AUTOMATIC LPG GAS SENSING WITH ALARM

8/11/2019 AUTOMATIC LPG GAS SENSING WITH ALARM

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AUTOMATIC LPG GAS SENSING WITH ALARM

The project deals with the design of an automatic LPG gas sensor,

which can detect the liquefied petroleum gas. The project has been designedusing the micro controller. The project has its own accuracy and has its

timing control. We can implement this project in home, industries, hotels,

where the need to protect the gas exposure. n future we can automatically

open fire extinguisher. When the lea!age of gas automatically an alarm will

be acti"ated.


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BLOCK DIAGRAM:

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AUTOMATIC SMOKE SENSING WITH ALARM

The project deals with the design of an automatic smo!e sensor,

which can detect the smo!e. The project has been designed using the microcontroller. The project has its own accuracy and has its timing control. We

can implement this project in home, industries, hotels, where the need to

protect the gas exposure. n future we can automatically open fire

extinguisher. When the lea!age of smo!e automatically an alarm will be

acti"ated.


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BLOCK DIAGRAM :

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AUTOMATIC ALCOHOL DETECTION FOR TOLLGATES

The project deals with the design of an automatic alcohol sensor,

which can detect the alcohol consumed person. The project has beendesigned using the micro controller. The project has its own accuracy and

has its timing control. We can implement this project in temples, tollgates,

industries, hotels, where the need to protect the gas exposure. When the

detection of /L)#-#L. /utomatically an alarm will be acti"ated.


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MICRO CONTROLLER BASED VOTING MACHINE

This project is the best solution to a"oid the fa!e "otes and in "alid"otes registered by our citi0ens. The project has been designed using a micro

controller 12c34. The memory is a"ailable we can ha"e many number of

candidates and that will reduce the manual counting of "otes at any time we

can !now the result within few minutes of the completion of the "oting

process. n future we may do it as a wireless module also.


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FASTEST FINGER IDENTIFICATION USING 89C51

n qui0 programs and other specific e"ents we need to !now the time

of the particular e"ent "ery precisely, but this can not be achie"ed in realtime because the pressing actions will ha"e the delay in the order of few

milli seconds with normal switch arrangement and by using gate logics.

-ence we use micro controller 12c34 to sense the press action and acti"ate

the bu00er only for the concerned pressed person indicating that he has

pressed the switch.


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EFFICIENT TRAFFIC LIGHT CONTROL USING 89C51

The aim of the project is to first sense the traffic density and based on

that we control the traffic. This completely replaces the con"entional traffic

light control system. ecause the time delay for each direction is fixed innormally a"ailable traffic control systems. There is no option in the circuit to

increase the time delay based on the traffic conditions. ut in our project we

sense the amount of traffic and accordingly we proceed further to clear the

traffic.


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EMBEDDED LASER BASED SECURITY SYSTEM.

&ecurity is a major aspect in offices and control rooms. *ot enter into

these restricted areas. /lso documents and other important files should be

protected from fire and illegal users. hence it is necessary to pro"ide a

security system in such places for safety purpose. #ur project aims at

pro"iding such a security system. The circuit consist of fire, heat, door open

8 loc!ed open sense circuit. The heat sensing circuit is sensed by thermister.When e"er heat is sensed the alarm is acti"ated. The entering of un!nown

person is sensed by the door open with the help of limit switch. the fire is

sensed by the L+% . these all other sensed out puts are input to the

microcontroller and acti"ate the bu00er. The security of the office is ensured.


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BLOCK DIAGRAM:

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EMBEDDED DOWN COUNTER AND UP COUNTER.

The project deals with the design of an automatic counter which can

count both upwards and downwards. The project has been designed using

the micro controller. The project has its own accuracy and has its timing

control i.e. the counter can count based on the different timing delays if we

change the program. /lso this project has the ad"antage of stopping the

count at any moment. When the user wants to count in the re"erse direction

simply he has to press the switch placed in the hardware in order to get the

required output.


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PC BASED COLLEGE BELL ALARM

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PC BASED TEMPERATURE MEASUREMENT

The project has to be de"eloped using @cA language. To

monitor the temperature we ha"e lot of methods, but all

those methods will not be used for distributed control

systems. These pc9based systems can gi"e "ery user9

friendly display on the computer. -ere the temperature has

to be con"erted into digital and then fed into the computer.

The project comes under the concept of "irtual

instrumentation.


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PC BASED ATTENDANCE MAINTENANCE THROUGH RF

The project deals with the design of software to be written in @)A

which maintains effecti"ely the student attendance and monitors the

presence of the student during the wor!ing timings. The project uses a

concept of %: + B%adio frequency identificationC. The concept is just to

ha"e %: + tags to be gi"en to each student or employee. These tags will

continually emit electro magnetic radiations, which will be identified by the

recei"er unit interfaced with a computer. The interface chec!s the status of

the parallel port at e"ery instant of time. There are different types of %: +s

a"alaible. We ha"e designed an acti"e %: + tag, which has got a source by

itself generated from a regulator ).

/nd also we are registering the attendance in the micro controller also

because for uneducated peoples whom cannot to operate the computer and

not only for them we can se the attendance in the micro controller itself.


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INTELLIGENT HIGHWAY ACCIDENT PREVENTER USINGULTRASONIC

The project deals with a ultrasonic based concept to

control the accidents occurring in the national highways.

The project controls and pre"ents the accident by the way it

reduces the speed of the "ehicle automatically using a

"ariable speed dri"e. Whene"er the "ehicles come the

particular 0one, then the speed automatically reduces to a

minimum "alue. it ta!e left automatically at the acti"ate

one alarm to alert the dri"er and the passenger.


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RFID BASED AUTOMATIC CAR PARKING SYSTEM

This project deals with the design of an remote control of a distant

automobile through o"er blue tooth communication. The project confinesitself in the control of the door by motor in order to implement the robotic9

based sur"eillance system. The protocol has been designed on our own and

the total operation of the "ehicle has been controlled from the remote place.


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PC BASED LASER POWER MEASUREMENT

The project is actually the design of an P) based laser

power measurement equipment. -ere the circuit senses the

intensity of the laser which has been focused on the L+% and it

is gi"en to the comparator, the comparator is act as a analog to

digital con"erter, the digital output is gi"en to the P) through

parallel port. The program which we ha"e used @)A language.

This "ery useful in industries.


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ATTENDANCE TRACKING THROUGH RFID

The project deals with the design of software to be written in@)A which maintains effecti"ely the student attendance andmonitors the presence of the student during the wor!ing timings.The project uses a concept of %: + B%adio frequencyidentificationC. The concept is just to ha"e %: + tags to be gi"en toeach student or employee. These tags will continually emit electromagnetic radiations, which will be identified by the recei"er unitinterfaced with a computer. The interface chec!s the status of the

parallel port at e"ery instant of time. There are different types of%: +s a"alaible. We ha"e designed an acti"e %: + tag which hasgot a source by itself generated from a regulator ).P%$P/ + $*$%G( 5$T$%

The project deals with the design of an equipment to read theenergy consumed in particular load through an analog energymeter and to cut off the total power supplied to a particular load on

prepay basis. ecause if we !now the importance and the cost ofenergy production we will be definitely be aware of consuming

power in a limited way. This prepaid scheme can be implementedin the places li!e marriage halls, lodges and hotel and e"en inoffices where the supply will be cut off based on the timing and theamount of energy consumed. The purpose of this project is toa"oid the on spot billing for power consumption and a post payscheme. &o we propose a technique to measure the same energythrough some digital techniques. The %otary arrangement of themeter is drilled at a corner of the rotating disc. Then through this

hole the light is sent. /s this disc is continuously rotating the lightwill be cut off by the dis! during rotation. This project may usedfor a centrali0ed measurement of energy from the $ office itself.ut this project is restricted to one house.


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The project deals with the design of a security system especially

meant of a two wheelers. ecause of the tremendous increase in the thefts of

new "ehicles we are in a position to safeguard them through some methods.

$"en the mechanical loc! systems fail because they are easily brea!able

without ma!ing any huge noise. 5ore o"er *ow a days we need lot of

security systems in all !inds area. The security system "aries depends upon

the application Bpassword, finger and "oice etc,C &o we desire to do ta!e

password security system. The project has been designed using the a remote

controller which will acti"ate the watch dog circuit placed in the bi!e. The

project has its own accuracy and has its timing control i.e. based on the

different timing delays which we ha"e implemented in the mono stable multi

"ibrator of the circuit. Whene"er somebody tries to mo"e or ma!e an

attempt to steal the bi!e an alarm will be acti"ated so that the owner and

people can become alert.

BANK TOKEN DISPLAY

ABSTRACT

This project finds its application in all the

commercial ban!s and other par!ing stations. The


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problem with the to!en display is that in the

absence of the "oice, naturally a customer may not

be drawn attention only with the display of to!en

numbers in the places li!e ban!s. ut in our

project we incorporate the display of to!en

numbers along with the '??$% to tell the digit

displayed on the screen. The project is "ery muchuseful to many other places where we ha"e to

count.


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The project is actually the design of an %: based homeautomations system which can control the loads at home by using"arious different frequencies for each equipment. -ere each de"iceis allocated with each frequency. -ere the circuit senses theselected switches at a remote place and accordingly it acti"ates thehigh "oltage loads at different places. The project finds itsapplications in controlling the industrial de"ices from a remote

place where it is dangerous to switch off or on from the near by place.

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This project is designed using the inputs from "arioussensors in order to protect our homes from the burglars. ncon"entional alarms, any one type of sensor will be used. ut inour project we use multi stages of security to sense the presence ofthie"es and to sense the openings of the doors. #nce an attempt istried to open the door is made then an alarm is acti"ated to alert theowners of the home.P) /&$+ /'T#5/T ) )#LL$G$ $LL &(&T$5

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ABSTRACT 7

The project deals with the design of equipment to protect the motor

from "oltage swage, o"er temperature. /ll the abo"e parameters are sensed

by the micro controller 12c34 through the comparators and it transmit by

L'$T##T- B "# ' 3")@>)$*= . The sensors we ha"e used that L+%,T-$%5 &T#%. The main part of the project is micro controller, for what

we ha"e used micro controller means it protect motors automatically with

any manpower and the circuit is "ery compact. #ur project is "ery use full to

many industries, where the manpower cannot wor! in that field.


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MICROCONTROLLER BASED BATTERY LEVEL

MONITORING SYSTEM

ABSTRACT

The project monitors the o"erall performance

of the battery charging system. This project is "ery

helpful in space station where an efficient controlof batteries is required. n space we are dependent

on solar power only. &o the batteries should be

operated in such a way that its charge ne"er comes

below the dangerous le"el. n order to a"oid that

we are carefully monitoring the battery parameters.

/ll the controls are actually monitored through a

micro controller.


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EMBEDDED BASED DISTRIBUTION TRANSFORMERPROTECTION SYSTEM WITH RF BLUE TOOTHCONTROL

The project deals with the design of equipment to protect the

distribution transformer from current swage, oil le"el swage, "oltage swage,

o"er temperature. /ll the abo"e parameters are sensed by the micro

controller 12c34 through the comparators and it transmit by L'$T##T-

B"# ' 3")@>)$*= . The sensors we ha"e used that L+%, T-$%5 &T#%,

L/&$%. The main part of the project is micro controller, for what we ha"e

used micro controller means it protect the distribution transformer

automatically with any manpower and the circuit is "ery compact. #ur

project is "ery use full to $ stations, where the manpower cannot wor! in

that field.

ONE DETECTIONThis project deals with the design of an automatic control of a distant automobile through

o"er blue tooth communication. The blue tooth communication is meant for shortdistances of about less than 4


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MICROCONTROLLER BASED CODE LOCK SYSTEM

The project deals with the design of a security system especiallymeant of a two wheelers. ecause of the tremendous increase in the thefts of

new "ehicles we are in a position to safeguard them through some methods.

$"en the mechanical loc! systems fail because they are easily brea!able

without ma!ing any huge noise. 5ore o"er *ow a days we need lot of

security systems in all !inds area. The security system "aries depends upon

the application Bpassword, finger and "oice etc,C &o we desire to do ta!e

password security system. The project has been designed using a remote

controller, which will acti"ate the watchdog circuit placed in the bi!e. The


different timing delays which we ha"e implemented in the mono stable multi

"ibrator of the circuit. Whene"er somebody tries to mo"e or ma!e an

attempt to steal the bi!e an alarm will be acti"ated so that the owner and

people can become alert.


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AUTOMATIC SPEED REDUCTION FOR E-CARS THROUGH RF IN SAFETYONES

This project deals with the design of an automatic control of a distantautomobile through o"er blue tooth communication. The project confinesitself in the control of the direction and the acceleration of the dc motor inorder to implement the robotic based sur"eillance system. The protocol has

been designed on our own and the total operation of the "ehicle has beencontrolled from the school 0one and hospital 0one.


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WATER LEVEL CONTROLLER USING 89C51

/utomatic tan! Le"el ndicator will continuously shows the a"ailable

water le"el in the o"erhead water tan!s and also sounds alarm when water

le"el falls below the minimum le"el or when it reaches full le"el. The o"er

all operation is controlled by a micro controller and this project can be

connected to actual pumping motor so that the power can be sa"ed if we

efficiently control the motor on time and also we can sa"e some quantity of

water of what e"er fuel for which we maintain the le"el.


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EMBEDDED STEPPER MOTOR SPEED AND DIRECTION

CONTROL

This project is precision control of stepper motor speed and direction

based on the speed and direction requirements of the user. The direction of

the stepper motor is controlled by means of rotating the energi0ing the

patterns and changing the delay included in between e"ery step mo"ement

"aries the speed. The speeds and direction of the motor is selectable through

the press switches put in the !ey matrix.


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ENERGY MEASUREMENT THROUGH RFID

The project aims at the design of a "ersatile pc based "irtual

instrument for the measurement of energy in the homes. )urrently we ha"e

analog instrument for the measurement, which gi"es the problems li!e in

accuracy, and more power consumption also. /lso $ department people

should come to indi"idual houses to note the reading. /ll the abo"e said

problems are completely eliminated from the scenario in our project. The

digital instrument we are designing is connected to a centrali0ed ser"er using

the rf communication itself and not a separate line which being the strengthof our project. nstantaneous energy consumption is communicated to the

micro computer and the bill is prepared according to the tariff fixed by the

state go"ernment.


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MICRO CONTROLLER BASED AUTOMATIC ROBOTIC ARM

This project deals with a design of micro controller based. This projectcan control a robotic arm ideally from a micro controller. the switch pressed

different actions will be done one number for pic!ing and one number for

placing. The project is "ery user friendly and does not require a s!illed

operator to do this. The arm can do a small pic! and place operation

depending on the switches pressed.


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MICRO CONTROLLER BASED CODE LOCK SECURITY

SYSTEM

The project deals with the design of a security system especially meant of a%$&T )T$+ +##%&. ecause of the tremendous increase in the thefts we are in a

position to safeguard them through some methods. $"en the mechanical loc! systems fail because they are easily brea!able without ma!ing any huge noise. 5ore o"er *ow a dayswe need lot of security systems in all !inds area. The security system "aries dependsupon the application Bpassword, finger and "oice etc,C &o we desire to do ta!e passwordsecurity system. The project has its own accuracy and has its timing control i.e. based onthe different timing delays which we ha"e implemented in the mono stable multi "ibratorof the circuit. When the code is pressed the door will automatically open using themicrocontroller.


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AUTOMATIC TELEVISION MUTING SYSTEM WHILERECEIVING TELEPHONE

#ur project is deals with the design of Telephone con"ersation can be

made disturbance free using this project. /s soon as you lift the telephone

handset to con"erse the T music system or any other application that may

be causing disturbance gets switched off. t turns #* W-$* you place the

handset bac! on the cradle this is achie"ed using polarity guard circuit

compression bridge rectifier opt coupler timer along with the associated

circuitry. We do the e"ery control through a micro controller 12c34.


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BLOCK DIAGRAM

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BATTERY LEVEL MONITORING SYSTEM UP TO 5 V

The project monitors the o"erall performance of the battery charging

system. This project is "ery helpful in space station where an efficient

control of batteries is required. n space we are dependent on solar power

only. &o the batteries should be operated in such a way that its charge ne"er

comes below the dangerous le"el. n order to a"oid that we are carefully

monitoring the battery parameters. /ll the controls are actually monitored

through a micro controller.


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AUTOMATIC PHASE SE UENCE DETECTOR

n D phase applications, if low "oltage is a"ailable in any one or Two

phases, and you want your equipment in normal "oltage this circuit will

sol"e your problem. -owe"er, a proper rating fuse needs to be used in input

lines. This pro"ides correct "oltage in same power supply lines through

relays from the other phase where the correct "oltage is a"ailable


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EMBEDDED VEHICLE SECURITY SYSTEM

The project deals with the design of a security system especially

meant of a e bi!e , e car. ecause of the tremendous increase in the thefts we

are in a position to safeguard them through some methods. $"en the

mechanical loc! systems fail because they are easily brea!able without

ma!ing any huge noise. 5ore o"er *ow a days we need lot of security

systems in all !inds area.

The security system "aries depends upon the application Bpassword,finger and "oice etc,C &o we desire to do ta!e password security system. The


different timing delays which we ha"e implemented. When the code is

pressed the door will automatically open using the micro controller.


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DISTRIBUTION TRANSFORMER PROTECTION SYSTEM

The project deals with the design of equipment to protect the

distribution transformer from current swage, oil le"el swage, "oltage swage,

o"er temperature. /ll the abo"e parameters are sensed by the micro

controller 12c34 through the comparators. The sensors we ha"e used that

L+%, T-$%5 &T#%, The main part of the project is micro controller, for

what we ha"e used micro controller means it protect the distribution

transformer automatically with any manpower and the circuit is "ery

compact. #ur project is "ery use full to $ stations, where the manpower

cannot wor! in that field.


86/144

BLOCK DIAGRAM

Powersupply

5icrocontroller

)urrentdri"e

relay

L#/+

comparator

# LL$ $L

&ensor

#LT/G$L$ $L&ensor

-$/TL$ $L&ensor


87/144

AUTOMATIC ONE DETECTION

This project deals with the design of an automatic control of a distant

automobile through o"er blue tooth communication. The project confines

itself in the control of the direction and the acceleration of the dc motor in

order to implement the robotic9based sur"eillance system. The protocol has

been designed on our own and the total operation of the "ehicle has been

controlled from the school 0one and hospital 0one.


88/144

L#)6 + /G%/57

-#&P T/L ?#*$

SCHOOL ONE

$9 6$

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89/144

AUTOMATIC RAIN SENSING AND WIPER CONTROL

The project deals with the design of rain detection and acti"ating the

wiper according to that. &o we are in a position to find the amount of rain,

which falls in a"erage in a particular year, is of our interest. The project has

its own accuracy and has its timing control i.e. based on the different timing

delays which we ha"e implemented in the mono stable multi "ibrator of the

circuit. The wiper is acti"ated with the help of stepper motor to rotate both in

cloc!wise and anti cloc!wise directions.


90/144


91/144

AUTOMATIC THREE-PHASE STARTER USING 555

This project is an automatic three9phase starter, which wor!s

under the control of 12c34 a "ersatile micro controller. The D9

phase motor first rotates in star configuration and then it runs in

delta configuration. This method is efficient method to sa"e the

motor life and reduces the power consumption. The timing can be

controlled accurately with the help of micro controller.


92/144

BLOCK DIAGRAM

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P#W$% &'PPL(

MC 333

)#*T/)T

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93/144

EMBEDDED CIRCUIT BREAKER FOR HEAVY LOAD

This project is a design of controller9based circuit brea!er. 'nli!e

con"entional 5) s here we in"ol"e micro controller for brea!ing the

circuit. The sensing circuit is dependent on a current transformer. When the

current exceeds a limit, the controller senses it sends a trip signal "ia port

;.


94/144

BLOCK DIAGRAM

Powersupply

5icrocontroller

)urrentdri"e

relayload

comparator

'nregulatedsupply


95/144

OPTICAL TACHOMETER FOR LOW RPM

The projects is deals with the design of tachometer for low power

%P5. The micro controller is the major part of the project, the micro

controller is 12c34. it has four ports. The cloc! frequency of the

controller is 4;mh0. We are counting the %P5 by optically we ha"e to

!eep the L$+ and the L+% in the narrow position, the L+% is the

sensor to count the %P5 the output of the L+% is con"erted into digital

signal and it is fed to the micro controller, we are using port 4 is the in

port and port; as out port, the readings will be displayed in the se"en

segment display.


96/144

BLOCK DIAGRAM

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P#W$% &'PL(

5icrocontroller

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L G-T '%)$5#T#%

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97/144

DTMF BASED HOME AUTOMATION

The project is actually the design of telephone based home automations

system which can control the loads at home by using "arious differentfrequencies for each equipment. -ere each de"ice is allocated with each

frequency. -ere circuit senses the selected switches at a remote place and

accordingly it acti"ates the high "oltage loads at different places. The

project finds its applications in controlling the industrial de"ices from a

remote place where it is dangerous to switch off or on from the near by

place.


98/144

BLOCK DIAGRAM

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#'TP'TP#%T

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99/144


100/144

BLOCK DIAGRAM

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5icrocontroller L/T#%

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?$%# )%#&&+$T$)T#%

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101/144

AUTOMATIC W VOLTAGE STABILI ER

/utomatic "oltage stabili0er is a de"ice which is used to stabili0e the

output "oltage with an accuracy in the order of IJ9 4


102/144

BLOCK DIAGRAM

nput;D


103/144

RADIO CONTROL SURVEILLANCE SYSTEM






controlled from the remote place.


104/144

L#)6 + /G%/57

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105/144

AUTOMATIC SINGLE PHASE CHANGER

n D phase applications, if low "oltage is a"ailable in any one or Two

phases, and you want your equipment in normal "oltage this circuit will

sol"e your problem. -owe"er, a proper rating fuse needs to be used in input

lines. This pro"ides correct "oltage in same power supply lines through

relays from the other phase where the correct "oltage is a"ailable. our

project will automatically change the phase if any one is cut off.


106/144

L#)6 + /G%/5

&T$P+#W*

+)#LT/G$

&T$P+#W*

+)#LT/G$

&T$P+#W*

+)#LT/G$

)#5P/%/T#%


107/144

PWM BASED LAMP CONTROL USING 89C51

This title controls the dc 'L speed through modulation

technique called as pulse width modulation. When the width of the #* time

increase the 'L gets more on time and hence the a"erage "oltage applied

to the dc 'L6 will increase. f the #* time is reduced then the motor

gets less a"erage "oltage. -ere "arying the applied "oltage magnitude

through PW5 "aries the speed. The gate pulses are applied through micro

controller port ;.4 and gi"en to the base of the transistor, which dri"es the

+) load.

#ften, people attempt to control +) 'L with a "ariable resistor or

"ariable resistor connected to a transistor. While the latter approach wor!s

well, it generates heat and hence wastes power. This simple pulse width

modulation +) 'L control eliminates these problems. t controls the

motor speed by dri"ing the motor with short pulses. These pulses "ary in

duration to change the speed of the 'L .


108/144

BLOCK DIAGRAM

P#W$% &'PPL(

)

)'%%$*T+% $

+) 'L

npu t

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109/144

SWITCHED MODE POWER SUPPLY

n this project we control the output "oltage a"ailable at the load as a

"ariable "oltage from < to 4; " with "ery good precision through the

switching soft triggers from a micro controller. The #* #:: pulses obtained

from the micro controller are obtained from the delay programs. ased on

the "oltage requirement we may change the delay programs, so that the a +)

to +) con"erter is reali0ed using a power transistors. / sufficient isolation

has to be ensuring to protect the micro controller as well as the load.


110/144

BLOCK DIAGRAM

P#W$% &'PL(

#'TP'TP#%T

*P'TP#%T )*P'T

!eys

'L

)'%%$*T+% $


111/144

ENERGY MEASUREMENT THROUGH POWER LINE CARRIER

COMMUNICATION

The project deals with the design of an equipment to read the

energy consumed in particular load through an analog energy meter and

through the power line itself. The purpose of this project is to a"oid the on

spot billing for power consumption. &o we propose a technique to measure

the same energy at a different place. The project transmits the signals. ut

this project is restricted to one house.


112/144

BLOCK DIAGRAM

load $nergy meter

/5PL : $% 8

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%$L/(

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Light sensor P#W$% )#'PL *G) %)' T

P#W$%

+$9)#'PL *G) %)' T

+isplaydri"er display


113/144

IR BASED FAN SPEED CONTROL

This project deals with the design of 5/*'/L room temperaturecontrol circuit, which will "ary the speed of +c fan using an infrared control.5ore o"er the project is based on embedded micro controller 12c34. -erewe ma!e the fan to rotate in 3 different speeds based on the temperatureconditions a"ailable in the room. The program for this project is assembledthrough asem344D software and flashed through a software easydownloader. This project is "ery "ersatile and has a reliable operation whencompared to the con"entional method of temperature controller. Thespecialty of this project is that it does not ha"e a "ery complicated method ofthryristor circuits.


114/144

BLOCK DIAGRAM

%

recei"e333 >


115/144

AUTOMATIC SINGLE-PHASE PREVENTER

The project deals with the design of automatic supply cut off

system for a three9phase system using micro controller 12c34. The

motor while rotating with three phases will not function properly

when the supply line is reduced from D phases to ; phases or one

phase. ut it will create huge damage to motor when two phases

are not a"ailable and if the phase sequence changes. To a"oid this

situation we are in need of putting the pre"enter circuit in between

the D9phase motor and the %( of the mains supply.


116/144

BLOCK DIAGRAM

Power

&upply

5icrocontroller

%

(

comparator

comparator

comparator

)urrentdri"e

%elay

Three phasecontactor


117/144

PC BASED PREPAID ENERGY MEASUREMENT

The project aims at the design of a versatile pc

ased virt!al instr!ment for the meas!rement of

energ" in the homes# C!rrentl" $e have analog

instr!ment for the meas!rement% $hich gives the

pro lems li&e inacc!rac"% and more time po$er

cons!mption also# Also 'B department people sho!ld

come to individ!al ho!ses to note the reading# All the

a ove said pro lems are completel" eliminated from

the scenario in o!r project# The digital instr!ment $e

are designing is connected to a centrali(ed server

!sing the rf comm!nication itself and not a separate

line $hich eing the strength of o!r project#

Instantaneo!s energ" cons!mption is comm!nicated

to the micro comp!ter and the ill is prepared

according to the tariff fi)ed " the state government#


118/144

BLOCK DIAGRAM

)#* $*T #*/L$*$%G( 5$T$%

P'L&$$FT%/)T #*

P'L&$)#*+ T #* *G

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B/T $+$P/%T5$*TC


119/144

LASER BASED WASHBASIN MIRROR LAMP CONTROL

The project deals with the design of laser based mirror lamp

controllers for wash basin. n this project the lamp glows when the user go

near by the mirror and it does not glow when he come away from the mirror.

This project sa"es the energy as well the user fatigue while switching on and

off the light. 5ore o"er this project can be extended in future e"en to control

the water flow of the wash basin.


120/144

L#)6+ /G%/57

comparator LDR

Powersu

pp

oltage regulator Laser source

)'%%$*T+ % $%

%$L/(/*+ L/5P


121/144

DUAL DC MOTOR SPEED CONTROL USING 89C51

The project is to control the speed of the +) motor through micro

controller programming so that the two +) motors are controlled through

one micro controller efficiently. The ad"antage is that we can ha"e the speed

"ariations through a digital control. The operation of each motor is fully

independent and we may operate in "arious modes li!e either one mode, two

mode operation depending on the requirement.

#ften, people attempt to control +) motors with a "ariable resistor or

"ariable resistor connected to a transistor. While the latter approach wor!s


modulation +) motor control eliminates these problems. t controls the


duration to change the speed of the motor. The longer the pulses, the faster

the motor turns, and "ice "ersa.


122/144

BLOCK DIAGRAM

P#W$%

&'PPL(

)

)'%%$*T+% $

+c motor

npu t!eys

)'%%$*T+% $

+c motor


123/144

AUTOMATIC WATER HEATER CONTROLLER

The project deals with the design of an

automatic water heater controllerA which performs it job by

comparing the thermal heat of the water. The project can control

the heat of the water. The project has been actually done using

T-$%5 &T$%.The project has its own accuracy and has its timing

control. When heat of the water is crossing the limit the

comparator what we ha"e used is switch #:: the water heater.

When heat of the water is decreasing the comparator what we ha"e

used is switch #* the water heater .


124/144

L#)6 + /G%/5

P#W$% &'PL(

W/T$% T/*6

T-$%5 &9T$% B&$*%C

%$L/(

5 )%#)#T%#LL $%

)#5P/%9/T$% ) %)' T

W/T$%

-$/T$%


125/144

MICRO CONTROLLER BASED DC MOTOR SPEED CONTROL

This title controls the dc motor speed through modulation

technique called as pulse width modulation. When the width of the #* timeincrease the motor gets more on time and hence the a"erage "oltage applied

to the dc motor will increase. f the #* time is reduced then the motor gets

less a"erage "oltage. -ere "arying the applied "oltage magnitude through

PW5 "aries the speed. The gate pulses are applied through micro controller

port ;.4 and gi"en to the base of the transistor, which dri"es the +) load.

#ften, people attempt to control +) motors with a "ariable resistor or"ariable resistor connected to a transistor. While the latter approach wor!s


modulation +) motor control eliminates these problems. t controls the


duration to change the speed of the motor. The longer the pulses, the faster

the motor turns, and "ice "ersa.


126/144

BLOCK DIAGRAM

P#W$% &'PPL(

)

)'%%$*T+% $

+c motor

npu t

!eys


127/144

EMBEDDED MOTOR PROTECTION SYSTEM

The project deals with the design of equipment to protect the motor

from "oltage swage, o"er temperature. /ll the abo"e parameters are sensed

by the micro controller 12c34 through the comparators and it transmit by

L'$T##T- B "# ' 3")@>)$*= . The sensors we ha"e used that L+%,

T-$%5 &T#%. The main part of the project is micro controller, for what



many industries, where the manpower cannot wor! in that field.


128/144

BLOCK DIAGRAM

)'%%$*T+% $%

)'%%$*T+% $% #LT/G$

&/G ))#5P/%/T#%

)#5P/%/T#% # $% T$5P$%/T'%$

)ontrol)ircuit

bu00er

P#W$% &'PL(

5#T#% relay


129/144

VEHICLE TRACKING SYSTEM






controlled from the remote place.


130/144

L#)6 + /G%/57

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%$)$ $%

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131/144

TEMPERATURE BASED FAN SPEED CONTROL

The project deals with the design of an automated fan

control depend upon the temperature of room. The temperature

can be selected digitally from the control switches a"ailable at

the panel board of the project. The project has been designed

using 12c34 micro controller. The program to control all the

operations has been written in assembly language. The project

controls the temperature by fully digital means and not by

analog means. The project has its own sensiti"e to control the

fan.


