Tire pressure monitoring system
First Claim
1. A tire pressure monitoring system comprising:
- at least one tire pressure gauge configured to be mounted on a valve-stem of a tire comprising;
a radio frequency (RF) transmit/receive module for sending and receiving data indicative of a tire pressure wirelessly via a two-way wireless communication;
a first processor;
a first memory in communication with said first processor; and
a pressure sensor configured for detecting a tire pressure of a tire and for transmitting a signal containing a value indicative of the detected tire pressure to said first processor;
wherein said first processor is configured to store the value indicative of the detected tire pressure in said first memory and to instruct said first RF transmit/receive module to transmit a wireless signal containing data indicative of the tire pressure detected by said pressure sensor; and
wherein said first processor is configured to instruct said first RF transmit/receive module to transmit a wireless signal only when the value of a tire pressure detected by said pressure sensor differs from a previous tire pressure value stored in said first memory by an amount exceeding a threshold value;
a remote display unit comprising;
a second RF transmit/receive module configured for two-way wireless communication with said first RF transmit/receive module;
a second processor in communication with said second RF transmit/receive module;
a second memory in communication with said second processor; and
a display in communication with said second processor and configured to display data indicative of a tire pressure received from said first RF transmit/receive module, said display comprising;
at least one first graphical element corresponding to a tire, said at least one graphical element configured to display data indicative of a tire pressure of said corresponding tire to a user;
a second graphical element configured to display a plurality of pressure units for selection by a user, wherein selection of a pressure unit by a user causes said first processor to instruct said at least one first graphical element to display the tire pressure of the corresponding tire in the selected pressure unit; and
at least one third graphical element corresponding to the tire, said at least one third graphical element comprising a graphical bar configured to render a color display corresponding to a tire pressure status of said corresponding tire to a user, said graphical bar including at least a first portion configured to generate a green display corresponding to the tire pressure status of the corresponding tire being within an acceptable range of a pre-set pressure threshold as determined by said first processor, and a second portion configured to generate a red display corresponding to the tire pressure status of the corresponding tire being outside of the acceptable range of the pre-set pressure threshold as determined by said first processor.
1 Assignment
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Accused Products
Abstract
A tire pressure monitoring system includes a tire valve stem mounted tire pressure gauge and an externally powerable remote display unit. The pressure gauge includes a pressure sensor, a wake circuit, a processor, and a first radio frequency (RF) module. The remote display unit includes a second RF module and a display. The wake circuit is adapted to activate the processor periodically at a predetermined interval of time and causes the processor to receive an output signal from the pressure sensor. The output of the pressure sensor is indicative of a tire pressure detected by the pressure sensor. The remote display unit is adapted to display the measured tire pressure value without any user input.
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Citations
9 Claims
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1. A tire pressure monitoring system comprising:
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at least one tire pressure gauge configured to be mounted on a valve-stem of a tire comprising; a radio frequency (RF) transmit/receive module for sending and receiving data indicative of a tire pressure wirelessly via a two-way wireless communication; a first processor; a first memory in communication with said first processor; and a pressure sensor configured for detecting a tire pressure of a tire and for transmitting a signal containing a value indicative of the detected tire pressure to said first processor; wherein said first processor is configured to store the value indicative of the detected tire pressure in said first memory and to instruct said first RF transmit/receive module to transmit a wireless signal containing data indicative of the tire pressure detected by said pressure sensor; and wherein said first processor is configured to instruct said first RF transmit/receive module to transmit a wireless signal only when the value of a tire pressure detected by said pressure sensor differs from a previous tire pressure value stored in said first memory by an amount exceeding a threshold value; a remote display unit comprising; a second RF transmit/receive module configured for two-way wireless communication with said first RF transmit/receive module; a second processor in communication with said second RF transmit/receive module; a second memory in communication with said second processor; and a display in communication with said second processor and configured to display data indicative of a tire pressure received from said first RF transmit/receive module, said display comprising; at least one first graphical element corresponding to a tire, said at least one graphical element configured to display data indicative of a tire pressure of said corresponding tire to a user; a second graphical element configured to display a plurality of pressure units for selection by a user, wherein selection of a pressure unit by a user causes said first processor to instruct said at least one first graphical element to display the tire pressure of the corresponding tire in the selected pressure unit; and at least one third graphical element corresponding to the tire, said at least one third graphical element comprising a graphical bar configured to render a color display corresponding to a tire pressure status of said corresponding tire to a user, said graphical bar including at least a first portion configured to generate a green display corresponding to the tire pressure status of the corresponding tire being within an acceptable range of a pre-set pressure threshold as determined by said first processor, and a second portion configured to generate a red display corresponding to the tire pressure status of the corresponding tire being outside of the acceptable range of the pre-set pressure threshold as determined by said first processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification