US 12,450,953 B2
In-vehicle device, vehicle movement analysis system
Kyoko Ishida, Tokyo (JP); Goshi Sasaki, Tokyo (JP); and So Sasatani, Tokyo (JP)
Assigned to Hitachi Astemo, Ltd., Hitachinaka (JP)
Appl. No. 17/925,586
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Feb. 24, 2021, PCT No. PCT/JP2021/006824
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2021/245999, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 2020-097354 (JP), filed on Jun. 4, 2020.
Prior Publication US 2023/0196847 A1, Jun. 22, 2023
Int. Cl. G07C 5/00 (2006.01); B60W 40/04 (2006.01); G06T 7/20 (2017.01); G06T 7/50 (2017.01); G06T 7/70 (2017.01); G06V 20/58 (2022.01); G08G 1/16 (2006.01)
CPC G07C 5/008 (2013.01) [B60W 40/04 (2013.01); G06T 7/20 (2013.01); G06T 7/50 (2017.01); G06T 7/70 (2017.01); G06V 20/58 (2022.01); G08G 1/166 (2013.01); B60W 2554/80 (2020.02); G06T 2207/30261 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An in-vehicle device mounted on a vehicle, the in-vehicle device comprising a controller configured to:
acquire data indicating a state of the vehicle and a surrounding situation of the vehicle;
recognize an operation of the vehicle using the data;
recognize an operation of a surrounding object of the vehicle using the data;
select at least one of a record described in the data in which a numerical value representing the operation of the vehicle is equal to or greater than a first threshold or a record described in the data in which a numerical value representing the operation of the surrounding object is equal to or greater than a second threshold value; and
output the record among records described in the data;
identify an operation of the vehicle for each record described in the data;
identify the operation of the surrounding object for each record described in the data; and
select a record described in the data by setting, for each record, a sampling period of a record to be sampled from the data among the records described in the data; wherein
for the record in which the numerical value representing the operation of the surrounding object is equal to or greater than the second threshold, the controller sets the sampling period to a third period;
for the record in which the numerical value representing the operation of the surrounding object is less than the second threshold, the controller is configured to set the sampling period to a fourth period longer than the third period; and
output compressed data in which a data size of the data is compressed by sampling the record described in the data according to the sampling period.