BS EN 50132-5-1-2011 Alarm systems CCTV surveillance systems for use in security applications Video transmission General video transmission performance requirements《报警系统 闭路电视(CCTV).pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50132-5-1:2011Alarm systems CCTV surveillance systems for use in security applicationsPart 5-1: Video transmission General video transmission performance requirementsIncorp

2、orating corrigendum July 2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50132-5-1:2011National forewordThis British Standard is the UK implementat

3、ion of EN 50132-5-1:2011, incorporating corrigendum July 2012. Together with BS EN 50132-5-2:2011 and BS EN 50132-5-3:2012, it supersedes BS EN 50132-5:2001, which is withdrawn.CENELEC corrigendum July 2012 updates clause 3.1.28 and Table 2.The UK participation in its preparation was entrusted by Te

4、chnical Committee GW/1, Electronic security systems, to Subcommittee GW/1/10, Closed circuit television (CCTV).A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.

5、 Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 73186 0Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Sta

6、ndards Policy and Strategy Committee on 30 November 2012.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDICS 13.310; 33.160.40Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or n

7、etworking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 50132-5-1 NORME EUROPENNE EUROPISCHE NORM December 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Ce

8、ntre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50132-5-1:2011 E ICS 13.310; 33.160.40 English version Alarm systems - CCTV surveillance systems for use in security applications - Par

9、t 5-1: Video transmission - General video transmission performance requirements Systmes dalarme Systmes de surveillance CCTV usage dans les applications de scurit - Partie 5-1:Exigences gnrales de performance pour la vidotransmission Alarmanlagen - CCTV-berwachungsanlagen fr Sicherungsanwendungen -

10、Teil 5-1: Allgemeine Leistungsanforderungen an die Videobertragung This European Standard was approved by CENELEC on 2011-10-31. 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 sta

11、ndard 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

12、 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, Cr

13、oatia, 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. Incorporating corr

14、igendum July 2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 50132-5-1:2011 (E) 2 Contents Page Foreword . 4 1 Scope 7 2 Normative references 7 3 Term

15、s, definitions and abbreviations 7 3.1 Terms and definitions 7 3.2 Abbreviations . 19 4 Introduction 21 5 Performance requirements . 22 5.1 General 22 5.2 Network time services . 22 5.3 Video transmission timing requirements 23 5.4 Performance requirements on streaming video . 24 6 IP video transmis

16、sion network design requirements 26 6.1 General 26 6.2 Overview . 27 6.3 Digital network planning . 27 6.4 Additional architecture principles 30 6.5 Network design 30 6.6 Replacement and redundancy 33 6.7 Centralized and decentralized network recording and video content analytics . 34 7 General IP r

17、equirements . 35 7.1 General 35 7.2 IP ISO Layer 3 35 7.3 Addressing . 35 7.4 Internet Control Message Protocol (ICMP) 36 7.5 Diagnostics . 37 7.6 IP multicast . 37 8 Video streaming requirements . 37 8.1 General 37 8.2 Transport protocol . 38 8.3 Documentation and specification 39 8.4 RTP introduct

18、ion 39 8.5 RTP payload formats . 40 8.6 Streaming of metadata 45 9 Video stream control requirements . 48 9.1 General 48 9.2 Usage of RTSP in video transmission devices . 48 9.3 RTSP standards track requirements 49 BS EN 50132-5-1:2011Copyright European Committee for Electrotechnical Standardization

19、 Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 50132-5-1:2011 (E) 3 10 Device discovery and description requirements 50 11 Eventing requirements 50 12 Network device management requirements 51 12.1 General .51 12.2 Gen

20、eral (informative) 51 12.3 MIB overview .52 12.4 Introduction .52 12.5 The SNMPv2 management framework requirements .53 12.6 Object definitions .53 12.7 The SNMP agent and manager model for video transmission devices 54 12.8 CCTV SNMP trap requirements for event management .55 12.9 Security requirem

21、ents SNMP 56 13 network security requirements .56 13.1 General .56 13.2 Transport level security requirements for SG4 transmission 56 Bibliography 58 Figures Figure 1 network buffer. 24Figure 2 Network latency, jitter, loss . 28Figure 3 System design 30Figure 4 Small network . 31Figure 5 Multicast n

22、etwork . 31Figure 6 Hierarchical network 32Figure 7 Redundant network 34Figure 8 Video transport protocol stack . 39Figure 9 Overview of the protocol stack for RTP transport 40Figure 10 KLV pack . 47Figure 11 MIB structure . 52Tables Table 1 Time service accuracy for video transport stream. 22Table

23、2 Interconnections Timing requirements 23Table 3 Video transmission network requirements . 23BS EN 50132-5-1:2011Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-

24、,-,-EN 50132-5-1:2011 (E) 4 Table 4 Video transmission network requirements 23Table 5 Performance requirements video streaming and stream display 25Table 6 Video stream network packet jitter 26Table 7 Monitoring of interconnections . 26BS EN 50132-5-1:2011Copyright European Committee for Electrotech

25、nical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 50132-5-1:2011 (E) 5 Foreword This document (EN 50132-5-1:2011) has been prepared by CLC/TC 79, “Alarm systems“. The following dates are fixed: latest

26、 date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-10-31 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2014-10-31 This document, together with EN 50

27、132-5-2 and future EN 50132-5-3, supersedes EN 50132-5:2001. This document introduces new general requirements on video transmission. EN 50132 consists of the following parts, under the generic title Alarm systems CCTV surveillance systems for use in security applications Part 1 System requirements

28、Part 5-1 General video transmission performance requirements Part 5-2 IP video transmission protocols Part 5-3 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

29、 patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. BS EN 50132-5-1:2011Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted withou

30、t license from IHS-,-,-EN 50132-5-1:2011 (E) 6 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

31、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

32、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

33、 CCTV surveillance systems reside in security networks using IT infrastructure, equipment and connections within the protected site itself. BS EN 50132-5-1:2011Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or

34、 networking permitted without license from IHS-,-,-EN 50132-5-1:2011 (E) 7 1 Scope This European Standard introduces general requirements on video transmission. A detailed specification on analog video transmission over different media including signal and performance requirements is already defined

35、 in prEN 50132-5-3. For the growing number of surveillance applications based on IP video transmission the requirements are defined in 2 standards. This standard covers in the following clauses the general requirements for video transmissions on performance, security and conformance to basic IP conn

36、ectivity, based on available, well-known, international standards. In areas where more detailed IP requirements are necessary additional specifications are given, in order to reach compatibility. In this European Standard no detailed and special CCTV protocols are defined. In Part 2 of this European

37、 Standard, a detailed video IP protocol, messages and commands on top of the general connectivity and performance requirements of Part 1 are defined. Part 2 defines an IP protocol for full interoperability (e.g. PTZ control, eventing, etc.) of video transmission devices used in surveillance applicat

38、ions. The first section of this standard defines the minimum performance requirements on video transmission for security applications in IP networks. In surveillance applications, the requirements on timing, quality and availability are strict and defined in the last section of this standard. Guidel

39、ines for network architecture on how these requirements can be fulfilled are given. The second section of this European Standard defines requirements on basic IP connectivity of video transmission devices to be used in security applications. If a video transmission device is used in security, certai

40、n basic requirements apply. First of all a basic understanding of IP connectivity needs to be introduced which requests the device to be compliant to fundamental network protocols. These could be requirements which may be applied to all IP security devices even beyond IP video. For this reason, requ

41、irements are introduced in a second step for compliance to basic streaming protocols, used in this standard for video streaming and stream control. Since security applications need high availability and reliability, general means for the transmission of the video status and health check events need

42、to be covered. Theses are defined in general requirements on eventing and network device management. In security proper maintenance and setup is essential for the functioning of the video transmission device: Locating streaming devices and their capabilities is a basic requirement and covered in “de

43、vice discovery and description“. 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) ap

44、plies. EN 50132-1, Alarm systems CCTV surveillance systems for use in security applications Part 1: System requirements EN 50132-7, Alarm systems CCTV surveillance systems for use in security applications Part 7: Application guidelines 3 Terms, definitions and abbreviations 3.1 Terms and definitions

45、 For the purposes of this document, the following terms and definitions apply. 3.1.1 adaptive jitter buffering queuing of packet s in switched networks exposed to unwanted variations in the communications signal to ensure the continuous video transmission over a network supported by the “Adaptive“ a

46、bility to adjust the size of the jitter buffer based on the measured jitter in the network BS EN 50132-5-1:2011Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-

47、,-EN 50132-5-1:2011 (E) 8 EXAMPLE If the jitter increases, the buffer becomes larger and can store more packets; if the jitter decreases, the buffer becomes smaller and stores fewer packets. 3.1.2 advanced Encryption Standard (AES) NIST encryption standard, also known as Rijndael, specified as uncla

48、ssified, publicly-disclosed, symmetric encryption algorithm with a fixed block size of 128 bits and a key size of 128 bits, 192 bits or 256 bits according to the Federal Information Processing Standards Publication 197 3.1.3 ASCII (American Standard Code for Information Interchange) de-facto world-wide standard for the code numbers used by computers to represent all the upper and lower-case characters 3.1.4 asymmetric algorithm algorithm used in the asymmetric cryptography, in which a pair of keys (a private key