MODULAR AZIMUTH POSITION SYSTEM MAPS

1
MODULAR AZIMUTH POSITIONING SYSTEM MAPS
2
COMPONENTS
VMS
BATTERY CHARGER
DRU POWER SWITCH
RDU
DRU
KEEP ALIVE BATTERY
DRU CONROL BOX
3
RADAR DISPLAY UNIT (RDU)

• SELF CONTAINED CONTROL AND DISPLAY UNIT - SYSTEM
  MASTER
• INITIATES SYSTEM TURN-ON, TURN-OFF RESTART, OR
  BUILT-IN TESTING.
• PROVIDES THE OPERATOR WITH CURRENT SYSTEM STATUS,
  NAVIGATION DATA, ALERT INFORMATION, WARNINGS, AND
  OPERATOR ASSISTANCE MESSAGES.
• ACCEPTS ALIGNMENT AND POSITION UPDATE DATA.
• RECEIVES POWER FROM DRU.

4
RDU CONTROL AND INDICATORS

• DISPLAY
• HAS FOUR LINES TO PROMPT THE OPERATOR AND ALLOW
  INPUT OF DATA.
• LINE 1 - RESERVED FOR STATUS AND WARNING MESSAGES
• LINE 2 - USED TO INDICATE FUNCTION
• LINE 3 4 - USED FOR DATA.
• KEYBOARD
• USED FOR ENTRY AND RETRIEVAL OF DATA.
• ANNUNCIATORS
• ANNUNCIATORS LOCATED ON BOTTOM OF DISPLAY.

5
RDU CONTROLS INDICATORS
ANNUNCIATORS
6
DYNAMIC REFERENCE UNIT (DRU)

• SELF-CONTAINED INERTIAL NAVIGATION SYSTEM
• GENERATES POSITION DATA RELATIVE TO THE MOVEMENT
  OF THE VEHICLE BASED OFF A KNOWN STARTING
  POSITION
• RECEIVES OPERATING POWER FROM THE HOST VEHICLE,
  GENERATOR POWER OR KEEP-ALIVE BATTERY

7

• DRU SWITCH BOX
• CONNECTS KEEP-ALIVE BATTERY AND ATG POWER
  TO DRU
• DISCONNECTS ALL POWER SOURCES FROM DRU
• BATTERY NORMAL/LOW LIGHTS SHOW RELATIVE CHARGE
  OF THE KEEP-ALIVE BATTERY
• LOCATED IN REAR WELL OF ANTENNA TRAILER

8

• DRU CONTROL BOX
• MOUNTED IN THE CAB OF THE HOST HEHICLE ON A
  TRAY BETWEEN THE DRIVER AND A-DRIVER
• WHEN LIT, THE POWER SWITCH IS ON, AND THE
  KEEP-ALIVE BATTERY IS CONNECTED TO THE HOST
  CHARGING SYSTEM

DRU CONTROL BOX
9

• VEHICLE MOTION SENSOR (VMS)
• USED AS AN ACCURACY AID FOR THE DRU
• CONNECTED TO THE SPEEDOMETER CABLE AND MEASURES
  TRANSMISSION/WHEEL SPIN
• SHOULD VMS DATA NOT COINCIDE WITH DRU DATA, VMS
  IS AUTOMATICALLY DISABLED

SPEEDOMETER CABLE FROM TRANSMISSION TO VMS
10
KEEP-ALIVE BATTERY

• USED IN THE TRANSITION PHASE FROM HOST VEHICLE
  TO GENERATOR POWER
• PROVIDES UP TO 60 MINUTES OF POWER
• RECHARGED BY HOST VEHICLES CHARGING SYSTEM OR
  BY THE BATTERY CHARGER
• BATTERY
• DRU

11
BATTERY CHARGER

• RECEIVES OPERATING POWER FROM THE GENERATOR
• CONVERTS AC INPUT TO DC OUTPUT TO MAINTAIN THE
  CHARGE ON THE KEEP ALIVE BATTERY

12
SYSTEM OPERATING PROCEDURES

• TWO MODES OF OPERATION
• 1. ALIGNMENT MODE INITIATED WHEN POWER IS
  TURNED ON
• PRESENT POSITION MAY BE ENTERED
• 2. SURVEY MODE NORMAL OPERATING MODE
• AUTOMATICALLY ENTERED WHEN INITIALIZATION IS
  COMPLETE
• ZERO VELOCITY UPDATES (ZUPT) COMPUTER PROMPTED
  OR OPERATOR PROMPTED

13
SYSTEM OPERATING PROCEDURES
THE OPERATOR CAN INTERACT WITH MAPS FROM TWO
POSITIONS 1. INSIDE THE CAB OF THE HOST
VEHICLE 2. AT THE REAR OF THE ANTENNA
TRAILER TO MOVE FROM ONE POSITION TO THE OTHER
WITHOUT LOSING DATA OR CAUSING AN ABNORMAL
SHUTDOWN, SIMPLY DISCONNECT FROM ONE AND HOOKUP
TO THE OTHER WITHOUT TURNING THE POWER OFF. THIS
ALLOWS FOR CONTINUOUS DATA GOING FROM SITE TO
CONVOY AND VICE VERSA
14
ALIGNMENT MODE

