Secure optionally passive RFID tag or sensor with external power source and data logging
First Claim
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1. A secure optionally passive RFID tag system comprising:
- a passive RFID tag having a first environmentally rugged and sealed housing;
said tag further comprising means for receiving radio signals from at least one base station and for transmitting radio signals to at least one base station;
said tag further comprising means for being powered exclusively by received radio energy;
said tag further comprising means for storing data;
an external power and data logging device having a second environmentally rugged and sealed housing;
said external power and data logging device further comprising at least one battery;
said external power and data logging device further comprising electronic circuitry including a digital memory configured for reading, storing and writing data;
said external power and data logging device providing means for powering said tag;
said external power and data logging device providing means for reading and storing data from said tag; and
a means for reversibly joining said first environmentally sealed housing to said second environmentally sealed housing which maintains an environmental seal for said tag and said external power and data logging device.
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Abstract
A secure optionally passive RFID tag or sensor system comprises a passive RFID tag having means for receiving radio signals from at least one base station and for transmitting radio signals to at least one base station, where the tag is capable of being powered exclusively by received radio energy, and an external power and data logging device having at least one battery and electronic circuitry including a digital memory configured for storing and recalling data. The external power and data logging device has a means for powering the tag, and also has a means.
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Citations
30 Claims
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1. A secure optionally passive RFID tag system comprising:
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a passive RFID tag having a first environmentally rugged and sealed housing; said tag further comprising means for receiving radio signals from at least one base station and for transmitting radio signals to at least one base station; said tag further comprising means for being powered exclusively by received radio energy; said tag further comprising means for storing data; an external power and data logging device having a second environmentally rugged and sealed housing; said external power and data logging device further comprising at least one battery; said external power and data logging device further comprising electronic circuitry including a digital memory configured for reading, storing and writing data; said external power and data logging device providing means for powering said tag; said external power and data logging device providing means for reading and storing data from said tag; and a means for reversibly joining said first environmentally sealed housing to said second environmentally sealed housing which maintains an environmental seal for said tag and said external power and data logging device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A secure optionally passive RFID tag or sensor system comprising:
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a passive RFID tag having a first environmentally rugged and sealed housing; said housing further comprising means for adhesively attaching to an object; said housing further comprising tamper detection means; said tag further comprising means for receiving radio signals from at least one base station and for transmitting radio signals to at least one base station; said tag further comprising means for decrypting signals and encrypting signals; said received signals and said transmitted signals being encrypted; said tag further comprising means for being powered exclusively by received radio energy; said tag further comprising means for storing data; said tag further comprising at least one sensor selected from the group consisting of fiber optic cable loop, temperature sensor, radiation sensor, light level sensor, humidity sensor, vibration sensor, chemical sensor, gas sensor, pressure sensor, accelerometer, and gyroscope; wherein said data includes data received from said sensor; an external power and data logging device having a second environmentally rugged and sealed housing; said external power and data logging device further comprising at least one battery; said external power and data logging device further comprising electronic circuitry including a digital memory configured for reading, storing and writing data; said external power and data logging device providing means for powering said tag; said external power and data logging device providing means for reading and storing data from said tag; a means for reversibly joining said first environmentally sealed housing to said second environmentally sealed housing which maintains an environmental seal for said tag and said external power and data logging device; said tag further comprising an electrical connector; said external power and data logging device further comprising a matching electrical connector; said means for powering said tag at least partially comprising communicating electrical power through said electrical connectors; said means for reading data from said tag at least partially comprising communicating data through said electrical connectors; wherein attaching said external power and data logging device to said tag causes said tag to be powered by said battery; and attaching said external power and data logging device to said tag causes said digital memory to read and store data from said tag. - View Dependent Claims (30)
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Specification