JP2002357433A - Information retrieval system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information retrieval system capable of transmitting only information required by a user, in a communication system communicable with a car navigation device. SOLUTION: The car navigation device 110 loaded on an automobile 200 requests transmission of a commodity list to a server device 300 through a cellular phone 120 and a communication network 10. In this case, the car navigation device 110 transmits information of the own car position together with acquisition request of the commodity list. In response thereto, the server device 300 selects a store in a prescribed range from the present position of the automobile based on the own car position information received from the car navigation device 110. After selection, the server device 300 retrieves the commodity list relative to the selected store, and transmits the commodity list on stocked commodities to the car navigation device 110.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an information retrieval system, and more particularly, to an information retrieval system in which a car navigation device mounted on an automobile is connected to a network.

[0002]

2. Description of the Related Art As a conventional car navigation device, a device for connecting to the Internet via a portable telephone has been considered. A system that allows a car navigation device to acquire various information on the Internet using this function has been considered. For example, JP-A-2
As disclosed in Japanese Patent Application Publication No. 000-99440, data distribution in which position data of a destination is distributed to a car navigation device via a network, and the car navigation device displays a route from the current position to the destination on a map. A system has been proposed. Further, the information that the car navigation device acquires from the network is not limited to the position information, and for example, a system that distributes facility information such as store information to the car navigation device can be considered.

[0003]

In such a system in which a car navigation device can acquire information from a network as described above, various information is stored by a server connected to the network. As an example, consider a case where the server stores various store information. In this case, when the user requests information of a target store, for example, a restaurant, the server searches the stored store information. Further, the server selects restaurant information as a result of the search and transmits the information to the car navigation device.

[0004] Here, the information required by the user is information on restaurants near the current position. However, regardless of the location of the user who requested the information,
Search store information and select restaurant information. Therefore,
The information of the restaurant transmitted by the server includes information that the user does not need. Therefore, the user has to select necessary information from the transmitted information by himself, which is very troublesome. In addition, since the server transmits an unnecessarily large amount of information, the time required for communication increases.

[0005] Therefore, an object of the present invention is to provide an information retrieval system capable of transmitting only information required by a user.

[0006]

A first invention is an information retrieval system including a server device for providing facility information via a network in response to a request from a car navigation device. And a transmission requesting unit for transmitting a request for acquiring facility information and the own vehicle position information detected by the own vehicle position detecting means. A facility information storage unit for storing facility information including information,
Based on the facility information acquisition request and the own vehicle position information transmitted from the car navigation device and the position information stored in the facility information storage unit, the facility information stored in the facility information storage unit includes an automobile. The facility information of the facility within a predetermined range from the current location of the facility information, and a facility information specifying unit that specifies the facility information according to the acquisition request, and the facility information specified by the facility information specifying unit, the car navigation device And a facility information transmitting unit for transmitting the information to the user.

According to the first aspect, the server device includes:
By using the position information transmitted from the car navigation device, facilities outside a predetermined range from the current position of the vehicle are not transmitted to the car navigation device.

A second invention is an invention according to the first invention, wherein the facility information specifying unit is stored in the own vehicle position information transmitted from the car navigation device and in the facility information storage unit. Based on the position information, the facility information stored in the facility information storage unit, a nearby facility selection unit that selects facility information of facilities that are within a predetermined range from the current location of the car, and a nearby facility selection unit A search unit that searches for facility information and thereby specifies facility information in response to an acquisition request transmitted from the car navigation device.

According to the second aspect, the server device includes:
By using the position information transmitted from the car navigation device, facilities outside a predetermined range from the current position of the car are excluded from the search target. That is, the server device excludes facility information that the user may not need before performing the search. After that, the server device searches only facility information that may be needed by the user, and specifies information to be transmitted to the user.

A third invention is an invention according to the second invention, wherein the car navigation device further comprises a traveling direction detecting unit for detecting a traveling direction of the automobile, and the transmission requesting unit acquires facility information. The request, the vehicle position information, and the traveling direction information detected by the traveling direction detection unit are transmitted, and the nearby facility selection unit transmits the vehicle position information and the traveling direction information transmitted from the car navigation device, Based on the position information stored in the information storage unit, among the facility information stored in the facility information storage unit, the facility information that is within a predetermined range from the current location of the car and is in the traveling direction of the car Elect.

According to the third aspect, the server device includes:
A facility to be searched is selected in consideration of the traveling direction of the car. Therefore, facilities that exist in the direction opposite to the traveling direction of the vehicle are not searched, and the number of facilities to be searched is further reduced.

According to a fourth aspect of the present invention, the facility information selected by the nearby facility selection unit includes store information on the store, and the facility information storage unit stores, for each store, store position information indicating the store position, and Stores product information indicating the product placed and inventory information indicating the number of stocks of the product. The search unit stores the store information stored in the facility information storage unit for the store information selected by the nearby facility selection unit. The facility information transmission unit searches the car navigation device for the product information specified by the search unit by searching for the stock information of the product placed in the car navigation device. Send.

According to the fourth aspect, the server device comprises:
The product list is searched to prevent the product list of the product whose stock quantity is 0 from being transmitted. However, stores where the user does not stop by location are not targeted for the product list search.

According to a fifth aspect of the present invention, there is provided a server device for providing facility information via a network in response to a request from a car navigation device, wherein the facility information storage unit stores facility information including facility location information; Based on the facility information acquisition request and the own vehicle position information transmitted from the car navigation device and the position information stored in the facility information storage unit, the facility information stored in the facility information storage unit includes an automobile. A facility information specifying unit that specifies facility information according to the acquisition request, and the facility information specified by the facility information specifying unit is facility information related to facilities within a predetermined range from the current location of the car navigation device. And a facility information transmitting unit for transmitting the information to the user.

According to the fifth aspect, the server device includes:
By using the position information transmitted from the car navigation device, facilities outside a predetermined range from the current position of the vehicle are not transmitted to the car navigation device.

[0016]

FIG. 1 is a block diagram showing the configuration of a product search system according to one embodiment of the present invention. 1, the product search system includes a car navigation device 110, a mobile phone 120, a communication network 10, a server device 300, and a client device 400. The car navigation device 110 installed in the car 200 is connected to the communication network 10 via the mobile phone 120. Server device 300 and client device 4
00 are connected to the communication network 10, respectively. Although not shown, the product search system according to the present embodiment includes a plurality of client devices in addition to the client device 400 typically shown. In this embodiment, the client device 400 is connected to the server device 300
Is connected via the communication network 10, but in another embodiment, a configuration in which the communication device 10 is connected to the server via a dedicated line instead of the communication network 10 may be used. Hereinafter, the operations of the car navigation device 110, the server device, and the client device will be described in detail.

FIG. 2 is a block diagram showing the configuration of the car navigation device 110. 2, a car navigation device 110 includes a communication unit 111, an information processing unit 112, a map data storage unit 113, and an input unit 114.
, An output display unit 115, a vehicle position detection unit, and a traveling direction detection unit. The communication unit 111 includes the mobile phone 12
Data transmission / reception is performed with 0. The communication unit 111
The communication between the mobile phone 120 and the mobile phone 120 may be performed by wire or wireless. The information processing unit 112
It is configured by a CPU, a memory, and the like, and performs route search and the like. The map data storage unit 113 stores map data. The input unit 114 inputs a product list acquisition request or a product order according to a user's specification. Output display unit 115
Displays a map including a store location and a product list.
The vehicle position detection unit 116 detects the current position of the vehicle. The traveling direction detector 117 detects the direction of the traveling direction of the vehicle.

FIG. 3 is a block diagram showing the configuration of the server device 300. In FIG. 3, the server device 300
A communication unit 301, an information processing unit 302, and an integrated database 303 are provided. The communication unit 301 includes the communication network 10
Sends and receives data to and from. The information processing unit 302
Based on the data received by the communication unit 301, a product list to be transmitted to the user is generated, a product is ordered from the client server, and the like. Details of the operation of the information processing unit 302 will be described later. Integrated database 303
Is a database that stores information about each store and products placed in each store.

FIG. 4 is a block diagram showing the configuration of the client device 400. 4, the client device 400 includes a communication unit 401, an information processing unit 402, and a product database 403. Communication unit 401
Transmits and receives data to and from the communication network 10. The information processing unit 402 generates reservation number data and the like based on the order data received from the server device 300. The product database 403 is a database that stores information on products placed in each store. Details of the operation of the client device 400 will be described later.

Next, the configuration of each database stored in server device 300 and client device 400 will be described. Integrated database 30 of server device 300
3 stores a stock table, a store table, and a product management table. FIG. 5 is a diagram illustrating an example of the structure of the stock table. As shown in FIG. 5, the inventory table is
The store code, the product code, the unit price, and the stock quantity are stored in association with each other. FIG. 6 is a diagram illustrating an example of the structure of the store table. As shown in FIG. 6, the store table stores a store code, a store position, and a store name in association with each other. By using the store table, it is possible to refer to the store position and the store name from the store code. FIG.
FIG. 4 is a diagram showing an example of the structure of a product management table. As shown in FIG. 7, the product management table includes a product code,
The product classification is stored in association with the product name. By using the product management table, it is possible to refer to the product classification and the product name from the product code. In the server device 300 and all the client devices, the product code is uniquely determined by the product code.

Next, the configuration of a store product table stored in the product database 403 will be described. FIG.
It is a figure showing an example of the structure of a store goods table. As shown in FIG. 8, the store product table stores a product code, a unit price, and a stock quantity in association with each other. In addition, the product database 403 holds a store code uniquely assigned to each client device from the server device 300.

Next, the process of changing the inventory table stored in the integrated database 303 of the server device 300 will be described. When the unit price or the stock quantity of the product is changed in the store product table stored in the product database 403, the client device 400 stores the store code, the product code, and the unit price of the changed product in the server device 300. Send to FIG. 9 is a diagram illustrating an example of update data transmitted from the client device to the server device when changing data relating to a product. The update data is data including a store code, a product code, and unit price information. The update data shown in FIG. 9 is update data transmitted from the client device to the server device when the unit price of the product having the product code of A0002 is changed to 480 in the client device having the store code of 0001. The server device 300 receives the update data and updates the inventory table. Through the above processing, the server device 300 can hold the latest information in all the client devices.

Next, a description will be given of processing in the product search system when a store and a product are searched from the car navigation device 110 and a product is ordered. FIG. 10 is a diagram illustrating a communication sequence of the product search system. First, the user operates the input unit 114 of the car navigation device 110.
Is used to input a product list acquisition request. In response, the car navigation device 110 transmits the vehicle position data to the server device 300 via the mobile phone 120 (step S901). Here, the list request data is data including a user ID, a position of the own vehicle, and a traveling direction. FIG. 11 is a diagram illustrating an example of the list request data transmitted to the server device 300 in the process of step S901. The list request data shown in FIG.
The user ID is 3333, the vehicle position is north latitude 36 degrees 07 minutes,
This is list request data transmitted when the traveling direction is southwest at 140 degrees 10 minutes east longitude. In the present embodiment, the reason why the list request data includes the data of the traveling direction is as follows.
This is to reduce the amount of information that the server device searches. By reducing the information amount of the search, the server device can shorten the search time. The list request data may not include the data of the traveling direction. When the car navigation device is performing route guidance, the list request data may be data including guidance route information.

In step S901, the information processing unit 302 of the server 300 receiving the list request data
By referring to the store table, a store near the user's own vehicle position and in the traveling direction is searched and selected. Further, the information processing unit 302 generates a list of products whose stock quantity is not 0 by referring to the product management table. The generation of the product list in the information processing unit 302 will be described later. When the vehicle position data includes the guide route information, the information processing unit 302 may search for a store on the route.

Server device 300 that has generated a product list
Transmits the product list to the car navigation device 110 via the mobile phone 120 (step S902). FIG. 12 is a diagram illustrating an example of a product list transmitted from the server device 300 to the car navigation device 110 via the mobile phone 120. As shown in FIG. 12, the product list includes a store code, a product code, a product classification, a product name, a unit price, and inventory. The product list shown in FIG. 12 is a product list transmitted when the store code 0001 is selected.

The car navigation device 110 that has received the product list displays the product list using the output display unit 115. Here, it is desirable to display the product list in a tree structure using the product classification code. In addition,
There is no need to display the store code, product code, and stock quantity.

If the user wants to purchase a product in the displayed product list, the car navigation device 11
A product order is input using the input unit 114 of “0”. The car navigation device 110 transmits the order data to the mobile phone 1
20 to the server device (step S20).
903). Here, the order data is data including a user ID, a store code, a product code, and a quantity. FIG. 13 is a diagram illustrating an example of order data transmitted from the car navigation device 110 to the server device 300 via the mobile phone 120. The order data shown in FIG. 13 is the order data transmitted when the user ID 3333 and the product code B0001 are reserved for two products.

Server device 300 receiving the order data
Transmits the order data to a predetermined client device (step S904). Here, the predetermined client device is a client device indicated by the store code in the product list transmitted in step S902. FIG. 14 is a diagram illustrating an example of order data transmitted from the server device 300 to the client device 400. As shown in FIG. 14, the order data is a user ID
, A product code, and a quantity.

Client device 4 that has received the order data
00 transmits the order confirmation data to the server device 300 (step S905). Here, the order confirmation data is data including a user ID, a store code, and a reservation number. FIG. 15 is a diagram illustrating an example of order confirmation data transmitted from the client device 400 to the server device 300. The order confirmation data shown in FIG. 15 is the order confirmation data transmitted when the reservation number is 15.

Server device 30 that has received the order confirmation data
0 transmits the reservation confirmation data to the car navigation device 110 via the mobile phone 120 (step S).
906). Here, the reservation confirmation data includes a store code, a store position, a store name, a reservation number, and an amount. FIG. 16 is a diagram illustrating an example of reservation confirmation data transmitted from the server device 300 to the car navigation device 110 via the mobile phone 120. The reservation confirmation data shown in FIG. 16 indicates that the store location is 35 degrees 30 minutes north latitude 08
Second, 139 degrees 27 minutes 21 seconds east, the store name is XX, the reservation number is 15, and the amount including consumption tax is 220. This is the reservation confirmation data transmitted.

The car navigation device 110 that has received the reservation confirmation data displays the completion of the reservation on the output display unit 115, and guides the route to the store using the reservation confirmation data. It should be noted that the reservation number may be viewable on the mobile phone 120 even outside the vehicle. In addition, it is desirable that the store position is displayed by a marker on a map without displaying the north latitude and the east longitude as numerical data. As described above, according to the present embodiment, product information can be obtained in real time, an order can be made and a reservation can be made, and the cost can be known while the user is in a car. Further, according to the present embodiment, it is possible to display a guide to the nearest store in the traveling direction with a necessary product in stock.

Next, the information processing section 30 of the server device 300
The process of selecting a store for generating a product list in item 2 will be described. FIG. 17 is a flowchart illustrating a flow of processing in the information processing unit 302 when selecting a store for generating a product list. FIG. 17 shows processing performed by the information processing unit 302 between the processing in step S901 and the processing in step S902 shown in the sequence diagram of FIG. Therefore, the product list generation process in the information processing unit 302 is started when the communication unit 301 of the server device 300 receives the list request data transmitted from the car navigation device 110 via the mobile phone 120.

In FIG. 17, first, the information processing section 302
Specifies one store to select a store for generating a product list (step S9011). Step S90
The process 11 is performed by selecting one store code from store codes stored in the store table. Next, the information processing unit 302 determines whether or not the store specified by the process of step S9011 is within a predetermined range from the position of the user's own vehicle (step S9).
012). Here, the predetermined range is determined in advance by the server device 30.
0 or set by the car navigation device. The determination in step S9012 is performed by comparing the data of the store position in the store table with the data of the own vehicle position included in the list request data received by server device 300.

If it is determined in step S9012 that the specified store is not within a predetermined range from the position of the user's own vehicle, the information processing section 302 proceeds to step S901.
Step 5 is performed. On the other hand, in step S9012,
When it is determined that the specified store is within a predetermined range from the user's own vehicle position, the information processing unit 302 determines whether the specified store is in the traveling direction of the automobile on which the user rides (step S9013). ). Step S9013
Is determined by the data of the store position in the store table,
This is performed by comparing the data of the own vehicle position and the data of the traveling direction included in the list request data received by the server device 300.

If it is determined in step S9013 that the specified store is not in the traveling direction of the automobile on which the user is riding, the information processing section 302 performs the process of step S9015. On the other hand, if it is determined in step S9013 that the specified store is in the traveling direction of the car on which the user rides, the information processing unit 302 generates a product list for the specified store (step S9014). The generation of the product list in step S9014 is performed using an inventory table, a store table, and a product management table stored in the integrated database 303. Information processing unit 3
02 searches for a product code in the stock table, and specifies a product having a product code whose stock data is not 0. further,
The information processing unit 302 uses the inventory table, the store table, and the product management table for the specified product,
The product code, product classification, product name, unit price, and inventory data are associated with each other. As described above, the information processing unit 302
Generate a product list.

After step S9014, the information processing section 30
2 judges whether or not the processing of steps S9011 to S9014 has been performed for all the stores (step S). Step S901 for all stores
If the processing of steps 1 to S9014 has not been performed, the information processing unit 302
014 is repeated. On the other hand, when the processes of steps S9011 to S9014 have been performed for all stores, the information processing unit 302 ends the process. Through the above processing, a store is selected, and a product list is generated for the selected store. In the present embodiment,
Before performing the search, the server device excludes facility information that the user may not need. After that, the server device searches only facility information that may be needed by the user, and specifies information to be transmitted to the user. Thereby, the information to be searched can be reduced, and the server device can shorten the search time.

In the above embodiment, step S902
Has described the case where the server device 300 has selected one store, the server device 300 may select a plurality of stores and generate a product list. Further, the user may select a store. In step S902, the case where the car navigation device 110 acquires the product list each time has been described. However, the product list of the frequently used store is recorded in the memory of the car navigation device 110 or the mobile phone 120, and only the update data is stored. It may be configured to acquire. Each data structure shown in FIGS. 10 to 16 is not limited to this, and for example, the product list may include location information of a store.

Although the case where the own vehicle position data is transmitted only in step S901 has been described, the own vehicle position data may be transmitted as appropriate. If the server device 300 is configured to predict the arrival time at the store by following the position of the automobile, cooking can be started by applying to a restaurant or a fast food store, so that the waiting time of the user can be reduced. can do.

Although the present embodiment has been described with reference to a case where there is one server device, a configuration in which a plurality of server devices are connected to the communication network 10 may be employed. Further, the service center including the server device 300 and the client device 400 is not limited to being installed in each affiliated store such as a convenience store, a restaurant or a fast food store. For example, the client device 4
If 00 is set up in a hospital, even if a person becomes sick in a place where there is no guesswork, he can search for a hospital that is open around his own vehicle position. If the client device 400 is installed at a gas station, the price of gasoline at a plurality of gas stations near the own vehicle position can be compared. In this case, the information may be displayed on the display device of the car navigation device 110 in order of price.

Also, in the present embodiment, the car navigation device has transmitted the product list acquisition request.
In another embodiment, the car navigation device comprises:
Further, an acquisition request including a search condition may be transmitted. In this case, the server device performs a search according to the transmitted search condition. For example, the car navigation device may request a product list for a specific type of product. Even in such a form,
By selecting a store near the current position before the search, the search time in the server device can be shortened.

In another embodiment, the information retrieval system may have no client device. That is, the server device manages information about each store, and when there is an order from the user, the server device may receive an order from the store and confirm the reservation.

[0042]

According to the information retrieval system and the server device of the present invention, based on the position information of the own vehicle position transmitted from the car navigation device to the server device, the information of the facility located away from the own vehicle position is obtained. Is not transmitted to the car navigation device. Therefore, the information search system according to the present invention does not transmit information that the user does not need,
Only the information required by the user can be transmitted.
Further, according to the present invention, since the server device does not transmit unnecessary information, the amount of information to be transmitted can be reduced, and the transmission time can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a product search system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the car navigation device 110.

FIG. 3 is a block diagram showing a configuration of a server device 300.

FIG. 4 is a block diagram showing a configuration of a client device 400.

FIG. 5 is a diagram showing an example of the structure of a stock table.

FIG. 6 is a diagram illustrating an example of the structure of a store table.

FIG. 7 is a diagram illustrating an example of the structure of a product management table.

FIG. 8 is a diagram showing an example of the structure of a store product table.

FIG. 9 is a diagram illustrating an example of update data transmitted from a client device to a server device when data relating to a product is changed.

FIG. 10 is a diagram showing a communication sequence of the product search system.

FIG. 11 is a diagram illustrating an example of list request data transmitted to the server device 300 in the process of step S901.

FIG. 12 is a diagram showing an example of a product list transmitted from the server device 300 to the car navigation device 110 via the mobile phone 120.

FIG. 13 is a diagram showing an example of order data transmitted from the car navigation device 110 to the server device 300 via the mobile phone 120.

FIG. 14 shows a flow chart from the server device 300 to the client device 40.
It is a figure showing an example of order data transmitted to 0.

FIG. 15 shows a flow chart from the client device 400 to the server device 30.
It is a figure showing an example of order confirmation data transmitted to 0.

FIG. 16 is a diagram showing an example of reservation confirmation data transmitted from the server device 300 to the car navigation device 110 via the mobile phone 120.

FIG. 17 is a flowchart showing a flow of processing in an information processing unit 302 when selecting a store for generating a product list.

[Explanation of symbols]

 Reference Signs List 10 communication network 110 car navigation device 111 communication unit 112 information processing unit 113 map data storage unit 114 input unit 115 output display unit 116 own vehicle position detection unit 117 traveling direction detection unit 120 mobile phone 200: automobile 300: server devices 301, 401 ... communication units 302, 402 ... information processing unit 303: integrated database 400 ... client device 403 ... product database

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08G 1/09 G08G 1/09 F 1/0969 1/0969 G09B 29/00 G09B 29/00 A 29/10 29/10 A F term (reference) 2C032 HB05 HB22 HB25 HC08 HC13 HD04 2F029 AA02 AC02 AC04 AC09 AC13 AC16 5B075 KK07 ND20 PP10 PQ46 5H180 AA01 BB05 EE02 FF03 FF13 FF14 FF22 FF27 FF38

Claims (5)

[Claims] 1. An information search system including a server device for providing facility information via a network in response to a request from a car navigation device, wherein the car navigation device detects a current position of a vehicle. Means, and a transmission request unit for transmitting the facility information acquisition request and the vehicle position information detected by the vehicle position detection means, wherein the server device comprises: the facility information including facility position information. A facility information storage unit for storing the facility information acquisition request and the vehicle position information transmitted from the car navigation device, and the facility information based on the location information stored in the facility information storage unit. Of the facility information stored in the storage unit, the facility information of facilities within a predetermined range from the current location of the vehicle, and in response to the acquisition request An information search system, comprising: a facility information specifying unit that specifies the facility information that has been transmitted; and a facility information transmitting unit that transmits the facility information specified by the facility information specifying unit to the car navigation device. 2. The facility information specifying unit stores the vehicle information in the facility information storage unit based on the vehicle position information transmitted from the car navigation device and the position information stored in the facility information storage unit. A facility selection section for selecting facility information of facilities within a predetermined range from the current location of the car, and a facility information selected by the neighborhood facility selection section, thereby searching the car information. The information search system according to claim 1, further comprising: a search unit that specifies facility information corresponding to an acquisition request transmitted from the navigation device. 3. The car navigation device further includes a traveling direction detection unit that detects a traveling direction of the vehicle, wherein the transmission requesting unit is configured to acquire the facility information, the own vehicle position information, and the traveling direction. Transmitting the traveling direction information detected by the detecting unit, the nearby facility selecting unit, the own vehicle position information and traveling direction information transmitted from the car navigation device,
Based on the location information stored in the facility information storage unit, of the facility information stored in the facility information storage unit, within a predetermined range from the current location of the car, and in the traveling direction of the car 3. The information retrieval system according to claim 2, wherein certain facility information is selected. 4. The facility information selected by the nearby facility selection unit includes store information on a store, and the facility information storage unit stores, for each of the stores, store position information indicating a store position; The search unit stores product information indicating the placed product and stock information indicating the stock quantity of the product, and stores the store information selected by the nearby facility selection unit in the facility information storage unit. Searching for the stock information of the product placed in the store, thereby specifying the product information of the product whose stock quantity is not 0, and the facility information transmitting unit transmits the product information specified by the search unit. The information retrieval system according to claim 2 or 3, wherein the information is transmitted to the car navigation device. 5. A server device for providing facility information via a network in response to a request from a car navigation device, wherein the facility information storage unit stores the facility information including location information of the facility; The facility information acquisition request and the vehicle position information transmitted from the device, and, based on the position information stored in the facility information storage unit, of the facility information stored in the facility information storage unit, The facility information relating to facilities within a predetermined range from the current location of the car, and a facility information specifying unit that specifies facility information according to the acquisition request, the facility information specified by the facility information specifying unit, A server device comprising: a facility information transmitting unit that transmits to a car navigation device.