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at a starting point, the interval distance, the bump number, and the location information for the starting point in di-vided form for each timing from the PC in vehicle.3.1.3Comparison of detected bump height and obtained bump height by field surveyTo verify the accuracy of the road bump information detected by this system, aer driving on general roads in a residential area near the Kashima Space Technology Center of NICT and obtaining the road bump information, we conducted a eld survey and grasped the bump heights (cm) in a simplied way. However, the roads that we drove made bumps at the time of the 2011 Great East Japan Earthquake and were those before repair. Figure 5 shows a comparison of the bump heights (cm) detected by this system and the bump heights (cm) obtained from the eld survey. Although there are places that are evaluated higher than the actual height and vice versa, we nd both heights to have a rough correspondence relation.ese are fully meaningful data in the circumstance of no road damage information immediately aer a disaster. To use this system enables viewing the road damage infor-mation sent in real time from the teams moving to disaster sites or to share the information with relevant sections.3.2Mobile communication experiment between fire vehicles and WINDS mobile vehicle earth stationWe proposed a mobile communication system between vehicles by the WINDS mobile vehicle earth station and vehicles which allows information collection and sharing when the emergency support teams of re departments head for disaster areas. is system is composed of Wi-Fi radios, easily mounted on a re vehicle, and a router unit for which OLSRv2 [6] controls the paths. Wi-Fi radios with directional antennas are placed on the front and rear of the vehicle. e front is set to the terminal (Station: STA) mode and the rear the access point (AP) mode. By setting the AP FiF5Comparison of detected values and values by the field studyFiF4　Screenshot of server installed in the disaster countermeasure headquarters3 Ultra-High-Speed Satellite Communication Technology90　　　Journal of the National Institute of Information and Communications Technology Vol. 64 No. 2 (2017)