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Secure Brief Case - Electronically activated lock

Discussion in 'General Electronics Discussion' started by craig power, Oct 21, 2016.

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  1. craig power

    craig power

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    Oct 21, 2016
    I an enquiring about the availability of an existing electronically activated briefcase with the following specifications or one that can be easily built

    • A lightweight portable briefcase / attaché case.

    • Fitted with a long life battery to power the case lock with an external power input point to cover the situation of an internal battery failure/ low voltage.

    • A Windows tablet computer mounted or inserted in one side. The windows computer must be fitted with an NFC reader capable of responding to the presence of a proximity card and mobile phone

    • A smart lock that locks and unlocks the briefcase in response to a message from the computer.
    • The Windows computer communicates with the lock by wire via the computer USB or virtual serial port

    Regards
    Craig Power - 0419 xxx xxx - Located in the Perth Area - Western Australia

    .
     
    Last edited by a moderator: Oct 21, 2016
  2. Alec_t

    Alec_t

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    Jul 7, 2015
    Like this?
    I can't help feeling that all the high-tech parts of the briefcase, such as the tablet, will make it an even more tempting target for thieves :D.
     
    Last edited: Oct 21, 2016
  3. BobK

    BobK

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    Jan 5, 2010
    A Windows tablet just to operate the lock mechanism? Sounds like a severe case of overkill. A microcontroller and bluetooth module would be more appropriate.

    Bob
     
  4. craig power

    craig power

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    Oct 21, 2016
    Thanks Bob
    The application is for an industrial purpose (security) where there are two locking commands provided. The first is to enable an authorised person to unlock / lock the briefcase and get access to the contents , the second command is an overlock command whereby other parties - one or several can overlock the briefcase when it has first been locked by the authorised person - thus preventing this person from unlocking the briefcase again until all secondary parties have removed their electronic lock from the briefcase. your suggestions on how to do this are most welcome.
     
  5. craig power

    craig power

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    Oct 21, 2016
     
  6. craig power

    craig power

    5
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    Oct 21, 2016
    Thanks Alec
    The application is for an industrial purpose (security) where there are two locking commands provided. The first is to enable an authorised person to unlock / lock the briefcase and get access to the contents , the second command is an overlock command whereby other parties - one or several can overlock the briefcase when it has first been locked by the authorised person - thus preventing this person from unlocking the briefcase again until all secondary parties have removed their electronic lock from the briefcase. your suggestions on how to do this are most welcome.
     
  7. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    This isn't like email. You don't have to send the same message to different people.
     
  8. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Craig, are you looking for an already made device, our are you wanting to build one?

    How are your programming skills?

    Any connection by accessible USB ports is going to be very insecure. External charging points can also be problematic.

    How secure does this have to be? Is it being used in a secure environment by trusted people? If not, fancy locks using microcontrollers are not going to prevent a person with an angle grinder from bypassing them.
     
  9. craig power

    craig power

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    Oct 21, 2016
    Programming skills are not an issue - a crude prototype has been developed and functionality demonstrated. There are two options - Firstly : an existing device is preferable - Secondly - to build a functioning device. Security is not an issue for the secure brief case - it is used by trusted people - the case can be take the form of existing brief cases
     
  10. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,505
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    Jan 21, 2010
    From what you've said, if you can't find something existing, a microcontroller based approach is likely to be smaller, cheaper, and require less battery power.

    Try to prototype something up on an arduino.
     
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