Japan Aerospace Exploration Agencys

The disaster prevention drill 2014 by the nine municipalities in the Kanto region

Experiment Date

September 1st, 2014

Experiment Agency

Sagamihara city, JAXA

Location of Experiment

U.S. Army Sagami General Depot (Chuo ku, Sagamihara city, Kanagawa prefecture)

Teikyo University Complex Ground (Suwarashi, Midorio ku, Sagamihara city, Kanagawa prefecture)

Outline of Experiment

At the joint disaster prevention drill 2014 by the nine municipalities in the Kanto region, JAXA and Sagamihara city conducted the communication training using Kizuna between the main site (U.S. Army Sagami General Depot) and the training site of countermeasure promotion for isolated area (Teikyo University Complex Ground).
At the training, information sharing by HD TV conference system between both sites and information transmission with HD live images from the training site to the main site were performed.



Main site: Portable USAT

Training site of countermeasure promotion for isolated area: Portable VSAT
Result of Experiment

HD TV conference
Information sharing was performed by HD TV conference system, connecting the "Kizuna" communication line between the headquarters in the main site and the training site of countermeasure promotion for isolated area.


Headquarters(Main site)

Training site of countermeasure promotion for isolated area

Because Kizuna has the wideband communication capability which allows us to use HD TV conference system, information sharing by high definition images is possible. Moreover, because of small delay time, we can use it with a feeling similar to using ground communication lines.


HD live images transmission
Information communication training was performed with parallel transmission of HD live images taken by two cameras using "Kizuna" communication line at the same time from the training site of countermeasure promotion for isolated area to the headquarters in the main site.


Headquarters(Main site)

Training site of countermeasure promotion for isolated area

At the headquarters, it was possible to immediately grasp the status of relief supplies and disaster relief efforts in the isolated area by HD live images.

In this training, HD images transmission and HD TV conference system were used at the same time, so that information sharing was possible checking transmitted images.

The wideband communication capability was filly utilized in this experiment overall.