Smart TV Project
https://elec490.jonmash.ca/
2026-04-28T12:34:11+00:00Smart TV Project
https://elec490.jonmash.ca/
https://elec490.jonmash.ca/lib/exe/fetch.php?media=wiki:dokuwiki.svgtext/html2009-03-04T23:12:21+00:00Anonymous (anonymous@undisclosed.example.com)about_us
https://elec490.jonmash.ca/doku.php?id=about_us&rev=1236208341&do=diff
Design Team
* Jonathan Mash
* Liliane Barbour
* Mike Studli
Project Supervisor
* Dr. Hashtrudi-Zaad
Contact Information
Department of Electrical & Computer Engineering
Queen's University
Walter Light Hall
Kingston, Ontario
Canada K7L 3N6
Tel: (613) 533-6000
Fax: (613) 533-6615text/html2009-01-20T15:49:09+00:00Anonymous (anonymous@undisclosed.example.com)blueprint
https://elec490.jonmash.ca/doku.php?id=blueprint&rev=1232466549&do=diff
Submission Information
Date: Wednesday, January 14, 2009.
Submitted By: Group 8
* Liliane Barbour
* Jonathan Mash
* Michael Studli
Faculty Supervisor:
* Dr. Hashtrudi-Zaad
* Department of Electrical and Computer Engineering
Downloadtext/html2009-03-08T18:22:11+00:00Anonymous (anonymous@undisclosed.example.com)code_to_send_desired_position_to_the_motor_controller
https://elec490.jonmash.ca/doku.php?id=code_to_send_desired_position_to_the_motor_controller&rev=1236536531&do=diff
void setup()
{
pinMode(3, OUTPUT); // sets the digital pin as output
}
void loop()
{
pulseMicroseconds(3, 1500); //1.5 mS
delay(100);
}
/* pulseMicroseconds(int, int);
*
* 1.0 mS = 1000 uS --> 0 degrees
* 1.5 mS = 1500 uS --> 90 degrees
* 2.0 mS = 2000 uS --> 180 degrees
*
* For some, unknown, reason the Servo library did not produce a pulse
* that was compatible with the motor controller. This work-around was
* required to produce the desired results.
*/
void pulseM…text/html2009-01-20T04:54:27+00:00Anonymous (anonymous@undisclosed.example.com)expected_problems
https://elec490.jonmash.ca/doku.php?id=expected_problems&rev=1232427267&do=diff
EXPECTED PROBLEMS
SENSOR SENSITIVITY AND CALIBRATION
The team is currently using five PIR sensors to detect and track the presence of humans in a room. Initial testing has indicated that these sensors are highly dependent of the proximity of the human to the sensors. It was found that the sensors, including the amplification circuits, would saturate and become unstable if a person walked to close to the sensor apparatus.text/html2011-02-25T19:21:07+00:00Anonymous (anonymous@undisclosed.example.com)footer
https://elec490.jonmash.ca/doku.php?id=footer&rev=1298661667&do=diff
Brought to you by: Liliane Barbour, Jonathan Mash and Mike Studli
<html><br></html>With the support of: Dr. Hashtrudi-Zaad
<html><br></html>
<html><br></html>
<html>
<script type=“text/javascript”><!--
google_ad_client = “pub-9209348786221882text/html2009-03-04T05:32:36+00:00Anonymous (anonymous@undisclosed.example.com)fourpir
https://elec490.jonmash.ca/doku.php?id=fourpir&rev=1236144756&do=diff
/********************************************************
* Code to relay the data from four PIR sensors to the PC
* using a simple low-pass filter (weighted average).
* By: Jonathan Mash
* Date: Feb. 2009
*********************************************************/
#define PIR_HIST 5
int PIR_idx;
int PIR[4][PIR_HIST];
void setup()
{
Serial.begin(9600);
PIR_idx = 0;
}
void loop()
{
Record();
Serial.println(PIR[0][PIR_idx]);
Serial.println(PIR[1][PIR_idx]);
Serial.println(PI…text/html2009-02-28T06:15:21+00:00Anonymous (anonymous@undisclosed.example.com)gallery-pir
https://elec490.jonmash.ca/doku.php?id=gallery-pir&rev=1235801721&do=diff
PIR Amplifier Board Amplifier Prototype PCB Rev. 2 Populated PCB Rev. 2 Populated Board on stand Board on stand angle viewtext/html2017-04-05T04:52:16+00:00Anonymous (anonymous@undisclosed.example.com)home
https://elec490.jonmash.ca/doku.php?id=home&rev=1491367936&do=diff
Project Description
Modern television sets, although technologically advanced in picture and sound, are generally stationary. If the viewer wishes to watch the television while moving around a room, the television must be manually rotated to face the viewer. Similarly, in an operating room a surgeon must be able to move freely around the room but must also be constantly in view of any monitors. A system that allows the monitor to follow the surgeon would be beneficial. The project would also h…text/html2009-03-04T05:34:49+00:00Anonymous (anonymous@undisclosed.example.com)human_detection_sensor_system
https://elec490.jonmash.ca/doku.php?id=human_detection_sensor_system&rev=1236144889&do=diff
Human Detection Sensor System
The human detection sensor system consists of a variety of sensors oriented in such a way that they can be used to detect and track the presence of humans. In our current design, there are three types of sensors: PIR Motion Detectors, Infrared Thermometer Arrays, and an ultrasonic range finder.text/html2009-04-08T22:17:22+00:00Anonymous (anonymous@undisclosed.example.com)intelligence_algorithm
https://elec490.jonmash.ca/doku.php?id=intelligence_algorithm&rev=1239229042&do=diff
Software Development
* Analysing Inputted Data Using MATLAB
* Reading Inputted Data from Four PIR Sensors and the Webcam
* Replaying Data Stored Above
* See Tracking-Software for information on how the data is relayed to MATLAB.
* Basic Human Tracking
* Following single person using only TPA81 Thermopile Array
* Intelligence Algorithm Development
* V1
* V2
* V3
* V4
* User Override Modetext/html2009-04-08T22:24:33+00:00Anonymous (anonymous@undisclosed.example.com)irdecode
https://elec490.jonmash.ca/doku.php?id=irdecode&rev=1239229473&do=diff
/********************************************************
* Code to access the raw data coming from the IR receiver
* and display it on the screen. I used this code to generate
* the code that sends commands to the tv.
* By: Jonathan Mash
* Date: Feb. 2009
* Based on work by: Walter Anderson (wandrson@walteranderson.us)
*********************************************************/
#include <avr/interrupt.h>
#include <avr/io.h>
#define TIMER_RESET TCNT1 = 0
#define SAMPLE_SIZE 150
#define…text/html2009-03-04T05:20:35+00:00Anonymous (anonymous@undisclosed.example.com)main_control_board
https://elec490.jonmash.ca/doku.php?id=main_control_board&rev=1236144035&do=diff
Main Control Board
[Arduino Main Control Board]
The Arduino micrcontroller package was chosen as the main control board for this project. The Arduino was chosen for the following reasons:
* Inexpensive - Arduino boards are relatively inexpensive compared to other microcontroller platforms.text/html2009-01-15T01:26:18+00:00Anonymous (anonymous@undisclosed.example.com)navigation
https://elec490.jonmash.ca/doku.php?id=navigation&rev=1231982778&do=diff
* Home
* About Us
* The Project
* Photos
* Linkstext/html2009-03-04T05:33:09+00:00Anonymous (anonymous@undisclosed.example.com)onepir
https://elec490.jonmash.ca/doku.php?id=onepir&rev=1236144789&do=diff
/********************************************************
* Code to relay the data from one PIR sensor to the PC
* using a simple low-pass filter (weighted average).
