After the Tokyo Olympics, many people were disappointed because they couldn't visit the grave during the Bon holidays due to the record long rain like the end of the rainy season and the Covid-19 pandemic.This time, I investigated disasters and disaster prevention including flood damage.

There is an urgent need to confirm the safety inside the train, triggered by the stab injury in the train on the Odakyu Line in August this year and in the train on the Keio Line in October.In this field, MOYAI's IoTube was installed in the train of Tokyu Oimachi Line in August 2019.However, it seems that it is becoming more sophisticated.This time, we investigated how IoT is used for railway safety.

Two and a half years have passed since I started researching IoT.During this time, the general understanding, awareness, and environment of IoT have changed considerably.This time, I would like to introduce three points that I have recently felt about IoT.