BS ISO 14859-2012 Ships and marine technology Sound reception systems《船舶和海洋技术 声音接收系统》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 14859:2012Ships and marine technology -Sound reception systemsBS ISO 14859:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 1485

2、9:2012.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/80, Maritime navigation and radiocommunicationequipment and systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all

3、 the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 69350 2ICS 47.020.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stan

4、dard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2012.Amendments issued since publicationDate Text affectedBS ISO 14859:2012 ISO 2012Ships and marine technology Sound reception systemsNavires et technologie maritime Systmes de rception sonoreINTERNATIO

5、NAL STANDARDISO14859First edition2012-04-01Reference numberISO 14859:2012(E)BS ISO 14859:2012ISO 14859:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or

6、by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail

7、copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 14859:2012ISO 14859:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Functional requirements . 24.1 General . 24.2 Installation recommendations .

8、 35 Type tests 35.1 General . 35.2 Shipboard type testing . 45.3 Test facility type testing . 46 Installation performance tests . 56.1 Microphone installation . 56.2 Bridge equipment installation 56.3 Operational performance 5Annex A (informative) Shipboard type test methodology 6Annex B (informativ

9、e) Test facility type test methodology . 8Bibliography . 11BS ISO 14859:2012ISO 14859:2012(E)ForewordISO (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

10、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

11、collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International

12、Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements

13、 of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 14859 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 6, Navigation and ship operations.iv ISO 2012 All rights reserve

14、dBS ISO 14859:2012ISO 14859:2012(E)IntroductionSound reception systems are acoustical-electronic navigational aids to enable the officer of the watch to hear outside sound signals inside a totally enclosed bridge in order to perform the lookout function as required in the International Regulations f

15、or Preventing Collisions at Sea, 1972. Optionally, they can also be installed on vessels without fully enclosed bridges.The requirements in this International Standard take into account human factors, ergonomic principles, and advances in technology. ISO 2012 All rights reserved vBS ISO 14859:2012BS

16、 ISO 14859:2012Ships and marine technology Sound reception systems1 ScopeThis International Standard specifies the functional requirements and recommended installation and performance tests for sound reception systems. Guidelines have been drawn up for the methods and solutions to meet the functiona

17、l requirements.The requirements apply to fully enclosed bridges, and other bridges where such equipment is voluntarily installed.This International Standard specifies bridge requirements that will secure a safe and efficient lookout on those seagoing ships having a fully enclosed bridge.This Interna

18、tional Standard will be for the design of ship bridges. It will also be useful fora) specifiers and procurers of ships and bridge equipment, andb) operators and owners for ensuring that changes made through the life of a ship still conform to its requirements.2 Normative referencesThe following docu

19、ments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3745, Acoustics Determ

20、ination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for anechoic rooms and hemi-anechoic roomsISO 9613-1, Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmospherelEC 60945:200

21、2, Maritime navigation and radiocommunication equipment and systems General requirements Methods of testing and required test resultsIEC 61162-1, Maritime navigation and radiocommunication equipment and systems Digital interfaces Part 1: Single talker and multiple listenersIEC 61162-450, Maritime na

22、vigation and radiocommunication equipment and systems Digital interfaces Part 450: Multiple talkers and multiple listeners Ethernet interconnectionIEC 62288, Maritime navigation and radiocommunication equipment and systems Presentation of navigation-related information on shipborne navigational disp

23、lays General requirements, methods of testing and required test resultsIMO, International Regulations for Preventing Collisions at Sea, COLREG 72, Sound Signal AppliancesIMO Resolution A.468(Xll), Code on Noise Levels on Board ShipsIMO Resolution A.694(17), General Requirements for Shipborne Radio E

24、quipment Forming Part of the GMDSS and for Electronic Navigational AidsMSC.86(70), Annex 1, Recommendation on performance standards for sound reception systems3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.INTERNATIONAL STANDARD ISO 14859:2012(E)

25、ISO 2012 All rights reserved 1BS ISO 14859:2012ISO 14859:2012(E)3.1dB(A)sound pressure measurement in decibels using A-weighting scaleNOTE The A-weighting scale is used for industrial and environmental applications.3.2SPLSound Pressure Levelcalculation in dB as a ratio of the measured sound pressure

26、 to a reference sound pressure, which, for SPL, is 20 uPa4 Functional requirements4.1 GeneralUsers of this International Standard shall note that while attempting to implement its requirements, they shall ensure compliance with such statutory requirements, rules and regulations as may be applicable

27、to the individual ship concerned.NOTE All requirements that are extracted from the recommendations of IMO Resolution MSC.86(70), annex 1, Performance standards for sound reception systems, are printed in italics and the resolution and paragraph numbers are indicated in brackets.Sound reception syste

28、ms shall comply with the following minimum requirements in addition to the general requirements contained in resolution MSC.86(70), Annex 1, and A.694(17).4.1.1 EnvironmentalThe sound reception system shall conform to the environmental requirements of IEC 60945. Those elements of the system exposed

29、to the weather shall use the exposed category and those inside the bridge shall use the protected category.The sound reception system shall be resistant to icing and frost conditions.4.1.2 Audio functionsIMO MSC.86(70) Annex 1, 2.1.2, 2.1.4 and 3.1 The system shall reproduce incoming sound signals a

30、coustically inside the bridge. Incoming sound signals shall be reproduced inside the bridge by means of at least one loudspeaker. The system shall suppress unwanted background noise while allowing reception of meaningful sounds. The operator must set an appropriate output level to ensure the signal

31、is heard on the bridge.IMO MSC.86(70) Annex 1, 3.2 The volume at the speaker(s) shall be adjustable by means of one volume control only. The volume control shall be capable of being set so that the sound pressure level reproduced on the bridge for an incoming signal is at least 10 dB(A) above the ma

32、ximum ambient bridge noise level of 65 dB(A) measured at a distance of 1 m.4.1.3 Frequency rangeIMO MSC.86(70) Annex 1, 2.1.1 The system shall receive sound signals from all directions in the audio band 70 Hz-2 100 Hz. This frequency range exceeds the limits stated in IMO Resolution MSC.86 (70), Ann

33、ex 1. The audibility of a signal of the sound signal appliance is influenced by its fundamental frequency and may include higher frequency content on smaller vessels.4.1.4 Visual indicatorIMO MSC.86(70) Annex 1, 2.1.3 There shall be a display which gives a visual indication of the incoming signals a

34、nd their approximate direction. The system shall indicate the approximate direction of incoming sound signals to determine at least whether the sound signal being detected is forward of or abaft the beam and from which side of the ship it is being detected. The visual indication shall persist for a

35、minimum of 3 s. The 2 ISO 2012 All rights reservedBS ISO 14859:2012ISO 14859:2012(E)visual indication can be a dedicated display unit or part of a combined, multifunction display as long as the performance criteria in this specification are met.The visual display must indicate the sound being reprod

36、uced on the speaker.4.1.5 Disable functionThe system shall provide an input that disables its amplifier when the ships horn or whistle is sounded.4.1.6 Self-testThe system shall provide either a built-in self-test function or an alternate test process to verify the operational status of the micropho

37、nes and system on a periodic basis. The alternate test process shall be described in the user documentation along with a suggested schedule of testing.4.1.7 Marking and identificationThe sound reception systems shall conform to the marking requirements of IEC 60945.4.1.8 InformationManufacturer docu

38、mentation for the sound reception systems shall meet the requirements of IEC 60945.4.2 Installation recommendations4.2.1 Microphone placementThe microphones shall be installed in such a way that they are as far from noise sources in the ship as is reasonably practicable where wind induced noise and

39、mechanical vibrations are reasonably reduced.4.2.2 Display placementThe display shall be installed so that it is visible from the conning position. Optionally, the information may be displayed (as on overlay) on other systems such as a radar or ECDIS display. Serial interfaces and sound reception sy

40、stem information display on other systems shall comply with IEC 61162-1 and IEC 62288 respectively.4.2.3 Speaker placementIMO MSC.86(70) Annex 1, 4.3 The loudspeaker(s) should be installed so that incoming sound signals are audible at all positions inside the bridge.5 Type tests5.1 GeneralType testi

41、ng of the equipment shall validate that the equipment meets the performance requirements stated in Clause 4.Type testing of operational performance characteristics can be carried out on a ship, in a test facility, or a combination of both locations. Guidance for testing is provided in 5.2 and 5.3.5.

42、1.1 Sensitivity and frequency responseType testing shall confirm the sensitivity and frequency response of the audio processing functions. When type testing of sensitivity and frequency response is performed at a test facility using a test signal, the test signal shall simulate the spectrum and SPL

43、of sources in COLREG 72, Sound Signal Appliances at the distance ISO 2012 All rights reserved 3BS ISO 14859:2012ISO 14859:2012(E)employed for the test. IALA Recommendation E-109 provides guidance on the calculation of the range of a sound signal.5.1.2 Directionality of microphones and visual indicat

44、orsType testing shall confirm the directionality of the microphones and the visual indicators incorporated into the sound reception system.5.1.3 Audio output and controlsConfirm the presence of at least one loudspeaker.Confirm that there is only a single volume control affecting signals reproduced f

45、rom the microphones equally.Adjust the volume control and confirm that the sound pressure level of an incoming signal can be set at least 10 dB(A) above the ambient bridge noise level indicated in IMO Resolution A.468(XII) which itself is a maximum of 65 dB(A).5.2 Shipboard type testingThe sound rec

46、eption system shall be tested under voyage speed conditions for the ship.The sound signal intensity and the range of audibility for all possible length of vessels (according to COLREG, Annex III point 1.a-c) shall be covered by the test.The shipboard type testing shall be carried out with at least t

47、wo sound signals and up to the relevant audibility range of the sound signal (listed in Table 1).One signal shall meet the fundamental frequency range of 70 Hz to 200 Hz and has to be recognized up to 2 nautical miles and the other signal shall meet the fundamental frequency range of 250 Hz to 700 H

48、z and has to be recognized as specified in Table 1.Table 1 Sound signal intensity and range of audibilityLength of vesselmLimits of fundamental frequenciesHz1/3rd-octave band level at 1 m dB referred to 2 x 10 5 N/m2dBAudibility range in nautical miles 200 70 to 200 143 dB 275 up to 200 130 to 350 1

49、38 dB 1,520 up to 75 250 to 700 130 dB 1IALA Recommendation E-109, Recommendation on the calculation of the range of a sound signal2 IMO Resolution A.343(IX), Recommendation on Methods of Measuring Noise Levels at Listening Posts3 International Convention for the Safety of Life at Sea, 1974 (SOLAS 1974) ISO 2012 All rights reserved 11BS ISO 14859:2012ISO 14859:2012(E) ISO 2012 All rights reservedICS 47.020.70Price based on 11 pagesThis page deliberately left blankBSI is the independent national body re