Virtual Traffic Signs Controller - Midterm Presentation -

1. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab Virtual Traffic Signs Controller - Midterm Presentation - Performed by: Shahar Wolf Ido Raz Project instructor: Mony Orbach Spring Semester ‘04

2. Project Goals • Design and Implement a controller for virtual traffic signs alert system, that will: • Manage data from the Motorola GSM/GPS G18 card. • Cross-analyze and integrate the GPS data and the traffic data from the GSM, according to known profiles. • Send appropriate feedback to driver (if necessary).

3. Hardware Architecture

4. GSM DSP GPS Hardware Architecture DB

5. DSP Block Diagram g18 evaluation board eZdSP GSM F2812 SCIA DRX DTX HOST PC Code Composer Studio RS-232 Level Converter RS-232 UART SCIB DRX DTX JTAG GPS On-board 1MB External memory

6. Inputs • From GPS module: • Data: • Coordinates (location) • Velocity • Direction of progress • etc… • Communication feedback: • Satellite communication status (locked/unlocked) • From GSM module: • Data: • Regional traffic data (signs, traffic info, etc…) • Communication status with the GSM cellular network • Contacting GSM network cells • Reception level • etc..

7. Outputs • Driver’s alert feedback: • Deviation from regional traffic profile (for example: exceeding max. speed, attention to risky situations, etc..) • Motorola G18 card (communication management): • GPS module: • Seek Satellite, lock Satellite, etc.. • GSM modules: • Seek cellular cell, contact cell, cells handshake, make sign of life, etc..

8. Layers and Modules Description • Search and manage Database • Analyze data according to known profiles • Send feedback to driver Application • GPS Module: • Communication functions • Get data: location, velocity • GSM Module: • Communication functions • Request/get traffic data Interface/Drivers Physical Layer GPS GSM

9. The Controller – G18 Interface • The F2812 DSP has two UART Serial Communication Interfaces (SCIA, SCIB), with which it will communicate with the g18 card, via two RS-232 ports. • RS-232 – CMOS level conversion between the two cards. • Communication with the g18 card will be at the HWI level. • Left to do: • Acquire RS-232 - 3.3V CMOS level converter. • Implement the communication drivers.

10. The Device Drivers Application Interface Level -control functions For Example: Init_communication(), Receive_Location() G18 Control Level - Implement control functions that send ATcommands: For Example: Network_Register(), Send_SMS(char *massage) - Interpret G18 feedback (SWI) RS-232 – UART Connection Level send(string), receive(string)interrupts through SCIA,SCIB

11. Analyzing System’s Performance Considerations for analyzing the systems performance: • Analyze effective communication buad rate (BPS). • Analyze application’s Modules Memory consumption on the DSP controller (working with/without DSP/BIOS). • The external memory is up to 1M total memory • Analyze response time of the system.

12. System Characteristics - DSP

13. System Characteristics – g18

14. Schedule – 1st Semester • Study the development environment: • Code Composer Studio– DONE! • The TI Controller features – DONE! • The Motorola G18 card interface – DONE! • Design the interface between the controller and the G18 card – 2 weeks until 30/5 - Started - While physical connection between the two cards is not yet established, the G18 card will be simulated using internal loopback of the SCIs. • Build GPS/GSM drivers – 6 weeks, milestones: • Build the Connection level interrupt handlers - 13/6 • Build the G-18 control level – 30/6 • Build the Application interface level – 18/7 • Simulate a primal test-case – End of 1st semester