| タイトル | A highly reliable, autonomous data communication subsystem for an advanced information processing system |
| 著者（英） | Alger, Linda; Masotto, Thomas; Nagle, Gail |
| 著者所属（英） | Draper (Charles Stark) Lab., Inc. |
| 発行日 | 1990-04-01 |
| 言語 | eng |
| 内容記述 | The need to meet the stringent performance and reliability requirements of advanced avionics systems has frequently led to implementations which are tailored to a specific application and are therefore difficult to modify or extend. Furthermore, many integrated flight critical systems are input/output intensive. By using a design methodology which customizes the input/output mechanism for each new application, the cost of implementing new systems becomes prohibitively expensive. One solution to this dilemma is to design computer systems and input/output subsystems which are general purpose, but which can be easily configured to support the needs of a specific application. The Advanced Information Processing System (AIPS), currently under development has these characteristics. The design and implementation of the prototype I/O communication system for AIPS is described. AIPS addresses reliability issues related to data communications by the use of reconfigurable I/O networks. When a fault or damage event occurs, communication is restored to functioning parts of the network and the failed or damage components are isolated. Performance issues are addressed by using a parallelized computer architecture which decouples Input/Output (I/O) redundancy management and I/O processing from the computational stream of an application. The autonomous nature of the system derives from the highly automated and independent manner in which I/O transactions are conducted for the application as well as from the fact that the hardware redundancy management is entirely transparent to the application. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 91N12696 |
| 権利 | Copyright, Distribution within the U.S. granted by agreement |
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