Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard is under the jurisdiction of the National Technical Committee on Intelligent Transportation Systems of Standardization Administration of China (SAC/TC 268).
Communication technology requirements for traffic data broadcasting
1 Scope
This standard specifies the overall framework and the technical requirements for communication networks, FM synchronization, communication security and machine room of the communication system for traffic data broadcasting related to the traffic industry.
This standard is applicable to the construction and application of traffic data broadcasting systems, and may be used as reference for the construction of traffic data broadcasting systems in other industries.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 22239 Information security technology - Baseline for classified protection of information system security
GB/T 22240 Information security technology - Classification guide for classified protection of information systems security
GB 50174 Code for design of electronic information system room
GB 50689 Code for design of lightning protection and earthing engineering for telecommunication bureaus (stations)
GA 586 Security risk and protection level for key unit and vital position of radio film and television
GY 5062 Design code for transmitting (translator) sites (stations) for television and frequency modulation broadcasting
GY/T 154 Technical specification for FM sound sync-broadcasting system
GYJ 34 Design code for medium wave and shortwave broadcast transmitting stations
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
traffic data broadcasting
information technology and services jointly undertaken by the transportation departments and the radio and television departments to transmit data using digital technologies via the overlay networks of satellite broadcasting and television broadcasting or other independent data broadcasting channels
3.2
E1 link
a kind of data transmission specification on physical lines issued by the International Telegraph and Telephone Consultative Committee for the transmission of carrier-class services at a rate of 2,048 bit/s
3.3
program stream
a single data stream formed by combining (compounding) one or more elementary streams that have a common time reference
3.4
highway communication network
a special communication network for highway management and business departments and related enterprises, using the high-grade highway communication facilities as the transmission backbone
Note: Highway communication network includes conventional communication network and emergency communication facilities, and it refers to the conventional communication network herein unless otherwise specified.
3.5
public network
a network established and operated by the competent department or the telecommunication operation organization approved by the competent department to provide telecommunication services to the public
3.6
synchronous transmission
a kind of transmission mode that the data signals are transmitted with a synchronized clock tick, and the relative positions between the signal symbols are fixed in a serial data stream
3.7
independent base station
a base station with a set of receiving devices that is equipped with a set of transmitting devices
3.8
combined base station
a combination of multiple base stations with one set of receiving devices that is equipped with multiple sets of transmitting devices
3.9
FM synchronous broadcasting
a broadcasting form that broadcasts the same program content at the same frequency by using two or more transmitters located at different locations in a larger area
4 Abbreviations
For the purposes of this document, the following abbreviations apply.
ASI: Asynchronous Serial Interface
DVB-S: Digital Video Broadcasting For Satellite
IP: Internet Protocol
SDH: Synchronous Digital Hierarchy
UPS: Uninterruptible Power System
RS232: Recommended Standards 232
RS485: Recommended Standards 485
5 Overall framework
5.1 Overall framework of communication technology for traffic data broadcasting
See Figure 1 for the overall framework of communication technology for traffic data broadcasting (hereinafter referred to as “traffic broadcasting”).
Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviations 5 Overall framework 6 Technical requirements for communication networks 7 Technical requirements for FM synchronization 8 Technical requirements for communication security 9 Technical requirements for machine room Bibliography
ICS 03.220.20;35.240.60 R 07 GB 中华人民共和国国家标准 GB/T 37372—2019 交通数据广播通信技术要求 Communication technology requirements for traffic data broadcasting 2019-05-10发布 2019-12-01实施 国家市场监督管理总局 中国国家标准化管理委员会发布 前言 本标准按照GB/T 1.1—2009给出的规则起草。 本标准由全国智能运输系统标准化技术委员会(SAC/TC 268)归口。 交通数据广播通信技术要求 1 范围 本标准规定了与交通行业相关的交通数据广播通信系统总体框架、通信网技术要求、调频同步技术要求、通信安全技术要求和机房技术要求。 本标准适用于交通数据广播系统建设和应用,其他行业建设交通数据广播系统可参照使用。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。 GB/T 22239 信息安全技术 信息系统安全等级保护基本要求 GB/T 22240 信息安全技术 信息系统安全等级保护定级指南 GB 50174 电子信息系统机房设计规范 GB 50689 通信局(站)防雷与接地工程设计规范 GA 586 广播电影电视系统重点单位重要部位的风险等级和安全防护级别 GY 5062 电视和调频广播发射(转播)台(站)设计规范 GY/T 154 调频同步广播系统技术规范 GYJ 34 中、短波广播发射台设计规范 3 术语和定义 下列术语和定义适用于本文件。 3.1 交通数据广播 traffic data broadcasting 交通运输部门和广电部门共同承办,利用卫星广播和电视广播的覆盖网或其他独立数据广播通道,采用数字技术传送数据的信息技术和业务。 3.2 E1链路 E1 link 由国际电报电话委员会颁布,用于电信级业务的传输,一种物理线路上的数据传输规范,速率为2048 bit/s。 3.3 节目流 program stream 将具有共同时间基准的一个或多个基本码流组合(复合)而成的单一的数据流。 3.4 公路通信网 highway communication network 以高等级公路通信设施为传输骨干,供公路各管理及业务部门、相关企业专用的通信网。 注:公路通信网包括常规通信网和应急通信设施,本标准中没有特别说明的仅指常规通信网。 3.5 公网 public network 由主管部门或经主管部门批准的电信运营机构为公众提供电信业务而建立运行的网络。 3.6 同步传输 synchronous transmission 以同步的时钟节拍来发送数据信号,在一个串行的数据流中,各信号码元之间的相对位置都是固定的。 3.7 独立基站 independent base station 一套接收装置带一套发射装置的基站。 3.8 组合基站 combined base station 一套接收装置带多套发射装置的多基站组合。 3.9 调频同步广播 FM synchronous broadcasting 在一个较大的地域内,利用位于不同地点的两部或更多的发射机,使用同一频率播出同样的节目内容的广播形式。 4 缩略语 下列缩略语适用于本文件。 ASI:异步串行接口(Asynchronous Serial Interface) DVB-S:卫星传送数字视频广播(Digital Video Broadcasting For Satellite) IP:网络之间互连的协议(Internet Protocol) SDH:同步数字体系(Synchronous Digital Hierarchy) UPS:不间断电源设备(Uninterruptible Power System) RS232:232异步串行通信接口(Recommended Standards 232) RS485:485异步串行通信接口(Recommended Standards 485) 5 总体框架 5.1 交通数据广播通信技术总体框架图 交通数据广播(以下简称交通广播)通信技术总体框架图见图1。