Bi-Modal Remote Identification System
First Claim
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1. A bi-modal identification system comprising:
- a base unit comprising a radio frequency signal receiver and an ultrasound signal transmitter;
a mobile unit comprising an ultrasound signal receiver and a radio frequency signal transmitter; and
a central processor for processing and coordinating a data exchange between the base unit and the mobile unit, the exchange comprising a first radio frequency signal transmission, a first ultrasound signal transmission subsequent to receipt of the first radio frequency signal, and a second radio frequency signal transmission, wherein the base unit is capable of processing exchange information for calculating detection data for the mobile unit and location data of the mobile unit.
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Abstract
A novel bi-modal remote identification system is described. In at least one embodiment the system includes a base unit, a mobile unit, and a processor. The base unit and mobile unit utilize both radio frequency and ultrasound wireless technologies for remotely identifying the location of assets.
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Citations
20 Claims
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1. A bi-modal identification system comprising:
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a base unit comprising a radio frequency signal receiver and an ultrasound signal transmitter; a mobile unit comprising an ultrasound signal receiver and a radio frequency signal transmitter; and a central processor for processing and coordinating a data exchange between the base unit and the mobile unit, the exchange comprising a first radio frequency signal transmission, a first ultrasound signal transmission subsequent to receipt of the first radio frequency signal, and a second radio frequency signal transmission, wherein the base unit is capable of processing exchange information for calculating detection data for the mobile unit and location data of the mobile unit.
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2. A bi-modal identification system comprising:
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a first transmitter; a first receiver for receiving a first signal from the first transmitter; and a second transmitter for transmitting a second signal to a second receiver in response to receiving a signal by the first receiver from the first transmitter, the first transmitter sends a third signal in response to receiving a signal by the second receiver from the first transmitter, the first signal and third signal contain information for identifying the first transmitter;
a data processor is coupled to the second transmitter and the second receiver, wherein the data processor is capable of controlling signal transmission, processing signal data, calculating the distance between the first transmitter and the first receiver, and communicating the processed signal data and distance data to a second data processor, wherein the first transmitter operates in a wireless mode different from the second transmitter. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. A bi-modal remote identification system for efficiently tracking mobile assets comprising:
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an asset device comprising a radio frequency transmitter, an ultrasound receiver, a microcontroller, and a compact power supply device; a control device for receiving signals from the asset device, transmitting signals to the asset device, the control device comprising a radio frequency receiver and an ultrasound transmitter; and a controller for processing data from the control device, the controller coupled to the control device and a computer network, wherein the asset device operates in a power-savings mode, the power savings mode is controlled by the microcontroller, the microcontroller reducing the time frequency of the radio frequency transmissions based upon signal transmission and receipt between the asset device and the control device.
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12. A method for efficiently tracking an asset comprising the following steps:
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completing a signal handshake, the handshake comprising the following steps;
transmitting a first radio frequency signal from a mobile asset device, the asset device comprising a radio frequency transmitter and an ultrasound receiver;receiving a radio frequency signal, the signal being received by a control device comprising a radio frequency receiver and an ultrasound transmitter; transmitting an ultrasound signal from the control device in response to the control device receiving a radio frequency signal; receiving an ultrasound signal from the control device, the signal being received by the mobile asset device; transmitting a second radio frequency signal from the mobile asset device; receiving a second radio frequency signal, the second radio frequency signal being received by the control device; calculating the distance between the asset device and the control device based upon the time of receipt for the first and second radio frequency signal; and accessing a memory storage device for identifying the asset associated with the asset device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification