Accession Number : ADA114428

Title :   Hydraulic Universal Display Processor System (HUDPS).

Descriptive Note : Final rept. 1 Apr-1 Sep 81,


Personal Author(s) : Duzich,John J ; Dreksler,Herman L

Full Text :

Report Date : 21 Nov 1981

Pagination or Media Count : 66

Abstract : This six month study effort explored methods of display fault indication to ground support personnel and optimize microprocession circuitry for universal aircraft application. Task I was established the maximum number of sensors required for a complex, comprehensive diagnostic system for the F14A as 150: Inputs could be either analog or digital. For comparison purposes, an A6E system was considered. Fault display methods were investigated with emphasis on smart alphanumeric devices in Task II. Volatile and non-volatile memory components were utilized along with the Intel 8748 microprocessor and associated EPROMS. The use of National Semiconductor ADCO816 data acquisition chips consisting of a 16 input multiplexer, an 8 bit A/D converter and an 8 bit tri-state buffered output facilitates the many inputs. Power consumption for a complete system was estimated as 5 watts while airborne. On the ground, 15 watts at 5 volts is required for display requirements. Display envelope would measure 8x7x6 and would contain approximately 6 circuit boards. In Task III a universal display processor system was formulated. A Block Diagram and several flow diagrams were generated. Multiplexer schematics were established for analog and discrete inputs. An electrical component parts list was generated for a typical system. (Author)

Descriptors :   *Aircraft , *Faults , *Hydraulic equipment , *Display systems , *Alphanumeric displays , Systems engineering , Data processing , Memory devices , Microprocessors , Multiplexing , Diagnostic equipment , Ground support , Diagrams , Flow charting

Subject Categories : Aircraft
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE