Fyp2 - Week 14

Fyp2 - Week 13

Make some changed to the project. Added a switch at the receiver unit of the intercom.

Switch at the receiver unit

Fyp2 - Week 12

Testing the project. Try to get clear image for wireless camera at BMI area.

Fyp2 - Week 11

 Project finally complete. 

Intercom integrated with Camera & Monitor

Image that send from the wireless camera 

Fyp2 - Week 10

Start making FYP report.

Fyp2 - Week 9

PIC MICROCONTROLER

A microcontroller is a single integrated circuit (IC) which is small enough but containing all the integrated circuits such as CPU, EPROM program memory, RAM memory and an Input/Output interfaces.

All of these functions are included within one single package, making them cost effective and easy to use.

PIC Microcontroller is a programmable microcontroller ICs manufactured by MICROCHIP

Programming language:

High Level language:

• C language,C++
• Basic, QBasic

Low Level Language:

• Assembly

Fyp2 - Week 8

RF Transmitter (315MHz)

- Capable transmit signal up to 100 meters range   around the open area

- Wide input supply (2.5-12V)

- Small dimension

- ASK Modulation

This low cost RF transmitter can be used to transmit signal up to 100 meters (the antenna design, working environment and supply voltage will seriously impact

the effective distance). It is good for short distance, battery power device development.

It has benefits of:

• Wide input supply (2.5V-12V)

• Easy to integrate (Data, Vcc and GND)

• Device in deep sleep mode when Data pin is grounded

• Very small dimension

RF Receiver (315MHz)

- Super regeneration design ensures sensitive to weak signal

- Low power consumption (4mA)

- Small dimension

This low cost RF Receiver can be used to receive RF signal from any 315MHz transmitter. Super regeneration design ensure sensitive to weak signal.

It has benefits of:

• Low power consumption (4mA)

• Easy to integrate (Vcc, GND and Data)

• Super regeneration design

• Very small dimension

Fyp2 - Week 7

RELAY DRIVER

• C547 transistor used as a switch for controlling the operation of the relay
• If there is voltage at the transistor base> 0.7V the transistor will be in the "ON"
• Current flows from the resistor, transistor base to ground.
• 12V current flow from the source to the collectors of transistors and thus to ground will cause the resulting magnetic field at which the relay coil's magnetic field will attract the "contact relay" from the "Normally close (NC @ OFF) to position" Normally open "(NO @ ON).
• If the voltage at the transistor base <0.7V the transistor will be in the off state. There is no current flow from the collectors of transistors to ground causes the relay Normally positioned close @ off

Fyp2 - Week 6

Buy components for the control box.

Fyp2 - week 5

Looking for an appropriate wireless camera and monitor

Fyp2 - Week 4

Intercom project will be used for residential as flats, apartments and other then the relay has been used in the main circuit.

Due to few problem I has made new block diagram for this project.

This is the new block diagram

Fyp2 - Week 3

I finally managed to design right shcematic diagram for this project. Alhamdulillah..

Fyp2 - Week 2

Try using this shcematic for my FYP but were unsuccessful because ADV7080 video decoder are not found in sofware that I use

Fyp2 -Week 1

This is my first week for fyp 2..I have consulted with Mr Abdul Halim Abd Rahman  ( my supervisor) during semester breaks to talk about my FYP.
Fyp briefing on 30 july.

Week 16-17

Exam week (7may - 18may)

Week 15

Revision week..

Week 12

Meeting my supervisor to show my presentation slide. Make presentation on Thursday (12 april 2012).

Week 11

Do slide show for presentation next week.

Week 10

Block Diagram

Week 9

Research for component price:

Bil	Costing	Amount(RM)
1	Monitor	250
2	Camera	50
3	Intercom Model	200
4	Transmitter & Receiver circuit	200
5	Interface Divice	100
6	Petrol	100
	Total	800

*This my budget

Week 8

This week collected data for presentation on week 12.Make proper work plan and edit few data from proposal.

Work Plan

Week 7.1 : What is Intercom?

Intercom is (intercommunication device), talkback or doorphone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network. Intercoms are generally mounted permanently in buildings and vehicles. Intercoms can incorporate connections to public address loudspeaker systems, walkie talkie, telephones and to other intercom systems. Some intercom systems incorporate control of devices such as signal lights and door latches.

Week 6.3 : FYP

Here some circuit/diagram that i have found. *just for reference*

Intercom circuit diagram

Wireless Headphone