IEC 62676-2-31:2019定义了网络视频客户端和视频发射器设备之间的通信程序。这套新的规范使得用来自不同制造商的设备和接收器使用通用且定义良好的接口来构建网络视频系统成为可能。 这些界面涵盖媒体和成像配置、实时音频和视频流、平移、倾斜和缩放（PTZ）控制以及分析等功能。 本文档中定义的管理和控制接口被描述为web服务。附录F包含引入的网络服务的XML模式和Web服务描述语言（WSDL）定义。 第一版与IEC 60839-11-31和IEC 62676-2-32一起取消并取代IEC 62676-2-3:20 13。本版本包括以下与IEC 62676相关的重大技术变更-2-3:2013: a)添加Media2服务； b)用于成像服务的附加方法； c)来自设备IO服务的方法重复已经被移除； d)不再包括显示和分析设备服务。

IEC 62676-2-31:2019 defines procedures for communication between network video clients and video transmitter devices. This new set of specifications makes it possible to build network video systems with devices and receivers from different manufacturers using common and well-defined interfaces.
These interfaces cover functions such as media and imaging configuration, real-time streaming of audio and video, pan, tilt and zoom (PTZ) control as well as analytics.
The management and control interfaces defined in this document are described as web services. Annex F contains XML schema and Web Service Description Language (WSDL) definitions for the introduced network services.
This first edition, together with IEC 60839-11-31 and IEC 62676-2-32, cancels and replaces IEC 62676-2-3:2013. This edition includes the following significant technical changes with respect to IEC 62676-2-3:2013:
a) addition of the Media2 service;
b) additional methods for the imaging service;
c) method duplicates from the device IO service have been removed;
d) both the display and analytics device service are no more included.