Denso Corporation

Yoshinori Atake

Kousuke Yamaoka

A data collection system includes: an alternativity determination unit determining whether or not data has alternativity, allowing replacement of the data with alternative data when a data necessity inquiry transmitted from an in-vehicle terminal is received by a center-side reception unit; and a center-side transmission unit (i) transmitting a discard notice back to the in-vehicle terminal that has transmitted the data necessity inquiry, and letting the in-vehicle terminal to discard the data based on a determination by the alternativity determination unit that the data has alternativity, and (ii) transmitting a keeping notice back to the in-vehicle terminal that has transmitted the data necessity inquiry, and letting the in-vehicle terminal to keep the data based on a determination by the alternativity determination unit that the data has no alternativity.

Data collection system, collection center and data collection method

An in-vehicle terminal includes: a communication unit; a necessity determination unit; a basic life determination unit that determines a life of data; a life correction unit that corrects the basic life determined by the basic life determination unit according to factors presumed to affect data fluctuations/data change; and a transmission determination unit that determines a transmission order of the data by the data transmission unit based on (i) the transmission necessity of the data determined by the necessity determination unit and (ii) a post-correction life corrected by the life correction unit, in a manner that (a) data having the higher transmission necessity and/or the shorter post-correction life has an earlier transmission order while (b) data having the lower transmission necessity and/or the longer post-correction life has a later transmission order.

Growing community of inventors

Kariya, Japan

Yoshinori Atake