IMO Performance Standards for IBS PERFORMANCE STANDARDS FOR INTEGRATED BRIDGE SYSTEMS

IMO Performance Standards for IBS

PERFORMANCE STANDARDS FOR INTEGRATED BRIDGE SYSTEMS (IBS)IBS: An integrated bridge system (IBS) is defined as a combination of systems which areinterconnected in order to allow centralized access to sensor information or command/control fromworkstations, with the aim or increasing safe and efficient ship's management by suitably qualifiedpersonnel.IBS, in addition to meeting the functional requirements contained in applicable IMO instruments,should comply with the followingperformance standards.SYSTEM REQUIREMENT:The IBS should support systems performing two or more of the following operations:.1 passage execution.2 communications.3 machinery control.4 loading, discharging and cargo control.5 and safety and securityGENERAL REQUIREMENTS1 The IBS should comply with all applicable IMO requirements and recommendations. Parts executingmultiple operations should meet the requirements specified for each individual function they control,monitor or perform.

2 Each "part" of an IBS should meet the relevant requirements andtheir associated technical testing standards. In consequence, the IBS is in compliance with theserequirements without further environmental testing.Note: "part" is meant to be - for example - an individual module, equipment or subsystem.3 A failure of one part should not affect the functionality of other parts except for those functionsdirectly dependent upon the information from the defective part.INTEGRATION:The IBS should provide functional integration meeting the following requirements:1 The functionality of the IBS should ensure that its operation is at least as effective as for stand-aloneequipment.2 The continuously displayed information should be reduced to the minimum necessary for safeoperation of the ship. Supplementary information should be readily accessible.3 Where multifunction displays and controls are used to perform functions necessary for safe operationof the ship they should be duplicated and interchangeable.4 It should be possible to display the complete system configuration, the available configuration andthe configuration in use.5 Each part to be integrated should provide details of its operational status and validity of essentialinformation. Means should be provided with the IBS to make use of this information.6 An alternative means of operation should be provided for essential functions.7 An alternative source of essential information should be provided. The IBS should identify loss of either source.8 The source of information (sensor, result of calculation or manual input) should be displayedcontinuously or upon request.DATA EXCHANGE:1. Interfacing to an IBS should comply with the relevant international marine interface standards.2. The integrity of data flowing on the network should be ensured.3/ A failure in the connectivity should not affect independent functionalityOPERATIONAL REQUIREMENTS1/The IBS should be capable of being operated by personnel holding appropriate certificates.2. The Man Machine Interface (MMI) should be designed to be easily understood.TECHNICAL REQUIREMENTS1. In order to ensure an adequate system functionality the sensors employed should ensurecommunication compatibility in accordance with the relevant international marine interface standard.2. The IBS alarm management, as a minimum, should comply with the requirements of the Code onAlarms and Indicators,3. The number of alarm types and their release should be kept as low as possible by providingindications for information of lower importance.4 Alarms should be displayed so that the alarm reason and the resulting functional restrictions can beeasily understood. Indications should be self-explanatory.5. If subjected to an orderly shut-down, the IBS should, upon tum-on, come to an initial default state.6. After a power interruption full functionality of the IBS should be available after recovery of allsubsystems. The IBS should not increase the recovery time of individual subsystem functions afterpower restoration.7. If subject to a power interruption the IBS should, upon restoration of power, maintain theconfiguration in use and continue automated operation, as far as practicable. Safety related automaticfunctions should only be restored upon confirmation by the operator.8. The IBS should be supplied:i) from the main and emergency sources of electrical power with automated changeover through a localdistribution board with provision to preclude inadvertent shut-down;.ii) from a transitional source of electrical power for a duration of not less than 1 min; andiii) where required, parts of the IBS should also be supplied from a reserve source of electrical power.