Tamper-proof electronic bolt-seal
First Claim
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1. An electronic security device, said device comprising:
- a mechanical fastener configured to physically secure a container latch in a closed position;
at least one non-zero electrical resistor embedded in said mechanical fastener, wherein said non-zero electrical resistor has a resistance value that changes when said mechanical fastener is tampered with; and
electronics, circuitry, and a digital memory that contains a unique electronic identification code for said electronic security device, wherein said electronic identification code is combined with said resistance value of said non-zero electrical resistor to create a unique seal identification code when said electronic security device is fastened to said container latch;
wherein the resistance value is randomized based on a randomized embedded length of the non-zero electrical resistor, the randomized embedded length being embedded in said mechanical fastener;
wherein the mechanical fastener includes a removable fastener; and
wherein when the removable fastener is unfastened, a circuit continuity of the circuitry is opened.
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Abstract
A tamper-proof bolt-seal incorporating a unique identification tamper detection sensor that cannot be restored or duplicated after the bolt. The sensor employs a resistive sensor wire embedded in the bolt. The resistive sensor wire has a randomized length to enable a unique resistive value for that sensor. The resistive value of the sensor is combined with an electronic identification code to create the unique seal identification for the tamper detection sensor, therefore giving the bolt a seal identification that is unique and that cannot be restored or duplicated.
18 Citations
18 Claims
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1. An electronic security device, said device comprising:
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a mechanical fastener configured to physically secure a container latch in a closed position; at least one non-zero electrical resistor embedded in said mechanical fastener, wherein said non-zero electrical resistor has a resistance value that changes when said mechanical fastener is tampered with; and electronics, circuitry, and a digital memory that contains a unique electronic identification code for said electronic security device, wherein said electronic identification code is combined with said resistance value of said non-zero electrical resistor to create a unique seal identification code when said electronic security device is fastened to said container latch; wherein the resistance value is randomized based on a randomized embedded length of the non-zero electrical resistor, the randomized embedded length being embedded in said mechanical fastener; wherein the mechanical fastener includes a removable fastener; and wherein when the removable fastener is unfastened, a circuit continuity of the circuitry is opened. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification