SIST EN ISO 20380:2018

SLOVENSKI STANDARD
01-februar-2018
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Public swimming pools - Computer vision systems for the detection of drowning
accidents in swimming pools - Safety requirements and test methods (ISO 20380:2017)
Öffentliche Schwimmbäder - Computererkennungssysteme für das Erkennen von
Ertrinkungsunfällen in Schwimmbädern - Sicherheitstechnische Anforderungen und
Prüfverfahren (ISO 20380:2017)
Piscines publiques - Systèmes de vision par ordinateur pour la détection de noyades en
piscines - Exigences de sécurité et méthodes d'essai (ISO 20380:2017)
Ta slovenski standard je istoveten z: EN ISO 20380:2017
ICS:
35.240.99 8SRUDEQLãNHUHãLWYH,7QD IT applications in other fields
GUXJLKSRGURþMLK
97.220.10 Športni objekti Sports facilities
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20380
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2017
EUROPÄISCHE NORM
ICS 35.240.99; 97.220.10
English Version
Public swimming pools - Computer vision systems for the
detection of drowning accidents in swimming pools -
Safety requirements and test methods (ISO 20380:2017)
Piscines publiques - Systèmes de vision par ordinateur Öffentliche Schwimmbäder -
pour la détection de noyades en piscines - Exigences de Computererkennungssysteme für das Erkennen von
sécurité et méthodes d'essai (ISO 20380:2017) Ertrinkungsunfällen in Schwimmbädern -
Sicherheitstechnische Anforderungen und
Prüfverfahren (ISO 20380:2017)
This European Standard was approved by CEN on 9 October 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20380:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 20380:2017) has been prepared by Technical Committee ISO/TC 83 "Sports and
other recreational facilities and equipment" in collaboration with Technical Committee CEN/TC 136
“Sports, playground and other recreational facilities and equipment” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2018, and conflicting national standards shall be
withdrawn at the latest by June 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20380:2017 has been approved by CEN as EN ISO 20380:2017 without any modification.

INTERNATIONAL ISO
STANDARD 20380
First edition
2017-11
Public swimming pools — Computer
vision systems for the detection of
drowning accidents in swimming
pools — Safety requirements and
test methods
Piscines publiques — Systèmes de vision par ordinateur pour
la détection de noyades en piscines — Exigences de sécurité et
méthodes d'essai
Reference number
ISO 20380:2017(E)
©
ISO 2017
ISO 20380:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 20380:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 General . 2
4.2 Technical study . 2
4.3 Performance requirements . 3
4.3.1 Alarm set off time . 3
4.3.2 Areas covered . 3
4.3.3 Detection performance . . 3
4.3.4 False alarm rates . 4
4.4 Data communication and management . 4
4.4.1 General. 4
4.4.2 Alarm data . 4
4.4.3 Operational data . 4
5 Test methods . 5
5.1 General . 5
5.2 Non-detection test. 5
5.2.1 Non-detection test preparation . 5
5.2.2 Non-detection test procedure . 5
5.3 Detection test . 6
5.3.1 General. 6
5.3.2 Detection test conditions . 6
5.3.3 Test preparation . 7
5.3.4 Distribution of detection measurements during the test . 7
5.3.5 Detection test measurement protocol . 9
5.4 Test report .10
6 Regular testing .11
6.1 Daily testing .11
6.2 Half-yearly testing .11
7 Trained staff manual .12
8 Maintenance .12
Annex A (informative) Typical rescue scenario .13
Bibliography .15
ISO 20380:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 83, Sports and other recreational facilities
and equipment.
iv © ISO 2017 – All rights reserved

