Tokyokaiyo Univ: Underwater tracking and optical wireless communication: 10 Mbps speed
-Autonomously track the communication target underwater-
Softbank
Tokyokaiyo University
The research team
Image processing technology,
Precision control technology and
Utilizing visible light wireless communication technology,
We have developed an underwater optical wireless communication system that uses automatic tracking technology to communicate.
Underwater optical wireless communication system:
From land
For underwater remote control robots
Give instructions via optical wireless communication.
Announced that it succeeded in a demonstration experiment to control in real time.
Conventional problems:
Existing radio waves do not penetrate underwater.
Sound waves are greatly affected by disturbance.
There were problems with large-capacity video transmission and real-time control of observation equipment.
This solution:
Tracking type underwater optical wireless communication device developed this time.
Utilized image processing technology and precision control technology.
It has an automatic tracking performance of 60 degrees in the horizontal direction and 60 degrees in the vertical direction.
Wired connection from the underwater robot body
It works independently.
Demonstration experiment:
A visible light wireless communication device with an irradiation angle of 7 degrees was used.
In the experimental aquarium of Tokyokaiyo University
The two masters and slaves capture each other,
The optical axis was automatically aligned, and the underwater robot was operated from a personal computer on land.
Both sides track:
By tracking both sides,
Communication was not interrupted, and data communication was possible at a speed of 10 Mbps or higher.
IoT NEWS
https://iotnews.jp/archives/193714
Succeeded in demonstrating optical wireless communication by tracking technology that autonomously tracks communication targets underwater for the first time in the world
~ Aiming for the Industrial Revolution of the Sea with Beyond 5G ~
Softbank Corp.
https://www.kaiyodai.ac.jp/topics/img/47e4607781bdd7756122a2facf152fae_2.pdf