Abstract: The present disclosure relates to the field of security systems and discloses a tamper detection device. The device (100) comprises at least one transducer (106,110), a power supply unit (114), a logical gate (112), a processing unit (104), and a tamper tag 102). The transducer (106,110) generates a trigger signal upon detection of a tamper event. The logical gate (112) is operable in an open state or a closed state. The processing unit (104) generates a tamper detection signal for changing the state of the logical gate (112) upon receiving the trigger signal or upon detecting loss of power supply from the power supply unit (114). The change in state of logical gate (112) is detected by a set of sensors (116), of the tamper tag (102), which in turn cause an LED indicator (118), of the tamper tag (102), to indicate the state of the device. An auxiliary capacitor (108) is configured to supply power to the processing unit (104) in the absence of the supply of power from the power supply unit (114).
Type:
Grant
Filed:
July 28, 2023
Date of Patent:
November 19, 2024
Assignees:
SEPIO PRODUCTS PRIVATE LIMITED, INDIAN INSTITUTE OF TECHNOLOGY, KANPUR
Inventors:
Murad Nathani, Paul Abner Noronha, Darshan Dhruman Gandhi, Dattaprasad Narayan Kamat, Yashowanta Narayan Mohapatra, Akhil Kumar Singh Rathore
Abstract: The present disclosure relates to the field of security systems and discloses a tamper detection device. The device (100) comprises at least one transducer (106,110), a power supply unit (114), a logical gate (112), a processing unit (104), and, a tamper tag 102). The transducer (106,110) generates a trigger signal upon detection of a tamper event. The logical gate (112) is operable in an open state or a closed state. The processing unit (104) generates a tamper detection signal for changing the state of the logical gate (112) upon receiving the trigger signal or upon detecting loss of power supply from the power supply unit (114). The change in state of logical gate (112) causes a tamper flag value stored in the tamper tag (102) to change, thereby indicating a tampered status to a reader scanning the tamper tag (102). The device (100) detects a tamper event even if the device (100) is not damaged/broken during tampering.
Type:
Grant
Filed:
January 25, 2021
Date of Patent:
August 22, 2023
Assignees:
SEPIO PRODUCTS PRIVATE LIMITED, INDIAN INSTITUTE OF TECHNOLOGY, KANPUR