Wireless monitoring system with a self-powered transmitter
First Claim
1. An apparatus for a wireless monitoring system, said apparatus comprising:
- at least one transmitting unit includingan inductor responsive to a magnetic field from a magnet attached to a moving component,a storage unit connected to said inductor, said storage unit storing energy generated from an interaction between said inductor and said magnet,a transmitter powered by said storage unit, anda sensor responsive to said magnet, said magnet causing said sensor to provide a trigger signal to said transmitter when said magnet is proximate said sensor, said trigger signal causing said transmitter to transmit a signal wirelessly, said transmitter receiving power from said storage unit to transmit said signal, said signal including a series of pulses with each pulse corresponding to when said magnet is positioned proximate to said sensor; and
a receiving unit includinga receiver responsive to said signal from said transmitter,a unit for decoding said signal received by said receiver, said unit determining a time value equal to a time difference between two successive signals from said transmitter, anda display unit for displaying a parameter value associated with said moving component, said parameter value related to said time value.
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Accused Products
Abstract
A system with a self-powered sending unit communicating with a receiving unit. The sending unit interacts with a magnet attached to a rotating or moving member. The sending unit includes an inductor that intercepts the magnetic field from the magnet. The magnetic interaction with the sending unit generates power that is stored for later use by a transmitter. The magnetic interaction also provides a trigger for the transmitter that causes the transmitter to send a signal using the stored energy. In one embodiment, the signal includes a identification code that uniquely identifies the sending unit. A receiving unit includes a receiver responsive to the transmitted signal and, in one embodiment, a display of the measured parameter that is projected by a heads-up display unit.
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Citations
20 Claims
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1. An apparatus for a wireless monitoring system, said apparatus comprising:
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at least one transmitting unit including an inductor responsive to a magnetic field from a magnet attached to a moving component, a storage unit connected to said inductor, said storage unit storing energy generated from an interaction between said inductor and said magnet, a transmitter powered by said storage unit, and a sensor responsive to said magnet, said magnet causing said sensor to provide a trigger signal to said transmitter when said magnet is proximate said sensor, said trigger signal causing said transmitter to transmit a signal wirelessly, said transmitter receiving power from said storage unit to transmit said signal, said signal including a series of pulses with each pulse corresponding to when said magnet is positioned proximate to said sensor; and a receiving unit including a receiver responsive to said signal from said transmitter, a unit for decoding said signal received by said receiver, said unit determining a time value equal to a time difference between two successive signals from said transmitter, and a display unit for displaying a parameter value associated with said moving component, said parameter value related to said time value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for transmitting information within a wireless monitoring system, said apparatus comprising:
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an inductor responsive to a magnetic field from a magnet attached to a moving component; a storage unit connected to said inductor, said storage unit storing energy generated from an interaction between said inductor and said magnet; a transmitter powered by said storage unit; and a sensor responsive to said magnet, said transmitter triggered to transmit wirelessly a pulse when said magnet is positioned proximate to said sensor. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An apparatus for transmitting information within a wireless monitoring system, said apparatus comprising:
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a first sending unit monitoring a first parameter; a second sending unit monitoring a second parameter, each one of said first and second sending units including an inductor responsive to a magnetic field from a magnet attached to a moving component, a storage unit connected to said inductor, said storage unit storing energy generated from an interaction between said inductor and said magnet, a sensor responsive to said magnetic field from said magnet, a transmitter sending a signal including a plurality of pulses corresponding to when said magnet is positioned proximate to said sensor, said transmitter receiving power from said storage unit to transmit said signal wirelessly; and a receiving unit responsive to said signal from each of first sending unit and said second sending unit, said receiving unit decoding a value of said first parameter and a value of said second parameter from said signals from said first sending unit and said second sending unit. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification