IEC TS 61496-4-2:20 22作为IEC TS 61496-4-2:20 22 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC TS 61496-4-2:20 22规定了非接触式电敏防护设备(ESPE)的设计、构造和测试要求，该设备专门设计用于检测作为安全相关系统一部分的人员，采用基于视觉的防护设备(VBPD)，使用参考模式技术(VBPDP)实现传感功能。特别注意确保实现适当的安全相关性能的特征。ESPE可以包括可选的安全相关功能，其要求在IEC 61496-1:20 20的附录A和本文件中给出。如果本文件不包含所有必要的规定，则适用IEC TS 62998-1。对于本文件中未考虑的那些方面，也可以另外使用IEC TS 62998-1的规定。本文件没有规定检测区的尺寸或配置及其与任何特定应用的危险部件的关系，也没有规定任何机器的危险状态。它仅限于ESPE的功能及其与机器的接口方式。VBPDPP被定义为由在作为背景的被动参考图案上观看的单个图像感测设备组成，并且其中检测原理基于阻挡或部分阻止对图案的观看。检测不需要关于物体的厚度、形状、表面特征或位置的信息。对于多图像感测设备，可能需要额外的技术、要求和测试程序。 -本文档仅限于不需要人工干预进行检测的基于自动视觉的ESPE。 -其限于检测进入或存在于检测区域中的物体的基于自动视觉的ESPE。 -它仅限于使用主动照明技术的ESPEs。 -本技术说明书不包括采用波长在400nm至1500nm范围之外的辐射的VBPDPP。 -本文档不涉及对检测到的物体进行复杂分类或区分所需的那些方面。 本文件适用于规定检测能力高达200 mm的VBPDPPs。本文档不涉及EMC排放要求。IEC TS 61496-4-2:20 22取消并取代2014年发布的第一版。本版构成技术修订版。与上一版相比，此版本包括以下技术变更: a)一些要求条款和测试程序已被调整或删除，因为它们已合并到IEC 61496-1:20 20中（例如，IEC 61496-1:20 20光源的5.4.6.2或条款A.9）。

IEC TS 61496-4-2:2022 is available as IEC TS 61496-4-2:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC TS 61496-4-2:2022 specifies requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety-related system, employing vision-based protective devices (VBPDs) using reference pattern techniques (VBPDPP) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related performance is achieved. An ESPE can include optional safety-related functions, the requirements for which are given in Annex A of IEC 61496-1:2020 and this document. Where this document does not contain all necessary provisions, then IEC TS 62998-1 applies. It is also possible, for those aspects not considered in this document, to use provisions from IEC TS 62998-1 additionally. This document does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. A VBPDPP is defined as consisting of a single image-sensing device viewing on a passive reference pattern as the background and where the detection principle is based on blocking or partially preventing the view of the pattern. Information about the thickness, shape, surface characteristics or location of the object is not required for detection. For multi-image sensing devices, additional techniques, requirements and test procedures can be necessary.
- This document is limited to automatic vision-based ESPEs that do not require human intervention for detection.
- It is limited to automatic vision-based ESPEs that detect objects entering into, or are present in, a detection zone(s).
- It is limited to ESPEs using active illumination technique.
- Excluded from this technical specification are VBPDPPs employing radiation at wavelengths outside the range 400 nm to 1 500 nm.
- This document does not address those aspects required for complex classification or differentiation of the object detected.
This document is relevant for VBPDPPs having a stated detection capability up to 200 mm. This document does not deal with EMC emission requirements.
IEC TS 61496-4-2:2022 cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following technical changes with respect to the previous edition:
a) Some requirement clauses and test procedures have been adapted or removed because they have been consolidated in IEC 61496-1:2020 (e.g. 5.4.6.2 of IEC 61496-1:2020 Light sources or Clause A.9).