1、BSI Standards PublicationBS ISO 22090-1:2014Ships and marine technology Transmitting headingdevices (THDs)Part 1: Gyro-compassesBS ISO 22090-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 22090-1:2014.It supersedes BS ISO 22090-1:2002 which is withdrawn
2、.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 the n
3、ecessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 79393 6ICS 47.020.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard w
4、as published under the authority of theStandards Policy and Strategy Committee on 31 March 2014.Amendments issued since publicationDate Text affectedBS ISO 22090-1:2014 ISO 2014Ships and marine technology Transmitting heading devices (THDs) Part 1: Gyro-compassesNavires et technologie maritime Dispo
5、sitifs de pilotage transmission de donnes Partie 1: Compas gyroscopiquesINTERNATIONAL STANDARDISO22090-1Second edition2014-03-01Reference numberISO 22090-1:2014(E)BS ISO 22090-1:2014ISO 22090-1:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless oth
6、erwise 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
7、 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 copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 22090-1:2014ISO 22090-1:2014(E) ISO 2014 All rights reserved iiiContents Pag
8、eForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Performance requirements . 44.1 Functionality . 44.2 Continuous operation . 44.3 Information 44.4 Fore and aft mark 44.5 Speed error correction . 44.6 Heading information 54.7 Status indication 54.8 Alert signal 54.9 Interfa
9、ce 55 Accuracy 55.1 General . 55.2 Accuracy of transmission data 55.3 Accuracy under static condition 65.4 Accuracy under dynamic condition 66 Type tests . 66.1 General . 66.2 Settling time test 76.3 Static error (settle point error) test 76.4 Settle point heading repeatability test . 76.5 Settling
10、time on a Scorsby table . 76.6 Scorsby test 86.7 Intercardinal motion test . 86.8 Follow-up error test 86.9 Speed error correction test 86.10 General requirement test . 96.11 Electromagnetic compatibility test 106.12 Interface test 107 Marking and identification .11Annex A (informative) Equivalent r
11、equirements in ISO 22090-1 and IMO Resolution 12Bibliography .13BS ISO 22090-1:2014ISO 22090-1:2014(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
12、 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 w
13、ork. 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 dif
14、ferent 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
15、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/pat
16、ents). 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 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO princi
17、ples in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee SC 6, Navigation and ship operations.This second edition cancels and replaces the first edition
18、(ISO 22090-1:2002), of which has been technically revised. It also replaces ISO 22090-1:2002/Cor1:2005.ISO 22090 consists of the following parts, under the general title Ships and marine technology Transmitting heading devices (THDs): Part 1: Gyro-compasses Part 2: Geomagnetic principles Part 3: GNS
19、S principlesAnnex A of this part of ISO 22090 is for information only.iv ISO 2014 All rights reservedBS ISO 22090-1:2014INTERNATIONAL STANDARD ISO 22090-1:2014(E)Ships and marine technology Transmitting heading devices (THDs) Part 1: Gyro-compasses1 ScopeThis part of ISO 22090 specifies the construc
20、tion, performance, and testing of gyro-compasses as transmitting heading device required by chapter V, SOLAS 1974 (as amended).A Transmitting heading device (THD) is an electronic device that provides information about the ships true heading.In addition to the general requirements contained in IMO R
21、esolution A.694(17) to which IEC 60945 is associated and the relevant standard for the sensing part used, the THD equipment shall comply with the following minimum requirements.Where the IMO performance standards that apply to the sensing part do not specify a geographical operating area that the TH
22、D shall operatea) at maximum rate of turn 20 /s andb) from 70 latitude south to 70 latitude north as minimum.The THDs complying with the requirements contained in this part of ISO 22090 can be used for heading information as contained in chapter V of the SOLAS Convention.However, ships within a spee
23、d range of 30 kn to 70 kn should comply with the requirements of IMO Resolution A.821(19).In addition, such THD should meet the dynamic requirements contained in the HSC Code, chapter 13 for the carriage of a suitable device providing heading information.NOTE 1 Several technologies can be used to de
24、tect and transmit heading information. It is illogical to standardize the detection of the heading separately from the transmission of the heading. Therefore, separate parts of this part of ISO 22090 refer to different technologies. The requirements of this part of ISO 22090 only apply to gyroscopic
25、 technology. Other technologies are covered in other parts of ISO 22090.NOTE 2 All requirements that are extracted from the recommendations of IMO Resolution MSC. 116(73) on performance standards for transmitting heading devices are printed in italics.2 Normative referencesThe following documents, i
26、n 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 25862, Ships and marine techno
27、logy Marine magnetic compasses, binnacles and azimuth reading devicesIEC 60945, Marine navigation and radiocommunication equipment and systems General requirements Methods of testing and required test results ISO 2014 All rights reserved 1BS ISO 22090-1:2014ISO 22090-1:2014(E)IEC 61162-1, Maritime n
28、avigation and radiocommunication equipment and systems Digital interfaces Part 1: Single talker and multiple listenersIEC 61162-2, Maritime navigation and radiocommunication equipment and systems Digital interfaces Part 2: Single talker and multiple listeners, high-speed transmissionIEC 61924-2, Mar
29、itime navigation and radiocommunication equipment and systems Inegrated Navigation Systems (INS) Part 2: Modular structure for INS Operational and performance requirements, methods of testing and required test resultsIMO Resolution MSC.116(73), Performance standards for marine transmitting heading d
30、evices (THDs)IMO Resolution MSC.252(83), Adoption of the revised performance standards for integrated navigation system (INS)IMO Resolution MSC.302(87), Adoption of performance standards for bridge alert managementIMO Resolution A.424(XI), Performance standards for gyro-compassesIMO Resolution A.694
31、(17), General requirements for shipborne radio equipment forming part of the global maritime distress and safety system (GMDSS) and for electronic navigational aidsIMO Resolution A.813(19), General requirements for electromagnetic compatibility (EMC) for all electrical and electronic ships equipment
32、IMO Resolution A.821(19), Performance standards for gyro-compasses for high-speed craft3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1gyro-compasscomplete equipment including all essential elements of the complete design including both the gyro
33、-compass as heading sensor and the associated heading transmission system3.2headingships heading to be input to the THD functionNote 1 to entry: It is defined by the direction of the vertical projection of the fore-and-aft line of the ship onto the horizontal plane. When measured relative to the tru
34、e north, magnetic north, or compass north, it is respectively defined as true heading, magnetic heading, or compass heading, and is usually expressed in degrees as a three-figure group, starting from north, in a clockwise direction around the compass card.3.3sensing partsensing function of detecting
35、 any heading information connected to the transmitting part3.4transmitting partdevice which receives heading information from the sensing part and converts this to the required accurate signal3.5true headinghorizontal angle between the vertical plane passing through the true meridian and the vertica
36、l plane passing through the crafts fore and aft datum line, measured from true north (000) clockwise through 3602 ISO 2014 All rights reservedBS ISO 22090-1:2014ISO 22090-1:2014(E)3.6transmission and resolution errorerror which is caused by the method used to transmit the original information to a r
37、eceiving deviceNote 1 to entry: Such a method may have a limited capability to code any possible value of the information, e.g. step output with 1/6 resolution. This error is also caused by the method used inside the THD and at its output to code the information.3.7static errorerror caused by any re
38、ason and which stays unchanged in value during the operation of the system, measured under static conditionsNote 1 to entry: This error is the same as that defined in 3.12.3.8dynamic errorerror caused by dynamic influences acting on the system, such as vibration, roll, pitch, or linear accelerationN
39、ote 1 to entry: This error may have an amplitude and usually a frequency related to the environmental influences and the parameters of the system itself. This error is the same as defined in 3.13.3.9follow-up errorerror caused by the delay between the existence of a value to be sensed and the availa
40、bility of the corresponding signal or data stream at the output of the systemEXAMPLE The difference between the real heading of a turning vessel and the available information at the output of the system.Note 1 to entry: A follow-up error disappears when the system is static.3.10settledstable situati
41、on when any three readings taken at intervals of 30 min are within a band of 0,7, with the compass level and stationaryNote 1 to entry: The settling time is the elapsed time between the time of switch-on at the initial heading error and the third recording of the settle.3.11settle point headingmean
42、value of ten readings taken at 20 min intervals after the compass has settled as defined in 3.103.12settle point errordifference between the settle point heading as defined in 3.11 and the true headingNote 1 to entry: See 3.73.13errordifference between the observed value and the settle point heading
43、 as defined in 3.11Note 1 to entry: See 3.8.3.14latitude errorerror to which some gyro-compasses are subject and whose magnitude and sign depend upon the local latitude ISO 2014 All rights reserved 3BS ISO 22090-1:2014ISO 22090-1:2014(E)3.15speed errorerror to which gyro-compasses are subject and wh
44、ose magnitude and sign depend upon the speed, course, and latitude of the ship3.16master compassmain compass unit which supplies the heading information to the transmitting part or other navigational aids3.17Scorsby tabletest machine which independently oscillates a platform about three axes and is
45、used to simulate the motion of a ship3.18intercardinal motionrepresenting an integral motion of the ship and is used for error test within motion in dynamic simulation test4 Performance requirements4.1 FunctionalityIn this part of ISO 22090, the gyro-compass is specified as the function of THD.The T
46、HD generates a heading signal and outputs a suitable signal for other devices.Any sensing part defined in 3.3 may be included in the device.If any correcting devices or parameters have been associated, they shall be protected against inadvertent operation.Manually entered values used for electronic
47、correction shall be indicated by adequate means.Gyro-compass units shall conform to the requirements listed in 4.2 to 4.8.4.2 Continuous operationThe equipment shall be capable of continuous operation under conditions of vibration, humidity, change of temperature, and variations of the power supply,
48、 as specified in 6.10.4.3 InformationAll displays with the exception of the sensor, and all outputs of heading shall indicate true heading.Indication shall be displayed, readable to a tenth of a degree.4.4 Fore and aft markThe compass shall be marked to facilitate installation in fore and aft line o
49、f the ship.4.5 Speed error correctionMeans shall be provided for correcting the errors induced by speed and latitude. An approved accurate speed source shall be used for automatic speed error corrections.4 ISO 2014 All rights reservedBS ISO 22090-1:2014ISO 22090-1:2014(E)4.6 Heading informationThe THD shall provide true heading information to the other navigational equipment.Heading information shall be provided as an output with accuracy as defined in Clause 5.4.7 Status indicationStatus shall be indicated that
