SVENSK STANDARD SS-EN

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1 SVENSK STANDARD SS-EN Fastställd Utgåva Sida Ansvarig kommitté (1+619) SEK TK 79 Copyright SEK. Reproduction in any form without permission is prohibited. Larmsystem Utrustning och system för TV-övervakning (CCTV) Del 5-2: Videoöverföring Gränssnitt och protokoll för videoöverföring med internetprotokoll (IP) Alarm systems CCTV surveillance systems for use in security applications Part 5-2: IP Video Transmission Protocols Som svensk standard gäller europastandarden EN :2011. Den svenska standarden innehåller den officiella engelska språkversionen av EN :2011. Nationellt förord Tidigare fastställd svensk standard SS-EN , utgåva 1, 2001, gäller ej fr o m Standarden ersätter SS-EN , utgåva 1, 2001, tillsammans med SS-EN ICS ; Denna standard är fastställd av, som också kan lämna upplysningar om sakinnehållet i standarden. Postadress: SEK, Box 1284, KISTA Telefon: Telefax: E-post: sek@elstandard.se. Internet:

2 Standarder underlättar utvecklingen och höjer elsäkerheten Det finns många fördelar med att ha gemensamma tekniska regler för bl a säkerhet, prestanda, dokumentation, utförande och skötsel av elprodukter, elanläggningar och metoder. Genom att utforma sådana standarder blir säkerhetskraven tydliga och utvecklingskostnaderna rimliga samtidigt som marknadens acceptans för produkten eller tjänsten ökar. Många standarder inom elområdet beskriver tekniska lösningar och metoder som åstadkommer den elsäkerhet som föreskrivs av svenska myndigheter och av EU. SEK är Sveriges röst i standardiseringsarbetet inom elområdet svarar för standardiseringen inom elområdet i Sverige och samordnar svensk medverkan i internationell och europeisk standardisering. SEK är en ideell organisation med frivilligt deltagande från svenska myndigheter, företag och organisationer som vill medverka till och påverka utformningen av tekniska regler inom elektrotekniken. SEK samordnar svenska intressenters medverkan i SEKs tekniska kommittéer och stödjer svenska experters medverkan i internationella och europeiska projekt. Stora delar av arbetet sker internationellt Utformningen av standarder sker i allt väsentligt i internationellt och europeiskt samarbete. SEK är svensk nationalkommitté av International Electrotechnical Commission (IEC) och Comité Européen de Normalisation Electrotechnique (CENELEC). Standardiseringsarbetet inom SEK är organiserat i referensgrupper bestående av ett antal tekniska kommittéer som speglar hur arbetet inom IEC och CENELEC är organiserat. Arbetet i de tekniska kommittéerna är öppet för alla svenska organisationer, företag, institutioner, myndigheter och statliga verk. Den årliga avgiften för deltagandet och intäkter från försäljning finansierar SEKs standardiseringsverksamhet och medlemsavgift till IEC och CENELEC. Var med och påverka! Den som deltar i SEKs tekniska kommittéarbete har möjlighet att påverka framtida standarder och får tidig tillgång till information och dokumentation om utvecklingen inom sitt teknikområde. Arbetet och kontakterna med kollegor, kunder och konkurrenter kan gynnsamt påverka enskilda företags affärsutveckling och bidrar till deltagarnas egen kompetensutveckling. Du som vill dra nytta av dessa möjligheter är välkommen att kontakta SEKs kansli för mer information. Box Kista Tel

3 EUROPEAN STANDARD EN NORME EUROPÉENNE EUROPÄISCHE NORM December 2011 ICS ; Supersedes EN :2001 (partially) English version Alarm systems - CCTV surveillance systems for use in security applications - Part 5-2: IP Video Transmission Protocols Systèmes d'alarme - Systèmes de surveillance CCTV à usage dans les applications de sécurité - Partie 5-2: Protocoles de Transmission de Vidéo d'ip Alarmanlagen - CCTV-Überwachungsanlagen für Sicherungsanwendungen - Teil 5-2: IP Video Übertragung Protokolle This European Standard was approved by CENELEC on CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Management Centre: Avenue Marnix 17, B Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN :2011 E

4 Contents Foreword... 9 Introduction Scope Normative references Definitions and abbreviations Terms and definitions Video Transmission network architecture (informative) General Networking and connectivity Device discovery and description Video media types and payload formats Video Transport Eventing and Health Check The Building Block of Existing Standards (informative) CCTV system device model Overview Device model elements General IP interoperability requirements General Protocol Requirements Overview General High Level IP Video Interface and Protocol Requirements Non-Conformance Video Transmission Systems and Devices Mandatory Documentation for the IP Video Interface of a VTD Video and Data Transport: Mandatory Streaming Requirements Detailed RTSP Protocol Requirements and Definitions Device discovery and description UPnP Device Discovery and Description (METHOD 1) Zeroconf service discovery and description (METHOD 2) Web Service Discovery (METHOD 3) Eventing Requirements Video Network Device Management Requirements Requirements for standard MIB compliance SNMP Trap Notification Requirements MIB Enterprise Tree Definitions for Video Transmission Devices Monitoring and Polling Applications CCTV SNMP Trap Requirements for Event Management Security Requirements SNMP Page 2

5 12 Requirements on other IP Video Interfaces Bibliography APPENDIX I - IP Interoperability Implementation Based on HTTP and REST Services APPENDIX I.A REST Service Model Version Introduction Design Considerations REST Overview Conformance HTTP Methods and REST HTTP Status Codes and REST Unique Identifiers ID Encoding Architecture and Namespace System Flow Service Discovery Persistent Connections Authentication Access Restrictions Setting Configurations Getting Configurations Getting Capabilities Uploading Data Receiving Data Operations Diagnostics Response Status Processing Rules XML Modeling File Format Data Structures Lists Capabilities Custom Services & Resources Interface Design Protocol Hostname Port URI

6 7.5 Query String Resource Description Standard Resource Descriptions index indexr description capabilities Appendices Schemas APPENDIX I.B IP Media Device API Specification Version Overview Scope Problem Definition Conformance Service Requirements Resource Requirements Media Streaming Streaming with RTP and RTSP Streaming using HTTP Server Push Common Data Types Built-in Types ReceiverAddress TimeBlockList Service Command Details /System /System/Storage /System/Storage/volumes /System/Network /System/IO /System/Audio /System/Video /System/Serial /Diagnostics /Security /Security/AAA /Streaming /PTZ /Custom/MotionDetection

7 7.15 /Custom/Event APPENDIX II - IP Interoperability Implementation Based on Web Services INTRODUCTION Scope Normative references Terms and Definitions Definitions Abbreviations Overview Web Services IP configuration Device discovery Device management Imaging configuration Media configuration Real-time streaming Event handling PTZ control Video analytics Storage Security Client code examples Web Services frame work Services overview WSDL overview Namespaces Types Messages Operations Port Types Binding Ports Services Error handling Security IP configuration Device discovery General

8 7.2 Modes of operation Discovery definitions Remote discovery extensions Device management Capabilities Network System Security Input/Output (I/O) Service specific fault codes Imaging configuration Imaging settings Service specific fault codes Media configuration Audio and video codecs Media Profile Video source Video source configuration Video encoder configuration Audio source Audio source configuration Audio encoder configuration Video analytics configuration Metadata configuration Stream URI Snapshot Multicast Synchronization Points Service specific fault codes Real time streaming Media stream protocol Media control protocol Error Handling Event handling Basic Notification Interface Real-time Pull-Point Notification Interface Notification Streaming Interface Properties

9 12.5 Notification Structure Synchronization Point Topic Structure Get event properties SOAP Fault Messages Notification example Service specific fault codes PTZ control PTZ Model PTZ Node PTZ Configuration Move Operations Preset operations Home Position operations Auxiliary operations Predefined PTZ spaces Service specific fault codes Video analytics Scene Description Interface Rule interface Analytics Modules Interface Service-specific fault codes Security Transport level security Message level security Annex II.A (informative) Notification topics A.1 Media configuration topics Annex II.B (informative) Scene descriptions Annex II.C (normative) Video IP Network Interface XML Schemata C.2 Device Management Service WSDL C.3 Imaging Service WSDL C.4 Media Service WSDL C.5 PTZ Service WSDL C.6 Remote Discovery Proxy Services WSDL C.7 Common Network Video Schema C.8 Topic Namespace XML C.9 Event WSDL Bibliography

10 APPENDIX III - IP Interoperability Implementation Based on another Specification

11 Foreword This document (EN :2011) has been prepared by CLC/TC 79, Alarm systems. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with this document have to be withdrawn (dop) (dow) This document partially supersedes EN :2001 and introduces the new video transmission methology based on IP protocols into the standard series. EN consists of the following parts, under the generic title Alarm systems CCTV surveillance systems for use in security applications : Part 1 Part 5-1 Part 5-2 Part 5-3 System requirements Video transmission General Video Transmission Performance Requirements IP Video Transmission Protocols Video transmission Analog and Digital Video Transmission Part 7 Application guidelines Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. 9

12 Introduction The European Electrotechnical Standardisation Organisation for Alarm Systems together with many governmental organisations, test houses and equipment manufacturers has defined a common framework for Surveillance Video Transmission in order to achieve interoperability between products. This Video transmission standard is divided into 3 independent parts and sections: Part 1: General video transmission performance requirements Part 2: IP Video transmission protocols Part 3: Analog and digital video transmission Each part offers its own clauses on scope, references, definitions, requirements The purpose of the transmission system in a closed circuit television (CCTV) installation is to provide reliable transmission of video signals between the different types of CCTV equipment in security, safety and monitoring applications. Today CCTV surveillance systems reside in security networks using IT infrastructure, equipment and connections within the protected site itself. This standard EN on network video ip protocol and interface definitions for video devices in surveillance applications is based on the general requirements for video transmission of EN Part 1 defines minimum IP connectivity requirements, basic video streaming, stream control, eventing, discovery and description functions, where this Part 2 is based on. Additionally Part 1 establishes minimum performance requirements, including interconnection, network video devices. EN Application Guidelines give guidance for Video Surveillance Installations in general, but takes special care of video ip networks. Any video transmission network should be designed in accordance with these standards. With pren a detailed standard for non IP video transmission is defined. For signal and performance requirements on analog and uncompressed digital video transmission and interfaces this part 3 of the standard series shall be applied. 10

13 1 Scope This European Standard introduces an IP network interface for devices in surveillance applications. In this part of the standard a network protocol is specified for the full interoperability of video devices. EN specifies the minimum network performance standards and general compliance to existing, well-known international network standards. On top of these basic layers protocols are defined to accomplish the full interoperability of video devices. In surveillance applications IP video devices have to use standardized protocols to accomplish following functionality: video streaming, stream control, event handling, discovery, capability description, device management, PTZ control, auxiliaries and other functions. This European Standard consists of 3 sections. The first section defines protocol requirements to be fulfilled by any high-level IP video device interface. The following two sections Annex I and Annex II- define two alterative protocols, one is based on HTTP and REST services and the second is based on Web Services. In the future a third high-level IP protocol may be defined in Annex III, which grants compatibility to the requirements of this standard series. Today no third IP video protocol implementation is available. Some areas of this transmission standard are covered by more than one approach, e.g. UPnP, ZeroConf and WS-Discovery. The network protocols recommended and defined by this Video Transmission Standard are selected with a sense for future relevance and further extensions. Video transmission equipment may be combined with additional functions, e.g. for audio or metadata transmission. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN , Alarm systems CCTV surveillance systems for use in security applications Part 1: System requirements EN , Alarm systems CCTV surveillance systems for use in security applications Part 5-1: Video transmission General video transmission performance requirements EN , Alarm systems CCTV surveillance systems for use in security applications Part 7: Application guidelines 11