Green house intelligent control system.pdf

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Green house intelligent control system

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 BILAL Malik

 A Au ugust 13, 2014  PIC microcontrollers  30 Comments

Green house house intelligent control system is designed to protect protect the plants plants from more cool c ool and hot weather and additional addit ional control system is included to save save power by making fans and lights automatically turn on and off with the help of intelligent control system. In this project project,, the intelligent control system is developed using microcontroller and sensors. Green house system has a very important use now a days in the agriculture field.Some plants need the specific amount of water for their proper growth growth and more productivity, therefore therefore farmer should should provide them the proper quantity of water. But it’s difficult for the farmer to get a estimation for quantity of moisture in soil. But in this project moisture sensor is used to to provide this facility with a intelligent control system.

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Page Contents [hide]

video, pictures, code and schematics. Please

0.1 Main functionality of project

support our efforts.

0.1.1 LM35 Temperature sensor : 0.1.2 Digital temperature sensor using pic microcontroller 0.1.3 Light sensor : 0.1.4 HS1101 Humidity sensor : 0.1.5 Digital humidity sensor using pic microcontroller 0.1.6 Moisture sensor : 0.2 Simulation : 0.2.0.1 Simulation diagram with status of devices : 0.3 Complete circuit diagram : 0.3.0.1 PCB diagram of schematic of green house system :

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0.3.0.2 Applications and future advancements :

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1 Code :

MAIN FUNCTIONALITY OF PROJECT Block diagram below shows the main functionality of green

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house intelligent control system. Four sensors are used to measure different parameters of green house system which

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includes temperature sensor, light sensor, humidity sensor, moisture sensor. Four relays are used to control four respective

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loads as given below:

LM35

SENSOR :

When

temperature

becomes

greater

than

25

degree,

respective relay become energize to operate the fan and when temperature becomes lower than 20-degree relay turn off the fan

by

getting

PIC16F877A

control

signals from

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microcontroller.

microcontroller analog to digital converter

module is used to read temperature value and to operate relay

Microcontrollers 6,145 likes

which in turn operate the fan. To know more about temperature sensor and its working, go through the following article : Like Page

DIGITAL

TEMPERATURE

SENSOR

USING

PIC

MICROCONTROLLER

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SENSOR : Light dependent resistor is used as a light sensor. LDR is kind of variable resistor which resistance changes with the change in light intensity. So LDR resistance is converted into intensity of light by using LDR resistance and intensity of light formula.

RELATED POSTS

PIC16F877A microcontroller is used to measure intensity of

Digital humidity

light. When intensity of light fall under a certain limit,

sensor using

microcontroller provide signal to relay to turn on light and when

PIC

http://microcontrollerslab.com/green-house-intelligent-control-system/

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intensity of light raise upto a certain limit , microcontroller

microcontroller …

provide signal to relay to turn off fan. So light sensor is used to add automatic light switching functionality in the green house

alternating

system, if you don’t have much money to afford a gardener,

current

then you can use green house intelligent control system to

measurement

make your green house self-operating.

using pic microcontroller …

HS1101 HUMIDITY SENSOR :

Speed control

Humidity sensor is used to check level of moisture in air

of DC motor

Because greater or less humidity level in air can also effect

using

growth of plants. Humidity sensor HS1101 is used to measure

microcontroller

level of moisture in air. HS1101 is a capacitative type humidity

part 2 …

sensor, So additional circuit is used to convert change in capacitance of humidity sensor into frequency and frequency

Digital

is measured with the help of microcontroller. Measured

Ammeter

frequency is converted back into humidity using a algorithm in

circuit using pic

microcontroller programming. To know more about humidity

microcontroller …

sensor and its working, I suggest you to go through following

Speed control

article :

of DC motor

DIGITAL

HUMIDITY

SENSOR

USING

using PIC

PIC

microcontroller

MICROCONTROLLER

part 1 … If

humidity

becomes

greater

than

a

specified

limit,

microcontroller gives a signal to respective relay to turn on

MULTIPLE

sprinter which is used to maintain a humidity level in the air and

INPUT CHARGE

when

CONTROLLER

humidity

level

comes

back

to

a

normal

limit,

microcontroller gives a signal to respective relay to turn off sprinter.

MOISTURE SENSOR :

FOR RENEWABLE ENERGY … metal detector robot using pic

Moisture sensor is used to measure level in soil. A wire strip is used to measure moisture of soil. Wire strip has a specific resistance at specific moisture, but when moisture increases,

microcontroller …

the resistance of wire strip starts decreasing and similarly when

DS18S20

moisture decreases, resistance become higher. PIC16F877A

interfacing with

used to measure moisture level and to turn on and off water

pic and avr

pump with the help of relay.

microcontroller …

Block diagram of complete project is shown below:


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block digram of green house system

SIMULATION : For simulation purpose, I have connected four LED’s instead of real load to check project working and code. LCD is used to display digital values of temperature, light , humidity and moisture. LCD also display the status of devices either they are on or off. As shown in the figure below.

simulation of green house system SIMULATION DIAGRAM WITH STATUS OF DEVICES :


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Simulation diagram with status of devices In simulation I have used variable resistor for wire strip and pulse having different frequencies for humidity sensor. In above circuit diagrams : L : for light S : Sprint F : for fan P : for pump T : for temperature H : for humidity M : for moisture

COMPLETE CIRCUIT DIAGRAM : Complete circuit diagrams of green house intelligent control system and sensors are shown below :


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schematic of green house system In above schematic of green house system, blue arrow shows connection for senors and back arrow shows relay and lcd connection point. PCB DIAGRAM OF SCHEMATIC OF GREEN HOUSE SYSTEM :

PCB diagram of schematic of green house system APPLICATIONS AND FUTURE ADVANCEMENTS : So this project can be easily used in any green house system to make to self-operated and automatic control of devices. You can also add extra functionality in this project by adding wireless communication to send values of sensors and status of devices to someone which is not at remote location.

CODE : http://microcontrollerslab.com/green-house-intelligent-control-system/

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// LCD module connections sbit LCD_D7 at RB2_bit; sbit LCD_D6 at RB3_bit; sbit LCD_D5 at RB4_bit; sbit LCD_D4 at RB5_bit; sbit LCD_EN at RB6_bit; sbit LCD_RS at RB7_bit;



sbit LCD_D7_Direction at TRISB2_bit; sbit LCD_D6_Direction at TRISB3_bit; sbit LCD_D5_Direction at TRISB4_bit; sbit LCD_D4_Direction at TRISB5_bit; sbit LCD_EN_Direction at TRISB6_bit; sbit LCD_RS_Direction at TRISB7_bit; // End LCD module connections //********************LRD variables***************** int light= 0; char ldr[7]; char on[6]="On "; char off[7]="Off "; //************************temperature variables**** int temp; char temper[7]; //******************************frequency meter var int value,freq,humidity; char humid[7]; int moist=0; char moiste[7]; char fan_flag,pump_flag,light_flag,sprinkle_flag; //************************************************* void READ_temp(void) { temp = ADC_Read(0); temp = temp * 0.4887; if(temp>=35) { PORTD.F7=1; fan_flag=1; } else { PORTD.F7=0; fan_flag=0; } } void read_ldr() { unsigned int adc_value=0; adc_value=ADC_Read(1); light = 100 ‐ adc_value/10.24; if(light>=92) // SWITCH of the light when light is { http://microcontrollerslab.com/green-house-intelligent-control-system/

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PORTD.F6=0; light_flag=0; } else { PORTD.F6=1; light_flag=1; }

} void READ_MOISTURE() { moist= ADC_Read(2); moist= moist * 0.0048828125*1000; if(moist>=2000) { PORTD.f5=1; pump_flag=1; } else { PORTD.f5=0; pump_flag=0; } } void data_converstion(void) { inttostr(light,ldr); inttostr(temp,temper); inttostr(moist/50,moiste); IntToStr(humidity, humid); } void display1(void) { lcd_out(1,1,"L="); lcd_out(1,3, Ltrim(ldr)); Lcd_Chr_Cp('%'); Lcd_Chr_Cp(' '); lcd_out(1,11,"H="); lcd_out(1,13, Ltrim(humid)); Lcd_Chr_Cp('%'); Lcd_Chr_Cp(' '); lcd_out(2,1,"T="); lcd_out(2,3, Ltrim(temper)); Lcd_Chr_Cp(0xdf); Lcd_Chr_Cp('C'); Lcd_Chr_Cp(' '); lcd_out(2,11,"M="); lcd_out(2,13, Ltrim(moiste)); Lcd_Chr_Cp('%'); http://microcontrollerslab.com/green-house-intelligent-control-system/

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Lcd_Chr_Cp(' '); } void display2(void) {

Remember this is not a complete code, you can purchase complete

code

from

me

by

contacting

me

at

[email protected]

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About The Author we providing project services to students and industry from last 2 years and working as a freelancer. I also write technical articles related to electrical ,electronics, http://microcontrollerslab.com/green-house-intelligent-control-system/

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embedded and power electronics Engineering. Contact me if you need my project services. My email address: [email protected]

30 Comments josé AUGUST 15, 2014 muy buen proyecto… es un oroyecto muy interesante .. no se si podrias pasarme la informacion a mi correo por favor … gracias Reply



BILAL Malik AUGUST 15, 2014 Write your comment in English, I don’t understand your language. Reply

julio cesar AUGUST 16, 2014 good project y would like to be in contact with you… Reply

BILAL Malik AUGUST 16, 2014



thanks. sure you can contact me on my email ID bilalmalikuet@g Reply

idreesmuhamed OCTOBER 9, 2014 hello , can you send to me all details including the codes ? and thanks for you . Reply

M Saqib OCTOBER 18, 2014


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plz send code of “green house intelligent control system”. thanks Reply

QAMAR SHAIKH OCTOBER 19, 2014

HI, GR8 PROJECTS & SITE KEEP IT UP CAN U PLS SEND ME THE COMPLETE SIMULATION.CODE,CIRCUITS & PCB FOR GREEN HOUSE INTELLIGENT CONTROL SYSTEM GOD BLESS YOU REGARDS ALLAH HAFIZ QAMAR KSA Reply

umi farina NOVEMBER 10, 2014 hi, kindly can you email me your simulation, schematic, codes for this project? i’ll remember you in my prayers Reply

Henry NOVEMBER 25, 2014 This is an interesting topic and a must do for pic hobbyist. Good work Reply

Henry NOVEMBER 25, 2014 please i am interested in the project. Can i get the complete circuit and the source code? Thank you in anticipation Reply

jayr NOVEMBER 30, 2014 hello,,this project is so cool!! plz. can you send me your simulation, codes, schematic for this cool project,,,thanks and advance Reply


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atif mehmood DECEMBER 3, 2014

i like ur project . sir can u send me this project all . thk Reply

flexo DECEMBER 11, 2014 hi can you send me the complete schematics with the code thanks Reply

smwal DECEMBER 30, 2014 hi please Iwant complete cct and source code Reply

Javier H JANUARY 6, 2015 This is the project that i was looking for. Could You please send me all information about that. rgds Javier Reply

smwal JANUARY 11, 2015 this project is very good iwant learn about it Reply

Jony Nightfly JANUARY 13, 2015

Nice project, can you please provide schematic ,code and PCB of this project Best Regards Reply

joynal JANUARY 20, 2015 Hi, nice. can you send me code. with pcb Reply

Muremeri E.M. JANUARY 20, 2015 Good Project. I want to get the information. Reply


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najye JANUARY 25, 2015 very nice project thanks for your efforts can you sen me full project thank you Reply

faiz FEBRUARY 6, 2015

I like this project .can you send to me the code please. thank you Reply

smwal FEBRUARY 13, 2015 Can i convert frequency to volt by lm331 Reply

faiz MAY 10, 2015

I like to made this project but I can not download the code .can you send it to me .thank you Reply

omar MAY 10, 2015 thank you this nice project pleas can yoy send me the schematic and code. Reply

hailegebrel nigussie JUNE 11, 2015 how can change .c file to . hex file? Reply

hailegebrel JUNE 14, 2015 the code dose not convert to hex file ….. so what is the solution? Reply

ku_az JULY 31, 2015 Hi, i like this project.Can you send me all information about this project. Reply

Ei Ei Aung OCTOBER 23, 2015 http://microcontrollerslab.com/green-house-intelligent-control-system/

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I fall in love with this project…Can you send me all about it? Reply

Bilal Malik OCTOBER 23, 2015

Everything is given in project above. But of you want to purchase complete project contact me at [email protected] Reply

adugna JANUARY 8, 2016 This project is very important and helpful for those who are engineering spatially computer engineering . 10q for your effort to help us. Reply

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