A Low Voltage Command-Arm System for Distributed Fuzing

1 A Low Voltage Command-Arm System for Distributed Fuzing DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NDIA Fuze Conference Presented by: July 7-9, 2015 Mark Etheridge Army Aviation and Missile Research, Baltimore, MD Development, and Engineering Center UNCLASSIFIED. Acknowledgements This project is sponsored by the Joint Fuze Technology Panel (JFTP). FATG II (Tailorable Effects). Paul Anderson, Naval Air Warfare Center Adedayo Oyelowo, Naval Surface Warfare Center 2 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Project Overview How complex is complex enough?

2 ? The JFTP sponsored project was successful in defining some minimal hardware & messaging guidelines. FESWG approval' in February, 2014. JOTP document has been started. A program was accepted by the JFTP to pursue form, fit, and function designs targeting the following programs: Low-Cost Tactical Extended Range Missile (LC-TERM; Army). Joint Multi-Effects Warhead System (JMEWS) program (Navy-China Lake). High Reliability DPICM Replacement (Navy-Indian Head). JMEWS. HRDR. LC-TERM. 3 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Project Overview All designs will be based on the Navy Architecture.

3 Most compliant with the safety standards and feedback regarding low Voltage signals. JFTP recommendation to pursue a single design. Goal is Initial Safety Certification or supportability statement from the Service Safety Review Authorities Arming Control Unit SmartDet Arm power Arm power Ground Filter & SmartDet Filter & Logic Regulators Logic power Regulators power Static Impact Switch 1. Impact Weapon Fire Detect HV. Feedback Latch Time Frequency Trigger Freq Windows Osc. RFU High Voltage High Voltage Latch Static Sw Umbillical Clk uC Flyback Capacitor Detect Disconnect Dynamic POR Dynamic Accel Serial Sequencer Switch Clk FPGA Serial Data Static Static Sw RFU Switch 2.

4 POR 1. POR POR POR 2. FPGA Clk 1 2. 4 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Project Overview Some unique aspects of the targeted applications . LC-TERM: will include warhead Fuzing and rocket motor ignition. HRDR: minimum 56 sub-munitions to arm; available sub-munition volume is very limited. JMEWS: arming environment signals airspeed thru pitot tube and turbogenerator sense signal Block diagrams for all applications have been developed. In beginning stages of detailed designs. 5 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED.

5 How complex is complex enough?? Proposed FESWG guidelines 6 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. DISCLAIMER!! The following slides are proposed guidelines. They have not been reviewed in detail by any fuze-related Safety Community organization (such as the FESWG). 7 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Proposed Guidelines Arming Control Unit ( the Master S&A). The ACU shall directly sense, process, and validate the physical arming environments and transmit the subsequent arming signals to the remote firing modules (RFMs).

6 ESAF. Arm Arm power power Arming Control Unit Filter & Logic Filter &. Control power +5vdc Arm power Regulators power Regulators Arm Ground Arm power Ground Filter & Logic AP. Regulators ESAF FPGA Detect power Environment 1. Impact Built In Test (BIT) Opto Opto Impact Environment 2 Arm power Input Input Verification Logic Static Switch 1. TO REMOTE. Weapon Fire Detect Impact Switch Sequence Verification Logic First Motion Detection Static Switch 2 FIRESET. Safe Separation Distance Latch Calculation Accelerometer Serial Comm To Remote Time Freq Frequency Simulator Fireset Windows Osc. Latch Clk POR.

7 UQS Generation Reset Umbillical Detect Disconnect Serial Serial Data Accel Serial Serial Data Clock Driver CLK Clock Clk FPGA Delay Serial Serial Clock Driver Com pa rat or POR POR. Validat ed Ana log Windowing &. 1 2 Inte nt 1 Profile Sam pling UQS UQS. Out Line Com pa rat or Validat ed Ana log Windowing &. Inte nt 2 Profile Sam pling Sequence &. Validat ed Reference Volta ges Target Inte nt Firing Seque nce Generation FPGA. 8 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Proposed Guidelines The ACU shall maintain an active link with all RFMs that are in use after the fuze System is properly armed.

8 Arming Control Unit SmartDet Arm power Arm power Ground Filter & SmartDet Filter & Logic Regulators Logic power Regulators power Static Impact Switch 1. Impact Weapon Fire Detect HV. Feedback Latch Time Frequency Trigger Freq Windows Osc. RFU High Voltage High Voltage Latch Static Sw Umbillical Clk uC Flyback Capacitor Detect Disconnect Dynamic POR Dynamic Accel Serial Sequencer Switch Clk FPGA Serial Data Static Static Sw RFU Switch 2. POR 1. POR POR POR 2. FPGA Clk 1 2 Status 9 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Proposed Guidelines The ACU shall source all power for the RFMs including Arm power .

9 All power slated for the RFM should be partitioned from other power such as electronics' power Arming Control Unit SmartDet Arm power Arm power Ground Filter & SmartDet Filter & Logic Regulators Logic power Regulators power Static Impact Switch 1. Impact Weapon Fire Detect HV. Feedback Latch Time Frequency Trigger Freq Windows RFU High High Umbillical Disconnect Detect Latch Osc. Clk uC. Static Sw Voltage Flyback Voltage Capacitor Option 1. Dynamic POR Dynamic Accel Serial Sequencer Switch Clk FPGA Serial Data Static Static Sw RFU Switch 2. POR 1. POR POR POR 2. FPGA Clk 1 2. Arming Control Unit SmartDet Arm Arm power power Filter & Filter & + Regulators Regulators + Logic power SmartDet Logic power Static Ground Switch 1.

10 Impact HV. Impact Feedback Weapon Detect Trigger `. Option 2 Fire Time Windows Latch Freq Frequency Clk RFU. uC. Static Sw High Voltage Flyback High Voltage Capacitor Osc. Latch Dynamic Detect POR Dynamic Umbillical Sequencer Switch Disconnect Static Accel Serial Clk Switch 2. Clk FPGA Serial Data RFU. POR 1. FPGA. POR 2. POR POR. 1 2. 10 DISTRIBUTION A. Approved for public release; distribution is unlimited. UNCLASSIFIED. Proposed Guidelines The ACU shall source all power for the RFMs including Arm power . All power slated for the RFM should be partitioned from other power such as electronics' power RFM-1.