47.020.70 导航和控制设备 标准查询与下载

GSO IEC 61097-1:2014 全球海上遇险和安全系统 (GMDSS) 第1部分：雷达应答器 海上搜索和救援 (SART) 操作和性能要求、测试方法和所需的测试结果

This part of IEC 61097 specifies the performance standards and type testing of marine radar transponders used in search and rescue operations at sea (SART), as required by Regulation 6.2.2 of Chapter III, and 7.1.3 and 8.3.1 of Chapter IV of the 1988 amendments to the 1974 International Convention for Safety of Life at Sea (SOLAS), and which is associated with IEC 60936 (Shipborne radar) and IEC 60945 (General requirements). This standard incorporates the performance standards of IMO Resolutions A.530 (13) and A.802 (19) (Survival craft radar transponders for use in search and rescue operations) and the technical characteristics for such transponders contained in ITU-R Recommendation M.628-4, and takes account of the general requirements contained in IMO Resolution A.694 (17). NOTE 1 The categories of SART operation which are applicable to the stated SOLAS Regulations, IMO Resolutions and ITU-R Recommendation are: a) integral with a survival craft; b) portable and capable of floating; c) as part of an EPIRB. NOTE 2 This standard does not include non-SOLAS options for instance those envisaged in ITU-R Recommendation 628-4 - Considering (b). All text whose meaning is identical to that in IMO Resolutions A.530 (13), A.694 (17), A.802 (19) and ITU-R Recommendation M.628-4 is printed in italics.

Global maritime distress and safety system (GMDSS) - Part 1: Radar transponder - Marine search and rescue (SART) - Operational and performance requirements, methods of testing and required test results

GSO IEC 61162-3:2014 无线电通信和海上导航系统和设备 数字接口 第3部分：串行数据设备网络

This part of IEC 61162 is based upon the NMEA 2000 standard. The NMEA 2000 standard contains the requirements for the minimum implementation of a serial-data communications network to interconnect marine electronic equipment onboard vessels. Equipment designed to this standard will have the ability to share data, including commands and status, with other compatible equipment over a single signalling channel. Data messages are transmitted as a series of data frames, each with robust error check confirmed frame delivery and guaranteed latency times. As the actual data content of a data frame is at best 50 % of the transmitted bits, this standard is primarily intended to support relatively brief data messages, which may be periodic, transmitted as needed, or on-demand by use of query commands. Typical data includes discrete parameters such as position latitude and longitude, GPS status values, steering commands to autopilots, finite parameter lists such as waypoints, and moderately sized blocks of data such as electronic chart database updates. This standard is not necessarily intended to support high-bandwidth applications such as radar, electronic chart or other video data, or other intensive database or file transfer applications. This standard defines all of the pertinent layers of the International Standards Organisation Open Systems Interconnect (ISO/OSI) model, from the application layer to the physical layer, necessary to implement the required IEC 61162-3 network functionality. This standard defines data formats, network protocol, and the minimum physical layer necessary for devices to interface. SOLAS applications shall employ redundant designs (for instance dual networks, redundant network interface circuits) to reduce the impact of single point failures. The NMEA 2000 standard provides the fundamental tools and methods to support redundant equipment, buses and messaging. Specific shipboard installation designs are beyond the scope of this standard, however some guidance is given in Annex A. Relationships between IEC 61162-1 sentences and IEC 61162-3 parameter group numbers are given in Annex B.

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 3: Serial data instrument network

GSO IEC 61023:2014 船用导航和无线电通信系统和设备 速度和距离测量船用设备（SDME） 性能要求、测试方法和所需的测试结果

This International Standard specifies the minimum performance requirements, methods of testing and required test results of devices to indicate speed and distance – speed and distance measuring equipment (SDME) required by Regulation 19 of Chapter V of the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended, and which is associated with IEC 60945. This standard is based upon the requirements of IMO Resolution MSC.96(72). The clause numbering of that resolution is indicated in parentheses in Clause 4 and all subclauses whose meaning is identical to that in the resolution are printed in italics. In the tests of Clause 5, the corresponding requirement of Clause 4 is indicated in parentheses. The cross-references between the IMO performance standards in Resolution MSC.96(72) and the tests of this standard are summarized in Annex A.

