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This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.

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ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
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CHAPTER ONE
1.0                                                                INTRODUCTION
1.1                                                  BACKGROUND OF THE STUDY
The first security motion detector system was invented in the early 1950s by Samuel Bango, and which was a burglar alarm. He applied the fundamentals of a radar to ultrasonic waves – a frequency to detect fire or thief and that which human beings cannot hear. Samuel motion detector is based on the principle of Doppler Effect (Patel et al., 2016). Nowadays, most of the motion detectors work on the principle of Samuel Bango’s detector. IR sensors and microwave sensors can detect motion by the alterations in the frequencies they emit.
A security motion detector systemis used as security systems in banks, offices and shopping malls, and also as intruder alarm in home. The prevailing motion detectors can stop serious accidents by sensing the persons who are in close proximity to the detector. We can observe motion detectors in shopping malls or stores with automatic doors. The main element in the motion detector circuit is the dual infrared reflective sensor or any other detecting sensor (Papatsimpa et al., 2018).
A security motion detector systemcontains an optical, microwave, or acoustic sensor, and in many cases a transmitter for illumination. However, a passive sensor only senses a signal emitted by the moving object itself. Changes in the optical, microwave, or acoustic field in the device's proximity are interpreted by the electronics based on one of the technologies listed below. Most inexpensive motion detectors can detect up to distances of at least 15 feet (5 meters). Specialized systems are more expensive but have much longer ranges. Tomographic motion detection systems can cover much larger areas because the radio waves are at frequencies which penetrate most walls and obstructions, and are detected in multiple locations, not just at the location of the transmitter (Papatsimpa et al., 2018).
Security is the degree of protection against danger, loss and criminals. Throughout history,human have sought to protect their life, property and professions .The busy lifestyle of peopleis leading to the necessity of controlling the devices at home remotely and increasing thenecessity of keeping surveillance over their home. Now when everything is available to us wecan now design something that provides us complete security. The very basic of this beganwiththesimplealarmsystemwhichincludenotifyingsuspiciousactivitiesataverylowcost (Penning et al., 2016) .The needfor security system have rapidly grown from being specialized for high – riskareas such as banks ,companies ,governmental institutions),to be available and demandedrapidly by the average public. Some of the common characteristics of motion detection alarmand security system as follow 24 hours monitoring, difficult to hack, Ability to control doorsand motion sensor. The motion sensor used in this work is the pyroelectric device that detectsmotion by measuringchanges in the infrared levels emitted by surrounding objects.
This study is on building a spy-camera controlled smart door security system with audio status alerts. The system works in this way: when a visitor approaches the door, a spy camera captures the image and sends it to the homeowner’s preregistered GSM number. An audio alert message welcomes the guest and asks him/her to wait for access permission. The homeowner decides whether to grant the access or not, from the app installed on his android enabled GSM phone to monitor and control the door. There will be two sensors; One to check for the presence of human, another to check the distance of the person from the door. Once the visitor reaches a certain predefined distance from the door, the sensor sends signal to the microcontroller which activates the spy-camera and it captures the visitor’s image and sends it to the registered email address.
1.2                                                         PROBLEM STATEMENT
Many and different security devices have existed in the past but they are limited on buzzing an alarm, and sending SMS using GSM module when an object is detected. In most recently, CCTV’s usually seen at many places such as banks for continuously recordthe situation (Upasana et al., 2015), which is stored by an external storage device – digital video recorder (DVR). However, the proposed study alerts the user whenever any Intruder trying to break in our house by capturing and sending his photo to user’s telegram. The device was built around PIR motion detector and ESP32- CAM. Humanmotiondetectionistodevelopasystemtomonitorthearea while the ESP-32  Cam has an inbuilt webcamera and memory. ESP-32 cam captures the visitor and send it the captured image to the user’s GSM line, at the same time save it and an audio message will welcome the visitor, directing him to wait for access permission.Meanwhile, the registered phone number will be notified via SMS about the presence of the person and to enable the homeowner check his/her email for the image. Thereafter, he/she decides whether to grant access or otherwise.
1.3                                           AIM AND OBJECTIVES OF THE STUDY
The main aim of this work is to build an intelligent intruder motion alert and security that can sense thepresence of intruder and notifies theowners immediately by capturing and sending intruder’s photo to user’s GSM line.
The objectives of the study are:

• To monitor doors using spy camera- (to detect when visitors approach the door)
• To detect motion - (for visitors alert)
• To activate an audio message welcoming device that will welcome the guest and asks him to wait for access permission.
• To use spy camera to captures the image of the visitor and sends it to the homeowner’s preregistered GSM number.
• To provide a very cost effective security system that can be placed anywhere in the house withlessmaintenancecost.

1.4                                            SCOPE / LIMITATION OF THE STUDY
The scope of this study covers the design Real time security system usingHumanmotiondetection and spy cameratodevelopasystemtomonitortheany movement close to the door. There will be two sensors; One to check for the presence of human, another to check the distance of the person from the door. Once the visitor reaches a certain predefined distance from the door, the sensor sends signal to the microcontroller which activates the spy-camera and it captures the visitor’s image and sends it to the registered email address.
1.5                                                   SIGNIFICANCE OF THE STUDY
This study shall serve as a means of promoting security in our environment without human intervention. To the student involved, this study will help him to become familiar with the ESP32-CAM Development board and PIR sensor.

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CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' is also available. Order full work to download. Chapter two of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' consists of the literature review. In this chapter all the related work on ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' was reviewed.

CHAPTER THREE: The complete chapter three of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' is available. Order full work to download. Chapter three of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' detector consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

CHAPTER FOUR: The complete chapter four of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' is available. Order full work to download. Chapter four of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' detector consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' is available. Order full work to download. Chapter five of ''design and construction of a spy-camera controlled smart door security system with audio status alerts'' detector consist of conclusion, recommendation and references.

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