CPC G06K 19/0724 (2013.01) [G09F 3/0335 (2013.01)] | 16 Claims |
1. A tamper detection device (100) affixed to a container for detecting an unauthorized intrusion into the container, said device (100) comprising:
a. at least one transducer (106, 110) configured to detect a tamper event, and further configured to generate a trigger signal upon detection of the tamper event;
b. a power supply unit (114);
c. a logical gate (112) operable in an open state or a closed state;
d. a processing unit (104) connected to said power supply unit (114) to receive power therefrom, said processing unit (104) configured to cooperate with said transducer (106, 110) and said logical gate (112) to generate a tamper detection signal for changing the state of said logical gate (112) upon:
i. receiving said trigger signal from said transducer (106, 100); or
ii. detecting a cut-off of power supply from said power supply unit (114);
e. a tamper tag (102) connected to said logical gate (112) and configured to store a tamper flag value, wherein a change in the state of said logical gate (112) causes said tamper flag value to change, wherein the tamper flag value indicates a tamper status of the device (100); and
f. a capacitor (108) configured to supply power to said processing unit (104) to facilitate generation of said tamper detection signal in absence of the supply power from said power supply unit (114).
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