Rajitha priya(wk 413)
- 1. GSM based Car Engine Control Implementation to Stop Car Theft INTERNAL GUIDE: Mr. B.KISHORE BABU (Head Of The Dept. - ECE) K.LAKSHMI PRIYANKA (09TU1A04A3) K.RAJITHA (09TU1A0488)
- 2. OBJECTIVE OF THE PROJECT: •The main aim of this project is to implement SMS based car engine control system to prevent car theft using GSM modem CONTENTS: •Introduction •Block diagram •Schematic diagram •Hardware components •Micro controller •Features •Software components •Applications •Advantages •Conclusion
- 3. INTRODUCTION ABOUT PROJECT: Security is prime concern for every one. Nowadays all the automotives are equipped with auto cop systems. Even though, the thieves are breaking the barriers and steal the vehicles. This project is the right solution for this problem.
- 4. BLOCK DIAGRAM: GSM Contrast Modem Control 16X2 LCD MAX 232 8 9 S CAR MAX 232 RELAY 5 ENGINE Crystal 2 Locking system RESET EEPROM Key Pad
- 5. BLOCK DIAGRAM DESCRIPTION: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION): 8051 is the heart of the project. A GSM modem is interfaced to microcontroller. This modem receives the messages from control mobile and sends as input to MCU. The MCU verify for authentication of the number and, if the number is authorized, engine control will be taken place, EEPROM is interfaced to this controller to save the engine position at every instant.
- 6. Thisengine position information will not be deleted even in power failure conditions. 3X4 keypad is interfaced to change the mobile number at any time. 16X2 LCD is interfaced to display user-required information. GSM network operators have roaming facilities, user can often continue to use there mobile phones when they travel to other countries etc….
- 7. POWER SUPPLY: Step down Bridge Filter rectifier Circuit Regulator T/F Power supply to all sections This project uses regulated 5v, 750mA power supply. 7805 and 7812 three terminal voltage regulators are used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/12v step down transformer.
- 9. SCHEMATIC DIAGRAM DESCRIPTION: AT89S52 MCU divided into total 4 ports and name as P0,P1,P2,P4(ports). GSM modem is interfaced through MAX 232 to port3. Port 1 is connected to LCD display the condition of appliances which are controlled by the GSM. A upto coupler is used in between microcontroller loads which is connected to port3 Supply is given to 40 and 20th pins of MCU.
- 10. HARDWARE COMPONENTS: AT89S52 Microcontroller: The AT89S52 is a low-power, high performance CMOS 8-bit microcontroller with 8K bytes of in- system programmable Flash memory. • 16x2 LCD: • LCD screen consists of two lines with 16 characters each. Contrast on display depends on the power supply voltage and whether messages are displayed in one or two lines. • KEYPAD: • Keypad is the most widely used input/output device.
- 12. MICRO CONTROLLER INTRODUCTION: The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the Indus-try-standard 89S52 instruction set and pin out. Theon-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.
- 13. PIN DIAGRAM:
- 14. PIN DESCRIOPTION: VCC: supply voltage GND: ground PORT 0: Port 0 is an 8-bit open drain bidirectional I/O port. As an output port, each pin can sink eight TTL inputs. PORT 1: Port 1 is an 8-bit bidirectional I/O port with internal pullups. The Port 1 output buffers can sink/source four TTL inputs
- 15. PORT 2: Port 2 emits the high-order address byte during fetches from external program memory and during accesses to external data memory that use 16-bit addresses (MOVX @ DPTR PORT 3: Port 3 pins that are externally being pulled low will source current (IIL) because of the pullups. Port 3 also receives some control signals for Flash programming and verification. RST: Reset input. A high on this pin for two machine cycles while the oscillator is running resets the device.
- 16. ALE/PROG: Address Latch Enable (ALE) is an output pulse for latching the low byte of the address during accesses to external memory. PSEN: Program Store Enable (PSEN) is the read strobe to external program memory EA/VPP: External Access Enable. EA must be strapped to GND in order to enable the device to fetch code from external program memory locations starting at 0000H up to FFFFH. XTAL2: Output from the inverting oscillator amplifier. XTAL1 and XTAL2 are the input and output, respectively, of an inverting amplifier that can be configured for use as an on-chip oscillator.
- 17. FEATURES: 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Eight Interrupt Sources Watchdog Timer Dual Data Pointer Power-off Flag
- 18. SOFTWARE COMPONENTS: • KEIL SOFTWARE: Keil compiler is a software used where the machine language code is written and compiled. • PROLOAD: Proload is a software which accepts only hex files. Once the machine code is converted into hex code, that hex code has to be dumped into the microcontroller placed in the programmer kit and this is done by the Proload.
- 19. APPLICATIONS: Automotives Security. GPS modem also can be interfaced to this unit to trace and locate the geographical information of vehicle place.
- 20. ADVANTAGES: Vehicle can be controlled from any where. Mobile number can be changed at any time. Engine status will not be lost in power failure condition.
- 21. FUTURE SCOPE: GPS modem also can be interfaced to this unit to trace and locate the geographical information of vehicle place .
- 22. CONCLUSION: In this project work, we have studied and implemented a complete working model using a Microcontroller. Using this project, one can control his vehicle’s car engine by means of an SMS.
- 23. ANY QUERIES: