Remotely powered, multisite sensing system with a shared, two-wire bus for power and communication
First Claim
1. A multisite 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, wherein the one or more first circuit components include a first analog-to-digital converter;
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 one or more second circuit components include a second analog-to-digital converter;
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 multisite 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;
wherein the first analyte indicator is spatially separated from the second analyte indicator for analyte sensing at least at two different analyte indicator locations.
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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
24 Claims
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1. A multisite 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, wherein the one or more first circuit components include a first analog-to-digital converter; 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 one or more second circuit components include a second analog-to-digital converter; 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 multisite 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; wherein the first analyte indicator is spatially separated from the second analyte indicator for analyte sensing at least at two different analyte indicator locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multisite sensing system comprising:
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two or more analyte sensors; an interface device configured to convey data signals generated by the two or more analyte sensors; and a shared bus connected to the interface device and each of the two or more analyte sensors and configured to provide the data signals generated by the two or more analyte sensors to the interface device, wherein the shared bus consists of two wires.
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18. A multisite sensing system comprising:
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a first analyte sensor; a second analyte sensor; an interface device configured to (i) receive a command from a transceiver external to the multisite sensing system and (ii) convey data signals generated by the first and second analyte sensors to the transceiver, wherein the command includes an address; and a shared bus connected to the interface device, the first analyte sensor, and the second analyte sensor and configured to (i) provide the command received by the interface device to the first and second analyte sensors and (ii) provide the data signals generated by the first and second analyte sensors to the interface device; wherein the first analyte sensor comprises; 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 (i) extract the address from the command and (ii) provide a response based on the detectable property exhibited by the first analyte indicator only if the extracted address matches a first address; wherein the second analyte sensor comprises; 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 (i) extract the address from the command and (ii) provide a response based on the detectable property exhibited by the second analyte indicator only if the extracted address matches a second address; wherein the first address is different than the second address, and the data signals include one or more of the responses provided by the first and second analyte sensors. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification