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Abstract

Java Based Fire Alarm System Project is to detect a fire or temperature increase in a room by monitoring if the temperature is within the normal and maximum limits and if it exceeds the limits, then to alert the authorized person by sending sms from system (PC) to his mobile. The main advantage of this system is that the fire can be detected early so that the necessary steps can be taken to prevent any further hazards.

To improve the system by enabling the alarm to reach an authorized person who need not be present at the actual location by sending an sms from the nearby system (PC) to his mobile. This system would thus be a more effective than the existing system in today’s mobile generation.

The main features of this system are:

• We use java as the main software for sending the sms.

• We provide sms alerts about the hazard hence the message is reachable all over world in real time.

• Pc based processing.

• Microcontroller based signal processing and encoding.

This project allows a person to alert the status of locations regarding the fire hazard and to alarm him by sending the sms to mobile number; via the system. The parameters examined is the temperature level by using fire sensor, it decodes the temperature levels as “hazard, normal, and low”, by means of level comparator circuit and sends the equivalent value of compared level outputs as a single bit data for each level (either 0 or 1) to the corresponding port bits of microcontroller. Temperature level is measured by means of its corresponding sensor LM35 (real time monolithic sensor) The output from this sensor is fed to a comparator. The comparator gives the output as the hazard level status to the data encoder by microcontroller, which is transmitted further by means of 433mhz rf communication to the pc, the receiver connected to pc reads the data and feeds it to the decoder the decoder in turn communicates with pc and the provides the respective codes for the printer port there by instructing co running dynamic link library files to read the respective data from parallel port, which is designed with the help of vc++ for further communication with java .

The corresponding parameters are then displayed on the system via the proper user experience interfacing with the j2me; the project is used to send sms the status of a place that is being monitored. The heart of the project is the AT89c51 controller. The microcontroller in turn whenever the safe ranges is violated the controller. Produces an alarm, and visual display, as well as initiates the pc to send the sms to a specified mobile number using a mobile phone which is interfaced with the pc.

Proposed System:

To improve the system by enabling the alarm to reach an authorized person who need not be present at the actual location by sending an sms from the nearby system (PC) to his mobile. This system would thus be a more effective than the existing system in today’s mobile generation.

The advantageous features of the proposed system are:

• We provide sms alerts about the hazard hence the message is reachable all over the world in real time.

• This is more of a precautionary and preventive method than the existing system.

• PC based processing and so there is no need of costly hardware equipments.

• Microcontroller based signal processing and display.

HARDWARE AND SOFTWARE REQUIREMENTS

HARDWARE REQUIREMENTS:

��Fire sensor
��Microcontroller based Processing circuits
��LCD Display
��Power supply
��Buzzer

SOFTWARE REQUIREMENTS:

��Operating System : Windows 9X or Windows 2000/XP.
��Platform : j2sdk1.4.1.
��Front End : Java 2 Software Development kit
��Language Used : Java

BLOCK DIAGRAM

Java Based Fire Alarm System

1. The Programmer Tool to program ATMEL, PHILIPS, SST Series Flash Microcontroller.

2. The Programmer Tool gets connected to PC on one of the Com Port. It also contains Power Circuit except transformer (15 Volt, 1 Amp).

3. The Programmer Tool runs on WIN – 9x and NT Operating System only.

4. The GUI application helps to download Hex files from PC to target Micro controller.

5. The Serial Communication speed (Baud rate) of this card with the PC is 57600 Bits per second.

6. This Programmer Kit now supports the AT89S8252 (Parallel), EPROM 2764 / 27256, Phillips series P89C51UBP N, P89C52UBP N and SST series Microcontroller. Add–on module available for the AT89C2051 (20 Pin), EPROM 2764 / 27256 and External RAM.

7. The board contains connector to connect LCD and also to attach the Add-on modules.

Conclusion

Thus the Project entitled “JAVA BASED FIRE ALARM SYSTEM” was successfully completed within the time span allotted. All the modules were tested separately and put together to form the main system. Finally the system was tested with real data and everything worked successfully. Thus the system has fulfilled the entire objective identified. The entire system is user friendly. The performance of the system is proved to be efficient. The system was tested with and was found to have an effective planning of the functions or process with a high degree of accuracy and user friendliness.

This project helps in providing sms alerts in short intervals of time. This time interval can be extended as needed in the future. There can be many future enhancements made like sending sms to multiple numbers.