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This is NRL's Shipboard Damage Control page with information about various aspects of shipboard firefighting and damage control research. This information comprises various on-line research reports and information about the ex-USS Shadwell , the Navy's firefighting and damage control research ship. The Shadwellinformation includes guidelines for using the Shadwell 's Ethernet for retrieving fire test measurements from the shipboard sensors, and the virtual reality work that uses the Shadwell as its model.

Additional information about NRL, the Advanced Information Technology Branch, and the Navy Technology Center for Safety & Survivability is also available on-line. For links to many other Navy WWW information sources, visit the NavyOnLine page.


Online Reports


A Graphical User Interface Design for Shipboard Damage Control

The Damage Control Information Display System (DCIDS) is a graphical information-retrieval and equipment-control system that gives shipboard damage control personnel the ability to detect, analyze, and combat various types of damage control situations. This report presents a method of displaying information from shipboard damage control sensors graphically, and using the graphical display for operator control of selected equipment and system functions. Special consideration for the intended users' lack of computer experience has lead to a novel technique for providing easily recognized graphical cues for distinguishing graphical control structures from informational displays. The careful use of shading and positioning of graphics is used to create a three dimensional appearance and apparent motion for the controls, while information-only displays are drawn in a featureless two-dimensional (2-D) plane. The DCIDS graphical user interface can improve the performance of damage control personnel through the use of intuitive, easy to use graphical displays and controls.

D. L. Tate, "A Graphical User Interface Design for Shipboard Damage Control," NRL Report 9355, August 26, 1991.

Interface Protocol Requirements for Shipboard Damage Control Systems

Damage control systems are evolving rapidly into large, complex systems with a potential of collecting vast quantities of detailed information. To handle this information effectively, damage control systems will be transformed from their traditional centralized architectures to more efficient and more survivable distributed architectures. A coherent method of transferring information across distributed networks is required in the form of an interface protocol that can be used by damage control systems and personnel to quickly assess damage situations and initiate corrective actions. This report addresses the requirements of such a protocol and discusses related network and computer architecture issues, and their impact on the overall system design.

D. L. Tate, "Interface Protocol Requirements for Shipboard Damage Control Systems," NRL Report NRL/FR/5533-92-9525, September 30, 1992.

The Damage Control Information Display System for the Ex-USS Shadwell

The Damage Control Information Display System (DCIDS) is a graphical information-retrieval and equipment-control system that gives shipboard damage control personnel the ability to detect, analyze, and combat various types of damage control situations. A prototype of DCIDS has been developed for use aboard the ex-USS Shadwell , the Navy's full scale fire research and test ship from which damage control and ship survivability investigations, analyses, and evaluations are performed. This DCIDS implementation runs on a PC-compatible computer under MicroSoft Windows and communicates with the Shadwell 's data collection computer through an Ethernet TCP/IP connection. This report describes the operation and use of the DCIDS program, and provides the user interface and information management specifications for modification of the program for other fire test scenarios and equipment interfacing.

D. L. Tate, "The Damage Control Information Display System for the Ex-USS Shadwell," NRL Report NRL/FR/5535-93-9589, September 30, 1993.

Ethernet Options for the Ex-USS Shadwell

Ethernet has been selected as the data communications network to interconnect various damage control sensors, equipment, workstations, and PCs on the ex-USSShadwell . This paper addresses questions regarding the obtainable capacity of Ethernet and the choices for the physical configuration of the network.

D. L. Tate and F. W. Williams, "Ethernet Options for the Ex-USS Shadwell," NRL Letter Report 6180-54, February 8, 1993.

Real Time Data Access Aboard the Ex-USS Shadwell

This report describes the method for retrieving fire test measurement data from the MassComp computer on tthe ex-USS Shadwell using TCP/IP connections on theShadwell 's Ethernet network.

D. L. Tate, T. Riddle, and F. W. Williams, "Real Time Data Access Aboard the Ex-USS Shadwell," NRL Letter Report 6180/393.1, July 15, 1993.
Online report. This report is included in its entirety as an appendix to NRL Report NRL/FR/5535-93-9589 listed above.

Development of a Tactical Decision Aid for Shipboard Damage Control

Shipboard damage situations require rapid decision making to prevent serious injury to personnel, damage to ship systems, or loss of the ship. As the Navy proceeds toward more complex ship systems and reduced manning, a means of automating the decision making process is needed to assist damage control personnel in taking corrective actions. Because of the incompleteness or uncertainty of damage control information, conventional computational techniques are not suitable for use in damage control situations. A tactical decision aid based on expert systems technology can be used to evaluate facts and their relative uncertainty, and apply a set of rules to draw inferences that lead to possible problem solutions.

This report describes the development of a tactical decision aid for shipboard damage control that uses a rule-based expert system based on information from Navy damage control tactics, procedures, and doctrine, together with information from fire research and firefighting experts. This expert system can receive information, assess its significance, and recommend corrective action. The expected payoffs include reduced damage control response time, consistency of responses and corrective actions, and a reduction in manning with no reduction in performance.

D. L. Tate, "Development of a Tactical Decision Aid for Shipboard Damage Control," NRL Report NRL/FR/5580-96-9837, November 20, 1996.

NOTE: The on-line reports have been reformatted for viewing with WWW browsers, and are not exact copies of the published reports. Typefaces, indentations, and figures will generally have a different appearance. Contact tate@itd.nrl.navy.mil to obtain copies of the original reports.



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