Abstract:
A map difference data distribution system includes a map difference data distribution device including a map difference data storage unit storing map difference data items and a distribution unit distributing map difference data items, and a map data maintaining device including update unit updating map data based on map difference data items. The map difference data storage unit traces the updated data items and data items having dependent relationships with the updated data items back to the different version updates, and stores the data items as map difference data items. The map difference data distribution device includes a non-updated data extraction unit extracting non-updated data items from the map data maintaining device, a grouping unit grouping the data items in dependent relationships, and a distribution data generation unit generating distribution data by arranging grouped records of non-updated data items from higher priority of map element under specified communication traffic volume.
Abstract:
A vehicle control device includes: a carry-in state determination device that determines whether a portable terminal device to be carried into a vehicle is already carried into the vehicle; a pending process determination device that, when the carry-in state determination device determines that the portable terminal device is already carried into the vehicle, determines whether the portable terminal device has a pending process that is held in an unexecuted state; and a pending process control device that, when the pending process determination device determines that the portable terminal device has the pending process, enables the pending process to be executed by the portable terminal device in the vehicle.
Abstract:
Provided is a center device that enables a navigation device to conduct guidance according to a route on the basis of the latest map information, without imposing a heavy load on a communication network. The center device calculates a guide route as a center route on the basis of the latest of the map information and information received from the navigation device, specifies the map information that is available to the navigation device, and calculates a guide route as a navigation route on the basis of the specified map information and the information received from the navigation device. On the basis of the center route and the navigation route, the center device specifies, from the map information, different map information necessary for the navigation device to give guidance on the center route, and transmits the specified map information to the navigation device.
Abstract:
A navigation apparatus includes hierarchically road map data having third-, second-, and first-layer data respectively representing a high, intermediate, and low road rank. The layer data are contiguously disposed in a storage portion in the order of the road ranks. The first- and second-layer data include area data about individual zones into which a region corresponding to the third-layer data is divided. According to a read request designating a bunch of area data, a cached portion of the designated bunch of area data is obtained from a cache area. The remaining portion is obtained from the storage portion such that an address range of the storage portion from the start point to the end point of the remaining portion is collectively read while area data not designated by the read request but positioned between the remaining portion are additionally read.
Abstract:
A road information update system comprising a navigation apparatus and an information center is disclosed. The navigation apparatus collects a travel trace when traveling a new road not present in a road map data, and sends the collected travel trace to the information center. The information center compares multiple road map data to extract a new road and an abandoned road, and generates multiple road change models based on the abandoned road and the new road. The information center receives the travel trace in the new road from the navigation apparatus, and estimates the new road and the abandoned road based on the received travel trace in the new road and the road change models.
Abstract:
A driving assistance device includes: a risk degree obtaining portion obtaining a degree of a risk of an event threatening a safety of a driver when an occurrence of the event is predicted; a risk handling control portion controlling an execution of a risk handling measure by a risk handling unit against the event that is predicted; a risk factor obtaining portion obtaining a factor which causes the risk as a risk factor; and a presentation control portion controlling a presentation of information about the risk factor. The presentation control portion presents information indicating a presence of the risk factor when the risk handling control portion controls the risk handling unit not to execute the risk handling measure and the degree of the risk is equal to or higher than a predetermined value.
Abstract:
An information provision system includes: a vehicular mobile terminal; and a server that accesses a registration database and provides a content to the vehicular mobile terminal. The registration database registers a position-interrelated content provision web page that: specifies the content to be provided according to an input condition; and defines a position-interrelated content to be provided when the vehicular mobile terminal satisfies a trigger condition. The system further includes: a position-interrelated content search device that searches for the position-interrelated content corresponding to a same trigger condition as a moving state of the vehicular mobile terminal when the vehicular mobile terminal accesses the position-interrelated content provision web page and the position-interrelated content provision web page defines the position-interrelated content for the vehicular mobile terminal; and an information provision device that provides a user of the vehicular mobile terminal with a searched position-interrelated content when the trigger condition is satisfied.
Abstract:
An information display system displaying different information on each of a plurality of display units includes: a sight line specifying portion that specifies a line of sight of a driver; a cognition display unit specifying portion that specifies, as a cognition display unit, one of the display units being in a direction of the line of sight; a non-cognition display unit specifying portion that specifies, as a non-cognition display unit, a different one of the display units; a priority order assignment portion that assigns a priority order to the non-cognition display unit or displayed information; and a guide process execution portion that executes a guide process in which the line of sight is guided to the non-cognition display unit or the display unit.
Abstract:
A driving assistance apparatus includes an arrangement memory that stores a past captured image around a target parking region, a captured image acquisition section that acquires a present captured image around the target parking region at parking or departing with respect to the target parking region, and an obstacle specification section that specifies a non-stationary obstacle around the target parking region, based on a difference between the past captured image stored in the arrangement memory, and the present captured image acquired by the arrangement acquisition section. A report section performs a report indicating presence of a non-stationary object when approaching closely the non-stationary object.
Abstract:
A driving assistance apparatus mounted to a first vehicle is provided as follows. A situation determination section determines whether a situation requires compromise between the first vehicle and a nearby vehicle. A target vehicle specification section specifies a second vehicle as a target vehicle that requires compromise with the first vehicle. A scheduled action specification section specifies a scheduled action content of the first vehicle when the situation requiring compromise is determined by the situation determination section. A transmission processing section transmits the scheduled action content specified by the scheduled action specification section to the second vehicle. A reception processing section receives acceptance and refusal information indicating acceptance or refusal of the scheduled action content from the second vehicle. A notification processing section issues a notification indicating whether the driver of the second vehicle accepts the scheduled action content, based on the received acceptance and refusal information.