Road shape information generator, road shape information distribution system and road shape information generation program
AssigneeDenso Corporation
InventorMasayoshi Kayano
Life of this patent
Estimating the term…
Abstract
A road shape information generator is provided. The road shape information generator includes a sensor value obtainer that obtains a sensor value acting, when a vehicle travels, on the vehicle, a road shape information generator that generates information about a road shape as road shape information based on the sensor value obtained by the sensor value obtainer, and a storage controller that stores, in a road shape information storage, the road shape information generated by the road shape information generator.
Claims15
A road shape information generator, comprising:
- a road shape information storage;
- and
- a controller configured to:
- obtain a sensor value acting, when a vehicle travels on a road section, on the vehicle;
- generate information about a road shape of the road section as current road shape information based on the obtained sensor value;
- determine whether the road shape information storage already contains previous road shape information for the road section;
- and
- in response determining that the road shape information storage already contains the previous road shape information for the road section, (i) generate average road shape information by averaging the current road shape information with the previous road shape information, (ii) store the average road shape information in the road shape information storage, (iii) determine current coordinates representing a current location of the vehicle when the current road shape information is generated, (iv) determine a difference between the current coordinates representing the current location of the vehicle and previous coordinates representing a previous location of the vehicle when the previous road shape information was generated, (v) compare the difference with a predetermined value, (vi) in response to the difference being greater than the predetermined value, store the current coordinates as latest coordinates associated with the average road shape information in the road shape information storage.
A non-transitory storage medium storing a road shape information generation program that causes a controller of a road shape information generator to:
- obtain a sensor value acting on a vehicle when the vehicle travels on a road section;
- generate information about a road shape of the road section as current road shape information based on the obtained sensor value;
- determine whether the road shape information storage already contains previous road shape information for the road section;
- in response determining that the road shape information storage already contains the previous road shape information for the road section, (i) generate average road shape information by averaging the current road shape information with the previous road shape information, (ii) store the average road shape information in the road shape information storage, (iii) determine current coordinates representing a current location of the vehicle when the current road shape information is generated, (iv) determine a difference between the current coordinates representing the current location of the vehicle and previous coordinates representing a previous location of the vehicle when the previous road shape information was generated, (v) compare the difference with a predetermined value, (vi) in response to the difference being greater than the predetermined value, store the current coordinates as latest coordinates associated with the average road shape information in the road shape information storage.
Dependencies are inferred from the claim text.