GSM

1 2 History of GSM 1 3 About GSM technology 2 to 3 4 History of CDMA 3 to 4 5 About CDMA technology 4 to 6 6 Advantage of using GSM 6 to 7 7 Advantage of using CDMA

separation. However, with this caution it is unrealistic to alarm the auto proprietor why should not able hear that alert. So all things considered we can utilize GSM system to send the instant message to the auto proprietor at his telephone. Added to this the auto proprietor will get the caught picture of that cheat. Keywords: Raspberry –Pi, GSM, Camera, Pressure senso Introduction: Vehicle is the primary spot where security begins. In nowadays, auto logo robberies are expanding. In India, logo of vehicle

degradation threshold – E-field threshold or radiation limit – Allowable BTS noise floor limit – Require antenna isolation – Interference level (from spurious emission, leakages, etc.) – Tower wind loading From the result, it was observed that six (6) GSM operators can share infrastructure for a passive infrastructure sharing scheme without severe and unacceptable degradation of system performance. For number of BTS operators greater than six (6), the noise floor becomes larger than -110dB, which is

manually. The idea proposed to this project is that using GSM technology so that the updates could be made with mobile and check for the authority in the system. So updates to these notice boards could be made through a simple SMS. The importance of notice in academic is well known to us but this system could be not only in the school or educational but also for commercial purposes such as advertising or emergency notification system. Keywords: GSM modem, AVR 328, visual basic 6.0, LCD Display. I. Introduction

system. The microcontroller is interfaced with GSM Modem via MAX232 level convertor. It is used to convert RS232 voltage levels to TTL voltage levels and vice versa. The hardware also has a 64K EEPROM chip AT24C64. This EEPROM is used to store the timings and messages to be displayed. Hardware also contains a real time clock DS1307 to maintain track of time. A 16x2 Character LCD display is

vehicle system Most of the times we may not be able to find accident location because we don’t know where accident will happen. Our project Real Time Vehicle Tracking and Accident Detection with GPS is designed to avoid such situations. Keywords-GPS, GSM,microcontroller AT89S52, Accident detection I.INTRODUCTION- Now-a-days lots of accidents happen on highways due to increase in traffic and also due to rash driving of the drivers. And in many situations the family members or the ambulance and police

AGRICULTURE is the need of most of the Indians livelihood and it is one of the main sources of livelihood. It also has a major impact on economy of the country. A major quantity of water is used for irrigation system and therefore 85% of available fresh water resources are used for yielding agricultural crops. This resource of water will decrease day by day and consumption of water will dominate and increase more than 85% in upcoming half century. This is due to the high growth in population due

Abstract: It is time consuming task for parents to check the regular presence of the children in the school. But this project of sending information to the parents whose children were absent from the school through GSM in the form of SMS will give an easy, low cost and automatic solution. This project presents a system to monitor pickup of school children to enhance the safety of children during the daily transportation to school. The system consists of two main units, a bus unit and a school unit

Table of contents Page 1. Introduction 3 2. Strategic Business Assessment 3 3. Technology 4 4. Design a Wireless System 5 5. Compatibility Plans 6 6. Planned Competitive Improvements 7 7. Other Competitive Technological Solutions 8 8. Upgrading to Next Generation 9 9. Summary and Conclusions 10 10. Work Cited 12   Introduction: Since the introduction of the first mobile phone in 1924, there has been a steady climb in developing and

It uses packet switching technique , by this mobile data is cheaper and faster. The main difference between EDGE and GPRS is data modulation. Path to 3G 3G technology was designed to support merge the existing cellular technologies such as GSM , TDMA,FDMA, CDMA and complete successfully result with new technologies as Wideband CDMA , CDMA 2000.Third generation is digital but not narrowband it is broadband. W-CDMA network is used for high capacity application signals and CDMA 2000 is the improved