Abstract: There is provided a technique for acquiring information on an obstacle regardless of whether an operation of avoiding the obstacle has been performed. An obstacle information acquisition system includes an image obtaining part that obtains a shot image of a road on which a vehicle is traveling; an image recognizing part that detects an obstacle on a road and a lane from the image; and an obstacle information acquiring part that acquires obstacle information in which a location of the obstacle is associated with the image, based on a passable width of a lane where the obstacle is located in the image.

Abstract: Provided is a driving assistance device allowing, when a vehicle is parked in a parking lot, provision of driving assistance based on an appropriate travel path. The device is configured such that when a vehicle is parked in a parking lot, an intra-parking-lot network representing a route that can be selected by the vehicle in the parking lot is obtained. Using this network, a candidate entry path for a vehicle's travel path from an entrance to the parking lot to a parking location is generated and obtained using the intra-parking-lot network based on a first condition. If determined that the condition for suitability is not satisfied, the candidate entry path determined not to satisfy the condition for suitability is modified based on a second condition different from the first condition and driving assistance is provided based on the modified candidate entry path.

Abstract: There are provided a driving assistance device and a computer program that provide appropriate driving assistance that does not place a burden on a passenger of a vehicle when an obstacle which becomes a factor that hinders travel of the vehicle is present on a planned travel route of the vehicle. Specifically, when an obstacle which becomes a factor that hinders travel of a vehicle is present on a planned travel route of the vehicle, a cost indicating a burden on a passenger is calculated for a plurality of candidates for avoidance operation for avoiding the obstacle, avoidance operation recommended to avoid the obstacle is selected from among the plurality of candidates for avoidance operation by comparing the calculated costs, a travel path recommended for the vehicle to travel along is generated in accordance with the selected avoidance operation, and driving assistance for the vehicle is provided based on the generated travel path.

Abstract: Provided is a driving assistance device and a computer program to generate a travel path suppressing a steep turn or sudden deceleration upon traveling on a curved section or consecutive curves, as a travel path recommended for vehicle travel. Specifically, a planned travel route along which a vehicle travels is obtained; particularly, when the obtained planned travel route includes a plurality of consecutive curves, a coupling point for the plurality of curves is set, using map information including information about markings and targeting a curved section including the plurality of curves; a first-half travel path that reaches the coupling point from a start vector and a second-half travel path that reaches an end vector from the coupling point are combined together, targeting the curved section, to generate a recommended travel path for a vehicle; and driving assistance for the vehicle is provided based on the generated travel path.

Abstract: There is provided a driving assistance device that can provide appropriate driving assistance when a vehicle travels at a merge point where a merge into a main lane from an acceleration lane is performed.

Abstract: There is provided a driving assistance device in which when driving assistance for a vehicle is provided, a travel path of the vehicle that takes into account traffic congestion conditions for each lane can be generated and driving assistance based on the travel path can be appropriately provided. Specifically, a planned travel route on which the vehicle travels is obtained, traffic congestion conditions for each lane on the planned travel route are obtained, a travel path recommended for the vehicle to travel along on a road included in the planned travel route is generated using map information including at least information about markings and the traffic congestion conditions for each lane, and driving assistance for the vehicle is provided based on the generated travel path.

Abstract: Provided is a drive assistance device preventing an unrecommended lane when a vehicle travels, enabling appropriate provision of driving assistance. Specifically, candidates for a way of moving into a selectable lane when the vehicle moves along a planned travel route are identified and obtained by using map information. Then, for a candidate that involves a lane change among the obtained candidates for a way of moving into a lane, a lane change start location at which a lane change starts and a lane change end location at which the lane change ends are set at a location close to a destination on a priority basis, and manner of moving into a lane for the vehicle that is recommended when the vehicle moves is selected from among the candidates for a way of moving into a lane, taking into account the set lane change start location and lane change end location.

Abstract: Provided is a driving assistance device allowing, when a vehicle is parked in a parking lot, provision of driving assistance based on an appropriate travel path. The device is configured such that when a vehicle is parked in a parking lot, an intra-parking-lot network representing a route that can be selected by the vehicle in the parking lot is obtained. Using this network, a candidate entry path for a vehicle's travel path from an entrance to the parking lot to a parking location is generated and obtained using the intra-parking-lot network based on a first condition. If determined that the condition for suitability is not satisfied, the candidate entry path determined not to satisfy the condition for suitability is modified based on a second condition different from the first condition and driving assistance is provided based on the modified candidate entry path.

Abstract: Provided is a driving assistance device deriving of a travel path from an entrance to the parking lot up to the point where the vehicle is parked in a parking space, the travel path identifying specific travel locations in the parking lot. When a vehicle is parked in a parking lot, the device obtains layout information of parking spaces provided in the parking lot, a parking location where the vehicle is parked is obtained from among the parking spaces, and generates an intra-parking-lot network representing a route selectable by the vehicle in the parking lot and a travel path from an entrance to the parking lot up to the point where the vehicle is parked with the layout information of parking spaces. A the travel path identifying vehicle's travel locations in the parking lot, and driving assistance based on the generated travel path is provided.

Abstract: There are provided a driving assistance device and a computer program that provide appropriate driving assistance that does not place a burden on a passenger of a vehicle when an obstacle which becomes a factor that hinders travel of the vehicle is present on a planned travel route of the vehicle. Specifically, when an obstacle which becomes a factor that hinders travel of a vehicle is present on a planned travel route of the vehicle, a cost indicating a burden on a passenger is calculated for a plurality of candidates for avoidance operation for avoiding the obstacle, avoidance operation recommended to avoid the obstacle is selected from among the plurality of candidates for avoidance operation by comparing the calculated costs, a travel path recommended for the vehicle to travel along is generated in accordance with the selected avoidance operation, and driving assistance for the vehicle is provided based on the generated travel path.

Abstract: There is provided a driving assistance device that can provide appropriate driving assistance when a vehicle travels at a merge point where a merge into a main lane from an acceleration lane is performed.

Abstract: There is provided a driving assistance device in which when driving assistance for a vehicle is provided, a travel path of the vehicle that takes into account traffic congestion conditions for each lane can be generated and driving assistance based on the travel path can be appropriately provided. Specifically, a planned travel route on which the vehicle travels is obtained, traffic congestion conditions for each lane on the planned travel route are obtained, a travel path recommended for the vehicle to travel along on a road included in the planned travel route is generated using map information including at least information about markings and the traffic congestion conditions for each lane, and driving assistance for the vehicle is provided based on the generated travel path.

Abstract: There are provided a route search device and a computer program that can search for a recommended route for a user to move to a destination from a parking location after the user parks a vehicle in a parking lot. Specifically, a parking lot network is obtained which is a network representing a route that can be selected in a parking lot by the user with moving means used after getting out of the vehicle; an in-building network is obtained which is a network representing a route that can be selected in a building by the user with the moving means used after getting out of the vehicle; and a recommended route from a parking location where the vehicle is parked in the parking lot to a destination present in the building is searched using a network obtained by connecting the parking lot network to the in-building network.

Abstract: Provided is a driving assistance device/program enabling selection of an appropriate parking space for parking a vehicle. A lane network which is a network representing movement into lanes that can be selected by a vehicle, a parking network which is a network representing a course that can be selected by the vehicle in a parking lot, an after-getting-out-of-vehicle network which is a network representing a course that can be selected by a user with moving means used after getting out of the vehicle are obtained, a moving cost required for movement to a destination, including movement by the vehicle to a parking space in the parking lot and movement from the parking space to the destination by the moving means used after getting out of the vehicle, is calculated using the networks, and a parking space in which the vehicle is parked is selected using the calculated moving cost.

Abstract: There is provided a technique for acquiring information on an obstacle regardless of whether an operation of avoiding the obstacle has been performed. An obstacle information acquisition system includes an image obtaining part that obtains a shot image of a road on which a vehicle is traveling; an image recognizing part that detects an obstacle on a road and a lane from the image; and an obstacle information acquiring part that acquires obstacle information in which a location of the obstacle is associated with the image, based on a passable width of a lane where the obstacle is located in the image.

Abstract: There are provided a driving assistance device and a computer program that can identify a recommended travel path to a parking lot that is where to park a vehicle and can appropriately provide driving assistance. Specifically, it is configured to obtain a parking lot in which a vehicle is parked at a destination, generate a travel path recommended for the vehicle to travel along from a travel start point to an entrance to the parking lot, using at least highly accurate map information 16 including information about lanes, facility information 17 including information about the entrance to the parking lot, and connection information 18 indicating a connection relationship between lanes included in an entry road and the entrance to the parking lot, and provide driving assistance for the vehicle based on the generated travel path.

Abstract: Provided is a drive assistance device preventing an unrecommended lane when a vehicle travels, enabling appropriate provision of driving assistance. Specifically, candidates for a way of moving into a selectable lane when the vehicle moves along a planned travel route are identified and obtained by using map information. Then, for a candidate that involves a lane change among the obtained candidates for a way of moving into a lane, a lane change start location at which a lane change starts and a lane change end location at which the lane change ends are set at a location close to a destination on a priority basis, and manner of moving into a lane for the vehicle that is recommended when the vehicle moves is selected from among the candidates for a way of moving into a lane, taking into account the set lane change start location and lane change end location.

Abstract: Provided is a drive assistance device and a computer program that can generate, based on information about section lines on roads, a travel path for a vehicle that takes into account restrictions, etc., on the roads, and can appropriately provide drive assistance. Specifically, it is configured to obtain a planned travel route along which a vehicle travels, generate, using high-precision map information including at least information about section lines, a static travel path which is a travel path along which the vehicle is recommended to travel on a road included in the planned travel route, and provide drive assistance for the vehicle based on the static travel path.

Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.