Automatic Fare Collection

8/2/2019 Automatic Fare Collection

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Automatic Fare Collection

For

Buses


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Modules Of The Machine

Machine A :- The machine at the entrance

gate of the bus.

Machine B :- At the exit of the bus. Machine C :- Recharging Machine.

Smart Card


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EXPLANATION OF THEMODULES

MACHIN

EA

Machine at the entrance.

It is fitted with Radio Frequency based

transmitter receiver which operates at

433Mhz frequency.

This machine interacts with the users Smart

Card and receives the user identity which is a8-bit code


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This machine is embedded with

PIC 16F877A microcontroller of Microchip

family.


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MACHINE B

It is similar in design as Machine A but fitted

at the exit end of the bus.

This machine is also fitted with transmitterreceiver which is used to take the final

reading from the transducer.


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MACHINE C

This machine is used for recharging the

Smart Card.

Similar in design with Machine A andMachine B


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WORKING

User touches his Smart Card to the Machine A at

the entrance of the bus.

Identity of the users Smart Card is transmitted by

the card and received by the Machine A. Identity and Balance is verified.

Current reading of the Odometer is updated on the

card and the user is provided access.

At the terminating end user touches the Smart Card

to the Machine B at the exit gate.


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Now the current reading of odometer isupdated in another variable.

Difference between both the reading is

calculated and according to the fixed rate

charge is deducted from the balance of theuser and updated in the card.


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POWERSUPPLY

R17

1KC5

100UF,35V D3

LED

U5LM7805/TO

1

2

3VIN

G

N

D VOUT

SW3

SW OCTAL

1 2 3

456

C8

100UF,16V

C7

0.1UF

GND

C6

0.1UF

J7

CON2

1

2

D2

1N4007

VCC


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PROCESSING MODULE

U1

16F877A

1

23

4

567

89

10

1112

1314

15

1617

18 19

2021

22

2324 25

26

2728

2930

31

3233

343536

37

3839

40MCLRA0

A1A2

A3

A4

A5E0

E1

E2VDD1

VSS1XTL1

XTL2

RC0

RC1RC2

RC3 RD0

RD1RD2

RD3

RC4

RC5 RC6

RC7

RD4

RD5RD6

RD7VSS2

VDD2

RB0RB1

RB2

RB3

RB4RB5

RB6RB7

R16 1K

VCC

SW2 SW PUSHBUTTON

J2

CON4

1

23

4

R11

1K

LS1

BUZZER

1

2

Q5BC547

1

2

3

J3

CON4

1

234

R1 1K

Y1

CRYSTAL

Q6

BC547

1

2

3

C11

0.1UF

GND

GND

U2

HT648L

9

11

1314

15

1617

1819202122

231

23

4

56

7

8

10

24

12

DIN

OSC1

A0

A1

A2A3

A4

A5A6

A7

A8A9

D10

D11D12

D13

D14D15

D16

D17

VT

OSC2

VDDVSS

J6

CON4

12

34

GND

VCC

R12

470E

C1210UF,16V

C9

10UF,16V

C1

15PF

R4 1K

Q1BC547

1

2

3

D1

LED

C3

0.1UF

R2 1M

R5

1K

R13

1K

C4

10UF,16V

VCC

Q3

BC547

1

2

3

GND

R6

470E

VCC

J5

CON16

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

R3

1M

U3

HT640

12

3

45

6

78

9

10

11

12

13

14

1516

1718

19

2021

22

23

24

D1

D2

D3D4D5

D6D7

DOUT

TE

OSC1

OSC2

GND

A0A1

A2

A3A4

A5

A6A7A8

A9

D0

VCC

R14

470E

C10

0.1UF

C2

15PF

R9

1K

GND

R1510K

1 2

3


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8-BIT ENCODER


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8-BIT DECODER


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TRANSMITTER RECEIVERMODULE


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EXPLAINATION OF SCHEMATIC

DIAGRAM

HT-640 8-Bit Encoder is connected to Port C of

Micro Controller.

HT-648L 8-Bit Decoder is connected to Port D of

Micro Controller. Transmitter module is connected to A.0 through a

transistor BC547.

Output of Encoder (Serial Data) is connected to the

Input data pin of transmitter.

Buzzer is connected to A.1through a transistor

BC547.


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Transmitted data is received by the receiver

which is connected to controller at Port Dthrough Decoder.

LCD is connected at Port B of controller

which is used to display information.

a) Identity verification.

b) Balance and odometer reading.

c) Fare deducted.

d) Distance traveled.


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SPECIFICATIONS

INPUT VOLTAGE : +12 Volts

OPERATING VOLTAGE : +5 Volts

CLOCK FREQU

EN

CY : 20 Mhz TRANSMISSION AND

RECEPTION FREQUENCY: 433 Mhz

ENCODER-DECODER :8-Bit


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LAYOUT


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SOFTWARE USED

For circuit designing : Orcad 9.1

For programming : PIC C Compiler

Assembler : Microchip Assembler

Documents

Automatic Fare Collection