Center device, data distribution system, and computer program product for executing restriction on function of data

Patent metadata

Field	Value
Publication number	US-2021375079-A1
Application number	US-202117403464-A
Country	US
Kind code	A1
Filing date	Aug 16, 2021
Priority date	Feb 25, 2019
Publication date	Dec 2, 2021
Grant date	—

Abstract

A center device includes a distribution control unit that is configured to control distribution of data to a plurality of vehicles; a defect detection unit that is configured to detect a defect in the data that was distributed; a restriction execution unit that is configured to cause the plurality of vehicles to restrict a function and/or performance of the data from which the defect is detected; and a grouping unit that divides the plurality of vehicles as restriction targets into groups according to contents of restriction on the function and/or performance. The restriction execution unit is further configured to cause the plurality of vehicles to restrict the function and/or performance of the data from which the defect is detected for each of the groups that are divided by the grouping unit.

First claim

What is claimed is:

1 . A center device, comprising:
a distribution control unit that is configured to control distribution of data to a plurality of vehicles; a defect detection unit that is configured to detect a defect in the data that was distributed; a restriction execution unit that is configured to cause the plurality of vehicles to restrict a function and/or performance of the data from which the defect is detected when the defect is detected by the defect detection unit; and a grouping unit that divides the plurality of vehicles as restriction targets into groups according to contents of restriction on the function and/or performance, wherein the restriction execution unit is further configured to cause a master device of each of the plurality of vehicles to restrict the function and/or performance of the data from which the defect is detected for each of the groups that are divided by the grouping unit.

2 . The center device according to claim 1 , further comprising:
a vehicle information acquisition unit that is configured to acquire vehicle information from the plurality of vehicles; and a vehicle information analysis unit that is configured to analyze the vehicle information acquired by the vehicle information acquisition unit, wherein the defect detection unit is configured to detect the defect in the data that was distributed using an analysis result by the vehicle information analysis unit.

3 . The center device according to claim 1 , further comprising:
an external information acquisition unit that is configured to acquire external information; and an external information analysis unit that is configured to analyze the external information acquired by the external information acquisition unit, wherein the defect detection unit is configured to detect the defect in the data that was distributed using an analysis result by the external information analysis unit.

4 . The center device according to claim 1 , wherein
the restriction execution unit is further configured to cause the master device of each of the plurality of vehicles to restrict the function and/or performance of the data from which the defect is detected by distributing, to each of the plurality of vehicles, a command for restricting the function and/or performance of the data from which the defect is detected.

5 . The center device according to claim 1 , wherein
the restriction execution unit is further configured to:
determine whether each of the plurality of vehicles is in a travelling state; and
cause the master device of each of the plurality of vehicles to restrict the function and/or performance according to a determination result.

6 . A data distribution system, comprising:
a center device that is configured to cause a vehicle to restrict a function and/or performance of data from which a defect is detected upon detecting the defect in the data that was distributed to the vehicle; and a vehicle master device that is configured to restrict the function and/or performance of the data from which the defect is detected.

7 . A computer program product embodied on a computer readable storage medium, the computer program product comprising:
instructions for causing a center device to perform:
detecting a defect in data that was distributed to a vehicle; and
causing a vehicle to restrict a function and/or performance of the data from which the defect is detected.

Assignees

• Denso Corp

Inventors

• Sakurai Nao
• Ozaki Yoshitaka

Classifications

• G06F11/3013

  where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems (testing or monitoring of control systems or parts thereof G05B23/02) · CPC title

• G06F8/65 Primary

  Updates (security arrangements therefor G06F21/57) · CPC title

• G06F11/0739

  in a data processing system embedded in automotive or aircraft systems · CPC title

• G06F11/0751

  Error or fault detection not based on redundancy (power supply failures G06F1/30; network fault management H04L41/06) · CPC title

• G06F11/0793

  Remedial or corrective actions (recovery from an exception in an instruction pipeline G06F9/3861; by retry G06F11/1402; for recovering from a failure of a protocol instance or entity H04L69/40) · CPC title