BSI PD IEC TS 61496-4-3:2022 – TC:2023 Edition

$258.95

Tracked Changes. Safety of machinery. Electro-sensitive protective equipment – Particular requirements for equipment using vision based protective devices (VBPD). Additional requirements when using stereo vision techniques (VBPDST)

Published By	Publication Date	Number of Pages
BSI	2023	168

Guaranteed Safe Checkout

Categories: 29.260.99 - Other electrical equipment for working in special conditions, BSI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

PDF Catalog

PDF Pages	PDF Title
104	undefined
106	Blank Page
107	CONTENTS
109	FOREWORD
111	INTRODUCTION
112	1 Scope
113	2 Normative references 3 Terms and definitions
114	Figures Figure 1 – Image planes in imaging device of a VBPDST
117	4 Functional, design and environmental requirements Figure 2 – 3D view of a vision based protective device using stereo vision techniques (VBPDST)
118	Figure 3 – 2D view of a vision based protective device using stereo vision techniques (VBPDST)
126	5 Testing
128	Tables Table 431 – Verification of detection capability requirements (see also 4.2.12)
130	Figure 4 – Examples for periodic surface structures on the background
133	Table 432 – Overview of light interference tests
135	Figure 5 – Test setup for indirect light interference on the background
136	Figure 6 – Test setup for VBPDST of identical design with PAPT
137	Figure 7 – Test setup for direct light interference on the sensing device
139	6 Marking for identification and for safe use 7 Accompanying documents
141	Annex A (normative) Optional functions of the ESPE
143	Annex B (normative) Catalogue of single faults affecting the electrical equipmentof the ESPE, to be applied as specified in 5.3
144	Annex AA (informative) The positioning of VBPDST employing a volume as a detection zone in respect of parts of the human body
147	Figure AA.1 – Minimum distance S – Example 1 Figure AA.2 – Overall minimum distance So without tolerance zone – Example 1
148	Figure AA.3 – Overall minimum distance So including tolerance zone – Example 1
149	Figure AA.4 – Minimum distance S – Example 2
150	Figure AA.5 – Overall minimum distance So without tolerance zone – Example 2 Figure AA.6 – Overall minimum distance So including tolerance zone – Example 2
152	Figure AA.7 – Application example for body detectionof a VBPDST employing a volume as a detection zone
153	Annex BB (informative) Relationship between position accuracy and tolerance zones for VBPDST
154	Figure BB.1 – Relationship between test piece position and the probability of detection
155	Figure BB.2 – Example for measurement of the probability of detection
157	Figure BB.3 – Relationship between detection zone and tolerance zone
158	Figure BB.4 – Overall minimum distance So including tolerance zone
159	Annex CC (informative) Basic principles of physics for contras tof convex homogeneous bodies
160	Figure CC.1 – Illumination model – Sphere illuminated by a point source Figure CC.2 – Illumination model – Sphere illuminated by a half-Ulbricht sphere
161	Figure CC.3 – Brightness of a surface element of a sphere in spherical coordinates Figure CC.4 – Brightness distribution in an image of a sphere
162	Figure CC.5 – Grey value profile over a sphere with low contrast for a typical imaging contrast (Modulation Transfer Function) Figure CC.6 – Grey value profile over a sphere with the same colour as the background
163	Figure CC.7 – Grey value profile over a sphere in front of a background that is half as bright Figure CC.8 – Grey value profile over a sphere in front of a background that is twice as bright
164	Figure CC.9 – Grey value profile over a sphere by low contrast Figure CC.10 – Grey value profile over the sphere from Figure CC.9 but with the direction to the imaging device changed by 10°
165	Figure CC.11 – Grey value profile over a small sphere that results inan image that is 5 pixels in diameter
166	Bibliography