Maritime navigation and radiocommunication equipment and systems - Marine speed and distance measuring equipment (SDME) - Performance requirements, methods of testing and required test results

GSO IEC 61162-450:2014 无线电通信和海上导航系统和设备 数字接口 第450部分：多个扬声器和多个听众 以太网互连

This part of IEC 61162 specifies interface requirements and methods of test for high speed communication between shipboard navigation and radiocommunication equipment as well as between such systems and other ship systems that need to communicate with navigation and radio-communication equipment. This part of IEC 61162 is based on the application of an appropriate suite of existing international standards to provide a framework for implementing data transfer between devices on a shipboard Ethernet network. This standard provides a higher speed and higher capacity alternative to the IEC 61162-1 and IEC 61162-2 standards while retaining these standards’ basic data format. This standard provides a higher data capacity than IEC 61162-3. This standard specifies an Ethernet based bus type network where any listener may receive messages from any sender with the following properties. • This standard includes provisions for multicast distribution of information formatted according to IEC 61162-1, for example position fixes and other measurements, as well as provisions for transmission of general data blocks (binary image), for example between radar and VDR. • This standard is limited to protocols for equipment (Network nodes) connected to a single Ethernet network consisting only of OSI level one or two devices and cables (Network infrastructure). • This standard provides requirements only for equipment interfaces. By specifying protocols for transmission of IEC 61162-1 sentences and general binary image data these requirements will guarantee interoperability between equipment implementing this standard as well as a certain level of safe behaviour of the equipment itself. • This standard permits equipment using other protocols than those specified in this standard to share a network infrastructure provided that it is supplied with interfaces which satisfy the requirements described for ONF (see 4.6). • This standard does not contain any system requirements other than the ones that can be inferred from the sum of individual equipment requirements. Thus, to ascertain system properties that cannot be derived from equipment requirements alone, additional analysis or standards will be required. In particular, this applies to requirements to maintain system functionality in the face of a single point failure in equipment or networks. Informative Annex D contains guidance on how to address such issues.

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection

GSO ISO 11674:2014 船舶和航海技术 控制系统简介

This International Standard specifies the structure, performance, inspection and testing of heading control systems to be installed on board ships. It applies to the heading control systems which enable a ship to keep a preset heading with minimum operation of the ship's steering gear, within limits related to the ship's manoeuvrability in conjunction with their sources of heading information. The heading control system may work together with a track control system adjusting its heading for drift. A turn rate control or a turning-radius control for performing turns may be provided. NOTE All the text in this International Standard identical to that in IMO Resolutions [Resolution A.342(IX) as amended by resolution MSC.64(67), Annex 3 and Resolution A.694(17)] is printed in italics.

Ships and marine technology -- Heading control systems

GSO IEC 61108-1:2014 海上导航和无线电通信设备和系统 全球导航卫星系统（GNSS） 第1部分：全球定位系统（GPS） 接收器设备 性能标准、测试方法和所需的测试结果

This part of IEC 61108 specifies the minimum performance standards, methods of testing and required test results for GPS shipborne receiver equipment, based on IMO Resolution MSC.112(73), which uses the signals from the United States of America, Department of Defence (US DOD), Global Positioning System (GPS) in order to determine position. A description of the GPS SPS is given in the normative reference – GPS, SPS signal specification – USA Department of Defence – 3rd Edition October 2001. This receiver standard applies to phases of the voyage "other waters" as defined in IMO Resolution A.529(13). All text of this standard, whose meaning is identical to that in IMO Resolution MSC.112(73), is printed in italics and the Resolution and paragraph number indicated between brackets i.e. (M.112/A1.2). The requirements in clause 4 are cross-referenced to the tests in clause 5 and vice versa.

Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 1: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results

GSO IEC 61162-2:2014 无线电通信和海上导航系统和设备 数字接口 第2部分：单扬声器和多个听众 高速传输

This part of IEC 61162 contains the requirements for data communication between maritime electronic instruments, navigation and radiocommunication equipment when interconnected via an appropriate interface. This standard is intended to support one-way serial data transmission from a single talker to one or more listeners. This data is in printable ASCII form and may include any information as specified by approved sentences or information coded according to the rules for proprietary sentences. Typical messages may be from 11 to a maximum of 79 characters in length and generally require repetition rates up to once per 20 ms. The electrical definitions in this standard are intended to accommodate higher data rates than are specified in IEC 61162-1. Since there is no provision for guaranteed delivery of messages and only limited error-checking capability, this standard should be used with caution in all safety applications. Annex A contains a list of relevant IMO resolutions and ITU recommendations to which this standard applies.

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 2: Single talker and multiple listeners, high-speed transmission

GSO IEC 61097-4:2014 国际海上遇险安全和遇险系统（GMDSS） 第4部分：INMARSAT-C 船舶地面站设备和 INMARSAT 群呼增强设备 操作要求和性能要求、测试方法和所需测试结果

This part of IEC 61097 specifies the performance requirements and methods of testing for Inmarsat-C ship earth stations (SES) capable of transmitting and receiving direct-printing communications, and for enhanced group call (EGC) receivers, for use in the GMDSS and for use for long-range identification and tracking (LRIT). The available variants are: Class 0: An EGC receiver, either stand-alone or an element of a GMDSS installation in accordance with the Inmarsat design and installation guidelines (DIGs) for GMDSS installations. Class 1: A basic SES providing shore-to-ship and ship-to-shore message transfer only. Class 2: As class 1 but with EGC as an alternative to shore-to-ship transfer using a shared receiver. Class 3: As class 1 but with EGC using an independent receiver. NOTE 1 The 34th session of the IMO Sub-Committee on Radiocommunications decided that class 2 equipment would be adequate to provide sufficient availability for the reception of maritime safety information for the GMDSS. The standard complies with IMO performance requirements stated in the normative references, Inmarsat technical characteristics and test procedures, and IEC 60945 general requirements except where modifications are explicitly stated in this standard. Technical characteristics essential to GMDSS and LRIT operation as defined by the IMO are identified. All text of this standard, whose wording is identical to that in IMO SOLAS Convention 1974 as amended in 1988 and Resolutions A.807(19), MSC.263(84) and MSC.306(87) is printed in italics and reference made to the Resolution/Recommendation and subclause number. This standard covers equipment construction and testing. Matters relating to installation may also be found in the Inmarsat Maritime design and installation guidelines (see Bibliography). Those to be found in IMO Resolutions A.807(19), MSC.263(84) and MSC.306(87) are reproduced in Annex A. Responsibility for type approval of Inmarsat-C and Inmarsat-EGC is vested in Inmarsat by IMO Resolutions A.807(19) and MSC.306(87) (see 3.2.1). Therefore, this standard does not reproduce Inmarsat test procedures in full, but refers to where they are given in Inmarsat documentation cited in the normative references to this standard (Annex C). NOTE 2 For the purposes of this standard the terms Inmarsat-C, Inmarsat Standard-C, Standard-C refer to the same equipment.

Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results

GSO IEC 61108-4:2014 海上导航和无线电通信设备和系统 全球导航卫星系统（GNSS） 第4部分：船载 DGPS 和 DGLONASS 海上无线电信标接收器设备 性能要求、测试方法和所需测试条件

This part of IEC 61108 specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards not inferior to those adopted by the IMO in resolution MSC.114(73). In addition, it takes account of IMO resolution A.694(17) and is associated with IEC 60945. When a requirement of this standard is different from IEC 60945, the requirement in this standard shall take precedence. This standard may be satisfied by equipment integral with GNSS equipment. This standard is applicable to HSC. All text of this standard, whose wording is identical to that in IMO resolution MSC.114(73) and ITU-R M.823 is printed in italics and the resolution (abbreviated to – 114 and M.823 respectively ) and paragraph numbers are indicated in brackets i.e. (114/3.3 or M.823/3.3 ).

Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment - Performance requirements, methods of testing and required test r

GSO IEC 60945:2014 船用导航和无线电通信系统和设备 一般要求 试验方法和要求的试验结果

This International Standard assists in meeting a requirement of the International Convention for Safety of Life at Sea (SOLAS), adopted by the International Maritime Organization (IMO), that the radio equipment defined in chapters III and IV, and the navigation equipment defined in chapter V of the Convention, be type-approved by administrations to conform with performance standards not inferior to those adopted by the IMO. (Administrations are defined by the IMO as governments of the states whose flags the ships are entitled to fly.) The performance standard for general requirements for shipborne radio equipment and electronic navigation aids that has been adopted by the IMO is given in IMO Resolution A.694 and is reproduced in this standard as annex A, which forms the basis for this standard. Reference is made, where appropriate, to IMO Resolutions A.694 and A.813 and all subclauses whose wording is identical to that in the resolutions are printed in italics. This standard specifies minimum performance requirements, methods of testing and required test results for general requirements which can be applied to those characteristics common to all equipment described hereunder: a) shipborne radio equipment forming part of the global maritime distress and safety system required by the International Convention for Safety of Life at Sea (SOLAS) as amended, and by the Torremolinos International Convention for the Safety of Fishing Vessels as amended; b) shipborne navigational equipment required by the International Convention for Safety of Life at Sea (SOLAS) as amended, and by the Torremolinos International Convention for the Safety of Fishing Vessels as amended, and to other navigational aids, where appropriate; and c) for EMC only, all other bridge-mounted equipment, equipment in close proximity to receiving antennas, and equipment capable of interfering with safe navigation of the ship and with radio-communications (see IMO Resolution A.813). NOTE For EMC, this standard is in the IEC category “product family”. The requirements of this standard are not intended to prevent the use of new techniques in equipment and systems, provided the facilities offered are not inferior to those stated.

Maritime navigation and radiocommunication equipment and systems - General requirements - Methods of testing and required test results

GSO IEC 61097-13:2014 国际海上遇险和安全系统 (GMDSS) 第13部分：运行 Inmarsat F77 系统的船舶的地面站设备 操作要求和性能要求、测试方法和所需的测试结果

This part of IEC 61097 specifies the minimum operational and performance requirements, technical characteristics, methods of testing and required test results for INMARSAT F77 ship earth stations (SES), capable of transmitting and receiving distress and safety communications, initiating and receiving distress priority calls and transmitting and receiving general radiocommunications, using radiotelephony (voice), as required within Regulation IV/10.1 and 14.1 of the 1988 amendments to the 1974 International Convention for the Safety of Life at Sea (SOLAS), for use in the GMDSS. The INMARSAT F77 is intended to meet the voice requirements of IMO Resolution A.888(21). In order to meet the GMDSS carriage requirements of SOLAS in respect of receipt of SafetyNET broadcasts and direct printing telegraphy, it is necessary to install a combined INMARSAT C/EGC transceiver in addition to the INMARSAT F77 equipment. Annex B provides more information. Since Class 1 INMARSAT A and B ship earth stations meet the data requirement of GMDSS, although not necessarily those of MSC.130(75), the F77 cannot necessarily be considered as a direct replacement for these ship earth stations. This standard also takes into account the priority access (voice pre-emption) requirements of IMO Resolution A.888(21). This standard takes account of IMO Resolution A.694(17) to which is associated IEC 60945. When a requirement in this standard is different from IEC 60945, the requirement in this standard shall take precedence. This standard incorporates the performance standards of IMO Resolution MSC.130(75) and the clarifications of certain requirements in IMO performance standards for GMDSS Equipment defined in IMO MSC Circular 862. It also incorporates the relevant ITU Radio Regulations. All text of this standard, whose wording is identical to that in the IMO SOLAS Convention 1974 as amended, IMO Resolutions and IMO MSC Circular 862, is printed in italics and the Resolution or Recommendation and paragraph number indicated between brackets. It is a requirement of INMARSAT Ltd that all INMARSAT F77 mobile earth station models be type-approved by INMARSAT before they can be allowed access to the INMARSAT space segment. This testing is designed to demonstrate that the equipment under test will be compatible with the INMARSAT F77 system and will not cause interference to other satellite users. It is recommended that approval authorities accept testing organized and supervised by INMARSAT, which results in INMARSAT type approval, without additional testing other than that defined in this standard. It is also recommended that equipment manufacturers rationalize the test requirements of this standard and those of INMARSAT before embarking on the approval process. NOTE This standard does not incorporate the INMARSAT system requirements needed for INMARSAT type approval. For these, the latest edition of “INMARSAT mini-M SDM Change Note No. 65” should be consulted. When a requirement in this standard is different from one in the above-mentioned INMARSAT document, reference shall be made to the most recent IMO and ITU applicable documents to resolve the difficulty.

Global maritime distress and safety system (GMDSS) - Part 13: Inmarsat F77 ship earth station equipment - Operational and performance requirements, methods of testing and required test results

GSO IEC 61924-2:2014 无线电通信和航海导航系统和设备 组合导航系统 第2部分：组合导航系统的典型结构 INS 操作要求和性能要求、试验方法和要求的试验结果

This part of IEC 61924 specifies the minimum requirements for the design, manufacture, integration, methods of testing and required test results for an integrated navigation system (INS) to comply with the International Maritime Organization (IMO) requirements of Resolution MSC.252(83). In addition, it takes account of IMO Resolution A.694(17) to which IEC 60945 is associated. When a requirement in this standard is different from IEC 60945, the requirement of this standard takes precedence. NOTE 1 IEC 61924:2006 specifies the minimum requirements for the design, manufacture, integration, methods of testing and required test results for an integrated navigation system to comply with the earlier IMO requirements of Resolution MSC 86(70), Annex 3. Integrated navigation systems in accordance with IEC 61924:2006 are not suitable for installation after 1 January 2011. NOTE 2 All text of this standard, whose wording is identical to that in IMO Resolution MSC.252(83) will be printed in italics and the Resolution and paragraph number indicated between brackets

Maritime navigation and radiocommunication equipment and systems - Integrated navigation systems - Part 2: Modular structure for INS - Operational and performance requirements, methods of testing and required test results

GSO IEC 61097-2:2014 全球海上遇险和安全系统（GMDSS） 第2部分：COSPAS-SARSAT EPIRB 在 406 MHz 上运行的卫星紧急位置指示无线电信标 操作和性能要求、测试方法和所需的测试结果

This part of IEC 61097 specifies the minimum performance requirements, technical characteristics and type-testing requirements of the satellite emergency position-indicating radio beacon used in the COSPAS-SARSAT satellite system (satellite EPIRB), as required by Regulation IV/7.1.6 of the 1988 amendments to the 1974 International Convention for Safety of Life at Sea (SOLAS), and which is associated with IEC 60945. When a requirement in this standard is different from IEC 60945, the requirement in this standard takes precedence. This standard incorporates the performance standards of IMO Resolution A.810(19), the International Telecommunication Union (ITU) Radio Regulations as well as the technical characteristics for such transmitters contained in Recommendation ITU-R M.633, and takes account of the general requirements contained in IMO Resolution A.694(17). This standard further takes account of IMO Resolution A.696(17) concerning the type approval of satellite EPIRBs. This standard also includes minimum performance standards for a non-float-free satellite EPIRB without float-free release mechanism (see Annex C). NOTE 1 Although a number of the requirements and tests may be similar this standard is not intended to be used with 406 MHz Ship Security Alert System (SSAS) Beacons. All texts of this standard, whose wording is identical to that in the IMO SOLAS Convention 1974 as amended and Resolutions A.662(16), A.694(17), A.702(17) and A.810(19) and Recommendation ITU-R M.633 will be printed in italics and the Resolution/Recommendation and paragraph number indicated between brackets. NOTE 2 Classes of satellite EPIRB's considered in this document are: – Class 1: Float-free (–40 °C to +55 °C). The float-free release mechanism (A.662(16)) should be capable of operating throughout the temperature range of –30 °C to +65 °C. This class is not required by IMO Resolutions but may be applied at the discretion of each Administration. – Class 2: Float-free (–20 °C to +55 °C). The float-free release mechanism (A.662(16)) should be capable of operating throughout the temperature range of –30 °C to +65 °C. NOTE 3 Non float-free, satellite EPIRB's in both classes are considered in Annex C. NOTE 4 All classes include a 121,5 MHz homing device, described in Annex D. NOTE 5 All classes may include beacon position data, obtained from a navigation device internal or external to the satellite EPIRB as described in Annex B. NOTE 6 User experience of COSPAS-SARSAT satellite EPIRB operation leading to some clarification of IMO performance standards, and providing some useful information for satellite EPIRB users is included in Annex E.

Global maritime distress and safety system (GMDSS) - Part 2: COSPAS-SARSAT EPIRB - Satellite emergency position indicating radio beacon operating on 406 MHz - Operational and performance requirements, methods of testing and required test results

KS X IEC 61924-2:2014 海上导航与无线电通信设备和系统.综合航海系统.第2部分:综合航海系统的模块化结构.操作和性能要求、测试方法和要求的测试结果

Maritime navigation and radiocommunication equipment and systems — Integrated navigation systems — Part 2: Modular structure for INS — Operational and performance requirements, methods of testing and required test results

ISO/PAS 19697:2014 船舶与海洋技术. 导航和船舶营运. 电子测斜仪

Ships and marine technology - Navigation and ship operations - Electronic inclinometers

BS EN 62288:2014 海上导航和无线电通信设备和系统.船用导航显示器的相关导航信息的表达.通用要求、试验方法和要求的试验结果

Maritime navigation and radiocommunication equipment and systems. Presentation of navigation-related information on shipborne navigational displays. General requirements, methods of testing and required test results

KS V ISO 6582:2014 造船 机器数字控制 ESSI格式

이 표준은 ESSI 형식에 대하여 규정한다. 이 표준은 요구되는 프로그램의 다양성을 최소화하고, 프로그램 기술의 통일성을 증진시키며, 조선소에서 사용되고 있는 수치 제어 도면 및 불꽃 절단 기계 간의 프로그램의 상호 교환성을 촉진하기 위하여 시스템 설계 조정에 있어서 하나의 가이드로 사용된다.?

Shipbuilding ? Numerical control of machines ? ESSI format

KS V ISO 25861:2014 船舶与海洋技术 导航 昼光信号灯

이 표준은 해상에서의 인명안전 국제협약(SOLAS) 1974년 개정판의 제5장 및 고속선 안전 국제코드의 제8장에 따라 발효 중인 주간 신호등에 대한 성능기준[IMO 결의서 MSC.95(72)]에 적합한 특정의 선박에 대하여 요구되는 주간 신호등에 대하여 규정한다.이 표준의 문구가 MSC.95(72)의 것과 동일한 경우, 그런 모든 본문은 이탤릭체로 되어 있으며, 모든 결의서 및 조항번호는 괄호 안에 표시되어 있다.?

Ships and marine technology — Navigation — Daylight signalling lamps

KS V ISO 8729-1:2014 船舶与航海技术《船用雷达反射器》第1部分：无源型

통상 유리 섬유 강화 플라스틱(GRP)으로 제작되는 소형선박은 레이더 신호에 대한 반사 신호가 부족할 수 있다고 인식되고 있다. 선박 항해 중 가장 중요한 관측 수단으로 레이더가 사용되고 있는 상황에서, 국제해사기구(IMO)는 총톤수 150톤 이하의 소형 선박은 레이더 반사를 증가시켜 레이더의 가시성(visibility)을 향상시키기 위한 레이더 반사기를 장착하도록 요구하고 있다.이 표준은 IMO MSC. 164(78) 결의서로부터 요구된 소형 선박으로부터 반사되는 신호를 증가시킬 목적으로 사용하는 레이더 반사기에 대한 최소 요구사항을 규정하고 있다.이 표준은 레이더 반사기의 제작, 성능, 시험, 검사 및 설치에 대한 사양에 대해 규정하고 있다.레이더 반사기는 두 가지 형식(수동형 및 능동형)이 있다. 능동형 반사기가 전자기적 장치이고 수동형 반사기는 기계적 장치이다. 이 표준은 수동형 반사기를 다룬다.?

Ships and marine technology — Marine radar reflectors — Part 1: Passive type

KS V ISO 25861-2014(2019) 船舶和海洋技术 - 导航 - 日光信号灯

Ships and marine technology — Navigation — Daylight signalling lamps