Wireless sensor system and method
First Claim
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1. A wireless sensor system comprising:
- at least one sensor coupled to a Radio Frequency Identification system comprising a transmitter and a receiver, wherein the transmitter includes a wireless module and the transmitter is configured to transmit an alarm signal, the alarm signal being transmitted by the transmitter when the output from the sensor is lower than a specific threshold, and wherein the receiver triggers an alarm when the alarm signal is received;
a circuit coupled to the sensor and the wireless module, wherein the circuit is configured to set a threshold voltage;
further comprising a humidity sensor coupled to the circuit and a negative feedback loop configured to provide linear voltage output of the circuit versus percentage of relative humidity;
a demultiplexer configured to separate the signals received by the receiver from the transmitter and at least one comparator coupled to the alarm; and
a storage system configured to store a sensing signal received from the sensor, wherein the storage system is coupled to the receiver.
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Abstract
The invention is a wireless sensor system coupled with sensors to non-invasively monitor external stimuli. By monitoring the outputs of sensors, the output data can be used to activate an alarm or logged for further diagnoses of human conditions.
37 Citations
16 Claims
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1. A wireless sensor system comprising:
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at least one sensor coupled to a Radio Frequency Identification system comprising a transmitter and a receiver, wherein the transmitter includes a wireless module and the transmitter is configured to transmit an alarm signal, the alarm signal being transmitted by the transmitter when the output from the sensor is lower than a specific threshold, and wherein the receiver triggers an alarm when the alarm signal is received; a circuit coupled to the sensor and the wireless module, wherein the circuit is configured to set a threshold voltage; further comprising a humidity sensor coupled to the circuit and a negative feedback loop configured to provide linear voltage output of the circuit versus percentage of relative humidity; a demultiplexer configured to separate the signals received by the receiver from the transmitter and at least one comparator coupled to the alarm; and a storage system configured to store a sensing signal received from the sensor, wherein the storage system is coupled to the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless sensor system comprising:
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a. at least one sensor coupled to a Radio Frequency Identification system comprising a transmitter and a receiver, wherein the transmitter includes a wireless module and the transmitter is configured to transmit an alarm signal and a sensing signal; b. the alarm signal transmitted by wherein the transmitter is configured to transmit the alarm signal when the output from the sensor is lower than a specific threshold; c. wherein the receiver is configured to trigger an alarm when the alarm signal is received; d. a storage system configured to store a sensing signal received from the sensor, wherein the storage system is coupled to the receiver; and e. a humidity sensor coupled to the circuit and a negative feedback loop to provide linear voltage output of the circuit versus percentage of relative humidity. - View Dependent Claims (16)
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Specification