本文档定义了用于表示基于传感器的3D混合现实世界的框架和信息参考模型。它定义了概念、信息模型、体系结构、系统功能，以及如何集成3D虚拟世界和物理传感器，以便为混合现实应用程序提供物理传感器接口。它定义了在基于物理传感器的混合现实应用程序之间传输和存储数据所需的交换格式。 本文件规定了以下功能: a） 在3D场景中表示物理传感器； b） 三维场景中物理传感器的定义； c） 在3D场景中表示每个物理传感器的功能； d） 在3D场景中表示每个物理传感器的物理特性； e） 管理3D场景中的物理传感器； f） 与3D场景中的物理传感器信息接口。 本文档为基于物理传感器的混合现实应用程序定义了一个参考模型，用于在3D场景中表示和交换物理传感器的功能。它没有定义操作物理设备所需的特定物理接口，而是定义了可在应用程序之间互换使用的通用功能接口。 本文档未定义如何使用特定物理传感器设备实现特定应用。它不包括使用鼠标或键盘等计算机输入/输出设备生成的传感器信息。本文档中的传感器代表现实世界中的物理传感器设备。

This document defines the framework and information reference model for representing sensor-based 3D mixed-reality worlds. It defines concepts, an information model, architecture, system functions, and how to integrate 3D virtual worlds and physical sensors in order to provide mixed-reality applications with physical sensor interfaces. It defines an exchange format necessary for transferring and storing data between physical sensor-based mixed-reality applications. This document specifies the following functionalities: a) representation of physical sensors in a 3D scene; b) definition of physical sensors in a 3D scene; c) representation of functionalities of each physical sensor in a 3D scene; d) representation of physical properties of each physical sensor in a 3D scene; e) management of physical sensors in a 3D scene; f) interface with physical sensor information in a 3D scene. This document defines a reference model for physical sensor-based mixed-reality applications to represent and to exchange functions of physical sensors in 3D scenes. It does not define specific physical interfaces necessary for manipulating physical devices, but rather defines common functional interfaces that can be used interchangeably between applications. This document does not define how specific applications are implemented with specific physical sensor devices. It does not include computer generated sensor information using computer input/output devices such as a mouse or a keyboard. The sensors in this document represent physical sensor devices in the real world.