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could u please explain wat u actually want to make, and could u provide the details like how many cars u want to park and up to how many levels
actually my project is multi storage car parking system.which is based on 8051 microcontroller.in this project we will make 3 floor and each floor contain atleast 10 cars.third floor for vip section which access through password matching which is stored in internal RAM memory of 8051.
we also use lift to carry the car on each floor.their is IR sensor at each floor to sense the headlight of car for opening of lift.i need code for this project in ‘c’ language.
actually i am planning too the car parking project: it has a code detector of 12 bits after matching the code the motor will respond and after certain point there will be IR. when car crosses the IR doors will again closed. also to represent the project in a better way i am thinking a track on which my car will move.So any suggestions for that?
well udit your idea first of all is not new ……..the thing is this idea can be easily implememented BY using plc
ladder diagram logic i have made it on ladder logic however the microcontroller can be little complecated
hi freinds..i have the code of the car parking system.. with some different from your design …but i will provide the code in coming 48 hrs… plz wait …and also type the whole deatail of your project aim and give the details of all sensors using by you?
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pls can u help me by sending d circuit diagram to me pls on below email id
Hi Poonam,
Share your schematics to get help on code. Without circuit disgrsm it is difficult to implement the logic in code.
6.1 MAIN PROGRAM
#include<reg51.h>
#include “liftcontrol.h”
#include “liftapp.h”
#include “lcd.h”
#include “delay.h”
#include “visitor.h”
#include “display.h”
#include “rtc.h”
sbit sw0 =P0^0;
sbit sw1 =P0^1;
sbit sw2 =P0^2;
sbit sw3 =P0^3;
int main()
{
unsigned char time[]=” : : “; //buff for storing time
unsigned char date[]=” / / “; //buff for storing date
unsigned char time_date[]={0x30,0x15,0x03,0x08,0x06,0x10};//(min,hr,day,date,month,yr)
unsigned char lftup,lftdown;
unsigned char engn,exgn,enfrst,exfrst;
engn =1;
exgn =1;
enfrst =1;
exfrst =1;
lftup =1;
lftdown =1;
init_rtc(&time_date);
while(1)
{
IE =0X85;
IT0 =1;
IT1 =1;
clear();
Read_RTC_Time(&time);
clear();
lcd_pnt(time);
MSdelay(1000);
Read_RTC_Date(&date);
clear();
lcd_pnt(date);
MSdelay(1000);
clear();
visitordisplay();
MSdelay(1000);
clear();
lcd_pnt(“PRESS SWITCH “);
MSdelay(1000);
clear();
engn =sw0;
exgn =sw1;
enfrst =sw2;
exfrst =sw3;
displayled(engn,exgn,enfrst,exfrst);
clear();
lcd_pnt(“USE LIFT”);
MSdelay(1000);
lftup =sw0;
lftdown =sw1;
liftcontrol(lftup,lftdown);
}
return 0;
}
6.2 MODULE FOR THE OPERATION OF RTC
/*rtc.c*/
#include<reg51.h>
#include<stdio.h>
#include <stdlib.h>
#include”rtc.h”
#include”i2c.h”
unsigned char RTC_ARR[7];
void init_rtc(unsigned char *val)
{
ReadRTC(&RTC_ARR[0]);
RTC_ARR[0] = RTC_ARR[0] & 0x7F; // enable oscillator (bit 7=0)
RTC_ARR[1] = val[0]; // minute = 59
RTC_ARR[2] = val[1]; // hour = 05 ,24-hour mode(bit 6=0)
RTC_ARR[3] = val[2]; // Day = 1 or sunday
