JP5649908B2 - NAVIGATION SYSTEM, SERVER DEVICE, TERMINAL DEVICE, NAVIGATION DEVICE, NAVIGATION METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a navigation system, a server device, a terminal device, a navigation device, a navigation method, and a program.

  Conventionally, navigation systems that take the weather into account have been developed.

  For example, in the navigation system described in Patent Document 1, it is disclosed that a safety degree due to weather such as wind speed is determined, and when a location with a safety level lower than a predetermined safety level is detected, a bypass route is searched. .

  Moreover, in the navigation apparatus described in Patent Document 2, it is disclosed that an image indicating a wind direction and a wind speed is displayed on a map on a display screen of the navigation apparatus.

JP 2007-47034 A JP 2006-292656 A

  However, in the navigation system described in Patent Document 1, only the safety level is considered. However, when the safety level is equal to or higher than a predetermined value, there is a problem that no driving load due to wind is considered. It was.

  Further, in the navigation device described in Patent Literature 2, although the user can confirm the wind direction displayed on the map, the user himself / herself needs to consider the travel route while viewing the wind direction display. There was a problem.

  The present invention has been made in view of the above problems, and provides a navigation system, a server device, a terminal device, a navigation device, a navigation method, and a program capable of providing a route that takes into account a traveling load caused by wind. The purpose is to do.

  In order to achieve such an object, in the navigation system of the present invention, a server device including at least a control unit and a storage unit and a terminal device including at least a control unit and an output unit are communicably connected. In the navigation system, the storage unit of the server device includes network data storage means for storing road network data defining a road network, and the control unit of the server device is transmitted from the terminal device. A route search condition receiving means for receiving a route search condition including at least a departure place and a destination, the road network data stored in the network data storage means, and wind load information indicating a driving load caused by wind. A route search that searches for and acquires a route from the departure point to the destination that satisfies the route search condition. Means, route information generating means for generating route information indicating the route acquired by the route searching means, and route information transmitting means for transmitting the route information generated by the route information generating means to the terminal device The control unit of the terminal device includes: a route search condition transmitting unit that transmits the route search condition to the server device; and a route information receiving unit that receives the route information transmitted from the server device. And route information output means for outputting the route information received by the route information receiving means to the output unit.

  In the navigation system according to the present invention, in the navigation system described above, the storage unit of the server device further includes a wind direction and wind speed information storage unit that stores wind direction and wind speed information related to the wind direction and the wind speed. Based on the wind direction wind speed information stored in the wind direction wind speed information storage means, the controller analyzes the wind volume component based on the road link of the road network data to calculate the wind load, and calculates the wind load. Wind load calculation means for generating load information is further provided.

  In the navigation system according to the present invention, in the navigation system described above, the wind load calculation means travels the wind direction and the air volume vector represented by the wind speed based on the wind direction wind speed information along the road link. A navigation system, wherein the wind load is calculated on the basis of each of the air volume components by decomposing the air volume component in a direction and the air volume component in a direction perpendicular to the traveling direction.

  In the navigation system according to the present invention, in the navigation system described above, the wind load calculation unit weights the road link based on the road network data stored in the network data storage unit. The wind load is calculated.

  In the navigation system of the present invention, in the navigation system described above, the storage unit of the server device further includes map data storage means for storing map data, and the wind load calculation means is the map data storage. The wind load is calculated by weighting the road link based on the map data around the road link stored by the means.

  In the navigation system of the present invention, in the navigation system described above, the road network data stored in the network data storage means includes a link cost, and the route search means includes the link cost of the road network data. In consideration of the wind load information, the route that satisfies the route search condition is searched.

  In the navigation system of the present invention, in the navigation system described above, the route search means searches the route by adding the wind load of the wind load information as a wind cost to the link cost of the road link. It is characterized by doing.

  The navigation system of the present invention is characterized in that, in the navigation system described above, the route search means searches for the route by multiplying the link cost by a cost increase / decrease degree indicating a ratio according to the wind load. And

  In the navigation system of the present invention, in the navigation system described above, the storage unit of the server device further includes wind load information storage means for storing the wind load information, and the route search means includes the road The route is searched based on the link cost of the network data and the wind load information stored in the wind load information storage means.

  In the navigation system according to the present invention, in the navigation system described above, the link cost of the road network data is a wind-considered link cost in which the wind load is taken into consideration in the cost of the road link, and the route The search means searches for the route based on the wind-considered link cost of the road network data stored in the network data storage means.

  In the navigation system according to the present invention, in the navigation system described above, the route information generation unit adds information on the wind around the route in addition to the route information acquired by the route search unit. The route information is generated.

  In the navigation system according to the present invention, in the navigation system described above, the route information generation unit includes information on wind load or wind on the route in addition to the route information acquired by the route search unit. The route information added on the map around the route is generated.

  In the navigation system according to the present invention, in the navigation system described above, the wind load calculation unit calculates an air volume or wind load in a plurality of time zones on the route, or an air volume or wind load on a plurality of routes. The route information generating means generates the route information further including information based on the plurality of air volumes or the wind loads calculated by the wind load calculating means.

  In the navigation system according to the present invention, in the navigation system described above, the route information generation unit calculates the travel calculated based on the air volume, the wind load, or the wind load calculated by the wind load calculation unit. The route information is generated by converting a load into an index.

  The navigation system of the present invention is a navigation system in which a server device including at least a control unit and a storage unit, and a terminal device including at least a control unit and an output unit are connected so as to be able to communicate with each other. The storage unit of the server device includes network data storage means for storing road network data that defines a road network, and the control unit of the server device transmits at least a starting point and a destination transmitted from the terminal device. A route search condition receiving means for receiving a route search condition including the information and a route from the starting point to the destination satisfying the route search condition based on the road network data stored in the network data storage means Route search means, wind load information indicating travel load caused by wind, and the route searcher A route information generating unit that generates route information based on the route acquired by the step, and a route information transmitting unit that transmits the route information generated by the route information generating unit to the terminal device, The control unit of the terminal device includes a route search condition transmission unit that transmits the route search condition to the server device, a route information reception unit that receives the route information transmitted from the server device, and the route information. Route information output means for outputting the route information received by the receiving means to the output unit.

  In the navigation system according to the present invention, in the navigation system described above, when the wind load information is updated, the route search unit is configured to route the route from the starting point to the destination satisfying the route search condition. It is characterized by re-searching.

  The navigation system of the present invention is the above navigation system, wherein the route searching means searches for the route for a bicycle when the moving means is a bicycle based on the road network data and the wind load information. It is characterized by doing.

  In addition, the navigation system of the present invention includes a network data storage means for storing road network data defining a road network, the road network data stored in the network data storage means, and a wind load indicating a running load due to wind. Based on the information, the route search means for searching for and acquiring the route from the departure place to the destination satisfying the route search condition including at least the departure place and the destination, and the route obtained by the route search means Route information generating means for generating the route information shown, and route information output means for outputting the route information generated by the route information generating means to an output unit.

  The navigation system of the present invention includes at least a starting point and a destination based on network data storage means for storing road network data defining a road network and the road network data stored in the network data storage means. Route search means for searching for and acquiring a route from the starting point to the destination satisfying the route search condition including the wind load information indicating a driving load caused by wind, and the route acquired by the route search means On the basis of this, it is characterized by comprising route information generating means for generating route information, and route information output means for outputting the route information generated by the route information generating means to an output unit.

  The server device of the present invention is a server device having at least a control unit and a storage unit that are communicably connected to a terminal device having at least an output unit, wherein the storage unit defines a road network. Network data storage means for storing road network data to be transmitted, wherein the control unit is configured to receive route search condition reception means for receiving a route search condition including at least a departure place and a destination, transmitted from the terminal device; Based on the road network data stored in the network data storage means and the wind load information indicating the driving load caused by wind, the route from the starting point to the destination satisfying the route search condition is searched and acquired. Route search means, route information generation means for generating route information indicating the route acquired by the route search means, and route information generation The route information generated by the unit, by transmitting to the terminal device, characterized by comprising a path information transmission means for outputting to the output unit.

  The server device of the present invention is a server device having at least a control unit and a storage unit that are communicably connected to a terminal device having at least an output unit, wherein the storage unit defines a road network. Network data storage means for storing road network data to be transmitted, wherein the control unit is configured to receive route search condition reception means for receiving a route search condition including at least a departure place and a destination, transmitted from the terminal device; Based on the road network data stored in the network data storage means, route search means for searching for and acquiring a route from the starting point to the destination satisfying the route search condition, and wind indicating a driving load caused by wind Route information generating means for generating route information based on the load information and the route acquired by the route searching means; and the route The route information generated by the broadcast generating unit, by transmitting to the terminal device, characterized by comprising a route information transmitting unit for outputting to the output unit of the terminal device.

  The terminal device of the present invention is a terminal device including at least a control unit and an output unit that are communicably connected to a server device including at least a storage unit, and the storage unit defines a road network. Network data storage means for storing road network data to be transmitted, wherein the control unit transmits a route search condition including at least a starting point and a destination to the server device, and the network data storage means Route information receiving means for receiving the generated route information from the server device and the route information receiving means based on the road network data stored in the vehicle and the wind load information indicating the driving load caused by wind. And route information output means for outputting the route information to the output unit.

  The navigation device of the present invention is a navigation device including at least a storage unit, a control unit, and an output unit, and the storage unit includes network data storage means for storing road network data defining a road network. And the control unit, based on the road network data stored in the network data storage means, and wind load information indicating a wind-induced travel load, the departure condition that satisfies a route search condition including at least a departure place and a destination. Route search means for searching and acquiring a route from the ground to the destination, route information generation means for generating route information indicating the route acquired by the route search means, and the route information generation means. And route information output means for outputting the route information to an output unit.

  The navigation device of the present invention is a navigation device including at least a storage unit, a control unit, and an output unit, and the storage unit includes network data storage means for storing road network data defining a road network. The control unit searches for a route from the starting point to the destination satisfying a route search condition including at least a starting point and a destination based on the road network data stored in the network data storage unit. Based on the route search means to be acquired, the wind load information indicating the driving load due to wind, and the route information generated based on the route acquired by the route search means, the route information generation means And a route information transmission unit that outputs the generated route information to an output unit.

  Further, the navigation method of the present invention is a navigation executed in a navigation system in which a server device including at least a control unit and a storage unit and a terminal device including at least a control unit and an output unit are communicably connected. In the method, the storage unit of the server device includes network data storage means for storing road network data that defines a road network, and is executed in the control unit of the terminal device, at least a departure place and a purpose A route search condition transmitting step for transmitting a route search condition including a ground to the server device, and a route search condition for receiving the route search condition transmitted from the terminal device, executed in the control unit of the server device. The network executed in the receiving step and the control unit of the server device Based on the road network data stored in the data storage means and the wind load information indicating the driving load caused by wind, the route from the starting point to the destination satisfying the route search condition is searched and acquired. Executed in the route search step, the route information generation step for generating the route information indicating the route acquired in the route search step, executed in the control unit of the server device, and executed in the control unit of the server device The route information generated in the route information generation step is transmitted from the server device, the route information transmission step for transmitting to the terminal device, and the control unit of the terminal device, A route information receiving step for receiving the route information; and the route information receiving step executed in the control unit of the terminal device. The route information received in-up, characterized in that it comprises a path information output step of outputting to the output unit.

  Further, the navigation method of the present invention is a navigation executed in a navigation system in which a server device including at least a control unit and a storage unit and a terminal device including at least a control unit and an output unit are communicably connected. In the method, the storage unit of the server device includes network data storage means for storing road network data that defines a road network, and is executed in the control unit of the terminal device, at least a departure place and a purpose A route search condition transmitting step for transmitting a route search condition including a ground to the server device, and a route search condition for receiving the route search condition transmitted from the terminal device, executed in the control unit of the server device. The network executed in the receiving step and the control unit of the server device A route search step for searching for and acquiring a route from the starting point to the destination satisfying the route search condition based on the road network data stored in the data storage means; and the control unit of the server device And a route information generation step for generating route information based on wind load information indicating a traveling load caused by wind and the route acquired in the route search step, and the control unit of the server device. The route information generated in the route information generation step is transmitted to the terminal device, and the route information transmission step is transmitted from the server device, which is executed in the control unit of the terminal device. The route information receiving step for receiving the route information, and the route information executed in the control unit of the terminal device. The route information received at signal step, characterized in that it comprises a path information output step of outputting to the output unit.

  The navigation method of the present invention is a navigation method executed in a navigation system, and the navigation system stores network data storage means for storing road network data defining a road network, route search means, and route information. Generating means and route information output means, wherein the route search means is based on the road network data stored in the network data storage means and wind load information indicating a driving load caused by wind, at least starting A route search step for searching for and acquiring a route from the starting point to the destination satisfying a route search condition including a place and a destination, and the route information generated by the route information generating unit in the route searching step. A route information generation step for generating route information indicating the route information, and the route information Force means, characterized in that it comprises the path information generated by the path information generation step, and a route information output step of outputting to the output unit.

  The navigation method of the present invention is a navigation method executed in a navigation system, and the navigation system stores network data storage means for storing road network data defining a road network, route search means, and route information. Generating means and route information output means, wherein the route search means satisfies the route search condition including at least a departure place and a destination based on the road network data stored in the network data storage means. A route search step for searching for and acquiring a route from the starting point to the destination, wind load information indicating a driving load caused by wind by the route information generating means, and the route acquired in the route search step A route information generation step for generating route information based on Information output means, characterized in that it comprises the path information generated by the path information generation step, and a route information output step of outputting to the output unit.

  Further, the navigation method of the present invention is a navigation method executed in a server device having at least a control unit and a storage unit, which is communicably connected to a terminal device having at least an output unit, the storage unit Comprises network data storage means for storing road network data defining a road network, and receives route search conditions including at least a departure place and a destination, transmitted from the terminal device, executed in the control unit. The route search condition receiving step, the road network data stored in the network data storage means, and the wind load information indicating the wind-borne travel load, from the starting point to the destination satisfying the route search condition The route search step that searches and acquires the route up to and acquired by the route search step A route information generation step for generating route information indicating the route, and a route information transmission for causing the output unit to output the route information generated in the route information generation step to the terminal device. And a step.

  Further, the navigation method of the present invention is a navigation method executed in a server device having at least a control unit and a storage unit, which is communicably connected to a terminal device having at least an output unit, the storage unit Comprises network data storage means for storing road network data defining a road network, and receives route search conditions including at least a departure place and a destination, transmitted from the terminal device, executed in the control unit. A route search condition receiving step, and a route search step of searching for and acquiring a route from the starting point to the destination satisfying the route search condition based on the road network data stored in the network data storage unit And wind load information indicating the driving load due to wind, and the route search step. Based on the route, the route information generation step for generating route information and the route information generated in the route information generation step are transmitted to the terminal device, so that the output unit of the terminal device And a route information transmission step for outputting.

  The navigation method of the present invention is a navigation method executed in a terminal device having at least a control unit and an output unit, which is communicably connected to a server device having at least a storage unit. Comprises a network data storage means for storing road network data defining a road network, and is executed in the control unit and transmits a route search condition including at least a starting point and a destination to the server device. A transmission step; a route information reception step of receiving generated route information from the server device based on the road network data stored in the network data storage means and wind load information indicating a driving load caused by wind; The route information received in the route information receiving step is output to the output unit. Characterized in that it comprises a route information output step of, a.

  The navigation method of the present invention is a navigation method executed in a navigation device having at least a storage unit, a control unit, and an output unit, and the storage unit stores a network of road network data defining a road network. At least a starting point and a destination based on the road network data stored in the network data storage unit and wind load information indicating a driving load caused by wind. A route search step for searching for and acquiring a route from the starting point to the destination satisfying a route search condition including a route information generating step for generating route information indicating the route acquired in the route searching step And the route information generated by the route information generation step to the output unit. Characterized in that it comprises a route information output step of force, the.

  The navigation method of the present invention is a navigation method executed in a navigation device having at least a storage unit, a control unit, and an output unit, and the storage unit stores a network of road network data defining a road network. Data storage means, and based on the road network data stored in the network data storage means, which is executed in the control unit, from the departure place satisfying a route search condition including at least a departure place and a destination. A route search step for searching for and acquiring a route to the destination, wind load information indicating a driving load due to wind, and route information for generating route information based on the route acquired in the route search step The generation step and the route information generated in the route information generation step are output. Characterized in that it comprises a path information transmitting step of outputting to.

  Further, the program of the present invention is a program for causing a server device including at least a control unit and a storage unit to be communicably connected to a terminal device including at least an output unit, wherein the storage unit includes: A network data storage means for storing road network data for defining a road network, and the route search condition for receiving the route search condition including at least a departure place and a destination transmitted from the terminal device in the control unit Based on the reception step, the road network data stored in the network data storage means, and wind load information indicating a driving load caused by wind, a route from the starting point to the destination satisfying the route search condition is obtained. A route search step acquired by searching, and route information indicating the route acquired by the route search step. A route information generation step for generating the route information and a route information transmission step for outputting the route information generated in the route information generation step to the output unit by transmitting the route information to the terminal device. Features.

  Further, the program of the present invention is a program for causing a server device including at least a control unit and a storage unit to be communicably connected to a terminal device including at least an output unit, wherein the storage unit includes: A network data storage means for storing road network data for defining a road network, and the route search condition for receiving the route search condition including at least a departure place and a destination transmitted from the terminal device in the control unit Based on the road network data stored in the network data storage means, a route search step for searching for and obtaining a route from the starting point to the destination satisfying the route search condition, and by wind Based on the wind load information indicating the traveling load and the route acquired in the route search step, A route information generation step for generating information; a route information transmission step for outputting the route information generated in the route information generation step to the output unit of the terminal device by transmitting the route information to the terminal device; Is executed.

  Further, the program of the present invention is a program for causing a terminal device including at least a control unit and an output unit, which is communicably connected to a server device including at least a storage unit, to execute the program. Network data storage means for storing road network data defining a road network, and in the control unit, a route search condition transmission step of transmitting a route search condition including at least a starting point and a destination to the server device; A route information receiving step for receiving generated route information from the server device based on the road network data stored in the network data storage means and wind load information indicating a driving load caused by wind; and the route information A route information output step for outputting the route information received in the receiving step to the output unit. , Characterized in that for the execution.

  The program of the present invention is a program for causing a navigation device including at least a storage unit, a control unit, and an output unit to execute, and the storage unit stores network data for storing road network data defining a road network. A route search including at least a departure place and a destination based on the road network data stored in the network data storage means and wind load information indicating a travel load caused by wind. A route search step for searching for and acquiring a route from the starting point to the destination satisfying a condition, a route information generating step for generating route information indicating the route acquired in the route searching step, and the route The route information output step for outputting the route information generated in the information generation step to the output unit. Characterized in that to execute, when.

  The program of the present invention is a program for causing a navigation device including at least a storage unit, a control unit, and an output unit to execute, and the storage unit stores network data for storing road network data defining a road network. Storage means, and in the control unit, based on the road network data stored in the network data storage means, the route from the starting point to the destination satisfying the route search condition including at least the starting point and the destination A route search step for searching for and acquiring a route; wind load information indicating a driving load caused by wind; and a route information generating step for generating route information based on the route acquired in the route search step; The route information transmission step for outputting the route information generated in the route information generation step to the output unit. Characterized in that to execute Tsu and up, the.

  According to the present invention, the server device stores the road network data defining the road network, receives the route search condition including at least the departure place and the destination transmitted from the terminal device, the road network data, and Based on the wind load information indicating the driving load due to the wind, search and acquire the route from the departure point to the destination satisfying the route search condition, generate the route information indicating the acquired route, the generated route information, The terminal device receives the route information transmitted from the server device, and outputs the received route information to the output unit. Thereby, according to this invention, there exists an effect that the path | route which considered the driving | running | working load by a wind can be provided. More specifically, there is an effect that it is possible to provide the user with a route that reduces the traveling load so that the wind is less likely to be a headwind and is a tailwind in consideration of the wind direction, the wind speed, and the like.

  Further, according to the present invention, the wind direction and wind speed information related to the wind speed is stored, and based on the wind direction wind speed information, the wind load component is calculated by analyzing the wind volume component based on the road link of the road network data, Generate wind load information. As a result, the present invention analyzes the wind volume component of the road link based on the wind direction and the wind speed, so for each road, it analyzes whether the wind is a tailwind, a headwind or a crosswind, and the wind load. There is an effect that it is possible to calculate a route with less.

  Further, according to the present invention, the wind direction vector expressed by the wind direction and the wind speed based on the wind direction wind speed information is decomposed into an air volume component in the traveling direction along the road link and an air volume component in a direction perpendicular to the traveling direction, A wind load is calculated based on each air volume component. Thereby, the present invention can decompose the air volume vector represented by the wind direction and the wind speed into orthogonal components along the road link, and appropriately calculate the wind load according to the front and rear air volume components and the left and right air volume components. There is an effect that can be done.

  Moreover, according to this invention, there exists an effect that the wind load nearer to an actual road condition (experience) can be calculated by weighting a road link based on road network data.

  Further, according to the present invention, it is possible to calculate the wind load closer to the actual road condition (experience) by storing the map data and weighting the road links based on the stored map data around the road links. , Has the effect.

  Further, according to the present invention, the road network data includes a link cost of the road link, and a route satisfying the route search condition is searched by adding wind load information to the link cost of the road network data. As a result, according to the present invention, the route is searched by taking into consideration the travel load caused by wind in addition to the link cost such as time and distance, so an appropriate route taking into account the travel load caused by wind is acquired and provided to the user. There is an effect that it is possible to do.

  Further, according to the present invention, since the route is searched by adding the wind load of the wind load information as the wind cost to the link cost of the road link, not only the link cost such as distance and time but also the link cost due to the wind load. The route search can be performed in consideration of the above, and an appropriate route with a low wind load can be provided to the user.

  Further, according to the present invention, since the route is searched by multiplying the link cost by the cost increase / decrease degree indicating the ratio according to the wind load, there is an effect that the wind load can be calculated in consideration of the original link cost.

  Further, according to the present invention, wind load information is stored, and a route is searched based on the link cost of road network data and the stored wind load information. Therefore, the wind load information stored in advance can be used at high speed. There is an effect that the search result can be calculated.

  Further, according to the present invention, the link cost of the road network data is a wind-considered link cost in which the wind load is taken into consideration in the cost of the road link, and based on the wind-considered link cost of the stored road network data, Search for a route. As a result, the present invention stores in advance wind-considered link costs that take into account wind loads in addition to time, distance, etc., and refers to the stored wind-considered link costs to search for a route that considers wind at high speed. There is an effect that the result can be provided to the user.

  Further, according to the present invention, in addition to the acquired route information, the route information with the information about the wind in the vicinity of the route is generated. There is an effect that it can be appropriately presented to the user.

  Further, according to the present invention, in addition to the acquired route information, the route information in which the wind load or the wind information on the route is added to the map around the route is generated. In addition, there is an effect that the wind load and wind conditions on the route can be appropriately presented to the user.

  According to the present invention, the air volume or wind load in a plurality of time zones on the route, or the air volume or wind load on the plurality of routes is calculated, and information based on the calculated air volumes or wind loads is further calculated. Since the route information including the route information is generated, it is possible to present to the user the air volume and wind load on the route by departure time and the like, and the air volume and wind load by route.

  In addition, according to the present invention, the calculated air volume, the wind load, or the travel load calculated based on the wind load is converted into an index to generate route information. It is converted into an index value such as the above, and the effect is presented that it can be presented to the user in an easy-to-understand manner.

  According to the present invention, the server device stores road network data defining the road network, receives a route search condition including at least a departure place and a destination transmitted from the terminal device, and stores the road network data in the road network data. Based on the route from the starting point to the destination satisfying the route search condition and acquired, and the route information is generated based on the wind load information indicating the driving load caused by the wind and the acquired route. The route information is transmitted to the terminal device, the terminal device receives the route information, and outputs the received route information to the output unit. Thereby, according to this invention, there exists an effect that the driving | running | working load by the wind about a search route can be provided.

  Further, according to the present invention, when the wind load information is updated, the route from the starting point to the destination satisfying the route search condition is re-searched. Therefore, the route searched again based on the latest wind load information is obtained. The search result can be provided to the user.

  Further, according to the present invention, the route for the bicycle when the moving means is a bicycle is searched based on the road network data and the wind load information. There is an effect that it is possible to provide a route for a bicycle according to a road or the like.

  In the above description, the navigation system of the present invention has been described as an example. However, the server device, the terminal device, the navigation device, the navigation method, and the program 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 diagram illustrating an example of wind direction and wind speed information stored in the wind direction and wind speed database 206c. FIG. 3 is a diagram illustrating an example of wind load information stored in the wind load database 206d. FIG. 4 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment. FIG. 5 is a diagram illustrating an example of a route search condition setting screen displayed on the output unit 114 when the moving means is a bicycle under the control of the route search condition transmission unit 102b. FIG. 6 is a flowchart illustrating an example of an air volume calculation process and a wind load calculation process for performing a route search in consideration of wind. FIG. 7 is a diagram schematically illustrating a method of calculating the air volume component based on the wind direction wind speed information by the air volume calculating unit 202c. FIG. 8 is a diagram illustrating a display screen example based on route information generated by the route information generation unit 202f. FIG. 9 is a diagram illustrating an example of route information that is generated by the route information generation unit 202f and that indicates that the wind load at each departure time can be compared. FIG. 10 is a diagram illustrating an example of route information that is generated by the route information generation unit 202f and that indicates that the calories burned for different routes can be compared. FIG. 11 is a block diagram illustrating an example of a configuration of the navigation device 400 according to the second embodiment. FIG. 12 is a flowchart illustrating an example of processing of the navigation device 400 according to the second embodiment.

  Hereinafter, embodiments of a navigation system, a server device, a terminal device, a navigation device, a navigation 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 device (stand-alone type)).

[First Embodiment]
First, a first embodiment (navigation system) of the present invention will be described below with reference to FIGS. However, the following first embodiment exemplifies a navigation system for embodying the technical idea of the present invention, and is not intended to specify the present invention in this navigation system. It is equally applicable to the navigation systems of other embodiments that fall within the scope of the claims. For example, the form of function distribution on the server side and the terminal side in the navigation system exemplified in the first embodiment is not limited to the following, and functionally or physically in arbitrary units as long as similar effects and functions can be achieved. It can be configured to be distributed and integrated.

[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. In the first embodiment, a navigation system that provides communication-type navigation will be described as a specific example. However, the present invention is not limited to this and can be applied to a stand-alone navigation system.

  As shown in FIG. 1, the navigation system of the first embodiment is generally configured by connecting a server device 200, a terminal device 100, and an external device 600 so that they can communicate with each other. Here, as shown in FIG. 1, the communication includes, for example, remote communication such as wired / wireless communication via the network 300.

  As shown in FIG. 1, in the navigation system of the first embodiment, the server device 200 schematically includes at least a control unit 202 and a storage unit 206, and the terminal device 100 includes a position acquisition unit 112 and At least an output unit 114, an input unit 116, and a control unit 102 are provided. Each part of these navigation systems is communicably connected via an arbitrary communication path.

[Configuration of Server Device 200]
Here, in FIG. 1, the server device 200 receives a route search condition including at least a departure place and a destination transmitted from the terminal device 100, and road network data and wind load information indicating a driving load caused by wind Based on the above, a route from the departure point to the destination satisfying the route search condition is searched and acquired, route information indicating the acquired route is generated, and the generated route information is transmitted to the terminal device 100, It has a function of outputting to the output unit 114 of the terminal device 100. The server device 200 is connected to the terminal device 100 and the external device 600 via the communication control interface unit 204 via the network 300 so as to be able to communicate with each other, and includes a control unit 202 and a storage unit 206. The network 300 has a function of mutually connecting the terminal device 100, the server device 200, the external device 600, and the like. For example, the Internet, a telephone line network (a mobile terminal line network, a general telephone line network, etc.) Intranet or power line communication (PLC) may be used. The external device 600 (for example, a server such as a meteorological agency or a private weather company) has a function of providing weather information related to wind such as wind direction and wind speed, and server such as measured weather information and predicted weather forecast. To device 200. For example, the weather information is information indicating an expected wind direction and an expected wind speed in each region and each time zone.

  The control unit 202 is a control unit that performs various processes. 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 or a telephone line, and performs communication control between the server device 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 terminal device 100, the external device 600, and the like via a communication line. The storage unit 206 is a storage unit such as a fixed disk device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and various databases and tables (a network database 206a, a map database 206b, a wind direction wind speed database 206c, and , Wind load database 206d, etc.).

  Among these components of the storage unit 206, the network database 206a is a network data storage unit that stores road network data that defines a road network. Here, the road network data stored in the network database 206a is stored in advance in the network database 206a, and the control unit 202 of the server apparatus 200 periodically transmits the latest data via the network 300 to an external device (for example, Network data downloaded from a network data server that provides road network data, etc.) and stored in the network database 206a may be updated.

  Here, the road network data stored in the network database 206a is network data that defines a road network. For example, node data of nodes that are nodes on a road network expression such as a station or an intersection, and between nodes It is network data expressed by a combination with link data of road links that are road sections. 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, and an intersection name. The link data includes the link number (link ID), the type of road to be connected, the route number of national roads, prefectural roads, city roads, etc., important route information, attribute information of administrative districts where road links exist, link length, Road service conditions, abnormal weather traffic restriction sections, vehicle weight restrictions, vehicle height restrictions, width, road width classification, number of lanes, speed restrictions, in-link attributes such as overpasses, tunnels and bridges, required time, and , Name, etc. may be included. The road network data may include the link cost of the road link in association with the road link. For example, the time, distance, usage fee data, etc. required to pass the road link may be included. May contain data about charges. Note that the link cost is not limited to a link cost that is normally used such as time, distance, and fee, but may be a wind-considered link cost that also takes into account a traveling load (wind load) due to wind. In addition, the usage fee data may be information representing a bridge toll, a toll on a toll road such as a high-speed automobile national road, an automobile exclusive road, or the like necessary for traveling by bicycle, automobile, motorcycle, or the like. Further, the road network data may store location information such as latitude and longitude information of points such as facilities existing on a route when traveling by bicycle, walking, motorcycle, car, or the like.

  The map database 206b is map data storage means for storing map data. In the first embodiment, the map data stored in the map database 206b may be map data such as road maps of the whole country and each region. For example, the map data stored in the map database 206b includes features displayed on the map (for example, buildings such as buildings, houses and stations, roads, railroads, bridges, tunnels, contour lines, coast lines, lake shore lines, etc. Shape data on the shape of water lines, seas, rivers, lakes, ponds, swamps, places such as parks and outdoor facilities, administrative boundaries, administrative districts, and city blocks, etc., and notes displayed on the map (for example, place names) , Address, telephone number, facility name of shops, parks, stations, etc., names including landmarks, historic sites, rivers, lakes, bays, mountains, forests, etc., names of roads, bridges, tunnels, route names, point information , And word-of-mouth information, etc., and symbols displayed on the map (for example, map symbols such as mountains, historic sites, temples, schools, hospitals, factories and cemeteries, gas stations, convenience stores, supermarkets, restaurants) Store symbols such as banks and post offices, road signals, toll road entrances, toll gates, service areas, parking areas and interchange symbols, parking lots, station, hotel, museum and facility symbols, and It may include data such as symbol data of a review point symbol). Here, the map data may be map data meshed according to a scale (for example, JIS standard first to third region division mesh data, 100 m mesh data, etc.) and the like. Further, the map data may be map drawing image data such as a raster format or a vector format. These map data are stored in advance in the map database 206b, and the control unit 202 of the server device 200 periodically sends the latest data via the network 300 to the external device 600 (a map providing server or the like that provides map data). The map data downloaded from the external device or the like and stored in the map database 206b may be updated.

  The wind direction and wind speed database 206c is a wind direction and wind speed information storage unit that stores information related to wind such as wind direction and wind speed information related to wind direction and wind speed. In the present embodiment, “information about wind” refers to at least one or a combination of information exemplified by wind speed information, wind direction information, air volume information, and the like. For example, the wind direction wind speed information stored in the wind direction wind speed database 206c is information in which the wind direction and the wind speed are stored in association with a region (area) and a time zone (time zone for each unit time). The azimuth may be an azimuth angle, a numerical value based on the azimuth angle, or an identifier assigned to each azimuth (direction). Here, the wind direction and wind speed information may be measured wind direction and wind speed information in each region and each time zone, or may be predicted wind direction and wind speed information in each region and each time zone. For example, the wind direction and wind speed information is information on the wind direction and wind speed for each region that changes with the passage of time in the future. Here, FIG. 2 is a diagram illustrating an example of the wind direction and wind speed information stored in the wind direction and wind speed database 206c.

  As shown in FIG. 2, the wind direction and wind speed database 206c stores information on the wind direction and the wind speed in association with the area and unit time. In addition to this, the wind direction and wind speed database 206c includes air pollution such as weather, air temperature, sensible temperature, humidity, probability of precipitation, wind, ultraviolet rays, photochemical smog and yellow dust scattering, pollen scattering, weather warning, and weather. Weather information about the alarm may be stored. The wind direction and wind speed information is stored in advance in the wind direction and wind speed database 206c, and the control unit 202 of the server apparatus 200 periodically or in real time transmits the latest data via the network 300 to the external device 600 (for example, the Japan Meteorological Agency or The wind direction and wind speed information downloaded from a server of a private weather company or the like and stored in the wind direction and wind speed database 206c may be updated. Note that when wind direction / wind speed information is received from the external device 600, wind load information calculated based on the received wind direction / wind speed information may be stored in a wind load database 206d to be described later. It is not necessary to store information in the wind direction / wind speed database 206d, and the wind direction / wind speed database 206d may be omitted. As an example, the wind direction and wind speed data provided by an external device 600 such as a server such as the Japan Meteorological Agency or a private meteorological company are tabular data indicating the wind direction and wind speed expected in each region and each time zone. Data, graphed data, graph original data, etc., the control unit 202 of the server device 200 downloads the data from an external device, processes the data, and makes predictions in units of meshes or areas. The wind direction / wind speed may be stored in the wind direction / wind speed database 206c as the wind direction / wind speed information. Preferably, the predicted wind direction and wind speed information is information predicted by a person who is legally authorized to perform weather forecasting operations, or weather information (weather forecast information) by the Japan Meteorological Agency or a private weather company sugar. May be. In addition, when the wind direction / wind speed data provided by the external device 600 is the wind direction / wind speed data at a representative point (a place where an observation point is located), the control unit 202 of the server device 200 displays the area between the representative points. The wind direction / wind speed may be calculated by a known data interpolation method or interpolation method and stored in the wind direction / wind speed database 206c.

  The wind load database 206d is a wind load information storage unit that stores wind load information. Here, in this embodiment, “wind load” indicates a travel load based on information related to wind, and the wind load information is information indicating a travel load (wind load) due to wind. Preferably, the wind load information is an increase / decrease amount or a degree of increase / decrease (ratio) for adding travel addition by wind to (original) link costs such as distance and time. For example, the wind load database 206d stores information on wind loads (wind cost, cost increase / decrease degree, etc.) predetermined for each road link by wind direction and wind speed level. Here, FIG. 3 is a diagram illustrating an example of wind load information stored in the wind load database 206d.

As an example, as shown in FIG. 3, the wind load information stored in the wind load database 206d is associated with the link ID of the road link, and the time cost (unit: wind speed) for each wind speed level and each wind direction. Min) information. Thus, the wind load information stored in the wind load database 206d is a list of wind loads calculated in advance based on the link direction (traveling direction) for each road link stored in the network database 206a. Wind load information is stored for each link, each wind speed level, and each wind direction. In the example of FIG. 3, it is assumed that the link cost stored in the network database 206d is a cost according to time, and the wind load is stored in terms of time cost. However, the present invention is not limited to this and is used as the link cost. Depending on the unit (distance, fuel cost, etc.), the wind load cost converted to these units may be stored. The wind load information converted to the link cost unit is used when a route search is performed by the route search unit 202e of the control unit 202 described later, and is increased or decreased to the original link cost. For example, in the example of FIG. 3, regarding the link 61 that is a link traveling from south to north, when the wind direction of the wind blowing on the road of the link 61 is south and the wind speed is 1 m / s, Under the influence, the travel cost (time conversion) is shortened by 0.2 minutes compared to the normal (no wind condition). The wind load information stored in the wind load database 206d is not limited to the increase / decrease value with respect to the original link cost, but may be a rate (%) of increase / decrease with respect to the original link cost. As described above, when storing the wind-considered link cost in which the wind load is taken into consideration in the original link cost (wind load is added as the wind cost), the wind load database 206d is stored in the network database 206a. It is also possible to adopt a configuration that does not include. Conversely, network data can be stored in the network database 206a without storing link costs, and wind-considered link costs can be stored in the wind load database 206d. Note that the following relational expression holds between the original link cost, wind cost, and wind consideration cost.
(Original link cost) + (Wind cost) = (Wind consideration cost)

  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. The control unit 202 is functionally conceptually configured to include a current position information receiving unit 202a, a route search condition receiving unit 202b, an air volume calculating unit 202c, a wind load calculating unit 202d, a route searching unit 202e, a route information generating unit 202f, and route information. A transmission unit 202g is provided.

  Among these, the current position information receiving unit 202a is current position information receiving means for receiving the current position information of the user of the terminal device 100 transmitted from the terminal device 100.

  The route search condition receiving unit 202b is route search condition receiving means for receiving a route search condition transmitted from the terminal device 100 and including at least a departure place and a destination. The route search condition receiving unit 202b receives a reroute search request transmitted from the terminal device 100 in a predetermined case (such as every fixed period) such as when the wind direction / wind speed information or wind load information is updated. May be. Note that the route search condition receiving unit 202b may acquire the current location based on the current location information of the terminal device 100 received by the current location information receiving unit 202a as the starting point of the route search condition. For example, when a reroute search request transmitted from the terminal device 100 is received, the route search condition receiving unit 202b resets the current position based on the latest current position information as the starting point of the route search condition. Also good.

  The air volume calculation unit 202c is an air volume calculation unit that analyzes the wind volume component of the road network data based on the road link based on the wind direction wind speed information. More specifically, the air volume calculation unit 202c may calculate the air volume in the traveling direction and the air volume in the vertical direction of the traveling direction based on the wind direction wind speed information for each road link stored in the wind direction wind speed database 206c. . That is, the air volume calculation unit 202c decomposes the air volume vector represented by the wind direction and the wind speed based on the wind direction wind speed information into an air volume component in the traveling direction along the road link and an air volume component in a direction perpendicular to the traveling direction, A wind load is calculated based on each air volume component. For example, when the wind direction blows at a wind speed of 1 m / s from the northeast with respect to the road link with the northward direction of travel, the wind is inclined at 45 ° with respect to the direction of travel and the vertical direction, so a headwind of 1 / √2 m / s Then, the air volume component can be decomposed into a crosswind of 1 / √2 m / s. The wind direction and wind speed information used for each road link matches the wind direction and wind speed information in the travel area stored in the network database 206a. However, the present invention is not limited to this, and the following processing is performed to determine the wind direction and wind speed information in the travel area. It is also possible to use different wind direction information.

  For example, as a rule of thumb, winds are strong on the coastline, and building winds often blow in valleys of high-rise buildings. In addition, as with paved roads and gravel roads, the degree of wind influence varies depending on the road width (width), road type, and the like. Therefore, in consideration of these circumstances, the air volume calculation unit 202c is configured to use map data (such as shape data of a feature such as a building or a coastline) stored in the map database 206b and / or a network database around the road link. The road links may be weighted based on the road network data stored in 206a (information such as width and road type). The weighting may be determined in advance in association with each road link in the network database 206a, or may be calculated each time by the air volume calculation unit 202c. As a weighting method, for example, the wind speed is multiplied by a predetermined value (for example, 1.5 times) for road links along the coastline, or the wind speed is set to a predetermined value (for example, 1.5 m for road links in areas where buildings are densely packed). / S) may be added. By the above processing, the air volume calculation unit 202c can be made more realistic by combining weight information in consideration of topography and the like based on map data in addition to weather information such as wind direction and wind speed information provided by the Japan Meteorological Agency or a private weather company. It is possible to use wind direction and wind speed information that is close to road conditions (more close to the user's sensation).

  The wind load calculation unit 202d is a wind load information generation unit that calculates wind load for each road link and generates wind load information. A combination of the above-described air volume calculation unit 202c and the wind load calculation unit 202d corresponds to the wind load calculation unit described in the claims. For example, the wind load calculation unit 202d may calculate the wind load based on a wind volume component (such as a head wind and a cross wind component) based on the road link calculated by the wind volume calculation unit 202c. More specifically, the wind load calculating unit 202d may generate wind load information by calculating the wind load based on the air volume component calculated by the air volume calculating unit 202c. As a wind load calculation method, (1) a method of adding a wind cost as an additional cost (relative to the original link cost) according to the wind direction and the air volume, or (2) a ratio according to the wind direction and the air volume (degree of cost increase / decrease) And a method of increasing or decreasing the original link cost according to the ratio (multiplying the link cost by the cost increase / decrease degree), or (3) a wind load database that calculates and lists the wind cost and the cost increase / decrease degree in advance. A method of calculating the wind load with reference to 206d may be adopted. For example, the wind load calculation unit 202d may acquire the wind load information by searching the corresponding wind load from the wind load database 206d described above with reference to FIG. 3 based on the wind speed and the wind direction with respect to the road link. .

Also, the air volume calculation unit 202c and the wind load calculation unit 202d are close to the current location when the wind direction and wind speed information stored in the wind direction and wind speed database 206c includes not only the predicted value but also the actual measurement value (actual observation information). In the range, the wind load may be calculated using the actually measured value, and in the range far from the current location, the wind load may be calculated using the predicted value at the arrival time. In addition, the air volume calculation unit 202c and the wind load calculation unit 202d may calculate the wind load of each road link before the route search by the route search unit 202e is performed. The wind load may be calculated for the route, or the wind load may be calculated for the route that is the route search result by the route search unit 202e. The air volume calculation unit 202c and the wind load calculation unit 202d are not limited to calculating the wind load for each link, and the route acquired by the route search unit 202e is divided according to time, distance, and the like. For each section of the route, the wind load may be calculated based on the corresponding time zone and local wind direction wind speed information. In addition, the air volume calculation unit 202c and the wind load calculation unit 202d are arranged around the route such as the air volume and the wind load at each departure time at a predetermined time interval (for example, every hour) for the route acquired by the route search unit 202e. Information regarding wind on the route may be calculated based on wind direction and wind speed information. In addition, the air volume calculation unit 202c and the wind load calculation unit 202d, for a plurality of routes acquired by the route search unit 202e, provide information on the wind around the route, such as the air volume and the wind load in each route, or the wind direction on the route. You may calculate based on wind speed information. The calculation method of the wind load is not limited to the calculation by the server device 200 as described above, and by receiving wind load information calculated in advance from the external device 600 (a server such as a private weather company), the wind load is calculated. A load may be acquired. The wind load calculation unit 202d may store the generated wind load information in the wind load database 206d. Note that the following relational expression holds between the original link cost, the cost increase / decrease degree, and the wind consideration cost.
(Original link cost) x (Cost change) = (Wind consideration cost)

  Further, the route search unit 202e searches for and acquires a route from the departure point to the destination that satisfies the route search condition received by the route search condition reception unit 202b based on the road network data stored in the network database 206a. Route search means. Here, the route searched by the route search unit 202e includes, for example, a combination of road links indicating the route. Then, the route search unit 202e acquires an appropriate route based on the link cost of the road link indicating the route. For example, the route search unit 202e calculates one or a plurality of routes so that the (original) link cost such as time, distance, and fuel cost becomes as small as possible.

  When the travel load due to wind is considered in the present embodiment, the route search unit 202e is generated by the wind load calculation unit 202d or stored in the wind load database 206d in addition to the road network data, or A route satisfying the route search condition is acquired based on the wind load information received from the external device 600. For example, the route search unit 202e may search for a route that satisfies the route search condition by adding wind load information to the original link cost of the road network data. As an example, when the wind load information indicates the wind cost, the route search unit 202e adds the wind cost to the original link cost (that is, calculates the wind consideration cost to minimize the wind consideration cost). ) You may search for a route. Further, when the wind load information indicates the cost increase / decrease degree, the route search unit 202e may search for a route by multiplying the original link cost by the cost increase / decrease degree. When the wind consideration cost associated with the road link is stored in advance in the network database 206a, the route search unit 202e may perform a route search based on the wind consideration cost stored in the network database 206a. Note that the route search unit 202e re-establishes a route from the departure point to the destination that satisfies the route search condition when the wind load information is updated, such as when a re-route search request transmitted from the terminal device 100 is received. You may search.

  In the above description, the case where the wind load information is added to the link cost of the road network data used for the route search by the route search unit 202e has been described as an example. However, the present embodiment is not limited to this. The route search unit 202e may perform a route search based on the wind load information independently without adding the wind load information to the link cost. For example, the route search unit 202e may search for a route satisfying the route search condition by excluding a link whose wind load based on the wind load information is a predetermined value or more from the link group in the road network data. On the other hand, after searching for a route that satisfies the route search condition based on the road network data, the route search unit 202e includes a link in which the wind load based on the wind load information is equal to or greater than a predetermined value. It may be excluded.

  As an example, the route searching unit 202e may search for a bicycle route when the moving means is a bicycle, based on road network data and wind load information. For example, the route search unit 202e searches for a bicycle route that satisfies the route search condition based on road network data for a bicycle (for example, network data including a bicycle exclusive road or a one-way road on which a bicycle can run backward). May be. In addition, the route search unit 202e may perform a route search for a bicycle in consideration of the speed of the bicycle and the cost for the gradient (slope).

  The route information generation unit 202f is a route information generation unit that generates route information indicating the route acquired by the route search unit 202e. Here, in addition to the route information acquired by the route search unit 202e, the route information generation unit 202f adds information about the wind around the route calculated by the air volume calculation unit 202c and the wind load calculation unit 202d. Route information may be generated. In addition to the route information acquired by the route search unit 202e, the route information generation unit 202f also includes information on wind such as wind load on the route calculated by the air volume calculation unit 202c and the wind load calculation unit 202d. May be added (superimposed display) on the map around the route stored in the map database 206b. The path information generation unit 202f may generate path information further including information based on a plurality of air volumes or wind loads calculated by the air volume calculation unit 202c and the wind load calculation unit 202d. For example, when the air volume and the wind load are calculated for each departure time, the route information generation unit 202f may create path information that indicates that the air volume and the wind load for each departure time can be compared. The route information generation unit 202f converts the air volume calculated by the air volume calculation unit 202c and the wind load calculation unit 202d, the wind load, or the travel load calculated based on the wind load into an index such as calorie consumption and the route. Information may be generated. The route information generation unit 202f may generate route information based on the route acquired without considering the wind by the route search unit 202e and the wind load information calculated by the wind load calculation unit 202d. . For example, the route information generation unit 202f may generate route information to be presented with priority according to the calculated wind load for a plurality of routes acquired without considering the wind by the route search unit 202e. . Further, the route information generation unit 202f may create route information indicating that the air volume and wind load for each of a plurality of routes can be compared. Further, the route information created by the route information generation unit 202f may be an expression of the air volume or wind load with a graph, a symbol on a map, a numerical value, or the like. Further, the route information generation unit 202f, when the calculated air volume or wind load on the route is larger than a predetermined value, prompts to move by another means of transportation, prompts to change the departure time, or bypasses You may create the route information which displays the prompt etc. with a character, a symbol, etc.

  The route information transmitting unit 202g is a route information transmitting unit that transmits the route information created by the route information generating unit 202f to the terminal device 100.

[Configuration of Terminal Device 100]
In FIG. 1, the terminal device 100 transmits a route search condition to the server device 200, receives route information transmitted from the server device 200, and outputs the received route information to the output unit 114. Have The terminal device 100 is, for example, a commercially available information processing device such as a desktop or laptop personal computer, a mobile terminal device such as a mobile phone, PHS, or PDA, and a navigation terminal that performs travel route guidance or the like. . Here, the terminal device 100 may be equipped with an Internet browser or the like, or may be equipped with a route guidance application or a transfer guidance application. Further, the terminal device 100 includes a position acquisition unit 112 having a GPS function, an IMES function, and the like so that the current position can be acquired in real time. The terminal device 100 includes at least an output unit 114, an input unit 116, and a control unit 102. Here, the output unit 114 displays timetable information received from the server device 200 in addition to display means for displaying a display screen such as display guidance data (for example, a display or a monitor including liquid crystal or organic EL). Audio output means (for example, a speaker or the like) for outputting as audio may be used. The input unit 116 may be, for example, a key input unit, a touch panel, a keyboard, a microphone, or the like. The input / output control interface unit 108 controls the position acquisition unit 112, the output unit 114, the input unit 116, 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 terminal device 100 enters the communicable range, the terminal 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 location acquisition unit 112 may receive wireless LAN signals and acquire access point identification information. Then, 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 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 detects, for example, the acceleration information of the terminal device 100 detected by the acceleration sensor of the position acquisition unit 112, the direction information such as the traveling direction of the terminal device 100 detected by the direction sensor, and the distance sensor. Position information indicating the current position of the user of the terminal device 100 may be acquired based on the distance information and the map data. Here, a geomagnetic sensor that detects the absolute traveling direction of the terminal device 100 and an optical gyro that detects the relative traveling direction of the terminal 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.

  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 terminal 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 server device 200 or the like via a communication line.

  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 includes a current position information acquisition unit 102a, a route search condition transmission unit 102b, a route information reception unit 102c, and a route information output unit 102d in terms of functional concept.

  Among these, the current position information acquisition unit 102a is current position information acquisition means for acquiring the current position information of the user of the terminal device 100. Here, the current position information acquisition unit 102a may acquire the current position information of the user of the terminal device 100 every predetermined period (for example, every second). Here, the current position information acquisition unit 102a may transmit the acquired current position information to the server device 200 periodically or every update. In addition, the current position information acquisition unit 102 a may acquire the position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 112 as the current position information of the user of the terminal device 100. Furthermore, the orientation information such as the traveling direction of the terminal device 100 detected by the orientation sensor of the position acquisition unit 112 and the acceleration information of the terminal device 100 detected by the acceleration sensor of the position acquisition unit 112 are used. May be acquired as the current position information of the person. In addition, the current position information acquisition unit 102a 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 terminal 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 designates on the display screen of the map data displayed on the output unit 114 to the user via the input unit 116 (for example, designation operation on the touch panel type display unit, etc. ) Coordinates may be acquired as the current position information of the user of the terminal device 100. Furthermore, the orientation information specified on the display screen of the map data displayed on the output unit 114 by the user via the input unit 116 may be acquired as the current position information of the user of the terminal device 100. Here, the current position information acquisition unit 102a may acquire the date and time information of acquiring the current position information together with the current position information of the user.

