using this thing.
Miss. Yuna Okayasu seem to enjoy as well. These guys were having fun (me
too, having fun writing this article. LOL)
This is fiber optic manufacture technology. They said that the fiber optic
preform on the right can use to make around 2,000 km fiber optic.
Me
and Yuki looking at the Japanese shape satellite.
After all day walk, everyone seem exhausted. (except Tanaka sensei, of course.
He still look fresh and full of energy)
The
trip could not end without some group photos. Even though we tried, when face a
camera, we try our best to have great pictures.
After we
done, we arrived at KAIT around 17:30. Thank you very much for a great trip. We,
Thai students, enjoy a lot staying here in Japan. Thank you for your great
care. And thank you for reading.
This is me. Maitai Dahlan. Thank you again for reading.
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