132/144

BLOCK DIAGRAM

)'%%$*T+% $%

)

)#5P/%/T#% T$5P$%/T'%$

&$*%

)ontrol)ircuit

P#W$% &'PL(

FAN %$L/(


133/144

RF BASED HOME AUTOMATION

The project is actually the design of an %: based home

automations system, which can control the loads at home by

using "arious different frequencies for each equipment. -ere

each de"ice is allocated with each frequency. -ere the circuit

senses the selected switches at a remote place and accordingly

it acti"ates the high "oltage loads at different places. The

project finds its applications in controlling the industrial

de"ices from a remote place where it is dangerous to switch off

or on from the near by place .


134/144

L#)6 + /G%/5

TRANSMITTER

RECEIVER

*P'TP#%T

)'%%$*T+% $

%:T%/*& .

P#W$%

L#/+

%:%$)$%.

P#W$% &'PPL(

%$L/(

)


135/144

GSM BASED LOAD CONTROL AND PROTECTION SYSTEM

The project deals with the design of equipment to protect and control

the motor from "oltage swage, o"er temperature through G&5. /ll the

abo"e parameters are sensed by the micro controller 12c34 through the

comparators and it transmit by G&5. The sensors we ha"e used that L+%,

T-$%5 &T#%. The main part of the project is micro controller, for what



many industries, where the manpower cannot wor! in that field. f any one

problem will occur automatically motor is switch off and message is send to

the authori0ed person.


136/144

BLOCK DIAGRAM

)'%%$*T+% $%

)'%%$*T+% $% #LT/G$

&/G ))#5P/%/T#%

)#5P/%/T#% # $% T$5P$%/T'%$

)ontrol)ircuit

bu00er

G&5modem

5#T#% relay


137/144

IR BASED HOME AUTOMATION

The project is actually the design of an % based home

automations system, which can control the loads at home by

using "arious different frequencies for each equipment. -ere

each de"ice is allocated with each frequency. -ere the circuit

senses the selected switches at a remote place and accordingly

it acti"ates the high "oltage loads at different places. The

project finds its applications in controlling the industrial

de"ices from a remote place where it is dangerous to switch off

or on from the near by place .


138/144

L#)6 + /G%/5

TRANSMITTER

RECEIVER

*P'TP#%T

)'%%$*T+% $

% T%/*& .

P#W$%

L#/+

% %$)$%.

P#W$% &'PPL(

%$L/(

)


139/144

SECURITY BASED RFID TAG AUTOMATIC DOOR OPENING SYSTEM

The project deals with the design of a security system especially meant of

a %$&T )T$+ +##%&. ecause of the tremendous increase in the thefts

we are in a position to safeguard them through some methods. $"en the

mechanical loc! systems fail because they are easily brea!able without

ma!ing any huge noise. 5ore o"er *ow a days we need lot of security

systems in all !inds area. The security system "aries depends upon the

application Bpassword, finger and "oice etc,C &o we desire to do ta!e radio

frequency security system. The project has its own accuracy and has its

timing control i.e. based on the different timing delays which we ha"e

implemented in the mono stable multi "ibrator of the circuit. When the %:

recei"ed the door will automatically open using the micro controller.


140/144

BLOCKDIAGRAM:SECURITY BASED RFID TAG AUTOMATIC DOOR OPENINGSYSTEM

#'TP'TP#%T

)

P#W$%&'PL(

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%: tagreader

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5#T#% #: T-$+##%

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141/144

PC BASED FRE UENCY MEASUREMENT SYSTEM

The project is actually the design of an P) based

frequency measurement equipment. -ere the circuit senses therectified out is gi"en to the comparator, the comparator is act

as a analog to digital con"erter, the digital output is gi"en to

the P) through parallel port. The program which we ha"e used

@)A language. This "ery useful in industries.


142/144

L#)6 + /G%/5

ParallelP#%T P)

P#W$% &'PPL(

&tep down rectified /)"oltage

/J+con"erter


143/144

RFID BASED AUTOMATIC TRAIN STATION DISPLAY

This project deals with the design of an automatic control of a distantautomobile through o"er blue tooth communication. The project confines




controlled from the school 0one and hospital 0one.


144/144

L#)6 + /G%/57

&T/T #* *#.4

STATION NO.;

T%/ * &$)T #*

TF4#&) LL/T#%

%:/5PL : $%

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TF;#&) LL/T#%

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Documents

AUTOMATIC LPG GAS SENSING WITH ALARM