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Real-Time Automization Of Agricultural Environment for Social Modernization of Indian Agricultural System Mahesh M. Galgalikar Dept of Electronics and Telecommunication Jawaharlal Darda Institute Of Engineering & technology, Yavatmal , India Provide the detail information about the field condition to the user through SMS. Maintain faithful irrigation of the farm field via constant monitoring of 3 phase supply and other field parameters. Abstract-- The paper Real time atomization of agricultural environment for social modernization of Indian agricultural system using ARM7 and GSM is focused on automizing the the irrigation system for social walfare of Indian agricultural system and also to provide adequate irrigation in particular area. The set up consists of ARM7TDMI core, which is a 32bit microprocessor, GSM serves as an important part as it is responsible for controlling the irrigation on field and sends them to the receiver through coded signals. GSM operates through SMSes and is the link between ARM processor and centralized unit. ARM7TDMI is an advanced version of microprocessors and forms the heart of the system. Our project aims to implement the basic application of automizing the irrigation field by programming the components and building the necessary hardware. This project is used to find the exact field condition. GSM is used to inform the user about the exact field condition. The information is given on user request in form of SMS. ng. GSM modem can be controlled by standard set of AT (Attention) commands. These commands can be used to control majority of the functions of GSM modem. I. The system consists of a centralized unit, much like a mobile base station, consisting of the subscriber number. This forms the link between the user and the device. The whole system functions in the form network being connected to the centralized unit as a Node. The centralized unit is connected to many such nodes from/to which it receives or sends the data. The user communicates with the centralized unit through SMS. The centralized unit communicates with the system through SMS which will be received by the GSM with the help of the SIM card. The GSM sends this data to ARM7. ARM7 also continuously receives the data from sensors in some form of codes. After processing, this data is displayed on the LCD. The communication between various devices takes place through RS232. Thus in short whenever the system receives the activation command from the subscriber it checks all the field conditions and gives a detailed feedback to the user and waits for another activation command to start the motor. The motor is controlled by a simple manipulation in the internal structure of the starter. The starter coil is indirectly activated by means of a transistorized relay circuit. once the motor is started, a constant monitoring on soil moisture and water level is done & once the soil moisture is reached to sufficient level the motor is automatically turned off & a massage is send to subscriber that the motor is turned off. INTRODUCTION 32-bit ARM processor is the contemporary general purpose microprocessor in the embedded market used in industrial level applications. GSM, as we know, is the most widely used mobile technology. Using a simple Subscriber Identity Module (SIM), it has taken the world of mobile communication to new heights. It is based on a simple architecture. Even with the introduction of new technologies like CDMA, GSM has stood its strength due to its efficiency and simplicity. Atomized irrigation is an interesting application. Primarily for Real time atomization of agricultural environment for social modernization of Indian agricultural system. In our project, we are basically concentrating on following applications such as: To continuously monitor the soil moisture. To continuously monitor the water level of well. To check the temperature, humidity and dew point so as to forecast the weather condition. To monitor & control the whole system through GSM module. II. WORKING PRINCIPAL To continuously monitor soil moisture: In case of monitoring the soil moisture, we know that each crop requires different moisture level.we are using a soil moisture sensor which is based of the principle of parallel capacitor. As we know that the voltage across the is inversely proportional to the dielectric medium. This principle is used to determine the soil moisture by measuring the dielectric constant of soil. This is then informed the centralized unit. The centralized unit will send the message to the device of that particular subscriber. The device waits for a certain amount of default time for which it is programmed. When the user does not respond to the 978-1-4244-5586-7/10/$26.00 2010 IEEE 286 Volume Volume 1 Authorized licensed use limited to: Universidad Andres Bello. Downloaded on June 25,2010 at 12:57:08 UTC from IEEE Xplore. Restrictions apply. centralized unit in default period the device continues monitoring the field parameters and keep on sending automatically to the centralized unit. Using the database stored in EEPROM of ARM, the corresponding moisture can be known by comparing the stored values and received information from the sensor which ensures faithful irrigation for particular crop. IV. We have used ARM7TDMI processor in our model due to its advanced features described below. ARM7 consists of a number of peripherals interfaced to it. We use only the keypad matrix, LCD display, UARTS, GPIO and I2C protocol. ARM7 processor is a link between GPS and GSM modules for communication. The description of ARM7 is discussed in further sections. Features To continuously monitor the water level of the well : It is one of the significant operation. It might happen that the water level reaches to critical level and the motor is still 3.1 running. In order to avoid such situation arrangement should be there to monitor the water level. If the subscriber wants to enquire about the water level status at a particular time, he can send a message to the centralized unit. Centralized unit checks the water level and reply the subscriber with the current status. The receiver uses a standard form of message decoding called NMEA protocol. In our project, we do not display the message on LCD although we have the facility. 16/32-bit ARM7TDMI-S microcontroller is a 64 or 144 pin package. 16 kB on-chip Static RAM. 128/256 kB on-chip Flash Program Memory. 128-bit wide interface/accelerator enables high speed 60 MHz operation. In-System Programming (ISP) and In-Application Programming (IAP) via on-chip boot-loader software. Flash programming takes 1 ms per 512 byte line. Single sector or full chip erase takes 400 ms. Water level sensor: This sensor is implemented with the help of electromagnetic reed switch and a floating magnet. The reed switch is based on the principle that when it will come in contact of any magnetic field it provides conductivity. B Two 32-bit timers (with 4 capture and 4 compare channels), PWM unit (6 outputs), Real Time Clock and Watchdog. Phase sensor: It is based on the principle that whenever it will encounter 3 phases it will trigger a secondary relay circuit which in turn triggers the port pins indicating presence of all the three phases III. ARM7TDMI MICROPROCESSOR: Multiple serial interfaces including two UARTs (16C550), Fast I2C (400 kbits/s) and two SPIs 60 MHz maximum CPU clock available from programmable on-chip Phase-Locked Loop. HARDWARE DISCRIPTION On-chip crystal oscillator with an operating range of 1 MHz to 30 MHz. Two low power modes, Idle and Power-down. Processor wake-up from Power-down mode via external interrupt. V. GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) A GSM modem is a wireless modem that works with a GSM wireless network. Computers use AT commands to control modems. Both GSM modems and dial-up modems support a common set of standard AT commands. So we can use a GSM modem just like a dial-up modem. The main difference between them is that a dial-up modem sends and receives data through a fixed telephone line while a wireless modem sends and receives data through radio waves. GSM is one of the most vital components in our set up since all the communication between the users and centralized unit takes place through this modem. GSM communicates with ARM through I2C bus. 287 Volume Volume 1 Authorized licensed use limited to: Universidad Andres Bello. Downloaded on June 25,2010 at 12:57:08 UTC from IEEE Xplore. Restrictions apply. GSM has a fixed maximum cell site range of 35 km, which is imposed by technical limitations. A GSM modem can be an external device or a PC Card. Typically, an external GSM modem is connected to a computer through a serial cable or a USB cable. Like a GSM mobile phone, a GSM modem requires a SIM card from a wireless carrier in order to operate. The description of GSM is given below. VII. FUTURE SCOPE OF THE PROJECT The future scope of this project is enhanced applications with the addition of the required features. One such application is to detect the soil parameter and suggesting the proper fertilizer and its feed time. Such Sensors can be incorporated in the design. It can also be designed to detect the particular disease on the plant and suggest the proper curative measures on it. In the same manner one can exactly predict the weather if the system is made to communicate with the nearer weather station through satellite communication VIII. CONCLUSION The project is thus carried out using ARM7TDMI core with the help of GSM technologies. This project finds application in domestic agricultural field. In civilian domain, this can be used to ensure faithful irrigation of farm field, since we have the option of finding out moisture level of soil in a particular area REFERENCES ARTICLES [1] [pdf]GPS4beginers, Rev. A, December 2000. [4] [pdf]lpc-ARM-book-srn, The Insider s Guide to the PHILIPS ARM7 Based Microcontrollers. [5] [pdf]UM_LPC21XX_LPC22XX_2, LPC2129 User Manual, 03 May 2004. [6] AT Commands Interface Guide atVersion: 004, 05 April 2002 [7] David E. Simon, An Embedded Software Primer, fifth edition, 2007. [1] ADVANTAGES [pdf]ARM, Rev. 01 06, February 2004. [3] . VI. [pdf]ARM7TDMI, Technical Reference Manual. [2] www.garmin.com The main advantages derived from this project are: ARM7 is a 32-bit advance featured microprocessor that is a low power consuming processor, which is the foremost requirement of the industry. It has some unique features, which we have discussed in previous chapters. GSM is most common mobile technology with easy availability and simple operation. Its less signal deterioration inside buildings has ability to use repeaters. Talk time is generally higher in GSM phones due to the pulse nature of transmission. The availability of Subscriber Identity Modules allows users to switch networks and handsets at will. GSM covers virtually all parts of the world so international roaming is not a problem. The project can be applicable at any level for different purposes by bringing about minor changes in programming, that is, there is no need to change the basic set up every time. For critical applications that need real-time monitoring, the field condition is transmitted to a base station through radio link. For non-real-time applications the data is logged on an onboard memory and down loaded as and when required. But it has its share of drawbacks too. They are .. WEBSITES [2] www.gsmworld.com [3] www.hitex.co.uk/arm [4] www.usglobalsat.com/downloads/NMEA_commands.pdf [5] www.keil/arm [6] www.wikipedia.org/wiki/ARM_architecture [7] www.wikipedia.org/wiki/ARM7TDMI 288 Volume Volume 1 Authorized licensed use limited to: Universidad Andres Bello. Downloaded on June 25,2010 at 12:57:08 UTC from IEEE Xplore. Restrictions apply.

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