Digital Airborne Data System.
Abstract
An exploratory development project is described that has resulted in the successful design and demonstration of a digital data transmission and multiplexing system called the Digital Airborne Data System (DADS). The DADS system exploits the increased system flexibility and greater reliability realized from the use of modular construction and large-scale integrated (LSI) circuit techniques. In this system all avionic subsystems communicate over a single time-shared network bus. The information on the network bus is represented in a digital format and is transmitted serially. Up to 15 data terminals can communicate over this network bus. A major accomplishment of this project was the design and successful demonstration of a simple breadboard model of the DADS system -- consisting of two data terminals connected by redundant buses. During this project, advanced research was conducted in the areas of signal conversion, network bus techniques, and fault tolerance. These studies resulted in preliminary designs for signal conversion building block modules, network bus circuits and a fault tolerant system design incorporating failure detection, redundancy and reconfiguration. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1971
- Accession Number
- AD0892890
Entities
People
- John Anderson
- Lynn M. Anderson
- Vincent V. Nickel
Organizations
- Hughes Aircraft Company