US 12,284,643 B2
In-vehicle terminal, data collection system, and data transmission system
Yoshinori Atake, Kariya (JP); and Kousuke Yamaoka, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Feb. 22, 2021, as Appl. No. 17/180,898.
Claims priority of application No. 2020-032891 (JP), filed on Feb. 28, 2020.
Prior Publication US 2021/0274517 A1, Sep. 2, 2021
Int. Cl. H04W 72/12 (2023.01); H04W 72/02 (2009.01); H04W 72/566 (2023.01)
CPC H04W 72/1221 (2013.01) [H04W 72/02 (2013.01); H04W 72/569 (2023.01); H04W 72/566 (2023.01)] 7 Claims
OG exemplary drawing
 
1. An in-vehicle terminal for use in a vehicle, the in-vehicle terminal comprising:
a data transmitter configured to transmit data stored in a storage in the vehicle to a center located outside of the vehicle;
a necessity determiner configured to determine a higher transmission necessity for the data having higher necessity of transmission;
a basic life determiner configured to determine a life of data required to have higher real-timeness, or freshness, in a manner that the higher the required real-timeness is, the shorter a basic life becomes;
a life corrector configured to perform, before the data is stored in the storage, correction of the basic life determined by the basic life determiner according to life factors that may affect data fluctuations or data change, based on a calculation of a data value (V) including a post-correction life (Lc); and
a transmission determiner configured to determine, before the data transmitter transmits the data stored in the storage, a transmission order of the data by the data transmitter based on (i) the transmission necessity of the data determined by the necessity determiner and (ii) the Lc corrected by the life corrector, in a manner that (a) data having the higher transmission necessity and/or the shorter corrected life has an earlier transmission order while (b) data having the lower transmission necessity and/or the longer corrected life has a later transmission order;
wherein:
the transmission determiner is further configured to determine that the data is not transmitted when the data value (V) of the data re-calculated before transmission of the data stored in the storage unit includes the Lc of zero;
the data transmitter is configured to not transmit the data including the Lc of zero;
the necessity determiner, the basic life determiner, the life corrector, and the transmission determiner are implemented by a processor and memory;
the life factors at least include an average traffic flow rate at a position where the data is acquired by the vehicle; and
the life corrector corrects the basic life determined by the basic life determiner to be shorter as the average traffic flow rate increases, such that the corrected life is generated.