Method for locating tire condition sensing apparatuses
First Claim
1. A method for locating tire condition sensing apparatuses, wherein said method is used for recognizing a plurality of tire condition sensing apparatuses mounted on a vehicle, said method comprising:
- providing a plurality of antennas, wherein said antennas are corresponding to said tire condition sensing apparatuses;
turning on said antennas for receiving and decoding a signal emitted from one of said tire condition sensing apparatuses;
generating a first signal intensity, wherein said signal includes an identification code belonging to said one of said tire condition sensing apparatuses emitting said signal;
alternately turning on/off each of said antennas so as to obtain a plurality of second signal intensities;
respectively comparing each of said second signal intensities with said first signal intensity so as to obtain a plurality of signal intensity changes;
comparing said signal intensity changes so as to obtain a maximum value; and
determining the location of said one of said tire condition sensing apparatuses which is emitting said signal, wherein said maximum value is generated while one of said antennas is being turned on/off, so that said one of said tire condition sensing apparatuses is corresponding to said one of said antennas.
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Abstract
A method is disclosed for locating a plurality of tire condition sensing apparatuses mounted on a vehicle. At first, all of the antennas in the vehicle are maintained at an activation status for receiving and decoding a signal transmitted from one of tire condition sensing apparatuses of the tired, and a signal intensity is obtained. When a tire condition sensing apparatus is assured to continuously emit the signal, the antennas are alternatively turned on an off so as to obtain a plurality of signal intensity changes, and the tire condition sensing apparatus is located on the tire to which the antenna producing the maximum value of the signal intensity changes is corresponding.
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Citations
18 Claims
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1. A method for locating tire condition sensing apparatuses, wherein said method is used for recognizing a plurality of tire condition sensing apparatuses mounted on a vehicle, said method comprising:
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providing a plurality of antennas, wherein said antennas are corresponding to said tire condition sensing apparatuses; turning on said antennas for receiving and decoding a signal emitted from one of said tire condition sensing apparatuses; generating a first signal intensity, wherein said signal includes an identification code belonging to said one of said tire condition sensing apparatuses emitting said signal; alternately turning on/off each of said antennas so as to obtain a plurality of second signal intensities; respectively comparing each of said second signal intensities with said first signal intensity so as to obtain a plurality of signal intensity changes; comparing said signal intensity changes so as to obtain a maximum value; and determining the location of said one of said tire condition sensing apparatuses which is emitting said signal, wherein said maximum value is generated while one of said antennas is being turned on/off, so that said one of said tire condition sensing apparatuses is corresponding to said one of said antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for locating tire condition sensing apparatuses, wherein said method is used for recognizing a plurality of tire condition sensing apparatuses mounted on a vehicle, and said tire condition sensing apparatuses in turn periodically every a first period of time emit signals lasting a second period of time, said method comprising:
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providing a plurality of antennas, wherein said antennas are mounted on the locations near said tire condition sensing apparatuses; entering a locating mode; turning on all of said antennas; receiving and decoding a signal, wherein said signal includes an identification code belonging to a first tire condition sensing apparatus of said tire condition sensing apparatuses; determining if said signal is continuously emitted during a third period of time and obtaining a first decision result; obtaining a signal intensity generated after said antennas commonly receive said signal, when said first decision result is yes; determining if said identification code belongs to said vehicle, and obtaining a second decision result; and performing a signal-locating step when said decision result is yes, wherein said signal-locating step comprises; rapidly turning on/off said antennas alternately so as to generate a plurality of signal intensity changes after said antennas commonly receive said signal, wherein the on or off status of each of said antennas is maintained for a fourth period of time, and the sum of said third period of time and the operation time required for performing said step of alternately turning on/off said antennas is smaller than said second period of time; comparing said signal intensity changes so as to obtain a maximum value; and determining the location of said first tire condition sensing apparatus which is emitting said signal, wherein said maximum value is generated while a first antenna of said antennas is being turned on/off, so that said first tire condition sensing apparatus is corresponding to said first antenna. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification