go to main index know about us who we are and what we are provide ? we provide training on how to reach us send e-mail us
   

 

ERP SYSTEM.

 

TRAFFIC PROBLEM SOLVED BY THE  ERP

 

In A country like India, the only way to  manage the ever growing traffic is to switch to electronic road pricing.

 

The theory of road pricing is well known to economists. It dates back to the famous two road example in  Professor Arthur Pigou’s ‘ Economics of welfare book publish in 1920. If a tax is imposed on one of the two roads, the speed and the travel time would be better on the toll road than on the free road and the result would be increased efficiency, It is  very clear that even in those goof old days traffic was a big issue to deal with. Of late traffic and therefore pollution, has become difficult to tackle world over as the population of vehicle  is increasing at an alarming rate.

 

One traffic management system that has come to the rescue is electronics road pricing. Recently at signapore, I happened to see the system and found it is very interesting to tax people for their luxury and encourage them to utilize public transport to the maximum extent.

 

By doing this the number of people who use vehicle has relatively reduced use vehicle has relatively reduced and the traffic problem is solved considerably. Even during the peak hours, the average speed is around 65 kmph, which is something to boost of.

 

IN THIS PROJECT.

 In this project we use one smart card device  and this smart card reading system is fitted with the microcontroller 89c51 with lcd display. When we enter a  card in the microcontroller then microcontroller  display the amount of the  card. Now when car is move on the road and ERP system is in operation then sensor attach to the car is detect the amount from the car. If the balance in the card is zero then car signal is transmit from the car and a chalan sent  to this car owner display on LCD

 

Main part of this project is.

 

CARD READING DEVICE.

 

MICROCONTROLLER INTERFACE.

 

LCD INTERFAQCE.

 

 

OUR COMPLETE PROJECT IS TO BE DIVIDED IN TO THESE  FOUR PARTS.

 

 

CARD READING DEVICE.

 

In the card reading device we use 4 optocoupler components. Here in the project we use MOV 7811 optocoupler device. These optocoupler devices are slotted optocoupler. We use only four optocoupler to demonstrate the concept of  card system. Actual card reading machine are very costly and this machine is readymade available from the market. For out project we want to explain the technology so we use self made card reader. For this self made card reader machine we use  hole based card system. When we enter a hole based card then  opto-coupler sense a card and at this time otpocoupler send a signal to microcontroller directly. Microcontroller  sense the card and  at this time as per the card value micrcontroller send a value of RS 50 to 100 in the  processor. Processor recognize this number.

 

Transmissive Optical Sensor without Aperture

Description

 

This device has a compact construction where the emitting-light sources and the detectors are located face-to-face on the same optical axis. The operating wavelength is 950 nm. The detector

consists of a phototransistor.

 

Applications

 

Contact less opto electronic switch, control and counter

 

Features

 

Compact construction

No setting efforts

2 case variations

 Polycarbonate case protected against

ambient light

Current Transfer Ratio (CTR) of typical 2.5%

 

OUR NEXT PART OF THIS PROJECT IS MICROCONTROLLER.

 

HERE IN THIS PROJECT

 

89c51 micro controller is a main ic of this project.  To drive the lcd, to check the balance amount and  balance comparison all this activity is done in the  this ic.  Here we use micro controller for this purpose. We wrote a program for this ic. Program is to be written in the ASM codes and then this code  is converted into hex code with the help of the assembler. In this project we use 8051 ide software to assemble the ASM codes into hex code.  Once the code is converted into hex code then  we transfer this code in the blank ic with the help of program kit connected with the computer. After transfer the hex code in the  blank IC our  IC is ready for th

 

 

LCD INTERFACE.

 

In this project we use  lcd for output device. Here in this project we use 2 by 16 lcd for the output device. LCD drive by the  microcontroller directly  with the port p0. In this project we use 8 data line for the data transfer from the microcontroller to LCD. Our processor inside the controller is 8 bit processor, so we use parallel line transfer from microcontroller to LCD. Three control line R/S, R/W, AND ENABLE is also provided by the microcontroller itself.

 

Lcd display a welcome message in the screen, when the project is wake up . After this LCD  show’s the recharge value of the money Then display the balance in first line and in the second  line  and also show the unit consumption and pulse counter logic.

 

If the balance is in the processor and it also shows in the LCD then  output signal is available  from the microcontroller. Microcontroller deliver a small signal to drive a relay (EMR) electromagnetic relay. Relay interface with the  microcontroller is on  and   work as a contactor system and  pass the  main supply to the  house. As the balances is decreased and more unit is consumer and when balance is zero then   there is no output is available.

 

In this project we use lcd as a main output device. Here in this project we use 2 by 16 LCD as a main output device. . LCD connect to the port  P0 of the microcontroller.

 

 

RS BIT P2.6

RW BIT P2.5

E BIT P2.7

FL BIT P0.7

 

LCD EQU P0

 

Here we use 8 data line from the processor to drive a data to the lcd. Along with this data line we use three control signal to the lcd to control the function of the lcd. These three function are RS, RW and Enable.

 

If an 8-bit data bus is used, the LCD will require a total of 11 data lines (3 control lines

 

 

 

 

 

 

 

 

Component List

 

 COST

 

 

S.No.

Item

Quantity

Rate/Unit

 

 

1

MCU 89C051

0

80

 

 

 

RF module

1

600

 

 

 

HT12E

 1

 35

 

 

 

HT12D

 

 

 

 

 

IC91214

1

25

 

 

3

IC4049

0

25

 

 

4

IC8870

1

40

 

 

5

IC555

0

10

 

 

6

IC817

1

15

 

 

7

IC3021

0

15

 

 

 

Push to On Sw

3

12

 

 

8

SOLDERING WIRE

1

25

 

 

9

SOLDERING IRON

1

120

 

 

10

FLUX

1

10

 

 

11

CONNECTING WIRE

1

50

 

 

12

TR548

2

2

 

 

13

TR558

0

2

 

 

14

RESISTENCES

20

0.5

 

 

15

CAPACITORS

 

 

 

 

 

1000µf

2

10

 

 

 

100µf

1

5

 

 

 

470µf

4

5

 

 

16

DIODES

8

1

 

 

17

LED

8

1

 

 

 

Crystal 12MHz

2

25

 

 

18

IC BASE

3

5

 

 

 

IF set

120

1

 

 

19

IC 7805 Volt. Reg

2

15

 

 

20

TRANSFORMER 9 V

1

30

 

 

21

SOCKETS

3

10

 

 

22

RELAY 9V

3

25

 

 

23

MILER CAP

5

3

 

 

24

CRYSTAL 3.579545

2

20

 

 

25

IC136

2

15

 

 

26

HOLDER

2

10

 

 

27

PLY BOARD

1

100

 

 

28

TAPE ROLL

1

10

 

 

29

Copper Clad Board

1

100

 

 

30

FeCl3

1

100

 

 

31

ZENER

0

3

 

 

 

Screws/bolt

2

2

 

 

 

Betteies

1

15

 

 

 

TOTAL COST

 

 

 

 

 

Hardware required-

 

·        8051 programmer universal kit

·        CRO 20 Mhz

·        Digital multimeter

 

Software required:

·        Keil software- Microvision 2- we will make program in Assembly Language. After compilation  we will conver project.asm file in to project.hex file

·        ORCAD for PCB design 10.5 – we can design our schematic circuit diagram and Layout of PCB in orcad software

·        Proteus for simulation 7.4 version

ADVANTAGES

·        Low cost

·        Reliable

·        Portable

·        Flexible  due to microcontroller

·        Easy to use- system is very easy to understand

 

 

Bibliography: