Download Refined Use Case Model - Electrical and Computer Engineering

List of Illustrations
Figure 1: Cardinal Coordinate Mapping ............................................................................. 7
Figure 2: Quadrant Calculation........................................................................................... 7
Figure 3: Destination-Vector Range ................................................................................... 7
Figure 4: µTracker Block Diagram..................................................................................... 9
Figure 5: Timing interaction of multiple serial port commands in succession................. 14
Figure 6: Data output and interaction with LCD display when a button is pressed ......... 15
Figure 7: Timing interaction of the tracking command operation.................................... 16
Figure 8: Timing interaction of the set command operation............................................. 17
Figure 9: AT89C51RC2 Memory Mapping ..................................................................... 18
Figure 10: µTracker Hardware Schematic........................................................................ 20
Figure 11: Atmel ISP Circuit for AT89c51RC2 UART Programming ............................ 21
Figure 12. Prototype.......................................................................................................... 24
Figure 13: LCD Interface General Utilization .................................................................. 26
Figure 14: Off Mode Display............................................................................................ 27
Figure 15: Initializing Display .......................................................................................... 28
Figure 16: Standby Display .............................................................................................. 29
Figure 17: Scroll Down Display ....................................................................................... 30
Figure 18: Scroll Up Display ............................................................................................ 31
Figure 19: Track Mode Display........................................................................................ 32
Figure 20: System Initialization Procedure....................................................................... 34
Figure 21: Sony GXB5210 Initialization Sequence.......................................................... 36
Figure 22: On State Operating Sequence.......................................................................... 37
Figure 23: To Stand-By Operating Sequence ................................................................... 39
Figure 24: Stand-By Operating Sequence......................................................................... 40
Figure 25: GPS Low Power Mode Switching................................................................... 41
Figure 26: GPS Power Up Mode Switching ..................................................................... 42
Figure 27: Track Mode Operating Sequence .................................................................... 43
Figure 28: Destination Direction Calculation Sequence................................................... 45
Figure 29: General Stage Changing Sequence.................................................................. 46
Figure 30: GPS Data-Parsing Sequence ........................................................................... 47
Figure 31: Detailed View of the GPS Data-Parsing Sequence ......................................... 48
Figure 32: GPS Data-Number Parsing.............................................................................. 49
GPS µTracker Final Report
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