GB/T 37372-2019 in English

《GB/T 37372-2019交通数据广播通信技术要求》由TC268（全国智能运输系统标准化技术委员会）归口，主管部门为国家标准化管理委员会。

ChinaStandards.net 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