* By: Jonathan Mash
* Date: Feb. 2009
*********************************************************/
#define PIR_HIST 5
int PIR_idx;
int PIR_one[PIR_HIST];
void setup()
{
Serial.begin(9600);
PIR_idx = 0;
}
void loop()
{
Record();
Serial.println(PIR_one[PIR_idx]);
PIR_idx++;
if(PIR_idx == PIR_HIST)
PIR_idx…text/html2009-03-04T04:52:54+00:00Anonymous (anonymous@undisclosed.example.com)photos
https://elec490.jonmash.ca/doku.php?id=photos&rev=1236142374&do=diff
Photo Galleries Gallery-PIR PIR Amplifier Board Arduino IR Sensor PING ))) Sensor SRF10 Range Findertext/html2009-03-08T18:22:05+00:00Anonymous (anonymous@undisclosed.example.com)pic_controlled_stepper_motor
https://elec490.jonmash.ca/doku.php?id=pic_controlled_stepper_motor&rev=1236536525&do=diff
PIC Controlled Stepper motor
* Code to send desired position to the motor controllertext/html2009-03-17T17:50:45+00:00Anonymous (anonymous@undisclosed.example.com)proposal_errata
https://elec490.jonmash.ca/doku.php?id=proposal_errata&rev=1237312245&do=diff
Proposal Errata
On page 6 of the document, the Testing and Evaluation section currently reads:
The team will develop a series of cases to evaluate their design. The cases should consider:
* Stationary and moving viewers
* Single and multiple viewerstext/html2008-10-27T20:21:16+00:00Anonymous (anonymous@undisclosed.example.com)proposal
https://elec490.jonmash.ca/doku.php?id=proposal&rev=1225138876&do=diff
Submission Information
Date: Thursday, October 23, 2008.
Submitted By: Group 8
* Liliane Barbour
* Jonathan Mash
* Michael Studli
Faculty Supervisor:
* Dr. Hashtrudi-Zaad
* Department of Electrical and Computer Engineering
Downloadtext/html2009-03-03T03:53:37+00:00Anonymous (anonymous@undisclosed.example.com)reading_inputted_data_from_four_pir_sensors_and_the_webcam
https://elec490.jonmash.ca/doku.php?id=reading_inputted_data_from_four_pir_sensors_and_the_webcam&rev=1236052417&do=diff
MATLAB Code
%Basic Comm
s = serial('COM8');
set(s,'BaudRate',9600);
set(s,'DataBits',8);
set(s,'StopBits',1);
fopen(s);
fprintf(s,'*IDN?')
vid = videoinput('winvideo',1,'RGB24_320x240');
preview(vid);
figure
hold on
data = [];
pirOneStore =[];
pirTwoStore = [];
pirThreeStore = [];
pirFourStore = [];
increment = [];
for p = 1:1
hold on
startlist = [];
pirOne =[];
pirTwo =[];
pirThree =[];
pirFour =[];
axis([0 100 0 50])
for i = 1:100
startlist = [st…text/html2009-01-24T19:09:38+00:00Anonymous (anonymous@undisclosed.example.com)references
https://elec490.jonmash.ca/doku.php?id=references&rev=1232824178&do=diff
REFERENCES
ELECTRONICS
Parts
* <http://www.rohm.com/index.html>
Circuits
* <http://www.pyroelectro.com/projects/vga_test_box/conclusion.html>
* <http://www.pyroelectro.com/tutorials/l298_stepper/software.html>
* <http://robots.freehostia.com/Circuits/CircuitsMain.html>
Stepper Motor
* <http://www.pyroelectro.com/tutorials/stepper_motor/index.html>
* <http://home.cogeco.ca/~rpaisley4/Stepper.html>
* <http://www.cs.uiowa.edu/~jones/step/>
Package Reference
* <http://www.st…text/html2009-03-03T03:54:13+00:00Anonymous (anonymous@undisclosed.example.com)replaying_data_stored_above
https://elec490.jonmash.ca/doku.php?id=replaying_data_stored_above&rev=1236052453&do=diff
figure
hold on
j = 1;
q=0;
for p = 1:1
hold on
startlist = [];
pirOne =[];
pirTwo =[];
pirThree =[];
pirFour =[];
for i = 1:100
startlist = [startlist i];
tic;
pirOne =[pirOne pirOneStore((p-1)*100+i)];
subplot(7,1,1);
axis([0 100 0 50])
plot(startlist, pirOne)
axis([0 100 0 50])
set(gca,'xtick',[],'ytickMode','auto')
pirTwo =[pirTwo pirTwoStore((p-1)*100+i)];
subplot(7,1,2);
…text/html2008-10-21T15:18:00+00:00Anonymous (anonymous@undisclosed.example.com)report
https://elec490.jonmash.ca/doku.php?id=report&rev=1224602280&do=diff
The final report has not been completed. Check back in April 2009.
--Jontext/html2009-03-25T03:21:20+00:00Anonymous (anonymous@undisclosed.example.com)test_video
https://elec490.jonmash.ca/doku.php?id=test_video&rev=1237951280&do=diff
<html><script src=“<http://elec490.jonmash.ca/flowplayer/flowplayer-3.0.6.min.js>”></script>
<a
href="http://elec490.jonmash.ca/flowplayer/followviewer.flv"
style="display:block;width:320px;height:240px;"
id="player">
</a>
<script language=“JavaScript”>
flowplayer("player", "http://elec490.jonmash.ca/flowplayer/flowplayer-3.0.7.swf", {clip: {autoPlay: false, autoBuffering: true}});text/html2009-03-25T03:24:22+00:00Anonymous (anonymous@undisclosed.example.com)the_project
https://elec490.jonmash.ca/doku.php?id=the_project&rev=1237951462&do=diff
The Project
Modern television sets, although technologically advanced in picture and sound, are generally stationary. If the viewer wishes to watch the television while moving around a room, the television must be manually rotated to face the viewer. Similarly, in an operating room a surgeon must be able to move freely around the room but must also be constantly in view of any monitors. A system that allows the monitor to follow the surgeon would be beneficial. The project would also have appl…text/html2009-03-05T01:57:38+00:00Anonymous (anonymous@undisclosed.example.com)thermofollow
https://elec490.jonmash.ca/doku.php?id=thermofollow&rev=1236218258&do=diff
/********************************************************
* Code to use the thermopile array to track the hottest
* object in a room. The thermopile array must be attached
* to a servo.
* By: Jonathan Mash
* Date: Feb. 2009
*********************************************************/
#include <Wire.h>
#include <Servo.h>
bool DEBUG = true; //Degug flag
Servo myservo;
int pos = 90; // variable to store the servo position
byte sensor_address = 0xd0;
byte heat[9];
void setup()
{
my…text/html2009-03-04T05:35:45+00:00Anonymous (anonymous@undisclosed.example.com)tpa81read
https://elec490.jonmash.ca/doku.php?id=tpa81read&rev=1236144945&do=diff
/********************************************************
* Code to access the raw data coming from teh I2C thermo
* pile array and dispay it on the console.
* By: Jonathan Mash
* Date: Feb. 2009
*********************************************************/
#include <Wire.h>
byte sensor_address = 0xd0;
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
Serial.begin(9600); // start serial for output
Serial.print("Starting TPA81 bus\n");
}
void loop()
{
…text/html2009-04-08T22:16:33+00:00Anonymous (anonymous@undisclosed.example.com)user-override
https://elec490.jonmash.ca/doku.php?id=user-override&rev=1239228993&do=diff
/********************************************************
* Code to use the IR remote control to rotate the TV
* By: Jonathan Mash
* Date: Mar. 2009
*********************************************************/
#define TIMER_RESET TCNT1 = 0
#define SAMPLE_SIZE 38
#define DEBUG 0
#define led_pin 4
#define IRpin 2
#define OUTPIN 12 //Pulse out to Motor Controller Default 12
#define SETUPPIN 13 //Pin to hold Motor at 90
unsigned int …text/html2009-03-22T00:57:23+00:00Anonymous (anonymous@undisclosed.example.com)v1
https://elec490.jonmash.ca/doku.php?id=v1&rev=1237683443&do=diff
#include <Wire.h>
#include <Servo.h>
#define PIR_HIST 4
#define DEBUG 0
Servo turret;
Servo outServo;
byte sensor_address = 0xd0;
int test=0;
int PIR[4];
int test2=1;
void setup()
{
turret.attach(9); // attaches the servo on pin 9 to the servo object
turret.write(90);
outServo.attach(10);
outServo.write(90);
Wire.begin();
Serial.begin(9600);
PIR[0] = analogRead(0);
PIR[1] = analogRead(1);
PIR[2] = analogRead(2);
PIR[3] = analogRead(3);
delay(1000);
}
void loo…text/html2009-03-22T00:56:27+00:00Anonymous (anonymous@undisclosed.example.com)v2
https://elec490.jonmash.ca/doku.php?id=v2&rev=1237683387&do=diff
#include <Wire.h>
#include <Servo.h>
#define DEBUG 0
#define LOWERLIMIT 400
#define UPPERLIMIT 650
#define COUNTLIMIT 20
Servo turret;
Servo outServo;
byte sensor_address = 0xd0;
int PIRREAD[4][5];
int PIR[4];
byte index = 0;
byte currentState = 4;
byte currentServo = 90;
void setup()
{
turret.attach(9); // attaches the servo on pin 9 to the servo object
turret.write(90);
outServo.attach(10);
outServo.write(90);
Wire.begin();
Serial.begin(9600);
for(int i=0; i<6; i++) …text/html2009-04-01T01:32:47+00:00Anonymous (anonymous@undisclosed.example.com)v3
https://elec490.jonmash.ca/doku.php?id=v3&rev=1238549567&do=diff
#include <Wire.h>
#include <Servo.h>
#define DEBUG 0
#define LOWERLIMIT 400
#define UPPERLIMIT 650
#define COUNTLIMIT 2
#define OUTPIN 12
#define SETUPPIN 13
Servo turret;
//Servo outServo;
byte sensor_address = 0xd0;
int PIRREAD[4][5];
int PIR[4];
byte index = 0;
byte currentState = 4;
byte currentServo = 90;
void setup()
{
turret.attach(9); // attaches the servo on pin 9 to the servo object
turret.write(90);
// outServo.attach(10);
// outServo.write(90);
Wire.begin();
Seria…text/html2009-04-08T22:19:26+00:00Anonymous (anonymous@undisclosed.example.com)v4
https://elec490.jonmash.ca/doku.php?id=v4&rev=1239229166&do=diff
/********************************************************
* Main intelligence algorithm. Includes IR reception.
* By: Liliane Barbour and Jonathan Mash
* Date: Apr. 2009
*********************************************************/
#include <Wire.h>
#include <Servo.h>
#define DEBUG 0
#define LOWERLIMIT 400
#define UPPERLIMIT 650
#define COUNTLIMIT 2
#define OUTPIN 12 //Pulse out to Motor Controller
#define SETUPPIN 13 //Pin to hold…text/html2009-03-04T05:37:02+00:00Anonymous (anonymous@undisclosed.example.com)volume_control
https://elec490.jonmash.ca/doku.php?id=volume_control&rev=1236145022&do=diff
Testing the Existing Volume Control Circuit
[IR Sensor]
The transmitter to the TV uses a circuit that incorporates a 555 timer chip. The signal from the microcontroller is sent to the 555 timer reset input. This controls the output of a 40 kHz signal to an infrared LED. It was found that the existing timer outputs a signal with a frequency of 27kHz