System and method for CCX based sensor data tracking with highly assured data delivery
First Claim
1. A one-directional wireless data collection system to provide highly assured data delivery to recover data recorded by a sensor of a tag during a network disruption, the system comprising:
- the tag, the tag comprising;
the sensor configured to provide a measurement of an environmental characteristic at a first average repetition rate R;
a memory coupled to the sensor and configured to store M previous measurements of the environmental characteristic measured by the sensor; and
a transmitter module coupled to the memory and configured to transmit a plurality of transmissions, each transmission comprising a present measurement of the environmental characteristic and a plurality of previous measurements of the environmental characteristic selected from the M previous measurements; and
a system controller to wirelessly receive the plurality of transmissions from the tag, the system controller coupled to a database of received measurements of the environmental characteristic, the system controller programmed to perform the steps of;
extracting the present measurement and the plurality of previous measurements of the environmental characteristic from each respective transmission of the plurality of transmissions;
adding the present measurement of the environmental characteristic to the database;
detecting, in each respective transmission, any of the previous measurements of the plurality of previous measurements missing from the database by comparing said plurality of previous measurement of the environmental characteristic from the respective transmission with the received measurements of the environmental characteristic in the database;
for said detected previous measurements, adding said detected previous measurements to the database, without request for retransmission of said detected previous measurements,wherein each transmission contains a different plurality of previous measurements compared to an immediately-preceding transmission, andwherein the plurality of previous measurements comprises a subset of the M previous measurements of the environmental characteristic, and the subset comprises measurements to be reported at a first rate that is N1 times slower than the first average repetition rate R.
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Accused Products
Abstract
A tag, system, and method for wireless sensor data collection, the system including: a data collection tag, the tag including: a sensor configured to provide, at a first repetition rate, a present measurement of an environmental characteristic; a memory configured to store previous measurements of the environmental characteristic; and a transmitter module configured to transmit the present measurement of the environmental characteristic and at least one previous measurement of the environmental characteristic; an access point configured to receive a transmission from the data collection tag; and a controller communicatively coupled to the access point, the controlled configured to store historical measurements extracted from the transmission from the data collection tag.
28 Citations
12 Claims
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1. A one-directional wireless data collection system to provide highly assured data delivery to recover data recorded by a sensor of a tag during a network disruption, the system comprising:
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the tag, the tag comprising; the sensor configured to provide a measurement of an environmental characteristic at a first average repetition rate R; a memory coupled to the sensor and configured to store M previous measurements of the environmental characteristic measured by the sensor; and a transmitter module coupled to the memory and configured to transmit a plurality of transmissions, each transmission comprising a present measurement of the environmental characteristic and a plurality of previous measurements of the environmental characteristic selected from the M previous measurements; and a system controller to wirelessly receive the plurality of transmissions from the tag, the system controller coupled to a database of received measurements of the environmental characteristic, the system controller programmed to perform the steps of; extracting the present measurement and the plurality of previous measurements of the environmental characteristic from each respective transmission of the plurality of transmissions; adding the present measurement of the environmental characteristic to the database; detecting, in each respective transmission, any of the previous measurements of the plurality of previous measurements missing from the database by comparing said plurality of previous measurement of the environmental characteristic from the respective transmission with the received measurements of the environmental characteristic in the database; for said detected previous measurements, adding said detected previous measurements to the database, without request for retransmission of said detected previous measurements, wherein each transmission contains a different plurality of previous measurements compared to an immediately-preceding transmission, and wherein the plurality of previous measurements comprises a subset of the M previous measurements of the environmental characteristic, and the subset comprises measurements to be reported at a first rate that is N1 times slower than the first average repetition rate R. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method to provide one-directional wireless, highly assured data delivery to recover data recorded by a sensor of a tag during a network disruption, the method comprising:
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sensing, by use of the sensor, a measurement of an environmental characteristic at a first average repetition rate R; storing, in a memory coupled to the sensor, M previous measurements of the environmental characteristic measured by the sensor; and transmitting, by a transmitter module coupled to the memory, a plurality of transmissions, each transmission comprising the present measurement of the environmental characteristic and a plurality of previous measurements of the environmental characteristic selected the M previous measurements; wirelessly receiving, by a system controller, the plurality of transmissions, the system controller coupled to a database of received measurements of the environmental characteristic; extracting, by the system controller, the present measurement and the plurality of previous measurements of the environmental characteristic from each respective transmission of the plurality of transmissions; adding, by the system controller, the present measurement of the environmental characteristic to the database; detecting, by the system controller, in each respective transmission, any of the previous measurements of the plurality of previous measurements missing from the database by comparing the plurality of previous measurement of the environmental characteristic from the respective transmission with the received measurements of the environmental characteristic in the database; for said detected previous measurements, adding by the system controller said detected previous measurements to the database, without request for retransmission of said detected previous measurements, wherein each transmission contains a different plurality of previous measurements compared to an immediately-preceding transmission, and wherein the plurality of previous measurements comprises a subset of the M previous measurements of the environmental characteristic, and the subset comprises measurements to be reported at a first rate that is N1 times slower than the first average repetition rate R. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification