GB/T 44021.2-2024Audio, video, and related equipment - Determination of power consumption - Part 2: Test signals and media (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting:

This document is part 2 of GB/T 44021 "Measurement of power consumption of audio, video and related equipment": GB/T 44021 has been published as follows Lower part:

--- Part 1: General;

--- Part 2: Test signals and media;

--- Part 3: Television sets;

--- Part 4: Video recording equipment;

--- Part 5: Set-top box (STB);

--- Part 6: Audio equipment:

This document modifies and adopts IEC 62087-2:2023 "Measurement of power consumption of audio, video and related equipment - Part 2: Signals and media":

The technical differences between this document and IEC 62087-2:2023 and their reasons are as follows:

--- Added "This document applies to audio, video and related equipment:" to meet the requirements of GB/T 1.1 (see Chapter 1);

--- Replaced IEC 62087-1 with the normative reference GB/T 44021.1-2024, in line with the actual reference in this document to adapt to my country's technical conditions and increase operability (see Chapter 3);

--- Changed the terms and definitions of "HD" and "UHD" (see 3.1:11 and 3:1:12) to adapt to the general classification of HD and UHD in my country;

--- Replaced IEC 60268-1 with the normative reference GB/T 12060.1-2017, in line with the actual reference in this document to adapt to my country's technical conditions and increase operability (see 4.3:1:2);

--- Added the settings of digital audio broadcast receivers used in my country (see 4.3:2:3) to adapt to the widespread use of digital audio in my country the following editorial changes were made to this document:

--- In order to coordinate with the existing standards, the name of the standard is changed to "Measurement of power consumption of audio, video and related equipment Part 2: Test signals and media";

--- Added the abbreviation "CDR" (see 3.2);

--- Deleted the abbreviations "BD", "dB", "Hz", "kb/s", "Mb/s", "RMS" (see 3.2);

---Change "HDMI latest available version" to "HDMI available version" (see 6.3:2);

---Change the network video signal (dynamic) bit rate in Table A:2 to "25/30Mb/s" (see A:2);

--- Deleted reference [20]:

Introduction

As important consumer products, audio and video products are widely used in consumers' homes: The power consumption of audio and video and related equipment has become a major concern for consumers:

The development of this document provides a practical evaluation method for the power consumption evaluation of audio, video and related equipment, which will help strengthen the consumer product field:

It has played a positive role in building the domain standard system and promoting the healthy development of the industry:

GB/T 44021 "Measurement of power consumption of audio, video and related equipment" is planned to consist of 6 parts:

--- Part 1: General: The purpose is to specify general requirements for power consumption measurements of audio, video and related equipment:

--- Part 2: Test signals and media: The purpose is to give the test signals for audio, video and related equipment such as televisions and computer monitors:

Signals and media used when measuring power consumption:

--- Part 3: Television sets: The purpose is to specify the power consumption measurement and related characteristics of television sets:

--- Part 4: Video recording equipment: The purpose is to describe the power consumption measurement method of video recording equipment with removable media:

Various operating modes related to power consumption measurement:

--- Part 5: Set-top Box (STB): The purpose is to describe the power consumption measurement method of the set-top box and give various operation modes:

--- Part 6: Audio equipment: The purpose is to describe the power consumption measurement method of audio equipment:

Power consumption measurement of audio, video and related equipment Part 2: Test signals and media

1 Scope

This document specifies the signals used to measure the power consumption of audio, video and related equipment such as televisions and computer monitors:

The signal of brightness ratio, as well as the equipment, interface and accuracy related to the signal generation:

This document applies to audio, video, and related equipment:

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document:

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document:

GB/T 12060.1-2017 Sound system equipment Part 1: Overview (IEC 60268-1:1985, MOD) GB/T 44021.1-2024 Measurement of power consumption of audio, video and related equipment Part 1: General (IEC 62087-1:2015, IDT) IEC 60107-1:1997 Methods of measurement for receivers for television broadcast transmissions Part 1: General conditions for radio and video frequencies Note: GB/T 17309.1-1998 Measurement methods for television broadcast receivers Part 1: General considerations for RF and video electrical performance measurements and display performance Measurement of energy (idtIEC 60107-1:1995) IEC 60315-1:1988 Methods of measurement for radio receivers of various emission classes Part 1: General considerations and measurements (including IEC 60315-3 Methods of measurement for radio receivers of various classes of emission Part 3: Receivers for AM sound broadcasting emissions Note: GB/T 2846-2011 Measurement methods for AM broadcast receivers (IEC 60315-3:1999, NEQ) IEC 60315-4:1997 Methods of measurement for radio receivers of various classes of emission Part 4: Receivers for FM sound broadcasting transmissions Note: GB/T 6163-2011 Video broadcast receiver measurement methods (IEC 60315-4:1997, NEQ) applications) IEC 61938 Multimedia systems - Guide to recommended characteristics of analog interfaces for achieving interoperability Note: GB/T 14197-2012 Preferred matching values for interconnection of audio, video and audiovisual systems (IEC 61938:1996, IDT) DVB-T system)