  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 server device 200. Here, the departure place may be the current position of the user of the terminal device 100 based on the current position information acquired by the current position information acquisition unit 102a. The route search condition may further include a departure time or an arrival time. Here, the departure time may be the current time. Further, the route search condition may further include a transit point and a transit time. In addition, the route search condition transmission unit 102b may control the user to input the route search condition via the input unit 116, and may transmit the route search condition input by the user to the server device 200.

  The route information receiving unit 102 c is route information receiving means for receiving route information transmitted from the server device 200.

  The route information output unit 102d is route information display means for outputting the route information received by the route information receiving unit 102c to the output unit 114. For example, the route information output unit 102d may cause the route information to be displayed on the output unit 114 such as a monitor, and may output sound to a speaker or the like according to the route information.

  Above, description of an example of a structure of the navigation system in this embodiment is finished.

[Navigation system processing]
Next, an example of processing of the navigation system according to the present embodiment configured as described above will be described in detail with reference to FIGS. FIG. 4 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment.

  As shown in FIG. 4, first, the route search condition transmission unit 102b of the terminal device 100 causes the user to set a route search condition including at least a departure place and a destination via the input unit 116 (step SA-1). . Here, the departure place may be the current position of the user of the terminal device 100 based on the current position information acquired by the current position information acquisition unit 102a. Note that the route search condition transmission unit 102b may allow the user to set whether or not to consider wind as the route search condition. Here, FIG. 5 is a diagram illustrating an example of a route search condition setting screen displayed on the output unit 114 when the moving means is a bicycle under the control of the route search condition transmission unit 102b.

  As an example, as shown in FIG. 5, as a route search condition for bicycles, priority is given to a bicycle exclusive route, whether to give priority to a bicycle-only road, whether to give priority to a route with less headwind, and give priority to a route with less uphill. Whether or not to prioritize a route with a small amount of vehicle traffic can be selected with a check box. Among these, when the user turns on the check box “less headwind”, a route search considering the wind is performed in step SA-5, which will be described later, and when the check box is turned off, step SA, which will be described later. At -6, a route search that does not take into account the wind described later is performed. In addition, as a bicycle setting, you can also select the approximate speed of the user's bicycle (“fast”, “standard”, “slow”, etc.). It is also possible to select one of the routes having a good view with a radio button. For example, if “distance is short” is selected, a route search using the distance as a link cost is performed in step SA-6. If “less load” is selected, the wind load is mainly linked in step SA-5. When a route search is performed with the cost selected and “good view” is selected, a route with good view is given priority based on map data or the like.

  Then, the route search condition transmission unit 102b of the terminal device 100 transmits the set route search condition to the server device 200 (step SA-2).

  Then, the route search condition receiving unit 202b of the server device 200 receives the route search condition transmitted from the terminal device 100 and including at least the departure place and the destination (step SA-3).

  Then, the route search unit 202e of the server device 200 determines whether to perform a route search considering wind or a route search not considering wind (step SA-4). For example, the route search unit 202e follows the route search condition if it is set whether or not to consider wind. Note that the server device 200 may perform processing so as to always perform a route search in consideration of wind without performing the step SA-4.

  When a route search that does not consider wind is not performed (step SA-4, No), the route search unit 202e of the server device 200 uses the route search condition reception unit 202b based on the road network data stored in the network database 206a. A route from the departure point to the destination that satisfies the received route search condition is searched (step SA-6). Here, the route search unit 202e calculates a route based on link costs other than wind load such as distance and time. For example, the route search unit 202e calculates one or a plurality of routes so that an integrated value of link costs such as time and distance of road links constituting the candidate route becomes as small as possible.

  On the other hand, when performing a route search considering wind (step SA-4, Yes), the route search unit 202e of the server device 200 is based on the road network data stored in the network database 206a and the wind load information. A route search is performed (step SA-5). Note that the wind load information may be generated by the wind load calculation unit 202d, stored in advance in the wind load database 206d, or received from the external device 600. As an example, the route search unit 202e searches for a route that satisfies the route search condition by adding wind load information to the original link cost such as time and distance when the wind is not considered. For example, when the wind load information indicates the wind cost, the route search unit 202e adds the wind cost to the original link cost (that is, integrates the wind consideration cost to minimize the wind consideration cost). A route may be searched. When the wind load information indicates the cost increase / decrease degree, the route search unit 202e may search for a route by multiplying the original link cost by the cost increase / decrease degree. When the wind consideration cost associated with the road link is stored in advance in the network database 206a, the route search unit 202e may perform a route search based on the wind consideration cost stored in the network database 206a. .

  Here, an example of the air volume calculation process and the wind load calculation process for calculating the wind load information used in Step SA-5 will be described below with reference to FIG. Here, FIG. 6 is a flowchart illustrating an example of an air volume calculation process and a wind load calculation process for performing a route search in consideration of wind. The air volume calculation process and / or the wind load calculation process may be executed along with the route search in step SA-5, and is calculated in advance for each road link and the calculation result is stored in the wind load database 206d or the like. It may be left.

  As shown in FIG. 6, first, the air volume calculation unit 202c of the server device 200 acquires wind direction and wind speed information used to calculate the air volume for each road link (step SB-1). For example, the air volume calculation unit 202c may acquire wind direction and wind speed information for each road link stored in the wind direction and wind speed database 206c, and receives the wind direction and wind speed information from an external device 600 (such as a server of the Meteorological Agency or a private weather company). May be. Here, the air volume calculation unit 202c may perform weighting instead of using the acquired wind direction wind speed information as it is for calculating the air volume. For example, as a rule of thumb, the coastline is windy, the building wind blows in the valleys of high-rise buildings, and the degree of wind influence varies depending on the road width (width), road type, and the like. For this reason, the air volume calculation unit 202c has map data (such as shape data of features such as buildings and coastlines) stored in the map database 206b and / or road network data stored in the network database 206a around the road link. The road links may be weighted based on (width, road type, etc. information). The weighting may be determined in advance in association with each road link in the network database 206a, or may be calculated each time by the air volume calculation unit 202c. As a weighting method, for example, the wind speed is multiplied by a predetermined value (for example, 1.5 times) for road links along the coastline, or the wind speed is set to a predetermined value (for example, 1.5 m for road links in areas where buildings are densely packed). / S) may be added. By this weighting process, the wind direction wind speed information provided by the Japan Meteorological Agency or a private weather company can be changed to wind direction wind speed information that is closer to the actual road condition (more close to the user's experience).

  And the air volume calculation part 202c of the server apparatus 200 analyzes the air volume component of the wind on the basis of a road link based on the acquired wind direction wind speed information (step SB-2). More specifically, the air volume calculation unit 202c calls the wind direction and the air volume vector represented by the wind speed based on the wind direction wind speed information as the air volume component in the traveling direction along the road link (hereinafter, “link additional wind volume”). ) And an airflow component in a direction perpendicular to the traveling direction (hereinafter referred to as “link cross airflow”). Here, FIG. 7 is a diagram schematically illustrating a method of calculating the air volume component based on the wind direction and wind speed information by the air volume calculating unit 202c.

As shown in FIG. 7, the air volume calculation unit 202c is based on the wind direction information (direction information and the like) included in the wind speed and wind direction information acquired for each link, and the wind direction angle θ (0 ° ≦ θ ≦ 180 °). Then, the air volume calculating unit 202c calculates the link additional air volume and the link lateral air volume by the following formulas 1 and 2 based on the wind speed information and the wind direction angle θ with respect to the traveling direction.
Link additional wind volume = wind speed (m / s) × cos θ (Formula 1)
Link crosswind volume = wind speed (m / s) x sinθ (Equation 2)

Here, the case where the link air volume of 10:30 is calculated | required about the link 61 which exists in the Shinjuku area and is located in the north-south direction is illustrated. Referring to the wind direction and wind speed database 206c shown in FIG. 2 described above, the wind direction in the Shinjuku area is the corresponding time zone from 10:00 to 11:00, and the wind in the southwest is 8 m / s. As shown in FIG. 7, when the traveling direction of the link 61 is northward, when traveling at 10:30 toward the north, the traveling direction is based on the north, which is the direction of the traveling direction affected by the wind. The wind direction angle θ with respect to is 45 °. Accordingly, the air volume calculation unit 202c can obtain the link follow wind volume and the link cross wind volume when traveling on the link 61 toward the north using the above-described formulas 1 and 2, respectively, as follows.
Link follower air volume: 8 (m / s) × cos 45 ° = 5.66
Link crosswind volume: 8 (m / s) x sin45 ° = 5.66

  Here, the control unit 202 of the server apparatus 200 calculates the link air volume (link follower air volume and link side air volume), but the control unit 202 of the server apparatus 200 uses the link air volume information in which the link air volume has been calculated in advance as external information. The link air volume information may be received by receiving from the device 600 (a server such as the Meteorological Agency or a private weather company). The calculation method is not limited to the above.

  Returning to FIG. 6 again, the wind load calculation unit 202d of the server device 200 calculates the wind load for each road link based on the link air volume and generates wind load information (step SB-3). For example, the wind load calculating unit 202d may calculate the wind load based on the link air volume (the link additional air volume and the link cross air volume) calculated by the air volume calculating unit 202c. Here, as a wind load calculation method by the wind load calculation unit 202d, (1) calculation of wind cost, (2) calculation of cost increase / decrease, and (3) calculation by wind load database will be described below.

(1) Calculation of wind cost In order to calculate the wind consideration cost considering wind, the wind load calculation unit 202d multiplies the link air volume calculated by the air volume calculation unit 202c by a predetermined constant to thereby calculate the wind cost. It is a method to ask for. When the link additional wind cost is positive (0 ° ≦ θ <90 °), it means that the additional wind is blowing in the traveling direction and the traveling load is reduced. On the contrary, when the link tail wind cost is negative (90 ° <θ ≦ 180 °), it means that the wind is opposite to the traveling direction and the traveling load becomes high. In the case of θ = 90 °, since the wind from the side (only the cross wind) is received, the link tail wind cost is 0, which means that it is not affected by the tail wind or the head wind. Further, when the cross wind is received, it is necessary to consider the balance of the vehicle body, and it becomes difficult for the vehicle to travel more than usual. Therefore, when the link cross wind cost is calculated, it means that the travel load becomes high.

As shown in Equation 3 and Equation 4 below, the wind load calculation unit 202d calculates the link tailwind cost and the link sidewind cost by multiplying the link tailwind air volume and the link side wind air volume by predetermined constants, respectively. At this time, the value of the constant may be arbitrarily determined by the user, or the user may be able to change it according to the situation. For example, in the route search condition setting screen illustrated in FIG. 5 described above, when the check box “less headwind” is set to ON by the user, the constant α for the link following wind amount may be set large. At the same time, the constant β may be varied.
Link tailwind cost (minutes) = Link tailwind volume x constant α (Equation 3)
Link crosswind cost (minutes) = Link crosswind volume x constant β (Expression 4)

Then, the wind load calculation unit 202d calculates the wind cost in consideration of the relationship with the travel load. For example, the wind load calculation unit 202d performs a process of subtracting the link additional wind cost and adding the link cross wind cost based on the following Equation 5.
Wind cost (minutes) = Link crosswind cost-Link tailwind cost (Formula 5)

In the example of the link air volume calculation process described above, when the constant α is 0.25 and the constant β is 0.13, the wind load calculation unit 202d calculates the air volume calculated by the air volume calculation unit 202c (the link additional air volume). On the basis of both 5.66) and the link crosswind air volume, the link tailwind cost and the link crosswind cost can be obtained as follows.
Link tailwinding cost: 5.66 x 0.25 = 1.42 (minutes)
Link crosswind cost: 5.66 x 0.13 = 0.74 (min)

Therefore, since the wind load calculation unit 202d can obtain the wind cost as follows, when traveling on the link 61 toward the north at 10:30, it is more than normal (when the wind is not considered). It will be shortened by 0.68 minutes.
Wind cost: 0.74-1.42 = -0.68 (min)

  In the case of a gentle breeze, the influence of the wind is considered to be small. Therefore, a predetermined threshold value is set, and when the link additional wind volume and the link cross wind volume are less than the threshold value, the above calculation processing is not performed and the wind cost is not calculated. May not be added to the original link cost. In this case, the threshold values for the tail wind and the cross wind may be appropriate values, and different values may be set. Further, since it is dangerous when the crosswind is strong, a predetermined threshold value may be provided, and if the link crosswind airflow is equal to or greater than the threshold value, additional cost may be added or traffic may be prohibited. . In calculating the wind cost, the wind cost may be calculated based on both the link additional wind cost and the link cross wind cost, or may be calculated using only one of them.

(2) Calculation of cost increase / decrease degree The wind load calculation unit 202d may calculate the wind consideration cost by multiplying the original link cost by a certain ratio according to the link air volume level. Thereby, the travel cost (wind consideration cost) by a wind can be calculated in consideration of the length of the original link.

The calculation method of (2) is the same as Equations 3 to 5 of (1), but as shown in Equations 6 to 8 below, the value to be calculated is not an additional cost with respect to the original cost. The difference is that it is the rate of increase or decrease of
Increase / decrease degree of tailwind cost (%) = link tailwind volume × constant γ
Crosswind cost increase / decrease (%) = Link crosswind volume x constant δ (Expression 7)
Cost increase / decrease (%) = Crosswind cost increase / decrease-Additional wind cost increase / decrease (Equation 8)

In the example of the link air volume calculation process described above, when the constant γ is 1.5 and the constant δ is 0.5, the wind load calculation unit 202d is calculated by the air volume calculation unit 202c according to Equation 6 and Equation 7. On the basis of the air volume (both the link wind volume and the link cross wind volume are 5.66), it is possible to obtain the following wind cost increase / decrease degree and the cross wind cost increase / decrease degree as follows.
Increase / decrease in tailwind cost: 5.66 x 1.5 = 8.49 (%)
Crosswind cost increase / decrease: 5.66 x 0.5 = 2.83 (%)

And the wind load calculation part 202d calculates a cost increase / decrease degree as follows according to Formula 8.
Cost increase / decrease: 2.83-8.49 = -5.66 (%)

  That is, in this example, when traveling on the link 61 toward the north at 10:30, the cost of 5.66% is subtracted from the normal (when the wind is not considered). In addition, about the setting of the threshold value in a gentle breeze or a strong wind, and the combination of a follow wind and a cross wind, it can set arbitrarily similarly to (1).

(3) Calculation by Wind Load Database When calculating the wind load, a list of predetermined wind costs and cost increases / decreases is stored in the wind load database 206d, and the wind load calculation unit 202d acquires the corresponding wind load. You may make it do. This eliminates the need to calculate the wind load for each road search in the area.

  As illustrated with reference to FIG. 3 described above, in the wind load database 206d, the wind load is determined in advance by the wind speed level and the wind direction that are classified by the wind speed for each link. The determined wind load may be the cost increase / decrease degree described in (2) in addition to the wind cost described in (1). The level classification may be performed according to the wind speed or may be performed by another method. In the level classification based on the wind speed, for example, a wind class based on the Japan Meteorological Agency wind class table may be used, and for example, it may be set finely in an arbitrary section such as every 0.5 m / s. It is not necessary for all links to be leveled in the same unit, and the leveling may be changed according to road conditions such as coastline and flat land.

  As described above, as described above in (1) to (3), the example of the process for calculating the wind load inside the server apparatus 200 has been described. The wind load information may be acquired by receiving from a server such as a company. The calculation method is not limited to the above, and other known methods can be used for the air volume calculation unit 202c and the wind load calculation unit 202d.

  Returning to FIG. 6 again, based on the wind load information calculated as described above, the route search unit 202e performs a route search in consideration of the travel load caused by the wind (step SB-4). In the process illustrated in FIG. 6, the example in which the air volume calculation process and the wind load calculation process are performed before the route search process has been described. However, the air volume calculation process is performed simultaneously with the route search or after the route search without considering the wind. Or wind load calculation processing may be executed. For example, the air volume calculation unit 202c and the wind load calculation unit 202d, for a plurality of routes acquired as a result of the route search that does not consider wind by the route search unit 202e, around the route such as the air volume and the wind load in each route, or the route Information on the wind at the top may be calculated based on the wind direction and wind speed information. In addition, the air volume calculation unit 202c and the wind load calculation unit 202d are arranged around the route such as the air volume and the wind load at each departure time at a predetermined time interval (for example, every hour) for the route acquired by the route search unit 202e Information regarding wind on the route may be calculated based on wind direction and wind speed information. The air volume calculation unit 202c and the wind load calculation unit 202d are not limited to calculating the wind load for each link, but divide the route acquired by the route search unit 202e according to time, distance, and the like, and For each section, the wind load may be calculated based on the corresponding time zone and local wind direction wind speed information. This is the end of the description of the specific example of the route search process (step SA-5) in consideration of the wind.

  Returning to FIG. 4 again, the route information generation unit 202f of the server device 200 generates route information indicating the route acquired as a result of the route search by the route search unit 202e (step SA-7). Here, in addition to the information on the route acquired by the route search unit 202e, the route information generation unit 202f includes the periphery of the route calculated by the air volume calculation unit 202c and the wind load calculation unit 202d in Step SA-5. Route information to which information related to the wind at is added may be generated. In addition to the route information acquired by the route search unit 202e, the route information generation unit 202f also includes information on wind such as wind load on the route calculated by the air volume calculation unit 202c and the wind load calculation unit 202d. May be added (superimposed display) on the map around the route stored in the map database 206b. Here, FIG. 8 is a diagram illustrating an example of a display screen based on route information generated by the route information generation unit 202f. In FIG. 8, a route drawn with a thick line indicates a guide route.

  The route information generated by the route information generation unit 202f includes information on the route acquired by the route search unit 202e, map data around the route stored in the map database 206b, and an air volume calculation unit 202c or a wind load calculation unit. It is conceivable to display wind load information on the route calculated by 202d or information on the wind (hereinafter referred to as “wind load information etc.”). As an example, as illustrated in FIG. 8, the route information generation unit 202 f creates route information to be displayed by adding wind load information along a corresponding route when information indicating the route is superimposed on the map. To do. Note that the display mode (display color, display size, line thickness, etc.) of the wind load information added along the route may be changed depending on the strength of the wind, the height of the wind load, and the like. Further, the map data, the information indicating the route, the wind load information, and the like may be displayed individually, or the route may be superimposed on the map data so as to be one display. When the route is superimposed on the map, the route information generation unit 202f displays the map and the route display mode according to the wind strength and the wind load height, such as changing the display color of the road with a high wind load. The route information may be created by changing (display color, display size, line thickness, etc.).

  The path information generation unit 202f may generate path information further including information based on a plurality of air volumes or wind loads calculated by the air volume calculation unit 202c and the wind load calculation unit 202d. For example, when the air volume and the wind load are calculated for each departure time, the route information generation unit 202f may create path information that indicates that the air volume and the wind load for each departure time can be compared. Here, FIG. 9 is a diagram illustrating an example of route information that is generated by the route information generation unit 202f and that can be compared with the wind load at each departure time.

  As a mode of the route information, a method of displaying so as to be able to compare wind loads in a plurality of routes and time zones is conceivable. As shown in FIG. 9 as an example, the route information generation unit 202f displays the headwind according to the departure time. Route information for displaying the strength in a graph may be created. Since the wind load which fluctuates according to the time zone can be compared, when a strong wind forecast is issued, the user can select a time zone in which the wind has been reduced to some extent and depart. The route for displaying the head wind may be the entire route or only a part of the route (a section that is easily affected by the wind). The displayed headwind strength may be calculated from the maximum headwind strength on the route, or may be calculated by summing up all headwind components on the route, or the headwind for the entire route. The total may be calculated based on the component and the tailwind component. When calculating the strength of the head wind, the link length may be taken into consideration. The comparison method may be a case of comparing a plurality of routes, or may be a comparison for each specific time zone. Further, the route information created by the route information generation unit 202f may be an expression of the air volume or the wind load by a symbol, a numerical value, or the like on a map.

  Further, the route information generation unit 202f may create route information indicating that the air volume and wind load for each of a plurality of routes can be compared. The route information generation unit 202f converts the air volume calculated by the air volume calculation unit 202c and the wind load calculation unit 202d, the wind load, or the travel load calculated based on the wind load into an index such as calorie consumption and the route. Information may be generated. Here, FIG. 10 is a diagram illustrating an example of route information that is generated by the route information generation unit 202f and that indicates the calorie consumption by route that can be compared.

  As a mode of the route information, a method of replacing the driving load with an index such as calories burned and displaying is conceivable. As shown in FIG. 10 as an example, the route information generating unit 202f displays each driving load on a plurality of routes. You may generate | occur | produce the route information displayed by calorie consumption. A route indicated by a thick line in the figure is a route (route [1]) selected as a route with less calorie consumption. As an example of how to calculate calorie consumption, calculate the difference compared to when there is no wind, and define calorie consumption per minute calculated as cost for each gender and transportation method. It may be calculated based on that. Further, the target travel load may be a travel load that also considers road conditions such as a gradient, or only a wind load. In addition to the calorie consumption, the index to be converted may be any index that can image the running load such as kinetic energy, or may be converted into a unique index. In addition to this, wind information may be indicated by symbols or characters on the route displayed on the map, and wind direction wind speed information and wind load information may be included in the route information displayed in front of the map or in text. Information related to the wind may be added. Further, the route information generation unit 202f, when the calculated air volume or wind load on the route is larger than a predetermined value, prompts to move by another means of transportation, prompts to change the departure time, or bypasses You may create the route information which displays the prompt etc. with a character, a symbol, etc. As a result, the user can be alerted with respect to a portion that should be careful of the wind during traveling (such as a road link to which a wind load of a predetermined value or more is added).

  The route information generation unit 202f may generate route information based on the route acquired without considering the wind by the route search unit 202e and the wind load information calculated by the wind load calculation unit 202d. . For example, the route information generation unit 202f may generate route information to be presented with priority according to the calculated wind load for a plurality of routes acquired without considering the wind by the route search unit 202e. .

  Returning to FIG. 4 again, the route information transmitting unit 202g of the server device 200 transmits the route information created by the route information generating unit 202f as described above in step SA-7 to the terminal device 100 (step SA-8). .

  Then, the route information receiving unit 102c of the terminal device 100 receives the route information transmitted from the server device 200 (step SA-9).

  Then, the route information output unit 102d of the terminal device 100 outputs the route information received by the route information receiving unit 102c to the output unit 114 (Step SA-10). Here, when one route is selected from a plurality of routes through the input unit 116 by the user, the route information output unit 102d may perform route guidance according to the selected route. For example, the route information output unit 102d causes the output unit 114 to display a display screen in which the route and the current position information acquired by the current position information acquisition unit 102a are superimposed on the map data included in the route information. Also good.

  In the present embodiment, control may be performed so that the processes of Step SA-1 to Step SA-10 described above are repeated. For example, the route search condition transmission unit 102b of the terminal device 100 transmits a reroute search request or the like to the server device 200, for example, at predetermined intervals (for example, 5 minutes), for example. You may control so that the process of -10 may be repeated. Further, when the control unit 202 of the server device 200 detects the update of the wind direction and wind speed information or the update of the wind load information (when new weather information is received from the external device 600 or the like, or the latest measured value is obtained. In other cases, the process of step SA-4 to step SA-8 may be repeated at regular intervals. Further, the comparison determination result may be transmitted to the terminal device 100 and the process may be determined by the user's selection. The route information generation unit 202f of the server device 200 is based on the updated wind load information. When it is determined that the route has an influence greater than or equal to a predetermined value (change in wind load information), the update of the wind load information is notified to the terminal device 100 to determine whether or not to perform a reroute search. The user may be allowed to select via the input unit 116. And the server apparatus 200 may perform a reroute search by the route search part 202e, when the reroute search request | requirement from the terminal device 100 is received. In these cases, the starting point of the route search condition may be a position based on the latest current position information received by the current position information receiving unit 202a.

  Further, the route information generation unit 202f of the server device 200 may transmit the route information indicating the re-search result to the terminal device 100 as it is, and compares the route before the re-search with the route after the re-search, You may make it perform the process according to the determination result. For example, when the wind load information is updated, the route is not necessarily changed greatly. Therefore, the control unit 202 of the server device 200 determines the degree of influence by the update of the wind load information and the degree of change of the route separately. You may judge. Then, as a result of comparing the routes before and after the re-search by the route information generation unit 202f, the route information is generated and the updated route information is transmitted to the terminal device 100 only when it is determined that there is a predetermined change or more. You may do it. Further, when it is determined that there is no change in the route beyond the predetermined value, the server device 200 may notify the terminal device 100 to that effect, or may not perform any processing. As described above, by performing the re-route search process, it is possible to avoid a route that is susceptible to wind based on the latest information even when the wind direction and wind speed information changes during traveling.

  The above is an example of the processing of the navigation system in the first embodiment.

[Second Embodiment]
Next, a second embodiment (navigation device 400 (stand-alone type)) of the present invention will be described below with reference to FIGS. 11 and 12. Here, FIG. 11 is a block diagram showing an example of the configuration of the navigation apparatus 400 according to the second embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  In the second embodiment, all functions are integrated into the navigation device 400, and a route from the departure point to the destination that satisfies the route search condition is acquired based on the road network data and the wind load information. Then, route information indicating the obtained route is generated, and the generated route information is displayed on the output unit 414. Thus, the second embodiment is different from the first embodiment in that the navigation device 400 is configured as a stand-alone type and performs processing alone.

[Configuration of the navigation device 400 (stand-alone type)]
First, an example of the configuration of the navigation device 400 (stand-alone type) in the second embodiment will be described below with reference to FIG.

  As illustrated in FIG. 11, the navigation device 400 according to the second embodiment of the present invention includes at least a position acquisition unit 412, an output unit 414, an input unit 416, a control unit 402, and a storage unit 406. Each unit of the navigation device 400 is communicably connected via an arbitrary communication path. For example, the navigation device 400 includes a commercially available information processing device such as a desktop or notebook personal computer, a portable terminal device such as a mobile phone, PHS, or PDA, and a PND (Portable Navigation Device) that performs travel route guidance and the like. ) And the like.

  11, each function of the input / output control interface unit 408, the communication control interface unit 404, the position acquisition unit 412, the output unit 414, and the input unit 416, the network 300, the position transmission device 500, and the external device 600 is illustrated. Since this is the same as in the first embodiment, a description thereof will be omitted. Further, each part of the storage unit 406 (network database 406a, map database 406b, wind direction wind speed database 406c, wind load database 406d, etc.) is also provided in each of the storage units 406 except that the navigation device 400 is provided instead of the server device 200. Since the function is the same as that of the first embodiment, description thereof is omitted.

  In addition, as for each part of the control unit 402 (current position information acquisition unit 402a to route information output unit 402g, etc.), the navigation device 400 of this embodiment is a stand-alone type, and the control unit 402 does not include each transmission / reception unit. Except for, each function is basically the same as the navigation system of the first embodiment.

  In FIG. 11, the control unit 402 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 402 performs the information processing for performing various processes with these programs. The control unit 402 is functionally conceptually configured as a current position information acquisition unit 402a, a route search condition setting unit 402b, an air volume calculation unit 402c, a wind load calculation unit 402d, a route search unit 402e, a route information generation unit 402f, and route information. An output unit 402g is provided. Among these, the functions of the current position information acquisition unit 402a, the air volume calculation unit 402c, the wind load calculation unit 402d, the route search unit 402e, the route information generation unit 402f, and the route information output unit 402g are the same as in the first embodiment. Therefore, the description is omitted.

  The route search condition setting unit 402b is route search condition setting means for setting a route search condition including at least a departure place and a destination. Here, the departure place may be the current position of the user of the navigation device 400 based on the current position information acquired by the current position information acquisition unit 402a. The route search condition may further include a departure time or an arrival time. Here, the departure time may be the current time. Further, the route search condition may further include a transit point and a transit time. Further, the route search condition setting unit 402b may control the user to input the route search condition via the input unit 416 and set the route search condition input by the user. Further, the route search condition setting unit 402b may set route search conditions stored in the storage unit 406 in advance.

  Above, description of an example of a structure of the navigation apparatus 400 in 2nd Embodiment is finished.

[Processing of navigation device 400 (stand-alone type)]
Next, an example of processing of the navigation device 400 according to the second embodiment configured as described above will be described in detail with reference to FIG. Here, FIG. 12 is a flowchart illustrating an example of processing of the navigation device 400 according to the second embodiment.

  As shown in FIG. 12, first, the route search condition setting unit 402b sets a route search condition including at least a departure place and a destination input by the user via the input unit 416 (step SC-1). Here, the departure place may be the current position of the user of the navigation device 400 based on the current position information acquired by the current position information acquisition unit 402a.

  Then, the air volume calculating unit 402c acquires wind direction and wind speed information used to calculate the air volume for each road link (step SC-2). For example, the air volume calculation unit 402c may acquire the wind direction and wind speed information for each road link stored in the wind direction and wind speed database 406c, and receives the wind direction and wind speed information from the external device 600 (such as a server of the Meteorological Agency or a private weather company). May be. Here, the air volume calculation unit 402c may perform weighting instead of using the acquired wind direction and wind speed information as it is to calculate the air volume, and map data (such as buildings and coastlines) stored in the map database 406b around the road link. ) And / or road network data stored in the network database 406a (width, road type, etc.) may be weighted. The weighting may be determined in advance in association with each road link in the network database 406a, or may be calculated each time by the air volume calculation unit 402c.

  Then, the air volume calculation unit 402c analyzes the air volume component of the wind based on the road link based on the acquired wind direction wind speed information (step SC-3). More specifically, the air volume calculation unit 402c uses the wind direction and the air volume vector represented by the wind speed based on the wind direction wind speed information, and the air flow component in the traveling direction along the road link (link additional air volume) and the vertical direction of the traveling direction. The airflow component in the right direction (link crosswind airflow) is decomposed. Here, the link air volume (link follower air volume and link side wind air volume) is calculated by the control unit 402 of the navigation device 400, but the control unit 402 uses the link air volume information in which the link air volume is calculated in advance to the external device 600 (Japan Meteorological Agency). Link air volume information may be received by receiving from a server such as a private weather company.

  In addition, the wind load calculation unit 402d calculates wind load for each road link based on the link air volume calculated by the air volume calculation unit 402c or received from the external device 600, and generates wind load information (step) SC-4). For example, the wind load calculating unit 402d may calculate the wind load based on the link air volume (the link additional air volume and the link cross air volume) calculated by the air volume calculating unit 402c. As an example of the wind load calculation method by the wind load calculation unit 402d, the calculation methods (1) to (3) described above in the first embodiment can be used.

  Then, the route search unit 402e performs a route search based on the road network data stored in the network database 406a and the wind load information (step SC-5). Note that the wind load information may be generated by the wind load calculation unit 402d, stored in advance in the wind load database 406d, or received from the external device 600. As an example, the route search unit 402e searches for a route that satisfies the route search condition by adding wind load information to the original link cost such as time and distance when the wind is not considered. For example, when the wind load information indicates the wind cost, the route search unit 402e adds the wind cost to the original link cost (that is, the wind consideration cost is integrated to minimize the wind consideration cost). A route may be searched. When the wind load information indicates the cost increase / decrease degree, the route search unit 402e may search for a route by multiplying the original link cost by the cost increase / decrease degree. When wind consideration costs associated with road links are stored in advance in the network database 406a, the route search unit 402e may perform a route search based on the wind consideration costs stored in the network database 406a. .

  Then, the route information generation unit 402f generates route information indicating the route acquired as a result of the route search by the route search unit 402e (step SC-6). Here, in addition to the route information acquired by the route search unit 402e, the route information generation unit 402f adds information about the wind around the route calculated by the air volume calculation unit 402c and the wind load calculation unit 402d. Route information may be generated. In addition to the route information acquired by the route search unit 402e, the route information generation unit 402f is information related to wind such as wind load on the route calculated by the air volume calculation unit 402c and the wind load calculation unit 402d. May be added (superimposed display) on the map around the route stored in the map database 406b. Note that the display mode (display color, display size, line thickness, etc.) of the wind load information added along the route may be changed depending on the strength of the wind, the height of the wind load, and the like. Further, the map data, the information indicating the route, the wind load information, and the like may be displayed individually, or the route may be superimposed on the map data so as to be one display. When the route is superimposed on the map, the route information generation unit 402f displays the map or the route according to the wind intensity / wind load height, for example, by changing the display color of the road with a high wind load. The route information may be created by changing (display color, display size, line thickness, etc.).

  The path information generation unit 402f may generate path information further including information based on a plurality of air volumes or wind loads calculated by the air volume calculation unit 402c and the wind load calculation unit 402d. For example, when the air volume and the wind load are calculated for each departure time, the route information generation unit 402f may create path information that indicates that the air volume and the wind load for each departure time can be compared. This makes it possible to compare the wind load that fluctuates depending on the time of day, so that when a strong wind forecast is issued, the user can also select a time zone where the wind has subsided to a certain extent. . The route for displaying the head wind may be the entire route or only a part of the route (a section that is easily affected by the wind). The displayed headwind strength may be calculated from the maximum headwind strength on the route, or may be calculated by summing up all headwind components on the route, or the headwind for the entire route. The total may be calculated based on the component and the tailwind component. When calculating the strength of the head wind, the link length may be taken into consideration. The comparison method may be a case of comparing a plurality of routes, or may be a comparison for each specific time zone. Further, the route information created by the route information generation unit 402f may be an expression of an air volume or a wind load by a symbol, a numerical value, or the like on a map.

  Further, the route information generation unit 402f may create route information indicating that the air volume and the wind load for each of a plurality of routes can be compared. Further, the route information generation unit 402f converts the air volume calculated by the air volume calculation unit 402c and the wind load calculation unit 402d, the wind load, or the travel load calculated based on the wind load into an index such as calorie consumption and the route. Information may be generated. As an example of how to calculate calorie consumption, calculate the difference compared to when there is no wind, and define calorie consumption per minute calculated as cost for each gender and transportation method. It may be calculated based on that. Further, the target travel load may be a travel load that also considers road conditions such as a gradient, or only a wind load. In addition to the calorie consumption, the index to be converted may be any index that can image the running load, such as kinetic energy, or may be converted to a unique index. In addition to this, wind information may be indicated by symbols or characters on the route displayed on the map, and wind direction wind speed information and wind load information may be included in the route information displayed in front of the map or in text. Information related to the wind may be added. In addition, the route information generation unit 402f prompts the user to move by another means of transportation, to prompt the change of the departure time, or to bypass when the calculated air volume or wind load on the route is larger than a predetermined value. You may create the route information which displays the prompt etc. with a character, a symbol, etc. As a result, the user can be alerted with respect to a portion that should be careful of the wind during traveling (such as a road link to which a wind load of a predetermined value or more is added).

  In the above, the route information generation unit 402f for the route acquired as a result of performing the route search without considering the wind by performing the route search process by the route search unit 402e after step SC-1, Thereafter, the route information generation unit 402f may generate the route information based on the wind load information calculated by the wind load calculation unit 402d. For example, the route information generation unit 402f may generate route information that is presented with priority according to the calculated wind load for a plurality of routes acquired without considering the wind by the route search unit 402e. .

  Then, the route information output unit 402g outputs the route information generated by the route information generation unit 402f to the output unit 414 (step SC-7). Here, when one route is selected from a plurality of routes through the input unit 416 by the user, the route information output unit 402g may perform route guidance according to the selected route. For example, the route information output unit 402g causes the output unit 414 to display a display screen in which the route and the current position information acquired by the current position information acquisition unit 402a are superimposed on the map data included in the route information. Also good.

  In the present embodiment, control may be performed so that the processes of Step SC-1 to Step SC-7 described above are repeated. For example, the navigation device 400 may perform control so that the processes of Step SC-1 to Step SC-7 are repeated at predetermined intervals (for example, 5 minutes). Further, when the control unit 402 detects the update of the wind direction and wind speed information or the update of the wind load information (when new weather information is received from the external device 600 or the like, or when the latest measured value is obtained) or You may process so that the process of step SC-2-step SC-7 may be repeated for every fixed interval. Further, the comparison determination result may be output to the output unit 414, and the process may be determined by the user's selection, and the route information generation unit 402f determines a predetermined route based on the updated wind load information. When it is determined that there is an influence greater than the value (change in wind load information), the user is notified via the input unit 416 of the navigation device 400 whether or not to update the wind load information and perform a reroute search. You may make it select. And the navigation apparatus 400 may perform a reroute search by the route search part 402e, when the reroute search request | requirement is input from the user. In these cases, the starting point of the route search condition may be a position based on the latest current position information received by the current position information acquisition unit 402a.

  In addition, the route information generation unit 402f may output the route information indicating the re-search result as it is, compare the route before the re-search with the route after the re-search, and perform processing according to the determination result. You may make it perform. For example, when the wind load information is updated, the route is not necessarily changed greatly. Therefore, the control unit 402 may determine the degree of influence due to the update of the wind load information and the degree of change of the route separately. Good. Then, as a result of comparing the routes before and after the re-search by the route information generation unit 402f, the route information is generated and the updated route information is output only when it is determined that there is a change beyond a predetermined value. Good. Further, when it is determined that there is no change in the route beyond the predetermined value, the navigation device 400 may output that fact, or may be configured to perform no processing. As described above, by performing the re-route search process, it is possible to avoid a route that is susceptible to wind based on the latest information even when the wind direction and wind speed information changes during traveling.

  The above is an example of the processing of the navigation device 400 in the second embodiment.

[Other embodiments]
Although the embodiments of the present invention have been described so far, the present invention is not limited to the above-described embodiments, but can be applied to various different embodiments within the scope of the technical idea described in the claims. It may be implemented.

  For example, although the case where the navigation apparatus 400 performs processing in a stand-alone form has been described as an example, the navigation apparatus 400 performs processing in response to a request from the client terminal and returns the processing result to the client terminal. It may be.

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

  Further, regarding the terminal device 100, the server device 200, and the navigation device 400, the illustrated components are functionally conceptual, and need not be physically configured as illustrated.

  For example, the processing functions provided in each of the terminal device 100, the server device 200, and the navigation device 400, particularly the processing functions performed by the control unit 102, are all or some of the processing functions performed by a CPU (Central Processing). Unit) and a program interpreted and executed by the CPU, or may be realized as wired logic hardware. The program is recorded on a recording medium to be described later, and is mechanically read by the terminal device 100, the server device 200, and the navigation device 400 as necessary. That is, in the storage units 106 and 406 such as a ROM or an HDD, computer programs for performing various processes by giving instructions to the CPU in cooperation with an OS (Operating System) are recorded. This computer program is executed by being loaded into the RAM, and constitutes a control unit in cooperation with the CPU.

  Further, the computer program may be stored in an application program server connected to the terminal device 100, the server device 200, and the navigation device 400 via an arbitrary network 300, and all of them may be stored as necessary. It is also possible to download a part.

  In addition, the program according to the present invention may be stored in a computer-readable recording medium, and may be configured as a program product. Here, the “recording medium” is any memory card, USB memory, SD card, flexible disk, magneto-optical disk, ROM, EPROM, EEPROM, CD-ROM, MO, DVD, Blu-ray Disc, etc. Of “portable physical media”.

  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. The “program” is not necessarily limited to a single configuration, but is distributed in the form of a plurality of modules and libraries, or in cooperation with a separate program represented by an OS (Operating System). Including those that achieve the function. 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 (network databases 206a and 406a to wind load databases 206d and 406d) stored in the storage unit 106 include memory devices such as RAM and ROM, fixed disk devices such as hard disks, flexible disks, and optical disks. Storage means for storing various programs, tables, databases, web page files, and the like used for various processes and website provision.

  The server device 200 may be configured as an information processing device such as a known personal computer or workstation, or may be configured by connecting an arbitrary peripheral device to the information processing device. The server apparatus 200 may be realized by installing software (including programs, data, and the like) that causes the information processing apparatus to implement the method of the present invention.

  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. That is, the above-described embodiments may be arbitrarily combined and may be selectively implemented.

  As described above in detail, according to the present invention, a navigation system, a server device, a terminal device, a navigation device, a navigation method, a program, and a program that can provide a route that takes into account a traveling load caused by wind, A recording medium can be provided.

DESCRIPTION OF SYMBOLS 100 Terminal device 102 Control part 102a Current position information acquisition part 102b Route search condition transmission part 102c Route information reception part 102d Route information output part 104 Communication control interface part 106 Storage part 108 Input / output control interface part 112 Position acquisition part 114 Output part 116 Input unit 200 Server device 202 Control unit 202a Current position information reception unit 202b Route search condition reception unit 202c Air volume calculation unit 202d Wind load calculation unit 202e Route search unit 202f Route information generation unit 202g Route information transmission unit 204 Communication control interface unit 206 Storage Unit 206a Network database 206b Map database 206c Wind direction wind speed database 206d Wind load database 300 Network 400 Navigation device 402 Control 402a Current position information acquisition unit 402b Route search condition setting unit 402c Air volume calculation unit 402d Wind load calculation unit 402e Route search unit 402f Route information generation unit 402g Route information output unit 404 Communication control interface unit 406 Storage unit 406a Network database 406b Map database 406c Wind direction wind speed database 406d Wind load database 408 Input / output control interface unit 412 Position acquisition unit 414 Output unit 416 Input unit 500 Position transmitter 600 External device

Claims (26)

Network data storage means for storing road network data defining a road network;
The departure satisfying a route search condition including at least a departure place and a destination based on the road network data stored in the network data storage unit and wind load information indicating an increase or decrease amount or degree of increase or decrease in travel load caused by wind. Route search means for searching and acquiring a route from the ground to the destination;
Route information generating means for generating route information indicating the route acquired by the route searching means;
Route information output means for outputting the route information generated by the route information generation means to an output unit;
A navigation system characterized by comprising: The navigation system according to claim 1,
Wind direction and wind speed information storage means for storing wind direction and wind speed information relating to the wind direction and wind speed;
Based on the wind direction and wind speed information stored in the wind direction and wind speed information storage means, the wind load component is calculated by analyzing the wind volume component of the road network data based on the road link, and the wind load information is generated. Wind load calculating means,
A navigation system, further comprising: The navigation system according to claim 2, wherein
The wind load calculating means is
The wind direction based on the wind direction wind speed information and the air volume vector represented by the wind speed are decomposed into the air volume component in the traveling direction along the road link and the air volume component in the direction perpendicular to the traveling direction, A navigation system, wherein the wind load is calculated based on an air volume component. The navigation system according to claim 2 or 3 ,
The wind load calculating means is
A navigation system characterized in that the wind load is calculated by weighting the road links based on the road network data stored in the network data storage means. The navigation system according to claim 2 or 3 ,
Map data storage means for storing map data;
Further comprising
The wind load calculating means is
A navigation system characterized in that the wind load is calculated by weighting the road link based on the map data around the road link stored by the map data storage means. The navigation system according to any one of claims 1 to 5,
The road network data stored in the network data storage means includes the link cost of the road link,
The route search means
A navigation system characterized by searching for the route satisfying the route search condition by adding the wind load information to the link cost of the road network data. The navigation system according to claim 6, wherein
The route search means
A navigation system, wherein the route is searched by adding the wind load of the wind load information as a wind cost to the link cost of the road link. The navigation system according to claim 6, wherein
The route search means
A navigation system, wherein the route is searched by multiplying the link cost by a cost increase / decrease degree indicating a ratio according to the wind load. The navigation system according to claim 6, wherein
Wind load information storage means for storing the wind load information;
Further comprising
The route search means
A navigation system, wherein the route is searched based on the link cost of the road network data and the wind load information stored in the wind load information storage means. The navigation system according to claim 6, wherein
The link cost of the road network data is
Wind-considering link cost that takes into account the wind load in addition to the cost of the road link,
The route search means
A navigation system, wherein the route is searched based on the wind-considered link cost of the road network data stored in the network data storage means. The navigation system according to any one of claims 1 to 10,
The route information generating means
A navigation system, characterized in that the route information is generated by adding information on the wind around the route in addition to the route information acquired by the route search means. The navigation system according to any one of claims 1 to 10,
The route information generating means
In addition to the route information acquired by the route search means, the route information is generated by adding information on wind load or wind on the route on a map around the route. . The navigation system according to any one of claims 2 to 5 ,
The wind load calculating means is
Calculate the air volume or wind load of multiple time zones on the above path, or the air volume or wind load on multiple paths,
The route information generating means
The navigation system characterized in that the route information further including information based on the plurality of air volumes or the wind loads calculated by the wind load calculating means is generated. The navigation system according to any one of claims 2 to 5 ,
The route information generating means
A navigation system, wherein the route information is generated by converting the wind volume calculated by the wind load calculation means, the wind load, or the traveling load calculated based on the wind load into an index. Network data storage means for storing road network data defining a road network;
Route search means for searching for and obtaining a route from the departure place to the destination satisfying a route search condition including at least a departure place and a destination based on the road network data stored in the network data storage means; ,
Route information generating means for generating route information based on wind load information indicating the amount of increase or decrease or degree of increase or decrease in travel load caused by wind, and the route acquired by the route search means;
Route information output means for outputting the route information generated by the route information generation means to an output unit;
A navigation system characterized by comprising: The navigation system according to any one of claims 1 to 14,
The route search means
A navigation system characterized by re-searching the route from the starting point to the destination satisfying the route search condition when the wind load information is updated. The navigation system according to any one of claims 1 to 16,
The route search means
A navigation system for searching for a route for a bicycle when the moving means is a bicycle based on the road network data and the wind load information. A server device including at least a control unit and a storage unit, which is communicably connected to a terminal device including at least an output unit,
The storage unit
Network data storage means for storing road network data defining a road network;
With
The control unit
Route search condition receiving means for receiving a route search condition transmitted from the terminal device and including at least a departure place and a destination;
Based on the road network data stored in the network data storage means and wind load information indicating the amount of increase or decrease in travel load due to wind, the distance from the starting point to the destination satisfying the route search condition A route search means for searching and acquiring a route;
Route information generating means for generating route information indicating the route acquired by the route searching means;
Route information transmission means for outputting the route information generated by the route information generation means to the output unit by transmitting the route information to the terminal device;
A server device comprising: A server device including at least a control unit and a storage unit, which is communicably connected to a terminal device including at least an output unit,
The storage unit
Network data storage means for storing road network data defining a road network;
With
The control unit
Route search condition receiving means for receiving a route search condition transmitted from the terminal device and including at least a departure place and a destination;
Based on the road network data stored in the network data storage means, a route search means for searching and acquiring a route from the starting point to the destination satisfying the route search condition;
Route information generating means for generating route information based on wind load information indicating the amount of increase or decrease or degree of increase or decrease in travel load caused by wind, and the route acquired by the route search means;
Route information transmitting means for outputting the route information generated by the route information generating means to the output unit of the terminal device by transmitting the route information to the terminal device;
A server device comprising: A terminal device including at least a control unit and an output unit, connected to a server device including at least a storage unit so as to be able to communicate,
The storage unit
Network data storage means for storing road network data defining a road network;
With
The control unit
Route search condition transmitting means for transmitting a route search condition including at least a starting point and a destination to the server device;
Route information reception for receiving generated route information from the server device based on the road network data stored in the network data storage means and wind load information indicating the amount of increase or decrease in the travel load due to wind Means,
Route information output means for outputting the route information received by the route information receiving means to the output unit;
A terminal device comprising: A navigation device including at least a storage unit, a control unit, and an output unit,
The storage unit
Network data storage means for storing road network data defining a road network;
With
The control unit
The departure satisfying a route search condition including at least a departure place and a destination based on the road network data stored in the network data storage unit and wind load information indicating an increase or decrease amount or degree of increase or decrease in travel load caused by wind. Route search means for searching and acquiring a route from the ground to the destination;
Route information generating means for generating route information indicating the route acquired by the route searching means;
Route information output means for outputting the route information generated by the route information generation means to an output unit;
A navigation device comprising: A navigation device including at least a storage unit, a control unit, and an output unit,
The storage unit
Network data storage means for storing road network data defining a road network;
With
The control unit
Route search means for searching for and obtaining a route from the departure place to the destination satisfying a route search condition including at least a departure place and a destination based on the road network data stored in the network data storage means; ,
Route information generating means for generating route information based on wind load information indicating the amount of increase or decrease or degree of increase or decrease in travel load caused by wind, and the route acquired by the route search means;
Route information transmitting means for outputting the route information generated by the route information generating means to an output unit;
A navigation device comprising: A navigation method executed in a navigation system,
The above navigation system
Network data storage means for storing road network data defining a road network, route search means, route information generation means, and route information output means,
The route search means includes at least a starting point and a destination based on the road network data stored in the network data storage means and wind load information indicating the amount of increase or decrease in travel load caused by wind. A route search step for searching for and acquiring a route from the departure place to the destination satisfying a search condition;
A route information generating step in which the route information generating means generates route information indicating the route acquired in the route searching step;
A route information output step in which the route information output means outputs the route information generated in the route information generation step to an output unit;
A navigation method comprising: A navigation method executed in a navigation system,
The above navigation system
Network data storage means for storing road network data defining a road network, route search means, route information generation means, and route information output means,
The route search means searches for a route from the departure place to the destination satisfying a route search condition including at least a departure place and a destination based on the road network data stored in the network data storage means. A route search step to obtain;
A route information generating step in which the route information generating means generates route information based on the wind load information indicating the amount of increase or decrease or the degree of increase or decrease in travel load caused by wind, and the route acquired in the route search step; ,
A route information output step in which the route information output means outputs the route information generated in the route information generation step to an output unit;
A navigation method comprising: A program for causing a navigation system to execute
The above navigation system
Network data storage means for storing road network data defining a road network, route search means, route information generation means, and route information output means,
In the route search means, a route including at least a departure place and a destination based on the road network data stored in the network data storage means and wind load information indicating the amount of increase or decrease or the degree of increase or decrease in travel load due to wind. A route search step for searching for and acquiring a route from the departure place to the destination satisfying a search condition;
In the route information generation means, a route information generation step for generating route information indicating the route acquired in the route search step;
In the route information output means, a route information output step for outputting the route information generated in the route information generation step to an output unit;
A program for running A program for causing a navigation system to execute
The above navigation system
Network data storage means for storing road network data defining a road network, route search means, route information generation means, and route information output means,
In the route search means, based on the road network data stored in the network data storage means, a route from the departure place to the destination satisfying a route search condition including at least a departure place and a destination is searched. A route search step to obtain;
A route information generating step for generating route information on the basis of the wind load information indicating the amount or degree of increase / decrease in travel load caused by wind and the route acquired in the route searching step in the route information generating means; ,
In the route information output means, a route information transmission step for outputting the route information generated in the route information generation step to an output unit;
A program for running

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