ISO INTERNATIONAL STANDARD 24155 First edition 2016-02-01 Hydrometry - Hydrometric data transmission systems Specification of system requirements Hydrométrie - Systemes de transmission des données hydrométriques - Spécification des exigences des systemes Reference number ISO 24155:2016(E) ISO International Organization for Standardization e=ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02016 No reproduction or networking permitted without license from IHS IS0 24155:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, 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 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 0d6 - All rights reserved HS und Not for Resale, 2016/4/22 07:52:52 networking permited without license from IHS IS0 24155:2016(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Basic requirements 4.1 General. .1 4.2 Objectives of use. 4.3 Functional requirements 1 4.4 Geographical structures. 4.5 Time structures 2 4.6 Installation conditions .2 4.7 Considerations for designing 3 4.7.1 Reliability. "3 4.7.2 Safety "3 4.7.3 Data permanence 3 4.7.4 Maintainability 3 4.7.5 Operability 4 4.7.6 Economy. ..4 5 Functional requirements of system ..4 5.1 General. 4 5.2 Remote telemetry stations. ..4 5.2.1 General.. 4 5.2.2 Locations. ..4 5.2.3 Data measurements 4 5.2.4 Data processing .5 5.3 Telemetry system .5 5.3.1 General. .5 5.3.2 Amount and intervals of data transmission 5 5.3.3 Data collection sequence .5 5.3.4 Communication links ..6 5.3.5 Network architecture. 6 5.4 Receiving centre. .6 5.4.1 General. .6 5.4.2 Data verification ..6 5.4.3 Data processing 7 5.4.4 Data storage. 1 5.4.5 Data display and printing ..7 5.5 System monitoring. .7 5.5.1 General. ..7 5.5.2 Monitoring of operational status .7 5.5.3 Alarming. 5.6 Power supply .8 6 Operational requirement. .8 6.1 General. 6.2 Operationandmaintenancemanual ..8 6.3 Maintenance .9 Annex A (informative) Configuration of hydrometric data transmission systems ..10 Annex B (informative) Functional block diagram of hydrometric data transmission systems ..12 Annex C (informative) Locations of remote telemetry stations ..14 iii icenSee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS Not for Resale, 2016/4/22 07:52:52