• ALIGNMENT MODE CONSISTS OF SYSTEM POWER UP, BUILT
  IN TESTS AND INITIALIZATION
• POWER UP
• ENSURE RADAR IS STOPPED OVER A KNOWN POINT
• ENSURE MAPS HAS POWER APPLIED
• ACTIVATE THE SYSTEM BY PRESSING THE ON KEY
• WATCH DISPLAY FOR SYSTEM RESPONSE
• RECEIVES POWER FROM DRU

15
ALIGNMENT MODE

• AS THE SYSTEM IS COMING UP, IT IS TESTING THE
  COMM LINKS BETWEEN THE VARIOUS PARTS OF MAPS
• PASS OR FAIL WILL DISPLAY FOR EACH COMPONENT
• IF THERE ARE NO PROBLEMS, VMS PASSED AND GPS
  PASSED WILL BE DISPLAYED

16

• EXAMPLES OF FAIL MESSAGES ARE SHOWN AT RIGHT
• THE RDU AUTOMATICALLY ENTERS THE INITIALIZATION
  ROUTINE IF THERE ARE NO FAULTS WITH THE BUILT IN
  TESTS

17

• INITIALIZATION ROUTINE
• LAST KNOWN DATA IS USED IF NO KEYS ARE PRESSED
  WITHIN 2 MINUTES. ALL ENTRIES ARE CHECKED FOR
  REASONABLENESS
• SELECT SPHEROID FROM THE MENU USING THE ?KEY
  AND PRESS ENTER

18

• INITIALIZATION ROUTINE
• ENTER SITE GRID ZONE AND PRESS ENTER
• ENTER SITE UTM EASTING AND PRESS ENTER

19

• INITIALIZATION ROUTINE
• ENTER FOR THE NORTHERN AND FOR THE
  SOUTHERN HEMISPHERE
• ENTER UTM SITE NORTHING AND PRESS ENTER

20

• INITIALIZATION ROUTINE
• ENTER OR ALONG WITH SITE ALTITUDE IN METERS

21

• INITIALIZATION ROUTINE
• WHEN INITIALIZATION IS COMPLETE, IF DATA IS NOT
  REASONABLE, THE RDU WILL DISPLAY A REJECT MESSAGE
• AFTER INITIALIZATION IS COMPLETE, ENTERED
  COORDINATES ARE DISPLAYED AND THE GO
  ANNUNCIATOR WILL FLASH
• SYSTEM IS NOW IN THE SURVEY MODE

22
SURVEY MODE

• AUTOMATICALLY ENTERED UPON COMPLETION OF
  INITIALIZATION
• DISPLAYS GRID ZONE AND UTM GRID WHEN UTM KEY
  IS PRESSED
• DISPLAYS SITE ALTITUDE WHEN ALT KEY IS
  PRESSED
• DISPLAYS GRID AZIMUTH WHEN AZ KEY IS PRESSED
• GRID AZIMUTH REPRESENTS THE LINE BISECTING THE
  RADAR TRAILER GOING FROM THE REAR THROUGH THE
  TOWING PINTLE

23
DISPLAYS SITE ALTITUDE WHEN ALT KEY IS PRESSED
24

• DISPLAYS GRID AZIMUTH WHEN AZ KEY IS PRESSED
• GRID AZIMUTH REPRESENTS THE LINE BISECTING THE
  RADAR TRAILER GOING FROM THE REAR THROUGH THE
  TOWING PINTLE

25
SYSTEM SHUTDOWN

• TWO TYPES NORMAL ABNORMAL
• NORMAL SHUTDOWN
• ACCOMPLISHED BY PRESSING THE SHIFT AND OFF
  KEYS
• DRU STORES POSITION DATA BEFORE TURNING OFF
• IF THE SYSTEM IS NOT MOVED, RETAINED DATA FOR
  THE LAST KNOWN POSITION WILL BE DISPLAYED WHEN
  SYSTEM IS TURNED BACK ON

26
SYSTEM SHUTDOWN

• ABNORMAL SHUTDOWN
• CAUSES INCLUDE LOSS OF POWER FROM GENERATOR
  OR KEEP ALIVE BATTERY, CABLE DISCONNECT, OR
  SHUTTING DOWN BEFORE ALIGNMENT IS COMPLETE
• SYSTEM DISPLAYS ---- OR ???? WHEN POWERED
  UP AFTER AN ABNORMAL SHUTDOWN
• OPERATOR MUST ENTER NEW POSITION DATA FOR
  SYSTEM TO INITIALIZE

27
SYSTEM MAINTENANCE

• CONSISTS OF PREVENTIVE MAINTENANCE CHECKS AND
  SERVICES (PMCS) AND BUILT IN TESTS (BIT)
• PMCS
• CLEAN AND DUST
• CHECK FOR CUT, DENTED, BENT, BURNED OUT OR
  LOOSE COMPONENTS
• CHECK EQUIPMENT FOR COMPLETENESS AND OPERATION
• CHECK BATTERY FOR LIQUID LEVEL, CRACKS, LEAKS
  AND CHARGE

28
SYSTEM MAINTENANCE

• BIT
• INITIATED BY PRESSING THE SHIFT THEN TEST
  KEYS
• USED WHEN A FAULT OCCURS OR DURING ROUTINE
  MAINTENANCE
• CAUSES SELF TESTS OF THE DRU, RDU, AND VMS
• IF ANY TESTS FAIL, NOTIFY HIGHER

29
QUESTIONS