JP2019007779A - Onboard device, information provision method, and program - Google Patents

Abstract

To solve a problem that information about a charging station around a route reachable by the stored electric power of an onboard battery could not be provided.SOLUTION: The present invention comprises: a map data storage unit for storing map data; a present location acquisition unit for acquiring the present location of a vehicle; a destination acceptance unit for accepting a destination; a route search unit for searching for a route from the present location to the destination using the map data; an output unit for outputting route information concerning the route; a stored electric power calculation unit for calculating the stored electric power of a battery of a vehicle using electricity as the drive source; and a charging station detection unit for detecting a charging station to charge the battery that exists at a location reachable from the route by the stored electric power. An onboard device that outputs charging station information regarding the charging station detected by the charging station detection unit enables the output unit to provide information about the charging station around the route that is reachable by the stored electric power of the onboard battery.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-vehicle device that performs route search and outputs information.

  Conventionally, there has been a navigation system that can acquire information required by a driver by classifying a lot of POI information by information type (see, for example, Patent Document 1). The information acquired by this system includes information on charging stations of electric vehicles.

JP 2012-21788 A

  However, in the conventional navigation system described above, the information on the charging station is acquired regardless of whether or not the vehicle can reach the charging station with the amount of power stored in the in-vehicle battery, so the vehicle is on its way to the charging station. There was a risk that the battery would run out and get stuck.

  Conventionally, there has been no in-vehicle device capable of presenting information about a charging station around a path that can be reached by the amount of stored power of the in-vehicle battery.

  The in-vehicle device according to the first invention uses a map data storage unit that stores map data, a current location acquisition unit that acquires a current location of a vehicle, a destination reception unit that receives a destination, and map data from the current location. A route search unit that searches for a route to the destination, an output unit that outputs route information related to the route, a power storage amount calculation unit that calculates a stored power amount of a battery of a vehicle that uses electricity as a power source, and a route based on the stored power amount A charging stand detection unit that detects a charging stand for charging the battery that exists in a reachable position, and the output unit outputs charging station information related to the charging stand detected by the charging stand detection unit It is an in-vehicle device characterized by.

  With this configuration, it is possible to provide information on charging stations around the route that can be reached with the amount of power stored in the in-vehicle battery.

  In addition, the in-vehicle device according to the second aspect of the invention calculates the necessary amount of electric power necessary for the vehicle to reach the destination with respect to the first aspect, and shows the magnitude relationship between the necessary electric energy and the stored electric energy. A power amount determination unit is further provided, and the output unit charges a charging stand that can be reached by the vehicle according to the stored power amount when the power amount determination unit determines that the required power amount is greater than or equal to the stored power amount. This is an in-vehicle device that outputs stand information.

  With this configuration, it is possible to provide information on a charging station that can be reached with the stored power amount of the in-vehicle battery when the destination cannot be reached with the stored power amount of the in-vehicle battery. The user can avoid being stuck due to the battery running out of the vehicle by charging at the charging station.

  The on-vehicle device according to the third aspect of the invention provides a POI information storage unit that stores one or more POI information related to POI and a position that satisfies a predetermined condition from the charging stand, relative to the first or second aspect of the invention. A POI information detection unit that detects POI information related to existing POIs, and the output unit is an in-vehicle device that outputs POI information together with charging station information.

  With such a configuration, it is possible to provide information on charging stations that can be reached with the amount of stored power, as well as information on POIs in the vicinity thereof. The user can effectively use the charging time by visiting the POI during charging.

  Further, in the in-vehicle device according to the fourth aspect of the invention, in contrast to the third aspect of the invention, the POI information is accompanied by staying time information related to the staying time, and the POI information detecting unit takes charge to charge the battery. This is a vehicle-mounted device that detects POI information based on charging time and staying time information.

  With this configuration, POI information around the charging station can be provided based on the charging time and the staying time. For example, by providing information on the POI during the staying time within the charging time, the user starts charging at the charging station, visits the POI during charging, and when returning to the charging station, the charging is completed. Effective use of charging time.

  Moreover, the vehicle-mounted device of the fifth invention further includes a privilege information acquisition unit that acquires privilege information related to a privilege that can be acquired when the vehicle provides the battery storage power to the charging stand. The output unit is an in-vehicle device that also outputs privilege information.

  With this configuration, it is possible to provide privilege information that can be acquired by providing power storage to the charging station. The user can obtain a privilege by providing stored power at the charging station.

  Further, in the on-vehicle apparatus of the sixth invention, in contrast to the fifth invention, when the power amount determination unit determines that the required power amount is smaller than or equal to the stored power amount, At the same time, the vehicle-mounted device outputs privilege information.

  With such a configuration, it is possible to provide timely information on benefits that can be acquired by providing power storage to the charging station. When there is a margin in the power storage amount of the in-vehicle battery, the user can obtain a privilege by providing the power storage at the charging station.

  The on-vehicle device according to the seventh aspect of the present invention further includes an event receiving unit that receives an event as compared with the first aspect, and the charging stand detection unit is a type that can complete the charging of the battery within the time required for the event. It is an in-vehicle device that detects the charging station.

  With this configuration, it is possible to provide information on the charging station according to the event. For example, for events that require a short time, provide information on charging stations that are expensive but can also be charged quickly, and for events that require a long time, charge that is cheap but can only be charged normally By providing information on the stand, the user can balance the time and cost required for charging.

  According to the vehicle-mounted device according to the present invention, it is possible to provide information on a charging station that can be reached with the amount of stored power of the vehicle-mounted battery.

The block diagram of a navigation system provided with the vehicle equipment in an embodiment Flow chart explaining operation of the in-vehicle device Data structure diagram of the POI information Figure showing an example of the same output screen The figure which shows another example of the same output screen The figure which shows an example of an internal structure of the computer system Block diagram of the stand-alone in-vehicle device

  Hereinafter, embodiments of an in-vehicle device and the like will be described with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again.

  In this embodiment, a navigation system including an in-vehicle device that outputs information on a charging station around a route that can be reached with the amount of stored power of the in-vehicle battery will be described. The amount of stored power is the amount of power held by the electric vehicle. That is, it has the same meaning as the remaining power amount or the remaining battery amount, but in this application, it is referred to as the stored power amount.

  Note that outputting the information on the reachable charging station specifically means detecting the reachable charging station and outputting the information on the charging station. The in-vehicle device usually does not detect or detects a charging station that is unreachable by the stored power amount of the in-vehicle battery, but does not output the information. However, the in-vehicle device detects, for example, information on the charging station that cannot be reached by the stored power amount of the in-vehicle battery, and outputs the information in a manner that can be distinguished from the information on the charging station that can be reached (for example, grayout). Also good.

  Moreover, in this Embodiment, a navigation system provided with the vehicle-mounted apparatus which outputs charge station information when the electric energy required for the destination arrival is larger than or the same as the stored electric energy is demonstrated.

  Note that the charging station information is output when the required power amount is greater than or equal to the stored power amount. Specifically, when the required power amount is greater than or equal to the stored power amount, It is detecting and outputting the information of the charging station. When the required amount of power is the same as or less than the stored power amount, the in-vehicle device normally does not detect the charging station or does not output the information even if it is detected. However, the in-vehicle device detects the charging stand even when the required power amount is equal to or less than the stored power amount, and is distinguishable from the case where the required power amount is greater than or equal to the stored power amount. (For example, gray out) may be output.

  In addition, in the present embodiment, a navigation system including an in-vehicle device that outputs information on a charging station that can be reached by the amount of power stored in the in-vehicle battery and POI information around the charging station will be described.

  Note that outputting POI information around the reachable charging station also means detecting POI information around the reachable charging station and outputting the POI information. The in-vehicle device normally does not detect or outputs POI information around the charging station that cannot be reached even if it is detected. However, the in-vehicle device detects, for example, POI information around the charging station that is unreachable together with other POI information around the route, and is distinguishable from POI information around the reachable charging station ( For example, it may be output in grayout or the like.

  In addition, in this embodiment, a navigation system including an in-vehicle device that outputs POI information that is a POI around a reachable charging station and whose stay time is shorter than the charge time or shorter than the charge time will be described.

  Note that outputting POI information whose stay time is less than or less than the charge time is also specifically detected. POI information whose stay time is less than or less than the charge time is detected, and the POI information is Is to output. The in-vehicle device usually does not detect or outputs POI information whose stay time is longer than the charging time or longer than the charging time. However, the in-vehicle device detects, for example, POI information whose stay time is longer than the charge time or less than the charge time, and is distinguishable from POI information whose stay time is less than or less than the charge time (for example, It may be output in grayout or the like.

  Moreover, in this Embodiment, when the electric energy required for the destination arrival is smaller than or the same as the stored electric energy, an in-vehicle device is provided that outputs information on benefits that can be obtained by providing the stored electric power to the charging station. A navigation system will be described.

  Furthermore, in the present embodiment, an event (for example, a movie theater, drinking tea, etc.) indicating a POI that the user wants to go or what the user wants to do while charging the vehicle-mounted battery at the charging stand is received and within the required time of the received event A navigation system including an in-vehicle device that provides information on a charging stand of a type that can be charged (for example, a quick charging type, a normal charging type, etc.) will be described.

  FIG. 1 is a block diagram of a navigation system including an in-vehicle device 1 according to the present embodiment. This navigation system includes one or more on-vehicle devices 1, a server 2, and one or more charging stand terminals 3. Each of the 1 or 2 or more in-vehicle devices 1 and the 1 or 2 or more charging station terminals 3 can communicate with the server 2 via, for example, a network such as the Internet or a LAN, a wireless or wired communication line, or the like. Connected to.

