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Smart Road Sensor PDR presentation

Performed by Lior David and Alon Perlis Supervised by Boaz Mizrachi. Smart Road Sensor PDR presentation. Summer 2011. Agenda. Problem definition Project objectives Input specifications Hardware overview Data flow Software design Timeline. Problem Definition.

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Smart Road Sensor PDR presentation

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  1. Performed by Lior David andAlon Perlis Supervised by Boaz Mizrachi Smart Road SensorPDR presentation Summer 2011

  2. Agenda • Problem definition • Project objectives • Input specifications • Hardware overview • Data flow • Software design • Timeline

  3. Problem Definition • The client would like to measure and analyze the effect of vehicles on road surfaces and layers • Over long periods of time • In various placements • Automatic and manual triggering • Easy data retrieval

  4. Project Objectives • Design and implementation of (almost) complete system for seismic measurements • Selection of suitable components • Sensors integration • Software framework in the form of RTOS • Digital signal processing • Power management • (Communication)

  5. Input Requirements • 3 axis acceleration • micro-g resolution • Temperature measurement • Communication

  6. Hardware Overview KB12VD Piezoelectric Accelerometer ADXL312 Analog Devices digital 3-axis digital accelerometer I2C ADC AD7682 PIC24FJ256GB110 Microchip microcontroller Communication In-house driver for KB12VD SPI SPI SPI EEPROM Batteries Key pad LCD SD card

  7. Software Design • Real time, preemptive operating system for the PIC microcontroller • Modular design • Robust hardware drivers for later development • Basic signal processing

  8. Software Design (cont’d)

  9. Data Flow

  10. Gantt Diagram

  11. Team’s commitment • 20 weekly man-hours • Lior - Sunday morning and Monday 12:00-18:00 • Alon - Monday as free day and Friday as needed • Weekly meeting with the supervisor

  12. How will it work? SRS

  13. Thank you! Questions?

  14. Backup Slides

  15. System Parameters

  16. Piezoelectric sensor Cx = dxyFyb / a Cxis the amount of charge Fxis the applied Force in x direction where a is the dimension in line with the neutral axis, b is in line with the charge generating axis and d is the corresponding piezoelectric coefficient.

  17. KB12VD

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