GB/T 41997.3-2022
Electrical safety of machinery—Vision based electro-sensitive protective equipment—Part 3: Particular requirements for devices using stereo vision techniques (English Version)

Standard No.

GB/T 41997.3-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 41997.3-2022

Scope

This document specifies the design, manufacturing and testing requirements for electro-sensitive protective equipment (ESPE) using stereoscopic vision protection devices, and describes the special requirements for electro-sensitive protective equipment whose sensitive function is the use of stereoscopic vision technology. This document is limited to the functionality of ESPE and how it is connected to machinery. The detection principle is based on evaluating images from different observation points (stereoscopic views) to determine distance information. This distance information is used to determine the location of the object. This document applies to: 　——Vision-based ESPEs, which have fixed distances (stereoscopic bases) and directions between different fixed imaging devices during manufacturing; 　——Vision-based ESPEs, distance-sensitive devices to the detection area The minimum distance is 4 times that of the stereo base; 　——Vision-based ESPEs can detect objects with a diameter of at least 5 pixels on the image plane; 　——Vision-based ESPEs do not require human intervention for detection; 　——Vision-based ESPEs that detect objects entering or existing in the detection zone; 　——VBPDSTs that use radiation with wavelengths in the range of 400nm to 1500nm; 　——VBPDSTs with detection capabilities within the 200mm range. This document does not cover: 　——the size or configuration of the detection area and its configuration in relation to hazardous parts for any particular application; 　——the hazardous status of any machinery; 　——the complex classification or differentiation required for objects to be detected Aspects; 　——Aspects of mobile ESPE devices; 　——Electromagnetic compatibility (EMC) emission requirements; Additional requirements and tests may apply to the following situations: 　——Use of multispectral (color) technology; 　——Except 4.1.2 Settings other than those shown in Figure 1 (e.g. changing background, horizontal orientation of optical axis relative to ground); 　——Intended outdoor applications. This document may be relevant to applications other than protecting the human body or body parts such as arms or fingers (in the range of 14mm~200mm), such as protecting machines or products from mechanical damage. In these applications (for example when the material to be identified by the sensitive function has properties different from those of a person), additional requirements are required.

GB/T 41997.3-2022 Referenced Document

• GB 28526-2012 Electrical safety of machinery.Functrional safety of safety-related electrical,electronic and programmable electronic control systems
• GB 7247.1-2012 Safety of laser products.Part 1:Equipment classification and requirements
• GB/T 15706-2012 Safety of machinery.General principles for design.Risk assessment and risk reduction
• GB/T 16855.2-2015 Safety of machinery—Safety-related parts of control systems—Part 2: Validation
• GB/T 19436.1-2013 Electrical safety of machinery.Electro-sensitive protective equipment.Part 1:General requirements and tests
• GB/T 19876-2012 Safety of machinery.Positioning of safeguards with respect to the approach speeds of parts of the human body
• GB/T 41997.1-2022 Electrical safety of machinery—Vision based electro-sensitive protective equipment—Part 1: General requirements
• GB/T 4208-2017 Degrees of protection provide by enclosure (IP code)
• ISO 20471:2013 High visibility clothing.Test methods and requirements

GB/T 41997.3-2022 history

• 2022 GB/T 41997.3-2022 Electrical safety of machinery—Vision based electro-sensitive protective equipment—Part 3: Particular requirements for devices using stereo vision techniques

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