Standard number: QX/T 146-2019
Standard name: Implementation specifications
for localized programs broadcasting of China ||tt
|| weather TV
Standard format: PDF
Release time: 2019-12-26
Implementation time: 2020-04-01
Standard size: 1.33M
Standard introduction: This standard specifies the technical system requirements and program requirements for the localized program broadcasting of China Weather Channel. This standard applies to the construction, business operation, and program production and broadcasting of the localized program text and picture automatic broadcasting system of China Weather Channel.
2 Normative reference documents
The following documents are indispensable for the application of this document. For all referenced documents with dates, only the versions with dates apply to this article
. For any undated referenced document, the latest version (including all amendments) shall apply to this document
QX/T278 Specification for safe broadcasting of China Meteorological Channel
3 Terms and definitions
The following terms and definitions shall apply to this document
Localized program broadcasting
Local meteorological departments shall broadcast local programs on the China Weather Channel that has been established
4 Technical system requirements
4.1 System functions and composition
4.1.1 The system shall be able to regularly superimpose automatically generated programs on the China Weather Channel.
4.1.2 The system shall include hardware system, software system and data access This standard was drafted in accordance with the rules given in GB/T1.1-2009
This standard replaces QX/T146-2011 "Provincial Program Insertion of China Meteorological Channel". Compared with QX/T146-2011, the main technical changes except editorial changes are as follows:
The name of the standard is changed to "Implementation Specifications for Localized Program Broadcasting of China Weather Channel";
The scope of this standard is modified (see Chapter 1, Chapter 1 of the 2011 edition);
The normative references of GY/T165-2000 and QX/T145-2011 are deleted (see Chapter 2 of the 2011 edition);
The normative references of QX/T278 are added (see Chapter 2);
Terms and definitions such as "provincial program insertion", "digital broadcast channel", "local insertion program" and "graphic program" are deleted (see Chapter 3 of the 2011
edition);
The term and definition of "localized program broadcasting" are added (see 3.1);
The audio-visual system, synchronization system and clock system in the system structure have been modified (see 4.2, 4.2 of the 2011 edition);
The control system has been deleted (see 4.2, 2011 edition);
The technical indicators and broadcast safety have been deleted (see 4.3, 4.4 of the 2011 edition);
Software system and data access have been added (see 4.3 and 4, 4);
The business process and responsibilities have been deleted (see 4, 5 of the 2011 edition)
This standard is proposed and managed by the Meteorological Film and Television Sub-Technical Committee of the National Meteorological Disaster Prevention and Mitigation Standardization Technical Committee (SAC/TC345/SC1).
Drafting unit of this standard: Public Meteorological Service Center of China Meteorological Administration
Main drafters of this standard: Meng Jing, Zhang Jie, Liu Feifei, Zheng Xiaonan, Su Lijuan, Zang Yixiang.
The previous versions of the standards replaced by this standard are
QX/T146-2011.
This standard specifies the technical system requirements and program requirements for the broadcast of localized programs on China Weather Channel. This standard applies to the construction, business operation, and program production and broadcast of the localized program text and picture automatic broadcast system of China Weather Channel.

