JP2011027507A - Navigation system, navigation apparatus, navigation server, and fuel consumption comparison method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system, apparatus and server, and a fuel consumption comparison method, for promoting the willingness of an ecological drive by a user so as to cause a fuel consumption of a vehicle in a travel zone to virtually compete against the fuel consumption of the other vehicle. <P>SOLUTION: The system calculates the fuel consumption of the vehicle in the road zone, stores the road zone, a vehicle data and the fuel consumption in the road zone to a memory, generates a fuel-related data based on the vehicle data associated with the road zone and stored in the memory, and the fuel consumption in the road zone, compares the fuel-related data with the fuel consumption, generates comparison results based on the comparison, and outputs the comparison results. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation device, a navigation server, and a fuel consumption comparison method.

  Conventionally, a technique for allowing a user to grasp the fuel consumption of a vehicle has been disclosed.

  For example, in the navigation device described in Patent Document 1, the required fuel consumption up to the destination of the vehicle is calculated using the fuel efficiency for each road set for each vehicle type based on the actual fuel efficiency of the vehicle, and the fueling timing is given to the user. A technique for guiding is disclosed.

  In the fuel consumption meter for a vehicle described in Patent Document 2, the fuel consumption during idling is calculated in the fuel consumption calculation by controlling the fuel consumption amount to start when the vehicle exceeds a predetermined vehicle speed. A technology for providing a user with a value close to the actual driving fuel consumption is disclosed except for the amount.

  Further, in the fuel-saving driving support device described in Patent Document 3, the driving change operation and the running state for each driver are grasped, and when the deterioration of the fuel consumption is detected, the driving change operation and the driving state for improving the fuel consumption are detected. A technique for notifying advice is disclosed.

JP 2005-163484 A JP 2004-45180 A JP 2008-163781 A

  However, in the navigation device described in Patent Document 1, it is possible to guide a route that prioritizes fuel consumption based on the fuel consumption of each vehicle type, but in real time compared to the traveling vehicle and other vehicles of other vehicle types. In addition, there is a problem that it is impossible to grasp whether the host vehicle is traveling with economical fuel consumption.

  Further, in the vehicle fuel consumption meter described in Patent Document 2, only the vehicle speed is used as a reference for fuel consumption measurement, and the state of each road such as an uphill is not taken into consideration, so that the fuel consumption of any vehicle deteriorates. During traveling uphill, it has been determined that the fuel consumption of the vehicle is poor, and the user's willingness to eco-drive is reduced.

  Further, in the fuel-saving driving support device described in Patent Document 3, since the fuel consumption measurement for each driver in the same vehicle is performed, it is impossible to compare the fuel consumption in the same travel route with other vehicles of the same vehicle type. It also had problems.

  The present invention has been made in view of the above problems, and a navigation system that promotes energy saving by stimulating the user's willingness to eco-drive by virtually competing with the other vehicle for fuel efficiency in the traveling section of the host vehicle. An object is to provide a navigation device, a navigation server, and a fuel consumption comparison method.

  In order to achieve such an object, the navigation system of the present invention can communicate with a navigation server including at least a control unit and a storage unit, and a navigation device including at least an output unit, a control unit, and a storage unit. A navigation system connected to the vehicle, wherein the storage unit of the navigation server includes vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a year type for each road section; Fuel efficiency storage means for storing the fuel consumption in the road section of the vehicle in association with each other, the control unit of the navigation server, the road section transmitted from the navigation device, the vehicle data, and Received by the fuel consumption receiving means for receiving the fuel consumption in the road section and the fuel consumption receiving means. The fuel consumption storage means for storing the road section, the vehicle data, and the fuel consumption in the road section in the fuel consumption storage means, and the road section received by the fuel consumption reception means are stored in the fuel consumption storage means. Fuel efficiency related data generating means for generating fuel efficiency related data based on the vehicle data and the fuel efficiency of the road section, and the fuel efficiency related data generated by the fuel efficiency related data generating means are transmitted to the navigation device. Fuel consumption related data transmitting means, wherein the storage unit of the navigation device includes vehicle data storage means for storing the vehicle data of the vehicle on which the navigation device is mounted, and the navigation device The control unit calculates the fuel consumption for calculating the fuel consumption of the vehicle in the road section. A fuel efficiency transmitting means for transmitting the road section, the vehicle data, and the fuel efficiency in the road section to the navigation server; and a fuel efficiency related data receiving means for receiving the fuel efficiency related data transmitted from the navigation server. Comparing the fuel consumption related data received by the fuel consumption related data receiving means with the fuel consumption calculated by the fuel consumption calculating means, and generating a comparison result based on the comparison, and the comparison means And a comparison result output means for outputting the comparison result generated by the above-mentioned output unit.

  The navigation system of the present invention is characterized in that, in the navigation system described above, the vehicle data is an average fuel consumption in the road section of the same or different vehicle.

  The navigation system of the present invention is characterized in that, in the navigation system described above, the fuel consumption related data is the highest fuel consumption value in the road section of the vehicle in which the vehicle data is the same or different. To do.

  In the navigation system according to the present invention, in the navigation system described above, the output unit of the navigation device includes a display unit, and the comparison result is the fuel consumption related data received by the fuel consumption related data receiving unit. The display position data is a comparison between the travel position displayed based on the data and the travel position of the vehicle displayed based on the fuel consumption calculated by the fuel consumption calculation means. .

  In the navigation system according to the present invention, in the navigation system described above, the output unit of the navigation device includes a display unit, and the comparison result is the fuel consumption related data received by the fuel consumption related data receiving unit. It is the display data in which the data and the fuel consumption calculated by the fuel consumption calculating means are identifiable.

  The navigation system according to the present invention is characterized in that, in the navigation system described above, the output unit of the navigation device includes an audio output unit, and the comparison result is audio data.

  In the navigation system of the present invention, the comparison result is obtained by comparing the fuel consumption related data received by the fuel consumption related data receiving unit with the fuel consumption calculated by the fuel consumption calculating unit. It is the information regarding the difference of the fuel price based on.

  In the navigation system according to the present invention, the road section is a section between expressway interchanges or a section specified by a road link in road network data.

  In the navigation system according to the present invention, in the navigation system described above, the storage unit of the navigation server further includes road network data storage means for storing road network data, and the control unit of the navigation server includes the navigation system. Using the road network data stored in the road network data storage means, a guide route from the starting point to the destination satisfying the route search condition including at least the starting point and the destination transmitted from the device is searched. Route search means for generating guide route data; road section determination means for determining whether the road section stored in the fuel consumption storage means is included in the guide route searched by the route search means; The road segment determination means adds the guidance route to the guide route. When it is determined that the road section is included, the notice data generating means for generating the notice data for notifying that the road section is included, and the notice data generated by the notice data generating means are transmitted to the navigation device. Further, the control unit of the navigation device further includes a notice data receiving means for receiving the notice data transmitted from the navigation server, and the notice data received by the notice data receiving means. Is further provided with notice data output means for outputting the information via the output unit.

  Further, the navigation device of the present invention is a navigation device including at least an output unit, a control unit, and a storage unit, which is communicably connected to a navigation server including at least a storage unit, and the storage unit includes the above-described storage unit. Vehicle data storage means for storing vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a model year of a vehicle on which the navigation device is mounted, and the control unit includes a road Fuel consumption calculation means for calculating the fuel consumption of the vehicle in the section, road section, vehicle data, fuel consumption transmission means for transmitting the fuel consumption calculated by the fuel consumption calculation means to the navigation server, and transmission from the navigation server The vehicle data of the vehicle stored for each road section in the storage unit of the navigation server. And fuel consumption related data receiving means for receiving the fuel consumption related data of the road section generated based on the fuel consumption of the vehicle in the road section, and the fuel consumption related data and the fuel consumption received by the fuel consumption related data receiving means. A comparison unit that compares the fuel consumption calculated by the calculation unit and generates a comparison result based on the comparison; a comparison result output unit that outputs the comparison result generated by the comparison unit via the output unit; , Provided.

  Further, the navigation server of the present invention is a navigation server including at least a control unit and a storage unit that are communicably connected to a navigation device including at least an output unit and a control unit, and the storage unit includes: For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means, wherein the control unit is received by the fuel consumption receiving means for receiving the road section transmitted from the navigation device, the vehicle data, and the fuel consumption in the road section, and the fuel consumption receiving means. Fuel consumption storage means for storing the road section, the vehicle data, and the fuel consumption in the road section in the fuel consumption storage means. Characterized in that was.

  In the navigation server according to the present invention, in the navigation server described above, the control unit may store the vehicle data stored in the fuel consumption storage unit and the road section for the road segment received by the fuel consumption reception unit. Fuel consumption related data generation means for generating fuel consumption related data based on the fuel consumption in the above, fuel consumption related data transmission means for transmitting the fuel consumption related data generated by the fuel consumption related data generation means to the navigation device, Is further provided.

  Further, the navigation server of the present invention is a navigation server including at least a control unit and a storage unit that are communicably connected to a navigation device including at least an output unit, and the storage unit is provided for each road section. Vehicle data including at least one of the vehicle type, vehicle identification code, displacement, or year, and fuel consumption storage means for storing the vehicle fuel consumption in the road section in association with each other. The control unit includes a fuel consumption calculation unit that calculates the fuel consumption of the vehicle in the road section, the road section, the vehicle data, and the fuel consumption in the road section calculated by the fuel consumption calculation unit. Fuel consumption storage means stored in the fuel consumption storage means; for the road section, the vehicle data stored in the fuel consumption storage means; The fuel consumption related data generating means for generating fuel consumption related data based on the fuel consumption in the above, the fuel consumption related data generated by the fuel consumption related data generating means, and the fuel consumption calculated by the fuel consumption calculating means Comparison means for comparing and generating a comparison result based on the comparison, and comparison result to be output via the output unit of the navigation device by transmitting the comparison result generated by the comparison device to the navigation device Output control means.

  The fuel consumption comparison method of the present invention is a navigation system in which a navigation server including at least a control unit and a storage unit, and a navigation device including at least an output unit, a control unit, and a storage unit are communicably connected. The fuel consumption comparison method to be executed, wherein the storage unit of the navigation server includes at least one of a vehicle type, a vehicle identification code, a displacement, or a year type for each road section. And fuel consumption storage means for storing the vehicle fuel consumption in the road section in association with each other, and the storage unit of the navigation device stores the vehicle data of the vehicle on which the navigation device is mounted. Vehicle data storage means, and executed by the control unit of the navigation device. A fuel efficiency calculation step for calculating the fuel efficiency of the vehicle in the vehicle, and a fuel efficiency for transmitting the road section, the vehicle data, and the fuel efficiency in the road section to the navigation server, which is executed by the control unit of the navigation device. A transmission step, a fuel consumption reception step for receiving the road section, the vehicle data, and the fuel consumption in the road section transmitted from the navigation device, executed in the control unit of the navigation server, and the navigation server A fuel consumption storage step for storing the road section, the vehicle data, and the fuel consumption in the road section received in the fuel consumption reception step in the fuel consumption storage means, which is executed in the control section of the vehicle; and the navigation server In the above control section For the road section received in the fuel consumption reception step, executed, the fuel efficiency is generated based on the vehicle data stored in the fuel efficiency storage means and the fuel efficiency in the road section. A fuel efficiency related data transmission step of transmitting the fuel efficiency related data generated in the fuel efficiency related data generation step executed in the control unit of the navigation server to the navigation device; The fuel consumption related data receiving step for receiving the fuel consumption related data transmitted from the navigation server, executed in the control unit of the apparatus, and the fuel consumption related data receiving step executed in the control unit of the navigation apparatus. The above fuel consumption related data received, The fuel consumption calculated in the fuel consumption calculation step is compared with the comparison step for generating a comparison result based on the comparison, and the comparison step executed in the control unit of the navigation device. A comparison result output step of outputting the comparison result via the output unit.

  Further, the fuel consumption comparison method of the present invention is a fuel consumption comparison method executed in a navigation device having at least an output unit, a control unit, and a storage unit, which is communicably connected to a navigation server having at least a storage unit. The storage unit includes vehicle data storage means for storing vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a model year of the vehicle on which the navigation device is mounted. A fuel efficiency calculation step for calculating the fuel efficiency of the vehicle in the road section, and the road section, the vehicle data, and the fuel efficiency in the road section are transmitted to the navigation server. A fuel consumption transmission step, and the navigation server that is transmitted from the navigation server. A fuel consumption related data receiving step of receiving the vehicle data of the vehicle stored in the storage unit for each road section and the fuel consumption related data of the road section generated based on the fuel consumption of the vehicle in the road section; The comparison step for comparing the fuel consumption related data received in the fuel consumption related data receiving step with the fuel consumption calculated in the fuel consumption calculation step and generating a comparison result based on the comparison, and the comparison step A comparison result output step of outputting the comparison result generated in step 1 through the output unit.

  The fuel consumption comparison method of the present invention is a fuel consumption comparison method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least an output unit and a control unit. The storage unit includes, for each road section, vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a year type, and fuel consumption in the road section of the vehicle. And a fuel consumption storage means for receiving the fuel consumption in the road section, the vehicle data, and the fuel consumption in the road section, which are transmitted from the navigation device and executed by the control unit. Step, and the fuel consumption in the road section, the vehicle data, and the fuel consumption in the road section received in the fuel consumption reception step. Characterized in that it comprises a fuel storing step of storing the fuel storage means.

  The fuel efficiency comparison method of the present invention is a fuel efficiency comparison method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least an output unit, The storage unit associates, for each road section, vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year type, and the fuel efficiency of the vehicle in the road section. A fuel consumption storage unit that stores the fuel consumption in the road section, the fuel consumption calculation step for calculating the fuel consumption of the vehicle in the road section, the road section, the vehicle data, and the fuel consumption calculation step. A fuel consumption storage step for storing the fuel consumption in the road section calculated in the fuel consumption storage means, and the fuel consumption for the road section. Fuel consumption related data generation step for generating fuel consumption related data based on the vehicle data stored in the memory means and the fuel consumption in the road section, and the fuel consumption related data generated in the fuel consumption related data generation step And the fuel consumption calculated in the fuel consumption calculation step, a comparison step for generating a comparison result based on the comparison, and the comparison result generated in the comparison step are transmitted to the navigation device. Thus, a comparison result output control step of outputting via the output unit of the navigation device is included.

  According to the present invention, the navigation server receives the road section, vehicle data, and fuel consumption in the road section transmitted from the navigation device, and stores the road section, vehicle data, and fuel consumption in the road section. The fuel consumption related data is generated based on the vehicle data stored in the storage unit for the road section and the fuel consumption in the road section, and the fuel consumption related data is transmitted to the navigation device. Calculating the fuel consumption of the vehicle in the road section, transmitting the road section, vehicle data and the fuel consumption in the road section to the navigation server, receiving the fuel consumption related data transmitted from the navigation server, And generate a comparison result based on the comparison, and the comparison result is output via the output unit. It is possible to output. Thereby, this invention can obtain the data which compared the fuel consumption of the own vehicle in driving | running | working, and the fuel consumption of the other vehicle or the past own vehicle for every driving | running | working area from which a gradient, speed limit, etc. differ. Therefore, it is possible to grasp the vehicle that leads to fuel saving in the travel route of the user, and it is possible to provide reference data for replacement. In addition, the present invention produces an effect that it is possible to grasp the timing of oil replacement, parts replacement, and the like by comparing the current condition of the host vehicle with past data.

  Further, according to the present invention, the fuel consumption related data can be an average fuel consumption in a road section of a vehicle having the same or different vehicle data. Thereby, since this invention can compare the fuel consumption of the own vehicle in driving | running | working and the average fuel consumption for every vehicle type etc. for every driving | running | working area, it is not only the condition of the own vehicle but user's own. There is an effect that driving skills can be grasped.

  Further, according to the present invention, the fuel consumption related data can be the highest fuel consumption in the road sections of the same or different vehicle data. Thus, the present invention makes it possible for the user to grasp how much the low fuel consumption driving called so-called eco-driving can be realized in the own vehicle by comparing the fuel consumption of the own vehicle with the fuel consumption of the vehicle with the lowest fuel consumption. There is an effect that can be done.

  Further, according to the present invention, the comparison result may be display data obtained by comparing the traveling position displayed based on the fuel efficiency related data and the traveling position of the vehicle displayed based on the fuel efficiency. it can. As a result, the present invention allows a driving user to visually understand the fuel consumption comparison between the host vehicle and the other vehicle, and if the vehicle is a low fuel consumption comparison target, how far the travel route is the same. There is an effect that it is possible to grasp whether the vehicle can run on fuel.

  Further, according to the present invention, the comparison result can be display data showing the fuel consumption related data and the fuel consumption in an identifiable manner. As a result, the present invention has an effect that it is possible to visually grasp whether the fuel efficiency is good or bad, and to make the user during driving easily aware of the fuel efficiency.

  According to the present invention, the comparison result can be audio data. Accordingly, the present invention has an effect that the fuel consumption comparison between the host vehicle and the other vehicle can be audibly grasped even when the monitor cannot be confirmed during traveling.

  Further, according to the present invention, the comparison result can be information relating to a difference in fuel price based on a comparison between fuel consumption related data and fuel consumption. Thereby, since this invention can grasp | ascertain an actual fuel price, there exists an effect that the fuel consumption of the own vehicle can be grasped | ascertained more intuitively.

  Further, according to the present invention, the road section can be a section between expressway interchanges or a section specified by a road link in road network data. Thereby, this invention has an effect that it is easy to make a general user grasp | ascertain a fuel consumption measurement area.

  According to the present invention, the navigation server uses the road network data to obtain a guide route from the departure point to the destination that satisfies the route search condition including at least the departure point and the destination transmitted from the navigation device. Search, generate guidance route data, determine whether the searched guidance route includes a road section stored in the storage unit, and if it is determined that the guidance route includes a road section, the road Generates notice data for notifying that a section is included, transmits the notice data to the navigation device, receives the notice data transmitted from the navigation server at the navigation device, and outputs the notice data via the output unit. be able to. As a result, the present invention has an effect that it is possible to notify the user in advance when there is a road section in which the fuel efficiency of the subject vehicle and the fuel efficiency to be compared exist on the guide route.

  In the above description, the navigation system of the present invention has been described as an example. However, the navigation apparatus, the navigation server, and the fuel consumption comparison method also have the same effect.

FIG. 1 is a block diagram illustrating an example of a configuration of a navigation system according to the first embodiment. FIG. 2 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment. FIG. 3 is a flowchart showing an example of fuel consumption calculation in the first embodiment. FIG. 4 is a diagram showing an example of a display screen displaying the comparison result in the present embodiment. FIG. 5 is a diagram showing an example of a display screen displaying the comparison result in the present embodiment. FIG. 6 is a block diagram illustrating an example of a configuration of the navigation server in the second embodiment. FIG. 7 is a flowchart showing an example of processing of the navigation server in the second embodiment. FIG. 8 is a flowchart illustrating an example of fuel consumption calculation in the second embodiment.

  Hereinafter, embodiments of a navigation system, a navigation device, a navigation server, a fuel consumption comparison method, and a program according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  Hereinafter, the configuration and processing of the present invention will be described in detail in the order of the first embodiment (navigation system) and the second embodiment (navigation server (server-driven type)).

[First Embodiment]
First, a first embodiment (navigation system) of the present invention will be described below with reference to FIGS.

[Navigation system configuration]
First, an example of the configuration of the navigation system in the first embodiment will be described below with reference to FIG. Here, FIG. 1 is a block diagram showing an example of the configuration of the navigation system in the first embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  As shown in FIG. 1, the navigation system according to the first embodiment of the present invention schematically includes a navigation server 200 including at least a control unit 202 and a storage unit 206, and a position acquisition unit 112 and an output unit ( The navigation device 100 including at least the display unit 114, the audio output unit 118), the input unit 116, the control unit 102, and the storage unit 106 is communicably connected. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. Each part of these navigation systems is communicably connected via an arbitrary communication path.

[Configuration of Navigation Server 200]
Here, in FIG. 1, the navigation server 200 receives the road section, vehicle data, and fuel consumption in the road section transmitted from the navigation device 100, and calculates the road section, vehicle data, and fuel consumption in the road section. The fuel consumption related data is generated based on the vehicle data stored in the storage unit 206 and stored in the storage unit 206 for the road section and the fuel consumption in the road section, and the fuel consumption related data is transmitted to the navigation device 100. Etc. The navigation server 200 is connected to the navigation apparatus 100 through the communication control interface unit 204 via the network 300 so as to be communicable with each other, and includes a control unit 202 and a storage unit 206. The control unit 202 is a control unit that performs various processes, and performs route search and the like. The communication control interface unit 204 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and performs communication control between the navigation server 200 and the network 300. Has the function to perform. That is, the communication control interface unit 204 has a function of communicating data with the navigation device 100 or the like via a communication line. The storage unit 206 is a storage unit such as a fixed disk device such as an HD (Hard Disk) or SSD (Solid State Drive), and various databases and tables (fuel consumption database 206a, road network database 206b, map database 206c, route search, etc. Information database 206d, guidance database 206e, etc.) are stored.

  Among these components of the storage unit 206, the fuel consumption database 206a includes, for each road section, vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a year type, Fuel consumption storage means for storing the fuel consumption in the road section of the vehicle in association with each other. Here, the vehicle may be a vehicle on which the navigation device 100 is mounted. The road section may be a section between expressway interchanges or a section specified by a road link in road network data. Here, the road link may be a road section between nodes having a predetermined length (for example, 100 m or more), and is a composite link in which a plurality of links are connected to form a predetermined length. Also good. The vehicle data includes vehicle types (for example, vehicle types (sedans, wagons, sports cars, etc.), vehicle names, etc.), identification codes (for example, registration numbers such as chassis number, body number, manufacturing number, license plate number, etc.) ), Displacement, year, as well as manufacturer, grade, engine type, power source difference (gasoline engine vehicle, diesel engine vehicle, hybrid vehicle, electric vehicle, fuel cell vehicle, etc.), and drive method (for example, FF) , FR, 4WD, MR, RR, etc.). Further, the fuel efficiency database 206a may further store the date and time (for example, season, day and night), weather (temperature, humidity, etc.), fuel price, and the like at the time of fuel efficiency measurement in association with each other.

  The road network database 206b is road network data storage means for storing road network data. Here, the road network data stored in the road network database 206b is based on a combination of node data of nodes that are nodes on the road network expression such as intersections and link data of road links that are road sections between nodes. Network data to be expressed. The node data may include a node number, position coordinates such as latitude and longitude, a node type, the number of links to be connected, a connection node number, an intersection name, and the like. The link data includes the link number, the type of road to be connected, the route number of national roads, prefectural roads, city roads, etc., the important route information, the attribute information of the administrative area where the road link exists, the link length, the road service status, It includes traffic regulations such as traffic restrictions on abnormal weather, vehicle weight restrictions, vehicle height restrictions, width, road width classification, number of lanes, speed limit, in-link attributes such as overpasses, tunnels and bridges, and names, etc. Also good. The road network data is stored in advance in the road network database 206b, and the control unit 202 of the navigation server 200 periodically downloads the latest data via the network 300 and stores the road data in the road network database 206b. Network data may be updated.

  The map database 206c is map data storage means for storing map map data. Here, in the present invention, the map data stored in the map database 206c is, for example, an outdoor map such as map data meshed according to a scale (for example, first to third region division mesh data, 100m mesh data, etc.). It may be data. The map database 206c may store outdoor map data such as road maps and route maps in the whole country and each region. Moreover, the map database 206c may further store indoor map data such as a floor guide map related to a building having height information (for example, a multilevel parking lot). The outdoor map data and indoor map data may be image data for map drawing. These outdoor map data and indoor map data are stored in advance in the map database 206c, and the control unit 202 of the navigation server 200 periodically downloads the latest data via the network 300 and stores it in the map database 206c. Outdoor map data and indoor map data may be updated.

  The route search information database 206d stores route search information including traffic regulation data, transportation timetable data, and usage fee data used when the control unit 202 creates a guide route that satisfies the route search condition. Route search information storage means. Here, the traffic regulation data stored in the route search information database 206d is data defining various types of traffic regulation. For example, in order to ensure vehicle traffic due to road damage or road construction, and traffic safety. Includes information such as the prohibition of entry of ordinary vehicles by the installed community zone, etc., and the prohibition of entry of ordinary vehicles due to being connected to private land. Further, the timetable data stored in the route search information database 206d is information representing timetables of transportation facilities such as trains, airplanes, buses, streetcars, ropeways, monorails, cable cars, and ships. The usage fee data stored in the route search information database 206d includes, for example, usage fees generated when using each transportation such as trains, airplanes, buses, streetcars, ropeways, monorails, cable cars, and ships, and automobiles. Information indicating fuel charges consumed when traveling on a motorcycle or the like may be used when the control unit 202 calculates transportation costs. Further, the route search information database 206d may store location information such as latitude and longitude information of facilities existing on a map used for route creation when traveling by car, motorcycle, bicycle, walking, or the like. These traffic regulation data, timetable data, and usage fee data are stored in advance in the route search information database 206d, and the control unit 202 of the navigation server 200 periodically downloads the latest data via the network 300. Then, the route search information stored in the route search information database 206d may be updated.

  The guidance database 206e is guidance data storage means for storing guidance data (voice guidance data, display guidance data, etc.) output on the guidance route. Here, the guidance database 206e is associated with “turn to the left at the next intersection” associated with the direction of travel at a branching point or the like on the guidance route, or when the current position approaches the selected facility. Voice guidance data such as “I will soon be a selected facility” is stored, and this voice guidance data is used when the control unit 102 of the navigation device 100 executes voice guidance as will be described later. In addition, the guidance database 206e stores display guidance data such as a turn-by-turn (TBT) associated with a traveling direction at a branch point on the guidance route, a guidance that the current position is close to the selected facility, and the like. The display guidance data is used when the control unit 102 of the navigation device 100 executes the display guidance as will be described later. Here, the TBT is an arrow navigation that displays guidance such as a right or left turn on the screen.

  The control unit 202 has an internal memory for storing a control program such as an OS (Operating System), a program that defines various processing procedures, and necessary data. And the control part 202 performs the information processing for performing various processes with these programs. In terms of functional concept, the control unit 202 includes a route search condition reception unit 202a, a route search unit 202b, a road segment determination unit 202c, a warning data generation unit 202d, a warning data transmission unit 202e, a fuel consumption reception unit 202f, a fuel consumption storage unit 202g, A fuel consumption related data generation unit 202h and a fuel consumption related data transmission unit 202i are provided.

  Among these, the route search condition reception unit 202a is route search condition reception means for receiving a route search condition including at least a departure place and a destination transmitted from the navigation device 100. Here, the route search condition may include a waypoint.

  In addition, the route search unit 202b stores, in the road network database 206b, the guide route from the departure point to the destination that satisfies the route search condition including at least the departure point and the destination received by the route search condition receiving unit 202a. It is a route search means that searches using the road network data and generates guide route data. Here, the route search unit 202b may further search for a guide route from the departure point to the destination that satisfies the route search condition using the route search information stored in the route search information database 206d. The route search unit 202b also guides the route from the starting point to the destination satisfying the route search condition including the starting point, the way point, and the destination received by the route search condition receiving unit 202a. May be searched using the road network data stored in the road network database 206b.

  The road section determination unit 202c is a road section determination unit that determines whether or not the guide route searched by the route search unit 202b includes a road section stored in the fuel consumption database 206a.

  The notice data generation unit 202d is notice data generation means for generating notice data for notifying that the road section is included when the road section determination unit 202c determines that the road section is included in the guide route. . Here, the notice data may be display data or voice data for notifying a message that is conscious of fuel consumption, such as “comparison of fuel consumption is possible”.

  The notice data transmission unit 202e is notice data transmission means for transmitting the notice data generated by the notice data generation unit 202d to the navigation device 100. Here, the advance notice data transmission unit 202e may further transmit the guidance route data generated by the route search unit 202b to the navigation device 100. Further, the advance notice data transmission unit 202e may further transmit map data including the guide route stored in the map database 206c to the navigation device 100. Further, the advance notice data transmission unit 202e may further transmit the guidance data output on the guidance route stored in the guidance database 206e to the navigation device 100.

  The fuel consumption receiving unit 202f is a fuel consumption receiving unit that receives a road section, vehicle data, and fuel consumption in the road section transmitted from the navigation device 100.

  The fuel consumption storage unit 202g is a fuel consumption storage unit that stores road sections, vehicle data, and fuel consumption in the road sections in the fuel consumption database 206a. Here, the fuel consumption storage unit 202g is a fuel consumption storage unit that stores the road section, vehicle data, and fuel consumption in the road section received by the fuel consumption reception unit 202f in the fuel consumption database 206a.

  In addition, the fuel consumption related data generation unit 202h is a fuel consumption related data generation unit that generates fuel consumption related data for a road section based on the vehicle data stored in the fuel consumption database 206a and the fuel consumption in the road section. Here, the road section may be received by the fuel consumption receiver 202f. In addition, the fuel consumption related data is the same as the vehicle data (for example, the case where all the vehicle data items match, as well as the case where specific vehicle data (for example, vehicle type, etc.) matches) or different vehicle data. The average fuel consumption in the road section may be used. Further, the fuel consumption related data may be the highest fuel consumption in the road sections of the same or different vehicle data. As a specific example, the fuel consumption related data generation unit 202h is based on the vehicle data stored in the fuel consumption database 206a, the fuel consumption, and the like, and the vehicle type (for example, the planned purchase type, The fuel consumption in the road section of the vehicle type or the like owned by the user of the navigation device 100 in the past may be extracted, the average fuel consumption may be calculated, and acquired as fuel consumption related data. In addition, the fuel consumption related data generation unit 202h may extract the highest ranking fuel consumption in the road section from the fuel consumption stored in the fuel consumption database 206a and obtain it as fuel consumption related data. Further, the fuel consumption related data generation unit 202h may acquire the fuel consumption related data under the same or similar situation based on the date and time at the time of fuel consumption measurement stored in the fuel consumption database 206a.

  The fuel consumption related data transmission unit 202 i is a fuel consumption related data transmission unit that transmits the fuel consumption related data generated by the fuel consumption related data generation unit 202 h to the navigation device 100.

[Configuration of Navigation Device 100]
In FIG. 1, the navigation apparatus 100 calculates the fuel consumption of the vehicle in the road section, transmits the road section, vehicle data, and the fuel consumption in the road section to the navigation server, and transmits the fuel consumption related information transmitted from the navigation server 200. It has functions such as receiving data, comparing fuel consumption related data and fuel consumption, generating a comparison result based on the comparison, and outputting the comparison result via an output unit. The navigation device 100 is, for example, a commercially available information processing device such as a desktop or notebook personal computer, a portable navigation device 100 such as a mobile phone, PHS, or PDA. In the present embodiment, the navigation device 100 is an in-vehicle information processing terminal that performs car navigation, and may be mainly an on-board car navigation device. Here, the navigation device 100 can communicate with, for example, an ECU (Electronic Control Unit) or an Engine Control Unit (ECU) mounted on the vehicle, and fuel consumption data (for example, fuel injection of a fuel injection device in the engine) from the ECU. (Cumulative value of quantity, etc.), vehicle speed pulse or mileage data, and vehicle type data (for example, vehicle type, grade, year, etc.), etc., can receive power from the vehicle, and has a built-in communication module In addition, it is a device that can communicate with the navigation server 200 and the like in the communication area via the network 300, and can download and update data such as map data from the navigation server 200. Further, the navigation device 100 may include a position acquisition unit 112 having a GPS function, an IMES function, or the like so that current position information can be acquired in real time. In addition, the navigation device 100 includes an output unit including at least a display unit 114 and an audio output unit 118. Here, the display unit 114 is a display unit (for example, a display or a monitor composed of a liquid crystal, an organic EL, or the like) that displays a display screen that displays the guidance route data received from the navigation server 200. The voice output unit 118 is voice output means (for example, a speaker) that outputs voice guidance data received from the navigation server 200 as voice. In addition, the navigation device 100 may include an input unit 116 (for example, a key input unit, a touch panel, a keyboard, a microphone, etc.) for inputting facility search conditions. The input / output control interface unit 108 controls the position acquisition unit 112, the display unit 114, the input unit 116, the audio output unit 118, and the like.

  Here, the position acquisition unit 112 may be, for example, a position acquisition unit that receives a position information signal transmitted from the position transmission device 500. Here, the position transmitting device 500 may be a GPS device that transmits a position information signal (GPS signal), and IMES that enables indoor positioning using a position information signal having characteristics similar to those of the GPS signal. It may be an IMES device that implements (Indoor Message System) technology. The IMES technology is a system developed from the framework of the quasi-zenith satellite, which is a positioning satellite system. Further, the position transmission device 500 may be a GPS repeater that transmits a GPS signal received outdoors indoors. Further, the position transmission device 500 may be a small transmission device that is arbitrarily installed on each floor of a building (for example, a multilevel parking lot) or an underground structure (for example, a tunnel, an underground parking lot). Good. In addition, self-position information (position ID etc.) according to an installation place is allocated to this small transmitter. When the navigation device 100 enters the communicable range, the navigation device 100 receives the self-position information transmitted from the small transmitter as a position information signal. The communication method at this time may be, for example, various short-range wireless methods such as an RFID (Radio Frequency Identification) tag system and Bluetooth (registered trademark), an infrared communication method, and the like. Further, the position transmission device 500 may be a wireless LAN access point. In the present embodiment, the control unit 102 may calculate position information including latitude, longitude, and height information from the position information signal acquired by the position acquisition unit 112. Further, the position acquisition unit 112 may acquire access point identification information by receiving a wireless LAN signal or the like. In the present embodiment, the control unit 102 may acquire the position information by specifying the position of the access point from the identification information unique to the access point acquired by the position acquisition unit 112.

  In addition, the position acquisition unit 112, for example, based on the direction information such as the traveling direction of the navigation device 100 detected by the direction sensor, the distance information detected by the distance sensor, and the map data, the user of the navigation device 100 You may acquire the positional information which shows a present position. Here, a geomagnetic sensor that detects the absolute traveling direction of the navigation device 100 and an optical gyro that detects the relative traveling direction of the navigation device 100 may be used as the direction sensor. In addition, the direction sensor may be an electronic compass that can acquire information on the direction and inclination by combining a geomagnetic sensor and an acceleration sensor. Further, when the navigation device 100 is an in-vehicle information processing terminal, the distance sensor may generate a pulse signal in proportion to the number of rotations of the axle and detect a movement distance in proportion to the number of pulse signals. Further, when the navigation device 100 is an in-vehicle information processing terminal, the position acquisition unit 112 may acquire position information indicating the own vehicle position from inter-vehicle communication of a communication device mounted on each vehicle.

  The communication control interface unit 104 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and communicates between the navigation device 100 and the network 300. It has a function to perform control. That is, the communication control interface unit 104 has a function of communicating data with the navigation server 200 or the like via a communication line. The network 300 has a function of connecting the navigation device 100 and external devices such as the navigation server 200 to each other. For example, the Internet, a telephone line network (including a mobile terminal line network and a general telephone line network), an intranet, etc. Power line communication (PLC) or the like may be used.

  The storage unit 106 is a storage means such as a small-capacity high-speed memory (for example, a cache memory) configured using SRAM (Static Random Access Memory) or the like, and various files (guide route data file 106a, map data). File 106b, guidance data file 106c, vehicle data file 106d, etc.) may be stored. Here, the storage unit 106 may temporarily store various files and the like. Further, the storage unit 106 may include a large-capacity storage unit such as a fixed disk device such as an HD or an SSD, and is used when various types of databases and files (for example, a route search or the like is performed by the control unit 102). Road network data, route search information, or a database or file storing map data or guidance data used for route guidance) may be stored.

  Among these, the guide route data file 106 a is guide route data storage means for storing guide route data received by the control unit 102.

  The map data file 106 b is a map data storage unit that stores map data received by the control unit 102.

  The guidance data file 106 c is guidance data storage means for storing guidance data received by the control unit 102.

  The vehicle data file 106d is vehicle data storage means for storing vehicle data of a vehicle on which the navigation device 100 is mounted. Here, the vehicle data is fuel consumption data (for example, a cumulative value of the fuel injection amount of the fuel injection device in the engine, etc.), vehicle speed pulse or travel distance data, etc. acquired from the ECU of the vehicle on which the navigation device 100 is mounted. May be included.

  The control unit 102 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and necessary data. And the control part 102 performs the information processing for performing various processes by these programs. The control unit 102 is functionally conceptually configured as a current position information acquisition unit 102a, a route search condition transmission unit 102b, a warning data reception unit 102c, a warning data output unit 102d, a route guidance unit 102e, a fuel consumption calculation unit 102f, and a fuel consumption transmission unit 102g. The fuel consumption related data receiving unit 102h, the comparison unit 102i, and the comparison result output unit 102j are configured. Here, when the road network data and the route search information are stored in the storage unit 106, the control unit 102 may search for a guide route using the road network data and the route search information.

  The current position information acquisition unit 102a is current position information acquisition means for acquiring the current position information of the user of the navigation device 100. Here, the current position information acquisition unit 102a may acquire the current position information of the user of the navigation device 100 every predetermined period (for example, every second). In addition, the current position information acquisition unit 102 a is the navigation apparatus 100 detected by the position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 112 and / or the direction sensor of the position acquisition unit 112. The current position information of the user of the navigation device 100 including the direction information such as the direction of travel may be acquired. In addition, the current position information acquisition unit 102d may acquire the position coordinates and the like of the current position input by the user via the input unit 116 as the current position information of the user of the navigation device 100. Here, the current position input by the user via the input unit 116 may be a position where the user actually exists, and a virtual current position arbitrarily selected by the user (for example, Tokyo It may be an arbitrary point such as a station or an airport in Osaka selected by a user in the area. Specifically, the current position information acquisition unit 102a is designated on the display screen that displays the map data displayed on the display unit 114 to the user via the input unit 116 (for example, on the touch panel display unit 114). Coordinates and / or orientation information that has been designated and the like may be acquired as current position information of the user of the navigation device 100. The current position information acquisition unit 102a may acquire the position information of the vehicle as the current position information of the user of the navigation device 100.

  The route search condition transmission unit 102b is route search condition transmission means for transmitting a route search condition including at least a departure place and a destination to the navigation server 200. Here, the departure point may be the current position of the user of the navigation device 100 based on the current position information acquired by the current position information acquisition unit 102a.

  The notice data receiving unit 102c is notice data transmitting means for receiving notice data transmitted from the navigation server 200. Here, the notice data receiving unit 102c may further receive guide route data transmitted from the navigation server 200. Further, the notice data receiving unit 102c may further receive map data including a guide route transmitted from the navigation server 200. Further, the notice data receiving unit 102c may further receive guidance data output from the navigation server 200 on the guidance route. The notice data receiving unit 102c may further store the received guide route data in the guide route data file 106a. Further, the notice data receiving unit 102c may further store the received map data in the map data file 106b. Further, the notice data receiving unit 102c may further store the received guide data in the guide data file 106c.

  The notice data output unit 102d is notice data output means for outputting the notice data received by the notice data receiving unit 102c via the output unit. Here, the notice data output unit 102d may cause the display unit 114 to display a display screen displaying the notice data that is the display data received by the notice data receiving unit 102c. Further, the notice data output unit 102d may output the notice data, which is the audio data received by the notice data receiving unit 102c, via the sound output unit 118.

  Further, the route guidance unit 102e outputs route guidance information based on the guidance route data received by the advance notice data receiving unit 102c and the current location information of the user of the navigation device 100 acquired by the current location information acquisition unit 102a. This is route guidance means for executing route guidance by outputting via. Here, the route guidance unit 102e may execute route guidance for each road section by outputting the route guidance information via the output unit. Further, the route guidance unit 102e receives the current location of the user of the navigation device 100 acquired by the current location information acquisition unit 102a in the guidance route data received by the notice data reception unit 102c and stored in the guidance route data file 106a. The route guidance may be executed by causing the display unit 114 to display route guidance information including a display screen on which information is superimposed. The route guidance unit 102e is received by the announcement data receiving unit 102c on the map data of the map including the guidance route received by the announcement data receiving unit 102c and stored in the map data file 106b, and the guidance route data file 106a. Route guidance information consisting of a display screen on which the navigation device 100 and the current location information of the user of the navigation device 100 acquired by the current location information acquisition unit 102a are superimposed and displayed on the display unit 114. The route guidance may be executed by displaying. In addition, the route guidance unit 102e may output the guidance data received by the advance notice data receiving unit 102c and stored in the guidance data file 106c via the output unit. Specifically, the route guidance unit 102e receives the voice guidance data associated with the traveling direction at the branch point on the guidance route included in the guidance data received by the advance notice data receiving unit 102c and stored in the guidance data file 106c. The route guidance may be executed by outputting via the voice output unit 118, and the display unit 114 displays a display screen on which display guidance data such as TBT included in the guidance data is displayed. May be executed.

  The fuel consumption calculation unit 102f is a fuel consumption calculation unit that calculates the fuel consumption of the vehicle in the road section.

  The fuel consumption transmission unit 102g is a fuel consumption transmission unit that transmits road sections, vehicle data, and fuel consumption in the road sections to the navigation server 200.

  The fuel consumption related data receiving unit 102 h is a fuel consumption related data receiving unit that receives the fuel consumption related data transmitted from the navigation server 200.

  The comparison unit 102i is a comparison unit that compares the fuel consumption related data received by the fuel consumption related data reception unit 102h with the fuel consumption calculated by the fuel consumption calculation unit 102f and generates a comparison result based on the comparison. Here, the comparison results are the travel position displayed based on the fuel consumption related data received by the fuel consumption related data receiving unit 102h, and the vehicle travel position displayed based on the fuel consumption calculated by the fuel consumption calculation unit 102f. The display data may be shown in comparison with each other. Further, the comparison result may be display data indicating that the fuel consumption related data received by the fuel consumption related data receiving unit 102h and the fuel consumption calculated by the fuel consumption calculating unit 102f can be identified. The comparison result may be audio data. Further, the comparison result may be information relating to a difference in fuel price based on a comparison between the fuel consumption related data received by the fuel consumption related data receiving unit 102h and the fuel consumption calculated by the fuel consumption calculation means. Further, the comparison result may be display data that displays a road section in which the color is changed. Further, the comparison result may be a bar graph showing fuel consumption. Further, the comparison unit 102i compares the fuel consumption related data received by the fuel consumption related data receiving unit 102h with the fuel consumption calculated by the fuel consumption calculation unit 102f, and the color of the vehicle icon indicating the travel position of the vehicle based on the comparison A comparison result that is display data obtained by changing the value may be generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is worse than the fuel consumption related data (for example, average fuel consumption) received by the fuel consumption related data receiving unit 102h, the comparison unit 102i determines the travel position of the vehicle. A comparison result that is display data in which the displayed vehicle icon is changed to a state where a black smoke is emitted or broken, and a road section (for example, a guide route) is displayed in a warning color (for example, red) is generated. May be. Further, as an example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is worse than the fuel consumption related data received by the fuel consumption related data receiving unit 102h, the comparison unit 102i is compared with the vehicle to be compared in the vicinity of the vehicle icon indicating the host vehicle. A comparison result may be generated which is display data in which a vehicle icon indicating is shown as a preceding vehicle. Further, as an example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is worse than the fuel consumption related data received by the fuel consumption related data receiving unit 102h, the comparison unit 102i is ahead of the vehicle icon indicating the host vehicle on the guidance system road. The comparison result which is the display data which showed the vehicle icon which shows a comparison object vehicle may be produced | generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is better than the fuel consumption related data received by the fuel consumption related data receiving unit 102h, the comparison unit 102i displays a glossy vehicle icon indicating the vehicle travel position. A comparison result that is display data in which a road section (for example, a guide route) is colored in an ecology (for example, green) and a logo of the Eco Route (registered trademark) is superimposed on the road section in a certain state, etc. It may be generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is worse than the fuel consumption related data received by the fuel consumption related data receiving unit 102h, the comparison unit 102i generates a comparison result that is sound data such as a beep sound. May be. For example, when the fuel consumption calculated by the fuel consumption calculation unit 102f is better than the fuel consumption related data received by the fuel consumption related data receiving unit 102h, the comparison unit 102i generates a comparison result that is audio data such as a fanfare. May be.

  The comparison result output unit 102j is a comparison result output unit that outputs the comparison result generated by the comparison unit 102i via the output unit. Here, the comparison result output unit 102j may cause the display unit 114 to display a display screen on which the comparison result generated by the comparison unit 102i is displayed. The comparison result output unit 102j may output the comparison result generated by the comparison unit 102i via the audio output unit 118. Further, the comparison result output unit 102j may further display a display screen displaying the fuel consumption and the like on the display unit 114. Further, the comparison result output unit 102j superimposes and displays the comparison result, which is display data generated by the comparison unit 102i, on the route guidance information including the display screen displayed on the display unit 114 by the route guidance unit 102e. May be.

  Above, description of an example of a structure of the navigation system in 1st Embodiment is finished.

[Navigation system processing]
Next, an example of the processing of the navigation system according to the first embodiment configured as described above will be described in detail with reference to FIGS. FIG. 2 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment.

  As shown in FIG. 2, first, the route search condition transmission unit 102b of the navigation device 100 sets a route search condition including at least a departure place and a destination input by the user via the input unit 116 to the navigation server 200. Transmit (step SA-1). Here, the departure point may be the current position of the user of the navigation device 100 based on the current position information acquired by the current position information acquisition unit 102a. Further, the route search condition may include a waypoint.

  Then, the route search condition receiving unit 202a of the navigation server 200 receives the route search condition including at least the departure place and the destination transmitted from the navigation device 100 (step SA-2).

  The navigation server 200 route search unit 202b then obtains a guide route from the starting point to the destination that satisfies the route search condition including at least the starting point and the destination received by the route searching condition receiving unit 202a, and the road network database 206b. The search is performed using the road network data stored in the route search information and the route search information stored in the route search information database 206d to generate guide route data (step SA-3). Here, the route search unit 202b guides the route from the starting point to the destination satisfying the route search condition including the starting point, the way point, and the destination received by the route searching condition receiving unit 202a. The route may be searched using the road network data stored in the road network database 206b and the route search information stored in the route search information database 206d.

  Then, the road segment determination unit 202c of the navigation server 200 determines whether or not the guide route searched by the route search unit 202b includes the road segment stored in the fuel consumption database 206a (step SA-4).

  The notice data generation unit 202d of the navigation server 200 includes the road section stored in the fuel consumption database 206a in the guide route searched by the route search unit 202b by the road section determination unit 202c in step SA-4. When the determination is made (step SA-4: Yes), the warning data including the display data and the voice data for notifying the fuel consumption conscious message such as “fuel consumption comparison is possible” is notified to notify that the road section is included. Generate (step SA-5).

  The advance notice data transmission unit 202e of the navigation server 200 does not include the road section stored in the fuel consumption database 206a in the guide route searched by the route search unit 202b by the road section determination unit 202c in step SA-4. (Step SA-4: No), the guide route data generated by the route search unit 202b, the map data including the guide route stored in the map database 206c, and the guide stored in the guide database 206e. The guidance data output on the route is transmitted to the navigation device 100, or when the warning data is generated by the warning data generator 202d in step SA-5, the warning data and the route generated by the warning data generator 202d Proposal generated by search unit 202b Route data, and transmits map data including guidance route stored in the map database 206c, and the guide data outputted on the guidance route stored in the guide database 206e on the navigation device 100 (Step SA-6).

  The notice data receiving unit 102c of the navigation device 100 receives the guide route data, the map data including the guide route, and the guide data output on the guide route transmitted from the navigation server 200, or from the navigation server 200. The transmitted notice data, guidance route data, map data including the guidance route, and guidance data output on the guidance route are received, the received guidance route data is stored in the guidance route data file 106a, and the received map data is received. Is stored in the map data file 106b, and the received guide data is stored in the guide data file 106c (step SA-7).

  When the advance notice data is received by the advance notice data receiving unit 102c in step SA-7, the advance notice data output unit 102d of the navigation device 100 displays the advance notice data that is display data received by the advance notice data receiving unit 102c. The display screen thus displayed is displayed on the display unit 114, and the preview data as audio data is output via the audio output unit 118 (step SA-8).

  Then, the control unit 102 of the navigation device 100, when the notification data is output by the notification data output unit 102d in step SA-8, the vehicle equipped with the navigation device 100 selected via the input unit 116 by the user. The comparison target information about the comparison target vehicle for which the fuel consumption comparison is performed is transmitted to the navigation server 200 (step SA-9). Here, the control unit 102 of the navigation device 100 may transmit the comparison target information set in advance by the user and stored in the storage unit 106 to the navigation server 200.

