JP2011055034A - Portable terminal, route calculation system and method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal and a route calculation method that can calculate route information from the portable terminal to a target object without using GPS nor a base station. <P>SOLUTION: The portable terminal 10 includes a reception unit 141 which receives specification of an article 20 given an IC tag 21 from a user, an article position acquisition unit 142 which receives position information on the specified article 20 from a DB server 30, an IC tag information reception control unit 143 which receives information stored in the IC tag 21 positioned within a predetermined range from the portable terminal 10, a terminal position specifying unit 144 which receives the position information on the article 20 corresponding to the received information stored in the IC tag 21 from the DB server 30, and defines the position information as position information on the portable terminal 10, a route calculation unit 145 which calculates route information from the portable terminal 10 to the specified article 20 based upon the position information on the specified article 20 and the position information on the portable terminal 10, and a display unit 12 which displays the calculated route information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile terminal, a route calculation system, and a method thereof. In particular, a mobile terminal, a route calculation system, and a route calculation system for calculating route information to an item specified by a user among items placed on a predetermined floor and provided with an IC tag for storing position information on the predetermined floor Regarding the method.

Conventionally, there has been proposed a method of acquiring position information of a mobile terminal possessed by a user and calculating route information from the mobile terminal to a destination designated by the user.
In this method, using GPS (Global Positioning System), the position information of the portable terminal possessed by the user is acquired (for example, Patent Document 1), or communication is performed with the base station of the portable terminal. The position information of the mobile terminal is acquired by a method for acquiring the position information (for example, Patent Document 2).
According to these proposals, accurate position information of the mobile terminal can be acquired using GPS or a base station of the mobile terminal.

Japanese Patent Laid-Open No. 2008-122092 JP 2001/083231 A

  However, according to the above proposal, the location information of the mobile terminal cannot be acquired in a place where the mobile terminal cannot communicate with the GPS or the base station. For this reason, route information from the portable terminal to the destination cannot be calculated in a place where communication with the GPS or the base station is not possible.

  The present invention relates to a mobile terminal, a route calculation method, and a mobile terminal capable of specifying the position information of the mobile terminal without using a GPS or a base station and calculating the route information based on the position information and the position information of the object It aims to provide a method.

  The present invention provides the following solutions.

  (1) A portable terminal that calculates route information to an article designated by a user among articles arranged on a predetermined floor and attached with an IC tag, and accepting means for accepting designation of the article from the user Information of the designated article is transmitted to the server, and the article position acquisition means for receiving the position information of the article from the server, and the IC tag located within a predetermined range from the portable terminal. IC tag information receiving means for receiving information, and the article information stored in the received IC tag is transmitted to the server, the position information of the article is received from the server, and the position information is transferred to the mobile phone. A route from the mobile terminal to the specified article based on the terminal position specifying means as the terminal position information, and the specified position information of the article and the position information of the portable terminal Mobile terminal to a route calculating means for calculating a distribution, and a display means for displaying the route information, a display control unit for controlling the display of the route information on the display unit, comprising: a.

  According to the portable terminal described in (1), the information on the designated article is transmitted to the server by the article position acquisition means, the position information on the article is received from the server, and the portable information is received by the IC tag information receiving means. The information stored in the IC tag located within the predetermined range is received from the terminal, the information on the article stored in the received IC tag is transmitted to the server by the terminal position specifying means, and the article is received from the server. The position information of the mobile terminal is received, and the position information of the mobile terminal is used as the position information of the mobile terminal. Calculate information.

  Thus, since the position information of the article acquired from the server based on the information of the article stored in the IC tag is used as the position information of the portable terminal, the position information of the portable terminal is not used by the GPS or the base station. Further, the route information can be calculated based on the position information of the portable terminal and the position information of the article as the object.

  (2) The mobile terminal according to (1), wherein the IC tag information receiving unit is periodically executed.

According to the portable terminal described in (2), since the IC tag information receiving means is periodically executed, the position information of the portable terminal is also periodically specified, and the route information from the portable terminal to the designated article is obtained. It will be updated from time to time.
Therefore, the user can always check the latest route information and easily search for the designated article.

  (3) An imaging unit that captures a scene around the portable terminal, an image synthesis unit that combines position information of the specified article with the scene captured by the imaging unit, and the portable terminal Direction detection means for detecting the direction in which the mobile terminal is located, and the display control means determines a traveling direction to the designated article based on the direction in which the mobile terminal is facing and the route information, The portable terminal according to (1) or (2), wherein the display unit displays the traveling direction and the scenery combined by the image combining unit.

According to the portable terminal described in (3), the display control unit determines the traveling direction to the designated article based on the direction in which the portable terminal is facing and the route information, and the traveling direction and the image composition The scenery synthesized by the means is displayed on the display means.
Therefore, the user who possesses the portable terminal can easily reach the designated article while confirming an image in which the article designated in the scenery imaged by the imaging unit is synthesized.

  (4) A route calculation method for calculating route information to an item designated by a user among items placed on a predetermined floor and attached with an IC tag, and displaying the route information on a display unit included in the mobile terminal. Receiving a designation of the article from the user, transmitting information of the designated article to the server, receiving position information of the article from the server, and being located within a predetermined range from the portable terminal Receiving the information stored in the IC tag, transmitting the received article information stored in the IC tag to the server, receiving the article position information from the server, and receiving the position information; The position information of the portable terminal, the position information of the specified article and the position information of the portable terminal, the specified thing from the portable terminal Route calculation method which comprises a step of calculating the route information up to the step of displaying the calculated the route information on the display means.

  According to such a method, the same effect as in (1) can be expected by performing the method.

  (5) A mobile terminal possessed by the user, an IC tag which is given to an article placed on a predetermined floor and stores information on the article, and route information from the portable terminal to the article designated by the user is calculated. And a server for transmitting to the portable terminal, wherein the portable terminal transmits from the user an accepting unit that accepts designation of the article, and transmits information on the designated article to the server. The first transmission means, the IC tag information receiving means for receiving the information stored in the IC tag located within a predetermined range from the portable terminal, and the article information stored in the received IC tag. Second transmission means for transmitting to a server, wherein the server receives storage information for storing the position information of the article and information on the designated article from the portable terminal. A first receiving means, an article position specifying means for acquiring position information of the designated article from the storage means based on the received information of the designated article, and an article stored in the IC tag Based on the received information on the article stored in the IC tag, the second receiving means for receiving the information from the portable terminal, the position information of the article is obtained from the storage means, and the position information is obtained. Route information from the portable terminal to the specified article is calculated based on the terminal position specifying means that is the position information of the portable terminal, the position information of the specified article and the position information of the portable terminal. Route calculating means; and route information transmitting means for transmitting the calculated route information to the portable terminal, wherein the portable terminal receives route information from the server; And a display means for displaying the received route information.

According to such a system, the route information from the portable terminal to the designated article is calculated based on the designated article position information and the portable terminal position information.
Therefore, since the mobile terminal does not need to calculate route information, the load on the mobile terminal can be reduced.

  According to the present invention, it is possible to calculate the route information based on the position information and the position information of the target object by specifying the position information of the mobile terminal without using the GPS or the base station.

It is a figure showing composition of route display system 1 concerning a 1st embodiment. It is a flowchart which shows the flow of a process until the display part 12 of the portable terminal 10 which concerns on 1st Embodiment displays route information. It is a figure which shows the example of a display when route information is displayed on the display part 12 which concerns on 1st Embodiment. It is a figure which shows the structure of 1 A of route display systems which concern on 2nd Embodiment. It is a figure which shows the structure of the route display system 1B which concerns on 3rd Embodiment.

[First Embodiment]
Hereinafter, a first embodiment will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration of a route display system 1 according to the first embodiment.

  The route display system 1 includes a mobile terminal 10 held by a user who has visited a predetermined floor, a plurality of articles 20 arranged on the predetermined floor, and an IC (Integrated Circuit) assigned to each of the plurality of articles 20. ) A tag 21 and a database (hereinafter referred to as a DB) server 30 that stores the article 20 on a predetermined floor and the position information of the article 20 in association with each other.

  The mobile terminal 10 displays an operation unit 11 that accepts a direct input from the user, and displays information related to the function of the mobile terminal 10 or displays route information from the mobile terminal 10 to the article 20 specified by the user. Unit 12, various programs (not shown) for causing the mobile terminal 10 to function, a storage unit 13 for storing a program (not shown) for executing the functions of the present invention, and the functions related to the mobile terminal 10. And a communication unit 15 that communicates with the IC tag 21 and the DB server 30. In addition to the functions described above, the mobile terminal 10 has functions related to the mobile phone such as a function of communicating with the base station of the mobile terminal 10 and a call function, but details thereof are omitted.

  The control unit 14 includes a reception unit 141 as a reception unit that receives designation of the article 20 from the user, and an article position acquisition unit 142 as an article position acquisition unit that acquires position information of the specified article 20 from the DB server 30. IC tag information reception control unit 143 as IC tag information receiving means for receiving information of IC tag 21, terminal position specifying unit 144 as terminal position specifying means for specifying position information of mobile terminal 10, and mobile terminal 10 A route calculation unit 145 as route calculation means for calculating route information from the designated item 20 to the designated article 20, and a route display control unit 146 as display control means for displaying the calculated route information on the display unit 12. .

  The accepting unit 141 accepts designation of the article 20 to which the IC tag 21 is attached from the user via the operation unit 11. Specifically, the accepting unit 141 accepts the designation of the article 20 by inputting the name of the article 20 through the operation unit 11.

  When the article position acquisition unit 142 accepts the designation of the article 20 by the accepting unit 141, the article position acquisition unit 142 transmits information on the article 20 designated to the DB server 30 via the communication unit 15, and the designated article is received from the DB server 30. 20 position information and a floor map of a predetermined floor are received via the communication unit 15. In this floor map, the position of each passage on a predetermined floor is stored as node information, and this node information is used by the route calculation unit 145.

  In addition, when the specified article 20 does not exist on the predetermined floor, the article position acquisition unit 142 receives error information from the DB server 30 and indicates that the specified article 20 does not exist on the predetermined floor. It is displayed on the display unit 12.

  The IC tag information reception control unit 143 receives information stored in the IC tag 21 located within a predetermined range from the mobile terminal 10 via the communication unit 15. The received information includes the name of the article 20 and the article code.

  The IC tag information reception control unit 143 periodically receives information stored in the IC tag 21 every 1 second, every 3 seconds, or the like. The IC tag information reception control unit 143 terminates the reception in response to receiving information from any of the plurality of IC tags 21 in the periodic reception. That is, the IC tag information reception control unit 143 receives the information stored in the IC tag 21 only once within a time interval of every 1 second or every 3 seconds.

  In addition, the IC tag information reception control unit 143 ends the periodic reception in response to the operation unit 11 receiving a predetermined operation related to the end of the route display. Thereby, a series of processes related to the route display is completed.

  The terminal position specifying unit 144 acquires the position information of the article 20 from the DB server 30 based on the information of the article 20 included in the information stored in the received IC tag 21, and stores the position information in the mobile terminal. 10 position information. That is, the terminal position specifying unit 144 transmits the received information on the article 20 stored in the IC tag 21 to the DB server 30, receives the position information on the article 20 from the DB server 30, and receives the received information. The obtained position information is set as the position information of the mobile terminal 10.

  The route calculation unit 145 calculates route information from the portable terminal 10 to the designated article 20 based on the position information of the designated article 20 and the position information of the portable terminal 10. More specifically, the route calculation unit 145 registers the position information of the mobile terminal 10 as the start point and the position information of the designated article 20 as the goal point with respect to the node information stored in the floor map, Route information is calculated by a route search algorithm. As this route search algorithm, a route search algorithm such as Dijkstra method or A * (A-star, Aster) is used.

The communication unit 15 communicates with the IC tag 21 and the DB server 30. Specifically, the communication unit 15 includes an IC chip and an antenna for performing contactless communication with the IC tag 21, and a communication adapter for performing communication with the DB server 30.
When receiving information from the IC tag 21 by the IC tag information reception control unit 143, the communication unit 15 receives the information so that the information is limited to the IC tag 21 located within 1 meter from the portable terminal 10. The strength is adjusted.

  The DB server 30 stores information on the article 20 on the predetermined floor (name of the article 20) and position information on the article 20 in association with each other. The DB server 30 stores these associated information in advance. The DB server 30 includes a server-side communication unit (not shown), and performs transmission / reception with the mobile terminal 10 through the server-side communication unit.

  When the DB server 30 receives information on the article 20 such as the name and article code of the article 20 from the portable terminal 10, the DB server 30 extracts the position information of the article 20 corresponding to the received information and transmits this position information to the portable terminal 10. To do.

[Processing flow]
FIG. 2 is a flowchart showing a process flow until the display unit 12 of the mobile terminal 10 according to the first embodiment displays the route information.

In step S <b> 11, the control unit 14 (accepting unit 141) receives the designation of the article 20 to which the IC tag 21 is attached when the user inputs the name of the article 20 through the operation unit 11.
In step S12, the control part 14 (article position acquisition part 142) will transmit the information of the goods 20 designated to DB server 30 via the communication part 15, if the designation | designated of the goods 20 is received in step S11. To do.

In step S <b> 13, the control unit 14 (article position acquisition unit 142) receives information from the DB server 30. Specifically, the control unit 14 (article position acquisition unit 142) determines the information on the designated article 20, that is, the position information on the designated article 20, and the floor map of a predetermined floor or error information. Receive.
In step S14, the control unit 14 (article position acquisition unit 142) determines whether the received information is the position information and floor map of the designated article 20. If this determination is YES, the process moves to step S15, and if NO, the process moves to step S22.

In step S15, the control unit 14 (IC tag information reception control unit 143) determines whether or not a predetermined operation related to the end of the route display has been received. If this determination is YES, the process of displaying the route information is terminated, and if NO, the process proceeds to step S16.
In step S16, the control unit 14 (IC tag information reception control unit 143) determines whether or not a predetermined period has elapsed since the information stored in the IC tag 21 was received last time. If this determination is YES, the process proceeds to step S17, and if NO, the process of step S16 is executed again.
In step S <b> 17, the control unit 14 (IC tag information reception control unit 143) receives information stored in the IC tag 21 located within a predetermined range from the mobile terminal 10.

In step S18, the control unit 14 (terminal position specifying unit 144) receives the position information of the article 20 from the DB server 30 based on the information of the article 20 included in the information of the IC tag 21 received in step S17. .
In step S19, the control unit 14 (terminal position specifying unit 144) specifies the position of the portable terminal 10 using the position information of the article 20 received from the DB server 30 in step S18 as the position information of the portable terminal 10.

In step S <b> 20, the control unit 14 (route calculation unit 145) calculates route information from the portable terminal 10 to the designated article 20 based on the position information of the designated article 20 and the position information of the portable terminal 10. .
In step S21, the control unit 14 (route display control unit 146) causes the display unit 12 to display the route information calculated in step S20. When this process ends, the process proceeds to step S16.

  In step S22, the control unit 14 (article position acquisition unit 142) causes the display unit 12 to display that the designated article 20 does not exist on the predetermined floor.

[Display example]
FIG. 3 is a diagram illustrating a display example when route information is displayed on the display unit 12 according to the first embodiment.
In FIG. 3, a predetermined floor map 121 in the bookstore when the IC tag 21 is attached to the bookstore book as the article 20 is shown on the display unit 12. The floor map 121 includes a symbol 121A indicating the position information of the mobile terminal 10, a symbol 121B indicating the position information of the book as the article 20 specified by the user, and the mobile terminal 10 to the book specified by the user. A broken line 121C indicating route information is shown. That is, since the route information from the symbol 121A indicating the mobile terminal 10 to the symbol 121B indicating the book specified by the user can be confirmed, the user can easily search for the book specified by the user.

According to the above invention, there are the following effects.
(1) The article position acquisition unit 142 transmits the information of the designated article 20 to the DB server 30 to receive the position information of the article 20 from the DB server 30, and the IC tag information reception control unit 143 causes the portable terminal The information stored in the IC tag 21 within the predetermined range of 10 is received, and the terminal location specifying unit 144 transmits the information of the article 20 stored in the received IC tag 21 to the DB server 30, and DB The position information of the article 20 is received from the server 30, and the position information is set as the position information of the portable terminal 10. The route information from the terminal 10 to the designated article 20 is calculated.

  Thus, since the position information of the article 20 acquired from the DB server 30 is used as the position information of the mobile terminal 10 based on the information of the article 20 stored in the IC tag 21, the position information of the mobile terminal 10 is set to GPS. In addition, the route information can be calculated based on the location information of the mobile terminal 10 and the location information of the designated article 20 without using the base station.

(2) Since the IC tag information reception control unit 143 is periodically executed, the location information of the mobile terminal 10 is also periodically specified, and the route information from the mobile terminal 10 to the designated article 20 is updated as needed. Will be.
Therefore, the user who possesses the portable terminal 10 can always check the latest route information and easily search for the designated article 20.

[Second Embodiment]
FIG. 4 is a diagram showing a configuration of a route display system 1A according to the second embodiment of the present invention.
In the present embodiment, the position information of the designated article 20 is synthesized by the image synthesis unit 147 with the scenery around the portable terminal 10A captured by the imaging unit 16, and the synthesized image is displayed by the route display control unit 146A. Unlike the first embodiment, the display unit 12 displays the traveling direction to the designated article 20 on the basis of the direction of the mobile terminal 10A and the route information. Is the same as in the first embodiment.

  That is, the portable terminal 10A of the route display system 1A of the present embodiment is designated for the imaging unit 16 as an imaging unit that captures the scenery around the portable terminal 10A, and the scenery captured by the imaging unit 16. An image composition unit 147 serving as an image composition unit that composes the position of the article 20 as an air tag, and a direction detection unit 17 serving as a direction detection unit that detects the direction in which the mobile terminal 10A is facing are provided.

The imaging unit 16 is configured by a lens or the like, and images a scene around the portable terminal 10A that has passed through the lens.
The image composition unit 147 synthesizes the position information of the designated article 20 in real time with the scenery imaged by the imaging unit 16.

The direction detection part 17 is comprised by the geomagnetic sensor etc., and detects the direction obtained from the geomagnetism which this geomagnetic sensor detects.
The route display control unit 146A specifies the position information of the article 20 with respect to the portable terminal 10A based on the direction of the portable terminal 10A detected by the direction detection unit 17 and the position information of the designated article 20. Then, the route display control unit 146A causes the display unit 12 to display a landscape (image) obtained by combining the position information of the article 20 as an air tag, and causes the display unit 12 to display the traveling direction to the designated article 20.

According to the above invention, there are the following effects.
(3) The route display control unit 146A determines the traveling direction to the designated article 20 based on the direction of the mobile terminal 10A and the route information, and the traveling direction and the scenery synthesized by the image composition unit, Is displayed on the display unit 12.
Therefore, the user possessing the mobile terminal 10 </ b> A can easily reach the designated article 20 while confirming an image in which the designated article 20 is combined with the scenery captured by the imaging unit 16 on the display unit 12.

[Third Embodiment]
FIG. 5 is a diagram showing a configuration of a route display system 1B according to the third embodiment of the present invention.
The present embodiment is different from the first embodiment in that the DB server 30B calculates route information and transmits this route information to the mobile terminal 10B.

  That is, the DB server 30B of the route display system 1B according to the present embodiment includes the server-side storage unit 31 as a storage unit that stores the position information of the article 20, the information on the article 20 specified by the portable terminal 10B, and the IC tag. A server side communication unit 32 as a first receiving means, a second receiving means and a route information transmitting means for receiving the information of the article 20 stored in the mobile terminal 10B from the mobile terminal 10B and transmitting the route information to the mobile terminal 10B; The article position acquisition unit 33 as article position acquisition means for acquiring the position information of the specified article 20 received from the server side communication unit 32 from the server side storage unit 31, and the IC tag received by the server side communication unit 32 21, based on the information of the article 20 stored in 21, the position information of the article 20 is acquired from the server-side storage unit 31, and this position information is stored in the mobile terminal 10 </ b> B. Based on the position information of the terminal position specifying unit 34 as position information and the position information of the designated article 20 and the position information of the portable terminal 10B, a route calculation section that calculates route information from the portable terminal 10B to the designated article 20 35.

  The control unit 14 of the mobile terminal 10B receives the IC tag information reception that receives information stored in the reception unit 141 that receives the designation of the article 20 and the IC tag 21 that is located within a predetermined range from the mobile terminal 10B. A control unit 143 and a route display control unit 146 that causes the display unit 12 to display route information are provided. The communication unit 15 functions as a first transmission unit, a second transmission unit, and a route information reception unit. The communication unit 15 is connected to the information of the designated article 20 and the IC tag 21 located within a predetermined range from the portable terminal 10B. The stored information is transmitted to the DB server 30B, and the route information from the DB server 30 to the designated article 20 is received from the mobile terminal 10B.

According to the above invention, there are the following effects.
(4) The DB server 30B calculates route information from the portable terminal 10B to the designated article based on the position information of the designated article 20 and the position information of the portable terminal 10B.
Therefore, since the mobile terminal 10B does not need to calculate route information, the load on the mobile terminal 10B can be reduced.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

  For example, in the third embodiment, the DB server 30B has the function of storing the position information of the article 20 and calculating the route information. However, the present invention is not limited to this, and a plurality of servers are provided to provide the DB server 30B. Each function of the server may be distributed to a plurality of servers.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Path | route display system 10, 10A, 10B Portable terminal 11 Operation part 12 Display part 13 Memory | storage part 14 Control part 15 Communication part 16 Imaging part 17 Direction detection part 20 Article 21 IC tag 30, 30B DB server 31 Server side Storage unit 32 Server side communication unit 33, 142 Article position acquisition unit 34, 144 Terminal position specifying unit 35, 145 Route calculation unit 141 Reception unit 143 IC tag information reception control unit 146, 146A Route display control unit

Claims (5)

A mobile terminal that calculates route information to an article designated by a user among articles placed on a predetermined floor and provided with an IC tag.
Accepting means for accepting designation of the article from a user;
Article position acquisition means for transmitting information on the specified article to a server and receiving position information of the article from the server;
IC tag information receiving means for receiving information stored in an IC tag located within a predetermined range from the portable terminal;
Terminal position specifying means for transmitting the received information of the article stored in the IC tag to the server, receiving the position information of the article from the server, and using the position information as the position information of the portable terminal; ,
Route calculating means for calculating route information from the portable terminal to the designated article based on the designated position information of the article and the position information of the portable terminal;
Display means for displaying the route information;
Display control means for performing display control of the route information on the display means;
A portable terminal comprising:   The mobile terminal according to claim 1, wherein the IC tag information receiving unit is periodically executed. Imaging means for imaging the scenery around the mobile terminal;
Image synthesizing means for synthesizing the position information of the designated article with respect to the scenery imaged by the imaging means;
Direction detecting means for detecting the direction in which the mobile terminal is facing, and
The display control means determines a traveling direction to the specified article based on a direction in which the mobile terminal is facing and the route information, and the scenery synthesized by the traveling direction and the image composition means. The portable terminal according to claim 1, wherein the display unit displays the message. A route calculation method for calculating route information to an item designated by a user among items placed on a predetermined floor and provided with an IC tag and displaying the route information on a display unit included in the mobile terminal,
Receiving a designation of the article from a user;
Transmitting information on the specified article to a server and receiving position information of the article from the server;
Receiving information stored in an IC tag located within a predetermined range from the mobile terminal;
Transmitting the received information of the article stored in the IC tag to the server, receiving the position information of the article from the server, and setting the position information as the position information of the mobile terminal;
Calculating route information from the portable terminal to the designated article based on the designated position information of the article and the position information of the portable terminal;
Displaying the calculated route information on the display means;
A route calculation method comprising: A mobile terminal possessed by the user, an IC tag that is given to an article placed on a predetermined floor and stores information on the article, and calculates route information from the mobile terminal to the article designated by the user, A route calculation system comprising: a server for transmitting to a mobile terminal;
The portable terminal is
Accepting means for accepting designation of the article from the user;
First transmitting means for transmitting information on the designated article to the server;
IC tag information receiving means for receiving information stored in an IC tag located within a predetermined range from the portable terminal;
Second transmission means for transmitting the received information of the article stored in the IC tag to the server,
The server
Storage means for storing position information of the article;
First receiving means for receiving information on the designated article from the portable terminal;
Based on the received information on the designated article, article position specifying means for acquiring position information on the designated article from the storage means;
Second receiving means for receiving information about the article stored in the IC tag from the portable terminal;
Terminal position specifying means for acquiring position information of the article from the storage means based on the received information of the article stored in the IC tag, and using the position information as position information of the portable terminal;
Route calculating means for calculating route information from the portable terminal to the designated article based on the designated position information of the article and the position information of the portable terminal;
Route information transmitting means for transmitting the calculated route information to the mobile terminal,
The portable terminal is
Route information receiving means for receiving the route information from the server;
Display means for displaying the received route information, a route calculation system comprising:

Images