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TrackYourTeenDriver TYTD Group 7 Members: Shadi Ghominejad Pamela Gregoire Sanda Lo

Goals and Objectives. To allow parents the capability of monitoring the location of their teen driver's vehicleMonitor their teen's driving behaviorInform parents when an alert occurs via SMSReceive operating commands from parents via SMSHold all surveyed locations so that they may be viewed Pr

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TrackYourTeenDriver TYTD Group 7 Members: Shadi Ghominejad Pamela Gregoire Sanda Lo

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    1. TrackYourTeenDriver (TYTD) Group 7 Members: Shadi Ghominejad Pamela Gregoire Sanda Lo

    2. Goals and Objectives To allow parents the capability of monitoring the location of their teen driver’s vehicle Monitor their teen’s driving behavior Inform parents when an alert occurs via SMS Receive operating commands from parents via SMS Hold all surveyed locations so that they may be viewed Provide an easy-to-use system Provide a secure website that manages all user data

    3. Overall System Block Diagram The Informer (NFO) is the mobile unit that performs monitoring of location and driving behavior. TRACKON MODE: It uses a two-way SMS messaging interface to alert parents and to receive commands from the parent. TRACKOFF MODE: It uses a software interface via USB connection to parents’ computer to upload stored data from its memory to the web server.

    4. Work Distribution: Our project was broken down into three major chunks: Pam: Microcontroller and peripherals Sanda: GSM/GPS modem and peripherals Shadi: Software interface

    5. Budget

    6. Informer Requirements and Specifications 1 encapsulation device for components 1 rechargeable power source capable of supplying at least 3.7 V with a rating of 1000mAh minimum 1 PIC18F4550 microcontroller 1 UART (on-chip) interface to GPS/GSM modem 1 USB interface (on-chip) for microcontroller connection to PC/laptop 1 DE-ACCM5G accelerometer to read g-force of up to 2g 1 A/D converter (on-chip) to interface microcontroller to accelerometer and to monitor battery level periodically 1 Hitachi LM052L LCD 2 line by 24 character user display 1 LM2621 Step-up DC-DC converter for LCD +5V need 1 Mini Buzzer audible beep device RS#273-053A The alarm will notify the parent’s cell phone in no more then 10 minutes 1 Grayhill 88AB2-143 keypad interface for device control 1 standard cellular charger power adapter for the cigarette lighter of the vehicle to connect to NFO Voltage level translation from microcontroller outputs to GSM/GPS inputs

    7. Microcontroller Original Block diagram for Informer Some changes have been made to optimize pins available from controller: The power source is supplied from the GSM/GPS modem battery The low-power sensor is implemented in software by using the on-chip A/D converter Antenna Tamper is driven by the buzzer function of the modem, not the microcontroller

    8. Microcontroller Decision Table Initially, we chose the PIC18F2550 because it seemed to fit our needs at the time. However, we recently realized that we needed more pins than the PIC18F2550 had to offer. Thus we went with the 40-pin PIC18F4550.

    9. Informer Development The Informer was developed in the following steps: Circuit was designed and each block tested PCB layout was designed and checked Initial programming was tested using the Wiz-C compiler. Soldering was completed and PCB checked for expected operation. Programming of microcontroller is not yet successful, but is only in need of more time due to the complexity of the design.

    10. Informer Development Tools Wiz-C compiler from Forest Electronics to avoid assembly language USB code library to ease USB implementation USB development kit with driver included for communication class USB programmer for in-circuit programming and debugging

    11. Pin Diagram of PIC18F4550 As you can see, most pins are multiplexed with different functions. This requires careful planning of pin connections.

    12. Initial Pin Connections of the PIC18F4550

    13. Informer Code Flowchart

    14. TrackOn Mode Tasks

    15. TrackOff Mode Tasks

    16. GSM-GPS Specifications: 1 GSM-GPS module 1 combination Multi-band Antenna (for GSM and GPS) 1 SMS service plan from Cingular The frequency has to be 850 MHz or 1900 MHz bands RS232 serial link (ITU-T V.24) 1 SIM card and holder 1 rechargeable power battery with 3.7V AT commands to control GSM/GPS NMEA sentences that provide the time, latitude, longitude, and speed 50 Ohm antenna connector 50 pin Molex industrial connector

    17. Why did we pick the GM862-GPS? Quad band frequencies Integrated GPS receiver Low Power Consumption RS232 interface On board SIM card reader Small size GSM jamming detection Auto-bauding functionality from 2.4 up to 57.6 Kbps or a fixed baud rate up to 57.6 Kbps

    18. Plan: Use Cellular technology for communication link. Send SMS messages to cell phones.

    19. GSM Connectors Position: Following pins need to be connected.

    20. Turning on and off: To turn on or off, pin #17 has to be tied low for at least 1 second and then released.

    21. Check GSM device Functionality: Power is on, device is ready to receive AT commands on serial port. 3 things to check: Autobaudinig -Suggested setting: port speed = 38400 char format = 8 bit per char, no parity bit, 1 stop bit SIM presence checking Network checking

    22. Time out: Every AT command issued will have a period of time out given until the response come back. Error will occurs when there is no response until the time out is elapses. Time out period is different for each command.

    23. Indication of network availability: STAT-LED pin indicates the network service availability and call status.

    24. SMS handling: Before sending SMS messages, we have to do the SMS device set up first. It can be done by following the steps in the diagram. IRA character set is used in SMS text mode. SMS messages can be sent, store, delete, or receive with this device.

    25. SMS message can be sent without storing it. Following is an example of using AT commands to send a message directly without storing it.

    27. GPS Operation: The GPS receiver in GM862-GPS module is controlled by dedicated NMEA sentences via GPS serial port B.

    28. TYTD Software Approach Website Database HTML Tags & CGI Scripting. Google Map Implementation. Interface Software Patch & Data Report.

    29. SQL Database Tables All database tables are built using SQL language. Some major data tables are listed below: Comprehensive GPS Log Daily Snap Shot Daily Schedule for each driver Off-limits locations specified by parents Alert reports (today’s, this week’s, this month’s, last 2 or 3 month’s alert report) Settings, which includes alerts, login info, cell phone numbers, base GPS coordinates, and time zone Primary locations Teen data

    30. Two sample table are shown below: Comprehensive GPS Log for ID #01 Weekly Snap Shot for ID #01

    31. Some SQL codes to make the Informer table: I think you should put some text here to explain. (just an opinion)

    33. Google Map Application: Google map software provides a display screen of roads and high ways, which makes tracking visualized and more detailed. The user can view the current location of the driver on the map of their city by inserting the received coordinates (on their cell phone) (trackyourteendriver.com). The predefined php function ‘GClientGeocoder()’ retrieves from Google map website, the geographic latitude and longitude of any mailing address inserted on the website interface. (this feature is not enabled at this time) Each location specified by the user is going to be surrounded by 4 different GPS coordinates, each locating some distance away from the base coordinates. By clicking on the custom Icons specified for different type of locations, an info window opens up which displays the location’s specifications to the screen.

    34. Website Inventory: As soon as the user login to our website the following options would appear on the user’s home page: Current Location ? displays date,Time,driver Id,speed,alert Schedule ? Display/Modify schedules for all days of week Primary Locations ? a) List All b) Map All c) Edit/Update Off-Limit Locations ? a) List All b) Map All c) Edit/Update Teen Data ? a) Update Drivers b) View Alerts c) View Locations Upload Informer Settings ? a) Alerts (Aggressive driver/possible accident) b) Informer Password c) Cell Phone Numbers d) Base Coordinates (the user’s house) e) Time Zone Help ? a) FAQ’s b) Device Manual

    35. Primary and Off-limits Box Meters ? Degrees

    36. Latitude 0 - 90 degrees , min 0 - 60’ Longitude 0 - 180 degrees, min 0 - 60’ For instance: Small Buildings: Min Longitude = Base_Longitude - X Max longitude = Base_Longitude + X Min Latitude = Base_Latitude – X Max Latitude = Base_Latitude + X (when X = box_parameter / 2) X is specified by the parents in METERS on the website. CALCULATIOS: 1o Latitude = 111.2 km (Longitude 000o00’00”) Therefore, 100 meters = 00o00’03” in degrees Therefore, for a small building x = 00o00’03” 1o Longitude would have different values in meters as the latitude increases from 0 to 90 degrees. The same thing applies to the latitude. For instance: In a city which is located at (Latitude = 01o50’09”N , Longitude = 002o40’10”E) Therefore, 1o Longitude = 70.93 km therefore, 100 meters = 00o00’02” longitude (this value would vary traveling further north or south way from that city.)

    37. TYTD Software Interface: All the GPS data and informer settings are parsed to the user’s hard drive through a serial port terminal. This software would get ASCII data from the informer through Serial port connection and save them as .txt files on the parents’ computer hard driver. The data saved in the .txt file is in ‘tab delimited’ format, and lines are terminated by ‘;’. The following SQL command should automatically Import/Export ASCII data from/into the .txt files saved on the parents’ computer hard drive.

    38. The ASCII characters Imported/Exported form/into the Informer The ASCII text coming from NFO Device includes all the data stored inside the informer in 24 hrs. The most updated Schedule of the next day, informer settings, and the off-limits locations are uploaded to the NFO memory once the device is connected to the pc. The data coming from informer has the following data fields: - Date - Kid ID - Time - Latitude - Longitude - Speed - Alert

    39. Time Zone Conversions: The GPS module used for this project, which has NMEA data formatting, uses Universal Coordinate Time (Greenwich). The interfacing software provided for the user (TYTD software) would convert the UCT time to any local time coordinates in United States. The 6 different time zones existing in USA are listed and mapped on the following slide.

    40. Conclusion Next Steps: Pam: PCB certification Sanda: Use development kit to test GPS/GSM modem Shadi: Continue to create database and web interface Questions?? Please ask and/or give criticism … we need info!

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