ISO 20380:2017(E)
Introduction
Currently available epidemiological data show that despite the presence of lifeguards, drowning
[which, according to the World Health Organization (WHO), is the process of experiencing respiratory
impairment from submersion/immersion in liquid] remains in public swimming pools with entrance
[2][11]
fees. A certain number of studies together demonstrate that for several reasons (physiological,
cognitive, architectural, organizational, etc.), lifeguards may sometimes find themselves in difficulty
when watching over swimmers, knowing that a potential risk of a drowning accident may occur.
It is important to bear in mind that a lifeguard can supervise and inform swimmers to help ensure their
safety as well as anticipate and intervene early to prevent an accident from occurring.
Computer vision systems do not save people from drowning, as saving a drowning person necessarily
requires human intervention.
Installation and use of computer vision systems cannot serve as a reason to reduce human monitoring
of swimming pools, unless a robust risk assessment does indicate this is possible without compromising
safety, with reference to applicable national regulations, if any.
In addition to the safety organization, these tools are solely for use by a competent person, who received
prior training in the operational performances of these systems in accordance with the manufacturers'
and the swimming pool operators' instructions.
Not all possible drowning accidents can be detected by the systems described in this document, e.g.
persons floating on or just below the water surface. Although the current state-of-the-art does not
allow 100 % effectiveness, for several years, these technologies have proved their worth worldwide, by
regularly helping lifeguards to identify potential drowning accidents that they had not observed.
While it is possible to retrofit this type of equipment to an existing pool, consideration of its introduction
is best at the pool design stage.
In order to really enhance the drowning prevention in swimming pools, computer vision systems are
designed to:
— scan continuously and with redundancy the pool basin;
— detect mathematically a solid mass, without trajectory, lying at the pool basin bottom;
— trigger electronically an alarm after the detection;
— limit false alarms by automatically differentiating a solid mass from light and shadow projections
on the texture of the pool basin and by discriminating, without human intervention, a motionless
solid mass above and below the water surface.
A trained competent person cannot completely rely on such a system because:
— the system has limitations, which are covered in training for using the system;
— the system’s performance can be compromised by various factors, which the trained competent
person would be informed of automatically in real time.
Computer vision systems are foreseen to support the competent person in detecting drowning accidents
at the pool basin bottom and reacting faster by saving precious seconds.
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed
that compliance with this document may involve the use of patents concerning computer vision
technologies for the detection of drowning accidents in swimming pools, given in 3.1.
ISO takes no position concerning the evidence, validity and scope of these patent rights.
The holder of these patent rights has assured ISO that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this
ISO 20380:2017(E)
respect, the statement of the holder of these patent rights is registered with ISO. Information may be
obtained from:
POSÉIDON – MG INTERNATIONAL – MAYTRONICS FRANCE
3, rue Nationale
92100 – Boulogne Billancourt
France
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified above. ISO shall not be held responsible for identifying any or
all such patent rights.
vi © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 20380:2017(E)
Public swimming pools — Computer vision systems for
the detection of drowning accidents in swimming pools —
Safety requirements and test methods
1 Scope
This document describes the minimum operational, performance and safety requirements and test
methods for computer vision systems used to detect drowning accidents.
This document does not apply to the systems used in domestic swimming pools and pool basins with a
surface area of less than 150 m .
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
computer vision system for the detection of drowning accidents
automated system including means for digitizing series of images of people in the pool basin (3.11),
means for comparing and analysing digitized images and decision means for setting off and sending an
alarm (3.5) to trained staff (3.7) when a detection (3.3) occurs
3.2
drowning
process of experiencing respiratory impairment from submersion/immersion in liquid
Note 1 to entry: Outcomes are classified as death, morbidity and no morbidity.
[SOURCE: World Health Organization]
3.3
detection
recognition of a total and prolonged immersion at the bottom of the pool basin (3.11) of a stationary
solid mass such as a person or object
3.4
monitoring
active and constant observation of people in the pool basin (3.11) with the aim of preventing drowning
(3.2) risks
3.5
alarm
notification by the computer vision system of a detection (3.3) to the identified trained staff (3.7)
ISO 20380:2017(E)
3.6
competent person
designated individual who has acquired through training, qualifications or experience, or a combination
of these, the knowledge and skills enabling that person to perform a specified task
3.7
trained staff
on-duty competent person (3.6), in charge of surveillance and trained in the use of the computer vision
system for the detection of drowning accidents (3.1), and with access rights to the system
3.8
false alarm
alarm (3.5) set off for reasons other than detection (3.3)
3.9
alarm set off time
time from the moment that a solid mass is fully immersed, on the pool bottom and stationary, until the
alarm (3.5) is activated
3.10
swimming pool
facility, with one or more water areas, intended for swimming, leisure or other water-based physical
activities
3.11
pool basin
water tank where water-related activities can take place
4 Requirements
4.1 General
Computer vision systems are designed to complement lifeguards or trained staff and are not designed
to reduce lifeguard supervision or staffing levels.
The equipment and materials used shall be suitable for the environment in which their installation is
intended (immersion depth, very high hygrometry, chemically aggressive atmosphere, etc.).
Equipment and material
...