| US 7,490,793 B2 | ||
| Wireless landing gear monitoring system | ||
| Robert F. Mackness, Marysville, Wash. (US) | ||
| Assigned to The Boeing Company, Chicago, Ill. (US) | ||
| Filed on Oct. 18, 2002, as Appl. No. 10/273,659. | ||
| Prior Publication US 2004/0075022 A1, Apr. 22, 2004 | ||
| Int. Cl. B64C 25/34 (2006.01) | ||
| U.S. Cl. 244—100R | 16 Claims |
| 1. A wireless aircraft landing gear monitoring system for monitoring the operational status of landing gear systems, said
monitoring system comprising:
a plurality of radio frequency (RF) wireless hubcap transceivers, one of said hubcap transceivers mounted to each hubcap of
each of a plurality of nose landing gear wheels and each hubcap of each of a plurality of main landing gear wheels included
in a landing gear;
a plurality of distant transceivers, each said distant transceiver adapted to wirelessly communicate with said hubcap transceiver
to:
acquire and store mapping data and identity markers used to identify in which of the nose and main landing gears each said
hubcap transceiver is located and a positional location of each said hubcap transceiver relative to the other wheels within
the respective landing gear; and
transmit a copy of the mapping data and the identity markers to at least one of the other distant transceivers;
a wheel speed sensor mounted to the hubcap adapted to provide data pertaining to the rotational speed of the landing gear
wheel; and
a permanent magnet generator (PMG) mounted to the hubcap adapted to utilize rotation of the landing gear wheel to generate
current used to provide power for said hubcap transceiver and said wheel speed sensor.
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