JP5765008B2 - Fuel consumption data storage and utilization device, method, and program - Google Patents

Description

  The present invention relates to an apparatus, a method, and a program for accumulating and using data including fuel consumption information of a moving body.

In recent years, various efforts have been made to reduce environmental pollution such as CO ₂ and NOX. Against this background, the response to global environmental problems by the automobile industry has become a social mission as well as efforts to improve automobile safety. However, there are limits to the improvement of global environmental problems through efforts by the automobile industry alone. For this reason, each driver is required to appropriately select a vehicle driving route adapted to environmental problems. In addition, by selecting an appropriate route, the fuel consumption of the vehicle is reduced, leading to saving of fuel costs for the driver himself. Therefore, it is very important that the navigation system mounted on the automobile presents a travel route that leads to a reduction in energy consumption.

JP 2010-197211 A

  In the navigation system as described above, a server device for presenting a route with less fuel consumption to the driver and a navigation technology combined with this server device are known (Patent Document 1). This server device has means for recording fuel consumption according to various types of vehicles. And the input of the departure place and the destination is received, and a plurality of routes are searched. Fuel consumption is calculated for the searched route according to information indicating the type of vehicle on which the driver is riding. The server device provides a route on which the calculated fuel consumption is minimized to the navigation system on which the driver is riding. This server device calculates the fuel consumption for each type of vehicle. For this reason, the server device stores a collected fuel consumption table.

  However, this server device requires an enormous storage capacity in order to store data collected from the navigation device of each vehicle in the collected fuel consumption table for each vehicle identifier. The specific information collected by the server device includes road link information, vehicle identifiers, vehicle types, fuel types, fuel consumption, data collection time, and the like, and the amount of information is enormous.

  The present apparatus has been made in view of the above circumstances, and an object thereof is to provide an improved method for efficiently accumulating and using data including fuel consumption of a moving object.

  According to one aspect of the present apparatus, a storage unit that stores a fuel consumption relationship between each of a plurality of moving bodies and a virtual model moving body in association with identification information that identifies each of the plurality of moving bodies; Using the relationship of the fuel consumption stored in the storage unit corresponding to the received identification information, the receiving unit for receiving information including the identification information, the position, and the fuel consumption of the mobile object. A conversion unit that converts fuel consumption into fuel consumption of the model mobile body, a storage unit that stores one or more converted fuel consumptions of the model mobile body in association with road identification information specified from the position, and the road There is provided an apparatus comprising: a representative fuel consumption specifying unit that specifies a representative fuel consumption representing the fuel consumption of the model moving body from the fuel consumption of one or more of the model moving bodies for each specific information.

  The disclosed apparatus, method, and software have an effect of reducing the amount of data including fuel consumption information to be accumulated.

It is a figure which shows the system configuration | structure as one Embodiment of this invention. It is a figure which shows the functional structure of the center server of this embodiment. It is a figure which shows the hardware constitutions of the center server of this embodiment. It is a figure which shows the functional structure of the navigation system mounted in the vehicle of this embodiment. It is a figure which shows the hardware constitutions of the navigation system mounted in the vehicle of this embodiment. It is a figure which shows the method of determining the link of a road from the vehicle position of this embodiment. It is a figure which shows the method for calculating the fuel consumption of the vehicle of this embodiment. It is a figure which shows the correspondence of the conversion factor to the fuel consumption of the model vehicle of this embodiment. It is a figure which shows the content of the storage part of this embodiment, and the typical fuel consumption of a model vehicle. It is a figure which shows the flowchart which concerns on the method of this embodiment.

  In this specification, the two terms “vehicle” and “moving body” are used. Vehicle is a general term for vehicles with wheels. A moving body is a general term for objects that can move, and is a concept that encompasses a vehicle. In addition to the vehicle, the movable body includes a movable machine such as a robot.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, a vehicle such as an automobile will be described as the moving body. However, the present invention is intended for the moving body and is not limited to the vehicle.

  The navigation system usually displays the current location on a map using satellites, etc., and has the function to search for and present the shortest distance route from the departure point to the destination and the shortest route. Yes. For this reason, the navigation system must use at least map information. For example, it is necessary to have information on the road network such as how the intersections are connected to each other and what kind of curve the road is drawing. One piece of information indicating such road connections is “link information”. Link information is one element of a data set for specifying a road. For example, the link information refers to a straight line that connects two points identified by latitude and longitude by distinguishing between uplink and downlink directions. A road may be defined as a collection of one or more links. In general, a road with a long straight line can be represented by a long link. On the other hand, a curved road is composed of a relatively short link. A road with an intersection or a branch point has a plurality of links connected at the intersection or branch point. This link information is an example of road specifying information for specifying a road.

  The fuel consumption means the fuel consumption per unit moving distance, that is, the fuel consumption rate.

  FIG. 1 shows a system 100 as one embodiment of the present invention. As shown in FIG. 1, the system 100 includes a network 110 and a center server 130. Vehicles 120 to 123 as an example are connected to the network 110 via wireless lines 150 to 152, respectively. The center server is connected to the network 110 via a wired line or a wireless line 140. With this configuration, the center server 130 and a navigation system (not shown) mounted on the vehicle are connected, and information can be exchanged. In addition, although one center server is shown, a plurality may exist and share functions. The network 110 is not limited to one, and may be an environment where a plurality of networks can be used. The center server may be connected to another system such as a customer system (not shown) and exchange information with each other.

  In the following description of the embodiments, the components in the center server and the components of the navigation system mounted on each vehicle will be described separately. However, components in the center server may exist in the navigation system. Moreover, the component demonstrated as mounted in a navigation system may exist in a center server. That is, it should be noted that a person skilled in the art can appropriately select whether the function of each constituent element is realized in either the center server or the in-vehicle navigation system by technological progress or the like. Therefore, the vehicle-mounted navigation system may hold all the configuration of the center server.

  Needless to say, the navigation system does not necessarily have to be installed in a vehicle, and may be implemented in a mobile device such as a mobile phone, a laptop computer, a desktop computer, a tablet computer, or the like.

  Similarly, the center server does not need to be configured by a server computer, and may be a mobile device such as a mobile phone, a personal computer, a laptop computer, a tablet computer, an in-vehicle navigation system, or the like.

  Therefore, a device that implements each embodiment may appropriately select a device that can handle the amount of data to be stored, the amount of traffic to be processed, and the like according to technological progress.

  FIG. 2A shows a functional configuration of the center server 130 as an embodiment of the present invention. The center server includes a transmission / reception unit 201, a storage unit 203, a storage unit 205, a model vehicle fuel consumption conversion unit 207, a link specification unit 209, a representative fuel consumption specification unit 210 including an average calculation unit 211, a route search unit 213, and fuel consumption by route. You may have the calculation part 215, the route information presentation part 217, the input part 220, and the output part 230. FIG. Hereinafter, although an outline is described about these components, the detail is mentioned later.

  In FIG. 2A, the transmission / reception unit 201 is connected to the network 110 via a line 140. The transmission / reception unit 201 is an example of a reception unit and a distribution unit. The transmission / reception unit 201 can receive measurement data including the fuel consumption of the vehicle and the position of the vehicle together with the measurement time from each navigation system via the network 110. The transmission / reception unit 201 receives request information such as vehicle identification information, a departure place, and a destination sent from the request navigation system. Based on this request information, the transmission / reception unit 201 may send route candidates back to the request navigation system, including the route with the smallest fuel consumption. Further, the transmission / reception unit 201 may distribute data of fuel consumption (representative fuel consumption) of a model vehicle corresponding to link information described later to each navigation system. In this case, the navigation system may stand alone and specify a route with the minimum fuel consumption by using the fuel consumption data of the delivered model vehicle. In the present specification, the “model vehicle” means a virtual model used on the server for the vehicle.

  The storage unit 203 stores various data in the server system. For example, the storage unit 203 may store a conversion coefficient for converting the fuel consumption of the model vehicle in association with identification information for identifying the vehicle. The conversion coefficient is an example of an index indicating the relationship between the fuel consumption of the vehicle and the fuel consumption of the model vehicle. Moreover, when there are a plurality of model vehicles, the identification information of the model vehicles may be stored together. Details of the storage contents of the storage unit 203 will be described later with reference to FIG.

  The model vehicle fuel consumption conversion unit 207 obtains the fuel consumption of the vehicle from at least two pieces of data among the plurality of measurement data related to the fuel consumption amount and the vehicle position sent from the navigation system. Using the corresponding conversion factor, the fuel consumption of the vehicle is converted to the fuel consumption of the model vehicle.

  The link specifying unit 209 may specify the link of the road closest to the vehicle position. An example of a method for specifying a link will be described later with reference to FIG.

  The accumulation unit 205 may accumulate the fuel consumption of the model vehicle corresponding to the link. Details of an example of data stored in the storage unit 205 will be described later with reference to FIG.

  The representative fuel consumption specification unit 210 may include an average calculation unit 211. The average calculation unit 211 calculates the representative fuel consumption by averaging the fuel consumption of the accumulated model vehicle for each link. By averaging, it is possible to eliminate variations in fuel consumption of model vehicles based on actual measurement values. The average can be calculated using a simple average, a moving average, or the like. The representative fuel consumption specification unit 210 may adopt the median value of the fuel consumption of a plurality of model vehicles instead of the average. Further, when specifying the representative fuel consumption, averaging may be performed in consideration of the default value accumulated in advance in the accumulation unit. Further, the averaging may be performed on the fuel consumption of the model vehicle accumulated during a predetermined period. For example, the fuel economy of the model vehicle accumulated in the last month can be targeted. Affected by seasonal changes in weather (snow, rain, etc.), it may affect fuel efficiency even on the same road. It is also possible to adapt to such seasonal changes in road conditions by setting a predetermined period and specifying the representative fuel consumption of the target model vehicle. Further, for example, a plurality of model vehicles such as ordinary vehicles, hybrid vehicles, and electric vehicles may be defined, and the representative fuel consumption may be specified for each model vehicle. For example, on a downhill road, a hybrid vehicle generates power (regeneration), and thus has a different fuel consumption than a normal vehicle. For example, the representative fuel consumption of an appropriate model vehicle can be specified by uniquely determining the model vehicle for a specific vehicle. Thus, those skilled in the art will appreciate that different model vehicles may have different routes with the least fuel consumption.

  The route search unit 213 can search for one or more routes based on information on the designated departure place and destination.

  The route-specific fuel consumption calculation unit 215 uses a plurality of links constituting the route and a representative fuel consumption calculated corresponding to the link for each of the plurality of routes searched by the route search unit 213. Next, the fuel consumption is calculated.

  The route information presentation unit 217 may present a route corresponding to the minimum fuel consumption calculated by the route-specific fuel consumption calculation unit 215. The presented route is transmitted to the requesting navigation system via the transmission / reception unit 201.

  FIG. 2B shows the hardware configuration of the center server of this embodiment. The center server includes a CPU 241, an HDD 242, a RAM 243, a ROM 245, and an interface 247, which are connected by a bus 249. The interface 247 may be connected to an input unit 220 such as a keyboard and a mouse (not shown) and an output unit 230 such as a display device and a printer (not shown). Each functional unit illustrated in FIG. 2A may be virtually realized by the CPU 241 reading and executing an appropriate program.

  FIG. 3A shows a functional configuration of a navigation system 300 mounted on a vehicle as one embodiment. The navigation system includes a transmission / reception unit 301, an external storage drive 303, an input / output unit 330, an energy consumption sensor 305, an engine control device 340, an acquired energy sensor 307, a GPS receiver 308 connected to an antenna 309, a speed / acceleration sensor 311, You may have the direction sensor 313, the gyro sensor 315, and the vehicle identification information storage part 316.

  The transmission / reception unit 301 is connected to the center server 130 from the wireless line 150 via the network 110. The transmission / reception unit 301 may transmit measurement data including the fuel consumption of the vehicle and the position of the vehicle to the center server 130 via the network 110 together with the measurement time. In addition, the transmission / reception unit 301 may transmit request information such as vehicle information, a departure place, and a destination. The transmission / reception unit 301 may receive a route candidate including a route that minimizes fuel consumption from the center server. Further, the transmission / reception unit 301 may receive, from the center server 130, representative fuel consumption data of a model vehicle corresponding to link information described later. If the representative fuel consumption data of the model vehicle is received, the navigation system is stand-alone and the route with the minimum fuel consumption can be specified.

  The external storage drive 303 has a function for reading and writing an external storage medium such as a DVD or a CD-ROM. The external storage drive 303 may be capable of reading and writing other portable storage media such as an SD memory. Further, a storage medium such as a hard disk may be provided.

  The input / output unit 330 may include a display panel 331 that displays a map and a route, an audio output 333, a touch panel 335, an audio input 337, a switch 339, and the like. The input / output unit can also be used when the user inputs a departure point, a destination, a route selection, and the like. It is also used to display a route with the minimum fuel consumption.

  The energy consumption sensor 305 measures the energy consumption of the vehicle, and measures liquid fuel consumption if it is liquid fuel such as gasoline, and electric power if it is electricity.

  Further, the energy consumption sensor 307 may be replaced with a function for calculating the energy consumption amount based on a value calculated based on the fuel injection amount by the engine control device 340, for example.

  The acquired energy sensor 307 may be installed in a hybrid vehicle or an electric vehicle. The acquired energy sensor 307 measures the amount of energy acquired by generating electricity when the vehicle is decelerating or traveling downhill. The acquired energy sensor 307 is not necessary for a vehicle that does not acquire energy during traveling.

  The navigation system calculates the difference between the energy consumption amount and the energy acquisition amount, calculates the fuel consumption amount at the time of measurement, and transmits the fuel consumption amount to the center server 130 via the transmission / reception unit 301.

  The GPS receiver 308 and the antenna 309 measure the position of the vehicle.

  The speed / acceleration sensor 311, the direction sensor 313, and the gyro sensor 315 may be used together with the GPS receiver 308 in order to know the position and moving direction of the vehicle.

  The vehicle identification information storage unit 306 stores information for identifying the vehicle on which the navigation system is mounted. This vehicle identification information includes manufacturer, displacement, engine type (gasoline, diesel, etc.), power type (usually, hybrid, electricity, etc.), and model type. Data stored in the vehicle identification information storage unit 306 is sent to the center server via the transmission / reception unit 301. Note that the navigation system may be implemented in a device that can be separated from the vehicle, such as a mobile terminal, a tablet computer, or a laptop PC. In this case, the user may input data to be stored in the vehicle identification information storage unit 306. Alternatively, data suitable for the vehicle may be downloaded by a user's selection or automatically via a network using, for example, a web service.

  FIG. 3B shows a hardware configuration of the navigation system mounted on the vehicle of the present embodiment. The navigation system includes a CPU 321, a drive 322 that can read and write a CD-ROM, a RAM 323, a ROM 325, and an interface 327, which are connected by a bus 329. Various devices such as various sensors, input / output devices, display devices, and communication devices (not shown) may be connected to the interface 327. Each functional unit illustrated in FIG. 3A may be virtually realized by the CPU 321 reading and executing an appropriate program.

  FIG. 4 is a diagram illustrating a method for determining a road link from a vehicle position according to an embodiment. From the navigation system mounted on the vehicle, the position information of the vehicle is transmitted to the center server every moment. The center server performs processing for associating the received vehicle position information with the links constituting the road of the map. Note that this information is not limited to link information as long as it is information (road identification information) that can identify a fragment of a road.

FIG. 4 shows a road network 401 as an example. The road network 401 has intersections K _1, K ₂ and K ₅ . The road network 401 includes links 1 to 9. For example, the link 3 is a straight line connecting the start point _{K 2} and end _{K 3.} By identifying the latitude and longitude of the starting point K ₂ and end K _3, the position of the link 3 is identified. The link 3 is treated by being distinguished in the up direction a and the down direction b. A map composed of such link information can be used.

Next, an example of a method for specifying a link from vehicle position information will be described. Assume the position information of the measured vehicle is the point P _1. In general, in acquiring position information using GPS or the like, a certain error is included. Also in FIG. 4, the point P _1, which is measured as the vehicle position does not exist on the road. In this case, the perpendicular lines P ₁ P ₂ and P ₁ P ₃ are lowered from the point P ₁ to the nearby road. The length of each perpendicular is x and y. The link corresponding to the shorter perpendicular is selected. And it is judged that the vehicle exists in the intersection of a link and a perpendicular. In this case, since a y> x, it is determined that the vehicle to a point P ₂ of the link 2 is present. Further, based on the information on the moving direction, it is determined whether the vehicle is moving in the upward direction or the downward direction in the link 2. The up direction and the down direction may be defined in advance.

  Further, the vehicle position information may be an intermediate point calculated geometrically based on a plurality of vehicle position information.

FIG. 5 is a diagram illustrating a method for calculating the fuel consumption of the vehicle in the processing of the conversion unit that converts the fuel consumption of the model vehicle as an example. First, the vehicle is in P ₄ from P _2, illustrating a case where the movement through the intersection K _1. Then, a method for calculating the fuel consumption of the vehicle corresponding to the link 2 and the link 7 will be described. Here, it is assumed that the fuel consumption of the vehicle is measured as W ₁ and W ₂ when the vehicle is at P ₂ and P ₄ , respectively. Further, the distances of the paths K ₂ P ₂ , P ₂ K ₁ , K ₁ P ₄ , and P ₄ K ₅ are m ₁ , m ₂ , m ₃ , and m ₄ , respectively.

At this time, when the value of the most recent moment of fuel is provided from the vehicle, the fuel consumption in the P ₂ link 2, to be obtained as Q _P2, may be the fuel consumption corresponding to the value in the link 2. Then, fuel consumption _{W Link2} in the link 2 _is calculated as follows using _{Q P2.}
W _Link2 = (m ₁ + m ₂ ) × Q _P2
Similarly, fuel consumption _{W Link7} of the vehicle in the link 7 is calculated as follows using the fuel consumption _{Q P7} acquired at _{P 7.}
W _Link7 = (m ₃ + m ₄ ) × Q _P7
When the respective fuel consumptions W ₁ and W ₂ when the vehicle is present at P ₂ and P ₄ are used, the fuel consumption Q _P2 of the vehicle corresponding to the link _P2 and the fuel consumption Q _{P7 of} the vehicle corresponding to the link P7 are used. Is calculated as follows.
Q _P2 = Q _P7 = (W ₂ −W ₁ ) / (m ₂ + m ₃ )
Further, when the latest fuel remaining amounts L ₁ and L ₂ when the vehicle exists at P ₂ and P ₄ are used as the fuel consumption on the vehicle side, they are calculated as follows.
Q _P2 = Q _P7 = (L ₁ −L ₂ ) / (m ₂ + m ₃ )
As described _above, the value of _{Q P2} and _{Q P7} is the same. This is because the fuel consumption (remaining fuel amount) is measured only at one vehicle and at _two points P ₂ and P ₄ . Since the link 7 is m ₃ <m ₄ , the fuel efficiency of the link 7 calculated based on data measured on the route P ₄ K ₅ after that may be employed. Generally, when two or more fuel mileages are calculated on the same link, the fuel mileage calculated based on the longest distance among them may be adopted as the fuel mileage corresponding to the link. Alternatively, an average or median of two or more calculated fuel consumptions may be calculated and employed as the fuel consumption corresponding to the link.

  Note that when associating fuel efficiency with a link, information obtained by multiplying the fuel efficiency by the distance of the link (that is, fuel consumption of the link) may be associated with the link and used for subsequent processing. If this process is performed in advance, in order to calculate the fuel consumption of the route, the fuel consumption of the links constituting the route may be simply added. In addition, since the distance of each link is not a value which changes, it cannot be overemphasized that the information of the fuel consumption of a link is contained in the information of the fuel consumption of a link.

  FIG. 6 shows vehicle identification information for identifying a vehicle, model vehicle identification information for identifying a model vehicle, and a conversion factor to the fuel efficiency of a model vehicle having specific model vehicle identification information for the fuel efficiency measured for each vehicle. Table 600 is shown.

  The vehicle identification information 601 may include a vehicle manufacturer 612, a displacement 613, an engine type 615, a model rod 617, and a power type 617. The vehicle identification information 601 specifies model vehicle identification information 620 and a conversion coefficient 630 of the model vehicle. For example, no. The vehicle No. 3 is manufacturer A, the displacement is in the range of 2000 to 3000 cc, the engine type is gasoline, the type is Type, and the power type is normal. A vehicle that matches the vehicle identification information corresponds to a model vehicle having “1” as the model vehicle identification information. Then, by multiplying the fuel efficiency of the vehicle by a conversion factor of 0.9, the fuel efficiency of the model vehicle having “1” as model vehicle identification information can be converted. No. 12 to No. It can be seen that the vehicle belonging to the 19 vehicle identification information is a hybrid vehicle and has a model vehicle identification number “2”. A model vehicle having “1” as model vehicle identification information may be referred to as a model vehicle 1 in some cases.

  As described above, the fuel consumption of the vehicle is obtained from the vehicle identification information, the position, and the fuel consumption information for each link by the method described in FIG. 5 and FIG. 6, and the vehicle fuel consumption is converted into the fuel consumption of the model vehicle. be able to.

  Each conversion factor can be calculated in advance for each vehicle based on the data on fuel consumption that is measured by each manufacturer on the same basis and published. In the embodiment shown in FIG. The vehicles having the vehicle identification information of 2 and 7 match the model vehicle, and the conversion coefficient is “1.0”. The assumption of the model vehicle may be selected from, for example, relatively popular vehicles.

  Further, there are cases where the fuel consumption pattern differs greatly between a vehicle having a regeneration function (power generation function) and a vehicle having no regeneration function due to the presence of a slope, etc., even on the same route. Therefore, for example, as shown in FIG. 6, different model vehicle identification information may be set for ordinary vehicles, hybrid vehicles, and electric vehicles. As will be described later, a different representative fuel efficiency is specified for each model vehicle identification information. This makes it possible to more appropriately identify the route that minimizes the fuel consumption. Note that how to assign the model vehicle identification information is not limited to the above-described embodiment. For example, a vehicle with a very large displacement may be associated with another model vehicle. Also, the model vehicle may be different between a manual vehicle and an automatic vehicle.

  FIG. 7 shows a table 701 showing a part of the fuel consumption related to the model vehicle 1 accumulated in the accumulation unit 205 as one embodiment. Table 702 shows representative fuel consumption of the model vehicle 1 specified from the fuel consumption of the model vehicle 1.

  As shown in Table 701, the converted fuel consumption of the model vehicle 1 is sequentially stored every hour corresponding to each link. The current time is 16:00, and in the past entries (Nos. 1 to 21), the fuel consumption of the model vehicle 1 converted into the model vehicle fuel consumption acquired in each time zone is accumulated. . In addition, since the measurement value was not obtained in the entry indicated by shading, the value “25.0” which is the default value is stored.

  In addition, a default value 25.0 is stored in advance in entries corresponding to the future (Nos. 22 to 26). In some cases, measurement is performed a plurality of times with the same entry. In this case, the same entry may be simply overwritten. Or you may accumulate | store the average value of the fuel consumption which should be recorded on the same entry.

  Table 702 stores the representative fuel consumption of the model vehicle 1. In the case of the embodiment of FIG. 7, the average value of the latest 10 entries (Nos. 12 to 21) is calculated for each link and used as the representative fuel consumption of the model vehicle 1. In this case, data obtained in a certain period is a target for average calculation. Further, the number of objects for calculating the average is not limited to ten. Note that the median entry value may be selected instead of the average value.

  Also, the default values in table 701 may not be used. In this case, for example, the fuel consumption of the model vehicle converted first may be stored for each link in the storage unit. In this case, when calculating the representative fuel consumption, an average may be calculated using a predetermined number of entries. If the number of entries is less than the predetermined number, the average may be calculated from the obtained number. If there is no entry, a predetermined numerical value may be adopted.

  In the embodiment of FIG. 7, the average of a relatively short time zone is calculated. However, in order to reflect the seasonal fluctuation of the road, for example, an average value of entries for two months may be adopted.

  The storage unit 205 can save storage capacity by overwriting new data at the storage position of data that is no longer needed. In addition, by storing the fuel consumption converted into the model vehicle in this way, data management is simplified rather than storing data for each individual vehicle or each vehicle type. For example, if unnecessary data is overwritten sequentially, The storage capacity of the storage unit can be dramatically reduced.

  In addition, by converting to the fuel consumption of the model vehicle, the parameter can be increased when calculating the average as compared with the case of taking the average for each individual vehicle or vehicle type, and stable fuel consumption Information can be obtained.

  FIG. 8 shows a flowchart according to a method of an embodiment. The two processes of start (1) and start (2) are processed in parallel by time division by multitask processing.

  The flow of start (1) in FIG. 8 will be described below.

  First, in step 811, the center server receives information including identification information for specifying the vehicle, position information, and fuel consumption from the traveling vehicle. The fuel consumption can be calculated from the distance traveled by the vehicle and the fuel consumption during that time by receiving the vehicle position information and the fuel consumption at least twice.

  In step 813, the fuel consumption of the model vehicle is converted based on the vehicle identification information using the conversion table shown in FIG. 6 stored in the storage unit 203.

  In step 815, the converted fuel consumption of the model vehicle is stored in the storage unit 205 in association with the road link information calculated from the vehicle position. Examples stored are shown in table 701 of FIG.

  In step 815, for each link, the fuel consumption of the model vehicle is averaged, and the representative fuel consumption is calculated and stored. An example of this is shown in table 702 of FIG. The modified example of the calculation of the representative fuel consumption is as already described in FIG.

  The above processing returns to step 811 and is repeated. By repeating this, the stable representative fuel consumption for each model vehicle is stored in the center server.

  The flow of start (2) in FIG. 8 will be described below. This process is a process flow of a method of using the representative fuel consumption obtained in the process of start (1).

  As shown in step 821, the obtained representative fuel consumption may be distributed to the navigation system. In this distribution, the representative fuel efficiency of the model vehicle corresponding to the vehicle identification information of the navigation system may be distributed as the fuel efficiency for each link of each vehicle using the conversion coefficient 630 shown in FIG. The navigation system can calculate a fuel consumption amount for a plurality of routes by performing a stand-alone route search using the distributed representative fuel consumption and using the representative fuel consumption for the searched route. A route corresponding to the minimum fuel consumption of the calculated fuel consumption may be displayed on the display.

  In step 823, the center server receives vehicle identification information, departure point information, and destination information from the navigation system.

  In step 825, the center server searches for one or more routes from the departure point to the destination.

  In step 827, a fuel consumption amount is calculated for each of the searched routes based on the representative fuel consumption.

  In step 829, a route that minimizes fuel consumption is presented to the navigation system. Note that the calculated fuel consumption may also be presented.

  The above is the flow of processing in the method of this embodiment.

  Note that the constituent elements of the method and the program according to the present invention according to the appended claims may be implemented by appropriately changing the order as long as there is no contradiction. Needless to say, methods and programs whose order has been changed are also included in the technical scope of the present invention.

  If the navigation system is implemented in a device that can be separated from the vehicle, such as a portable terminal, a tablet computer, or a laptop PC, data that cannot be measured such as fuel consumption from the navigation system is stored in the center server. May not be sent to. In this case, the navigation system may receive the shortest fuel consumption route information from the center server by transmitting the vehicle identification information, the current location, the destination, and the like to the center server.

The following additional notes are disclosed with respect to the plurality of embodiments described above.
(Appendix 1)
A storage unit that stores a fuel consumption relationship between each of the plurality of moving bodies and the virtual model moving body in association with identification information for identifying each of the plurality of moving bodies;
A receiving unit for receiving information including identification information, position, and fuel consumption of the moving object;
A conversion unit that converts the fuel consumption of the mobile body into the fuel consumption of the model mobile body using the fuel consumption relationship stored in the storage unit, corresponding to the received identification information;
An accumulator that accumulates the fuel consumption of one or more converted model mobile objects in association with the road identification information identified from the position;
A representative fuel efficiency specifying unit that specifies a representative fuel efficiency representing the fuel efficiency of the model mobile body from the fuel efficiency of one or more of the model mobile bodies for each road specifying information;
A device characterized by comprising:
(Appendix 2)
The apparatus according to claim 1, wherein the representative fuel consumption specifying unit calculates an average value of fuel consumption of the model moving body as the representative fuel consumption.
(Appendix 3)
The apparatus according to appendix 1 or 2, wherein the representative fuel efficiency specifying unit targets the fuel efficiency of the model moving body accumulated during a predetermined period.
(Appendix 4)
The apparatus according to any one of appendices 1 to 3, wherein the representative fuel consumption specifying unit targets the fuel consumption of a predetermined number of model moving bodies for each road specifying information.
(Appendix 5)
The apparatus according to any one of appendices 1 to 4, wherein the storage unit stores a predetermined default value until fuel consumption of the model moving body is stored.
(Appendix 6)
Each of the plurality of model mobile bodies has model mobile body identification information, the model mobile body identification information is specified by the identification information,
The device according to any one of appendices 1 to 5, wherein the representative fuel consumption specifying unit further specifies a representative fuel consumption for each model moving body identification information.
(Appendix 7)
The apparatus according to any one of appendices 1 to 6, further comprising a distribution unit that distributes the representative fuel consumption to the mobile body.
(Appendix 8)
A reception unit that receives the mobile object identification information, the departure place, and the destination related to the mobile object of the request source;
A route search unit for searching for one or more routes from the departure point to the destination;
A fuel consumption calculation unit for each route that calculates a fuel consumption amount for each of the one or more routes based on a representative fuel consumption corresponding to the mobile object identification information regarding the mobile object of the request source;
A route information presentation unit that outputs information including a route that minimizes fuel consumption for the one or more routes to the requesting mobile unit;
The apparatus according to any one of appendices 1 to 7, characterized by comprising:
(Appendix 9)
The road identification information is link information including information on whether the moving direction of the moving body is an upward direction or a downward direction and information on two points where the position is determined. 9. The apparatus according to 9.
(Appendix 10)
A method performed by a computer,
Receive information including identification information, location, and fuel consumption
The received identification information in the storage unit stored in association with the identification information for identifying each of the plurality of mobile bodies, the fuel consumption relationship between each of the plurality of mobile bodies and the virtual model mobile body The fuel consumption of the moving body is converted into the fuel consumption of the model moving body using the relationship of the fuel consumption corresponding to
In association with the road specifying information specified from the position, the fuel consumption of one or more converted model moving bodies is accumulated,
For each of the road specifying information, a representative fuel consumption representative of the fuel consumption of the model moving body is specified from the fuel consumption of one or more model moving bodies.
A method characterized by that.
(Appendix 11)
The method according to claim 10, wherein the process of specifying the representative fuel consumption calculates an average value of the fuel consumption of the model moving body as the representative fuel consumption.
(Appendix 12)
12. The method according to appendix 10 or 11, wherein the process of specifying the representative fuel consumption targets a fuel consumption of the model moving body accumulated during a predetermined period.
(Appendix 13)
The method according to any one of appendices 10 to 12, wherein the process of specifying the representative fuel consumption targets the fuel consumption of a predetermined number of model moving bodies for each road specifying information.
(Appendix 14)
The method according to any one of appendices 10 to 13, wherein in the accumulation process, a predetermined default value is accumulated until fuel consumption of the model moving body is accumulated. .
(Appendix 15)
Each of the plurality of model mobile bodies has model mobile body identification information, the model mobile body identification information is specified by the identification information,
15. The method according to any one of appendices 10 to 14, wherein the process of specifying the representative fuel consumption further specifies a representative fuel consumption for each model moving body identification information.
(Appendix 16)
Furthermore, the method as described in any one of the supplementary notes 10 thru | or 15 which distributes the said representative fuel consumption to the said mobile body.
(Appendix 17)
Accept the mobile object identification information, starting point, and destination related to the requesting mobile object,
Search for one or more routes from the origin to the destination;
Calculating a fuel consumption amount for each of the one or more routes based on a representative fuel consumption corresponding to the mobile unit identification information of the request source;
Outputting information including a route that minimizes fuel consumption for the one or more routes to the requesting mobile unit;
The method according to any one of appendices 8 to 16, characterized in that:
(Appendix 18)
The road identification information is link information including information on whether the moving direction of the moving body is an upward direction or a downward direction and information on two points where the position is determined. 18. The method according to 17.
(Appendix 19)
Receive information including identification information, location, and fuel consumption
The received identification information in the storage unit stored in association with the identification information for identifying each of the plurality of mobile bodies, the fuel consumption relationship between each of the plurality of mobile bodies and the virtual model mobile body The fuel consumption of the moving body is converted into the fuel consumption of the model moving body using the relationship of the fuel consumption corresponding to
In association with road identification information identified from the position, one or more converted fuel consumption of the model mobile body is accumulated,
For each of the road specifying information, a representative fuel consumption representative of the fuel consumption of the model moving body is specified from the fuel consumption of one or more model moving bodies.
A program that causes a computer to execute processing.

DESCRIPTION OF SYMBOLS 110 Network 130 Center server 201 Transmission / reception part 203 Storage part 205 Storage part 207 Mobile body fuel consumption conversion part 209 Link specific | specification part 210 Representative fuel consumption specific | specification part 211 Average calculation part 213 Path | route search part 215 Path | route fuel consumption calculation part 217 Path | route information presentation part 220 Input unit 230 Output unit 247 Interface 249 Bus 300 Navigation system

Claims (9)

A storage unit that stores information including a conversion coefficient for converting the fuel consumption of each of the plurality of mobile bodies into the fuel consumption of the virtual model mobile body in association with identification information for identifying each of the plurality of mobile bodies;
A receiving unit for receiving information including identification information, position, and fuel consumption of the moving object;
A conversion unit that converts the fuel consumption of the mobile body into the fuel consumption of the model mobile body using the conversion coefficient stored in the storage unit corresponding to the received identification information;
An accumulator that accumulates the fuel consumption of one or more converted model mobile objects in association with the road identification information identified from the position;
A representative fuel efficiency specifying unit that specifies a representative fuel efficiency representing the fuel efficiency of the model mobile body from the fuel efficiency of one or more of the model mobile bodies for each road specifying information;
I have a,
The representative fuel consumption specifying unit targets the fuel consumption of the model moving body accumulated during a predetermined period .   The apparatus according to claim 1, wherein the representative fuel consumption specifying unit calculates an average value of fuel consumption of the model moving body as the representative fuel consumption. It said representative fuel consumption specification unit is characterized in that the target fuel consumption of a model moving body in a predetermined number for each of the road acquisition information, according to claim 1 or 2. The storage unit, until the fuel consumption of the model moving body is accumulated, characterized in that you accumulate the default value set in advance, according to any one of claims 1 to 3 . Each of the plurality of model mobile bodies has model mobile body identification information, the model mobile body identification information is specified by the identification information,
The apparatus according to any one of claims 1 to 4 , wherein the representative fuel consumption specifying unit further specifies a representative fuel consumption for each model moving body identification information. Characterized by further comprising a delivery unit for delivering the representative fuel to said mobile apparatus according to any one of claims 1 to 5. A reception unit that receives the mobile object identification information, the departure place, and the destination related to the mobile object of the request source;
A route search unit for searching for one or more routes from the departure point to the destination;
A fuel consumption calculation unit for each route that calculates a fuel consumption amount for each of the one or more routes based on a representative fuel consumption corresponding to the mobile object identification information regarding the mobile object of the request source;
A route information presentation unit that outputs information including a route that minimizes fuel consumption for the one or more routes to the requesting mobile unit;
Apparatus according to any one of claims 1 to 6, wherein a. A method performed by a computer,
Receive information including identification information, location, and fuel consumption
It is attached and stored in the serial憶部corresponding to the identification information for identifying information including a conversion coefficient of each of the plurality of moving bodies to convert the fuel consumption of each of the plurality of the movable body to the fuel consumption of the virtual model mobile And using the conversion coefficient stored in the storage unit corresponding to the received identification information, the fuel consumption of the mobile body is converted into the fuel consumption of the model mobile body,
In association with the road specifying information specified from the position, the fuel consumption of one or more converted model moving bodies is accumulated,
For each of the road specifying information, a representative fuel consumption representing the fuel consumption of the model mobile body is specified from the fuel consumption of one or more model mobile bodies ,
The process of specifying the representative fuel consumption targets the fuel consumption of the model moving body accumulated during a predetermined period .
A method characterized by that. Receive information including identification information, location, and fuel consumption
It is attached and stored in the serial憶部corresponding to the identification information for identifying information including a conversion coefficient of each of the plurality of moving bodies to convert the fuel consumption of each of the plurality of the movable body to the fuel consumption of the virtual model mobile And using the conversion coefficient stored in the storage unit corresponding to the received identification information, the fuel consumption of the mobile body is converted into the fuel consumption of the model mobile body,
In association with road identification information identified from the position, one or more converted fuel consumption of the model mobile body is accumulated,
For each of the road specifying information, a representative fuel consumption representing the fuel consumption of the model mobile body is specified from the fuel consumption of one or more model mobile bodies ,
The process of specifying the representative fuel consumption targets the fuel consumption of the model moving body accumulated during a predetermined period .
A program that causes a computer to execute processing.

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