The research on grassroots type earthquake disaster prevention information system using the IT strong motion seismometer.

在本研究中，为了减少大地震造成的灾害，提出了一种可能的对使用者熟悉的地方的实际地震运动进行检查的系统。该系统名为“基于IT强震地震仪的基层防震减灾信息系统”。为实现这一目标，我们研制了廉价的IT强震地震仪。本文的研究结果如下：(1)提出了IT强震仪作为防灾信息终端的概念，通过与网络的连接，实现了观测点周围的比对和防灾信息的提供。(2)利用宽带线路和IT强震仪，将区域防灾信息网互联在一起，形成了“草根型防震信息网”，最适合作为下一代防灾信息网。(3)小型…对构成IT强震仪设备和防灾信息网络的协议进行了标准化研究，并试制了服务器系统软件，通过IT强震仪的试制，发明了以下技术，并进行了专利申请。(A)使用内部时钟的技术，通过NTP等方便的方法进行校对，可以准确地获取100个样本/秒的数据。(2)由最大加速度和每秒最大速度求取地震烈度当量值的“简约秒地震烈度”计算方法。(C)赋予联网地震观测设备接收信息服务服务器功能，不仅可以接收观测点的观测数据，还可以接收来自中心局的各种地震信息。较少

In this study, in order to reduce the disaster by large earthquake, the possible system for examining actual earthquake motion of the familiar place of the users, was advocated. It is called "grassroots type earthquake disaster prevention information system using the IT strong motion seismometer". We produced the cheap IT strong motion seismometer for realizing it experimentally. The result of this study is according to the following.(1)We proposed the concept of the IT strong motion seismometer as a disaster prevention information terminal in which comparison around the observation point and offer of disaster prevention information were possible by connecting with the network.(2)It was shown that "grassroots type earthquake disaster prevention information network" which interconnected regional disaster prevention information network was most suitable as the next generation disaster prevention information network using the broadband line and the IT strong motion seismometer.(3)Small-si … More zed machine of the IT strong motion seismometer was produced experimentally and it was shown that the cheap IT strong motion seismometer could be realized.(4)The standardization of the protocol which constituted equipment and disaster prevention information network of the IT strong motion seismometer was examined, and the software of the server system was produced experimentally.And, through the trial manufacture of IT strong motion seismometer, the following was invented, and the patent application was carried out. (a)The technology using inside clock proofreaded by convenient methods such as NTP which accurately acquires the data of the 100 sample/second. (b)The calculation method of "simplicity second seismic intensity" which obtains seismic intensity equivalent value from maximum acceleration and maximum speed in the every second. (c)Giving network connective seismic observation equipment with reception with the information service server function of not only observation data of observation point but also earthquake information from center office variously. Less