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PRESENTED TO THE NDIA FUZE SYMPOSIUMAPRIL 9, 2003
THE ARMY’S INDUCTIVE FUZESETTER FOR EXCALIBUR
TOM WALKERCCAC FUZE DIVISION
TTank-automotive & AArmaments COMCOMmand
LeadershipTeaming
CommunicationEmployee SupportStrategic ThinkingOrganizational Climate
Providing AmericaAdvanced Armaments for
Peace and War
TW Walker, EPIAFS NDIA 2003.ppt 2
SETTERTEAM
• Sponsor: Mike Burke• System: Allison Marston• User: Ft Sill• Software
– Andy Leshchyshyn– Craig Freed– Mike McCall– Dave Gerstman
• Mechanical– George Eckstein– Jim Hartranft
• Electrical– Hai Pham– Len Goodman– Fred Oliver– Mike Irwin– Jerry Frazier– Tom Walker
TW Walker, EPIAFS NDIA 2003.ppt 3
Inductive SettingGun/Target LocationsGPS Data, Keys & Precise Time
PIK/EPIAFSto Support
Excalibur XM982
TrajectoryOptimized for
Range
Deploy Canards atApogee
GPS Acquisitionand Track
GPS satellite
Target
Targetinginfo
ØAdd GPS capability to M1155 PIAFS
FO
TW Walker, EPIAFS NDIA 2003.ppt 4
FUZE SETTERSYSTEM
• Platform Integration Kit (PIK)– Single board computer– GPS receiver & antenna– Auxiliary circuit– Cables
• EPIAFS• L1/L2 Antenna EPIAFS
PIK
L1/L2 ANTENNA
TW Walker, EPIAFS NDIA 2003.ppt 5
FSS BLOCK DIAGRAMX
M98
2 &
std
fuze
sGPS antenna
power
Talin (IMU)
ZEROkeys
GPS
JLW-155
SBC
PIK-HostSystem
ICD
AA Lithium
EPIAFS Aux pcb
PIK
BA-5800Lithium
Fire control
GPS-153BICD
28vpower
Reset
TW Walker, EPIAFS NDIA 2003.ppt 6
JLW-155
CLA
TW Walker, EPIAFS NDIA 2003.ppt 7
PIK
SBC
Auxiliary pcbGPS receiver
• 6 lbs• 9”x7”x4” size• 3 watts• Lithium AA battery
Battery cap
TW Walker, EPIAFS NDIA 2003.ppt 8
PIK BLOCK DIAGRAMPIK
GPS
SAASM
BDDP(CMOS) COM1
(RS-232)
28 VDC @ 4Amps
RF
I/O
SBC
Serial D(CMOS)
Serial 1(RS-422)
Serial 2(CMOS)
keyaudittrail
(flash)Serial 3
(RS-232)
ICD-GPS-153C
Ethernet
10pps
XM982tx/rx data
EPIAFScomm
regulators
5v, 3.3v
Serial A(CMOS)
ZEROkeys
AA Lithium
RS-422 drivers/receivers
RS-422 driver
L1/L2antenna
Talin
Host FCSand Power
Key FillSerial C(CMOS)
Ethernet
EPIAFSpower sw
TW Walker, EPIAFS NDIA 2003.ppt 9
PIK ALGORITHM
Power applied
Initialize SBC
Wait for request from Host System- receive fuze data- set fuze when EPIAFS enter switchis pressed and return results- interrogate fuze- return PIK status- return fuze history- return GPS key status- zeroize GPS keys- return software version- return BIT failure log
BIT: SBC,GPS, EPIAFS
Init GPS rcvr& EPIAFS
Establish links
TW Walker, EPIAFS NDIA 2003.ppt 10
PIK SINGLE BOARDCOMPUTER
• COTS: ADS“GraphicsMaster”
• 3 watts• 32M flash• 32M DRAM• 7 serial ports• Ethernet• 5”x7” size• LINUX OS
TW Walker, EPIAFS NDIA 2003.ppt 11
PIK GPS RECEIVER
• Rockwell Collins“MPE-S”
• SSI GRAM withSAASM
• 12 channel, L1/L2• ICD-GPS-153C• 1 pps & 10 pps• 3.3 volts, 3 watts• 3.5”x2.5”x0.6” size
• 3.5”diam• 0.7 lbs
Antenna
TW Walker, EPIAFS NDIA 2003.ppt 12
EPIAFS Exploded View
Bumper
Faceplateassembly
Battery cover& bumper
Cable to PIK connector
• 4.5 lbs, 12”x4.5”x4.5”• Alkaline or BA-5800• 1 watt (+ 4 watts heater)• Cabled XM982 & std
fuzes, uncabled std fuzes
D cells
TW Walker, EPIAFS NDIA 2003.ppt 13
EPIAFS BLOCK DIAGRAM
DC/DCCONV.
15V DC/DCCONV.
BATTERYPOWER
5V DC/DCCONV.
EEPROM &RESET
MICRO-CONTROLLER
RS-232DRIVER
USER INPUTS • INC • DEC
• ENTER
LCD, HEATER,
BACKLIGHT
STANAGCOIL
DRIVER
COILDEMOD.
STANAGCOIL
TEMPERATURESENSOR
VCCON/OFFSWITCH
PWMA/D
SPIUART
2.5 v ref
TUNINGCAPS
I/O
I/O
15 VOLTS
PIK-EPIAFScomm.
XM982 pwr/data
PIK SW28 v
DATA & PWRDRIVER
XM982 COIL
RX CKT
ALTERA PLDLOGIC
DAMPINGI/O
TW Walker, EPIAFS NDIA 2003.ppt 14
EPIAFS XM982 DATA CIRCUIT
XM982 TX/RX data formatexpanded data burst
3 power pulses + data burst = 112 us data burst 0 111
1 ms continuous power pulses 10 PPS
POWERSIGNAL
DATA WAVEFORM
TALKBACKTIMING
DATA FROM PIK
115.2 kHz DATA-CLOCK
8 MHz CLOCK
1ms100 us
DATA TO COIL
CTS TO PIK
DATA FROM COIL
TMP
POWER/TMPTO COIL DATA TO PIK
CLOCKS
TW Walker, EPIAFS NDIA 2003.ppt 15
FSS POWER CONSUMPTION
• Fuze setting off (GPS functionalfor Talin): 3 watts
• Fuze setting enabled– standby: 8 watts (13 watts cold)– set std fuze 3 sec : 9 watts (14 watts cold)– set Excalibur 3 sec: 95 watts (100 watts cold)
• EPIAFS uncabled– standby: 0.4 watt (4.4 watts cold)– set std fuze 3 sec: 1 watt (5 watts cold)
TW Walker, EPIAFS NDIA 2003.ppt 16
PIK DEMO
TW Walker, EPIAFS NDIA 2003.ppt 17
PIK - PROJECTILE DATA MESSAGES
• Time Mark Message (TMM) and ProjectileControl
• TMM and Crypto Keys• TMM and Target & Gun Data• TMM and Ephemeris (min. 4)• TMM and Almanac• TMM and Subframe Data• TMM and Projectile Control• TMM and Final Projectile Status Request
TW Walker, EPIAFS NDIA 2003.ppt 18
EXAMPLE 100 ms PIK TOPROJECTILE MESSAGE FRAME
• Sense when Time Mark Pulse arrives• Read Time Mark Message from GPS receiver• Send Time Mark Message to Projectile• Send Target and Gun data to Projectile• Request a Status Message from Projectile• Receive and Process the Projectile Status
TMP TMPTMMTARGET& GUN
PROJOSTATUS
100 ms
CMDRX
CMDRX
CMDTX
TW Walker, EPIAFS NDIA 2003.ppt 19
PLANS• Finish baseline EPIAFS software• Complete testing PLD design• Integrate PLD with coil driver circuit• Design & build 12v reg and 24v switch• Demonstrate PIK/EPIAFS brass-board• Update PIK & EPIAFS design• Convert EPIAFS software to new micro• Deliver prototype setters• User human factor evaluations• Assist PIK integration in JLW-155• Test PIK with prototype Raytheon GNC
TW Walker, EPIAFS NDIA 2003.ppt 20
CONCLUSION
• PIK Demonstration– XM982 data and power inductive
interface– Initialized projectile simulator– Validate PIK baseline software– First interface with Talin
• Host & XM982 interface testers• Draft ICD’s• FSS Prototype packaging