22-04-2010, 12:21 AM
plz mail me if possible d ppt on the topic 'gsm based home security system'...also mail its future enhancement..
in my project, i use 4 types of sensor 2 safe home like lpg,glass break,fire sensor & ir sensor...
22-04-2010, 12:21 AM
plz mail me if possible d ppt on the topic 'gsm based home security system'...also mail its future enhancement.. in my project, i use 4 types of sensor 2 safe home like lpg,glass break,fire sensor & ir sensor...
25-04-2010, 09:29 PM
03-04-2011, 12:47 PM
pls tell me the code for interfacing PIR sensor with atmega16l
02-08-2013, 02:16 PM
GSM Based Home Security System
GSM Based Home Security.docx (Size: 132.69 KB / Downloads: 19) Abstract Home security has been a major issue where crime is increasing and everybody wants to take proper measures to prevent intrusion. In addition there was a need to automate home so that user can take advantage of the technological advancement in such a way that a person getting off the office does not get melted with the hot climate. Introduction The project is aimed at developing the security of Home against Intruders , Gas Leak and Fire . In any of the above three cases any one met while you are out of your home than the device sends SMS to the emergency no provided to it. The report consists of a background into the area of 8051 microcontroller and mobile communication, how they are interfaced to each other and AT (Attention) commands set used in communication. SOFTWARE USED 1. Keil u-Vision 3.0 Keil Software is used provide you with software development tools for 8051 based microcontrollers. With the Keil tools, you can generate embedded applications for virtually every 8051 derivative. The supported microcontrollers are listed in the µ-vision 2. PRO51 Programmer Software THEORY OF OPERATION In this project we interfaced 8051 microcontroller with Motorola’s C168 GSM mobile phone to decode the received message and do the required action. The protocol used for the communication between the two is AT command. The microcontroller pulls the SMS received by phone, decode it, recognizes the Mobile no. and then switches on the relays attached to its port to control the appliances. After successful operation, controller sends back the acknowledgement to the user’s mobile through SMS. AT-Command set The following section describes the AT-Command set. The commands can be tried out by connecting a GSM modem to one of the PC’s COM ports. Type in the test-command, adding CR + LF (Carriage return + Line feed = \r\n) before executing. Table gives an overview of the implemented AT-Commands in this application. The use of the commands is described in the later sections. A BRIEF INTRODUCTION TO 8051 MICROCONTROLLER: When we have to learn about a new computer we have to familiarize about the machine capability we are using, and we can do it by studying the internal hardware design (devices architecture), and also to know about the size, number and the size of the registers. A microcontroller is a single chip that contains the processor (the CPU), non-volatile memory for the program (ROM or flash), volatile memory for input and output (RAM), a clock and an I/O control unit. Also called a "computer on a chip," billions of microcontroller units (MCUs) are embedded each year in a myriad of products from toys to appliances to automobiles. For example, a single vehicle can use 70 or more microcontrollers. The following picture describes a general block diagram of microcontroller. |
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