American Journal of Engineering Research (AJER) 2015 American Journal of Engineering Research (AJER) e-ISSN: 2320-0847 p-ISSN : 2320-0936 Volume-4, Issue-6, pp-102-111 www.ajer.org Research Paper Open Access www.ajer.org Page 102 Human Body Motion Detective Home Security System with Automatic Lamp and User Programmable Text Alert GSM Mobile Phone Number, Unique PIN to Allow Universal Users Using PIR Sensor Oyebola B. O. Department of Electrical/Electronic Engineering Technology Gateway (ICT) Polytechnic Saapade, Ogun State, Nigeria ABSTRACT: Insecurity is not a credit to any responsible society, and the conventional use of watch-man has drawbacks of huge risk of life and cost intensive. The use home security system with user programmable text alert GSM mobile phone number with unique PIN to allow universal users with human body motion detective can overcome these limitations. This paper presents reliable security system that is able to recognize human body motion and send an alert message to inform the owner(at any location in the world where there is GSM mobile network coverage) of the house through an SMS alert when an unwanted visitor or thief enters the range of the sensor. The system design is in three main phases: the sensitivity, central processing and action. The sensitivity is the perception section that is done through PIR sensor mounted at watch-area, central processing is performed by a programmed microcontroller, and the action (task) is done through an interaction of an attached on-board GSM module to the processor (the microcontroller) which then send an SMS alert to the user or owner mobile phone number. This system is design to only detect only (or part of human) body motion. KEYWORDS - Human, body, Motion, Sensor, Microcontroller, SMS, Alert, Lamp, Mobile, Phone I. INTRODUCTION A high level of theft or insecurity calls for better security system. It is much safer to have a system that monitors and communicates to the device owner without putting human life to risk in the name of “Watchman”. This insecurity has paved way to increasing rate of stealing packed cars, money and valuable things in the home even with security. In order to enhance an improved and life risk free security system, the purpose of this study is to aid a better security system of house with the use of GSM. Thi s system monitors one‟s home against theft and has a text message sent to the house owner, telling him that there is an unauthorized person close to the house. The system will also notice what is happening around the building. With this home security system, the house is always protected. The total absence of sufficient security personnel in a house is a great discomfort to house owners. This project has three basic modules along with a GSM module. GSM module is used to send the SMS whenever there are changes in any of the three modules. First module of this project detects the incidence of an intruder. This feature is helpful at night time or whenever we are out of our home. LED placed outside the house displays this status. And if person comes closer the more then the LED is turned on. Second part of project serves the functionality of the GSM network that quickly alerts the owner of the house through a sms sending this data to a GSM modem through serial port. The new age of technology has redefined communication. Most people nowadays have access to mobile phones and thus the world indeed has become a global village. At any given moment, any particular individual can be contacted with the mobile phone. But the application of mobile phone cannot just be restricted to sending SMS or starting conversations. New innovations and ideas can be generated from it that can further enhance its capabilities. Technologies such as Infra-red[1,2], Bluetooth[3], and Global system for Mobile Communication[4] to mention a few, have been developed in recent years to show the very fact that improvements are in fact possible and these improvement have eased our life and the standard of living.