RTC_ARR[4] = val[3]; // Date = 30
RTC_ARR[5] = val[4]; // month = August
RTC_ARR[6] = val[5]; // year = 05 or 2005
WriteRTC(&RTC_ARR[0]); // Set RTC
}
void Read_RTC_Time(unsigned char *time)
{
ReadRTC(&RTC_ARR[0]);
time[0]=bcd_acii1(RTC_ARR[2]); //geting MSB and LSB and storing it in
time[1]=bcd_acii2(RTC_ARR[2]); // date buffer
time[3]=bcd_acii1(RTC_ARR[1]);
time[4]=bcd_acii2(RTC_ARR[1]);
time[6]=bcd_acii1(RTC_ARR[0]);
time[7]=bcd_acii2(RTC_ARR[0]);
}
void Read_RTC_Date(unsigned char *date)
{
date[0]=bcd_acii1(RTC_ARR[4]); //geting MSB and LSB and storing it in
date[1]=bcd_acii2(RTC_ARR[4]); // date buffer
date[3]=bcd_acii1(RTC_ARR[5]);
date[4]=bcd_acii2(RTC_ARR[5]);
date[6]=bcd_acii1(RTC_ARR[6]);
date[7]=bcd_acii2(RTC_ARR[6]);
}
unsigned char bcd_acii1(unsigned char val)
{
unsigned char lc[]={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’};
unsigned char r,temp,tfr;
r= val;
temp=(r/0x10); //taking MSb
tfr=(lc[temp]);
return(tfr); //returning obtaind MSB
}
unsigned char bcd_acii2(unsigned char dat)
{
unsigned char lc[]={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’};
unsigned char val1,temp1,tfr1;
val1=dat; //geting the LSB
temp1=val1%0x10;
tfr1=(lc[temp1]); //returning LSB
return(tfr1);
}
/*i2c.c*/
#include<reg51.h>
#include<stdio.h>
#include”intrins.h”
#include”I2C.h”
#define ACK 1
#define NO_ACK 0
#define SLAVE 0xD0
#define WRITE 0x00
#define READ 0x01
#define ERR_ACK 0x01
unsigned char i;
sbit SCL = P3^7; // connect to SCL pin (Clock)
sbit SDA = P3^6; // connect to SDA pin (Data)
void Start(void) //start SDA and SCL
{
SDA = 1;
SCL = 1;
_nop_();_nop_();
SDA = 0;
_nop_();_nop_();
SCL = 0;
_nop_();_nop_();
}
void Stop(void) //stop bit for SDA
{
SDA = 0;
_nop_();_nop_();
SCL = 1;
_nop_();_nop_();
SDA = 1;
}
void WriteI2C(unsigned char Data) //passing write code to device
{
for (i=0;i<8;i++)
{
SDA = (Data & 0x80) ? 1:0;
SCL=1;SCL=0;
Data<<=1;
}
SCL = 1;
_nop_();_nop_();
SCL = 0;
}
unsigned char ReadI2C(bit ACK_Bit) //readiong ACk from rtc or eeprom
{
unsigned char Data=0;
SDA = 1;
for (i=0;i<8;i++)
{
SCL = 1;
Data<<= 1;
Data = (Data | SDA);
SCL = 0;
_nop_();
}
if (ACK_Bit == 1)
SDA = 0; // Send ACK
else
SDA = 1; // Send NO ACK
_nop_();_nop_();
SCL = 1;
_nop_();_nop_();
SCL = 0;
return Data;
}
void ReadRTC(unsigned char * buff) //reading data from RTC
{
Start();
WriteI2C(0xD0);
WriteI2C(0x00);
Start();
WriteI2C(0xD1);
*(buff+0)=ReadI2C(ACK); // Second and incrimenting
*(buff+1)=ReadI2C(ACK); // Minute
*(buff+2)=ReadI2C(ACK); // hour
*(buff+3)=ReadI2C(ACK); // Day
*(buff+4)=ReadI2C(ACK); // date
*(buff+5)=ReadI2C(ACK); // month
*(buff+6)=ReadI2C(NO_ACK); // year
Stop();
}
void WriteRTC(unsigned char *buff) //writing data to RTC
{
Start();
WriteI2C(0xD0);
WriteI2C(0x00);
WriteI2C(*(buff+0)); //writing sec and inc
WriteI2C(*(buff+1)); //wirting min and inc
WriteI2C(*(buff+2)); //wirting hr and inc
WriteI2C(*(buff+3)); //wirting day and inc
WriteI2C(*(buff+4)); //wirting date and inc
WriteI2C(*(buff+5)); //wirting month and inc
WriteI2C(*(buff+6)); //wirting yr
Stop();
}
6.3 MODULE FOR VISITOR COUNTER
/*visitor.c*/
#include<reg51.h>
#include “visitor.h”
#include “lcd.h”
#include “delay.h”
unsigned int m,k,l,i;
extern unsigned int count=20;
unsigned char visitor[12] ={“TOTAL AVAL “};
unsigned char number[] ={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’};
void visitordisplay()
{
k =count/10;
l =count%10;
clear();
for(i=0;i<12;i++)
{
lcd_pntc(visitor);
MSdelay(250);
}
lcd_pntc(number[k]);
MSdelay(250);
lcd_pntc(number[l]);
MSdelay(500);
return;
}
void enter (void) interrupt 0
{
EA =0;
count–;
if(count<0)
{
k =count/10;
l =count%10;
clear();
for(i=0;i<12;i++)
{
lcd_pntc(visitor);
MSdelay(250);
}
lcd_pntc(number[k]);
MSdelay(250);
lcd_pntc(number[l]);
MSdelay(500);
MSdelay(250);
}
EA=1;
}
void exit (void) interrupt 2
{
EA =0;
count++;
if(count>20)
{
k =count/10;
l =count%10;
clear();
for(i=0;i<12;i++)
{
lcd_pntc(visitor);
MSdelay(250);
}
lcd_pntc(number[k]);
MSdelay(250);
lcd_pntc(number[l]);
MSdelay(500);
MSdelay(250);
}
EA =1;
}
6.4 MODULE FOR LCD DISPLAY
/*lcd.c*/
#include<reg51.h>
#include<intrins.h>
#include”lcd.h”
sfr ldata=0x90; //difineng port1 for data
sbit rs=P2^0; //seting rs at p2.0
sbit rw=P2^1; //seting rw at p2.1
sbit en=P2^2; //seting en at p2.2
extern int fst;
extern int gn;
extern unsigned int m;
void MSdelay(unsigned int item);
void lcdcmmd(unsigned char mybyte)
{
ldata=mybyte;
rs=0;
rw=0;
en=1;
MSdelay(1);
en=0;
return;
}
void lcd_pnt(unsigned char *Ldat)
{
unsigned char *tmp;
tmp=Ldat;
while(*tmp!=’ ’)
{
ldata=*tmp;
rs=1;
rw=0;
en=1;
MSdelay(1);
en=0;
tmp++;
}
return;
}
void clear(void)
{
lcdcmmd(0x38); //2 line 5×7 matrix
MSdelay(5);
lcdcmmd(0x80); //force cursor to begin from 2nd line
MSdelay(5);
lcdcmmd(0x0e); //display on,cursor blinking
MSdelay(5);
lcdcmmd(0x01); //clear display screen
MSdelay(5);
lcdcmmd(0x06); //inc cursor to right
MSdelay(5);
return;
}
void lcd_pntc(unsigned char Ldat1)
{
ldata=Ldat1;
rs=1;
rw=0;
en=1;
MSdelay(1);
en=0;
return;
}
void liftdisplay()
{
unsigned char num[] ={‘0′,’1’};
unsigned char line[14] ={“LIFT ON FLOOR “};
int i;
for(i=0;i<14;i++)
{
lcd_pntc(line);
MSdelay(250);
}
lcd_pntc(num[m]);
MSdelay(500);
return;
}
void grndlcd()
{
unsigned char num[] ={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’};
unsigned char gndline[12] ={“GND AVAL “};
int i;
int m,n;
m =gn/10;
n =gn%10;
for(i=0;i<12;i++)
{
lcd_pntc(gndline);
MSdelay(250);
}
lcd_pntc(num[m]);
MSdelay(250);
lcd_pntc(num[n]);
MSdelay(500);
return;
}
void frstlcd()
{
unsigned char frstline[12] ={“FIRST AVAL “};
unsigned char num1[] ={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’};
int j;
int m,n;
m =fst/10;
n =fst%10;
for(j=0;j<12;j++)
{
lcd_pntc(frstline[j]);
MSdelay(250);
}
lcd_pntc(num1[m]);
MSdelay(250);
lcd_pntc(num1[n]);
MSdelay(500);
return;
}
6.5 MODULE FOR SWITCH
/*display.c*/
#include <reg51.h>
#include”display.h”
#include”lcd.h”
#include”delay.h”
extern int fst=10;
extern int gn =10;
void displayled(unsigned char engn,unsigned char exgn,unsigned char enfrst,unsigned char exfrst)
{
if(((engn==1) && (exgn==1)) && ((enfrst==1) && (exfrst==1)))
{
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
else
{
if(((engn==0) && (exgn==1)) && ((enfrst==1) && (exfrst==1)))
{
gn–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==0)) && ((enfrst==1) && (exfrst==1)))
{
gn++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==0) && (exgn==0)) &&((enfrst==1) && (exfrst==1)))
{
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==1)) && ((enfrst==0) && (exfrst==1)))
{
fst–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==0) && (exgn==1)) && ((enfrst==0) && (exfrst==1 )))
{
gn–;
fst–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==0)) && ((enfrst==0) && (exfrst==1))
{
gn++;
fst–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==0) && (exgn==0)) && ((enfrst==0) && (exfrst==1))
{
fst–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==1)) && ((enfrst==1) && (exfrst==0)))
{
fst++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
else
{
if(((engn==0) && (exgn==1)) && ((enfrst==1) && (exfrst==0))
{
gn–;
fst++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==0)) &&((enfrst==1) && (exfrst==0)))
{
gn++;
fst++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==0) && (exgn==0)) &&((enfrst==1) && (exfrst==0)
{
fst++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
else
{
if(((engn==1) && (exgn==1)) &&((enfrst==0) && (exfrst==0)))
{
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==0) && (exgn==1)) &&((enfrst==0) && (exfrst==0)))
{
gn–;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
if(((engn==1) && (exgn==0)) &&((enfrst==0) && (exfrst==0)
{
gn++;
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}
Else
{
grndlcd();
MSdelay(250);
clear();
frstlcd();
MSdelay(500);
}}}}}}
}}}}}
}}}}
return;
}
6.6 MODULE FOR THE OPERATION OF MOTOR
/*liftcontrol.c*/
#include <reg51.h>
#include “lcd.h”
#include”delay.h”
#include”liftapp.h”
#include”liftcontrol.h”
extern unsigned char c=1;
unsigned char k;
extern unsigned int m=0;
void liftcontrol(unsigned char lftup,unsigned char lftdown)
{
if((lftup==1) && (lftdown==1))
{
clear();
liftdisplay();
MSdelay(1000);
}
else
{
if((lftup==0) && (lftdown==1))
{
k=steppercond(c);
if(k==0)
{
clear();
liftdisplay();
MSdelay(1000);
motoranti();
MSdelay(1000);
motorstop();
m++;
clear();
liftdisplay();
MSdelay(1000);
c++;
}
Else
{
clear();
liftdisplay();
MSdelay(1000);
motorclk();
MSdelay(1000);
motorstop();
c++;
clear();
m–;
liftdisplay();
MSdelay(1000);
motoranti();
MSdelay(1000);
motorstop();
clear();
m++;
liftdisplay();
MSdelay(1000);
c++;
}
}
Else
{
k=steppercond(c);
if(k==1)
{
clear();
liftdisplay();
MSdelay(1000);
motorclk();
MSdelay(1000);
motorstop();
clear();
m–;
liftdisplay();
MSdelay(1000);
c++;
}
else
{
clear();
liftdisplay();
MSdelay(1000);
motoranti();
MSdelay(1000);
motorstop();
c++;
clear();
m++;
liftdisplay();
MSdelay(1000);
motorclk();
MSdelay(1000);
motorstop();
clear();
m–;
liftdisplay();
MSdelay(1000);
c++;
}
}
return;
}
/*liftapp.c*/
#include <reg51.h>
#include”liftapp.h”
#include”liftcontrol.h”
#include”delay.h”
sbit in1 =P3^1;
sbit in2 =P3^4;
sbit en1 =P3^0;
void motorstop()
{
in1 =0;
in2 =0;
en1 =0;
return;
}
void motorclk()
{
in1 =1;
in2 =0;
en1 =1;
return;
}
void motoranti()
{
in1 =0;
in2 =1;
en1 =1;
return;
}
unsigned char steppercond(unsigned char c)
{
if(c%2==0)
return(1);
else
return(0);
}
}
6.7 MODULE FOR DELAY
/*delay.c*/
#include<reg51.h>
void MSdelay(unsigned int item)
{
unsigned int i,j;
for(i=0;i<item;i++)
for(j=0;j<275;j++);
can u help me put with hte ladder diagram of multi level car parking system……..
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