Accession Number : ADA182765

Title :   The Control of Search Techniques and Search Strategies Using Petri Nets in the National Bureau of Standard's Real-Time Control System.

Descriptive Note : Master's thesis,

Corporate Author : LEHIGH UNIV BETHLEHEM PA

Personal Author(s) : Timpte, Barbara S.

Report Date : 1987

Pagination or Media Count : 129

Abstract : For over a decade, the National Bureau of Standards has been developing a control system to help facilitate the flexibility of machines and robots on the factory floor and to develop a true 'system' - an organized integrated whole made up of diverse but interrelated and interdependent parts. They established a set of rules by which to interface machines and computers in a work environment. The theory of control of this system is called the Real-Time Control System ( RCS ). The RCS is described as a system where high-level goals are decomposed through a succession of levels, each producing strings of simpler commands to the next lower level. The RCS system is now being applied to a real-life situation for the US Navy - the control of an unmanned underwater submarine to be used for deploying underwater mines, seeking and destroying enemy targets, and searching an area for charting. This thesis covers the application of the RCS to the search of an area by one or two of the underwater autonomous vehicles ( AUV ). This thesis addresses issues concerned with the valid techniques to be used in a two AUV search and the algorithms to be generated by an expert system that control the movements of the AUVs. It describes seven search techniques adapted from military techniques applied to foot soldiers.

Descriptors :   *ROBOTS, *CONTROL SYSTEMS, *INTERFACES, *UNDERWATER TRACKING, *MILITARY APPLICATIONS, *UNDERWATER VEHICLES, *UNMANNED, ALGORITHMS, DESTRUCTION, ENEMY, FLOORS, HOMING DEVICES, INDUSTRIAL PLANTS, INFANTRYMEN, MACHINES, REAL TIME, SEARCHING, STANDARDS, STRATEGY, SUBMARINES, TARGETS, UNDERWATER MINES, NETS, CONTROL THEORY, THESES, UNDERWATER TARGETS.

Subject Categories : Submarine Engineering
      Underwater and Marine Navigation and Guidance
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE