Marine asset security and tracking (MAST) system
First Claim
1. A method, comprising transmitting identification data, location data and environmental state sensor data from a radio frequency tag,wherein the radio frequency tag adjusts, with regard to the environmental state sensor data, a set point to lower power consumption,wherein the radio frequency tag can be switched to a transceiver mode that permits tag to tag communication andwherein the radio frequency tag is switched to the transceiver mode when an alarm state is activated.
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Accused Products
Abstract
Methods and apparatus are described for marine asset security and tracking (MAST). A method includes transmitting identification data, location data and environmental state sensor data from a radio frequency tag. An apparatus includes a radio frequency tag that transmits identification data, location data and environmental state sensor data. Another method includes transmitting identification data and location data from a radio frequency tag using hybrid spread-spectrum modulation. Another apparatus includes a radio frequency tag that transmits both identification data and location data using hybrid spread-spectrum modulation.
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Citations
126 Claims
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1. A method, comprising transmitting identification data, location data and environmental state sensor data from a radio frequency tag,
wherein the radio frequency tag adjusts, with regard to the environmental state sensor data, a set point to lower power consumption, wherein the radio frequency tag can be switched to a transceiver mode that permits tag to tag communication and wherein the radio frequency tag is switched to the transceiver mode when an alarm state is activated.
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34. An apparatus, comprising:
- a radio frequency tag that transmits identification data, location data and environmental state sensor data,
wherein the radio frequency tag adjusts, with regard to the environmental state sensor data, a set point to lower power consumption, wherein the radio frequency tag can be switched to a transceiver mode that permits tag to tag communication and wherein the radio frequency tag is switched to the transceiver mode when an alarm state is activated. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
- a radio frequency tag that transmits identification data, location data and environmental state sensor data,
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63. A method, comprising transmitting identification data and location data from a radio frequency tag using hybrid spread-spectrum modulation,
wherein the radio frequency tag adjusts, with regard to the environmental state sensor data, a set point to lower power consumption, wherein the radio frequency tag can be switched to a transceiver mode that permits tag to tag communication and wherein the radio frequency tap is switched to the transceiver mode when an alarm state is activated.
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96. An apparatus, comprising:
- a radio frequency tag that transmits both identification data and location data using hybrid spread-spectrum modulation,
wherein the radio frequency tag adjusts, with regard to the environmental state sensor data, a set point to lower cower consumption, wherein the radio frequency tag can be switched to a transceiver mode that permits tag to tag communication and wherein the radio frequency tag is switched to the transceiver mode when an alarm state is activated. - View Dependent Claims (97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126)
- a radio frequency tag that transmits both identification data and location data using hybrid spread-spectrum modulation,
Specification