  The in-vehicle device 1 is, for example, a car navigation system mounted on a vehicle, but may be a portable terminal of a user who gets on the vehicle, and the type thereof is not limited. A vehicle is a moving body that uses electricity as a power source. The moving body using electricity as a power source is, for example, an electric vehicle, but may be a hybrid vehicle. The mobile body using electricity as a power source may be an electric wheelchair. The electric wheelchair includes an electric cart. Note that the term “vehicle”, “automobile”, or “car” in this embodiment includes a moving body other than a vehicle, such as a motorcycle or a ship, and is widely understood. Moreover, although a portable terminal is a smart phone, a tablet terminal, etc., for example, the type is not ask | required.

  The server 2 is a server of a company or the like that operates this system. The server 2 may be, for example, a server or a PC installed in a company or the like, or may be a cloud server, regardless of the type or location.

  The charging stand terminal 3 is, for example, a terminal of a company that operates a charging stand. The charging stand terminal 3 is, for example, a PC, but may be a portable terminal, and the type thereof is not limited.

  However, the said structure is only an illustration, and the vehicle-mounted apparatus 1 in this Embodiment is realizable also with a stand-alone car navigation etc., for example. Note that the stand-alone in-vehicle device will be appropriately described below.

  The in-vehicle device 1 includes a storage unit 11, a reception unit 12, a processing unit 13, an output unit 14, a transmission unit 15, and a reception unit 16.

  The storage unit 11 includes a map data storage unit 111 and a POI information storage unit 112. The reception unit 12 includes a destination reception unit 121 and an event reception unit 122. The processing unit 13 includes a current location acquisition unit 131, a route search unit 132, a stored power amount calculation unit 133, a charging stand detection unit 134, a POI information detection unit 135, a power amount determination unit 136, and a privilege information acquisition unit 137.

  The server 2 includes a server storage unit 21, a server reception unit 22, a server processing unit 23, and a server transmission unit 24.

  The charging station terminal 3 includes a terminal storage unit 31, a terminal reception unit 32, a terminal processing unit 33, and a terminal transmission unit 34.

  The storage part 11 which comprises the vehicle equipment 1 can store various information. The various types of information include, for example, map data to be described later, POI information to be described later.

  In addition, the storage unit 11 usually stores a device identifier. The device identifier is information for identifying the in-vehicle device 1. The device identifier may be, for example, an ID, an address such as a MAC address, or a user identifier that identifies the user of the in-vehicle device 1. The user identifier may be anything, such as an address / name, a telephone number, or an e-mail address. The device identifier may be anything as long as it can identify the in-vehicle device 1. However, when there is only one in-vehicle device 1 or a stand-alone device, the device identifier may not be stored in the storage unit 11.

  The map data storage unit 111 stores one or more map data. Map data is map data. The map data includes, for example, information such as two or more nodes corresponding to intersections and POIs described later, two or more edges corresponding to roads between the nodes, coordinates of each node, length and direction of each edge, and the like. Also good. Specifically, the map data may be KIWI format data, for example. However, this is merely an example, and the data structure of the map data is not limited.

  The POI information storage unit 112 stores one or more POI information. POI information is information related to POI. The POI (Point of Interest) referred to in the present embodiment is a point on the map or an object existing at that point. For example, the POI may be an object of interest of the user, or an object that can be a destination or a target. The POI is, for example, a place, a store, a facility, etc., but may be anything as long as it can be shown on a map. A charging stand is also a kind of POI.

  It is preferable that the POI information storage unit 112 stores one or more POI information related to the POI existing in the area corresponding to the map data stored in the map data storage unit 111.

  The POI information includes, for example, a POI identifier, POI type information, position information, and the like. The position information here is information indicating the position of the POI. The position information is expressed by, for example, (latitude, longitude), (latitude, longitude, altitude), etc., but the expression format is not limited.

  The POI identifier is information for identifying the POI. The POI identifier may be, for example, a POI name, a telephone number, an ID, or any information that can identify the POI. The name may be, for example, a place name such as “Arashiyama”, a store name such as “Café OO”, and a facility name such as “XX Cinema” or “XX Charging Stand”.

  The POI type information is information indicating the type of POI. The POI type information may be, for example, a type name, an ID, or any information that can indicate the type of POI. The type name may be, for example, “sightseeing spot”, “movie theater”, “coffee shop”, “charging stand”, and the like.

  In addition, among the stored one or more POI information, it is preferable that the POI information including the POI type information indicating “charging station” is associated with the charge type identifier. Note that the association includes a case where the POI information includes a charge type identifier. The charge type identifier is information indicating the type of charge that can be performed by the charging station. The type of charging is, for example, a type related to the charging speed, and the charging speed may be, for example, normal charging, quick charging, or the like. The charge type identifier may be, for example, flags “0”, “1”, etc. corresponding to normal charge, quick charge, etc., or a numerical value indicating standard charge time “4 hours”, “40 minutes”, etc. It may be.

  In the following, information that is a kind of POI identifier and identifies a charging station may be referred to as a charging station identifier.

  Further, the stored one or more POI information may be accompanied by stay time information, for example. The stay time information is information relating to the stay time at the POI. The stay time information is, for example, a stay time determined from a past history, and may be information indicating an average stay time per time at the POI. The history is a record that the user stayed at the POI, and may include, for example, information on the number of stays, the stay time of each time, and the like. The stay time information is, for example, information acquired using the history of one user, and may be information including an average stay time per one time of the user. The stay time information is, for example, information acquired using the history of two or more users, and may be information including an average stay time per time per user. The stay time information may be, for example, information input by the provider of the in-vehicle device, or information indicating the time determined according to the POI type information (for example, 90 minutes for a restaurant, 60 minutes for a coffee shop, etc.). good.

  When using the history of the user of the in-vehicle device 1, for example, a set of pairs of POI identifiers and histories is stored in the storage unit 11, and the processing unit 13 is paired with the POI identifier by the receiving unit 12. The history paired with the POI identifier is updated in response to receiving the stay time information, and the history paired with the POI identifier in response to the POI information detection unit 135 detecting the POI information. For example, the stay time may be acquired by dividing the total stay time of each time by the number of stays.

  Further, when two or more user histories are used, for example, the server 2 holds a set of a set of a POI identifier and one or more histories provided from the POI identified by the POI identifier. In the in-vehicle device 1, in response to the POI information detection unit 135 detecting the POI information, the transmission unit 15 transmits the POI identifier included in the POI information to the server 2. Using one or two or more histories that are paired, for example, the stay time information is obtained by dividing the total stay time of each history by the total stay time of each history, and the obtained stay time information May be transmitted to the in-vehicle device 1 as a pair with the POI identifier. And the receiving part 16 which comprises the vehicle equipment 1 receives the said stay time information by making a pair with a POI identifier, and the process part 13 is stored in the POI information storage part 112 by the received stay time information. Of one or more POI information, it is preferable to store the POI information in association with the POI information having the POI identifier. However, in the case of a stand-alone in-vehicle device, it is needless to say that the stay time information is usually acquired using only the history of the user of the in-vehicle device.

  Further, the stay time of one user of the POI identified by the POI identifier is calculated as follows, for example. That is, terminal identifiers and position information (usually (latitude, longitude)) received sequentially from the terminal device of the one user are stored in association with time information, and the stored information has The continuous time in the same place (POI) is acquired from the information of the pair of position information and time information. Since this process is a known technique, a detailed description is omitted.

  The receiving unit 12 receives various types of information. The various types of information are, for example, information such as a destination described later and an event described later. Acceptance refers to accepting information input from an input device such as a touch panel or a keyboard, accepting information transmitted via a network or communication line, accepting information read from a recording medium such as a disk or a semiconductor memory. It is a concept that includes The receiving unit 12 normally receives information such as a destination via an input device such as a touch panel or a keyboard.

  The various information may include various requests for the server 2, for example. The various requests are, for example, a map data request, a POI information request, a route information request, a privilege information request, and the like.

  The map data request is a request for transmitting map data. The map data request has, for example, a map identifier. A map identifier is information for identifying a map. The map identifier may be, for example, an ID, an area name, a prefecture name, or the like, or latitude / longitude information indicating the range of the map, or any information that can identify the map.

  The POI information request is a request for transmitting POI information. The POI information request has, for example, a POI identifier or a region identifier. The area identifier is information for identifying an area. The area identifier may be, for example, an ID, an area name, a prefecture name, or the like, or a map identifier.

  The route information request is a request for transmission of route information. The route information request includes, for example, current location information and destination information. The current location information is information indicating the current location of the vehicle, and is information acquired by the current location acquisition unit 131. The destination information is information indicating the destination of the vehicle, and is information received by the destination reception unit 121.

  The privilege information request is a request for transmission of privilege information. The privilege information request has, for example, a charging station identifier. However, the privilege information request may have a map identifier or a region identifier, for example.

  The server 2 transmits information such as map data to the in-vehicle device 1 in response to a request such as the map data request from the in-vehicle device 1.

  The destination reception unit 121 receives a destination. The destination is information indicating a destination where the user tries to get on the vehicle. The destination is usually a point that is the end point of the route that the route search unit 132 seeks. The destination reception unit 121 may receive a POI identifier such as a place name, a facility name, or a telephone number via a keyboard or the like, or an operation for designating one point on the map displayed on the display May be received by a touch panel, and the mode of reception is not limited.

  The event reception unit 122 receives an event. The event is information indicating an action that the user wants to perform or a type of POI that the user wants to visit while charging a battery (hereinafter also referred to as an on-vehicle battery or simply a battery) mounted on the vehicle. The accepted event may be, for example, action information such as “watch movie” or “drink tea”, or POI type information such as “sightseeing spot” or “movie theater”.

  The processing unit 13 performs various processes. The various processes include, for example, the current location acquisition unit 131, the route search unit 132, the stored power amount calculation unit 133, the charging stand detection unit 134, the POI information detection unit 135, the power amount determination unit 136, and the privilege information acquisition unit 137. It is processing.

  The current location acquisition unit 131 acquires the current location. The current location is information indicating a point where the vehicle currently exists. The current location may be, for example, the starting point of a route that the route search unit 132 seeks. The current location may be, for example, position information indicating the current position of the vehicle, or a POI identifier that identifies a POI existing at or near the current position.

  Specifically, the current location acquisition unit 131 may acquire location information indicating the current location of the vehicle using, for example, GPS. Such position information is, for example, coordinates such as latitude and longitude, but the expression format is not limited. Or the present location acquisition part 131 may acquire the access point identifier of the access point to which the vehicle-mounted apparatus 1 is currently connected as vehicle positional information, for example using the position detection function of a network. Alternatively, for example, the reception unit 12 receives an operation for designating one point on the map with a touch panel or a POI identifier such as a place name or a facility name with a keyboard or the like, and the current location acquisition unit 131 receives map data and POI information. It may be used to acquire position information corresponding to a designated point, an accepted place name, or the like. In the following, the information acquired by the current location acquisition unit 131 in this way, and the information indicating the current location of the vehicle may be collectively referred to as current location information or simply the current location.

  The route search unit 132 searches for a route from the current location to the destination using the map data. Specifically, the route search unit 132 uses, for example, map data stored in the map data storage unit 111, from the current location acquired by the current location acquisition unit 131 to the destination received by the destination reception unit 121. The route information may be acquired by searching for the route. The route search can be performed using an algorithm such as Dijkstra method or A *. Note that the route search algorithm is well-known and will not be described. The route information is information indicating a route from the current location to the destination. The route information may be, for example, a set of position information of two or more nodes constituting the route.

  Alternatively, for example, the route search unit 132 may transmit a route information request to the server 2 in pairs with the device identifier stored in the storage unit 11 and receive the route information from the server 2. Although details will be described later, when receiving a route information request, the server 2 searches for a route using map data stored in the server storage unit 21 and acquires route information. Then, the server 2 transmits the acquired route information to the in-vehicle device 1 identified by the received device identifier in pair with the route information request.

  The stored power amount calculation unit 133 calculates the stored power amount stored in the battery. The calculation is not limited to the case where the power storage amount calculation unit 133 itself calculates the power storage amount. For example, the power storage amount calculated by another processing device or program and stored in the recording medium is calculated. This is widely understood, including the case where the unit 133 reads out and the case where the power storage amount calculation unit 133 requests other processing devices to calculate the power storage amount and receives the calculation result.

  The battery is mounted on a vehicle and is used as a power source by the vehicle. The power storage amount calculation unit 133 is connected to, for example, a voltmeter that measures the voltage of the battery, acquires a voltage value from the voltmeter, and calculates a power storage amount using a function using the voltage value as a parameter. Also good. Alternatively, the power storage amount calculation unit 133 holds, for example, correspondence information that is a set of a pair of a voltage value and a power storage amount instead of the function, and uses the voltage value from the voltmeter and the correspondence information. Thus, the storage path amount may be acquired. Alternatively, the vehicle may include a circuit that calculates the storage path amount of the battery, and the power storage amount calculation unit 133 may acquire the power storage amount from this circuit, and the calculation method of the power storage amount does not matter.

  The charging stand detection unit 134 detects a charging stand. A charging stand is equipment for charging a vehicle battery. The detection of the charging station includes, for example, acquisition of an identifier for identifying the charging station, acquisition of charging station information related to the charging station, acquisition of link information to the charging station information, and the like. Note that the detection of the charging station may include a case where two or more charging stations are detected. That is, when the number of charging stations detected by the charging station detector 134 is not particularly mentioned, the number may be one or two or more. This also applies to the number of POI information detected by the POI information detection unit 135 described later. Furthermore, in the present embodiment, when the number of various types of information is not particularly mentioned, the number may be usually one or two or more. However, when the number is clear from the descriptions before and after, the description of the number may be omitted.

  The charging station detection unit 134 may detect, for example, one or more charging stations existing around the route searched by the route searching unit 132. The one or more charging stations present around the route are, for example, charging stations in which the distance from the route to the charging station is less than or less than a threshold value. The charging station detection unit 134 acquires one or more POI information having POI type information indicating the charging station from the POI information storage unit 112, and position information included in each of the one or more POI information. Calculates the distance from the position indicated by the route to the route, determines whether the distance is less than or less than the threshold, and if the distance is less than or less than the threshold, the POI information is It may be selected as information on charging stations in the vicinity.

  In particular, it is preferable that the charging stand detection unit 134 detects, for example, a charging stand that exists at a position that can be reached from the route based on the amount of power stored in the battery.

  That is, for example, the charging stand detection unit 134 exists at a position that can be reached from the route by the stored power amount calculated by the stored power amount calculation unit 133 among one or more charging stations around the route detected as described above. It is preferable to detect the charging station. Specifically, the charging stand detection unit 134 holds, for example, power consumption information, and multiplies the calculated power storage amount by the travel distance per unit power indicated by the power consumption information, You may obtain | require the driving | running | working distance and may detect the charging station which can be reached | attained from a path | route by the amount of stored electric power. The power consumption information is information indicating a travel distance per unit power amount of the vehicle.

  More specifically, for example, after the charging station detection unit 134 selects one or more POI information as information on charging stations existing around the route as described above, the route searching unit 132 selects the 1 or 2 For each of the above POI information, a branch that branches from one point on the route and reaches the charging station may be searched. The single point may be, for example, an intersection closest to the leg of the vertical line from the charging station to the route. That is, for example, the route search unit 132 uses the position information included in the POI information and the route information to calculate the coordinates of the legs of the perpendicular line that has dropped from the charging station to the route. Then, the route search unit 132 uses the stored map data to identify an intersection having position information closest to the coordinates, and searches for a route from the intersection to the charging station as the branch. Also good.

  Next, the charging station detection unit 134 is a part of the route for each of one or more branches searched by the route search unit 132 as described above, and a part from the current position to the one point, A total distance from the branch road may be obtained, and a charging station whose total distance is less than or less than the travelable distance may be detected as a charging station that can be reached from the route by the amount of stored power.

  Alternatively, the route search unit 132 is a new route including at least a part of the route for each of one or more POI information selected as described above, and selects the shortest route from the current location to the charging station. The charging station detection unit 134 searches and calculates the distance of each of the one or more shortest paths searched in this way, and reaches the charging station whose distance is equal to or less than the travelable distance from the path by the amount of stored power. It may be detected as a charging station capable of.

  However, the above is merely an example, and a method of detecting a charging station that exists at a position that can be reached from the route by the amount of stored power of the battery is not limited.

  In addition, there may be two or more types of charging stations such as a type that can perform quick charging and a type that can perform only normal charging. Normal charging is a method of charging a battery at a normal speed, and rapid charging is a method of charging the same amount of power in a shorter time than normal charging. However, normal charging has the advantage that the same amount of power can be charged at a lower price than normal quick charging.

  Therefore, for example, the charging stand detection unit 134 preferably detects a type of charging stand that can complete the charging of the battery within the required time corresponding to the event received by the event reception unit 122.

  Specifically, the charging stand detection unit 134 includes, for example, the battery capacity that is the capacity of the battery, the normal charging information regarding the speed or time required for normal charging, the quick charging information regarding the speed or time required for quick charging, the event and the required time. It holds first correspondence information that is a set of pairs and second correspondence information that is a set of pairs of charging station identifiers and charging speeds. First, the first correspondence information is used to respond to accepted events. Get the required time. Next, the charging stand detection unit 134 determines whether or not the charging can be completed within the required time using the battery capacity and the acquired required time, and if the charging can be completed within the required time, While the charging station identifier corresponding to the normal charging is obtained using the correspondence information, and when the charging station identifier cannot be completed, the charging station identifier corresponding to the rapid charging may be obtained using the second correspondence information.

  The charging station detector 134 detects the charging station as described above, and acquires one or more charging station information that is information on the detected charging station. The charging station information includes, for example, a charging station identifier, a charging type identifier, and position information. However, the data structure of charging station information does not matter.

  Note that the charging station detection as described above may be performed on the server 2 side as in the route search. For example, the charging station detection unit 134 also acquires charging station information when the transmitting unit 15 transmits a charging station information request having a stored power amount to the server 2 and the receiving unit 16 receives charging station information from the server 2. it can.

  The POI information detection unit 135 detects POI information. The POI information detection unit 135 is, for example, a POI existing around the charging station detected by the charging station detection unit 134, and detects POI information related to the POI other than the charging station.

  Specifically, the POI information detection unit 135 may detect, for example, one or more POI information related to POI existing around each of the one or more charging stations detected by the charging station detection unit 134. That is, for example, when the charging stand detection unit 134 detects one charging stand, the POI information detection unit 135 detects one or more POI information related to the POI existing around the one charging stand. Also good. Further, the POI information detection unit 135, for example, when the charging station detection unit 134 detects two or more charging stations, selects one charging station among the two or more charging stations, for example, at random or in a predetermined manner. It is preferable to select one or more POI information relating to POIs selected by an algorithm and present in the vicinity of the selected charging station. The predetermined algorithm is, for example, selecting the charging station closest to the route, but may be selecting the charging station closest to the current location or selecting the charging station closest to the destination, The procedure does not matter.

  The POI existing around the charging station is a POI that satisfies a predetermined condition from the charging station. The predetermined condition is, for example, a distance condition, but may be a time condition. The distance condition may be, for example, “the distance from the charging station to the POI is smaller than or less than the threshold value”. The time condition may be, for example, “the time required to move from the charging station to the POI is less than or less than a threshold value”. The POI information detection unit 135 may detect the POI that satisfies the predetermined condition from the charging stand and acquire the POI information.

  For example, the POI information detection unit 135 calculates the distance from the charging station to the POI for each one or two or more POIs using one or two or more stored POI information, and the calculated distance is a threshold value. It may be determined whether it is smaller or less than a threshold value, and POI information corresponding to a POI whose distance is smaller than or less than the threshold value may be acquired.

  Alternatively, the POI information detection unit 135 may detect the POI information based on, for example, charging time and staying time information required for charging the battery. Specifically, for example, the POI information detection unit 135 acquires the charging time of the battery, compares the stay time information associated with one or more POI information with the charging time, and is equal to or less than the charging time or the charging time. It is preferable to detect one or more POI information associated with shorter stay time information. It is more preferable that the POI information detection unit 135 calculates the charging time using, for example, a function that differs depending on the type of charging station.

  Specifically, the POI information detection unit 135 first calculates a charging time when the in-vehicle battery is charged at the charging stand detected by the charging stand detection unit 134. Specifically, the POI information detection unit 135 calculates, for example, a first function for calculating a charging time during normal charging using the battery capacity information as a parameter, and a charging time during rapid charging using the battery capacity information as a parameter. The charging function identifier of the charging station is first acquired from the charging station information acquired by the charging station detector 134.

  The battery capacity information is information indicating the capacity of the in-vehicle battery. The battery capacity information is, for example, information indicating the amount of stored power (hereinafter referred to as the maximum stored power amount) when a vehicle battery with no remaining charge is fully charged, but the remaining amount that is the current stored power amount is subtracted from the maximum stored power amount. It may be information indicating the amount (for example, the current available capacity). The POI information detection unit 135 holds, for example, the maximum power storage amount, and obtains battery capacity information indicating the free capacity by subtracting the power storage amount calculated by the power storage amount calculation unit 133 from the maximum power storage amount. Good.

  Next, when the acquired charge type identifier is “normal charge”, the POI information detection unit 135 calculates the charging time by substituting the battery capacity information into the first function. When the acquired charge type identifier is “rapid charge”, the POI information detection unit 135 calculates the charging time by substituting the battery capacity information into the second function.

  Next, the POI information detection unit 135 determines whether or not the stay time information associated with the POI information is less than or less than the charge time for each stored one or more POI information. Then, POI information whose stay time information is less than or less than the charge time is detected.

  Alternatively, the POI information detection unit 135 detects, for example, one or two or more POI information about the POI around the charging station as described above, and then detects each of the detected one or more POI information. Even if it is determined whether the stay time information associated with the POI information is less than or less than the charge time, and POI information whose stay time information is less than or less than the charge time is selected. Good.

  The power amount determination unit 136 calculates the necessary power amount required for the vehicle to reach the destination, and determines the magnitude relationship between the calculated required power amount and the stored power amount of the battery. Specifically, the power amount determination unit 136 holds power consumption information, calculates the travel distance from the current location to the destination using the route information acquired by the route search unit 132, and uses the travel distance as the power. The required power amount may be calculated by dividing by the consumption amount information. Next, the power amount determination unit 136 may determine the magnitude relationship between the required power amount calculated in this way and the stored power amount calculated by the stored power amount calculation unit 133, and may acquire determination result information indicating the determination result. .

  The privilege information acquisition unit 137 acquires privilege information. The privilege information here refers to a privilege that can be obtained from a company or the like that operates the charging station when the vehicle provides the battery storage power to the charging station (hereinafter, sometimes referred to as a privilege when providing power). It is information about. However, the privilege information acquisition part 137 may acquire not only the privilege at the time of electric power provision but the privilege information regarding the privilege (privilege at the time of charge) which can be acquired, for example, when a vehicle charges at a charging stand. The privilege is, for example, a point or a discount ticket that can be used for charging at a charging stand of the company or the like, but may be anything as long as it benefits the user. The privilege information includes, for example, information such as a charging station identifier and the number of acquired points per unit power amount.

  Specifically, for example, one or more privilege information is stored in the storage unit 11, and the privilege information acquisition unit 137 stores the privilege information corresponding to the charging station detected by the charging station detection unit 134. May be obtained from The privilege information stored in the storage unit 11 is, for example, information received from the server 2, but may be information broadcast by data broadcasting or FM radio, or via a portable recording medium. It may be provided information or information stored in advance, and its origin is not limited. However, in the case of a stand-alone in-vehicle device, for example, being broadcast information is preferable in terms of newness of information, but even information provided via a portable recording medium is stored in advance. It may be information.

  Alternatively, for example, in the server 2, the server reception unit 22 receives privilege information from one or more charging station terminals 3 and accumulates it in the server storage unit 21, so that the server storage unit 21 has 1 or Two or more pieces of privilege information are stored, and the privilege information acquisition unit 137 may constitute a privilege information request having a charging station identifier included in the charging station information acquired by the charging station detection unit 134. And the transmission part 15 transmits the comprised privilege information request | requirement to the server 2 with a pair with the apparatus identifier stored in the storage part 11, and the receiving part 16 has the said charge stand identifier from the server 2. Also by receiving the information, the privilege information acquisition unit 137 can acquire the privilege information corresponding to the charging station detected by the charging station detection unit 134.

  It should be noted that the detection of POI information as described above may also be performed on the server 2 side as in the route search. For example, the POI information detection unit 135 can also acquire the POI information when the transmission unit 15 transmits a peripheral POI information request having a charging time to the server 2 and the reception unit 16 receives the peripheral POI information from the server 2. .

  The output unit 14 outputs various information. The various information includes, for example, route information, charging station information, POI information, privilege information, and the like. Output includes, for example, display on a display, sound output from a speaker, etc., but may include storage in a recording medium, delivery of processing results to another program, transmission to an external device, etc. An aspect is not ask | required. The output unit 14 normally outputs information such as route information via an output device such as a display or a speaker.

  The output unit 14 outputs the route information acquired by the route search unit 132, for example. Note that the output route information may not be the same as the acquired route information. Such a matter also applies to charging station information, POI information, and the like. The output of route information may be, for example, display of a map showing the route, voice output of route guidance, and the like. That is, using the acquired route information, the output unit 14 outputs a route guidance sound such as “Please turn left at the next intersection” from the speaker while displaying a map showing the route on the display, for example. May be.

  The output unit 14 outputs, for example, charging station information related to the charging station detected by the charging station detection unit 134. Note that the output unit 14 normally outputs one or more charging station information acquired by the charging station detection unit 134 with respect to one path information acquired by the path searching unit 132.

  For example, the output unit 14 preferably outputs charging station information together with route information. Note that outputting together may be, for example, outputting simultaneously, alternately outputting, or displaying charging station information after displaying route information.

  The output unit 14 uses the route information and the charging station information, for example, to display a map that shows the route with a line and also shows the icon of the charging station that can be reached by the amount of stored battery power on the display. May be. Note that the output unit 14 may output, for example, a charging station icon that cannot be reached with the amount of stored battery power in a manner different from the reachable charging station icon. The output in a different mode is, for example, gray out, but any mode may be used as long as the two types of icons can be distinguished from each other.

  Alternatively, the output unit 14 is, for example, a map having a route line and a reachable charging station icon as described above, and branches from one point on the route to the charging station icon. A map that also has road lines may be displayed on the display.

  It is preferable that the output unit 14 outputs the charging station information when the power amount determination unit 136 determines that the required power amount is greater than or equal to the stored power amount, for example. However, the output unit 14 always displays such charging station information, and when the power amount determination unit 136 determines that the required power amount is greater than or equal to the stored power amount, determination result information indicating the determination result is displayed. It may be output. The output of the determination result information may be, for example, display of a character string such as “The battery has insufficient power storage amount. Charge it at the charging station”, or the sound output thereof.

  In particular, when the power amount determination unit 136 determines that the required power amount is greater than or equal to the stored power amount, the output unit 14 also includes the POI information detected by the POI information detection unit 135 together with the charging station information. It is preferable to output.

  On the other hand, for example, when the power amount determination unit 136 determines that the required power amount is smaller than or the same as the stored power amount, the output unit 14 receives the privilege information acquired by the privilege information acquisition unit 137 together with the charging station information. Is preferably output.

  In general, the output unit 14 automatically outputs the acquired charging station information in response to the charging station detection unit 134 acquiring the charging station information. However, for example, the processing unit 13 accumulates charging station information related to the charging station detected by the charging station detection unit 134 in the storage unit 11, and the output unit 14 receives an instruction to output the charging station information by the receiving unit 12. Accordingly, the charging station information stored in the storage unit 11 may be output, and the trigger and timing of the charging station information output are not limited. Note that this applies to the output of POI information, route information, and the like.

  The output unit 14 also performs, for example, processing related to route guidance. The process related to route guidance is, for example, a process of displaying the current location of a running vehicle or outputting a guidance voice at an intersection after a route search. Such processing is publicly known and will not be described in detail.

  The transmission unit 15 can transmit various types of information. The various information includes, for example, a map data request, a POI information request, a route information request, a privilege information request, and the like. For example, the transmission unit 15 may transmit a request such as a map data request to the server 2 in response to the reception unit 12 receiving a request such as a map data request.

  Alternatively, for example, in response to the destination reception unit 121 receiving the destination, the route search unit 132 determines whether or not the map data storage unit 111 has map data necessary for the route search to the destination. When the necessary map data does not exist in the map data storage unit 111, it is preferable to configure a map data request having a map identifier for identifying the necessary map data. 15 may transmit the configured map data request to the server 2.

  Further, for example, when the route search unit 132 configures a map data request having a map identifier as described above, the POI information detection unit 135 configures a map data request having the same map identifier. In such a case, the transmitting unit 15 may transmit the configured POI information request to the server 2 as well.

