Systems and methods using a reference marker
First Claim
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1. A tire pressure monitor sensor comprising:
- an accelerometer to perform acceleration measurements;
a processing unit to provide a time trigger signal within a measurement period and to trigger a wireless transmission of a reference signal indicating an occurrence of the time trigger signal to a remote unit, wherein the reference signal is based on measurement of a reference condition, wherein the measurement period is a duration of time to derive information;
wherein the tire pressure monitor sensor is configured to derive the information, based on a plurality of acceleration measurement samples within the measurement period and the reference signal, information indicating at least one rotation property of a tire; and
wherein the tire pressure monitor sensor is further configured to wirelessly transmit the derived information to a remote unit separate from the reference signal.
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Abstract
A tire pressure monitor sensor is disclosed. The sensor includes a wireless transmitter and a processing unit. The processing unit provides a time trigger signal within a measurement period and triggers a wireless transmission of a reference signal indicating an occurrence of the time trigger signal to a remote unit. The tire pressure monitor sensor is configured to derive, based on a plurality of acceleration measurement samples within the measurement period, information indicting at least one rotation property of a tire. The tire pressure monitor sensor is further configured to wirelessly transmit the derived information to a remote unit separate from the reference signal.
10 Citations
20 Claims
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1. A tire pressure monitor sensor comprising:
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an accelerometer to perform acceleration measurements; a processing unit to provide a time trigger signal within a measurement period and to trigger a wireless transmission of a reference signal indicating an occurrence of the time trigger signal to a remote unit, wherein the reference signal is based on measurement of a reference condition, wherein the measurement period is a duration of time to derive information; wherein the tire pressure monitor sensor is configured to derive the information, based on a plurality of acceleration measurement samples within the measurement period and the reference signal, information indicating at least one rotation property of a tire; and wherein the tire pressure monitor sensor is further configured to wirelessly transmit the derived information to a remote unit separate from the reference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tire pressure monitoring system comprising:
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a plurality of sensors including a first sensor associated with a first tire and a second sensor associated with a second tire, wherein the plurality of sensors are each configured to generate a reference frame indicating occurrence of a time trigger and generate derived information in a subsequent data frame, wherein the derived information is information indicative of a rotation property of the tire at the occurrence of the time trigger; at least one component configured to generate an information stream related to at least a rotation of a first wheel axis associated with the first tire and a rotation of a second wheel axis associated with the second tire; and a control unit configured to receive the reference frames and data frames from each of the plurality of sensors, to receive the information stream and to determine a tire location of the first tire and a tire location of the second tire based on the reference frames, the data frames and a portion of information of the information stream. - View Dependent Claims (15, 16, 17, 18)
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19. A method of operating a tire pressure management system, the method comprising:
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generating a time trigger signal by a sensor within a measurement period and triggering wireless transmission of a reference signal to a remote unit; generating a derived value by the sensor within the measurement period, wherein the derived value indicates at least one rotation property of a tire, wherein the measurement period is a duration of time to generate the derived value; wirelessly transmitting the derived value to the remote unit subsequent to transmitting the reference signal; storing a portion of an information stream from a component into a buffer based on receipt of the reference signal; and generating correlation information by the remote unit based on the stored portion and the derived value. - View Dependent Claims (20)
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Specification