Sensor assembly for determining a physical property of a vehicle including a locking arrangement and first and second controllable switches
US11913848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2020 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Oct 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0705
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor assembly providing a physical property of a vehicle, e.g. tire pressure of a wheel of an aircraft, comprises electronic circuitry including a locking arrangement and sensor suited to sense the physical property and an exhaustable power source, e.g. a battery. For prolonged shelf life, a first and a second switch are functionally arranged between power source and circuitry. The second switch is controlled by the locking arrangement, whereas the first switch is controllable from outside the sensor assembly, e.g. by a magnetic field. The first switch is arranged to switch the power to the electronic circuitry, whereby the locking arrangement is powered, too. In consequence, the locking arrangement is capable to close the second switch. Thereafter, a further stimulus to the first switch will no more be capable to switch the sensor off, unless the locking arrangement enables it again by opening the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.