PLOTTER INTERFACED WITH A CALCULATOR

DESIGN CONSIDERATIONS AND TEST APPLICATIONS OF ON-LINE OPERATED WANG 700 DESK CALCULATOR INTERFACED WITH A WILD A-10 STEREOPLOTTER ARE DISCUSSED. UTLIZING THE INPUT/OUTPUT CONNECTOR OF THE CALCULATOR, A SPECIAL ELECTRONIC INTERFACE USING INTEGRATED TTL-CIRCUITS WAS BUILT. THREE SEPARATE UP-DOWN COUNTERS ACCEPT EITHER SQUARE-WAVE OR PULSE OUTPUT FROM THREE INCREMENTAL SHAFT ENCODERS. STROBED INTO A BUFFER IN PARALLEL, THE PULSE COUNTS ARE READ DIGITWISE INTO THE CALCULATOR. THE INPUT PROCESS CAN BE INITIATED FROM EITHER THE KEYBOARD MANUALLY OR UNDER PROGRAM CONTROL PERIODICALLY. THE MODULAR ARRANGEMENT FEATURES DATA ACQUISITION SPEEDS UP TO 60 SPATIAL MODEL POINTS PER SECOND FLEXIBLE AND SIMPLE PROGRAMMING AND VERSATILE OUTPUT FORMAT. AS A TYPICAL ON-LINE DATA ACQUISITION SYSTEM IT SIMULTANEOUSLY CAN DIGITIZE, STORE, DISPLAY AND PROCESS PHOTOGRAMING CAPABILITY. A VARIETY OF APPLICATIONS INCLUDE ON-LINE RELATIVE AND ABSOLUTE ORIENTATION, AVERAGING REPEATED MEASUREMENTS AND INDICATING CURRENT STANDARD DEVIATIONS, STRIP FORMATION FROM INDEPENDENT MODELS, CORRECTION FOR EARTH CURVATURE, ON-LINE COMPUTATIONS AND DISPLAY OF SCALED OR TRANSFORMED MODEL COORDINATES, DISTANCES, AREAS, OR VOLUMES. THE ABILITY TO UTILIZE THE SYSTEM AS A PROGRAMMABLE DESK CALCULATOR WHEN NOT IN USE FOR DATA ACQUISITION MAKES IT MUCH MORE VERSATILE AND ECONOMICALLY VIABLE THAN A DEDICATED COORDINATE DIGITIZER. /AUTHOR/

  • Authors:
    • Dorrer, E
    • Kurz, B
  • Publication Date: 1973-10

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Filing Info

  • Accession Number: 00203046
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 11 1974 12:00AM