1 范围  Scope
1.1 文档概述  Summarization of the document
本文档描述了CTCS-H车载列控系统中软件组负责开发的软件部分的架构，将整个软件系统划分为具体的软件模块，确定了每个软件模块的开发内容，用于指导各个软件模块的设计开发，其主要包括以下内容。
In this document, software framework in CTCS-H vehicle-borne train control system developed by the software group will be described, the whole software system is divided into specific software modules, the contents in every software module to be developed are determined. This document will be used for directing design and development for software modules, mainly consisting of the following.

第一部分：描述本文件的适用范围和主要内容；
Part I: applicable scope and main contents of this document;
第二部分：系统介绍；
Part II: introduction to the system;
第三部分：软件整体结构和功能；
Part III: whole structure and functions of software;
第四部分：软件各个模块的体系结构；
Part IV: architecture of every software module.

Beijing Chinese Subtitling Translation Service Agency has translated many technical documents about Description of document: CTCS-H train control vehicle-borne equipment – development software structure description.
华译网上海翻译公司曾经翻译过大量有关CTCS-H列控车载设备开发软件体系结构说明书的资料文件。

1.2 参考文件  Reference
[1] CTCS-H列控车载设备开发软件需求规格说明书
CTCS-H train control vehicle-borne equipment – software development requirements specifications description
[2] CTCS-H列控车载设备系统需求规格说明书
CTCS-H train control vehicle-borne equipment – system requirements specifications description
[3] CTCS-H列控车载设备系统体系结构说明书
CTCS-H train control vehicle-borne equipment – system structure description
[4] 软件质量保证计划
Software quality assurance plan

1.3 缩略语  Abbreviations
ATP：列车超速防护；
ATP: Train overspeed protection
BTM：应答器信息接收单元
BTM: Balise information receiving Unit
LKJ：列车运行监控记录装置
LKJ: Train Running Monitor & Record Device
DMI：人机界面
DMI: Debugger Machine Interface
DRU：数据记录单元
DRU: Data record unit
RLU：继电器逻辑单元
RLU: Relay Logical Unit
MCT：主要控制模块；
MCT: master control module;
TCD：轨道电路解码模块；
TCD: orbit circuit decoding module;
DIO：开关量输入输出模块；
DIO: switch signal input & output module;
TCR：轨道电路信息记录模块；
TCR: Track circuit information recording module;
STR：状态信息记录模块。
STR: state info recording module.