BUS TRACKER - CDR

2012 Capstone Senior design Colorado University at BoulderInstructor: Tom.Brown Sam.Siewert

Team- Winning

Team member:

Bin Wang Erik WareDavid Zigman Emile Bahdi

Slides made by: Bin Wang

Project Progress

1. GPS module works and receives data using Arduino development board.

2. RF radio sends and receives data, acting like a 3000 foot serial cable.

3. Website can move data from main station hard drive to ECES sever, and upload to website in soft real-time.

4. PCB board is fully designed and ordering soon. Parts list is complete.

5. Finish a prototype design for the user station.

Erik

Block diagram

PCRX RF

Website

Solar Cell

u-controller

Wi-Fi

RS232

GPS

u-controller

TX RF

RS232

Internet

Tracker

Server

Terminal

9V Battery

Cell

WiFi RX

9V backu

p

Visual User Station

9V, 1 amp

Battery Cell

Power Circuit

Erik

GPS data from satellite

Data decoded by Atmel processor

Atmel processor transmits using serial port and RF radio

Update_file.sh SCP’s the data to the ECES server

Write_file.pl script polls the serial port and saves the data to a data.txt file

Data is received on the server through the RF radio

Index.html on the ECES server presents the data online

User station Wi-Fi module looks up data on ECES server and presents the data visually

Data Flow Chart for Full Project

eces.colorado.edu/~waree

Erik

eces.colorado.edu/~waree

Erik

Software Description

Write_file.pl (perl)

Input: Polls the serial port and saves GPS data received Output: data.txt file, this script also executes write_file.sh

GPS_software.c (C-code)

This is on the Atmel processor, Input GPS data received through the SPI connection to the GPS module. Outputs: sends data to the LCD screen and sends it through the RS-232 port to the RF radio.

Update_file.sh (Expect)

Input: data.txt file on computer HD; Output: The ECES server using SCP protocol.

Index.html (JavaScript/HTML/XML)Handles the website JavaScript and html code, Input: looks up GPS data on ECES server; Output: display data on embedded Google map.

User_station.c (C-code)

Input: Looks up the GPS data on the ECES server and decoding it on the user-station processor; Output: visually displaying the data.

Erik

Prototype of Tracking System

LCD

GPS

Uctrler

RS232

GSM

9VCellAT:40.00726204LT:-105.26203

Bin

Software Decomposition

UART/RFInput:TTLsignal of ATLTOutput:Uart signal in RS232

LCDGPS-decode

Bin

RF module

1. Signal attenuate Significantly across building.

2. Consistent high power consumption

Bin

Small range:

R = 0.6 km

Large range:

R = 1.4 km

Bin

GSM (Global System for Mobile Communications)

Cellular-ADH8066

Function:SMS text messagesGSM/GPRSTCP/IP

Cost:50$/each

ADVANTAGE:

1. “Infinite” working range

2. Guaranteed Communication Quality

3. Easy to control by u-ctrller than mobile phone itself.

DISADVANTAGE:

Mainance Fee.(<30$/month)

Bin

Power Design(tracker)

Part Name Typical Current(mA)

GPS 70 70

Microcontroller(Active 8Mhz)

4.19 4.19

GSM(ADH8066)

2.5 (max:1A)

RF(X-tend pkg) 85(max:2A)

Total 96.69 159.19

1.The power of GSM is 34 times lower than RF we used.

2.Reduce the power of the system by 40%

3.Sleep mode significant reduce the power consumption Bin

Functionality of the PCB Board To transmit the current location to the

receiver at the main station to be uploaded to the website

•Atmega8-16PC•Voltage Regulators (NCP-1117-D, LP2985-33DBVR)•Serial Port•RS-232 (chip)•Clock (CSTCE16MOV53-R016MHz )•LCD screen

Parts List

David

Microcontroller

PC6 (RESET) 1

PD0 (RXD)2

PD1 (TXD)3

PD2 (INT0)4

PD3 (INT1)5

PD4 (XCK/T0)6

VCC 7

GND 8

PB6 (XTAL1/TOSC1)9

PB7 (XTAL2/TOSC2)10

PD5 (T1)11

PD6 (AIN0)12

PD7 (AIN1)13

PB0 (ICP)14

PB1 (OC1A)15

PB2 (SS/OC1B)16

PB3 (MOSI/OC2)17

PB4 (MISO)18

PB5 (SCK)19

AVCC 20

AREF 21

GND 22

PC0 (ADC0) 23

PC1 (ADC1) 24

PC2 (ADC2) 25

PC3 (ADC3) 26

PC4 (ADC4/SDA) 27

PC5 (ADC5/SCL) 28

U3

ATmega8-16PC

123456

AD

Header 6

12345678

IOL

Header 8

12345678

POWER

Header 8

123456789

10

IOH

Header 10GND

GND

AD4/SDAAD4/SDA

AD5/SCLAD5/SCL

+5V

VCCAREF

GND100pFC6

GNDVIN

+3V3

100nF

C4

1M

R3

GND

XTAL2 2Gnd1

XTAL1 3U5

ARD8ARD9

ARD11ARD12

ARD13

ARD10

ARD8ARD9

ARD11ARD12ARD13

ARD10

ARD2ARD1

•The GPS module plugs directly into the PCB board and is controlled by the Atmega microcontroller.

David

Powering the PCB Board

9V battery plugs into the Power Jack Voltage regulators convert the 9V battery

input to 5V and 3.3V output Green LED shows power is on

David

Interface1

2

3

4

5

6

7

8

9

11

10

J1

D Connector 9GND

.1uFC7

11

22

33

44

55

66

77

88 9 910

101111

12 1213

131414

15 1516

16U7

RS-232

100pF

C8Cap Pol1

RS-232_pin2

GND

RS-232_pin1

100pF

C9Cap Pol1

100pF

C10Cap Pol1

100pF

C11Cap Pol1

RS-232_pin4

RS-232_pin5

RS-232_pin1RS-232_pin2RS-232_pin3RS-232_pin4RS-232_pin5RS-232_pin6RS-232_pin7RS-232_pin8 RS-232_pin9

RS-232_pin10RS-232_pin11RS-232_pin12RS-232_pin13

RS-232_pin16

RS-232_pin14RS-232_pin15

RS-232_pin3 RS-232_pin6

GNDRS-232_pin16

+3V3

GND

GND

RS-232_pin15

12345678910111213141516

LCD

Header 16

GND

VCC

ARD12

ARD5ARD4ARD3ARD2

•The LCD screen will display the coordinates of the current bus location

•The RS-232 boosts the signal to 10 V and outputs to the transmitter via the serial port

David

PCB Layout

David

Future Work on PCB Design

Thoroughly check the board layout before sending the layout to Advanced circuits

Order all the components from Digikey Solder and mount components Testing for Milestone 1

David

USER station

•Display Bus Location•Time till bus arrive to the station

User station components

10 W solar panel LED map Arduino uno 74238 3- 8 decoder LCD WIFI-2.21 RN-131C Rechargeable Battery

Emile

Solar Battery

Emile

User station

Emile

Schematic View

Emile

LED Screen

Emile

Labor Division

Bin Wang On-bus system and WiFi Wireless communication and

telephone application design.

David Zigman On-bus PCB board design.

CTO

COO

CEO

CFO

Erik Ware Website design and working

with David on PCB board and software.

Emile Bahdi User station development.

Milestone 1&2 Deliverables

Milestone 1

•PCB board is functional and receiving GPS data

•Website can port test data into Google maps to display position

•PCB board is connected to RF radio and can send data to receiver

•Prototype of Wooden user station

•User station can look up correct Wi-Fi data and 4x16 decoder is properly connected

Milestone 2

•Completion of prototype system tested in line of site applications

•Route testing completed with RF radio and GPS coordinates for user station LED’s assigned

•User station built

Schedule & Time Management

Picture Generated by Microsoft® Office Project 2007

Schedule and Milestones

Jan.18 – Feb.2: Get group organized purchase essential hardware, get started and implement project detail plan.

Feb.2 – Feb.28: Finish building a portable GPS device(Bin) Build the prototype of user station(Emile,Bin)

Construct a website with CSS(Erik)Feb.28 – Mar.20: Communicate between terminal and server by WiFi-1(Bin)

Design and build on-bus PCB(Dave,Erik)Design and build user-station(Emile,Bin)Update website with real-time data(Erik)

Track main-campus bus without covering William Village and update websiteMar.20 – Apr.10: Communicate between terminal and server by WiFi(Bin)

Finish building user-station update data by WiFi(Emile,Bin)Embed website with Google Maps(Erik)PCB Board is working properly(Erik, David)

Track whole bus route and update location to website and user-station.Apr.11 – Apr.30: Improve redesign and focus on user application and do commercial advertisement(Erik,David,Emile,Bin).Apri.30 – May2: Summarizing documents and prepare for expo.May3: Win (Team:Winning)

Finished

Undergoing

Budget:

Name Quantity

Price($)

20 Channel EM-406A SiRF III Receiver with Antenna

1 59.95

GPS Shield 1 14.95

Arduino Uno SMD 3 29.95*3

XTend® RF Modems 1 Watt/900 MHz stand-alone radio modems

1 300 (Free)

Basic 16x2 Character LCD - Black on Green 1 13.95

Solar Panel - 10W 1 59.95

WiFly GSX Breakout 1 84.95

Nucasa O1/2X4-S S4S .5-Inch by 4 Flat Stock Lumber Sample

2 33.75*2

Poster and Documentation 100

PCB board 150

Interface, cables and tools 100

other 50

Total:

1091.1$

(Note: some components can be obtained from Capstone Laboratory

Name Quantity

Price($)

20 Channel EM-406A SiRF III Receiver with Antenna

1 59.95

GPS Shield 1 14.95

Arduino Uno SMD 3 29.95*3

XTend® RF Modems 1 Watt/900 MHz stand-alone radio modems

1 300 (Free)

Basic 16x2 Character LCD - Black on Green 1 13.95

Solar Panel - 10W 1 59.95

WiFly GSX Breakout 1 84.95

Nucasa O1/2X4-S S4S .5-Inch by 4 Flat Stock Lumber Sample

2 33.75*2

Poster and Documentation 100

PCB board 150

Interface, cables and tools 100

other 50

Name Quantity

Price($)

20 Channel EM-406A SiRF III Receiver with Antenna

1 59.95

GPS Shield 1 14.95

Arduino Uno SMD 3 29.95*3

XTend® RF Modems 1 Watt/900 MHz stand-alone radio modems

1 300 (Free)

ADH8066 Evaluation BoardADH8066 BreakoutADH8066 GSM module

1 56.03$19.95$49.95

Godaddy Domain Server 1 26.14

Solar Panel - 10W 1 59.95

WiFly GSX Breakout 1 84.95

Nucasa O1/2X4-S S4S .5-Inch by 4 Flat Stock Lumber Sample

2 33.75*2

Poster and Documentation 100

PCB board 150

Interface, cables and tools 100

other 50

Remaining Fund:631.2$

Question and Discussion

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Presented by: Winning