Patent · US Active

Method for adjusting time stamps during the acquisition of sensor data

US10601571B2 · kind B2 · utility

1Cited by

1References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Christian Haubelt · Kritzmow, DE
Rainer Dorsch · Reutlingen, DE
Sebastian Stieber · Rostock, DE
Shengxian Liu · Shanghai, CN

Key dates

Filing date	Jul 18, 2018
Grant date	Mar 24, 2020
Priority date	—
Expiry date	Jul 18, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2209/753
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for synchronizing sensor data of a sensor system with the host time base of a host system, based on the clock ratio of the sensor time base to the host time base. To ascertain the clock ratio for at least two communication events, a time stamp acquisition is performed for each event, in which a sensor time stamp and a host time stamp is recorded. The communication events for ascertaining the clock ratio relate to a specific quantity of data. The ratio is ascertained/updated repeatedly; the duration of the individual communication events for the time stamp acquisition are measured; and by comparing each measured duration to a comparison value, possible irregularities in the communication event are detected. The host time stamp of a time stamp acquisition is corrected/replaced by a calculated host time stamp based on the measured irregularities. Also described is a related device for the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.