Secure Cargo Transportation System
First Claim
1. A wireless communications device comprising:
- a processing unit;
memory communicatively coupled to the processing unit;
a first antenna;
a cellular receiver communicatively coupled to the processing unit and the first antenna, the cellular receiver configured to receive wireless communications via the first antenna using a first protocol;
a second antenna; and
a backscattering device communicatively coupled to the second antenna and the processing unit, the backscattering device configured to perform wireless communications via the second antenna by backscattering a received signal using a second protocol, the second protocol being different than the first protocol.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of controlling access to a movable container, the method comprising controllably locking the container using an electronically actuated locking mechanism; storing in a memory a desired geographical location; determining the geographical location of the container; and enabling the locking mechanism to unlock the container if the determined geographical location matches the desired geographical location. A secure cargo transportation system comprises a vehicle including an enclosure having an opening; a door movable relative to the opening between a closed position, wherein the door restricts access to the enclosure, and an open position; an electronically actuable lock configured to selectively lock or unlock the door relative to the enclosure; a memory supported by the vehicle and configured to store a location coordinate; and a global positioning system supported by the vehicle and coupled to the memory and to the lock, and configured to enable the lock to unlock the door if the vehicle is within a predetermined distance of the location coordinate.
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Citations
22 Claims
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1. A wireless communications device comprising:
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a processing unit;
memory communicatively coupled to the processing unit;
a first antenna;
a cellular receiver communicatively coupled to the processing unit and the first antenna, the cellular receiver configured to receive wireless communications via the first antenna using a first protocol;
a second antenna; and
a backscattering device communicatively coupled to the second antenna and the processing unit, the backscattering device configured to perform wireless communications via the second antenna by backscattering a received signal using a second protocol, the second protocol being different than the first protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless communications device comprising:
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a processing unit;
memory communicatively coupled to the processing unit;
a location-determining system communicatively coupled to the processing unit, the location-determining system being configured to determine a current location of the wireless communications device;
a first antenna; and
a backscattering device communicatively coupled to the first antenna and the processing unit, the backscattering device configured to perform wireless communications via the first antenna by backscattering a received signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A wireless communications system comprising:
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an interrogator having one or more antennas, the interrogator configured to transmit one or more commands using a first protocol;
a first wireless communications device configured to transmit wireless communications using a second protocol, the second protocol being different than the first protocol; and
a portable identification device having one or more antennas, the portable identification device having a first unit and a second unit, the first unit and the second unit being communicatively coupled to a processing unit, the first unit being configured to backscatter a reply to the one or more commands received from the interrogator, the second unit being configured to receive information transmitted by the first wireless communications device using the second protocol. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification