Preface: – Presently there are many types of cards available such as punch cards, magnetic cards, optical cards but all are having the disadvantage of performance degradation as we use them.
Other disadvantages are: –
- They can not store much information.
- They can not be read from a distance.
- They lose their data if placed under magnetic field or even on scratching.
- There is no security to protect card data whereas in our card this is achieved with the provision of passwords.
- There is no Re-Writable memory for temporary data storage such as railway reservation ticket.
The above-mentioned shortcomings are technical but there are user related problems also when one needs to handle a large number of cards at a time to obtain diverse information (Atm, Credit card, License, Voter Id. etc.). The user is highly inconvenienced as he is required to change over the cards frequently, so we have designed a card which combines information contained in a variety of cards. Since data is transferred using IR sensors so in many applications we can identify the user from a distance. We can also lock the data stored in card by using various passwords. Card can also store specific data in RAM for temporary use such as railway reservation, air bookings etc. we can also use the cards in automatic doors fitted with sensors which read the card from some distance and open the door only for authorized card holders.
BLOCK DIAGRAM
1. Card Unit: –
IR Sensors: – We are using here the infrared light as communication medium because of its low cost and better reception in short range communication. To make the receiver perform better it is designed to recognize the switching IR light of particular wavelength.
The wave length and switching frequency can be taken from the manufacturers data sheets
Buffer Amplifier: – The O\P of sensor does not have the current capacity to drive the microcontroller hence we use the buffer amplifier between sensor and micro controller.
Buffer Amp 2: – This section provides the current gain to signals coming from microcontroller.
Astable M.V.: – It generates the switching waveform to switch the IR LED on & off the frequency of the M.V. depends upon the sensor used.
Micro controller: – This is the part of card which stores the data in its EEPROM & also performs all the operations required for testing the incoming data & to decide the response of received data. It also controls the mode of serial communication and speed of communication.
2. PC Unit: –
For the pc unit all the blocks are same but instead of using microcontroller we use serial port of pc which follows the RS232 standard hence we use a Level Converter between port and Buffer Amp.
The first level converter converts the TTL signals in to RS232 signals & second level converter converts the RS232 signals to TTL signals. The conversion is necessary because the sensors & M.V. works on TTL logic.
3. Door unit: –
Here we implemented one utility of the card by opening the cabin door (in office) automatically as the authorized person come up to a certain distance from door, by reading his or her card from distance.
Now if the cards data does not match with door unit it sends the persons card number to PC & ask to open the door if operator press Y the door unit will open the gate.
To complete the door unit we require combining the following section as shown in block diagram.
Now we see that all the sections as same as we have discussed in previous blocks except that Relay & Beeper section. So we will discuss only this section. The door unit performs the two work one send data to call the specific data from card & read data from card through sensor. Now if persons card no does not match with unit it sends the pulses the beeper unit which produce the intermittent beep sound to indicate that door is not opened.
hi,
i m really interested in this project
i can have a go @ it if u can help me out by giving source codes for the microcontrollers…
eagerly wating 4 response
your project has helped me a lot in sorting out my project work which deals with automation and securization of electronic voting machine, i am really very much thank full to you.
Can you please me on the project details!!!!!!!!!!!!
please send me an email about the project
i want 2 do this project in final yr will u plz send me source code & details of project.
Hi,
I found your project excellent. I would like to do it as my main project for B Tech. Can you please give me the details.
This is an excellent idea………..
i wanna do dis stuff…..
plzz help me guide……..
i want to do this project in final yr. so will u plz send me source code & details of project………..
i want to do this project in Engineering final year. so can you please send me source code & details of project??? Thanks in Advance…
please can u send me the project source code and other details regarding it
it as soon as possible
i’ll be obliged
can u give the idea to access the card unit.More details are needed
can u give the idea to access the card unit?More details are needed
can u give the idea to access the card unit?
More details are needed
i liked your project ,can u send me all information about it at mane.narendra@gmail.com
I really want to implemet this can you please provide more details?
heyy cn u plss help me out with the details of ths project as early if possible…
thnkss..
regards.
i need more information about this project, i need the source code for the
controller
im interested in this project can u mail me the details
hi,
i m really interested in this project
i can have a go @ it if u can help me out by giving source codes for the microcontrollers…
eagerly wating 4 response
i m in B.E and intersted in this project..please give me detail information abt project.pls reply soon
hello.
im really intrested in this project…could you share more details about this project…ASAP
regards.
hello sir,
i am in B.E. and want to work on this project…could you give me more
details about the equipment specification.
pls reply soon.
Dear sir,
I really want to implemet this.Can you please provide more details?
hi i like this project very much.
i need more information about this project & i need the source code for the
controller
Sir,
this project seems to be very useful at college level.
Can u please elaborate hardware specifications
I would like to do this project So,give me more details asearly as possible.Thank U
i want to do this project,plz tell abt thi project&cirucuit diagram.
this project is really interesting one… i wish to do it as my final year project.. please give the source code for microcontollers… please
I am interested in your project can you give the details , it will help me for my project
Thanks & Regards
IMTIYAZ
hey the idea is relly nice..i would like to take this as my project
topic if possible..could you please mail me all the deatils to me..
hello sir,
I am the final year B.E student and am very much interested in working on
this project.cold you mail me all the details to me please…..
pls send me ckt and related data……so that i can implement it.
waiting 4 ur rply
Hi
I’m realy intrested in your project …can you send me the details
and the circuit digram please it will help me in my final year project.
thank you
i love the project idea n i m thnkhng of makng it my project.can u mail me the project details with its circuit diagram possible in one week
Thank u
Vidhi
I still hvnt recived ur mail…plz b as fast as possible
Dear Sir
pls give me the source code and project details…. I hope you that you will me all details about this project……
With regards
Sukesh
dear sir
excellent…
i would like to have the circuit diag and source code of the project.
hi sir
i am intrested to do this project.
so can u give me the details of this project.
thank u.
Daer Sir,
pls give me the source code and project details…. I hope you that you
will mail me all details about this project…
With best regards,
Rahul
sir,
pls mail me the circuit diagram,source code and other details about this project…
with regards,
arya
please mail me the circuit diagram,source code (hex file) and other details about this project…
with regards,
Usman
sir….
can we extend this card use for various pourposes such as voting card,ration card,driving lisence,gas card etc all embedded in a single,thus making as universal card…. plz give full idea of this with
diagram
with regards
Sir, I think it was a very interesting project.I am on my thesis now in college and I want to explore your ideas about this project…can you help by sending the source code of the microcontroller 8951? Thanks a lot..
Regards
-Bryan
Sir, i am interested to do this project… can u help me to do this
project………. can u mail me the program & more details about your
project……….
sir can u plz send me the details of this project
Can you please give me the code and details of program..
it will help me in my project
please send me the codes for this project and other related information…soon as possible…
i m interested in doing this project.can you please send me the hardware
details and the source code of the microcontroller.
hihhh, what a ossom project , i am interested in this project please does you send me all the more required details abut this project
and coding of 89c51
sir i am interested in this project so plz send me the simple block diagram of this project