This document describes the design of a solar-powered electronic jacket (E-Jacket) that maintains a comfortable temperature for the wearer. The E-Jacket uses a peltier plate controlled by a microcontroller to provide heating or cooling as needed. It also includes a GPS and GSM module to track the wearer's location and send messages if help is needed. The document outlines the components, hardware implementation, working, and results of the E-Jacket design. It aims to protect people from extreme hot or cold weather conditions.

1. SOLAR BASED E-JACKET
1
Guided by Presented
by
Dr. T.Arun Prasath Suprabhat Bharti
Assosiate Professor/EEE
Mrs. P.Priya
Assistant Professor/EEE
Department of Electrical and Electronics Engineering
Kalasalingam Academy of Research and Education
Krishnankoil, Virudhunagar, Tamilnadu-6261268/4/2018 1

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 Abstract
 Introduction
 Proposed Block Diagram
 Component Description
 Hardware Implementation
 Working
 Result
References
CONTENTS

3. ABSTRACT
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 We face several types of weather in a year. In that summer and winter is main. Both very cold and very hot
temperatures can be dangerous to health.
 Excessive exposure to heat is referred to as heat stress and excessive exposure to cold is referred to as cold stress.
 In a very hot environment, the most serious concern is heat stroke. At very cold temperatures, the most serious
concern is the risk of hypothermia or dangerous overcooling of the body.
 In this paper we are going to design an E-Jacket which gives better protection who lives in extreme weather
conditions.
 GPS & GSM modules are also used in this jacket to trace the location.
 Any problem occurs then the messages will be sent automatically to the concern.

4. INTRODUCTION
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 Excessive exposure to heat is referred to as heat stress and excessive exposure to cold is referred to as cold stress. In a
very hot environment, the most serious concern is heat stroke. At very cold temperatures, the most serious concern is
the risk of hypothermia or dangerous overcooling of the body.
 In this paper we are going to design an E-Jacket which gives better protection who lives in extreme weather
conditions.
 This jacket maintains the desired temperature inside the jacket. GPS & GSM modules are also used in this jacket to
trace the location. Messages can be sent when the respective person is in the problem. Here we are using Solar Panels
to power up the internal circuitry of the E-Jacket.
 A 6 V 4.5 Ah DC lead acid rechargeable battery is used for storing the energy. We are using conventional battery
charging unit also for giving supply to the circuitry. Atmega 328 micro controller is the heart of the circuit as it
controls all the functions.
 The project is operated in two modes summer mode and winter mode. The heater/cooler in turn will help us to provide
heat or cool effect inside the uniform which helps the soldier to bear to any kind of external environment and any one
can work efficiently without heat stress or cold stress.

5. PROPOSED PROJECT BLOCK DIAGRAM
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6. COMPONENT DESCRIPTION
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Microcontroller (Arduino Uno)
 It has 14 digital input/output pins of which 6 can be used as PWM outputs, 6 analog inputs, a 16 MHz crystal oscillator,
a USB connection, a power jack, an ICSP header, and a reset button.
 It is also a powerful microcontroller which provides a highly-flexible and cost-effective solution.

7. COMPONENT DETAILS
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LCD
 It stands for liquid crystal display.
 LCD used here is 16 by 2. It contains the 16 pin. 8 pin is used for data communication, read, write, enable, Brightness
control and 4 pins for power supply.
 It is used to display data.
Peltier Plate
 Peltier plate used here is used to provide both heating as well as cooling effect according to need.
 Thermoelectric cooling uses the Peltier effect to create a heat flux between the junctions of two different types of
materials.

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 A Peltier cooler, heater which transfers heat from one side of the device to the other, with consumption of electrical
energy, depending on the direction of the current. Such an instrument is also called a Peltier device.
 A Peltier cooler can also be used as a thermoelectric generator. When operated as a cooler, a voltage is applied across
the device, and as a result, a difference in temperature will build up between the two sides.

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Temperature Sensor
 The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the
Celsius temperature.
 The LM35 has low cost, low output impedance, linear output, and precise inherent calibration make interfacing to read out
or control circuitry especially easy.
 It can be used with single power supplies, or with plus and minus supplies . As it draws only 60 μA from its supply, it has
very low self-heating, less than 0.1°C in still air. The LM35 is rated to operate over a −55° to +150°C temperature range.

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GSM/GPRS
 GSM/GPRS module is used to establish communication between a computer and a GSM-GPRS system.
 GSM/GPRS module consists of a GSM/GPRS modem assembled together with power supply circuit and communication
interfaces (like RS-232, USB, etc.) for computer.
 A GSM/GPRS MODEM can perform the following operations:
1. Receive, send or delete SMS messages in a SIM.
2. Read, add, search phonebook entries of the SIM.
3. Make, Receive, or reject a voice call.

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GPS
 GPS systems are extremely versatile and can be found in almost any industry sector.
 They can be used to map forests, help farmers harvest their fields, and navigate airplanes on the ground or in the air.
 GPS systems are used in military applications and by emergency crews to locate people in need of assistance.

12. HARDWARE IMPLEMENTATION
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A full set up of the hardware

13. WORKING
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 Power supply in the form of battery may be used.
 A Peltier thermoelectric device which is connected generates cooling effect on one side and heat is dissipated on other
side through heat sink.
 Micro controller allows dynamic and faster control.
 Liquid crystal display (LCD) makes the system user-friendly. Here we are using LCD Display for displaying the values
of present and maximum voltage values which are present in the power supply and show the amount of temperature.
 The project is operated in two modes summer mode and winter mode. Automatically temperature sensor detects
temperature and switch to respective mode.
 Peltier plate is present in jacket which will do cooling and heating mechanism.
 The heater/cooler in turn will help us to provide cooling or warming effect inside the uniform which helps the soldier to
bear to any kind of external environment and he can work efficiently without heat stress or cold stress.
 GSM/GPRS and GPS system will be also be active.

14. RESULT
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Selection of mode
Switch to change the mode
Heating mode Cooling mode

15. REFERENCES
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