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铁路客运专线通信系统除了提供语音、数据、图像等多媒体的通信手段外,作为通信统一平台,还为列车控制、信息系统、运营调度系统提供不同层次、不同需求的数据通信网络服务。因此需要构建一个支持数据、语音和图像业务交换的多业务传输平台(MSTP)。针对铁路客运专线给出数据通信网的构建方式,文章对三种网络设计方案进行比较,指出各自的可行性。
In addition to providing multi-media communication means such as voice, data and image, the railway passenger dedicated line communication system also provides data communication network services of different levels and needs for train control, information system and operation scheduling system as a unified communication platform. Therefore, we need to build a multi-service transport platform (MSTP) that supports the exchange of data, voice and image services. Aiming at the construction of data communication network for railway passenger dedicated line, the article compares three kinds of network design schemes and points out their respective feasibility.