ALIVE HUMAN BEING DETECTOR IN WAR FIELDS USING GSM AS WIRELESS TECHNOLOGY

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1 ALIVE HUMAN BEING DETECTOR IN WAR FIELDS USING GSM AS WIRELESS TECHNOLOGY Rachel Evangeline Christian 1, Sindhu Rani A.H 2, Tulasi. M 3, Guided by Sridevi Malipatil 4 1 B.E, Computer Science Engineering, Rao Bahadur Y Mahabaleshwarappa Engineering College, rachelevangelinechristian@gmail.com 2 B.E, Computer Science Engineering, Rao Bahadur Y Mahabaleshwarappa Engineering College, sindhubutna@gmail.com 3 B.E, Computer Science Engineering, Rao Bahadur Y Mahabaleshwarappa Engineering College, tulasi5.rymec@gmail.com 4 M.tech, Computer Science Engineering, Rao Bahadur Y Mahabaleshwarappa Engineering College, sridevi.siddu@gmail.com ABSTRACT The aim of this paper is to develop an embedded human alive detection system in war fields by using PIR sensor and GSM as wireless technology. There are many PIR sensors in use today but the sensor that is used will detect the Infrared rays that are emitted from the human body. We know that in war fields there are many situations that occur like some people are very badly wounded, injured by the bullets, some of them cannot help themselves and some people can be unconscious (means they may be still alive) there will be no quick medical service to rescue them and due to the delay in the medical service people may lose their life instead when the medical service is given on time then that person can be rescued from death. In war fields a rescue personal cannot go to each person to check that the person is alive or dead so in the place of rescue personal the PIR senor will do its work by detecting the person who are alive by the infrared rays released by the human body at a particular range. When a alive human being is detected in the range of that PIR sensor then it sends the signal to the microcontroller and the microcontroller sends the signal to the GSM (global system for mobile communication) this GSM sends the message to the rescue team the message will be sent as alive human detected. The code contains the registered mobile number of the rescue team. Then the rescue operation will be fast in detecting the persons who are alive. The rescue team can give save many people life at a faster rate through this embedded system. Keywords: Microcontroller AT89S52, PIR sensor, GSM, LCD, Power supply INTRODUCTION This autonomous system is an innovation of modern technology. It has been able to provide significant support to mankind by accomplishing task that is impossible for human beings. The proposed embedded system detects alive human body in the catastrophic environment which is very helpful for rescue operations.in areas like war fields personnel rescue is difficult. In such circumstances the proposed system helps to perform tasks that cannot be performed by rescue team or modern tools and techniques. The proposed system detects alive humans by using a special type of sensor called PIR sensor.pir sensor detects infrared radiations that are emitted by the human body. For efficient wireless communication we use GSM (Global System for Mobile).This GSM communication includes base station sub-system Network and switching subsystem, GPRS core network, and Operational Support System(OSS). When the infrared radiations are detected from the human body then the alert message is send to the Observer. 2. RELATED WORK: The objective of the existing project was developed as a motion sensor alarm based on PIR sensor module. The presence of the any objects it creates a sudden change in the infrared radiations. In this project microcontroller monitors the output continuously from the sensor module and turns a buzzer on when it goes active. The sensor is in retriggered mode, the buzzer stays on as long as the motion is continuously sensed. It detects only the motion. It will detect all objects when it sense near to system. It only detects but does not send any alert message to the rescue team. It does not use wireless

2 technology. 3. PROPOSED WORK This project is implemented on an 8051 based AT89S52 developed board combined with PIR sensor, GSM and LCD for display purpose. Electromagnetic spectrum has Infrared radiation with the wave length that is higher than visible light. Infrared radiation can be detected but not visible to human eye. Objects that generate infrared radiation and that object include human beings whose radiation is strongest at a wavelength of 9.4μm. The working nature of our project is that the PIR sensor which is connected to our microcontroller embedded board is sensed whenever a person s movement. In war areas so many will be alive. But nobody will take care of those. Our project will be in use at those times. Whenever an alive person detected by the PIR sensor microcontroller gives message to the person, who is observing Hardware Requirements 1. Micro Controller (AT89S52) 2. PIR sensor 3. Buzzer 4. GSM 5. Power supply 3.2. Software Requirements 1. KEIL is a c compiler. 2. Embedded C is extension of C programming. 3. RIDE to write code. 4. BLOCK DIAGRAM PIR Sensor RPS MICRO CONTROLLER AT89S52 LCD 16x2 GSM Crystal Fig1: Architecture of the system 4.1. PIR sensor PIR sensor is a passive infrared sensor which measures the infrared radiations. The term passive in this instance refer to the fact that PIR devices do not generate or radiate any energy for detection they work entirely by detecting the energy produced by the other objects. They don t detect or measure heat; instead they distinguish the infrared radiation emitted from an object. The Plastic window covering may have multiple facets molded into it, to focus the infrared energy on to the sensor. Each individual facet is a Fresnel lens. Fresnel lens condenses or compresses light furnishing a vast

3 range of infrared radiations to the sensor. Sensitivity: The sensor is designed to adjust too slowly to the changing conditions that would happen normally as the day proceeds and the environment conditions change. Fig2: PIR sensor 4.2. AT89S52 The AT89S52 is a high-potential, low-power, CMOS 8-bit microcontroller with 8Kilo bytes of insystem programming Flash memory. It is manufactured using Atmel s high-density not volatile memory technology and is well suited with the industry-standard 80C51 micro controller. The onchip Flash enables the program memory to modify the program in-system or by a standard non volatile memory programmer. By combining a versatile 8-bit CPU with in-system programming flash one monolithic chip; the Atmel AT89S52 is a potential micro controller, which renders a highly flexible and cost-effective solution to many embedded control applications. Fig3: pin diagram of AT89S52 Fig4: circuit board of microcontroller 4.3. LCD A liquid crystal display (LCD) has a flat display and is thin device consisting of many color or monochrome pixels which are positioned in front of a light source or reflector. A program must and should provide interaction with the outside world through input and output devices that interact directly with a human being. One of the most frequently used devices are attached to a controller is an LCD display. One of the most common LCDs connected to the controllers are 16x2 displays. This means 16 characters per line by 2 lines GSM GSM (Global System for Mobile communications) is a cellular or a mobile network, which means that mobile phones connected to it by searching for cells in the immediate vicinity. GSM networks will function in 4 various frequency ranges. Most GSM networks manage from 900 MHz to 1800 MHz bands. It also provides a low-cost, to the network conveyor, alternative to voice calls, the Short message service (SMS, also called "text messaging"), which is available in real time on other

4 conventional mobiles as well Power supply Fig5: GSM model Step down transformer Bridge Rectifier Filter Circuit Regulator section Fig6: power supply flow The main source of electrical power is Power supply. A device or system that provides electrical or other types of energy to single output load or group of loads is known as power supply unit or PSU. The term is most frequently applied to electrical energy suppliers, less often to machines-driven ones, and hardly to others. This power supply section is required to convert AC signal to DC signal and also to decreases the amplitude of the signal. The obtainable voltage signal from the mains is 230V/50Hz which is in the form of AC voltage, but the demand is for DC voltage (no frequency) with the amplitude of +5V and +12V for various applications. 5. SOFTWARE COMPONENTS 5.1. Embedded C It is a set of language extensions for the C programming language by the c standards committee to address commonality issues that exist between C extensions to the C language in order to support exotic features such as fixed point arithmetic, multiple distinct memory banks and basics I/O operations KEIL The KEIL 8051 development tools are designed to solve the complex problems facing embedded software developers. The KEIL development tools support a huge range of standard microcontroller devices from a variety of vendors. 6. WORKING METHOD Start

5 PIR Buzzer Microcontroller LCD display GSM Sending SMS to the Rescue team ` Stop Fig7: flow diagram of the system The working nature of our project is that the PIR sensor which is connected to microcontroller embedded board will detect the alive person. Firstly regulated power supply is given to the system for activation. In the proposed system we use GSM module which communicates with the microcontroller. Three basic signals are required RXD (receiver), TXD (transmitter), GND (ground). GSM is two way communications. Using the above signals, SMS is sent through GSM modem (limited to 140 characters) to the rescue team. When alive person is detected the buzzer goes in on state and sms is sent to the rescue team through GSM State diagram Initially the power should be in ON mode for the system to progress its activity of detection. When the supply is ON, the system gets activated. Whenever human being is been detected the PIR sensor senses the presence and signals the microcontroller in turn it activates the GSM module to forward the "Alive human being detected text to the registered mobile number as specified in the source code of the observer. Simultaneously buzzer goes in ON mode and text used to intimate the observer will scroll on the LCD display. Displays the information such as sending message in case of delay encountered. When message has reached the observer LCD displays as message sent. Fig8: state diagram of the system

6 p-issn: NON-FUNCTIONAL REQUIREMENTS 7.1. Performance Requirements The sensor, GSM, microcontroller requirements in our project increases the performance when compared to the older system as sensor detects the physical entity such as humans and immediate message is sent to the observer for protection of the detected person or attack the intruder Design Constraints As the designed system is an embedded system, there are connections which seems complex to the designer through the outline view of circuit and scare in missing the soldering point. Care should be taken to solder the connection in right and perfect manner wherever the necessity required. 8. CONCLUSION The purpose of the proposed system is to provide a cost effective system for rescue of human beings in war feilds.the proposed system uses a low cost sensor which is easily available. It is impossible for an individual to visit the war fields. So, in such situations, the proposed system can be useful. 9. FUTURE ENHANCMENT The enhancement of the system can be done by incorporating a GPRS system can locate the actual position of the person in a disabled conditions. Zigbee technology can be used when there is no proper network for communication. In the future enhancement can be done by incorporating an IR camera that can exactly capture IR pattern emitted by human body. Furthermore, metal and bomb detector can be used to protect from possible damage. REFERENCES 1. Mohd.Mazidi, AT89S52 the 8051 micro controller and embedded systems Embedded systems with 8051 by kenith j ayala 5. Human Motion Detection Using Passive Infra Red Sensor K Sravani, Md Parvez Ahmed, N Chandra Sekhar, G Sirisha,V Prasad. 6. Kenneth G, Eskildsen,Great Neak, Method and apparatus for large signal detection in PIR application(2007). 7. Larry Hurwitz,Alpine, Apparatus and methods for generating alerts.(2010). 8. Wouter dekort (2013) programming in C [online: 9. Stevenf Barrett,Daniel J.Packand Mitchell a.thornton(2007) Atmel AVR microcontroller primer; programming and interfacing online: IJRISE editor@ijrise.org