公开(公告)号：US20220099459A1

公开(公告)日：2022-03-31

申请号：US17547619

申请日：2021-12-10

Applicant: DENSO CORPORATION

Inventor： Hirohisa WATANABE

IPC: G01C21/00 ,  G01C21/34 ,  B60W60/00 ,  H04W4/40

Abstract: A map data generation system includes: in-vehicle apparatuses respectively provided in vehicles: and a data center communicably connected with the in-vehicle apparatuses. In the data center, probe data are collected from the in-vehicle apparatuses for performing a road map data generating and updating process of generating and updating a road map data. A shortage road unit is determined to be one of data management units corresponding to road sections, road links, or meshes into which a map is divided, and have a shortage in a required number of probe data to perform the road map data generating and updating process. A notification indicating the shortage road unit is issued to the in-vehicle apparatuses. In the in-vehicle apparatus, a guidance for the vehicle to travel on the shortage road unit is provided in response to receiving the notification from the data center.

公开(公告)号：US20220099458A1

公开(公告)日：2022-03-31

申请号：US17547546

申请日：2021-12-10

Applicant: DENSO CORPORATION

Inventor： Hirohisa WATANABE

IPC: G01C21/00 ,  B60W50/029

Abstract: A map data generation apparatus is provided as follows. Probe data are collected from a plurality of vehicles. An integration process is performed to generate an integrated map data by integrating the collected probe data for each of data management units corresponding to (i) road sections, (ii) road links, or (iii) meshes into which a map is divided. A comparison process is performed to obtain a difference by comparing the generated integrated map data with a basic map data. The basic map data is updated based on the obtained difference. The integrated map data for a first data management unit is generated in response to a required number of the probe data being collected for the first data management unit. The required number of the probe data is set depending on a road type in the first data management unit.

公开(公告)号：US20240102823A1

公开(公告)日：2024-03-28

申请号：US18525674

申请日：2023-11-30

Applicant: DENSO CORPORATION

Inventor： Shigehiro MUTO ,  Tomoo NOMURA ,  Toshio NOMURA ,  Satoshi HORIHATA ,  Hirohisa WATANABE

IPC: G01C21/00 ,  G06T5/70 ,  G06V20/56

CPC classification number: G01C21/3815 ,  G01C21/3837 ,  G06T5/70 ,  G06V20/588 ,  G06T2207/30256

Abstract: A map update system includes a map data storage unit storing therein map data. The map update system acquires a position of a road marking painted on a surface of a road. The map update system acquires a determination value to be subjected to determination of blurring of the road marking based on at least either of measurement information on the road marking and analysis information analyzing the measurement information. The map update system compares the determination value to a reference value and acquires blur information indicating a degree of blurring of the road marking. The map update system reflects the blur information in the map data.

公开(公告)号：US20230017377A1

公开(公告)日：2023-01-19

申请号：US17929472

申请日：2022-09-02

Applicant: DENSO CORPORATION

Inventor： Hirohisa WATANABE

IPC: G01C21/36 ,  G01C21/34 ,  G05D1/00

Abstract: An on-board device for a vehicle includes an unavailability location determination unit configured to determine whether an area around where the vehicle is traveling is an autonomous driving unavailable location, and a transmission control unit configured to cause the on-board device to transmit to a server a result of determination made by the unavailability location determination unit.