RF Based Wireless Encryption and Decryption Message          transfer system for Military ApplicationsThe need for this pr...
Encrypted message:     At the receiving end the PIC microcontroller will then decode theReceived data and displays the mes...
Block Diagram                Transmitter Section                                          RF Transmitter                  ...
Receiver Section                                                Digital  RF Receiver                                   Out...
Receiver Section                                                Digital  RF Receiver                                   Out...
Receiver Section                                                Digital  RF Receiver                                   Out...
Receiver Section                                                Digital  RF Receiver                                   Out...
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Wireless encryption and decryption newRF Based Wireless Encryption and Decryption Message transfer system for Military Applications

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Wireless encryption and decryption newRF Based Wireless Encryption and Decryption Message transfer system for Military Applications

  1. 1. RF Based Wireless Encryption and Decryption Message transfer system for Military ApplicationsThe need for this project arises when we want the data communication tobe protected from others. This is highly essential in the military field andespecially during war times. Because during war periods when a particulararmy wants to send a message to remotely located units, which belong tothe same army, in between any person can trap the data when it istransmitted through wireless. Our aim of the project is to protect the data from the ensnares.To accomplish this, we have used a PC as a sender and PICmicrocontroller as a receiver station. The message to be sent is fed in tothe computer for different units. The computer will encode the data usinggenerating a duplicate Character for a real one.
  2. 2. Encrypted message: At the receiving end the PIC microcontroller will then decode theReceived data and displays the message on the display. Thecommunication takes place through a Wireless RF Transmitter andReceiver operating at 433.92 MHzwe can also use CRO at the transmitting point to view the encoded data.To ensure the security level at the receiving end we have a passwordprotection. Once the Message is received the unit will give an alarmmessage so that one can know that the message has arrived. The hemust enter the password through the keypad. If the password matchesthen he is allowed to view the data.
  3. 3. Block Diagram Transmitter Section RF Transmitter 434MHZ RS232
  4. 4. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display+5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
  5. 5. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display+5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
  6. 6. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display+5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
  7. 7. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display+5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm

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