Intelligent fire detector with automatic alarm & air blower
- 1. INTELLIGENT FIRE DETECTOR WITH AUTOMATIC AIR BLOWER & ALARM TO AVOID FIRE ACCIDENTS Domain :Embedded Systems Soujanya
- 2. • The embedded system is a combination of computer hardware, software additional electrical & mechanical parts
- 3. Embedded System General Block Diagram Sensor conditioning Output interfaces sensor actuator Microcontroller sensor (uC) indicator sensor
- 4. INTELLIGENT FIRE DETECTOR WITH AUTOMATIC AIR BLOWER & ALARM TO AVOID FIRE ACCIDENTS
- 5. HARDWARE COMPONENTS: • MICROCONTROLLER. • FIRE SENSOR • BUZZER • POWER SUPPLY • BC547 TRANSISTOR • FAN
- 6. BLOCK DIAGRAM POWER BC547 BUZZER SUPPLY 8051 Microcontroller FIRE FAN SENSOR
- 7. POWER SUPPLY
- 8. FIRE SENSOR
- 9. FAN CIRCUIT Vcc AT89S52 P1.0 FAN GROUND
- 10. BUZZER CIRCUIT Vcc AT89S52 P1.0 BUZZER GROUND
- 11. Transistor: Transistor is used to amplify electronic signals. • A transistor is a device which acts as a switch which is used to turn on/off fan. • In this circuit, base terminal of the transistor is given to the P2^0 of the microcontroller.
- 13. Microcontroller: A highly integrated chip that consists all the components comprising a controller. Typically, this includes a CPU, RAM, ROM, I/O ports and timers. The main task of a micro-controller is to control a particular system.
- 14. 8051 P1.0 P1.1 1 2 40 39 Vcc P0.0(AD0 Foot Print P1.2 P1.3 3 4 38 37 ) 0.1(AD1) P P0.2(AD2 P1.4 5 36 ) P0.3(AD3) P1.5 6 35 P0.4(AD4) P1.6 7 34 P0.5(AD5) P1.7 8 8051 33 P0.6(AD6) RST 9 32 P0.7(AD7) (RXD)P3.0 10 31 EA/VPP (TXD)P3.1 11 30 ALE/PROG (INT0)P3.2 12 29 PSEN (INT1)P3.3 13 28 P2.7(A15) (T0)P3.4 14 27 P2.6(A14 (T1)P3.5 15 26 ) P2.5(A13 (WR)P3.6 16 25 ) P2.4(A12 (RD)P3.7 17 24 ) P2.3(A11 XTAL2 18 23 ) P2.2(A10) XTAL1 19 22 P2.1(A9) GND 20 21 P2.0(A8)
- 15. 15 LCD Display: LCD – Liquid Crystal Display Lower power than LED display More flexible in size and shape Slower response time
- 16. Pin No. Name Description 1 VSS Power supply (GND) 2 VCC Power supply (+5V) 3 VEE Contrast adjust 0=Instruction input 4 RS 1 = Data input 0=Write to LCD module 5 R/W 1 = Read from LCD module 6 EN Enable signal 7 D0 Data bus line 0 (LSB) 8 D1 Data bus line 1 9 D2 Data bus line 2 10 D3 Data bus line 3 11 D4 Data bus line 4 12 D5 Data bus line 5 13 D6 Data bus line 6 14 D7 Data bus line 7 (MSB) 15 LED+ Back Light VCC 16 LED- Back Light GND
- 17. LCD commands: • 0x01 – clear LCD data screen • 0x02 – return to home • 0x04 – decrement cursor (shift left) • 0x06 – increment cursor (shift right) • 0x05 – shift display right • 0x07 – shift display left • 0x08 – display off, cursor off • 0x0A – display off, cursor on • 0x0C – display on, cursor off • 0x0E – display on, cursor blinking • 0x0F - display on, cursor blinking
- 18. • 0x10 – shift cursor left • 0x14 – shift cursor right • 0x0F - display on, cursor blinking • 0x10 – shift cursor left • 0x14 – shift cursor right • 0x18 – shift the entire display to left • 0x1C – shift the entire display to right • 0x80 – force cursor to beginning of the first line • 0xC0 – force cursor to beginning of the second line • 0x38 – 2 lines & 5*7 matrix
- 19. LCD INTERFACING:
- 20. FLOW CHART start Fire=1 Buzzer=0 & fan=0 Displays No fire Fan, buzzer off if(fire==0) NO YES Fire=0 Buzzer=1 & fan=1 Displays fire detected Fan, buzzer ON stop
- 23. As soon as the fire sensor detects the fire,Air blower starts blows the air with an alarm Here alarm and air blower works on the conditions we had mentioned in the program. Fire senor
- 25. Advantages: • Night time Fire Safety • Alerts • Many lifes are saved
- 26. Future scope • Many cases are there where there is the loss of lifes, valuable information and properties due to fire accidents, But with our project we can stop them…..
- 27. Conclusion • death or serious injury and loss of property can be avoided in households where alarms are used.
- 28. Thank you…