Reusable electronic trailer seal
First Claim
1. A reusable electronic seal for a trailer which comprises:
- a structural enclosure configured to attach onto a shackle of a padlock, wherein said structural enclosure further comprising an outwardly extending arm for interfacing with the padlock, and said structural outwardly extending arm further having a shackle aperture therethrough configured to receive a pivotal leg of the padlock shackle to lock the seal onto the padlockan electronic module integrated within the enclosure, said module comprising;
a rechargeable battery producing an electrical power source,a battery charging circuit in communication with said battery,a photovoltaic cell in communication with said battery charging circuit providing a power source for recharging the battery,a voltage sensor interfacing with said battery indicating battery voltage,a microprocessor programmed with software to receive a battery voltage signal from the voltage sensor and if low voltage is sensed by the microprocessor the microprocessor sends a signal to the battery charging circuit to recharge the battery, wherein said microprocessor receiving electrical power from said battery,a random number generator interfacing with said microprocessor,a liquid crystal display communicating with said random number generator, anda shackle engagement switch configured to engage the padlock shackle, applying a signal to said microprocessor such that when the padlock has been opened and re-latched the shackle engagement switch signals the microprocessor to signal the random number generator to send a new number to the liquid crystal display.
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Abstract
A reusable electronic seal for a trailer includes a structural enclosure configured to attach onto a shackle of a padlock with an electronic module integrated within the to enclosure. A rechargeable battery circuit with a photovoltaic cell is in communication with a battery permitting the battery to be charged by the photovoltaic cell when the voltage is low. The electronic module incorporates a microprocessor, a random number generator and a liquid crystal display which communicates with the random number generator. A shackle engagement switch is configured to engage the padlock shackle, applying a signal to the microprocessor when the padlock has been opened. When the padlock is re-latched the shackle engagement switch triggers the microprocessor to signal the random number generator to transmit a new number to the liquid crystal display.
55 Citations
16 Claims
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1. A reusable electronic seal for a trailer which comprises:
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a structural enclosure configured to attach onto a shackle of a padlock, wherein said structural enclosure further comprising an outwardly extending arm for interfacing with the padlock, and said structural outwardly extending arm further having a shackle aperture therethrough configured to receive a pivotal leg of the padlock shackle to lock the seal onto the padlock an electronic module integrated within the enclosure, said module comprising; a rechargeable battery producing an electrical power source, a battery charging circuit in communication with said battery, a photovoltaic cell in communication with said battery charging circuit providing a power source for recharging the battery, a voltage sensor interfacing with said battery indicating battery voltage, a microprocessor programmed with software to receive a battery voltage signal from the voltage sensor and if low voltage is sensed by the microprocessor the microprocessor sends a signal to the battery charging circuit to recharge the battery, wherein said microprocessor receiving electrical power from said battery, a random number generator interfacing with said microprocessor, a liquid crystal display communicating with said random number generator, and a shackle engagement switch configured to engage the padlock shackle, applying a signal to said microprocessor such that when the padlock has been opened and re-latched the shackle engagement switch signals the microprocessor to signal the random number generator to send a new number to the liquid crystal display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification