Xanavi Informatics Corporation

Clarion Co

Hitachi Automotive Systems, Ltd.

Faurecia Clarion Electronics Co., Ltd.

Shinichi Amaya

Yoshinori Endo

Mariko Okude

Akio Sumizawa

Tomoaki Hiruta

Takaaki Shiina

Masatoshi Kumagai

Kenichiro Yamane

Takumi Fushiki

Takaaki Sekiguchi

Ryohei Kato

Manabu Kato

Jun Li

Mitsunori Maru

Kentaro Daikoku

Taketo Tsuburaya

Kenji Suzuki

Noriyuki Abe

Takeshi Shima

Arata Hayashi

Yuji Oohara

Hirofumi Komine

Isamu Oda

Katsuhiko Kageyama

Hiroaki Senoo

Michihito Mizuno

Yuuki Takaoka

Takefumi Kudo

A calculation apparatus includes a control unit configured to calculate a necessary distance that is necessary for a vehicle to perform lane change from a first travel lane to a second travel lane by combining a first distance that the vehicle travels while the vehicle waits to start the lane change, a second distance that the vehicle travels while a speed of the vehicle is adjusted, and a third distance that the vehicle travels while executing the lane change.

Calculation apparatus and arithmetic method

A navigation system includes an operation input unit, a temporary storage unit, and a control unit that executes processing concerning the navigation operation using the information for applications. The control unit sets analysis priority levels for analysis processing performed for each of the kinds of the map information and sets generation priority levels for each of the kinds of the information for applications, performs, with at least one kind of map information as an analysis target, the analysis processing generates the information for applications in order according to the generation priority levels based on results of the analysis processing respectively obtained for the map information set as the analysis target, saves the generated information for applications in the temporary storage unit, and executes processing concerning the navigation operation using the information for applications saved in the temporary storage unit.

Navigation system and navigation method

The present invention performs route guidance that excludes a difficult-to-travel section appropriately and provides an alternative route with favorable route quality. A navigation deviceincludes an arithmetic devicethat, when a route including a difficult-to-travel section is found, identifies the route as a candidate route while adding a predetermined penalty cost to the cost of the route, identifies an alternative route obtained by coupling a first partial route from a constituent node in the difficult-to-travel section of the found route to a destination with a second partial route from the departure point of the found route to a node having already been searched for, identifies the alternative route as a candidate route after adding a coupling cost for reaching from the already-searched node to the certain constituent node in the difficult-to-travel section to costs of the first and second partial routes, selects one of the candidate route with the penalty cost and the candidate route with the coupling cost with the smaller cost as a guidance route.

Navigation device, route search server, and route search method

Travelling corresponding to characteristics of autonomous driving can be performed. An autonomous driving control devicemounted on a vehicle and controlling autonomous driving, includes a storage unitthat stores map data, a route extraction unitthat extracts a plurality of routes from an origin O to a destination D based on the map data, a determination unitthat determines whether or not to change to another route in response to a situation of an intersection when the vehicle approaches the intersection while the vehicle is traveling in one route of the routes extracted by the route extraction unit, and an autonomous driving control unitthat controls autonomous driving based on the determination of the determination unit

Autonomous driving control device

A device for calculating one or more camera parameters of a camera mounted on a traveling vehicle includes a location information acquisition unit, a road width information acquisition unit, a scenery image acquisition unit, and a camera parameter calibration unit. The device calculates a height of a mount position of the camera and a direction of the camera. The device also converts a scenery image captured by the camera of a scenery including the road on which the traveling vehicle moves into an image that is displayed for navigation.

Camera parameter calculation device, navigation system and camera parameter calculation method

An information processing cooperation system, comprising: a first information processing terminal mounted on a vehicle; a second information processing terminal having a plurality of types of applications, wherein the first information processing terminal comprises: a condition determination unit configured to determine current conditions of at least one of the vehicle and a user riding on the vehicle; and an activation control unit configured to transmit, depending on the current conditions determined by the condition determination unit, an activation request for activating at least one of the plurality of types of applications to the second information processing terminal, wherein the second information processing terminal comprises: an application activation unit configured to activate an application corresponding to the activation request received from the activation control unit; and an application execution unit configured to execute the activated application in cooperation with the first information processing terminal.

Information processing cooperation system, information processing terminal and computer readable medium for the same

A route calculation system includes: a route selection probability calculation unit that calculates a route selection probability of each route; a weighting parameter acquisition unit that acquires at least two kinds of weighting parameters representing degrees of influences of at least a route traveling distance and a route traveling time on the route selection probability; a weighting parameter selection unit that selects at least two kinds of weighting parameters corresponding to a specified set of a starting point and ending point combination related to a combination of a departure point and a destination; and a recommended route calculation unit that calculates a recommended route based on at least two kinds of link costs including a link traveling distance and a link traveling time and based on the at least two kinds of weighting parameters corresponding to the specified set of the starting point and ending point combination.

Route calculation system, navigation device, and route calculation method

A position coordinate based route transmitted from a server is reconstructed as a route of link numbers or node numbers in map data of navigation apparatus without error. A route guidance server searches a route from a start point to end point designated by a navigation apparatus; selects all or a part of nodes included in the searched route as route nodes; sets complementary points to the respective selected route nodes on the route and at a distance longer than a predetermined distance from the respective route nodes; and transmits information including coordinate information on the route nodes and complementary points as route information to the navigation apparatus. Then, based on the coordinate information on the route nodes and complementary points transmitted from the server, the navigation apparatus identifies the route nodes and road links connecting the route nodes by identification numbers in map data the navigation apparatus it self has.

Route guidance server, navigation apparatus, route guidance system, and route guidance method

Predicted traffic information of a plurality of time bands is downloaded once for a mesh area. Moreover, time band range of the predicted traffic information to be downloaded is increased as distance from current position to the mesh area increases. Furthermore, the time band range is increased for the morning and the evening. Moreover, as difference between the current time and departure time becomes larger, the time band range is increased.

Navigation device traffic information reception method

When receiving a traffic information providing request, a traffic information providing apparatus analyzes which area's traffic information is requested based on the received request information. Traffic information of road links located in the requested area is read from the traffic information, and it is determined whether the road links' traffic information is similar or not. Similar links configure a link group, and traffic information corresponding to the link group is created. Traffic information of the configured link group is delivered to an in-vehicle information apparatus.

Traffic information providing system, apparatus, method, and in-vehicle information apparatus

There is provided a method and a device for accurately estimating traffic information of a link having no traffic information even if different types of roads are mixed. The device finds a parameter characterizing a damping curve of a quantity of change of relative speed based on stored traffic information for links on a city center side on a minimum-time cost route connecting the city center and suburbs, finds a quantity of change of relative speed of the link having no observed traffic information and estimates its traffic information based on the damping curve. The device also calculates a ratio of quantities of change of relative speed of two links whose road types change as a speed change similarity ratio and estimates traffic information of the link of a second road type from known traffic information of the link of a first road type by using that ratio.

Method of estimation of traffic information, device of estimation of traffic information and car navigation device

An information center () for collecting traffic information stores in its memory device the latest map data. Then, it is determined through a terminal device () whether or not history information has been recorded in a data recording medium () mounted in a navigation device (), and when it is determined that the history information has been recorded, the map data in the data recording medium are updated to the latest map data. The data recording medium () is removable from the navigation device (). Statistical traffic information may be updated along with the updating of the map data. Further, when history information is directly uploaded to the information center, an identifier is attached to the uploaded information.

Traffic information collecting system for navigation device

A navigation device that calculates an expected travel time or an expected arrival time for each retrieved route, using link costs predetermined for calculation of expected travel times regardless of search conditions. As the link costs for the calculation of expected travel times, are used link travel times obtained by statistically processing traffic information collected in the past, for example.

Route search method for navigation device

Route search is performed considering the fact that traffic conditions differ according to lane even for the same road. A navigation device performs route search, using link costs (link travel times) classified by lane. For example, the navigation device searches for a route having the lowest total cost to the destination, using link data that determine cost for each lane of a component link of a road on a map. A cost of a lane on which a vehicle runs to move to a next link, being the cost of any lane of the link, is used as a cost of a link on a route.

Growing community of inventors

Higashiyamato, Japan

Shinichi Amaya