  The receiving unit 16 can receive various types of information. Examples of the various information include map data, POI information, route information, privilege information, and the like. For example, the receiving unit 16 may receive information such as map data from the server 2 in response to the transmission unit 15 transmitting a request such as a map data request to the server 2.

  The server storage unit 21 constituting the server 2 can store various types of information. The various types of information include, for example, 1 or 2 or more map data, 1 or 2 or more POI information, 1 or 2 or more privilege information, and the like.

  The one or more map data stored in the map data storage unit 111 constituting the in-vehicle device 1 may not be the same information as the one or more map data stored in the server storage unit 21. Good. Usually, one or more map data on the vehicle-mounted side is a part of one or more map data on the server 2 side. Moreover, even if it is the data of the same map, the data by the side of the server 2 may be newer data or more detailed data with respect to in-vehicle data.

  Similarly, the 1 or 2 or more POI information stored in the POI information storage part 112 which comprises the vehicle-mounted apparatus 1 is not the same information as the 1 or 2 or more POI information stored in the server storage part 21. Also good. Normally, one or more POI information on the vehicle-mounted side is a part of one or more POI information on the server 2 side. Moreover, even if it is the information regarding the same POI, the information on the server 2 side may be newer information or more detailed information than the information on the vehicle-mounted side.

  The server receiving unit 22 can receive various types of information. The various information includes, for example, various requests and privilege information. For example, the server reception unit 22 may receive a request such as a map data request from the in-vehicle device 1, or may receive privilege information from the charging stand terminal 3, for example.

  The server processing unit 23 can perform various processes. The various processes include, for example, determination as to whether or not the server reception unit 22 has received various information.

  Further, for example, when a route information request is received, the server processing unit 23 may perform route search and acquire route information. The route search performed by the server processing unit 23 may be basically the same processing as the processing performed by the vehicle-side route search unit 132. That is, the server processing unit 23 performs a route search using, for example, the current location information and destination information included in the received route information request and one or more map information stored in the server storage unit 21. And route information may be acquired. However, it is preferable that the server processing unit 23 can perform route search with higher accuracy by using, for example, newer map data or more detailed map data.

  For example, when the privilege information from the charging station terminal 3 is received, the server processing unit 23 pairs the privilege information with the terminal identifier for identifying the charging station terminal 3 in the server storage unit 21. You may accumulate.

  For example, when a charging station information request having a stored power amount is received, the server processing unit 23 uses the stored power amount or the like to process the charging station information by the same process as the charging station detection unit 134 described above. You may get it. However, it is preferable that the server processing unit 23 can perform detection with higher accuracy by using, for example, newer POI information or the like.

  For example, when a peripheral POI information request having a charging time is received, the server processing unit 23 acquires POI information by the same processing as the POI information detecting unit 135 described above using the charging time or the like. May be. However, it is preferable that the server processing unit 23 can perform detection with higher accuracy by using, for example, newer POI information or the like.

  The server transmission unit 24 transmits various information. Examples of the various information include map data, POI information, route information, privilege information, and the like.

  For example, when a map data request is received, the server transmission unit 24 identifies the in-vehicle device 1 identified by the device identifier received in pair with the map data request by the map identifier included in the map data request. Map data may be transmitted.

  Similarly, for example, when a POI information request is received, the server transmission unit 24 transmits the POI included in the POI information request to the in-vehicle device 1 identified by the device identifier received in pair with the POI information request. POI information having an identifier or a POI information group corresponding to a map identifier included in the POI information request may be transmitted. The POI information group is a set of one or more POI information having position information included in the map range identified by the map identifier.

  Further, for example, when the route information request is received, the server transmission unit 24 identifies the route information acquired by the server processing unit 23 by the device identifier received in a pair with the route information request. You may transmit to the vehicle equipment 1.

  Furthermore, the server transmission part 24 acquires the privilege information which has the charge station identifier which the said privilege information request | requirement has received from the server storage part 21 according to the privilege information request | requirement being received, for example, You may transmit to the vehicle-mounted apparatus 1 identified with the apparatus identifier received in pair with the said privilege information request | requirement.

  The terminal storage unit 31 constituting the charging stand terminal 3 can store various types of information. The various information includes, for example, a terminal identifier, privilege information, and the like.

  The terminal reception unit 32 receives various types of information. Examples of the various types of information include privilege information. For example, the terminal reception unit 32 receives information such as privilege information via an input device such as a keyboard.

  The terminal processing unit 33 performs various processes. The various processes include, for example, determination of whether information such as privilege information has been received, accumulation of information such as received privilege information in the terminal storage unit 31, and the like.

  For example, the terminal processing unit 33 determines whether or not the terminal reception unit 32 has received the privilege information. When the terminal reception unit 32 receives the privilege information, the terminal processing unit 33 accumulates the privilege information in the terminal storage unit 31. Good.

  The terminal transmission unit 34 transmits various types of information. Examples of the various information include privilege information. For example, the terminal transmission unit 34 pairs the privilege information received by the terminal reception unit 32 or the privilege information stored in the terminal storage unit 31 with the terminal identifier stored in the terminal storage unit 31. May be sent to.

  The storage unit 11, the map data storage unit 111, the POI information storage unit 112, the server storage unit 21, and the terminal storage unit 31 are preferably non-volatile recording media such as a hard disk and a flash memory, but are volatile such as a RAM. It is also possible to realize this recording medium.

  The process in which information is stored in the storage unit 11 or the like is not limited. For example, information may be stored in the storage unit 11 or the like via a recording medium, or information transmitted via a network or a communication line may be stored in the storage unit 11 or the like. Alternatively, information input via the input device may be stored in the storage unit 11 or the like. The input device may be anything such as a touch panel, a keyboard, and a mouse.

  The reception unit 12, the destination reception unit 121, the event reception unit 122, and the terminal reception unit 32 may or may not include an input device. The receiving unit 12 or the like can be realized by driver software of the input device or by the input device and its driver software.

  Processing unit 13, current location acquisition unit 131, route search unit 132, power storage amount calculation unit 133, charging stand detection unit 134, POI information detection unit 135, power amount determination unit 136, privilege information acquisition unit 137, server processing unit 23, The terminal processing unit 33 can usually be realized by an MPU, a memory, or the like. The processing procedure of the processing unit 13 or the like is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, the processing procedure may be realized by hardware (dedicated circuit).

  The output unit 14 may be considered as including or not including an output device such as a display or a speaker. The output unit 14 can be realized by driver software of the output device or by the output device and the driver software.

  The transmission unit 15, the server transmission unit 24, and the terminal transmission unit 34 are usually realized by wired or wireless communication means (for example, a communication module such as a NIC or a modem), but are broadcast means (for example, a broadcast module). It may be realized.

  The receiving unit 16 and the server receiving unit 22 are usually realized by wired or wireless communication means (for example, a communication module such as a NIC or a modem), but are realized by means for receiving a broadcast (for example, a broadcast receiving module). May be.

  Next, operation | movement of the vehicle-mounted apparatus 1 which comprises a navigation system is demonstrated using the flowchart of FIG.

  (Step S201) The current location acquisition unit 131 acquires the current location of the vehicle.

  (Step S202) The processing unit 13 determines whether the destination receiving unit 121 has received a destination. When the destination receiving unit 121 receives the destination, the process proceeds to step S203, and when the destination is not received, the process proceeds to step S214.

  (Step S203) The route search unit 132 uses the map data to search for a route from the current location acquired in step S201 to the destination accepted in step S202.

  Alternatively, for example, when the transmission unit 15 transmits a route information request having the current location and the destination to the server 2, and the reception unit 16 receives the route information from the server 2, the route search unit 132 also receives the destination from the current location. Route information can be acquired. Since the processing on the server 2 side has been described above, it will not be repeated. However, in the case of a stand-alone in-vehicle device, it goes without saying that the route search unit 132 performs route search by itself and acquires route information.

  (Step S204) The output unit 14 and the like start route guidance. Specifically, the output unit 14 outputs the route information acquired in step S203 via an output device such as a display or a speaker. In addition, the current location acquisition unit 131 starts an operation of acquiring the current location, for example, at regular intervals or irregularly, and the output unit 14 displays the acquired current location and also provides guidance voices at an intersection or the like in a timely manner. The operation to output is started.

  (Step S205) The stored power amount calculation unit 133 calculates the stored power amount stored in the battery.

  (Step S206) The charging station detector 134 detects a charging station that exists at a position that can be reached from the route, based on the amount of stored power calculated in step S205. Note that the detection of the charging stand may also be performed on the server 2 side. However, in the case of a stand-alone vehicle-mounted device, it is needless to say that the charging stand detection unit 134 detects itself and acquires charging stand information.

  (Step S207) The POI information detection unit 135 calculates a charging time when the on-vehicle battery is charged at the charging station detected by the charging station detection unit 134 in Step S206.

  (Step S208) The POI information detection unit 135 detects POI information related to the POI existing around the charging station detected by the charging station detection unit 134 in step S206 using one or more stored POI information. To do. The POI information may also be detected on the server 2 side. However, in the case of a stand-alone in-vehicle device, it goes without saying that the POI information detection unit 135 detects POI information itself.

  (Step S209) The privilege information acquisition unit 137 acquires privilege information related to a privilege such as points that can be acquired by providing the power stored in the in-vehicle battery to the charging station detected in Step S206. Alternatively, one or more privilege information may be stored on the server side 2, and the privilege information acquisition unit 137 may acquire the privilege information from the server 2.

  (Step S210) The electric energy determination unit 136 calculates the necessary electric energy necessary for the vehicle to reach the destination.

  (Step S211) The power amount determination unit 136 determines whether or not the required power amount calculated in step S210 is greater than or greater than the stored power amount calculated by the stored power amount calculation unit 133 in step S205. . If the required power amount is greater than or equal to the stored power amount, the process proceeds to step S212. If the required power amount is less than or equal to the stored power amount or less than the stored power amount, the process proceeds to step S213.

  (Step S212) The output unit 14 outputs the charging station information acquired by the charging station detector 134 in step S206 and the POI information detected by the POI information detector 135 in step S208 via an output device. Thereafter, the process returns to step S201.

  (Step S213) The output unit 14 outputs the charging station information acquired by the charging station detection unit 134 in step S206 and the privilege information acquired by the privilege information acquisition unit 137 in step S209 via the output device. Thereafter, the process returns to step S201.

  (Step S214) The processing unit 13 determines whether route guidance is being performed. If route guidance is being performed, the process proceeds to step S215. If route guidance is not being performed, the process returns to step S202.

  (Step S215) The processing unit 13 determines whether or not to end the route guidance. For example, the processing unit 13 may determine to end the route guidance when the vehicle arrives at the destination or when an operation for ending the route guidance is performed. If the route guidance is to be terminated, the process proceeds to step S215. If the route guidance is not to be terminated, the process returns to step S201.

  In the flowchart of FIG. 2, the process starts in response to power-on of the in-vehicle device 1 or activation of the program. The process is also ended by turning off the power or by interrupting the process. However, the trigger for starting or ending the process does not matter.

  In the flowchart of FIG. 2, for example, the following step may be added between step S204 and step S205.

  (Step S214a) The processing unit 13 determines whether or not the event receiving unit 122 has received an event. If the event reception unit 122 has received an event, the process proceeds to step S214b, and if not, the process proceeds to step S215.

  (Step S214b) The charging stand detection unit 134 detects a type of charging stand that can complete the charging of the battery within the time required for the event received by the event receiving unit 122. Specifically, the charging stand detection unit 134 first receives the received event using, for example, the held battery capacity information, normal charging information, quick charging information, first correspondence information, and second correspondence information. Next, it is determined whether charging can be completed within the required time using the battery capacity and the acquired required time. The charging stand detection unit 134 acquires the charging station identifier corresponding to the normal charging when the charging can be completed within the required time, and acquires the charging station identifier corresponding to the quick charging when it cannot be completed. Also good.

  (Step S214c) The output unit 14 outputs the type of charging station information detected by the charging station detection unit 134 in step S214b via the output device. Thereafter, the process proceeds to step S215.

  Hereinafter, a specific operation example of the navigation system in the present embodiment will be described. In addition, the following description can be variously changed and does not limit the present invention. In addition, explanations regarding the matters already described are omitted or simplified.

  The navigation system includes two or more in-vehicle devices 1, a server 2, and two or more charging station terminals 3. The server 2 is a company server that operates the navigation system.

  In addition, one of the two or more charging station terminals 3 is a product of XX Corporation, which is a company that operates a charging station identified by the POI identifier “XX charging station” (hereinafter sometimes referred to as XX charging station). It is a terminal. Furthermore, the other one of the two or more charging station terminals 3 is a terminal of YY Co., which is a company that operates a charging station (hereinafter, YY charging station) identified by the POI identifier “YY charging station”. .

  One of the two or more in-vehicle devices 1 is a car navigation system mounted on an electric vehicle (hereinafter simply referred to as a vehicle) used by the user AA. Hereinafter, this car navigation is simply referred to as the in-vehicle device 1.

  The storage unit 11 of the in-vehicle device 1 stores a device identifier “AA” that is also a user identifier for identifying the user AA.

  The map data storage unit 111 stores one or more map data. The one or more map data is the map data received from the server 2. It is preferable that the server storage unit 21 of the server 2 stores more detailed map data in addition to one or more map data of the same type.

  In the POI information storage unit 112, for example, two or more pieces of POI information as shown in FIG. 3 are stored. FIG. 3 is a data structure diagram of POI information. The POI information includes a POI identifier, POI type information, location information, a charge type identifier, a staying time, privilege information, and the like. An ID (for example, “1”, “2”, “3”, etc.) is associated with two or more stored POI information.

  For example, the POI information corresponding to the ID “1” (hereinafter may be referred to as POI information 1) includes a POI identifier “Arashiyama”, POI type information “sightseeing spot”, location information “(x1, y1)”, charging A type identifier “Null”, a staying time “4 hours”, privilege information “Null”, and the like are included. “Null” indicates that the POI information 1 does not have a charge type identifier or privilege information.

  Similarly, POI information (POI information 2) corresponding to ID “2” includes POI identifier “XX charging station”, POI type information “charging station”, position information “(x2, y2)”, and charging type identifier “normal”. “Charge”, stay time “Null”, privilege information “10 points / kWh” and the like. The POI information 3 includes POI identifier “coffee aa”, POI type information “coffee shop”, location information “(x3, y3)”, charge type identifier “Null”, stay time “30 minutes”, privilege information “Null”. Etc. The POI information 4 includes a POI identifier “bb cinema”, POI type information “movie theater”, position information “(x4, y4)”, charge type identifier “Null”, stay time “2 hours”, privilege information “Null”. And so on. The POI information 5 includes POI identifier “YY charging station”, POI type information “charging station”, position information “(x5, y5)”, charging type identifier “rapid charging”, stay time “Null”, privilege information “ 1 discount ticket / kWh ”etc. Further, the POI information 6 includes a POI identifier “ZZ charging station”, POI type information “charging station”, position information “(x6, y6)”, charging type identifier “normal charging”, stay time “Null”, privilege information “ 2 discount coupons / kWh ”etc.

  Note that the above POI information 1 to 6 is the POI information received from the server 2. The server storage unit 21 preferably stores more detailed POI information in addition to the same type of POI information.

  The charging station detection unit 134 holds vehicle power consumption information “5 km / kWh”. The POI information detection unit 135 holds battery capacity information “20 kWh” indicating the capacity of the in-vehicle battery.

  The user gets on the vehicle and turns on the power of the in-vehicle device 1. When the in-vehicle device 1 is activated, the current location acquisition unit 131 acquires the current location of the vehicle using GPS or the like. In this example, it is assumed that “Chuo-ku, Kobe City” or the corresponding latitude / longitude is acquired.

  Next, the user inputs a destination via the touch panel of the in-vehicle device 1. In this example, it is assumed that “Kyoto Station” or the corresponding latitude / longitude is input.

  In the in-vehicle device 1, the destination reception unit 121 receives the destination, and the route search unit 132 searches for a route from the current location “Chuo-ku, Kobe City” to the destination “Kyoto Station” using the map data. Note that the route search unit 132 also receives similar route information when the transmission unit 15 transmits a route information request having the current location and the destination to the server 2 and the reception unit 16 receives the route information from the server 2. Can be obtained.

  When the route information is acquired, the processing unit 13 or the like starts route guidance. In other words, the output unit 14 first displays a map showing the route on the display using the acquired route information. The current location acquisition unit 131 starts an operation of acquiring the current location at regular intervals (for example, every second, every 6 seconds), and the output unit 14 displays the acquired current location and an arrow indicating the traveling direction on the map. At the same time, an operation to output a guidance voice such as “Please turn left at the next intersection” is started at appropriate times. The route guidance is usually continued until the vehicle arrives at the destination.

  On the other hand, the power storage amount calculation unit 133 calculates the power storage amount using, for example, a voltage value from a voltmeter connected to the in-vehicle battery. In this example, it is assumed that the power storage amount “10 kWh” is calculated.

  The charging stand detection unit 134 detects a charging stand that exists at a position that can be reached from the route based on the calculated power storage amount.

  Specifically, the charging station detection unit 134 first uses the stored POI information 1 to 6 and the like, first, POI information 2 having POI information identifier “charging station”, POI information 5 and POI information 6 and the like. To get. Next, the charging station detection unit 134 calculates the distance from the route to each charging station using the position information included in each acquired POI information, and whether or not the calculated distance is smaller than or less than the threshold value. The POI information with a positive determination result is selected as the POI information of the charging station around the route. In this example, it is assumed that POI information 2, POI information 5, and POI information 6 are selected as POI information of charging stations around the route.

  Next, the charging station detection unit 134 uses the selected POI information 2, POI information 5, and POI information 6 to branch from the current location, for example, through a part of the route at one point on the route, The distance traveled when traveling to each charging station is calculated. In this example, the travel distance “60 km” to the XX charging station corresponding to POI information 2, the travel distance “40 km” to the YY charging station corresponding to POI information 5, and the ZZ charging station corresponding to POI information 5 It is assumed that the travel distance “30 km” is calculated.

  In addition, the charging stand detection unit 134 calculates the travelable distance “50 km” by multiplying the calculated power storage amount “10 kWh” by the stored power consumption amount information “5 km / kWh”. Then, the charging station detection unit 134 determines whether or not the travel distance to each charging station is less than or less than the travel tourism distance, and reaches the charging station with a positive determination result from the route according to the amount of stored power. Is detected as a charging station that exists in a possible position. In this example, the travel distance “60 km” to the XX charging station is greater than the travelable distance “50 km”, while the travel distance “40 km” to the YY charging station corresponding to the POI information 5 is the travelable distance “50 km”. The travel distance “30 km” to the ZZ charging station corresponding to the POI information 6 is also smaller than the travelable distance “50 km”, and the determination result regarding the POI information 2 becomes negative. As a result of the determination result regarding the information 5 and the POI information 6 being affirmative, the YY charging station and the ZZ charging station are detected. Therefore, the charging station detection unit 134 acquires POI information 5 related to the YY charging station and POI information 6 related to the ZZ charging station as two charging station information.

  Next, the POI information detection unit 135 is a charging station detected by the charging station detection unit 134 using the POI information 5 which is one of the two charging station information acquired by the charging station detection unit 134 as described above. The charging time when the vehicle battery is charged is calculated. Specifically, the POI information detection unit 135 calculates the charging time using the stored battery capacity information “20 kWh” and the second function corresponding to the charging type identifier “rapid charging”. In this example, it is assumed that the charging time “30 minutes” is calculated.

  Next, the POI information detection unit 135 uses the POI information 6 which is the other of the acquired two charging station information, and calculates the charging time when the in-vehicle battery is charged at the charging station detected by the charging station detection unit 134. calculate. Specifically, the POI information detection unit 135 calculates the charging time using the stored battery capacity information “20 kWh” and the first function corresponding to the charging type identifier “normal charging”. In this example, it is assumed that the charging time “2 hours” is calculated.

  Next, the POI information detection unit 135 is a POI existing around the two charging stations detected by the charging station detection unit 134 using the stored POI information 1 to 6 and the like, and the POIs other than the charging station POI information about is detected.

  Specifically, the POI information detection unit 135 firstly includes the position information (x5, y5) of the POI information 5 which is one of the two acquired charging station information, and the POI type information other than “charging station”. The distance from the detected YY charging station to each POI is calculated using the POI information 1, 3 and 4, etc., and one or more POIs whose calculated distance is smaller or smaller than a threshold value are detected. . In this example, it is assumed that two POIs identified by POI identifier “coffee aa” (hereinafter referred to as “coffee aa”) and POI identified by POI identifier “bb cinema” (hereinafter referred to as “bb cinema”) are detected.

  Next, the POI information detection unit 135 uses the calculated charging time “30 minutes”, the POI information 3 having the POI identifier “tea aa”, and the POI information 4 having the POI identifier “bb cinema” to Among POIs, a POI having a stay time shorter than or shorter than the charging time is selected. In this example, the stay time “2 hours” at the bb cinema is longer than the charge time “30” minutes, while the stay time “30 minutes” at the cafe aa is less than the charge time “30 minutes”. Is elected.

  The POI information detection unit 135 acquires the POI information 3 corresponding to the coffee aa selected in this way.

  Next, the POI information detection unit 135 includes the position information (x6, y6) of the POI information 6 which is the other of the acquired two charging station information, and the POI information 1 whose POI type information is other than “charging station”. , 3 and 4 are used to calculate the distance from the detected YY charging station to each POI, and one or more POIs whose calculated distance is smaller or smaller than a threshold value are detected. In this example, it is assumed that the bb cinema is detected.

  Next, the POI information detection unit 135 uses the POI information 6 having the calculated charging time “2 hours” and the POI identifier “bb cinema”, and the stay time “2 hours” of the bb cinema is the charging time “2 hours”. “Because it is below, bb cinema is selected and POI information 6 corresponding to this is acquired.

  Next, the privilege information acquisition unit 137 uses the POI information 3 acquired in this way, and the privilege information “1” relating to the privilege such as points that can be acquired by providing the stored power of the in-vehicle battery to the detected YY charging station. Get 1 discount ticket / kWh ”. In addition, the privilege information acquisition unit 137 uses the acquired POI information 6 to obtain the privilege information “2 discount coupons / kWh” that can be acquired by providing the ZZ charging stand with the stored pond power. get.

  Next, the electric energy determination unit 136 calculates a necessary electric energy necessary for the vehicle to reach the destination “Kyoto Station”. Specifically, the power amount determination unit 136 first calculates a travel distance from the current location to the destination using the stored power consumption information “5 km / kWh” and the acquired route information. . In this example, it is assumed that the travel distance “75 km” is calculated. Next, the power amount determination unit 136 calculates the required power amount “15 kWh” by dividing the travel distance by the power consumption amount information.

  Next, the power amount determination unit 136 determines whether or not the required power amount calculated in this way is greater than or greater than the stored power amount. In this example, since the required power amount “15 kWh” is smaller than the stored power amount “10 kWh”, the determination result of the power amount determination unit 136 is a negative determination result. That is, since the amount of stored power is less than the required amount of power, the vehicle cannot reach the destination unless it is charged halfway.

  Therefore, the output unit 14 corresponds to the POI information 5 and the POI information 6 which are the two charging station information acquired by the charging station detection unit 134 and the acquired POI information 5 in addition to the route information and the current location information. The POI information 3 detected by the POI information detection unit 135 and the POI information 4 detected by the POI information detection unit 135 corresponding to the acquired POI information 6 are output via an output device. Thereby, the display of the display of the vehicle-mounted apparatus 1 becomes, for example, as shown in FIG.

  FIG. 4 is a diagram illustrating an example of the output screen. This screen is a screen that is output when charging is required on the way. This screen includes a route 401 corresponding to the route information, an arrow 402 corresponding to the current location information, a YY charging station icon 403 corresponding to the POI information 5, a cafe aa icon 404 corresponding to the POI information 3, and a POI. A ZZ charging station icon 405 corresponding to the information 6 and a bb cinema icon 406 corresponding to the POI information 4 are included. The icon 403 is associated with a character string “EV” corresponding to the POI type identifier “charging station” and a character string “quick” corresponding to the charging type identifier “rapid charge”. The icon 405 is associated with a character string “EV” corresponding to the POI type identifier “charging station” and a character string “normal” corresponding to the charging type identifier “normal charging”. Note that a branch 401a that branches from the point P1 and branches to the icon 403 and a branch 401b that branches from the other point P2 and branches to the icon 405 are added to the path 401. May be.

  The user can know a charging station that can be reached with the current power storage amount by referring to the output screen as shown in FIG. Also, it is possible to know a POI suitable for visiting during charging at the charging station.

  In addition, when the determination result of the electric energy determination unit 136 is a positive determination result, the vehicle can reach the destination without charging in the middle, and there is a possibility that a part of the stored electric energy is left. Therefore, the output unit 14 provides the bonus information for the POI information 5 and the POI information 6 that are the two charging station information acquired by the charging station detection unit 134 and the POI information 5 in addition to the route information and the current location information. The privilege information included in the POI information 3 acquired by the acquisition unit 137 and the privilege information included in the POI information 4 acquired by the privilege information acquisition unit 137 with respect to the POI information 6 are output via the output device. Thereby, the display of the display of the vehicle-mounted apparatus 1 becomes, for example, as shown in FIG.

  FIG. 5 is a diagram illustrating another example of the output screen. This screen is a screen that is output when charging is not required during the process. In this screen, the icon 404 is replaced with a balloon 501 and the icon 406 is replaced with a balloon 502 in the screen of FIG. The balloon 501 is associated with a character string “one discount ticket per kWh when power storage is provided” corresponding to the privilege information. Also, the balloon 502 is associated with a character string “one discount ticket per 1 kWh when power storage is provided” corresponding to the privilege information.

  By referring to the output screen as shown in FIG. 5, the user can know a charging station that can obtain a privilege by providing a surplus power storage amount. Moreover, the content of the privilege can also be known, and for example, a charging stand that can obtain the most advantageous privilege can be selected.

  An example of operation when an event is received during route guidance is as follows.

  In the in-vehicle device 1, when the event reception unit 122 receives an event, the charging stand detection unit 134 detects a type of charging stand that can complete the charging of the battery within the time required for the event. In this example, it is assumed that the event “watch movie” is accepted.

  In this case, the charging stand detection unit 134 acquires the required time “2 hours” corresponding to the received event “watch movie” using the first correspondence information that is held. Next, the charging stand detection The unit 134 uses the POI information 2, 5 and 6 regarding the charging station, the battery capacity information “20 kWh”, the normal charging information “4 hours”, and the quick charging information “40 minutes”. It is determined whether or not charging can be completed within the required time “2 hours” at the stand. The charging stand detection unit 134 has the normal charging information “4 hours” larger than the required time “2 hours” in the XX charging stand corresponding to the POI information 2 and the ZZ charging stand 6 corresponding to the POI information 6. Therefore, while it is determined that charging cannot be completed within the required time, in the YY charging stand corresponding to the POI information 5, the quick charge information “40 minutes” is smaller than the required time “2 hours”. It is determined that the charging can be completed, and the YY charging station corresponding to the quick charging is detected.

  The output unit 14 outputs POI information 5 regarding the YY charging stand. For example, the output screen in this case may be obtained by omitting the branch path 401b, the icon 405, and the icon 406 from the screen of FIG.

  As described above, according to the present embodiment, map data is stored in the map data storage unit 111, and the in-vehicle device 1 acquires the current location of the vehicle, receives the destination, and uses the map data to obtain the current location. To search for a route from the vehicle to the destination, output route information related to the route, calculate the amount of stored power stored in the battery mounted on the vehicle and powered by the vehicle, and charge the battery Around the path that can be reached with the power storage amount of the in-vehicle battery by detecting the charging station that exists at a position that can be reached from the path by the amount of stored power and outputting the charging station information about the detected charging station Can provide information on charging stations.

  Further, the in-vehicle device 1 calculates the necessary power amount necessary for the vehicle to reach the destination, determines the magnitude relationship between the required power amount and the stored power amount, and the required power amount is greater than or equal to the stored power amount. If it is determined that there is, the charging station information is output, so that the information on the charging station that can be reached with the power storage amount of the in-vehicle battery can be provided when the power storage amount of the in-vehicle battery cannot reach the destination. The user can avoid being stuck due to the battery running out of the vehicle by charging at the charging station.

  The POI information storage unit 112 stores one or more POI information related to the POI existing in the area corresponding to the map data, and the in-vehicle device 1 exists at a position satisfying a predetermined condition from the charging station. By detecting the POI information related to the POI to be performed and outputting the POI information together with the charging station information, it is possible to provide information on the charging station that can be reached by the amount of stored power and information on the surrounding POIs. The user can effectively use the charging time by visiting such POI during charging.

  In addition, the POI information is accompanied by stay time information that is an average stay time of staying in the POI determined from the past history, and the in-vehicle device 1 includes a charge time required to charge the battery. By detecting POI information based on the stay time information, POI information around the charging station can be provided in consideration of the charge time and stay time. For example, by providing information on the POI during the staying time within the charging time, the user starts charging at the charging station, visits the POI during charging, and when returning to the charging station, the charging is completed. Effective use of charging time.

  Moreover, when the vehicle-mounted apparatus 1 acquires the privilege information regarding the privilege which can be acquired when the vehicle provides the stored power of the battery to the charging station, and determines that the required power amount is smaller or the same as the stored power amount. By outputting privilege information together with charging station information, when there is a margin in the amount of power stored in the in-vehicle battery, it is possible to provide information on privileges that can be acquired by providing the stored power to the charging station. The user can obtain a privilege by providing stored power at the charging station.

  Moreover, the vehicle-mounted apparatus 1 can receive the event, and can provide the information of the charging station according to the event by detecting the kind of charging station which can complete the charging of the battery within the time required for the event. For example, for events that require a short time, provide information on charging stations that are expensive but can also be charged quickly, and for events that require a long time, charge that is cheap but can only be charged normally By providing information on the stand, the user can balance the time and cost required for charging.

  Furthermore, the processing in the present embodiment may be realized by software. Then, this software may be distributed by software download or the like. Further, this software may be recorded and distributed on a recording medium such as a CD-ROM. This also applies to other embodiments in this specification. Note that the software that implements the information processing apparatus according to the present embodiment is the following program.

  That is, the computer-accessible recording medium includes a map data storage unit 111 that stores map data. This program uses the computer to acquire a current location of the vehicle and a current location acquisition unit 131 that receives the current location of the vehicle, and a destination reception that receives the destination. Unit 121, route search unit 132 that searches for a route from the current location to the destination using map data, output unit 14 that outputs route information related to the route, and the amount of power stored in a battery of a vehicle that uses electricity as a power source The power storage amount calculation unit 133 for calculating the charging stand and the charging stand detection unit 134 for detecting a charging station that can be reached from the route by reaching the power storage amount, and the output unit 14 detects the charging stand. It is a program characterized by outputting charging station information relating to the charging station detected by the unit 134.

  FIG. 6 is a diagram illustrating an example of an internal configuration of a computer system 900 that executes the program according to the embodiment to realize the in-vehicle device 1 and the like. In FIG. 6, a computer system 900 is connected to an MPU 911 which is a computer executing a program, a ROM 912 for storing a program such as a bootup program, and the MPU 911, and temporarily stores an instruction of an application program. A RAM 913 that provides temporary storage space, a storage 914 that stores application programs, system programs, and data, a bus 915 that interconnects the MPU 911, ROM 912, and the like, and a communication module that provides connection to a network, a communication line, and the like 916, a memory card slot 917 into which the memory card 920 is inserted, a display 918, and a touch panel 919 provided on the display surface of the display 918.

  The storage 914 is, for example, a hard disk, SSD, flash memory, or the like. The computer system 900 preferably includes an input device such as a keyboard (not shown). The entire computer system 900 may be called a computer.

  A program that causes the computer system 900 to execute the functions of the in-vehicle device 1 or the like may be stored in the memory card 920, inserted into the memory card slot 917, and transferred to the storage 914, for example. Instead, the program may be transmitted to the computer system 900 via a network or the like and stored in the storage 914. The program is loaded into the RAM 913 when executed. The program may be loaded directly from the memory card 920 or a network. Further, the program may be read into the computer system 900 via another removable recording medium (for example, a disk such as a DVD or a CD) instead of the memory card 920.

  The program does not necessarily include an operating system (OS) that causes the computer system 900 to execute functions of the in-vehicle device 1 or the like, or a third party program. The program may include only a part of an instruction that calls an appropriate function or module in a controlled manner and obtains a desired result. How the computer system 900 operates is well known and will not be described in detail.

  The above-described computer system 900 is a portable terminal such as a car navigation system or a smartphone, but the server 2 and the charging stand terminal 3 can be realized by a server or a stationary PC, for example. In this case, for example, the touch panel 918 may be replaced with a keyboard and a mouse, the memory card slot 917 may be replaced with a disk drive, and the memory card 920 may be replaced with a disk. However, the above is an example, and the hardware configuration of the computer that implements the in-vehicle device 1 or the like is not limited.

  In the above program, in a transmission step for transmitting information, a reception step for receiving information, etc., processing performed by hardware, for example, processing performed by a modem or an interface card in the transmission step (only performed by hardware). Not included) is not included.

  Further, the computer that executes the program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  Further, in each of the above embodiments, it goes without saying that two or more communication means (such as the transmission unit 15 and the reception unit 16) existing in one device may be physically realized by one medium.

  In the above embodiment, each processing (each function) may be realized by centralized processing by a single device (system), or may be realized by distributed processing by a plurality of devices. May be.

  In addition, as above-mentioned, the vehicle-mounted apparatus 1 in the said embodiment may be stand-alone. A configuration example of the stand-alone in-vehicle device 1 is shown in FIG. The in-vehicle device 1 may be, for example, a device in which the transmission unit 15 and the reception unit 16 are omitted from the in-vehicle device 1 in FIG. In such an in-vehicle device 1, for example, the map data is stored in advance in the map data storage unit 111 or is provided via a portable recording medium and accumulated in the map data storage unit 111. The POI information is also stored in the POI information storage unit 112 in advance or provided via a portable recording medium and accumulated in the POI information storage unit 112. Further, the privilege information is also stored in advance in the storage unit 11 or provided via a portable recording medium and accumulated in the storage unit 11.

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the in-vehicle device according to the present invention has an effect that it can provide information on a charging station around a route that can be reached by the amount of power stored in the in-vehicle battery, and is useful as an in-vehicle device.

DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus 2 Server 3 Charging stand terminal 11 Storage part 12 Reception part 13 Processing part 14 Output part 15 Transmission part 16 Reception part 21 Server storage part 22 Server reception part 23 Server processing part 24 Server transmission part 31 Terminal storage part 32 Terminal reception Unit 33 Terminal processing unit 34 Terminal transmission unit 111 Map data storage unit 112 POI information storage unit 121 Destination reception unit 122 Event reception unit 131 Current location acquisition unit 132 Route search unit 133 Power storage amount calculation unit 134 Charging station detection unit 135 POI information detection Unit 136 power amount determination unit 137 privilege information acquisition unit

Claims (9)

A map data storage unit for storing map data;
A current location acquisition unit for acquiring the current location of the vehicle;
A destination reception unit for receiving a destination;
Using the map data, a route search unit that searches for a route from the current location to the destination;
An output unit for outputting route information regarding the route;
A power storage amount calculation unit for calculating a power storage amount of a battery mounted on a vehicle powered by electricity;
A charging stand detection unit for detecting a charging stand for charging the battery, which is present at a position that can be reached from the route by the amount of stored power;
With
The output unit is
An in-vehicle device that outputs charging station information related to a charging station detected by the charging station detector. A power amount determination unit that calculates a necessary amount of power required for the vehicle to reach the destination and determines a magnitude relationship between the required amount of power and the stored power amount;
The output unit is
When the power amount determination unit determines that the required power amount is greater than or equal to the stored power amount, the vehicle outputs charging station information of a charging station that can be reached by the stored power amount,
The in-vehicle device according to claim 1. A POI information storage unit storing one or more POI information related to POI;
A POI information detection unit for detecting POI information related to POI existing at a position satisfying a predetermined condition from the charging station;
In addition,
The output unit is
The POI information is output together with the charging station information.
The in-vehicle device according to claim 1 or 2. The POI information is accompanied by stay time information regarding stay time,
The POI information detection unit
Detecting the POI information based on the charging time required to charge the battery and the staying time information;
The in-vehicle device according to claim 3. Further comprising a privilege information acquisition unit for acquiring privilege information related to a privilege that can be acquired when the vehicle provides power storage of the battery to the charging station;
The output unit is
The privilege information is also output.
The in-vehicle device according to claim 2. The output unit is
The in-vehicle device according to claim 5, wherein the privilege information is output together with the charging station information when the power amount determination unit determines that the required power amount is smaller than or equal to the stored power amount. An event reception unit for receiving events is further provided.
The charging stand detector is
Detecting a type of charging station capable of completing charging of the battery within the time required for the event;
The in-vehicle device according to claim 1. A map data storage unit that stores map data, a current location acquisition unit, a destination reception unit, a route search unit, an output unit, a power storage amount calculation unit, an information providing method realized by a charging station detection unit,
The current location acquisition unit acquires a current location of the vehicle, and a current location acquisition step;
A destination receiving step for receiving the destination;
A route search step in which the route search unit searches for a route from the current location to the destination using the map data;
An output step in which the output unit outputs route information related to the route;
The stored power amount calculating unit calculates the stored power amount of a battery of a vehicle using electricity as a power source; and
A charging stand detection step of detecting a charging stand for charging the battery, the charging stand detection unit being present at a position that can be reached from the route by the stored power amount;
With
In the output step,
The information providing method, wherein the output unit outputs charging station information related to the charging station detected by the charging station detection unit. Computer-accessible recording media
A map data storage unit for storing map data;
The computer,
A current location acquisition unit for acquiring the current location of the vehicle;
A destination reception unit for receiving a destination;
Using the map data, a route search unit that searches for a route from the current location to the destination;
An output unit for outputting route information regarding the route;
A power storage amount calculation unit for calculating a power storage amount of a battery of a vehicle using electricity as a power source;
A charging stand detector that detects a charging stand for charging the battery, which is present at a position that can be reached from the route by the amount of stored power,
Function as
The output unit is
A program that outputs charging station information related to a charging station detected by the charging station detector.

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