Wireless transmission system with integrated sensing capability
First Claim
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1. A sensor for detecting a change in state of an asset comprising:
- a wireless transmission system configured to transmit a control signal to an external device, the wireless transmission system including;
a transmission antenna operable to transmit the control signal to the external device,control electronics including at least one of a radio frequency identification (RFID) chip and a Bluetooth™
chip in circuit with the transmission antenna configured to provide the control signal to the transmission antenna for transmission to the external device, anda sensing element including a bypass antenna operable to move from an undisturbed position to a displaced position, the bypass antenna being in parallel with the transmission antenna and the at least one of the RFID chip and the Bluetooth™
chip when in the undisturbed position to suppress the control signal for preventing the wireless transmission system from transmitting the control signal to the external device, and the bypass antenna operable to permit the control signal to be received by the transmission antenna for transmitting the control signal to the external device when the bypass antenna is displaced from the undisturbed position.
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Abstract
A sensor for detecting a change in state of an asset comprising including a transmission antenna operable to transmit a control signal to an external device, control electronics connected to the transmission antenna configured to provide instructions to the transmission antenna to transmit the control signal, and a bypass antenna positioned and configured to prevent the control electronics from providing the instructions to the transmission antenna when the bypass antenna is in an undisturbed position and to permit the control electronics to provide the instructions to the transmission antenna when the bypass antenna is displaced from the undisturbed position.
33 Citations
24 Claims
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1. A sensor for detecting a change in state of an asset comprising:
a wireless transmission system configured to transmit a control signal to an external device, the wireless transmission system including; a transmission antenna operable to transmit the control signal to the external device, control electronics including at least one of a radio frequency identification (RFID) chip and a Bluetooth™
chip in circuit with the transmission antenna configured to provide the control signal to the transmission antenna for transmission to the external device, anda sensing element including a bypass antenna operable to move from an undisturbed position to a displaced position, the bypass antenna being in parallel with the transmission antenna and the at least one of the RFID chip and the Bluetooth™
chip when in the undisturbed position to suppress the control signal for preventing the wireless transmission system from transmitting the control signal to the external device, and the bypass antenna operable to permit the control signal to be received by the transmission antenna for transmitting the control signal to the external device when the bypass antenna is displaced from the undisturbed position.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of detecting a change in state of an asset, the method comprising:
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providing a sensor including; a wireless transmission system configured to transmit a control signal to an external device, the wireless transmission system including; a transmission antenna operable to transmit the control signal to the external device, control electronics including at least one of a radio frequency identification (RFID) chip and a Bluetooth™
chip in circuit with the transmission antenna and configured to provide the control signal to the transmission antenna for transmission to the external device, anda sensing element including a bypass antenna operable to move from an undisturbed position to a displaced position, the bypass antenna being in parallel with the transmission antenna and the at least one of the RFID chip and the Bluetooth chip when in the undisturbed position to suppress the control signal for preventing the wireless transmission system from transmitting the control signal to the external device, and the bypass antenna operable to permit the control signal to be received by the transmission antenna for transmitting the control signal to the external device when the bypass antenna is displaced from the undisturbed position; and connecting the sensor to the asset such that the bypass antenna is positioned to be displaced based on the change in state of the asset. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A sensor for detecting a change in state of an asset comprising:
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a transmission antenna operable to transmit an interrogation response signal to an external device; an RFID chip connected in circuit with the transmission antenna, the RFID chip configured to generate the interrogation response signal only in response to receiving an interrogation signal from an interrogator and configured to provide the interrogation response signal to the transmission antenna; and a bypass antenna operable to move from an undisturbed position to a displaced position, the bypass antenna being in parallel with the transmission antenna and the RFID chip when in the undisturbed position to suppress the interrogation response signal as it is transmitted from the RFID chip to the transmission antenna for preventing the transmission antenna from transmitting the interrogation response signal to the external device, and the bypass antenna permitting an unsuppressed interrogation response signal to be transmitted from the RFID chip to the transmission antenna when in the displaced position for allowing the transmission antenna to transmit the interrogation response signal to the external device. - View Dependent Claims (21, 22, 23, 24)
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Specification