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Experimenter Interface Panel (EIP)

Experimenter Interface Panel (EIP). Preliminary Design Review 9/11/09. Contents. GLOPAC EIP Refresher Post-GLOPAC Design Changes Cost Schedule. Overview. Status & Recap: The GLOPAC mission provided a platform for prototyping the new fleet-wide EIP.

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Experimenter Interface Panel (EIP)

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  1. Experimenter Interface Panel (EIP) Preliminary Design Review 9/11/09

  2. Contents • GLOPAC EIP Refresher • Post-GLOPAC Design Changes • Cost • Schedule

  3. Overview • Status & Recap: • The GLOPAC mission provided a platform for prototyping the new fleet-wide EIP. • The GLOPAC EIP established a baseline design meeting environmental requirements. • The GLOPAC EIPs mixed new and established technology to minimize schedule risk.

  4. Overview • Status & Recap (cont.) • The GLOPAC EIPs have some limitations. • Time-intensive to assemble and maintain • EIP must be opened to change fuses • Only 4 independent DC power switches • Thermal drift on current measurements • Do not support ER-2 style cockpit switch monitoring • Too large for very small payload areas

  5. Overview • Fleet-Wide Design Principles: • Address limitations of GLOPAC EIP • Maintain GLOPAC EIP Interfaces where possible. • Mechanical ICD • Experimenter Plug Electrical ICD (EICD) • Minimize Changes to remaining EICD & pinout • Goal: UAV EIP = Manned Aircraft EIP • Maintain identical core design and interfaces • Supply aircraft-specific options & features

  6. Overview • Development Flow: • Prototype & test major design changes • Use GLOPAC parts on the shelf (i.e. enclosure) • Revised DCMON PCB • Solid State Power Controllers (SSPCs) • Add manned aircraft options • (Optional) Develop 1-2 production EIPs in house for use as vendor wiring examples. • Full Production – 50 units

  7. Solid State Power Controllers • Limitations: The GLOPAC EIP… • only has 4 independent DC switches, • is time-intensive to assemble and maintain, and • must be opened to change fuses. • Solution: • Replace relays, fuses and associated wiring with 8 Solid State Power Controllers (SSPCs). • Simplifies monitor circuitry, thermal drift issue is addressed by default • Example SSPC: Ametek Amphion 10842 • Integrated relay, circuit breaker, arc-fault breaker, and circuit monitor in a 1.35” x 1.35” PCB-mount package. • Allows users to remotely reset tripped DC circuits. • Enables an EIP to be configured for discrete or ethernet-based relay control. • Greatly simplifies design of DCMON PCB.

  8. Cockpit Switch Monitoring • Limitation: The GLOPAC EIPs… • do not support ER-2 style cockpit switch monitoring. • ER-2 approach requires custom PCB in NAVREC, lamp driver relays in EIP, and lots of wire.

  9. Cockpit Switch Monitoring • Solution: Add EIP Lamp Driver option for EIPs deployed on manned aircraft. • Option is a PCB with SSRs that mounts above DCMON PCB. • In a discrete-controlled system, no modifications to the cockpit switch are necessary, and some cabling can be eliminated.

  10. Cockpit Switch Monitoring • In an ethernet-controlled system, modifications to the cockpit are necessary, and significant wire can be eliminated. • Further wire could be eliminated by moving the EIP Lamp-Driver SSRs to the cockpit switch.

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