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

2. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 2 Abstract One of the causes for traffic accidents is the driver’s alert of the road. In order to raise the driver’s attention to risky situations in the road there’s a need for a system that will alert the driver in the necessary cases. The Project’s goal: Design and Implement a controller for virtual traffic signs alert system

3. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 3 System Description The controller should get input GPS data from a GPS module and should get local traffic (signs) information from the local cellular network (through a GSM module). The system then should integrate and cross-analyze the GPS data and the traffic data from the GSM, according to known sign profiles. In case of recognizing a risky situation, the system should send appropriate feedback to driver.

4. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 4 Layers and Modules Description GSMGPS Physical Layer Interface/Drivers Application GSM Module: -Initiate Communication -Send \ Receive SMS GPS Module: -Initiate Communication -Get data: location, velocity, etc… -Search and manage Database -Analyze data according to known profiles -Send feedback to driver

5. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 5 Specification Hardware: Texas Instruments TMS320F2812 ezDSP controller (150MHz). Motorola G18 GSM/GPS card. Software: Code Composer Studio ANSI C/C++

6. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 6 Block Diagram F2812 SCIA RX TX SCIB RX TX DSP UART g18 evaluation board GPS GSM HOST PC Code Composer Studio JTAG eZdSP On-board 1MB External memory

7. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 7 Application algorithm SPAN CHK_RADIUS

8. Technion – Israel Institute of Technology Department of Electrical Engineering High Speed Digital Systems Lab 8 The DSP analyzing performance (cont.) Then we turned to optimize the code by using heavy function as minimum as possible (mainly by reducing the number of running of DecDeg function) and we received the following results: RemarkRate [ 1/sec] Elapsed Time [ m Sec] Number of Instruction Function Conversion to radians0.0081.3 K DecDeg 0.0111.7 K distance 0.0121.8 Kazimuth NOS = Number Of Signs In database 0.017 + NOS * 0.05 2.6K + NOS * 7.4 K CheckDriv er From the Rate parameter we find out that with GPS data update of 1 per second we can analyze approximately 20,000 signs from the database.