中文摘要：

和普通列车相比，高速列车作为一种更快速的交通工具，其受到地震的威胁也更大。高速铁路地震预警系统能在破坏性地震波到达前发出报警，是防止其发生重大损失或人员伤亡的有效措施。我国新建的京津、京石等高速铁路中都要求建设地震预警系统。一个好的地震预警系统不仅要有科学先进的算法来确定地震三要素和影响范围等，系统的构架也尤为重要。系统构架影响甚至决定了系统的鲁棒性、可维护性、运行效率、安全性等。因此有必要对预警系统的系统构架进行研究，确保预警系统构架合理。讨论了高速铁路地震预警系统中所需要的硬件和软件模块及其相互关系，为高速铁路地震预警系统的建设提供参考和依据。

英文摘要：

As a newly-emerging fast vehicle, high-speed Train is more vulnerable to earthquakes than common trains. Earthquake early warning system for high-speed railway is an effective tool to reduce loss and casualties by sending alarm to train before the destructive seismic wave arrive. In China, the newly constructed Beijing-Tianjin and Beijing-Shijiazhuang high-speed railways are demanded to construct earthquake early warning systems. A good earthquake early warning system should have not only progressive algorithm to determine seismic three elements and the influenced range, but also a fine system construction. Therefore, it is meaningful to discuss the construction of earthquake early warning system for high-speed train and make sure the architecture is effective and reasonable. In this paper, the hardware and software modules and their relations are discussed to cope with the need of high-speed train in China. This paper could be helpful in constructing earthquake early warning system for high-speed train.