Article-identification-and-location device systems and methods of using same
A luggage tag includes an electronic ink display screen affixed to a surface of the luggage tag. Tag memory of the tag stores a unique identifier. An antenna receives an electromagnetic signal. Circuitry of the tag captures energy and acquires data from the electromagnetic signal received by the antenna and powers the electronic ink display with the captured energy. A processor receives the data acquired by the circuitry from the electromagnetic signal and produces an image on the electronic ink display using the acquired data if the acquired data includes a match to the unique identifier stored in the memory.
1 . An electronic tag, comprising:
a transceiver adapted to listen for electromagnetic signals including user information transmitted by a transmitter of a remote device;
an indicator that is activated in response to receipt of the user information;
an altimeter that monitors a current altitude of the electronic tag;
a memory that stores a unique identifier associated with a user of the electronic tag; and
a processor in communication with the transceiver, indicator, altimeter, and memory, the processor configured to:
compare the current altitude to a first threshold and disable the transceiver and indicator when the altitude exceeds the first threshold;
re-enable the transceiver and indicator when the altitude falls below a second threshold; and
activate the indicator if the received user information matches the unique identifier stored in the memory.
2 . The electronic tag of claim 1 , further comprising an electronic ink display screen for displaying the received user information.
3 . The electronic tag of claim 1 , wherein in a power-saving operation, the altimeter operates to monitor altitudes of the electronic tag.
4 . The electronic tag of claim 1 , wherein in a power-saving operation, the altimeter stops listening for the electromagnetic signals.
5 . The electronic tag of claim 1 , wherein the electronic tag includes a coupling mechanism for attaching to an object, and wherein the altimeter monitors the current altitude of both the electronic tag and the object.
6 . The electronic tag of claim 5 , wherein the memory stores the unique identifier that pairs the object to the user.
7 . The electronic tag of claim 1 , wherein the indicator includes a display or a light or a speaker.
8 . The electronic tag of claim 1 , wherein in response to the transceiver receiving the user information upon receiving a radiofrequency (RF) signal of the electromagnetic signals including the user information with this information, activates the indicator.
9 . The electronic tag of claim 1 , further comprising a sensor that performs inertial measurements, which in combination with the current altitude determined by the altimeter is processed by the processor to determine whether to activate or inactivate the transceiver.
10 . The electronic tag of claim 2 , wherein the electronic ink display screen is updated only upon receipt of the electromagnetic signal containing data matching the unique identifier stored in the memory.
11 . The electronic tag of claim 1 , further comprising a multi-axis inertial measurement unit (IMU), wherein the processor fuses data from the IMU and the altimeter to detect motion patterns indicative of aircraft boarding or disembarkation, and selectively activates or inactivates the transceiver based on the detected pattern.
12 . The electronic tag of claim 1 , wherein the processor is further configured to maintain the transceiver in a disabled state until both the current altitude falls below the second threshold and a valid user identifier is received.
13 . The electronic tag of claim 1 , wherein the processor is configured to enter a reduced power mode in response to the altitude exceeding the first threshold, and to resume full operational mode only after receiving a valid user identifier.
14 . A method for controlling an operation of an electronic tag coupled to an object, comprising:
listening, by a transceiver of the electronic tag, for radiofrequency (RF) signals including information about a relationship between the object and a user of the object;
monitoring, by an altimeter of the electronic tag, a current altitude of the electronic tag and object; and
comparing the current altitude to a first threshold and inactivating the transceiver when the current altitude is greater than the first threshold; and
re-enabling the transceiver when the altitude falls below a second threshold.
15 . The method of claim 14 , further comprising:
disabling an indicator of the electronic tag when the altitude exceeds the first threshold;
re-enabling the indicator when the altitude falls below the second threshold; and
activating the indicator if received user information matches a unique identifier stored in memory.
16 . A method for controlling operation of an electronic tag coupled to an object, comprising:
receiving, by a transceiver of the electronic tag, electromagnetic signals including user information;
monitoring, by an altimeter, a current altitude of the electronic tag;
comparing, by a processor, the current altitude to a first threshold;
disabling the transceiver when the current altitude exceeds the first threshold;
re-enabling the transceiver when the current altitude falls below a second threshold; and
activating an indicator only if the received user information matches a unique identifier stored in memory of the electronic tag.