Use Of QZSS For The Acute Period Of Disaster Mitigation
In this paper, we report a case study of designing and implementing a system by employing national satellite system, QZSS (Quasi-Zenith Satellite System). Our system is for the Acute Stage of Enormous-scale Disasters Damages Mitigations. We have gone through national crises caused by earthquakes and tsunamis. Through these experiences we have established advanced communication systems and advanced disaster medical response systems. However, Japan was devastated by the Great East Japan Earthquake occurred on March 11th, 2011. Huge tsunamis swept a vast area of Tohoku causing a complete breakdown of all the infrastructures including telecommunications. Communication of emergency information was limited causing a serious delay in the initial rescue and medical operation. For the emergency rescue and medical operations, it is the most important to identify the number of casualties, their locations and states and to dispatch doctors and rescue workers from multiple organizations. In the case of the Tohoku earthquake, the dispatching mechanism and/or decision support system did not exist to allocate the appropriate number of doctors and locate disaster victims. Even though the doctors and rescue workers from multiple government organizations have their own dedicated communication system, the systems are not interoperable. In the area of the disaster management, introduction of cutting edge ICT is urgently needed. In this paper, we propose a design concept of Emergency Temporal Information Network System designed by using national satellite system, QZSS for the Acute Stage of Large-scale Disasters Damage Mitigation. While simulating on the desk, it turned out that it took about 48 hours or more to start the rescue operation after the disaster, around 24 hours after the disaster.
Index Terms - Satellite systems communication, QZSS, Crisis management, Disaster Mitigation