Accession Number : ADA194625

Title :   LRS-II: A Specialized Knowledge System for Launch Resource Scheduling.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Crawford, James E , Jr

PDF Url : ADA194625

Report Date : Dec 1987

Pagination or Media Count : 116

Abstract : This research used the Level 5 expert system software to develop a specialized knowledge system called the Launch Resource Scheduling system (LRS-II). LRS-II will be used as a decision aid by USSPACECOM to determine if there is sufficient launch capability to meet future satellite requirements and to quickly assess the impact of contingencies such as launch or on-orbit failures. LRS-II uses multiple knowledge bases to match satellite launch requirements to available launch vehicles, launch pads, and upper stages. Specialized knowledge about satellite requirements and launch resources are stored in dBase III files. Level 5 knowledge base rules match specific fields of the satellite record against fields in the resource records to schedule the earliest launch resources that meet the satellite requirement. If two different types of launch vehicles are capable of launching a satellite, LRS-II selects the launch vehicle that meets the requirement earliest. If the satellite constellation allows multiple satellites on a single launch vehicle, specialized knowledge bases are executed to manifest the additional satellites. During manifesting, the constraints of satellite and resource availability, site processing time, shuttle mission duration, and satellite on-orbit checkout time are used to insure the selected launch date is accurate.

Descriptors :   *DECISION MAKING, *RESOURCE MANAGEMENT, *SPACE MISSIONS, *SPACE SHUTTLES, *COMPUTER APPLICATIONS, AVAILABILITY, CHECKOUT PROCEDURES, LAUNCH VEHICLES, LAUNCHING, ORBITS, PROCESSING, RECORDS, RESOURCES, SCHEDULING, SITES, THESES, TIME, MILITARY REQUIREMENTS, ARTIFICIAL INTELLIGENCE

Subject Categories : Administration and Management
      Computer Programming and Software
      Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE