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Title:
WIRELESS OCCUPANCY SENSORS AND METHODS FOR USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2022/120220
Kind Code:
A3
Abstract:
Wireless occupancy sensors and methods for using the same are provided. In some embodiments, an occupancy sensor includes: a magnetometer that detects changes in a magnetic field when a vehicle moves over the magnetometer; an optical sensor that detects one or more objects in a field of view of the optical sensor; a transmitter for transmitting sensor data to a gateway device, and a processor that controls the magnetometer, the optical sensor, and the transmitter. In some embodiments, the processor is configured to: detect, using the magnetometer, that a change in the magnetic field is greater than a particular threshold value; in response to the magnetometer detecting that the change in the magnetic field is greater than the particular threshold value, activating the optical sensor; receive, using the optical sensor, the sensor data associated with the one or more objects in the field of view of the optical sensor; and transmit, using the transmitter, the sensor data to the gateway device.

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Inventors:
KENNEDY THOMAS (US)
Application Number:
PCT/US2021/061879
Publication Date:
August 18, 2022
Filing Date:
December 03, 2021
Export Citation:
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Assignee:
SIDEWALK LABS LLC (US)
International Classes:
G07B15/00; G06K9/00; G08G1/14
Foreign References:
US20170168155A12017-06-15
US20110163894A12011-07-07
US10514399B12019-12-24
US20100309024A12010-12-09
US20180054490A12018-02-22
US20170154368A12017-06-01
Other References:
BAKER CHARLES D, POLITO KARYN E, POLLACK STEPHANIE: "Improved Highway Lane Reflectorized Markers", TECHNICAL REPORT, 1 February 2016 (2016-02-01), pages 1 - 65, XP055963897
Attorney, Agent or Firm:
POH, Philip, R. et al. (US)
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