ICS07.060
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Meteorological Industry Standard of the People's Republic of China
QX/T146—2019
Replaces QX/T146—2011
Implementation specifications for localized programs broadcasting of Chinaweather TV
Published on 2019-12-26
China Meteorological Administration
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Implemented on 2019-04-01
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Normative reference documents
Terms and definitions
Technical system requirements
Requirements for localized programs
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QX/T146—2019
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This standard was drafted in accordance with the rules given in GB/T1.1—2009. QX/T146—2019
This standard replaces QX/T146—2011 "Provincial Program Insertion of China Meteorological Channel". Compared with QX/T146-2011, the main technical changes except editorial changes are as follows:
The name of the standard is changed to "Implementation Specifications for Localized Program Broadcasting of China Weather Channel": The scope of this standard is modified (see Chapter 1, Chapter 1 of the 2011 edition); the normative references of GY/T165-2000 and QX/T145-2011 are deleted (see Chapter 2 of the 2011 edition); the normative references of QX/T278 are added (see Chapter 2); the terms and definitions such as "provincial program insertion", "digital broadcast channel", "local inserted program" and "graphic program" are deleted (see Chapter 3 of the 2011 edition);
The term and definition of "localized program broadcasting" are added (see 3.1); the audio-visual system, synchronization system and clock system in the system structure are modified (see 4.2, 4.2 of the 2011 edition); the control system is deleted (see 4.2.2 of the 2011 edition); In addition to technical indicators and broadcast safety (see 4.3, 4.4 of the 2011 edition); software systems and data access have been added (see 4.3 and 4.4); business processes and responsibilities have been deleted (see 4.5 of the 2011 edition); relevant regulations in local programs have been modified (see Chapter 5, Chapter 5 of the 2011 edition); and the host's qualification review has been deleted (see 5.4.2 of the 2011 edition). This standard is proposed and managed by the Meteorological Film and Television Technical Committee of the National Meteorological Disaster Prevention and Mitigation Standardization Technical Committee (SAC/TC345/SC1).
This standard was drafted by: China Meteorological Administration Public Meteorological Service Center. The main drafters of this standard are: Meng Jing, Zhang Jie, Liu Feifei, Zheng Xiaonan, Su Lijuan, Zang Yixiang. The previous versions of the standards replaced by this standard are: QX/T146—2011
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Implementation Specifications for Localized Program Broadcasting of China Weather Channel This standard specifies the technical system requirements and program requirements for the broadcasting of localized programs on China Weather Channel QX/T146—2019
This standard applies to the construction, business operation, and program production and broadcasting of the localized program text and picture automatic broadcasting system of China Weather Channel. Normative Reference Documents
The following documents are indispensable for the application of this document. For all dated reference documents, only the dated version applies to this document. For all undated reference documents, the latest version (including all amendments) applies to this document. QX/T278 Specifications for Safe Broadcasting of China Weather Channel 3 Terms and Definitions
The following terms and definitions apply to this document. 3.1
Localized Program Broadcasting Localized Program Broadcasting Local meteorological departments broadcast local programs on the China Weather Channel that has been landed. 4 Technical System Requirements
4.1 System Functions and Composition
4.1.1 The system should be able to regularly superimpose automatically generated programs on the China Weather Channel. 4.1.2 The system should include hardware system, software system and data access. 4.2 Hardware System
Audio and Video System
The China Weather Channel signal can be transmitted to the local program broadcasting unit through local cable transmission or local satellite reception, and the local program can be broadcast through the audio and video system. The broadcast signal should be transmitted back to the local cable and realize local low-code stream recording and monitoring. The structure of the audio and video system is shown in Figure 1.
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Access to local cable/satellite reception
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Decoder
→Sync machine
Studio signal
Optical transceiver
(transmitting and receiving China
Weather Channel signal
Low bit rate monitoring server
4.2.2 synchronization system
Audio and video distribution
Enlarger
Audio and video distribution
With amplifier
Encoder
Autotext
Broadcast server
Figure 1 Audio and video system
China Weather Channel
Channel line signal sourcebzxZ.net
Main autotext
Broadcast server
Audio and video distribution
Distribution amplifier
Audio loss
Main output signal
Backup autotext
Broadcast server
Four-to-one switcher
Main autotext
Broadcast server
Crystal poking fog
China Channel signal source
Main output
Audio distribution
Distribution amplifier
Main and backup synchronization signals should be distributed to the four-choice switcher, the frame synchronizer and the main and backup automatic text and image broadcasting servers after being output through synchronization switching. The structure of the synchronization system is shown in Figure 2.
Main synchronization signal generator
Synchronization signal inverter
Each synchronization signal generator
4.2.3 Clock system
Synchronization distribution amplifier
Figure 2 Synchronization system
Four-choice switcher||t t||Ton Synchronizer
Main Automatic Graphics and Text Broadcasting Server
Backup Automatic Graphics and Text Broadcasting Server
Global Positioning System (GPS) time signal or Beidou time signal is received and output through the satellite calibration clock, and the clock signal is distributed to the clock slave clock for clock display and main and backup database clock sources. The clock system is shown in Figure 3. 2
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GPS/Beidou
Satellite Calibration Clock
Satellite Calibration Clock
4.2.4 Transmission Path
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Time code selector
High stable clock
Figure 3 Clock system
Clock slave
Time code generator
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Main database
Backup database
The transmission path should include the optical fiber link interconnected with the local cable and the backup satellite signal receiving link installed by the local meteorological bureau. 4.2.5 Emergency broadcast
It should be able to switch to broadcast the China Weather Channel signal by automatic or manual control. 4.2.6 Operation and maintenance
System operation and maintenance management and technical document management should be carried out in accordance with QX/T278. 4.3 Software system
4.3.1 Editing
According to the scheduled broadcast schedule, the program templates are combined in the order of the broadcast to form a program list. 4.3.2 Review
Should be able to review and revise the planned broadcast weather data in advance. 4.3.3 Broadcast
Should be able to realize the 24-hour automatic loop broadcast of the program list, and the weather graphic template should automatically replace the data. 4.4
Data access
Data access should follow the following principles:
Data security principle: the meteorological data received should be the operational data of the meteorological department; Data consistency principle: the format of the meteorological data received should remain consistent; Data continuity principle: the meteorological data received should be able to be supplied to the local broadcast system on time and uninterruptedly; Data accuracy principle: the content of the meteorological data received should be complete and accurate. d)
4.4.2 The access process is shown in Figure 4. It should specifically comply with the following: a)
Data migration: Regularly migrate meteorological data to the localized program broadcasting system database; 3
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b) Preprocessing: Standardize meteorological data in accordance with the principle of data consistency; c)
Data analysis: Analyze the data to form meteorological data that can be identified and matched by the localized program broadcasting system; Data review: Review the integrity and accuracy of the meteorological data broadcast and correct erroneous data; Automatic matching of data graphics and text: The data interface preset in the program template automatically matches the reviewed data and regularly updates the program meteorological information.
Data Migration
Localization Requirements
5.1 Program Release Requirements
5.1.1 Program Content
Preprocessing
Data Analysis
Figure 4 Data Access Process
Data Review
Automatic Matching of Data Graphics and Texts
Program content should include important weather monitoring, forecast and warning information, follow-up reports on disastrous weather, meteorological disasters and their impacts, meteorological science popularization, professional meteorological service content, etc.
5.1.2 Meteorological Information Release Requirements
5.1.2.1 The release of meteorological forecast and warning information should be carried out in accordance with local laws and regulations on meteorological disaster prevention. 5.1.2.2 The index and professional forecast products released by the program should be consistent with the meaning of the products of the same name released by China Weather Channel. 5.1.2.3 The live information in the program should broadcast the data updated in the last hour. 5.1.2.4 The forecast and live information in the program should indicate the release time. 5.1.2.5 In the event of a major meteorological disaster, in an emergency, rolling subtitles, additional video windows, or even interrupting normal broadcasting should be used to quickly broadcast warning information and related prevention knowledge, and increase broadcast content in a timely manner. 5.2 Program packaging
5.2.1 The basic program packaging should use the unified template of China Weather Channel, mainly including basic elements such as graphic background, opening trailer and music, weather symbols, font size and color.
5.2.2 Local areas can design and add special templates according to program service needs, which should be approved by China Weather Channel before use4
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People's Republic of China
Meteorological Industry Standard
China Weather Channel Localized Program Broadcasting Implementation Specification QX/T146—2019
Published and Distributed by Meteorological Press
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