Remotely powered, multisite sensing system with a shared, two-wire bus for power and communication
First Claim
1. A sensing system comprising:
- a first analyte sensor comprising;
a first analyte indicator configured to exhibit a detectable property based on an amount or concentration of a first analyte in proximity to the first analyte indicator; and
one or more first circuit components configured to generate a first data signal based on the detectable property exhibited by the first analyte indicator;
a second analyte sensor comprising;
a second analyte indicator configured to exhibit a detectable property based on an amount or concentration of a second analyte in proximity to the second analyte indicator; and
one or more second circuit components configured to generate a second data signal based on the detectable property exhibited by the second analyte indicator;
wherein the first analyte indicator and the one or more first circuit components are not part of the second analyte sensor, and the second analyte indicator and the one or more second circuit components are not part of the first analyte sensor;
an interface device configured to convey the first and second data signals to a transceiver external to the sensing system; and
a shared bus (a) connected to the interface device, the first analyte sensor, and the second analyte sensor and (b) configured to provide the first and second data signals from the first and second analyte sensors to the interface device.
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Accused Products
Abstract
A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.
17 Citations
23 Claims
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1. A sensing system comprising:
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a first analyte sensor comprising; a first analyte indicator configured to exhibit a detectable property based on an amount or concentration of a first analyte in proximity to the first analyte indicator; and one or more first circuit components configured to generate a first data signal based on the detectable property exhibited by the first analyte indicator; a second analyte sensor comprising; a second analyte indicator configured to exhibit a detectable property based on an amount or concentration of a second analyte in proximity to the second analyte indicator; and one or more second circuit components configured to generate a second data signal based on the detectable property exhibited by the second analyte indicator; wherein the first analyte indicator and the one or more first circuit components are not part of the second analyte sensor, and the second analyte indicator and the one or more second circuit components are not part of the first analyte sensor; an interface device configured to convey the first and second data signals to a transceiver external to the sensing system; and a shared bus (a) connected to the interface device, the first analyte sensor, and the second analyte sensor and (b) configured to provide the first and second data signals from the first and second analyte sensors to the interface device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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using one or more first circuit components of a first analyte sensor of a sensing system to generate a first data signal based on a detectable property exhibited by a first analyte indicator of the first analyte sensor of the sensing system, wherein the detectable property of the first analyte indicator is based on an amount or concentration of a first analyte in proximity to the first analyte indicator; using one or more second circuit components of a second analyte sensor of the sensing system to generate a second data signal based on a detectable property exhibited by a second analyte indicator of the second analyte sensor of the sensing system, wherein the detectable property of the second analyte indicator is based on an amount or concentration of a second analyte in proximity to the second analyte indicator, the first analyte indicator and the one or more first circuit components are not part of the second analyte sensor, and the second analyte indicator and the one or more second circuit components are not part of the first analyte sensor; using a shared bus of the sensing system to provide the first and second data signals from the first and second analyte sensors to an interface device of the sensing system, wherein the shared bus is connected to the interface device, the first analyte sensor, and the second analyte sensor; and using the interface device to convey the first and second data signals to a transceiver external to the sensing system. - View Dependent Claims (14, 15, 16)
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17. A method comprising:
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using two wires of a shared bus of a sensing system to provide data signals generated by two or more analyte sensors of the sensing system to an interface device of the sensing system, wherein the shared bus is connected to the interface device and each of the two or more analyte sensors, and the shared bus consists of the two wires; and using an interface device to convey data signals generated by the two or more analyte sensors.
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18. A method comprising:
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using an interface device of a sensing system to receive a command from a transceiver external to the sensing system, wherein the command includes an address; using a shared bus of the sensing system to provide the command received by the interface device to first and second analyte sensors of the sensing system, wherein the shared bus is connected to the interface device, the first analyte sensor, and the second analyte sensor; using one or more first circuit components of the first analyte sensor of the sensing system to extract the address from the command, determine that the extracted address matches a first address, and generate a response to the command based on a detectable property exhibited by a first analyte indicator of the first analyte sensor of the sensing system, wherein the detectable property of the first analyte indicator is based on an amount or concentration of a first analyte in proximity to the first analyte indicator; using one or more second circuit components of the second analyte sensor of the sensing system to extract the address from the command, determine that the extracted address does not match a second address, and not provide a response to the command, wherein the first address is different than the second address; using the shared bus to provide the response generated by the first analyte sensor to the interface device; and using the interface device to convey the response generated by the first analyte sensor to the transceiver. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification