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.
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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