Abstract: Disclosed is a vehicle state monitoring system in which, when a vehicle (2) has been in a driving stopped state for a reference duration or more, a message is sent to a contact address associated with a vehicular identifier of the vehicle (2). The timing for sending the message may be determined on the basis of an SOC level of a battery (23) identified from vehicle information or estimated on the basis of a length of a last driving duration identified from the vehicle information.

Abstract: Provided is a system or the like which is able to achieve suitable improvement of usability of information provided to the driver of each vehicle in view of the environment in which the vehicle is travelling. The system or the like enables to make the driver of each vehicle aware of reference driving information according to a driving index value of a reference vehicle which is extracted based on a standard value from a plurality of vehicles. It is thus possible to make the driver aware of a correlation between the standard value and the reference driving index value, and use it as reference when driving the vehicle himself/herself. The standard value is set fluidly according to the actual fuel consumption or electric power consumption of each vehicle.

Abstract: Provided is a navigation system and the like capable of improving the utility value of the navigation route in response to a current request in consideration of a user position. In the navigation system of the present invention, when a current request Req(i)(i>1) including a current destination position p2(i) that is the same as a previous destination position p2(i?1), is made from a navigation device 200, a current support route R(i) is searched which has a location point p1(i) that is on a previous support route R(i?1) and distant from the user position p0(i) by a designated distance or more included in the request Req(i), as a starting point.

Abstract: A navigation device for setting an appropriate navigation route based on a support route while reducing an amount of communicating information, is provided. The navigation server recognizes a departure position and a destination position of a user, and sets a support route connecting the departure position and the destination position, based on communication with the navigation device. The navigation device recognizes multiple links constituting a part of the support route, based on communication with the navigation server. The navigation device sets a navigation route including the links connecting the departure position and the destination position. The navigation device determines whether a deviation between a distance of an adjacent link pairs among the links along the support route and a distance thereof along the navigation route is equal to or less than a threshold value. The navigation route is output via an output device if the determination result is positive.

Abstract: A navigation apparatus associates a tentative searching condition for searching for a tentative route with each of a plurality of server searching conditions which are used by a route distribution server to search for a server route from a departure point to a destination. The navigation apparatus includes a tentative route searcher which searches for the tentative route under the tentative searching condition that is associated with one of the server searching conditions which is sent to the route distribution server.

Abstract: According to a navigation server (1) of the present invention, in a mileage matrix containing elements which denote a mileage and are defined by respective mileage factors, a first element of the elements in the mileage matrix which is defined by recognized mileage factors is determined on the basis of the mileage of the recognized mileage of a first vehicle. A second element of the elements in the mileage matrix which is defined by unrecognized mileage factors is determined on the basis of the first element. According thereto, even when the mileage factors of a second vehicle are used to define the second element but not the first element, the previous mileage of the second vehicle can be evaluated with high accuracy in consideration of a relationship between the mileage and the mileage factors of the first vehicle estimated according to the known relationship therebetween.

Abstract: Disclosed is a vehicle state monitoring system in which, when a vehicle (2) has been in a driving stopped state for a reference duration or more, a message is sent to a contact address associated with a vehicular identifier of the vehicle (2). The timing for sending the message may be determined on the basis of an SOC level of a battery (23) identified from vehicle information or estimated on the basis of a length of a last driving duration identified from the vehicle information.

Abstract: Disclosed is a navigation system which creates “environment contribution information” in accordance with a deviation (?(k)) between the total cost (C1(k)) of a first route (RT1(k)) which is searched by using a traffic information indicating the amount of cost required to pass through each link and the total cost (C2(k)) of a second route (RT2(k)) which is searched without using the traffic information. The traffic information used in searching the first route (RT1(k)) to a target position (TP(k)) of a vehicle (2) is used in searching a route to a shared target position by a navigation device (200).

Abstract: According to a navigation server (1) of the present invention, in a mileage matrix containing elements which denote a mileage and are defined by respective mileage factors, a first element of the elements in the mileage matrix which is defined by recognized mileage factors is determined on the basis of the mileage of the recognized mileage of a first vehicle. A second element of the elements in the mileage matrix which is defined by unrecognized mileage factors is determined on the basis of the first element. According thereto, even when the mileage factors of a second vehicle are used to define the second element but not the first element, the previous mileage of the second vehicle can be evaluated with high accuracy in consideration of a relationship between the mileage and the mileage factors of the first vehicle estimated according to the known relationship therebetween.

Abstract: Provided are a server, a system and a method by which a utility value of information relating to fuel efficiency of a vehicle can be improved. A fuel efficiency information management server (100) functions so that a driver of a vehicle or a third party is informed of not only a fuel efficiency of the same vehicle or a vehicle driven by the same driver but also a temporal variation of an eco-index, through a system of eco-information. The eco-index is a conversion result of a travel state factor serving as a variation factor of the fuel efficiency at the time when the fuel efficiency is achieved.

Abstract: Provided are a server, a system and a method by which a utility value of information relating to fuel efficiency of a vehicle can be improved. A fuel efficiency information management server (100) functions so that a driver of each vehicle or a third party is informed of a ranking corresponding to the fuel efficiency level of each vehicle, together with a travel state factor of each vehicle when the fuel efficiency is achieved, through a system of eco-information.

Abstract: According to a navigation server (1) of the present invention, in a mileage matrix containing elements which denote a mileage and are defined by respective mileage factors, a first element of the elements in the mileage matrix which is defined by recognized mileage factors is determined on the basis of the mileage of the recognized mileage of a first vehicle. A second element of the elements in the mileage matrix which is defined by unrecognized mileage factors is determined on the basis of the first element. According thereto, even when the mileage factors of a second vehicle are used to define the second element but not the first element, the previous mileage of the second vehicle can be evaluated with high accuracy in consideration of a relationship between the mileage and the mileage factors of the first vehicle estimated according to the known relationship therebetween.

Abstract: A navigation device and the like capable of appropriately alleviating an amount of communicating information between the navigation server and a navigation device, from the viewpoint of guiding a user to a destination point via the navigation device, on the basis of a support route which is set by the navigation server. Of the links constituting a support route R which connects the current position p1 and the destination position p2 of the user, the links satisfying an extraction condition set according to a changing pattern of a road type are extracted as target links. Also, the target links, that is, the link having high necessity from the viewpoint of guiding the user, with regard to the changing pattern of the road type, is recognized by the navigation device 200 on the basis of communication between the navigation server 100 and the navigation device 200.

Abstract: Provided is a navigation system which can contribute to guidance of a moving device such as a vehicle to a destination along a route appropriate from a viewpoint of energy economy. According to second information (VIN, Lj, OPj) on a second probe car Q2, an eco-index ECOj is evaluated for each combination of a link identifier Lj and a vehicle identifier VIN according a first function f1. According to the evaluation result, a second function f2 is set. According to support request information (VIN) on a support subject car Q, an eco-index ECOk is evaluated for an individual link identifier Lk according to the second function f2. The evaluation result or the road traffic information decided according to the evaluation result is recognized by a navigation apparatus (200) mounted on the support subject car Q.

Abstract: A navigation server is equipped with a support route searching element which searches for a support route from a departure position to a destination position, on the basis of a journey plan and a support map information of a support map information database, a support information retrieving element which retrieves discount information satisfying discount conditions of a toll of toll roads, on the basis of the departure time of the mobile body and the support route, and a support data creating element which transmits discount notice data which is capable of making the car navigation system output the discount information while omitting information arithmetic processing using navigation map information to the car navigation system.

Abstract: According to a navigation server (1) of the present invention, in a mileage matrix containing elements which denote a mileage and are defined by respective mileage factors, a first element of the elements in the mileage matrix which is defined by recognized mileage factors is determined on the basis of the mileage of the recognized mileage of a first vehicle. A second element of the elements in the mileage matrix which is defined by unrecognized mileage factors is determined on the basis of the first element. According thereto, even when the mileage factors of a second vehicle are used to define the second element but not the first element, the previous mileage of the second vehicle can be evaluated with high accuracy in consideration of a relationship between the mileage and the mileage factors of the first vehicle estimated according to the known relationship therebetween.

Abstract: A navigation device and the like capable of harmonizing a navigation route for guiding a mobile body set on the basis of a support route search result by a navigation server and a navigation route for also guiding the mobile body set independently of the navigation route, from a view point of guiding the mobile body smoothly. In the case where the second navigation route r2 is set in the condition where the first navigation route r1 is set, the second navigation route r2 is set and output so as to include a part dr1 of the first navigation route r1 which takes a position departing from the current position pt of the automobile 2 by a first distance d1.

Abstract: A navigation server and the like capable of making a navigation device 200 output a route having adequacy in view of various circumstances is provided. A navigation server 100 recognizes a navigation route r(k) for guiding the automobile 2 to the destination position p2 which is set according to the first algorithm by the navigation device 200. Further, a support route R(k) for guiding the automobile 2 from a current position (or a departure position) p1 to the destination position p2 which is set according to the first algorithm is recognized. Still further, a first index c1(k) representing an adequacy of the navigation route r(k) in view of the second algorithm is evaluated. On condition that the first index c1(k) satisfies a predetermined condition, the support route R(k) is output in place of the navigation route r(k) by the navigation device 200.

Abstract: A navigation apparatus associates a tentative searching condition for searching for a tentative route with each of a plurality of server searching conditions which are used by a route distribution server to search for a server route from a departure point to a destination. The navigation apparatus includes a tentative route searcher which searches for the tentative route under the tentative searching condition that is associated with one of the server searching conditions which is sent to the route distribution server.

Abstract: A navigation device and the like capable of harmonizing a navigation route for guiding a mobile body set on the basis of a support route search result by a navigation server and a navigation route for also guiding the mobile body set independently of the navigation route, from a view point of guiding the mobile body smoothly. In the case where the second navigation route r2 is set in the condition where the first navigation route r1 is set, the second navigation route r2 is set and output so as to include a part dr1 of the first navigation route r1 which takes a position departing from the current position pt of the automobile 2 by a first distance d1.