Showing papers on "Control reconfiguration published in 1972"

Optimal Control, Repair, and Inventory Strategies for a Linear Stochastic System

Abstract: A class of linear systems is studied which is subject to random failures. In such systems the designer must specify strategies for both control and repair. The dynamic interaction of these two facets of the problem is explored, and it is shown that quick repair permits a reduction in gains in the feedback loop. An algorithm is presented for finding the optimal controller and the best policy of repair.

An Experimental Service for Adaptable Data Reconfiguration

Abstract: The ARPA computer network (ARPANET) is a nationwide network of diverse autonomous computers connected via a message-switching store-and-forward communications subnet using leased wide-band (50-kbit/s) telephone lines. A primary objective of the ARPANET is to share preexisting programs and data. Many of the difficulties of using remotely generated programs and data are found to be simple format incompatibilities requiring data manipulations like character set conversion, header prefacing and stripping, packing and unpacking of repeated data, generating counters and flags, and field transposition. The data reconfiguration service (DRS) is an attempt to provide a convenient way of performing these data manipulations in order to mediate between superficially incompatible data streams connecting existing programs in the ARPANET. Desiring to match two incompatible input-output streams, an applications programmer specifies a data stream transformation (called a form) written in the data reconfiguration language (DRL). Associating the appropriate form name with the connection between his two programs, the programmer causes the DRS to follow his instructions on how the specified data streams are to be manipulated in the communication required to make the two programs cooperate over the ARPANET. Components of the DRS include the specification of its special-purpose data reconfiguration language, a form compiler to translate forms into fast-running transformation programs, an interpreter to perform high-speed data transformations at application program run time, and a standard set of ARPANET protocols for the routine handling of connections and form specifications between operating systems.

Data Reconfiguration Service Compiler: Communications Among Heterogeneous Computer Centers Using Remote Resource Sharing.

Abstract: : The report describes the use, implementation, and maintenance procedures for the Data Reconfiguration Service (DRS) Compiler which is coded in PL/1. The report provides an overview of the language in which data- reconfiguration definitions are expressed. Syntax is stated in a formal notation.