  And the control part 202 of the navigation server 200 receives the comparison object information transmitted from the navigation apparatus 100 (step SA-10).

  The route guidance unit 102e of the navigation device 100 is received by the notice data receiving unit 102c on the map data of the map including the guidance route received by the notice data receiving unit 102c and stored in the map data file 106b. The guidance route data stored in the route data file 106a and the current location information of the user of the navigation device 100 acquired every predetermined period (for example, every second) by the current location information acquisition unit 102a are superimposed. By displaying the route guidance information including the displayed display screen on the display unit 114, the route guidance is executed for each road section (step SA-11). Here, the route guidance unit 102e is further received by the advance notice data receiving unit 102c, and the voice guidance data associated with the traveling direction at the branch point on the guidance route included in the guidance data stored in the guidance data file 106c. May be output via the voice output unit 118, and the route guidance may be executed. The display unit 114 may display a display screen on which display guidance data such as TBT included in the guidance data is displayed. Guidance may be executed.

  And the fuel consumption calculation part 102f of the navigation apparatus 100 calculates the fuel consumption of the vehicle in the road area where the route guidance was performed by the route guidance part 102e in step SA-11 (step SA-12). Here, the fuel consumption calculation unit 102f may calculate the fuel consumption for each road section, or may calculate the fuel consumption from the end point of the road section to an intermediate point.

  Here, with reference to FIG. 3, an example of the fuel consumption calculation in the present embodiment will be described. FIG. 3 is a flowchart illustrating an example of fuel consumption calculation in the present embodiment.

  As shown in FIG. 3, first, the fuel consumption calculation unit 102f of the navigation device 100 calculates the current position of the user of the navigation device 100 and the end point of the road section based on the current position information acquired by the current position information acquisition unit 102a. If they match, the vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse is acquired from the ECU of the vehicle on which the navigation device 100 is mounted, and stored in the vehicle data file 106d (step SB-1).

  The fuel consumption calculation unit 102f of the navigation device 100 then matches the current position of the user of the navigation device 100 based on the current position information acquired by the current position information acquisition unit 102a and the other end point of the road section. Then, vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse is acquired from the ECU of the vehicle on which the navigation device 100 is mounted (step SB-2).

  And the fuel consumption calculation part 102f of the navigation apparatus 100 is included in the vehicle data stored in the vehicle data file 106d in step SB-1 and the cumulative value of the fuel injection amount included in the vehicle data acquired in step SB-2. The fuel consumption amount of the road section is calculated from the difference from the cumulative value of the fuel injection amount, and the vehicle speed pulse included in the vehicle data acquired in step SB-2 and stored in the vehicle data file 106d in step SB-1. The section distance traveled by the vehicle is calculated based on the vehicle speed pulse count of the road section, which is the difference from the vehicle speed pulse included in the vehicle data (step SB-3). Here, the fuel consumption calculation unit 102f is based on the current position information of the user of the navigation device 100 acquired by the current position information acquisition unit 102a and the map data of the map including the road section stored in the map data file 106b. The section distance of the road section may be calculated.

Here, the fuel consumption calculation unit 102f may calculate the section distance using the following equation.
(Section distance) = (travel distance per pulse) x (vehicle speed pulse count)

  And the fuel consumption calculation part 102f of the navigation apparatus 100 calculates the fuel consumption in the said road area using the fuel consumption and area distance calculated at step SB-3 (step SB-4).

Here, the fuel consumption calculation unit 102f may calculate the fuel consumption in the road section using the following equation.
(Fuel consumption) = (distance distance) / (fuel consumption)

  Returning to FIG. 2 again, the fuel consumption transmission unit 102g of the navigation device 100 transmits the road section, the vehicle data, and the fuel consumption in the road section to the navigation server 200 (step SA-13). Here, the fuel consumption transmission unit 102g may transmit the fuel consumption for each road section, or may transmit the fuel consumption of a plurality of road sections all at once. It may be transmitted together with the position information.

  And the fuel consumption receiving part 202f of the navigation server 200 receives the road section, vehicle data, and the fuel consumption in the said road section transmitted from the navigation apparatus 100 (step SA-14).

  Then, the fuel consumption storage unit 202g of the navigation server 200 stores the road section, the vehicle data, and the fuel consumption in the road section received by the fuel consumption reception unit 202f in the fuel consumption database 206a (step SA-15).

  Then, the fuel consumption related data generation unit 202h of the navigation server 200 stores the comparison target information received by the control unit 202 in step SA-10 and stored in the fuel consumption database 206a for the road section received by the fuel consumption reception unit 202f. The fuel efficiency related data is generated based on the vehicle data of the comparison target vehicle based on and the fuel efficiency in the road section (step SA-16). Here, the fuel consumption related data may be an average fuel consumption in a road section of the same or different vehicle data. Further, the fuel consumption related data may be the highest fuel consumption in the road sections of the same or different vehicle data. Further, the fuel consumption related data generation unit 202h is based on the fuel consumption stored in the fuel consumption database 206a, and is preset by a user of the navigation device 100 (for example, a vehicle of a planned purchase model type, a user of the navigation device 100 in the past). The average fuel consumption in a road section of a vehicle etc. owned by the vehicle may be calculated and acquired as fuel consumption related data. In addition, the fuel consumption related data generation unit 202h may extract the highest ranking fuel consumption in the road section from the fuel consumption stored in the fuel consumption database 206a and obtain it as fuel consumption related data. Further, the fuel consumption related data generation unit 202h may acquire the fuel consumption related data under the same or similar situation based on the date and time at the time of fuel consumption measurement stored in the fuel consumption database 206a.

  Then, the fuel consumption related data transmission unit 202i of the navigation server 200 transmits the fuel consumption related data generated by the fuel consumption related data generation unit 202h to the navigation device 100 (step SA-17).

  And the fuel consumption related data receiving part 102h of the navigation apparatus 100 receives the fuel consumption related data transmitted from the navigation server 200 (step SA-18).

  Then, the comparison unit 102i of the navigation device 100 compares the fuel consumption related data received by the fuel consumption related data receiving unit 102h and the fuel consumption calculated by the fuel consumption calculation unit 102f, and generates a comparison result based on the comparison (step). SA-19). Here, the comparison results are the travel position displayed based on the fuel consumption related data received by the fuel consumption related data receiving unit 102h, and the vehicle travel position displayed based on the fuel consumption calculated by the fuel consumption calculation unit 102f. The display data may be shown in comparison with each other. Further, the comparison result may be display data indicating that the fuel consumption related data received by the fuel consumption related data receiving unit 102h and the fuel consumption calculated by the fuel consumption calculating unit 102f can be identified. The comparison result may be audio data. Further, the comparison result may be information relating to a difference in fuel price based on a comparison between the fuel consumption related data received by the fuel consumption related data receiving unit 102h and the fuel consumption calculated by the fuel consumption calculation means.

  The comparison result output unit 102j of the navigation device 100 superimposes the comparison result, which is display data generated by the comparison unit 102i, on the route guidance information including the display screen displayed on the display unit 114 by the route guidance unit 102e. The comparison result as audio data is output via the audio output unit 118 (step SA-20). Here, the comparison result output unit 102j may cause the display unit 114 to display a display screen that displays the comparison result that is the display data generated by the comparison unit 102i.

  Here, with reference to FIG. 4 and FIG. 5, an example of the display screen displaying the comparison result in the present embodiment will be described. FIG. 4 is a diagram showing an example of a display screen displaying the comparison result in the present embodiment. FIG. 5 is a diagram showing an example of a display screen displaying the comparison result in the present embodiment.

  As shown in FIG. 4, on the right side of the display screen displaying the comparison result in the present embodiment, the guide route, the end point of the road section (white circle symbol), the current position of the host vehicle, and the fuel consumption of the host vehicle for each road section are shown. Is displayed on the left side of the display screen, and the fuel consumption of the comparison target vehicle (for example, the average fuel consumption of the same vehicle type) and the fuel consumption of the own vehicle (the vehicle on which the navigation device 100 is mounted) in the nearest road section where the own vehicle has traveled. The position where the comparison target vehicle and the host vehicle are present when the same fuel is consumed is displayed.

  Further, as shown in FIG. 5, the display screen displaying the comparison result in the present embodiment displays the guide route and the end point (white circle symbol) of the road section, and the comparison in the road section where the host vehicle is traveling. The fuel consumption of the target vehicle (for example, the average fuel consumption of the same vehicle type) and the fuel consumption of the vehicle from the end of the road section to the middle (for example, the current position) are displayed. A point where the host vehicle is located when the same fuel is consumed (in the case of the host vehicle, a current position or the like) is displayed.

  Returning to FIG. 2 again, the control unit 102 of the navigation device 100 inputs the current location of the user of the navigation device 100 based on the current location information acquired by the current location information acquisition unit 102a and the user in step SA-1. It is determined whether or not the destination input via the unit 116 matches (step SA-21).

  Then, the control unit 102 of the navigation device 100 and the current position of the user of the navigation device 100 based on the current location information acquired by the current position information acquisition unit 102a and the user through the input unit 116 in step SA-1. If it is determined that the destination input in step S2 matches (step SA-21: Yes), the process ends.

  On the other hand, the control unit 102 of the navigation apparatus 100 and the current position of the user of the navigation apparatus 100 based on the current location information acquired by the current position information acquisition unit 102a and the user via the input unit 116 in step SA-1. If it is determined that the destination inputted does not match (step SA-21: No), the process proceeds to step SA-11.

  Above, description of an example of the process of the navigation system in 1st Embodiment is finished.

[Second Embodiment]
Next, a second embodiment (navigation server 200 (server-driven type)) of the present invention will be described below with reference to FIGS. Here, FIG. 6 is a block diagram showing an example of the configuration of the navigation server 200 in the second embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  In the second embodiment, the output timing of the navigation device 100 is adjusted by the navigation server 200 and the output unit of the navigation device 100 is transmitted to the navigation device 100 by adjusting the timing of the output. It is functioning. As described above, the second embodiment is different from the first embodiment in that the navigation server 200 performs server-driven processing.

[Configuration of the navigation server 200 (server-driven type)]
First, an example of the configuration of the navigation server 200 (server-driven type) in the second embodiment will be described below with reference to FIG.

  As illustrated in FIG. 6, the navigation server 200 according to the second embodiment of the present invention includes at least a position acquisition unit 112, an output unit (display unit 114 and audio output unit 118), an input unit 116, and a control unit 102. The navigation device 100 is communicably connected, and includes at least a control unit 202 and a storage unit 206. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. The navigation server 200 and the navigation device 100 are communicably connected via an arbitrary communication path.

  In FIG. 6, the navigation server 200 calculates the fuel consumption of the vehicle in the road section, stores the road section, vehicle data, and the fuel consumption in the road section in the storage unit 206, and the road section is stored in the storage unit 206. The fuel consumption related data is generated based on the vehicle data and the fuel consumption in the road section, the fuel consumption related data is compared with the fuel consumption, a comparison result based on the comparison is generated, and the comparison result is used as the navigation device 100. By transmitting to, it has the function of outputting via the output part of the navigation apparatus 100.

  The functions of the communication control interface unit 204 and the storage unit 206 (the road network database 206b, the map database 206c, the route search information database 206d, the guidance database 206e, etc.) in the navigation server 200, and the position acquisition unit 112 in the navigation device 100, Since the functions of the display unit 114, the input unit 116, and the audio output unit 118 are the same as those in the first embodiment, description thereof is omitted.

  The fuel consumption database 206a is further transmitted from the navigation device 100, and is fuel consumption data (for example, a cumulative value of the fuel injection amount of the fuel injection device in the engine, etc.) acquired from the ECU of the vehicle on which the navigation device 100 is mounted. Further, vehicle data including vehicle speed pulses or travel distance data may be stored.

  In FIG. 6, the control unit 202 has an internal memory for storing a control program such as an OS, a program defining various processing procedures, and necessary data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 functionally conceptually includes a route search condition reception unit 202a, a route search unit 202b, a road section determination unit 202c, a notice data generation unit 202d, a fuel consumption storage unit 202g, a fuel consumption related data generation unit 202h, and a position information signal reception. 202j, current position information acquisition unit 202k, notice data output control unit 202m, route guidance information generation unit 202n, route guidance control unit 202p, fuel consumption calculation unit 202q, comparison unit 202r, and comparison result output control unit 202s. Composed. The functions of the route search condition receiving unit 202a, the route search unit 202b, the road section determination unit 202c, the notice data generation unit 202d, the fuel consumption storage unit 202g, and the fuel consumption related data generation unit 202h are the same as in the first embodiment. Therefore, the description is omitted.

  Among these, the position information signal receiving unit 202j is a position information signal receiving unit that receives the position information signal transmitted from the navigation device 100 and received by the position acquisition unit 112 of the navigation device 100. Here, the position information signal receiving unit 202j may further receive direction information such as the traveling direction of the navigation device 100 detected by the direction sensor of the position acquisition unit 112 of the navigation device 100. Further, the position information signal receiving unit 202j may receive the position information signal received from the position acquisition unit 112 of the navigation device 100 and transmitted from the navigation device 100 at predetermined intervals (for example, every second). Good. Further, the position information signal receiving unit 202j may receive information on the current position and / or the traveling direction input by the user via the input unit 116 of the navigation device 100. Specifically, the position information signal receiving unit 202j is designated on the display screen displaying the map data displayed on the display unit 114 of the navigation device 100 via the input unit 116 of the navigation device 100 (for example, Coordinates and / or orientation information that has been designated) on the display unit 114 of the touch panel navigation device 100 may be received. Here, the position information signal receiving unit 202j receives the position information signal transmitted from the navigation device 100 and received by the position acquisition unit 112 of the navigation device 100 at predetermined intervals (for example, every second). Also good.

  The current position information acquisition unit 202k is a current position information acquisition unit that acquires the current position information of the user of the navigation device 100 based on the position information signal received by the position information signal reception unit 202j. Here, the current position information acquisition unit 202k includes the position information calculated from the position information signal received by the position information signal receiving unit 202j and / or the azimuth information received by the position information signal receiving unit 202j. The current position information of 100 users may be acquired. Further, the current position information of the user of the navigation device 100 may be acquired based on the position information signal received at predetermined intervals (for example, every second) by the position information signal receiving unit 202j. In addition, the current position information acquisition unit 202k is information received by the user via the input unit 116 of the navigation device 100 and / or information on the traveling direction received by the position information signal receiving unit 202j. The current position information of the user of the navigation device 100 may be acquired.

  Further, the notice data output control unit 202m generates output data based on the notice data generated by the notice data generation unit 202d and transmits the data to the navigation device 100, thereby outputting the data via the output unit of the navigation device 100. It is a notice data output control means to be made. Here, the notice data output control unit 202m generates a display screen that displays the notice data that is the display data generated by the notice data generation unit 202d, and transmits the display screen to the navigation device 100, thereby displaying the display screen. 114 may be displayed. The notice data output control unit 202m may output the notice data via the sound output unit 118 by transmitting the notice data, which is the voice data generated by the notice data generation unit 202d, to the navigation device 100. .

  The route guidance information generation unit 202n generates route guidance information based on the guidance route data generated by the route search unit 202b and the current position information of the user of the navigation device 100 acquired by the current position information acquisition unit 202k. Route guidance information generating means. Here, the route guidance information generation unit 202n superimposes and displays the current location information of the user of the navigation device 100 acquired by the current location information acquisition unit 202k on the guidance route data generated by the route search unit 202b. You may generate the route guidance information which consists of a display screen. In addition, the route guidance information generation unit 202n generates the guidance route data generated by the route search unit 202b and / or the current position information acquisition unit 202k on the map data of the map including the guidance route stored in the map database 206c. Route guidance information including a display screen on which the current position information of the user of the navigation device 100 acquired by the above-described display is superimposed may be generated. Further, the route guidance information generating unit 202n may generate route guidance information based on the guidance data stored in the guidance database 206e. Specifically, the route guidance information generation unit 202n outputs voice guidance data output on the guidance route included in the guidance data stored in the guidance database 206e and / or display guidance data such as TBT included in the guidance data. Route guidance information consisting of a display screen displaying may be generated.

  In addition, the route guidance control unit 202p transmits the route guidance information generated by the route guidance information generation unit 202n to the navigation device 100, thereby outputting the route guidance information via the output unit of the navigation device 100 and executing the route guidance. It is route guidance control means. Here, the route guidance control unit 202p transmits the route guidance information generated by the route guidance information generation unit 202n to the navigation device 100, so that the route guidance information is output via the output unit of the navigation device 100, and for each road section. Route guidance may be executed. In addition, the route guidance control unit 202p displays the display screen displaying the route guidance information as display data on the display unit 114 by transmitting the route guidance information generated by the route guidance information generation unit 202n to the navigation device 100. And route guidance may be executed. Further, the route guidance control unit 202p transmits route guidance information based on the guidance data stored in the guidance database 206e to the navigation device 100, thereby displaying a display screen displaying the route guidance information as display guidance data. The route guidance may be executed by displaying the route guidance information as voice guidance data via the voice output unit 118.

  The fuel consumption calculation unit 202q is fuel consumption calculation means for calculating the fuel consumption of the vehicle in the road section.

  The comparison unit 202r is a comparison unit that compares the fuel consumption related data generated by the fuel consumption related data generation unit 202h with the fuel consumption calculated by the fuel consumption calculation unit 202q and generates a comparison result based on the comparison. Here, the comparison results are the travel position displayed based on the fuel consumption related data generated by the fuel consumption related data generation unit 202h, and the vehicle travel position displayed based on the fuel consumption calculated by the fuel consumption calculation unit 202q. The display data may be shown in comparison with each other. In addition, the comparison result may be display data that can identify the fuel consumption related data generated by the fuel consumption related data generation unit 202h and the fuel consumption calculated by the fuel consumption calculation unit 202q. The comparison result may be audio data. Further, the comparison result may be information relating to a difference in fuel price based on a comparison between the fuel consumption related data generated by the fuel consumption related data generation unit 202h and the fuel consumption calculated by the fuel consumption calculation means. Further, the comparison result may be display data that displays a road section in which the color is changed. Further, the comparison result may be a bar graph showing fuel consumption. In addition, the comparison unit 202r compares the fuel consumption related data generated by the fuel consumption related data generation unit 202h with the fuel consumption calculated by the fuel consumption calculation unit 202q, and the color of the vehicle icon indicating the travel position of the vehicle based on the comparison A comparison result that is display data obtained by changing the value may be generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is worse than the fuel consumption related data (for example, average fuel consumption) generated by the fuel consumption related data generation unit 202h, the comparison unit 202r determines the travel position of the vehicle. A comparison result that is display data in which the displayed vehicle icon is changed to a state where a black smoke is emitted or broken, and a road section (for example, a guide route) is displayed in a warning color (for example, red) is generated. May be. For example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is worse than the fuel consumption related data generated by the fuel consumption related data generation unit 202h, the comparison unit 202r is compared with the vehicle to be compared in the vicinity of the vehicle icon indicating the host vehicle. A comparison result may be generated which is display data in which a vehicle icon indicating is shown as a preceding vehicle. Further, as an example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is worse than the fuel consumption related data generated by the fuel consumption related data generation unit 202h, the comparison unit 202r is ahead of the vehicle icon indicating the host vehicle on the guidance system road. The comparison result which is the display data which showed the vehicle icon which shows a comparison object vehicle may be produced | generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is better than the fuel consumption related data generated by the fuel consumption related data generation unit 202h, the comparison unit 202r displays a glossy vehicle icon indicating the vehicle travel position. A comparison result that is display data in which a road section (for example, a guide route) is colored in an ecology (for example, green) and a logo of the Eco Route (registered trademark) is superimposed on the road section in a certain state, etc. It may be generated. For example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is worse than the fuel consumption related data generated by the fuel consumption related data generation unit 202h, the comparison unit 202r generates a comparison result that is sound data such as a beep sound. May be. For example, when the fuel consumption calculated by the fuel consumption calculation unit 202q is better than the fuel consumption related data generated by the fuel consumption related data generation unit 202h, the comparison unit 202r generates a comparison result that is audio data such as a fanfare. May be.

  In addition, the comparison result output control unit 202s generates output data based on the comparison result generated by the comparison unit 202r and transmits it to the navigation device 100, thereby outputting the comparison result via the output unit of the navigation device 100. Output control means. Here, the comparison result output control unit 202s generates a display screen that displays the comparison result that is the display data generated by the comparison unit 202r, and transmits the display screen to the navigation device 100, whereby the display screen is displayed on the display unit 114. It may be displayed. In addition, the comparison result output control unit 202s may output the comparison result via the audio output unit 118 by transmitting the comparison result that is the audio data generated by the comparison unit 202r to the navigation device 100. Further, the comparison result output control unit 202s generates a display screen in which the comparison result generated by the comparison unit 202r is superimposed on the route guidance information including the display screen generated by the route guidance information generation unit 202n, and the navigation device By transmitting to 100, the display screen may be displayed on the display unit 114.

  Above, description of an example of a structure of the navigation server 200 in 2nd Embodiment is finished.

[Processing of navigation server 200 (server-driven type)]
Next, an example of processing of the navigation server 200 according to the second embodiment configured as described above will be described in detail with reference to FIGS. 7 and 8 below. FIG. 7 is a flowchart showing an example of processing of the navigation server in the second embodiment.

  As shown in FIG. 7, first, the control unit 102 of the navigation device 100 transmits a route search condition including at least a starting point and a destination input by the user via the input unit 116 to the navigation server 200 ( Step SC-1). Here, the route search condition may include a waypoint.

  Then, the route search condition receiving unit 202a of the navigation server 200 receives the route search condition including at least the departure place and the destination transmitted from the navigation device 100 (step SC-2).

  Then, the route search unit 202b of the navigation server 200 obtains the guide route from the starting point to the destination that satisfies the route search condition including at least the starting point and the destination received by the route searching condition receiving unit 202a. A search is performed using the road network data stored in 206b and the route search information stored in the route search information database 206d to generate guide route data (step SC-3). Here, the departure point is the current location information acquisition unit 202k of the user of the navigation device 100 based on the current location information acquired based on the location information signal received from the navigation device 100 by the location information signal reception unit 202j. It may be a position. The route search unit 202b also guides the route from the starting point to the destination satisfying the route search condition including the starting point, the way point, and the destination received by the route search condition receiving unit 202a. May be searched using the road network data stored in the road network database 206b and the route search information stored in the route search information database 206d.

  Then, the road segment determination unit 202c of the navigation server 200 determines whether or not the guide route searched by the route search unit 202b includes the road segment stored in the fuel consumption database 206a (step SC-4).

  The notice data generation unit 202d of the navigation server 200 includes the road section stored in the fuel consumption database 206a in the guide route searched by the route search unit 202b by the road section determination unit 202c in step SC-4. If the determination is made (step SC-4: Yes), the warning data including the display data and the voice data for notifying the fuel consumption conscious message such as “Fuel consumption comparison is possible” is notified in advance that the road section is included. Generate (step SC-5).

  Then, the notice data output control unit 202m of the navigation server 200 generates a display screen that displays the notice data that is the display data generated by the notice data generation unit 202d, and transmits the display screen to the navigation device 100, whereby the display screen is displayed. Is displayed on the display unit 114, and the notice data, which is the voice data generated by the notice data generation unit 202d, is transmitted to the navigation device 100, so that the notice data is output via the voice output unit 118 (step SC-6). ).

  And the control part 202 of the navigation apparatus 100 transmits the comparison object information about the comparison object vehicle which compares fuel consumption with the vehicle of the navigation apparatus 100 selected via the input part 116 by the user to the navigation server 200 ( Step SC-7). Here, the control unit 102 of the navigation device 100 may transmit the comparison target information set in advance by the user to the navigation server 200.

  And the control part 202 of the navigation server 200 receives the comparison object information transmitted from the navigation apparatus 100 (step SC-8).

  Then, the route guidance information generation unit 202n of the navigation server 200 includes the road section stored in the fuel consumption database 206a in the guidance route searched by the route search unit 202b by the road section determination unit 202c in step SC-4. If it is determined that there is no data (step SC-4: No), or output data based on the notice data generated by the notice data generation unit 202d by the notice data output control unit 202m in step SC-6, When output to the navigation device 100 via the output unit of the navigation device 100, the route search unit 202b generates the map data including the guidance route stored in the map database 206c. Guide route data and current position information acquisition unit 20 Every predetermined period by k (for example, every second, etc.) for generating route guidance information which is composed of a display screen displayed by superimposing the current position information of the user of the navigation device 100 is acquired (step SC-9). Here, the route guidance information generation unit 202n receives voice guidance data output on the guidance route included in the guidance data stored in the guidance database 206e and / or display guidance data such as TBT included in the guidance data. You may generate the route guidance information which consists of the displayed display screen.

  Then, the route guidance control unit 202p of the navigation server 200 performs the guidance route data on the map data including the guidance route generated by the route guidance information generation unit 202n and the current position information acquisition unit 202k at predetermined intervals. By transmitting to the navigation device 100 route guidance information composed of a display screen displayed by superimposing the current position information of the user of the navigation device 100 acquired (for example, every second), the navigation device 100 By displaying on the display unit 114, route guidance is executed for each road section (step SC-10). Further, the route guidance control unit 202p further displays route information on the route guidance information, which is display guidance data, by transmitting route guidance information based on the guidance data stored in the guidance database 206e to the navigation device 100. The route guidance may be executed by causing the unit 114 to display and / or output route guidance information as voice guidance data via the voice output unit 118.

  And the fuel consumption calculation part 202q of the navigation server 200 calculates the fuel consumption of the vehicle in a road area (step SC-11).

  Here, an example of the fuel consumption calculation in the present embodiment will be described with reference to FIG. FIG. 8 is a flowchart showing an example of fuel consumption calculation in the present embodiment.

  As shown in FIG. 8, the fuel efficiency calculation unit 202q of the navigation server 200 includes the current position information acquired by the current position information acquisition unit 202k based on the position information signal received from the navigation device 100 by the position information signal reception unit 202j. If the current position of the user of the navigation device 100 based on the above and the end point of the road section match, a vehicle data acquisition command is transmitted to the navigation device 100 (step SD-1).

  And the control part 102 of the navigation apparatus 100 receives the acquisition command of the vehicle data transmitted from the navigation server 200 (step SD-2).

  Then, the control unit 102 of the navigation device 100 acquires vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse from the ECU of the vehicle on which the navigation device 100 is mounted based on the acquisition command received in step SD-2. And transmitted to the navigation server (step SD-3).

  The fuel consumption calculation unit 202q of the navigation server 200 receives vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse transmitted from the navigation device 100 (step SD-4).

  Then, the fuel consumption calculation unit 202q of the navigation server 200 stores the vehicle data including at least the accumulated value of the fuel injection amount and the vehicle speed pulse received in Step SD-4 in the fuel database 206a (Step SD-5).

  Then, the fuel efficiency calculation unit 202q of the navigation server 200 uses the current position information acquisition unit 202k to navigate the navigation apparatus 100 based on the current position information acquired based on the position information signal received from the navigation apparatus 100 by the position information signal reception unit 202j. When the current position of the user matches the other end point of the road section, a vehicle data acquisition command is transmitted to the navigation device 100 (step SD-6).

  And the control part 102 of the navigation apparatus 100 receives the acquisition command of the vehicle data transmitted from the navigation server 200 (step SD-7).

  Then, the control unit 102 of the navigation device 100 acquires vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse from the ECU of the vehicle on which the navigation device 100 is mounted based on the acquisition command received in step SD-7. And transmitted to the navigation server (step SD-8).

  Then, the fuel consumption calculation unit 202q of the navigation server 200 receives vehicle data including at least the cumulative value of the fuel injection amount and the vehicle speed pulse transmitted from the navigation device 100 (step SD-9).

  The fuel consumption calculation unit 202q of the navigation server 200 then accumulates the fuel injection amount included in the vehicle data received in step SD-9 and the fuel included in the vehicle data stored in the fuel consumption database 206a in step SD-5. The fuel consumption amount of the road section is calculated from the difference from the cumulative value of the injection amount, and stored in the vehicle data file 106e in step SD-5 and the vehicle speed pulse included in the vehicle data received in step SD-9. A section distance traveled by the vehicle is calculated based on the vehicle speed pulse count of the road section, which is the difference from the vehicle speed pulse included in the vehicle data (step SD-10). Here, the fuel consumption calculation unit 202q is based on the current position information of the user of the navigation device 100 acquired by the current position information acquisition unit 102a and the map data of the map including the road section stored in the map database 206c. The section distance of the road section may be calculated.

  And the fuel consumption calculation part 202q of the navigation server 200 calculates the fuel consumption in the said road area using the fuel consumption and area distance calculated at step SD-10 (step SD-11).

  Returning to FIG. 7 again, the fuel consumption storage unit 202g of the navigation server 200 stores the fuel consumption in the road section calculated by the fuel consumption calculation unit 202q and the road section and vehicle data corresponding to the fuel consumption in the fuel consumption database 206a ( Step SC-12).

  The fuel consumption related data generation unit 202h of the navigation server 200 receives the road section corresponding to the fuel consumption calculated by the fuel consumption calculation unit 202q by the control unit 202 in step SC-8 stored in the fuel consumption database 206a. The fuel consumption related data is generated based on the vehicle data of the comparison target vehicle based on the comparison target information and the fuel consumption in the road section (step SC-13). Here, the fuel consumption related data may be an average fuel consumption in a road section of the same or different vehicle data. Further, the fuel consumption related data may be the highest fuel consumption in the road sections of the same or different vehicle data. Further, the fuel consumption related data generation unit 202h is based on the fuel consumption stored in the fuel consumption database 206a, and is preset by a user of the navigation device 100 (for example, a vehicle of a planned purchase model type, a user of the navigation device 100 in the past). The average fuel consumption in a road section of a vehicle etc. owned by the vehicle may be calculated and acquired as fuel consumption related data. In addition, the fuel consumption related data generation unit 202h may extract the highest ranking fuel consumption in the road section from the fuel consumption stored in the fuel consumption database 206a and obtain it as fuel consumption related data. Further, the fuel consumption related data generation unit 202h may acquire the fuel consumption related data under the same or similar situation based on the date and time at the time of fuel consumption measurement stored in the fuel consumption database 206a.

  Then, the comparison unit 202r of the navigation server 200 compares the fuel consumption related data generated by the fuel consumption related data generation unit 202h with the fuel consumption calculated by the fuel consumption calculation unit 202q, and generates a comparison result based on the comparison (step). SC-14). Here, the comparison results are the travel position displayed based on the fuel consumption related data generated by the fuel consumption related data generation unit 202h, and the vehicle travel position displayed based on the fuel consumption calculated by the fuel consumption calculation unit 202q. The display data may be shown in comparison with each other. In addition, the comparison result may be display data that can identify the fuel consumption related data generated by the fuel consumption related data generation unit 202h and the fuel consumption calculated by the fuel consumption calculation unit 202q. The comparison result may be audio data. Further, the comparison result may be information relating to a difference in fuel price based on a comparison between the fuel consumption related data generated by the fuel consumption related data generation unit 202h and the fuel consumption calculated by the fuel consumption calculation means.

  The comparison result output control unit 202s of the navigation server 200 generates a display screen in which the comparison result generated by the comparison unit 202r is superimposed on the route guidance information including the display screen generated by the route guidance information generation unit 202n. Then, by transmitting to the navigation device 100, the display screen is displayed on the display unit 114, and by sending the comparison result, which is voice data generated by the comparison unit 202r, to the navigation device 100, the comparison result is output as a voice. The data is output via the unit 118 (step SC-15). In addition, the comparison result output control unit 202s generates a display screen that displays the comparison result that is display data generated by the comparison unit 202r, and transmits the display screen to the navigation device 100, thereby displaying the display screen on the display unit 114. You may let them.

  Then, the control unit 202 of the navigation server 200 uses the current position information acquisition unit 202k of the navigation device 100 based on the current position information acquired based on the position information signal received from the navigation device 100 by the position information signal reception unit 202j. It is determined whether or not the current position of the user matches the destination included in the route search condition received by the route search condition receiving unit 202a in step SC-2 (step SC-16).

  Then, the control unit 202 of the navigation server 200 receives the current location of the user of the navigation device 100 based on the current location information acquired by the current location information acquisition unit 202k and the route search condition reception unit 202a in step SC-2. When it is determined that the destination included in the route search condition thus set matches (step SC-16: Yes), the process is terminated.

  On the other hand, the control unit 202 of the navigation server 200 receives the current location of the user of the navigation device 100 based on the current location information acquired by the current location information acquisition unit 202k and the route search condition reception unit 202a in step SC-2. If it is determined that the destination included in the route search condition thus set does not match (step SC-16: No), the process proceeds to step SC-10.

  Above, description of an example of the process of the navigation server 200 in 2nd Embodiment is finished.

[Other embodiments]
Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments within the scope of the technical idea described in the claims other than the above-described embodiments. It may be done.

  In addition, among the processes described in the embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method.

  In addition, the processing procedures, control procedures, specific names, information including parameters such as registration data and facility search conditions, screen examples, and database configurations shown in the literature and drawings, unless otherwise specified Can be changed arbitrarily.

  Further, regarding the navigation device 100 and the navigation server 200, each illustrated component is functionally conceptual and does not necessarily need to be physically configured as illustrated.

  For example, the processing functions provided in each device of the navigation device 100 and the navigation server 200, in particular, the processing functions performed by the control unit 102 and the control unit 202 are all or any part of the processing functions. (Central Processing Unit) and a program interpreted and executed by the CPU, or can be realized as hardware by wired logic. The program is recorded on a recording medium to be described later, and is mechanically read by the navigation device 100 and the navigation server 200 as necessary. In other words, the storage units 106 and 206, such as ROM or HD, record computer programs for giving various instructions to the CPU in cooperation with the OS. This computer program is executed by being loaded into the RAM, and constitutes a control unit in cooperation with the CPU.

  The computer program may be stored in the navigation apparatus 100 and an application program server connected to the navigation server 200 via an arbitrary network 300, and all or part of the computer program is stored as necessary. It can also be downloaded.

  The program according to the present invention can also be stored in a computer-readable recording medium. Here, the “recording medium” is an arbitrary “portable physical medium” such as a flexible disk, a magneto-optical disk, a ROM, an EPROM, an EEPROM, a CD-ROM, an MO, a DVD, a Blu-ray Disc, or the like. It includes a “communication medium” that holds a program in a short period of time, such as a communication line or a carrier wave when a program is transmitted via a network represented by a LAN, WAN, or the Internet.

  The “program” is a data processing method described in an arbitrary language or description method, and may be in any format such as source code or binary code. Note that the “program” is not necessarily limited to a single configuration, and functions are achieved in cooperation with a separate configuration such as a plurality of modules and libraries or a separate program represented by the OS. Including things. Note that a well-known configuration and procedure can be used for a specific configuration for reading a recording medium, a reading procedure, an installation procedure after reading, and the like in each device described in the embodiment.

  Various databases and the like stored in the storage unit 106 and the storage unit 206 (guidance route data file 106a, map data file 106b, guidance data file 106c, vehicle data file 106d, fuel consumption database 206a, road network database 206b, map database 206c, the route search information database 206d, the guidance database 206e, etc.) are storage means such as a memory device such as RAM and ROM, a fixed disk device such as HD and SSD, a flexible disk and an optical disk. Stores various programs, tables, databases, web page files, etc. to be used.

  Further, the navigation device 100 and the navigation server 200 connect information processing apparatuses such as known personal computers and workstations, and software (including programs, data, etc.) that allows the information processing apparatus to implement the method of the present invention. It may be realized by mounting.

  Furthermore, the specific form of distribution / integration of the devices is not limited to that shown in the figure, and all or a part of them may be functional or physical in arbitrary units according to various additions or according to functional loads. Can be distributed and integrated.

  As described above in detail, according to the present invention, the navigation system and the navigation system that promote energy saving by stimulating the user's willingness to eco-drive by virtually competing with the other vehicle for the fuel consumption in the traveling section of the host vehicle. Since an apparatus, a navigation server, and a fuel consumption comparison method can be provided, it is extremely useful in various fields such as an information device that supports navigation and an information processing field.

100 Navigation device 102 Control unit
102a Current position information acquisition unit
102b Route search condition transmitter
102c notice data receiver
102d notice data output part
102e Route guide
102f Fuel consumption calculation part
102g Fuel consumption transmitter
102h Fuel consumption related data receiver
102i comparator
102j Comparison result output unit 104 Communication control interface unit 106 Storage unit
106a Guide route data file
106b Map data file
106c Guidance data file
106d Vehicle data file 108 Input / output control interface unit 112 Position acquisition unit 114 Display unit 116 Input unit 118 Audio output unit 200 Navigation server 202 Control unit
202a Route search condition receiver
202b Route search unit
202c road section judgment part
202d notice data generation unit
202e notice data transmission unit
202f Fuel consumption receiver
202g Fuel consumption storage
202h Fuel consumption related data generator
202i Fuel consumption related data transmitter
202j Position information signal receiver
202k Current position information acquisition unit
202m notice data output controller
202n Route guidance information generator
202p Route guidance control unit
202q Fuel consumption calculator
202r comparator
202s comparison result output control unit 204 communication control interface unit 206 storage unit
206a Fuel consumption database
206b Road network database
206c Map database
206d Route search information database
206e Guide database 300 Network 500 Position transmitter

Claims (17)

A navigation system in which a navigation server including at least a control unit and a storage unit, and a navigation device including at least an output unit, a control unit, and a storage unit are communicably connected,
The storage unit of the navigation server includes:
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
The control unit of the navigation server is
Fuel consumption receiving means for receiving the road section transmitted from the navigation device, the vehicle data, and the fuel consumption in the road section;
Fuel consumption storage means for storing the road section received by the fuel consumption reception means, the vehicle data, and the fuel consumption in the road section in the fuel consumption storage means;
Fuel consumption related data generating means for generating fuel consumption related data for the road section received by the fuel consumption receiving means based on the vehicle data stored in the fuel consumption storage means and the fuel consumption in the road section;
Fuel consumption related data transmitting means for transmitting the fuel consumption related data generated by the fuel consumption related data generating means to the navigation device;
With
The storage unit of the navigation device includes:
Vehicle data storage means for storing the vehicle data of the vehicle on which the navigation device is mounted;
With
The control unit of the navigation device includes:
Fuel consumption calculating means for calculating the fuel consumption of the vehicle in the road section;
Fuel consumption transmission means for transmitting the road section, the vehicle data, and the fuel consumption in the road section to the navigation server;
Fuel consumption related data receiving means for receiving the fuel consumption related data transmitted from the navigation server;
A comparison means for comparing the fuel consumption related data received by the fuel consumption related data receiving means with the fuel consumption calculated by the fuel consumption calculation means, and generating a comparison result based on the comparison;
Comparison result output means for outputting the comparison result generated by the comparison means via the output unit;
A navigation system characterized by comprising: The navigation system according to claim 1,
The above fuel consumption related data is
The navigation system according to claim 1, wherein the vehicle data is average fuel consumption in the road section of the same or different vehicle. The navigation system according to claim 1,
The above fuel consumption related data is
The navigation system according to claim 1, wherein the vehicle data is the highest fuel consumption in the road section of the vehicle with the same or different vehicle data. The navigation system according to any one of claims 1 to 3,
The output unit of the navigation device includes a display unit,
The above comparison results are
The travel position displayed based on the fuel efficiency related data received by the fuel efficiency related data receiving means is compared with the travel position of the vehicle displayed based on the fuel efficiency calculated by the fuel efficiency calculation means. A navigation system characterized by the display data shown. The navigation system according to any one of claims 1 to 3,
The output unit of the navigation device includes a display unit,
The above comparison results are
A navigation system, characterized in that the display data shows the fuel consumption related data received by the fuel consumption related data receiving means and the fuel consumption calculated by the fuel consumption calculating means in an identifiable manner. The navigation system according to any one of claims 1 to 5,
The output unit of the navigation device includes an audio output unit,
The above comparison results are
A navigation system characterized by being audio data. The navigation system according to any one of claims 1 to 6,
The above comparison results are
A navigation system, characterized in that it is information relating to a difference in fuel price based on a comparison between the fuel consumption related data received by the fuel consumption related data receiving means and the fuel consumption calculated by the fuel consumption calculation means. The navigation system according to any one of claims 1 to 7,
The road section above
A navigation system characterized by being a section between expressway interchanges or a section specified by a road link in road network data. The navigation system according to any one of claims 1 to 8,
The storage unit of the navigation server
Road network data storage means for storing road network data;
Further comprising
The control unit of the navigation server
Using the road network data stored in the road network data storage means, the guide route from the departure place to the destination that satisfies the route search condition including at least the departure place and the destination transmitted from the navigation device is used. Route search means for searching and generating guide route data;
Road segment determination means for determining whether or not the road route stored in the fuel consumption storage means is included in the guide route searched by the route search means;
When the road section determining means determines that the road section is included in the guidance route, notice data generating means for generating notice data for notifying that the road section is included;
Notice data transmitting means for sending the notice data generated by the notice data generating means to the navigation device;
Further comprising
The control unit of the navigation device
Notice data receiving means for receiving the notice data transmitted from the navigation server;
Notice data output means for outputting the notice data received by the notice data receiving means via the output unit;
A navigation system, further comprising: A navigation device including at least an output unit, a control unit, and a storage unit, which is communicably connected to a navigation server including at least a storage unit,
The storage unit
Vehicle data storage means for storing vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a model year of the vehicle on which the navigation device is mounted;
With
The control unit
Fuel consumption calculating means for calculating the fuel consumption of the vehicle in the road section;
Fuel efficiency transmitting means for transmitting the road section, the vehicle data, and the fuel efficiency calculated by the fuel efficiency calculating means to the navigation server;
The road section generated based on the vehicle data of the vehicle stored in the storage unit of the navigation server for each road section and the fuel consumption of the vehicle in the road section transmitted from the navigation server. Fuel consumption related data receiving means for receiving fuel consumption related data;
Comparing means for comparing the fuel consumption related data received by the fuel consumption related data receiving means with the fuel consumption calculated by the fuel consumption calculating means, and generating a comparison result based on the comparison;
Comparison result output means for outputting the comparison result generated by the comparison means via the output unit;
A navigation device comprising: A navigation server including at least a control unit and a storage unit, which is communicably connected to a navigation device including at least an output unit and a control unit,
The storage unit
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
The control unit
Fuel consumption receiving means for receiving the road section transmitted from the navigation device, the vehicle data, and the fuel consumption in the road section;
Fuel consumption storage means for storing the road section received by the fuel consumption reception means, the vehicle data, and the fuel consumption in the road section in the fuel consumption storage means;
A navigation server comprising: The navigation server according to claim 11, wherein
The control unit
Fuel consumption related data generating means for generating fuel consumption related data for the road section received by the fuel consumption receiving means based on the vehicle data stored in the fuel consumption storage means and the fuel consumption in the road section;
Fuel consumption related data transmitting means for transmitting the fuel consumption related data generated by the fuel consumption related data generating means to the navigation device;
A navigation server, further comprising: A navigation server including at least a control unit and a storage unit, which is communicably connected to a navigation device including at least an output unit,
The storage unit
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
The control unit
Fuel consumption calculating means for calculating the fuel consumption of the vehicle in the road section;
Fuel consumption storage means for storing in the fuel consumption storage means the fuel consumption in the road section calculated by the road section, the vehicle data, and the fuel consumption calculation means;
For the road section, fuel consumption related data generating means for generating fuel consumption related data based on the vehicle data stored in the fuel consumption storage means and the fuel consumption in the road section;
A comparison unit that compares the fuel consumption related data generated by the fuel consumption related data generation unit and the fuel consumption calculated by the fuel consumption calculation unit, and generates a comparison result based on the comparison;
Comparison result output control means for outputting the comparison result generated by the comparison means to the navigation device, and outputting the result via the output unit of the navigation device;
A navigation server comprising: A fuel efficiency comparison method executed in a navigation system in which a navigation server including at least a control unit and a storage unit, and a navigation device including at least an output unit, a control unit, and a storage unit are communicably connected,
The storage unit of the navigation server includes:
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
The storage unit of the navigation device includes:
Vehicle data storage means for storing the vehicle data of the vehicle on which the navigation device is mounted;
With
A fuel efficiency calculation step for calculating the fuel efficiency of the vehicle in the road section, which is executed in the control unit of the navigation device;
A fuel consumption transmission step of transmitting the road section, the vehicle data, and the fuel consumption in the road section to the navigation server, which is executed in the control unit of the navigation device;
A fuel consumption reception step for receiving the road section transmitted from the navigation device, the vehicle data, and the fuel consumption in the road section, which is executed in the control unit of the navigation server;
A fuel consumption storage step of storing in the fuel consumption storage means the road section, vehicle data, and fuel consumption in the road section received in the fuel consumption reception step, executed in the control unit of the navigation server;
Based on the vehicle data stored in the fuel consumption storage means and the fuel consumption in the road section for the road section received in the fuel consumption reception step executed in the control unit of the navigation server. A fuel consumption related data generation step for generating fuel consumption related data;
A fuel consumption related data transmitting step for transmitting the fuel consumption related data generated in the fuel consumption related data generating step, which is executed in the control unit of the navigation server, to the navigation device;
A fuel consumption related data receiving step for receiving the fuel consumption related data transmitted from the navigation server, executed in the control unit of the navigation device;
The fuel consumption related data received in the fuel consumption related data receiving step executed in the control unit of the navigation device is compared with the fuel consumption calculated in the fuel consumption calculation step, and based on the comparison A comparison step for generating a comparison result;
A comparison result output step for outputting the comparison result generated in the comparison step, which is executed in the control unit of the navigation device, via the output unit;
A fuel consumption comparison method comprising: A fuel efficiency comparison method executed in a navigation device including at least an output unit, a control unit, and a storage unit, which is communicably connected to a navigation server including at least a storage unit,
The storage unit
Vehicle data storage means for storing vehicle data including at least one of a vehicle type, a vehicle identification code, a displacement, or a model year of the vehicle on which the navigation device is mounted;
With
Executed in the control unit,
A fuel consumption calculating step for calculating the fuel consumption of the vehicle in a road section;
A fuel consumption transmission step of transmitting the road section, the vehicle data, and the fuel consumption in the road section to the navigation server;
The road section generated based on the vehicle data of the vehicle stored in the storage unit of the navigation server for each road section and the fuel consumption of the vehicle in the road section transmitted from the navigation server. Fuel consumption related data receiving step for receiving fuel consumption related data;
A comparison step of comparing the fuel consumption related data received in the fuel consumption related data receiving step with the fuel consumption calculated in the fuel consumption calculation step, and generating a comparison result based on the comparison;
A comparison result output step for outputting the comparison result generated in the comparison step via the output unit;
A fuel consumption comparison method comprising: A fuel efficiency comparison method that is executed in a navigation server that includes at least a control unit and a storage unit, and is communicably connected to a navigation device that includes at least an output unit and a control unit,
The storage unit
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
Executed in the control unit,
A fuel consumption receiving step for receiving the road section transmitted from the navigation device, the vehicle data, and the fuel consumption in the road section;
A fuel consumption storage step of storing the road section, the vehicle data, and the fuel consumption in the road section received in the fuel consumption reception step in the fuel consumption storage means;
A fuel consumption comparison method comprising: A fuel efficiency comparison method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least an output unit,
The storage unit
For each road section, the fuel consumption is stored in association with the vehicle data including at least one of the vehicle type, the vehicle identification code, the displacement, or the year and the fuel consumption of the vehicle in the road section. Storage means,
With
Executed in the control unit,
A fuel consumption calculation step for calculating the fuel consumption of the vehicle in the road section;
A fuel consumption storage step of storing in the fuel consumption storage means the fuel consumption in the road section calculated in the road section, the vehicle data, and the fuel consumption calculation step;
For the road section, a fuel consumption related data generation step for generating fuel consumption related data based on the vehicle data stored in the fuel consumption storage means and the fuel consumption in the road section;
A comparison step of comparing the fuel consumption related data generated in the fuel consumption related data generation step with the fuel consumption calculated in the fuel consumption calculation step, and generating a comparison result based on the comparison;
A comparison result output control step in which the comparison result generated in the comparison step is transmitted to the navigation device to be output via the output unit of the navigation device;
A fuel consumption comparison method comprising:

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