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Energy Tracking & Storage for an Autonomous System

Energy Tracking & Storage for an Autonomous System . OASIS Mir Ziyad Ali Liron Kopinsky Christopher Wallace Sarah Whildin Joseph Yadgar. Top Level Overview. Work Division. Mir Ziyad Ali Power Sarah Whildin Movement Joseph Yadgar Light Detection System Integration

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Energy Tracking & Storage for an Autonomous System

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  1. Energy Tracking & Storage for an Autonomous System OASIS Mir Ziyad Ali Liron Kopinsky Christopher Wallace Sarah Whildin Joseph Yadgar

  2. Top Level Overview

  3. Work Division • Mir Ziyad Ali Power • Sarah Whildin Movement • Joseph Yadgar Light Detection System Integration • Chris Wallace Hardware Design Implement Software • Liron Kopinsky Software Design Implement Software Liron Kopinsky

  4. Liron Kopinsky

  5. Liron Kopinsky

  6. Chris Wallace

  7. FPGA/PCB Interface • Ribbon Cables to Headers on the PCB • Configurable CMOS-CMOS Level Shifters. • VCC determines input level • VDD voltage determines output level • 6 Shifters per package Chris Wallace

  8. Power Save Mode Hardware -Data EEPROM 256 bytes-Timer(8-bit, 16bit), Interrupts PIC16F688-Program Memory: 7168 bytes-RAM: 256 bytes Chris Wallace

  9. Chris Wallace

  10. User Input and LCD • Push buttons on Spartan board to toggle information on LCD. • Optrex 16x4 parallel display. • Uses HD44780 controller chip • Will use GPIOs for writing to LCD. Chris Wallace

  11. Parts List • 7 - MC14504B CMOS-CMOS level shifters • 1 – Optrex 16x4 LCD • 1 – Spartan 3 Starter Board • 3 – 40 Pin Headers • 1 – PIC16F688 • 1 – IRF640 HEXFET Power MOSFET Chris Wallace

  12. Power System Mir Ziyad Ali

  13. Space Age Solar PanelsHighest Power to Size Ratio • SPE – 500 Dual Output Panels for 6 & 12 Volt Charging Systems. • Single-crystal silicon super cells used in space satellite applications. Lightweight and durable design-panels are encapsulated, temperature and weather resistant. • Three Panels connected in parallel to produce 27 Watts (1.5A, 18V) for the entire system. • Total weight is about 57 oz (3.52 lbs) • Size W" x L" : 12.25" x 26.25" Mir Ziyad Ali

  14. Charge Controller Mir Ziyad Ali

  15. Deep Cycle Battery • BP28-12 Maintenance - Free Rechargeable Sealed Lead-Acid 6 cell (in series) Battery. • 28 Ah 12V Storage capacity, which will supply power to our system for 6 hrs before recharging it for 18 hours with 1.5A charging current. • 20 hour rate F.V.(1.75V/cell) (1400 mA to 11.50 volts) • Approximate Weight 9600g (21.17lbs) • Maximum charge current is 8.5A • Dimension (inch) • Length ..........6.89 • Width ............6.54 • Height............4.92 Mir Ziyad Ali

  16. Switching Regulators • For all step-down DC-DC voltages, I’ll be using state-of-the-art TI’s PTN78000W: a series of high-efficiency, step-down Integrated Switching Regulator (ISR). This ISR will help me to reduce system power loss significantly contrary to linear voltage regulator that has considerable loss. It features • 1.5-A Output Current • Wide-Input Voltage (7 V to 36 V) • Wide-Output Voltage Adjust (2.5 V to 12.6 V) • High Efficiency (Up to 95%) • On/Off Inhibit • Output Current Limit • Overtemperature Shutdown • Operating Temp: –40°C to 85°C Mir Ziyad Ali

  17. Parts List • MUR 820 200V 8A TO-220AC Ultrafast POWER Diode • IRF640 HEXFET Power MOSFET 200V 18A • UC3525A PWM Chip 100kHz Pulse • TSC427 MOSFET Gate Driver • LF356 Operational Amplifiers • 220 μF [4], 10 μF[4], 1 μF [2], 1 nF [4] Capacitors • Transformers [2] (Inductance is determined) • 1N4730 Diode • 1k – 800 kΩ range Resistors. • SPE-500 18V, 500mA Solar Panel [3] • BP28-12 Lead Acid Battery • PTN78000W [2] and PT78ST105 [2] Switching Regulators Mir Ziyad Ali

  18. LED Light Sensors Joseph Yadgar

  19. 8:1 Multiplexer Joseph Yadgar

  20. Part List • Green LEDs (10) • ADC0804 Analog to Digital Converter Chips (10) • LF356N Op Amp Chips (10) • MAX308 8-Channel Analog Multiplexers (8) Joseph Yadgar

  21. Printed Circuit Board • Four layer board • Everything will be on the PCB except for the power system. • We will be mounting the devices using both surface mounts and DIPs. • We plan to have our first PCB layout done in the next week. Joseph Yadgar

  22. Motor Control SystemOverview • Logic signals sent from microprocessor to motor control system. • Motors operate in forward or reverse. • Shaft encoders detect position information. ΔV Sarah Whildin

  23. Motor Control Schematic Sarah Whildin

  24. Part List • 2 Stepper Motors with shaft encoders – Model AM23-150-2-ENC from Advanced Micro Systems, INC. • 2 Motor Drivers – KA3100D from Fairchild Semiconductor • 6 Optoisolators – Model 6N138 • 2 quadrature decoders – Model HCTL – 2032 from Agilent. • Various Capacitors and Resistors Sarah Whildin

  25. Questions OASIS Mir Ziyad Ali Liron Kopinsky Christopher Wallace Sarah Whildin Joseph Yadgar

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