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- W2025455569 abstract "Application Of Personal Computers To Precision Rig Positioning And Lay Barge J.D. Hill; J.D. Hill Oceanonics Inc Search for other works by this author on: This Site Google Scholar J.R. Stoltz J.R. Stoltz Advance Systems Concepts Inc Search for other works by this author on: This Site Google Scholar Paper presented at the Offshore Technology Conference, Houston, Texas, May 1986. Paper Number: OTC-5195-MS https://doi.org/10.4043/5195-MS Published: May 05 1986 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Hill, J.D., and J.R. Stoltz. Application Of Personal Computers To Precision Rig Positioning And Lay Barge. Paper presented at the Offshore Technology Conference, Houston, Texas, May 1986. doi: https://doi.org/10.4043/5195-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsOffshore Technology ConferenceOTC Offshore Technology Conference Search Advanced Search ABTRACTThis paper describes how low cost personal computer technology was applied to complex oil rig positioning and pipe lay barge control operations in the Gulf of Mexico. Precision survey functions formerly computed separately on either hand or desk top calculators have now been combined into an integrated software package called MultiNav. MultiNav operates on a standard IBM PC/AT personal computer. Operational performance data consisting of color graphic survey displays, computational speeds, and system reliability over a three-year period will be presented to demonstrate the feasibility of the personal computer approach.INTRODUCTIONThe offshore marine survey industry operates under the constraint of having to rapidly mobilize men and equipment in order to meet a limited contract time requirement. The survey crews have to be versatile and be able to operate the survey equipment on any oil rig or survey vessel. The survey vessels range from vessels of opportunity, to large 400-foot class pipe lay barges. Thus, the concept of a permanent installation is difficult making a portable system attractive.The cost of marine surveys is an important consideration. Any approach that will minimize the total development costs associated with oil production is of utmost interest. In offshore surveying, cost reductions can be achieved by lowering the electronic equipment costs and by reducing the total time required by the survey crews to perform high precision work. Additionally, the use of computer generated visual aid and smart software which performs complex survey calculations with error checking significantly improves the reliability of the survey results.Oceanonics, Inc. undertook the development of the MultiNav system in May 1982. Alpha Systems Concepts, Inc. was contracted to perform the system development. The software developed for the MultiNav combined several existing algorithms and functions already in use by existing hardware. The IBM PC/AT was chosen as the base system and peripherals and software were added to satisfy the data processing and accuracy requirements. The concept of using the IBM PC/AT would be an interesting test since it was originally designed for home and office desk top applications and had to be interfaced to the two major positioning systems used by Oceanonics; Del Norte Trisponders and LORAN C.This paper provides a detailed description of the IBM PC/AT system and its comparative performance with a special design survey computer designed and manufactured by Integrated Data Systems, Inc.SYSTEM DESCRIPTIONThe system was designed to provide a low cost, portable, precision navigation and survey capability based upon the use of personal computers. The equipment layout is illustrated in Figure 1. The personal computers such as the IBM PC/AT are able to perform computing tasks similar to the main frame computers of the 1970' s. The same precision guidance river piloting functions performed by the St. Mary I s User II equipment (reference 1) are being performed more effectively and cheaper by the IBM PC/AT and other compatible personal computers. Keywords: lay barge, accuracy, computation, otc 5195, communication, buoy position, ibm pc, graphic display, personal computer, navigation Subjects: Information Management and Systems This content is only available via PDF. 1986. Offshore Technology Conference You can access this article if you purchase or spend a download." @default.
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