01-06-2013, 03:53 PM
Digital Home Security
[attachment=54639]
Introduction of the project:
The digital home security system monitors room temperature, smoke, motion and windows and doors. The aim of the project is to build an integrated home security system. there is also an incorporated temperature sensor, smokedetectors, and motion sensor besides magnetic switch equipped on doors and windows. Therefore the security system sounds an alert if break in attempt or possible smoke or fire occurs.
So when you want the best protection, you definitely want to go with a authentication system. Just remember to do some research and learn all you can about these systems before you decide which one to use. That way you will know that you are getting the best protection right from the start.
Is access system of authentication secured one? They have their advantages and disadvantages. What it truly boils down to is your personal preference. But there are some distinguishing features between the two that can help you decipher.
Not only the access systems we can have the different type of the sensor for the house security. The home security is monitored by the temperature sensor and the light senor.
If you are just building a house and want to have a legitimate security system, installing a hard-wired security system is perfect. The reason for this is because the structural frame is still exposed giving you an easy accessibility.
We have sensor connected to the door of our house which prompts us for password when we are near to it. This unique password is known only to us, the owners of the house. The door will be opened only if we enter the right password. Entering a wrong password thrice activates the buzzer which starts making beep noise continuously.
The project explained here is an excellent tool to ensure full-proof security for homes/offices. The main requisite here is that the different circuit components should match the requirements. This project requires a power supply of 5V which can be obtained through a transformer connected to main supply. The micro controller used her is AT89S52 micro controller as it has in built ISP for programming.
This security system is fully digital and customized and incorporated a 16x2 LCD display with a keypad. The security system is basic and offers simple password lock to enhance our security system with different types of sensors.
The IR motion sensor is quite inexpensive and there is a smoke detector from home that sounds the alarm if the smoke is detected .the 16x2 LCD has standard 16 pin connection and the keypad is standardized that has a 8 pin connector. The smoke detector is powered by standard E block 9V battery. And a DC motor plays a vital and crucial role.
In our project we enter the password and if the password is correct the doors opens. Thus only authorized persons are allowed to open the door through their repetitive password. If any un authorized persons tries to open the door with wrong password the door doesn’t opens and if he reenter the password more than 3 times wrongly, at the 4th time a buzzer will alarmed continuously. Thusan unauthorized person is prevented in entering through the authorized system.
Schematic explanation:
In this project we are controlling three industrial devices. To control the devices we are using 8051microcontroller which is 40-pin controller, Power supply, LCD, Light dependent resistor Temperature Sensor, ADC and a relay.
The microcontroller is 40-pin DIP has divided into four 8-bit ports (P0, P1, P2 and P3), remaining are: reset (pin-9)-is connected to +5v power supply through reset switch, a capacitor and a resistor. Pin-18(XTAL2) and pin-19(XTAL1) are connected to a crystal circuit. The +5v is connected to 40th pin and 20th pin is connected to GND of the controller. Pin-31of microcontroller is connected +5v V cc. Port3 pins has different functionality for each, we can use them for special purpose.
Liquid Crystal Display (LCD) has 16 pins. Pin 1 is for power supply, pin2 for GND and pin3 for contrast. Pin4, 5, 6 are the control pins are connected to port1.4, port1.5 and port1.6 respectively. Generally micro-controller consists of data pins but here we are use only four bits for the LCD working. These port 1 pins (p1.0, p1.1, p1.2, p1.3) are connected to the LCD data pins (10, 9, 8, and 7).in port 1 (p1.6, p.7) are connected to the relay.
Here in ADC IC we have 20pins.1, 2 pin are connected to the ground, 3, 5 are connected to the switch here, pin 6 is connected temperature sensor (LM35).here for has three pins 1-vcc, 2-o/p, 3 ground. Pins 7, 8, 10 are connected to ground. Pins 11, 12,13,14,15,16,17,18 are connected to the data pins (p3.0-p3.7).19 pin is connected to the resistor.
[attachment=54639]
Introduction of the project:
The digital home security system monitors room temperature, smoke, motion and windows and doors. The aim of the project is to build an integrated home security system. there is also an incorporated temperature sensor, smokedetectors, and motion sensor besides magnetic switch equipped on doors and windows. Therefore the security system sounds an alert if break in attempt or possible smoke or fire occurs.
So when you want the best protection, you definitely want to go with a authentication system. Just remember to do some research and learn all you can about these systems before you decide which one to use. That way you will know that you are getting the best protection right from the start.
Is access system of authentication secured one? They have their advantages and disadvantages. What it truly boils down to is your personal preference. But there are some distinguishing features between the two that can help you decipher.
Not only the access systems we can have the different type of the sensor for the house security. The home security is monitored by the temperature sensor and the light senor.
If you are just building a house and want to have a legitimate security system, installing a hard-wired security system is perfect. The reason for this is because the structural frame is still exposed giving you an easy accessibility.
We have sensor connected to the door of our house which prompts us for password when we are near to it. This unique password is known only to us, the owners of the house. The door will be opened only if we enter the right password. Entering a wrong password thrice activates the buzzer which starts making beep noise continuously.
The project explained here is an excellent tool to ensure full-proof security for homes/offices. The main requisite here is that the different circuit components should match the requirements. This project requires a power supply of 5V which can be obtained through a transformer connected to main supply. The micro controller used her is AT89S52 micro controller as it has in built ISP for programming.
This security system is fully digital and customized and incorporated a 16x2 LCD display with a keypad. The security system is basic and offers simple password lock to enhance our security system with different types of sensors.
The IR motion sensor is quite inexpensive and there is a smoke detector from home that sounds the alarm if the smoke is detected .the 16x2 LCD has standard 16 pin connection and the keypad is standardized that has a 8 pin connector. The smoke detector is powered by standard E block 9V battery. And a DC motor plays a vital and crucial role.
In our project we enter the password and if the password is correct the doors opens. Thus only authorized persons are allowed to open the door through their repetitive password. If any un authorized persons tries to open the door with wrong password the door doesn’t opens and if he reenter the password more than 3 times wrongly, at the 4th time a buzzer will alarmed continuously. Thusan unauthorized person is prevented in entering through the authorized system.
Schematic explanation:
In this project we are controlling three industrial devices. To control the devices we are using 8051microcontroller which is 40-pin controller, Power supply, LCD, Light dependent resistor Temperature Sensor, ADC and a relay.
The microcontroller is 40-pin DIP has divided into four 8-bit ports (P0, P1, P2 and P3), remaining are: reset (pin-9)-is connected to +5v power supply through reset switch, a capacitor and a resistor. Pin-18(XTAL2) and pin-19(XTAL1) are connected to a crystal circuit. The +5v is connected to 40th pin and 20th pin is connected to GND of the controller. Pin-31of microcontroller is connected +5v V cc. Port3 pins has different functionality for each, we can use them for special purpose.
Liquid Crystal Display (LCD) has 16 pins. Pin 1 is for power supply, pin2 for GND and pin3 for contrast. Pin4, 5, 6 are the control pins are connected to port1.4, port1.5 and port1.6 respectively. Generally micro-controller consists of data pins but here we are use only four bits for the LCD working. These port 1 pins (p1.0, p1.1, p1.2, p1.3) are connected to the LCD data pins (10, 9, 8, and 7).in port 1 (p1.6, p.7) are connected to the relay.
Here in ADC IC we have 20pins.1, 2 pin are connected to the ground, 3, 5 are connected to the switch here, pin 6 is connected temperature sensor (LM35).here for has three pins 1-vcc, 2-o/p, 3 ground. Pins 7, 8, 10 are connected to ground. Pins 11, 12,13,14,15,16,17,18 are connected to the data pins (p3.0-p3.7).19 pin is connected to the resistor.