公开(公告)号：US20190112075A1

公开(公告)日：2019-04-18

申请号：US15730994

申请日：2017-10-12

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Robert Kalmar ,  Patrik Moravek ,  David Kubat ,  Petr Axman

IPC: B64F5/60 ,  G07C3/14 ,  G07C3/08

Abstract: Distributed monitoring systems and data synchronization methods are provided for monitoring a vehicle, such as a rotorcraft. One exemplary method involves a mobile device broadcasting measurement synchronization messages corresponding to a measurement window to measurement units onboard the vehicle over a wireless network, obtaining synchronization timestamp data corresponding to the measurement synchronization messages from each of the measurement units, obtaining measurement data obtained during the measurement window from the measurement units, and associating samples of measurement data from a first measurement unit with one or more samples of measurement data from a second measurement unit based on the synchronization timestamp data. In this manner, measurement data samples from different measurement units having different clock frequencies operating independently or asynchronously with respect to one another may be retrospectively synchronized before characterizing a condition of the vehicle based at least in part on the temporally associated measurement data samples.