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Full Project – Design and construction of a baby monitoring system with wireless notification

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CHAPTER ONE

INTRODUCTION

1.1 BACKGROUND INFORMATION

Infant care has become a challenge to many families in their daily life, As we can see in Nigeria father need to go for work daily leaving mother at home taking care of the home activities as well as children, therefore more stress is on mothers. And also baby crying is one of the everyday situations that take attention of the mother, Because in most cases mothers need to leave their babies alone to attend other activities of the home. If a system is developed which notify mothers whenever their babies are crying and they are far from them it will be of great help to such mothers as they can work in favorable environment. Also urgent situations can be quikly notify and handle within shorter time. Usually, when a young baby cries, the cause is one of the following things i.e. they are hungry, tired, not feeling well or need their diaper changed. So by developing a prototype project which can monitor the presence of cry from the babies, and wireless alarm notify the parent for the baby cry.

Many home-care systems are available but majority of this system are specially designed for the aged people and patients. These systems can monitor their health status, automatically send out emergency signals, and have other functions. However, the caring methods for infants are not the same. Children require different type of care because they are totally dependent for their normal functions on someone else. Infants cannot give any feedback about their discomfort or health complaints. Infants cannot express themselves like old people, e. g when an infant has a fever, he/she can only express his/her discomfort by crying. Hence, a home-care system specially designed for infants is today’s need which would substantially lighten parents’ especially mother’s burden. In support of this requirement many research papers and patents for healthcare application are studied with the intention of possible solutions to take care of the infant.

This proposed system is to design and construct the baby monitoring system with wireless notification (baby cry detection) which give peace of mind to loved ones when they are away from their infant as they can get an update status of their condition. The other advantage is the programmability of alarm conditions which can be activated in any accuracy through a normal condenser microphone.

1.2 AIM

The aim of the project is to design and construct microcontroller based intelligent baby cry detection with wireless alert.

1.3 OBJECTIVES

(i) To study and develop a programming system for the microcontrolle.

(ii) To design and construct a sensing unit for baby crying

(iii) To design and construct a wireless alarm unit for notifying the user of baby crying

(iii) To design a system that will reduce stress to the mothers at home.

1.4 METHODOLOGY

The block diagram shows in Fig.1 hardware components. The code is written in mikroc C and is burnt into the microcontroller Fig. 1 Block Diagram of Proposed System the following subsections provide more details of the components used in the project.

The power supply unit: this unit is achieved by a battery 9V for supply a dc to the main Circuit

The sensing unit is achieved by a condenser microphone for sensing the baby cry attach with preamplifier to achieve the main function of the project.

Control unit

The control unit act to activate the whole output, when detect the signal from sensing unit. The Microcontroller 16F877A employs to perform the operation of the project, whereby it will be act as a central controller of the entire project circuit. The microcontroller is program by the use of mikroc compiler for translate the c-language into machine code. The machine was simulating using a proteus for error correction. This unit acts as a controller for driving the wireless transmitter for sending signal to wireless receiver alarm

Wireless alarmingunit

The wireless alarm used transmitted signal from transmitter and receiver, received the signal at the same frequency for controlling the alarm, 20 meter away.

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