Continuously monitored core temperature sensor and method
First Claim
Patent Images
1. A system for continually monitoring a parameter in food service equipment, said system comprising:
- a wireless device attached to said food service equipment, wherein said wireless device has a sensor that continually monitors said parameter and a transmitter/receiver; and
a control device attached to said food service equipment, wherein said control device has a tracking feature that monitors and processes information received from said transmitter/receiver of said wireless device and a transmitter/receiver,wherein said control device and said wireless device communicate with one another via a communication link that has a reception range;
wherein said control device broadcasts a signal via said communication link to said wireless device,wherein said wireless device obtains a measurement of said parameter and broadcasts a signal via said communication link to said control device,wherein said signal broadcast by said wireless device includes said measurement of said parameter, andwherein said signals from said control device and signals from said wireless device are broadcast at a fast enough rate such that consecutive signals broadcast from said wireless device indicate motion of said wireless device, and wherein said tracking feature of said control device processes consecutive signals broadcast by said wireless device to obtain said measurement of said parameter and determine if said wireless device is within said reception range, and provide an alert if said wireless device is not in said reception range, or if there is no return signal.
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Abstract
A system that provides notice of a lost signal. A wireless device and a control device employ radio frequency identification (RFID) technology, which uses radio frequency signals to communicate with one another via communication link having a reception range. The control device transmits a signal to the wireless device via the communication link. The wireless device responds by transmitting a return signal via the communication link. The control device processes the return signal to determine if the wireless device is within the reception range, if not, the control device provides an audible, written or visual alarm.
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Citations
14 Claims
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1. A system for continually monitoring a parameter in food service equipment, said system comprising:
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a wireless device attached to said food service equipment, wherein said wireless device has a sensor that continually monitors said parameter and a transmitter/receiver; and a control device attached to said food service equipment, wherein said control device has a tracking feature that monitors and processes information received from said transmitter/receiver of said wireless device and a transmitter/receiver, wherein said control device and said wireless device communicate with one another via a communication link that has a reception range; wherein said control device broadcasts a signal via said communication link to said wireless device, wherein said wireless device obtains a measurement of said parameter and broadcasts a signal via said communication link to said control device, wherein said signal broadcast by said wireless device includes said measurement of said parameter, and wherein said signals from said control device and signals from said wireless device are broadcast at a fast enough rate such that consecutive signals broadcast from said wireless device indicate motion of said wireless device, and wherein said tracking feature of said control device processes consecutive signals broadcast by said wireless device to obtain said measurement of said parameter and determine if said wireless device is within said reception range, and provide an alert if said wireless device is not in said reception range, or if there is no return signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for continually monitoring a parameter in food service equipment, the method comprising:
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monitoring said parameter of said food service equipment with a wireless device attached to said food service equipment, wherein said wireless device has a transmitter/receiver; broadcasting signals from a control device attached to said food service equipment via a communication link that has a reception range to said wireless device, wherein said control device has a transmitter/receiver and a tracking feature that monitors and processes information received from said transmitter/receiver of said wireless device; receiving said signals broadcast from said control device by said wireless device; obtaining a measurement of said parameter by said wireless device; broadcasting from said wireless device a signals via said communication link to said control device, wherein said signals broadcast from said wireless device includes said measurement of said parameter; receiving said signals broadcast from said wireless device by said control device, wherein said signals from said control device and signals from said wireless device are broadcast at a fast enough rate such that consecutive signals broadcast from said wireless device indicate motion of said wireless device, and wherein said tracking feature of said control device processes consecutive signals broadcast by said wireless device; processing by said control device said signals broadcast from said wireless device to obtain said measurement of said parameter and determine if said wireless device is within said reception range; and providing an alert if said signals broadcast from said wireless device indicate that said wireless device is not within said reception range, or if there are no signals from said wireless device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification