Tire pressure sensor device
First Claim
1. A tire pressure sensor device for a wheel of an aircraft, wherein the tire pressure sensor device comprises:
- a housing,a pressure sensor configured to measure an internal pressure of a tire of the wheel,a temperature sensor configured to measure a temperature local to the tire,a motion sensor configured to ascertain a period within which the wheel has stopped spinning following take-off of the aircraft;
a memory unit local to the tire configured to store data, anda control unit local to the tire arranged to record in the memory unit data in respect of multiple readings over time, wherein the multiple readings include a reading taken while the aircraft is on the ground and while the wheel is stopped, and another reading taken while the aircraft is in flight and at least 10 minutes after the wheel has stopped spinning;
wherein the housing accommodates at least the control unit and the memory unit, andthe data recorded for each of the multiple readings includes an indication of a time of the reading, a pressure as measured by the pressure sensor, and a temperature as measured by the temperature sensor.
1 Assignment
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Accused Products
Abstract
A tire pressure sensor device (122) for a wheel (112) of an aircraft (102) including a pressure sensor (124) for measuring the internal pressure of a tire, a temperature sensor (126) for measuring a temperature local to the tire (116), a memory unit (131) local to the tire for storing data, and a control unit (128) local to the tire arranged to record in the memory unit (131) data of the readings taken at intervals of time. The data recorded for each reading includes an indication of the time of the reading, the tire pressure and the temperature local to the tire. Measurements may be taken and recorded over time, both when the aircraft is on the ground and when the aircraft is in flight. Data may be uploaded to a portable handheld device (140) for analysis when maintaining the tires in their correctly inflated state.
16 Citations
21 Claims
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1. A tire pressure sensor device for a wheel of an aircraft, wherein the tire pressure sensor device comprises:
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a housing, a pressure sensor configured to measure an internal pressure of a tire of the wheel, a temperature sensor configured to measure a temperature local to the tire, a motion sensor configured to ascertain a period within which the wheel has stopped spinning following take-off of the aircraft; a memory unit local to the tire configured to store data, and a control unit local to the tire arranged to record in the memory unit data in respect of multiple readings over time, wherein the multiple readings include a reading taken while the aircraft is on the ground and while the wheel is stopped, and another reading taken while the aircraft is in flight and at least 10 minutes after the wheel has stopped spinning; wherein the housing accommodates at least the control unit and the memory unit, and the data recorded for each of the multiple readings includes an indication of a time of the reading, a pressure as measured by the pressure sensor, and a temperature as measured by the temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A self-contained tire pressure sensor device for a wheel of an aircraft comprising:
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a housing, a pressure sensor adapted to measure an internal pressure of a tire of the wheel, a temperature sensor adapted to measure a temperature local to the tire, a motion sensor configured to ascertain a period within which the wheel has stopped moving relative to the aircraft following take-off of the aircraft; a non-transitory memory unit configured to store data, a control unit adapted to; receive readings from the pressure sensor and from the temperature sensor; receive data generated by the motion sensor indicative of the period within which the wheel has stopped the movement; record data from the readings in the non-transitory memory unit such that the data corresponds to at least three of the readings taken at intervals of at least ten minutes, wherein the multiple readings include a reading taken while the aircraft is on the ground and while the wheel is stopped, and another reading taken while the aircraft is in flight and at least 10 minutes after the wheel has stopped moving relative to the aircraft; wherein the data recorded for each of the readings includes an indication of the time of the reading, an indication of the pressure measured by the pressure sensor, and an indication of the temperature measured by the temperature sensor, and a source of electric power adapted to power at least the control unit, wherein the housing accommodates; at least a part of the pressure sensor, at least a part of the temperature sensor, the memory unit, the control unit, and the source of electric power. - View Dependent Claims (13, 14, 15)
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16. A method of monitoring the pressure of a tire on an aircraft comprising:
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a control unit receiving data indicating whether the tire is spinning; the control unit causing first measurements to be taken of tire pressure and of an associated temperature local to the tire, the control unit recording in a memory unit first data including an indication of the time at which the first measurements are taken, an indication of the tire pressure and an indication of the temperature as so measured by the first measurements, the control unit causing a second measurement to be taken of the tire pressure and of an associated temperature, and the control unit recording in the memory unit second data including an indication of the time at which the second measurements are taken, an indication of the tire pressure and an indication of the temperature as so measured by the second measurements, one of the first and second measurements being taken when the aircraft is on the ground and the tire is not spinning, and the other of the first and second measurements being taken when the aircraft is in flight and after at least ten minutes has elapsed since the tire has stopped spinning, wherein the second measurement is within twenty-four hours of the first measurement. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification