Abstract: A relative position determining apparatus according to the present invention includes: a first trajectory information obtaining unit obtaining first trajectory information that is a set of first trajectory points indicating positions that a first moving object has passed; a second trajectory information obtaining unit obtaining second trajectory information that is a set of second trajectory points indicating positions that a second moving object has passed; a map information obtaining unit obtaining map information including lane shape information indicating a shape of each lane; a matching determining unit determining whether each of the first trajectory information and the second trajectory information matches the lane shape information; and a relative lane determining unit determining relative lanes of the first moving object and the second moving object, based on a result of the determination by the matching determining unit.

Abstract: A server selection device is provided in a server which performs communications with a motor vehicle, and a server determination unit is provided in the server selection device that selects a server from the information of surroundings, and promotes a motor vehicle to connect to the server. The server determination unit selects, from among a plurality of such servers capable of connecting the motor vehicle, one server by which its connection time can be longer in its connection than that by another server, based on a running route of the motor vehicle and coverage area information of the server, so that server information on a server to be connected next is transmitted to the motor vehicle.

Abstract: A driving assistance device to properly recognize a relative positional relationship between mobile objects without the use of map information. The driving assistance device includes a relative position judgment section for judging a relative positional relationship of an object of interest and a first neighboring object relative to a second neighboring object, based on object-of-interest information and neighbor information, to make a judgment as a first judgment on a relative positional relationship between the object of interest and the first neighboring object, based on the aforementioned judgment result.

Abstract: A driving assist device includes an input information determination unit configured to determine driving assist information on the basis of first vehicle information including positional information and operational information about a target vehicle, second vehicle information including positional information and operational information about each of nearby vehicles, and a running route for the target vehicle. The input information determination unit selects any of the nearby vehicles that is located at a position at which a video to be used for driving assist can be recorded, and determines the video acquired from the selected nearby vehicle as the driving assist information. Consequently, driving assist flexibly adapted to, for example, the running route for and the operational information about the target vehicle can be performed.

Abstract: The present application is such that, in order to prevent communication disruption caused by a change in the situation of wireless communication due to the distance between a roadway instrument and a self-vehicle, a vehicle wireless communication device includes a communication section; a control section which controls the reception in the communication section; a position detection section which detects the position of a roadway instrument; and a running direction detection section which detects the running direction of a self-vehicle, wherein the communication section, based on the roadway instrument position detected by the position detection section and on the self-vehicle running direction detected by the running direction detection section, receives information from a roadway instrument next closest to a roadway instrument carrying out communication.

Abstract: A vehicle driving assistance system includes a vehicle side communication system and a base point side communication system. The base point side communication system includes: a receiving part which receives the vehicle information and the video image information; a drive route operation part which searches for a drive route of the vehicle; an object discrimination part which recognizes an object existing on the drive route; a collision judgment part which judges about whether there is a risk of collision with the object; an information determination part which selects video image information for transmitting, according to the type of collision; a transmitting part which transmits the video image information to the vehicle, having the vehicle side communication system. The vehicle driving assistance system is configured so that the video image information from a vehicle can be transmitted according to the situation of driving assistance.

Abstract: A relative position determining apparatus according to the present invention includes: a first trajectory information obtaining unit obtaining first trajectory information that is a set of first trajectory points indicating positions that a first moving object has passed; a second trajectory information obtaining unit obtaining second trajectory information that is a set of second trajectory points indicating positions that a second moving object has passed; a map information obtaining unit obtaining map information including lane shape information indicating a shape of each lane; a matching determining unit determining whether each of the first trajectory information and the second trajectory information matches the lane shape information; and a relative lane determining unit determining relative lanes of the first moving object and the second moving object, based on a result of the determination by the matching determining unit.

Abstract: A mobile communication system performs, in a first communication device configured to provide a service in response to a request from a mobile body (30), authentication based on identification information on the mobile body (30), and provides the service to the mobile body (30) based on a result of the authentication. When the mobile body (30) moves, the mobile communication system provides, in a second communication device (20) at the movement destination, the service to the mobile body (30) based on the identification information from the mobile body (30) and the authentication result obtained by the first communication device without performing authentication in the second communication device (20).

Abstract: A reference identification unit identifies a target reference position to be a reference from a position history indicated in target information, based on a movement state of a target object, and identifies a nearby reference position to be a reference from a position history indicated in nearby information, based on a movement state, estimated from the nearby information, of a nearby object which is a mobile object present in the vicinity of the target object. A position estimation unit estimates a relative position between the target object and the nearby object, based on the target reference position and the nearby reference position.

Abstract: A reference identification unit identifies a target reference position to be a reference from a position history indicated in target information, based on a movement state of a target object, and identifies a nearby reference position to be a reference from a position history indicated in nearby information, based on a movement state, estimated from the nearby information, of a nearby object which is a mobile object present in the vicinity of the target object. A position estimation unit estimates a relative position between the target object and the nearby object, based on the target reference position and the nearby reference position.

Abstract: A driving assistance device includes processing circuitry to acquire host vehicle information, receive mobile object information from a mobile object outside the host vehicle using wireless communication, determinate a right or left turn of the host vehicle based on the host vehicle information, obtain a prediction point by calculating a right or left turn point of the host vehicle based on the host vehicle information, determine whether or not the host vehicle collides with the mobile object using the host vehicle information, the mobile object information, and the prediction point, and perform driving assistance of the host vehicle based on a result of the collision determination. The processing circuitry obtains the prediction point by calculating, on a basis of a preset deceleration, a distance required for the speed of the host vehicle HV included in the host vehicle information to reach a target speed set in advance.

Abstract: A driving assistance device to properly recognize a relative positional relationship between mobile objects without the use of map information. The driving assistance device includes a relative position judgment section for judging a relative positional relationship of an object of interest and a first neighboring object relative to a second neighboring object, based on object-of-interest information and neighbor information, to make a judgment as a first judgment on a relative positional relationship between the object of interest and the first neighboring object, based on the aforementioned judgment result.

Abstract: In automatic driving or the like, it is necessary to prevent an attacker from performing message transmission by impersonating a vehicle. If it is determined that a history of acquired behavioral information of own vehicle does not match vehicle behavior, a message indicating that communication between the own vehicle and a surrounding vehicle is stopped is transmitted to the surrounding vehicle.

Abstract: A communication device for providing a service in response to a request from a mobile object includes: a reception unit for receiving identification information from the mobile object; an authentication unit for performing authentication of the identification information; a service provision unit for providing the service to a mobile object having legitimately registered identification information on the basis of a result of authentication performed by the authentication unit; a mobile object detection unit for detecting movement of the mobile object; a communication device detection unit for detecting another communication device in the vicinity of the mobile object on the basis of a result of detection performed by the mobile object detection unit; and an instruction unit for causing the other communication device detected by the communication device detection unit to provide a service equivalent to the service to the mobile object without performing authentication for the mobile object.

Abstract: Using communication unit positional information acquired using infrastructure communication and moving body positional information detected using millimeter-wave radar, a moving body existing in a blind spot of a radar detection region is recognized, and behavior is predicted from movement information of the moving body, by deleting the moving body information detected by millimeter-wave radar from the communication unit information acquired using infrastructure communication.

Abstract: The present application is such that, in order to prevent communication disruption caused by a change in the situation. of wireless communication due to the distance between a roadway instrument and a self-vehicle, a vehicle wireless communication device includes a communication section; a control section which controls the reception in the communication. section; a position detection. section which detects the position of a roadway instrument; and a running direction detection section which detects the running direction of a self-vehicle, wherein the communication section, based on the roadway instrument position detected. by the position detection section and on the self-vehicle running direction detected by the running direction detection section, receives information from a roadway instrument next closest to a roadway instrument carrying out communication.

Abstract: A communication device for providing a service in response to a request from a mobile object includes: a reception unit for receiving identification information from the mobile object; an authentication unit for performing authentication of the identification information; a service provision unit for providing the service to a mobile object having legitimately registered identification information on the basis of a result of authentication performed by the authentication unit; a mobile object detection unit for detecting movement of the mobile object; a communication device detection unit for detecting another communication device in the vicinity of the mobile object on the basis of a result of detection performed by the mobile object detection unit; and an instruction unit for causing the other communication device detected by the communication device detection unit to provide a service equivalent to the service to the mobile object without performing authentication for the mobile object.

Abstract: In order to report, immediately and over a broad range, that a reversely travelling moving object is approaching, a reverse travelling preventing device according to the present invention includes: a reverse travelling detection unit which detects reverse travelling information about travelling of the own vehicle; an inter-vehicle communication signal transmission unit which transmits reverse travelling information to another moving object on the basis of output from the reverse travelling detection unit; an inter-vehicle communication signal reception unit which receives transmitted reverse travelling information; an inter-vehicle communication signal transfer unit which transfers the reverse travelling information to another moving object; and a control signal output unit which, on the basis of the transmitted or received reverse travelling information, displays the reverse travelling information and controls operation of the moving object.

Abstract: Using communication unit positional information acquired using infrastructure communication and moving body positional information detected using millimeter-wave radar, a moving body existing in a blind spot of a radar detection region is recognized, and behavior is predicted from movement information of the moving body, by deleting the moving body information detected by millimeter-wave radar from the communication unit information acquired using infrastructure communication.

Abstract: Using communication unit positional information acquired using infrastructure communication and moving body positional information detected using millimeter-wave radar, a moving body existing in a blind spot of a radar detection region is recognized, and behavior is predicted from movement information of the moving body, by deleting the moving body information detected by millimeter-wave radar from the communication unit information acquired using infrastructure communication.