JP2007248308A - Route search device, route search method, route search program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a route with high profit for a user, in response to the variations in the prices of articles in shops. <P>SOLUTION: A route search device 100 is constituted of a variation information acquisition part 101, a determination part 102, a search part 103, and a position acquisition part 104. The variation information acquisition part 101 acquires variation information of the prices of the articles in the shops selling the articles. The determination part 102 determines whether the articles are purchased, based on the variation information acquired by the variation information acquisition part 101. The search part 103 searches for the route up to the shops, when it is determined that the articles will be purchased by the determination part 102. The position acquisition part 104 acquires the present position of own device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a route search device, a route search method, a route search program, and a recording medium for searching for a moving route of a moving object. However, use of the present invention is not limited to the above-described route search device, route search method, route search program, and recording medium.

  2. Description of the Related Art Conventionally, there is known a route guidance device that calculates an optimal shopping route for purchasing food and the like and guides a user according to the calculated shopping route. In such a route guidance device, shopping that contains information about the ingredients that are lacking to cook the menu selected by the user and information about the quantity, and the name and location of the store that sells the ingredients. Create a list. Then, referring to the created shopping list, an optimal shopping route for purchasing food is calculated, and the user is guided according to the calculated route.

  Thereby, the user can purchase the product described in the shopping list reliably and efficiently. In addition, it is possible to prevent the foodstuff from being unnecessarily purchased even though the refrigerator has the foodstuff (see, for example, Patent Document 1 below).

JP 2005-172743 A

  However, according to the above-described conventional technology, there is an example in which price information that fluctuates every day for each store that sells products cannot be reflected in route calculation. In supermarkets that sell daily necessities, prices of products such as “Daily Service”, “Time Service”, “Monthly Special Price” fluctuate every day (or every hour), and if these fluctuation information cannot be reflected, price information The accuracy of will decrease.

  In particular, groceries and daily necessities are purchased almost every day, and there is a strong demand for purchasing the same items as cheaply as possible. For example, daily necessities may be purchased in bulk if the price is significantly lower than the normal price, even if the inventory is not exhausted. In addition, there are cases in which a plurality of stores are visited at the time of one purchase and purchased at a store with the lowest price for each product. In this way, although the price of the product is one of the factors that determine which store the product is purchased at, the conventional technology cannot reflect the fluctuating price information. An example of the problem is that it cannot be provided.

  In order to solve the above-described problems and achieve the object, a route search device according to the invention of claim 1 includes a fluctuation information acquisition unit that acquires fluctuation information of a price of the article in a store that sells the article, and the fluctuation information. Based on the fluctuation information acquired by the acquisition unit, a determination unit that determines whether or not to purchase the article at the store, and a route to the store when the determination unit determines to purchase the item. And a search means for searching.

  According to a sixth aspect of the present invention, there is provided a route search method based on the fluctuation information acquisition step of acquiring fluctuation information of the price of the article at a store selling the article, and the fluctuation information acquired by the fluctuation information acquisition step. A determination step for determining whether or not to purchase the article at the store, and a search step for searching for a route to the store when the determination step determines that the item is to be purchased. Features.

  A route search program according to a seventh aspect of the invention causes a computer to execute the route search method according to the sixth aspect.

  A recording medium according to an eighth aspect of the present invention is readable by a computer in which the route search program according to the seventh aspect is recorded.

  Exemplary embodiments of a route search device, a route search method, a route search program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
First, a functional configuration of the route search apparatus 100 according to the embodiment will be described. FIG. 1 is a block diagram of a functional configuration of the route search apparatus according to the embodiment. The route search apparatus 100 includes a fluctuation information acquisition unit 101, a determination unit 102, a search unit 103, and a position acquisition unit 104.

  The fluctuation information acquisition unit 101 acquires price fluctuation information of an article at a store that sells the article. The fluctuation information is information including the difference between the normal price of the article and the current selling price, for example. For example, the difference between the previous day's sales price and today's sales price may be used. The fluctuation information may be information related to all products sold in the store, or may be information related to only products having a difference from the normal price.

  Based on the variation information acquired by the variation information acquisition unit 101, the determination unit 102 determines whether or not to purchase an article at the store from which the variation information has been acquired. The determination unit 102 includes a threshold value input unit 102a, a presentation unit 102b, and an instruction input unit 102c. The threshold value input unit 102a receives a price threshold value for purchasing an article by the user. The presentation unit 102b presents the fluctuation information to the user. The instruction input unit 102c receives an instruction input as to whether or not to purchase an article by the user as a result of the change information presented by the presentation unit 102b.

  For example, when the price of the article indicated by the fluctuation information is lower than the threshold value input to the threshold value input section 102a, the determination section 102 determines to purchase the article at the store that acquired the fluctuation information. Further, when the instruction input unit 102c receives an instruction input from the user to purchase an article, the determination unit 102 determines to purchase the article at the store from which the variation information has been acquired.

  When the determination unit 102 determines that the article is to be purchased, the search unit 103 searches for a route to the store. For example, the search unit 103 searches for a route from the point designated by the user to the store. Further, for example, a route from the current position of the own device acquired by the position acquisition unit 104 described later to the store is searched.

  The position acquisition unit 104 acquires the current position of the own device. When the current position is acquired by the position acquisition unit 104, the determination unit 102 acquires the variation information based on the current position of the own device and the position of the store acquired by the position acquisition unit 104 together with the variation information. To determine whether or not to purchase the item. For example, if the difference between the normal price and the current sales price is smaller than the gasoline cost or transportation cost when moving from the current position to the store, it is not determined to purchase the article.

  Further, the fluctuation information acquired by the fluctuation information acquisition unit 101 may include information regarding price fluctuations according to time zones. Price fluctuations in the time zone are, for example, price fluctuations in daily units, price fluctuations in a predetermined time zone (for example, from 10:00 to 11:00, etc.), weekly or monthly price changes. It is a fluctuation. In this case, the determination unit 102 determines whether or not to purchase the article for which the variation information has been acquired, and at what time zone to purchase the article, and the search unit 103 determines to purchase the article using the determination unit 102. The route that arrives at the store by the specified time zone is searched.

  Next, route search processing by the route search device 100 will be described. FIG. 2 is a flowchart showing a procedure of route search processing by the route search device. In the flowchart of FIG. 2, the route search device 100 first receives an input of a threshold value for a price for purchasing an article by the threshold value input unit 102a (step S201).

  Until the fluctuation information is acquired by the fluctuation information acquisition unit 101 (step S202: No), the process returns to step S201, and the subsequent processing is repeated. When the fluctuation information is acquired (step S202: Yes), it is determined whether or not the price of the article indicated by the fluctuation information is below the threshold value input in step S201 (step S203).

  If it falls below the threshold (step S203: Yes), the process proceeds to step S206. On the other hand, if it is not below the threshold (step S203: No), the fluctuation information is presented to the presentation unit 102b (step S204), and whether or not an instruction input for purchasing the article has been made via the instruction input unit 102c. Is determined (step S205).

  If there is an instruction input (step S205: Yes), it is determined that the product is to be purchased (step S206), a route to the store where the product is purchased is searched (step S207), and the processing according to this flowchart is terminated. On the other hand, when there is no instruction input (step S205: No), it is determined that the product is not purchased (step S208), the process returns to step S202, and the subsequent processing is continued.

  In the flowchart of FIG. 2, when the threshold value is below the threshold value in step S203 (see step S203: Yes), it is determined that the product is to be purchased as it is (see step S206). You may decide to purchase a product. Further, when the value does not fall below the threshold (see step S203: No), the user may not be confirmed to purchase the product (see steps S204 and S205), and may be determined not to purchase the product as it is. Further, it may be determined whether or not to purchase a product only by inputting an instruction from the user without receiving a threshold value.

  As described above, according to the route search device 100, it is determined whether or not to purchase an article based on the price fluctuation information of the article, and the route to the store to purchase is searched. As a result, it is possible to purchase an article without missing an opportunity such as a price change of the article or a discount.

  Further, by using a price threshold value input in advance by the user for determining whether or not to purchase an article, it is possible to quickly determine whether or not to purchase an article when fluctuation information is acquired. Further, by using the input result of the user's instruction input for determining whether or not to purchase an article, it is possible to determine whether or not to purchase an article with more respect for the user's will.

  Further, by taking into account the current position of the device and the position of the store in determining whether to purchase the article, the user's profit due to price fluctuations does not fall below the user's burden when moving to the store. It can be determined whether or not. Furthermore, it is possible to more flexibly cope with price fluctuations in a store by searching for a route in consideration of the time zone when it arrives at the store.

(System configuration of special price information providing system 300)
Next, an example of the route search device 100 according to the above-described embodiment will be described. FIG. 3 is an explanatory diagram illustrating a system configuration of the special price information providing system according to the embodiment. A special price information providing system 300 according to the embodiment includes a store information management server 310 and a navigation device 320. The store information management server 310 and the navigation device 320 are connected via a network 340.

  The store information management server 310 is installed in each store that sells products, and provides the location, contact information, parking lot information, and the like of each store. Further, the store information management server 310 provides price information of products sold in the store. Price information includes special price information indicating the price of each product at normal times and special price information indicating a special price for a limited period. The special price information is distributed to the navigation device 320 about several days or once a day, like a newspaper flyer, and includes special price products and prices for the most recent period. Further, urgent special price information such as “rainy day sale” is distributed to the navigation device 320 each time.

  The navigation device 320 is mounted on a vehicle 330 traveling on the road L. The navigation device 320 searches for and guides a route to the destination, and receives special price information from the store information management server 310 via the network 340. Further, if necessary, the store information management server 310 can be accessed to acquire the location and contact information of each store, parking lot information, normal price information, and the like.

  The navigation device 320 can designate a store that receives the special price information. The store may be specified by searching for each store, for example, or specifying the location area of the store. Moreover, it is good also as being able to restrict | limit the number of special price information delivered on the 1st.

  The navigation device 320 accepts registration of a threshold value (bottom price) for purchasing a product from the user. When the navigation device 320 receives the special price information from the store information management server 310, the navigation device 320 compares the bottom price for each product registered in advance and determines whether the bottom price product is included. And the judgment result whether the received special price information and bottom price goods are included is shown to a user, and it is made to judge whether goods are purchased in the store which received special price information.

  When it is determined by the user that the product is to be purchased, the navigation device 320 searches for a route to the store. For example, when the product to be purchased is a time service product, the route is searched so as to arrive at the store within the time service time. Thereby, the user can purchase without missing a special price product.

(Hardware configuration of navigation device 320)
Next, the hardware configuration of the navigation device 320 will be described. FIG. 4 is a block diagram illustrating a hardware configuration of the navigation apparatus. In FIG. 4, the navigation device 320 includes a CPU 401, a ROM 402, a RAM (memory) 403, a magnetic disk drive 404, a magnetic disk 405, an optical disk drive 406, an optical disk 407, and an audio I / F (interface) 408. A microphone 409, a speaker 410, an input device 411, a video I / F 412, a camera 413, a display 414, a communication I / F 415, a GPS unit 416, and various sensors 417. Each component 401 to 417 is connected by a bus 420.

  First, the CPU 401 governs overall control of the navigation device 320. The ROM 402 records programs such as a boot program, a communication program, a database creation program, and a data analysis program. The RAM 403 is used as a work area for the CPU 401.

  The magnetic disk drive 404 controls the reading / writing of the data with respect to the magnetic disk 405 according to control of CPU401. The magnetic disk 405 records data written under the control of the magnetic disk drive 404. As the magnetic disk 405, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 406 controls the reading / writing of the data with respect to the optical disk 407 according to control of CPU401. The optical disc 407 is a detachable recording medium from which data is read according to the control of the optical disc drive 406. As the optical disc 407, a writable recording medium can be used. In addition to the optical disk 407, the removable recording medium may be an MO, a memory card, or the like.

  Another example of information recorded on the magnetic disk 405 and the optical disk 407 is map data used for route search and route guidance. The map data includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road. The map data is displayed on the display screen of the display 414 in two dimensions or three dimensions. Drawn. When the navigation device 320 is guiding a route, the map data and the current location of the vehicle acquired by the GPS unit 416 described later are displayed in an overlapping manner.

  The audio I / F 408 is connected to a microphone 409 for audio input and a speaker 410 for audio output. The sound received by the microphone 409 is A / D converted in the sound I / F 408. In addition, sound is output from the speaker 410. Note that the voice input from the microphone 409 can be recorded on the magnetic disk 405 or the optical disk 407 as voice data.

  Examples of the input device 411 include a remote controller including a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like. Further, the input device 411 can be connected to another information processing terminal such as a digital camera or a mobile phone terminal to input / output data.

  The video I / F 412 is connected to a camera 413 for video input and a display 414 for video output. Specifically, the video I / F 412 includes, for example, a graphic controller that controls the entire display 414, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 414 is configured by a control IC that controls display.

  The camera 413 captures images inside and outside the vehicle 330 and outputs it as image data. An image captured by the camera 413 can be recorded on the magnetic disk 405 or the optical disk 407 as image data. The display 414 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 414, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 415 is connected to the network 340 via wireless and functions as an interface between the navigation device 320 and the CPU 401. The communication I / F 415 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 401.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 415 includes, for example, a wireless communication device and receives special price information distributed from the store information management server 310.

  The GPS unit 416 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle 330 (current location of the navigation device 320). The output information of the GPS unit 416 is used when the current position of the vehicle is calculated by the CPU 401 together with output values of various sensors 417 described later. The information indicating the current location is information for specifying one point on the map data, such as latitude / longitude and altitude.

  Various sensors 417 output information that can determine the position and behavior of the vehicle 330, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 417 are used for the calculation of the current location by the CPU 401 and the measurement of the amount of change in speed and direction.

  The hardware configuration of the management server 310 is at least the CPU 401, the ROM 402, the RAM (memory) 403, the magnetic disk drive 404 (or the optical disk drive 406), and the magnetic disk 405 of the hardware configuration of the navigation device 320. (Or optical disc 407) and communication I / F 415.

  In the configuration of the route search apparatus 100 according to the embodiment, the fluctuation information acquisition unit 101 is based on the communication I / F 415, the determination unit 102 is based on the CPU 401, and the threshold value input unit 102a and the instruction input unit 102c are based on the input device 411. The presenting unit 102b realizes the respective functions by the video I / F 412 and the display 414, and the position acquisition unit 104 by the CPU 401, the GPS unit 416, and various sensors 417.

(Route search process by the navigation device 320)
Next, route search processing by the navigation device 320 will be described. The navigation device 320 determines the presence / absence of a bottom commodity from the special price information received from the store information management server 310 and presents it to the user. The user can purchase a special price product without monitoring the special price information that changes every day.

  FIG. 5 is a flowchart showing a procedure of route search processing when special price information is received. In the flowchart of FIG. 5, the navigation device 320 first receives registration of commodity bottom price information from the user (step S <b> 501). The bottom price information of a product is a threshold value of a price that is considered to “purchase a product regardless of whether it is in stock if it is below this price”. The bottom price information may be input by the user via the input device 411, or may be calculated by the CPU 401 using information on the user's past shopping history, for example.

  Next, the navigation device 320 determines whether or not special sale information has been received from the store information management server 310 (step S502). Until the sale information is received (step S502: No), the process returns to step S501 and the subsequent processing is continued.

  When the sale information is received (step S502: Yes), it is compared with the bottom price information registered in step S501 (step S503), and it is determined whether there is a product that is below the bottom price (step S504). When there is a product that is below the bottom price (step S504: Yes), the fact that there is a bottom price product is notified together with the special price information (step S505). Thereby, the user can easily know that there is a product that is greatly discounted than usual in this store.

  At this time, the current position of the vehicle 330 may be calculated by the CPU 401 using the output value from the GPS receiver 416, and the position of the store that received the special sale information may be compared with the current position of the vehicle 330. . Then, considering whether the difference between the normal price and the current selling price or the difference between the bottom price registered in step S501 and the current selling price exceeds the gasoline fee or toll road fee, the bottom price is set. It is good also as judging whether it is less. That is, it may be determined whether or not there is a profit enough for the user to use the vehicle 330 to purchase the product.

  On the other hand, when there is no product below the bottom price (step S504: No), special price information is displayed (step S506). The special price information and the bottom price product are notified by screen display of special price information, voice output, and the like.

  Then, as a result of notifying the special price information, it is determined whether or not the user has a willingness to purchase the product (step S507). The presence / absence of the purchase intention of the product is determined based on, for example, whether or not an input instruction for purchasing the product has been issued from the user via the input device 411. The purchase intention of a product may be specified and input a product to be purchased, or may be confirmed only by whether or not to stop at the store.

  If there is a purchase intention of the product (step S507: Yes), it is determined whether or not the product purchased by the user is a time service product (step S508). If it is a time service product (step S508: Yes), a drive plan that arrives at the store within the time service time is presented (step S509), and the processing according to this flowchart ends. If it is not a time service product (step S508: No), the route from the current position to the store is presented (step S510), and the processing according to this flowchart is terminated. When traveling toward another destination point, the route is re-searched so as to stop at the store on the route to the destination point or on the way back to the destination point.

  Through the processing as described above, the navigation device 320 determines whether the received bargain item is included in the received special price information, and provides information so that the user does not miss buying the lower item.

  FIG. 6 is an explanatory diagram illustrating a display example of special price information. In FIG. 6, the recently received special price information 600 is displayed on the display 414 of the navigation device 320. The special price information 600 includes a price information display unit 610 that displays the name and price of a product that is a special price, and a store information display unit 620 that displays business hours when the special price information 600 is transmitted.

  The price information display unit 610 is composed of daily special price information 611, special price information 612 for each time period, and special price information 613 for several days. As for the price of each product, in addition to the current sales price, a difference from the normal price, a reference price or the like may be displayed for a product whose price is likely to fluctuate, such as fresh products. Further, as a result of collation with the bottom price information, a bottom price mark 614 is displayed on a product determined to be below the bottom price, and the user can confirm the presence / absence of the bottom price product at a glance.

  The store information display unit 620 displays store hours and parking lot information. When the map display button 621 is pressed, a map to the store is displayed. When the detailed information button 622 is pressed, detailed information such as the parking lot arrangement of the store and a guide map in the store is displayed. Further, the fuel cost information display unit 623 displays the gasoline cost when traveling from the current location or the user's home to this store. Thereby, it is possible to perform shopping in consideration of the cost for going to the store and the cost to be raised by purchasing the special price item.

  When the reception history display button 630 is pressed, the special price information received in the past is displayed. Further, when the purchase button 631 is pressed, it can be shown that there is a willingness to purchase a product at this store. When the cancel button 632 is pressed, it can be shown that there is no intention to purchase the product at this store.

  In the flowchart of FIG. 5, a series of processing is started by receiving special price information (see step S502) as a trigger. For example, when the user starts traveling for shopping, the user desires purchase. A series of processes may be started by causing the navigation device 320 to input a product.

  FIG. 7 is a flowchart showing a procedure of route search processing at the time of shopping. In the flowchart of FIG. 7, the navigation device 320 first receives registration of commodity bottom price information from the user (step S <b> 701). Moreover, the special price information transmitted by the shop information management server 310 is received (step S702). The received special price information is stored in the magnetic disk 405 of the navigation device 320 or the like.

  Until information (purchased item information) of an item to be purchased in the current shopping is input from the user who is going to go shopping (step S703: No), the process returns to step S701 and the subsequent processing is continued. When the purchased article information is input (step S703: Yes), the navigation device 320 collates the special price information received in advance (the normal price information of each store for products not included in the special price information) ( In step S704), a recommended route that allows the most economical shopping is searched (step S705).

  Next, the special price information is compared with the bottom price information registered in step S701, and it is determined whether there is a product below the bottom price (step S706). The stores for which it is determined whether there is a bottom commodity may be only stores included in the recommended route, or may be all stores that have received special price information. If there is a product below the bottom price (step S706: Yes), the recommended route searched in step S705 is presented and a notification that there is a bottom price product is provided (step S707).

  If there is no product below the bottom price (step S706: No), the recommended route searched in step S705 is presented (step S708), and the processing according to this flowchart ends.

  When the recommended route is presented in step S707 and it is informed that there is a bottom price product, it is determined whether or not the user has an intention to purchase the bottom price product (step S709). If there is a purchase intention (step S709: Yes), the recommended route is re-searched in consideration of the store where the bottom price product is purchased (step S710), the recommended route is re-presented (step S711), and processing according to this flowchart is performed. Exit. If the user does not intend to purchase the bottom commodity (step S709: No), the process according to this flowchart is terminated as it is.

  As described above, according to the special price information providing system 300, by receiving the special price information in real time, it is possible to cope with the time service and the like and to minimize the missed purchase of the special price product. The navigation device 320 can search for the shortest route to reach the store. In particular, even when there are a plurality of stores to stop by, it is possible to shop efficiently.

  Further, by notifying the presence / absence of the bottom price product based on the bottom price information registered in advance, it is possible to reduce the monitoring burden of the special price information transmitted every day. Furthermore, by confirming the purchase intention of the product with the user, it is possible to search for a shopping route with more respect for the user's intention.

  In addition, by considering the cost of gasoline from the current position of the vehicle 330 to the store, it is confirmed whether or not the profit of the user by purchasing the special price product is less than the burden on the user when moving to the store. be able to. Furthermore, it is possible to more flexibly cope with price fluctuations in a store by searching for a route in consideration of the time zone when it arrives at the store.

  The route search method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows the functional structure of the route search apparatus concerning embodiment. It is a flowchart which shows the procedure of the route search process by a route search apparatus. It is explanatory drawing which shows the system configuration | structure of the special price information provision system concerning an Example. It is a block diagram which shows the hardware constitutions of a navigation apparatus. It is a flowchart which shows the procedure of the route search process at the time of special price information reception. It is explanatory drawing which shows the example of a display of special price information. It is a flowchart which shows the procedure of the route search process at the time of shopping.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Route search apparatus 101 Fluctuation information acquisition part 102 Judgment part 102a Threshold input part 102b Presentation part 102c Instruction input part 103 Search part 104 Position acquisition part

Claims (8)

Fluctuation information acquisition means for acquiring fluctuation information of the price of the article at a store that sells the article;
Determination means for determining whether to purchase the article at the store based on the fluctuation information acquired by the fluctuation information acquisition means;
Search means for searching for a route to the store if the determination means determines that the article is to be purchased;
A route search apparatus comprising:   The determination means includes threshold value input means for inputting a threshold value of a price for purchasing the article by a user, and when the price of the article indicated by the variation information is lower than the threshold value input to the threshold value input means, The route search device according to claim 1, wherein it is determined that an article is purchased at the store.   The determination means includes a presentation means for presenting the fluctuation information to a user, and an instruction input for inputting an instruction input as to whether or not to purchase the article by the user as a result of the fluctuation information being presented by the presentation means. 3. The route search apparatus according to claim 1, further comprising: a means for determining that the article is to be purchased at the store when an instruction is input when the article is purchased in the instruction input unit. It has a position acquisition means for acquiring the current position of its own device,
The determination means determines whether to purchase the article at the store based on the current position of the device acquired by the position acquisition means and the position of the store along with the variation information. The route search device according to any one of claims 1 to 3. The fluctuation information includes information on fluctuations in the price by time zone,
The determination means determines whether to purchase the article at the store, and at what time zone to purchase the article.
The route search according to any one of claims 1 to 4, wherein the search means searches for a route arriving at the store by a time zone determined by the determination means to purchase the article. apparatus. Fluctuation information acquisition step of acquiring fluctuation information of the price of the article at a store that sells the article;
A determination step of determining whether or not to purchase the article at the store based on the variation information acquired by the variation information acquisition step;
When it is determined that the article is purchased by the determination step, a search step for searching for a route to the store;
The route search method characterized by including.   A route search program causing a computer to execute the route search method according to claim 6. A computer-readable recording medium on which the route search program according to claim 7 is recorded.

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