Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Tomoya Ikeuchi

Masaharu Umezu

Makoto Mikuriya

Mitsuo Shimotani

Yasushi Kodaka

Tomohiro Nakae

Atsushi Kohno

Yukio Goto

Tadatomi Ishigami

Minoru Yoshida

Yuki Sato

Masayuki Ishida

Yoshitsugu Sawa

Masao Higuchi

Yoshihiko Utsui

Masatoshi Fujii

Hiroyuki Kumazawa

Kohei Fujimoto

Masakazu Suzuki

Kiyoshi Matsutani

Akio Uekawa

Takeo Sakairi

Hidehiko Ohki

Fumitaka Satou

Norihiro Nishiuma

Yuta Kawana

Masashi Kido

Kazuma Kaneko

Seigo Kanazawa

Norizumi Motooka

Shinya Ueda

Shoichiro Takenaka

Yoshihisa Nakao

Akihiro Obara

Hiroshi Sakaida

Kosei Uchino

Hisanobu Masuda

Satoshi Maegawa

The object is to provide a technology for appropriately making the centimeter positioning available in automotive applications. A positioning apparatus determines a standalone positioning solution including a vehicle position, determines a float solution including the vehicle position and a carrier phase bias, determines an integer ambiguity, determines a fix solution including the vehicle position, sets any one of the standalone positioning solution, the float solution, the fix solution, and a non-positioning solution indicating no existence of a solution as a positioning solution, and predicts a positioning error of the positioning solution as a positioning error of the vehicle position per epoch.

Positioning apparatus and positioning method

It is an object of the present invention to provide a technique by which a desired search can be performed even without any polygon data. An administrative district area is defined by collecting mesh areas in each of which a POI is located, for each administrative district, among mesh areas obtained by sectioning an area on a map, and an extended administrative district area is defined by extending the administrative district area. Then, the data storage stores therein data in which a name of an administrative district is associated with a POI within the extended administrative district area related to the administrative district, as search data.

Storage medium, map information processing apparatus, and data generation method

Map data is managed by being divided into a geometric information data list of pieces of geometric information or a phase information data list of pieces of phase information, an attribute information data list of pieces of attribute information, and a relation information data list of pieces of relation information each indicating a relation between the geometric information or the phase information and the attribute information. The pieces of attribute information in the attribute information data list are arranged in the order corresponding to the pieces of geometric information or phase information which are feature information, and the pieces of relation information are arranged in the order corresponding to the pieces of geometric information or phase information which are feature information.

Navigation device and navigation method

A map information processing apparatus includes a map information storage unitfor storing map information which is separated into multiple layers, a layer-to-be-updated-with-addition determination processing unitfor determining one or more layers which are to be updated with addition of an unregistered road which has been detected during travel of a vehicle, and an unregistered road adding and updating unitfor adding the unregistered road to the map information storage unit to update the map information with the addition being aimed at the one or more layers determined by the layer-to-be-updated-with-addition determination processing unit.

Map information processing apparatus

An apparatus includes a map information storage section () that stores map information on an area by area basis formed in meshes; a positioning section () for measuring its own present location; a new road detecting section () for deciding that a new road is detected when the present location is determined to be on a road not included in the map information; a new road registration decision section () for deciding that the new road is registerable to the map information stored in the map information storage section when the road density in the area including the new road is equal to or less than a predetermined value; and a new road registration section () for registering the new road to the map information stored in the map information storage section, when the new road is determined to be registerable.

An apparatus includes a map information storage section for storing map information on an area by area basis formed in meshes; a positioning section for measuring its own present location; a new road detecting section; a new road registration decision section for deciding that the new road is additionally registerable to the map information stored in the map information storage section when the road density in the area including the new road detected by the new road detecting section is equal to or less than a predetermined value; and a new road registration section for making additional registration of the new road, as to which the new road registration decision section makes an additionally registerable decision, to the map information stored in the map information storage section.

A map information processor includes a map information storage unitfor storing map display information including a set of pieces of mesh-by-mesh map information managed on a mesh-by-mesh basis and including road information, background information, and in-mesh image information, an image processing unitfor generating a map image on a basis of image data included in the road information, the background information, and the in-mesh image information included in the mesh-by-mesh map information read from the map information storage unit, and a display devicefor displaying the map image generated by the image processing unit.

Map information processor and data structure of map information

A map information processing apparatus includes a map information storage unit () for storing map information, a map update information storage unit () for storing one or more pieces of map update information (to) used for updating yet-to-be-updated map information, a map update information selection unit () for selecting one or more pieces of map update information required to update the map information stored in the map information storage unit () from the one or more pieces of map update information stored in the map update information storage unit, and a map information updating unit () for updating the map information stored in the map information storage unit () by applying the one or more pieces of map update information selected by the map update information selection unit to the map information one by one in order of updating.

Navigation apparatus

A map information processing device includes a map information storage unitfor storing map information, a sensor information input unitfor inputting sensor information used for calculation of a current position, a navigation processing unitfor calculating the current position by using the map information read from the map information storage unit, and the sensor information inputted from the sensor information input unit, and for, when determining that the above-mentioned calculated current position is in a tunnel shown by the read map information, and when this tunnel branches into tunnel sections at a forward position, calculating a distance to each of all tunnel end points to generate a map image about a map including this calculated distance, and an output control unitfor outputting the map image generated by the navigation processing unit.

Map information processing device

A map information processing apparatus is disclosed. The apparatus includes a processor for calculating a vehicle position; a data generation unit for generating traveling locus data on the basis of the calculated vehicle position when the vehicle position deviates from a road; a registration unit for registering the traveling locus data generated by the data generation unit in a temporarily registered road list as a temporarily registered road; an operation unit for selecting one of temporarily registered roads registered in the temporarily registered road list; and an official registration unit for registering the selected temporarily registered road in an officially registered road list as an officially registered road in accordance with an instruction from the operation unit, generating road data on the basis of traveling locus data relating to the temporarily registered road, and adding the generated road data to a map data stored in a map data storage unit.

A map information processing apparatus includes a road matching means () for comparing the road data with current position data to carry out map matching, an input unit () for inputting both a specified detection start point and a specified detection end point, an unregistered road detection means () to which both the specified detection start point and the specified detection end point are inputted, for detecting, as an unregistered road, a section between a detection start point and a detection end point of the unregistered road which are acquired on the basis of either the map matching carried out by the road matching means or the result of comparison between running track data and the road data, and a road data generating means () for generating road data corresponding to the detected unregistered road and storing the road data in a map data storage means.

A map information providing system has a map information providing apparatusand an onboard information terminal. The map information providing apparatusselects a road represented by the coordinate point string data indicating a newly established road in accordance with distribution request information obtained from the onboard information terminal, and distributes the distribution road information containing the coordinate point string data about the road selected to the onboard information terminal. The onboard information terminal obtains the distribution road information containing the coordinate point string data from the map information providing apparatus, and generates, in the same format at least in part as the map information, road data for adding a new road to a road network represented by the map information stored in a map information storing section from the coordinate point string data contained in the distribution road information obtained, and generates new map information from the road data and map information.

Onboard information terminal and map information providing apparatus and map information providing system using them

In a map information processing apparatus including a processorfor updating map information containing map data stored in a map information storage device, road network data contained in the map data stored in the map information storage device has a data structure in which the road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, the road network being represented by the nodes and the links; each of the link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links; each link constituting the link strings is provided with an invariable link identifier proper to each link; and node indication information for designating each node included in the link strings is represented by the link identifier of the link having the node as its one end.

Map information processing apparatus and storage medium of map information

A navigation apparatus includes an unregistered road detecting means for setting up a detection start point and a detection end point for an unregistered road on registered roads which are respectively located before and behind sections in which matching result data indicates a free state, respectively, the matching result data indicating a matching state when the vehicle is traveling each of the registered roads, for performing a coordinate transformation on a traveling path which is created from positioning data and which is extending between the two points so that the traveling path has coordinates which match with the coordinates of a registered road between them, and for detecting the coordinates of the unregistered road from a portion of the coordinate-transformed traveling path which does not overlap any registered road, and a road data generating means for creating road data about the unregistered road from the coordinates of the unregistered road.

Growing community of inventors

Tokyo, Japan

Tomoya Ikeuchi