JP2011209249A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device appropriately displaying discount information of a toll road according to the time and date and the like.SOLUTION: The navigation device includes an acquisition means for acquiring road map data; a time information acquisition means for acquiring date and time information; a discount condition acquisition means for acquiring a discount condition including discount information of a toll road; a determination means for determining a discounted region whose toll is discounted, in the toll road based on the acquired date and time information and discount information; and a display means for displaying the acquired road map data in such a manner that the determined discounted region is identifiable. The discounted region is displayed such that a free region R1a and discounted regions R2a and R2b can be identified with balloons F1, F2 and F3 indicating a discount rate, a free period and the like.

Description

  The present invention relates to a navigation device, and more particularly to display of information related to tolls on toll roads.

  The navigation device detects a vehicle position using a GPS satellite or a self-contained navigation sensor, and displays road map data around the vehicle position on a display. When a route to the destination is searched, the searched route is synthesized and displayed on the road map data, and guidance to the destination is performed. When a route search to a destination is performed, a plurality of route candidates are presented according to conditions such as distance priority, time priority, and expressway priority, and a user selects a desired route from among them.

  In Patent Document 1, when a route is searched under a condition that gives priority to a free road, a free section of a toll road is extracted, and a route search via the free section is enabled. In addition, such a free section is displayed so that it can be distinguished from a section of a toll road. Furthermore, regarding the display forms of free roads and toll roads, Patent Document 2 displays only highways when the highway priority display form is selected, and only general roads when the general road priority display form is selected. Is displayed.

JP 2006-98143 A JP 2007-24762 A

  The toll system for expressways and toll roads may be changed as appropriate depending on national and local government policies or the judgment of the operating company. For example, on holidays (holidays, Saturdays, Sundays), discounts are applied to certain sections of the highway or certain sections are made free. In addition, toll roads in tourist areas are discounted for tolls during the off-season for sightseeing purposes, or free in early morning or at night. Furthermore, when a plurality of personnel are boarded in one vehicle for the purpose of reducing traffic congestion, the toll for a bridge or the like may be discounted and free depending on the time of day. In this way, the user cannot know all when toll road discounts and free roads will be applied, so the user can choose what route is better in terms of time and cost. I cannot judge.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a navigation device that can appropriately display toll road discount information according to the date and time.

  A navigation device according to the present invention has a function of guiding a route to a destination, and includes an acquisition unit that acquires road map data, a time information acquisition unit that acquires date and time information, and a discount on a toll road Discount condition acquisition means for acquiring discount conditions including information, determination means for determining discount target sections to be discounted on toll roads based on acquired date and time information and acquired discount conditions, and acquired road map data Display means for displaying so that the determined discount target section is identified.

  Preferably, the display means changes a display mode of the discount target section according to the discount information. Preferably, the discount information includes information related to a discount rate for tolls on toll roads, and the display means changes a display color of a discount target section according to the discount rate. Preferably, the display means displays the section to be freed among the discount target sections so as to be identified. Preferably, the display means further displays characters indicating the discount rate of the discount target section. The display means may further display characters indicating a period or time zone during which the discount is applied for the discount target section. Preferably, the discount condition acquisition means includes update means for updating the discount condition. Preferably, the determination unit determines whether or not the discount condition of the discount target section has changed with time, and the display unit updates the display of the discount target section according to the changed discount condition. The navigation device may further include warning means for giving a warning to that effect when it is determined that the discount condition of the discount target section has changed.

  Preferably, the navigation device further includes search means for searching for a route to the destination, and when the plurality of recommended routes are searched by the search means, the determination means includes whether the discount target section is included in the plurality of recommended routes. The display means displays a search result screen on which discount information of the discount target section is identified on the recommended route to the destination. Preferably, the display means displays, on the search result screen, a toll when no discount is applied when traveling on each recommended route and a toll when a discount is applied. Preferably, the display means identifies and displays the search route from the discount target section when the search route is synthesized and displayed on the road map data. The said time information acquisition means can acquire time information based on a user's input. The time information acquisition means can acquire time information based on the date and time the host vehicle is traveling.

  The road map data display method in the navigation device according to the present invention includes a step of acquiring road map data, a step of acquiring date and time information, a step of acquiring discount conditions including discount information of toll roads, and A step for determining a discount target section to be discounted for a toll road based on date and time information and the acquired discount condition, and a display so that the determined discount target section is identified when displaying the acquired road map data A step of performing. The road map data display program executed by the navigation apparatus also has the same steps as described above.

  According to the present invention, it is possible to know the situation of a toll road to which a discount is applied according to the date and time. Furthermore, it is possible to grasp at a glance what kind of discount the discount target section is carrying out. Thereby, the user can drive | work the road which is satisfied in time and cost.

It is a block diagram which shows the structure of the navigation apparatus which concerns on the Example of this invention. It is a figure explaining the link data of the navigation apparatus of a present Example. It is a flowchart explaining the display operation | movement of the road map data of the navigation apparatus which concerns on 1st Example of this invention. It is a figure which shows the example of a date input screen. It is a figure explaining the example which determines the display mode of a discount object link. FIGS. 6A and 6B show display examples of road map data in the discount display mode. FIG. 6A shows an example of holidays and FIG. 6B shows an example of weekdays. It is a flowchart explaining the display operation | movement of the road map data of the navigation apparatus which concerns on 2nd Example of this invention. It is a flowchart explaining the display operation | movement of the road map data of the navigation apparatus which concerns on 3rd Example of this invention. It is an example of the destination input screen. It is an example of the display screen which shows a route search result. It is a flowchart explaining the update operation | movement of the congestion condition of a toll road in the navigation apparatus which concerns on 4th Example of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a navigation device that can be mounted on a vehicle is illustrated. The toll road used in this specification includes not only a highway but also a motorway, a capital expressway, and the like. In addition, the toll discount may include not only a case where a certain discount is applied but also a free case where a 100% discount is applied.

  FIG. 1 is a block diagram showing a configuration of a navigation device according to an embodiment of the present invention. The navigation device 10 of this embodiment includes an in-vehicle bus interface (I / F) 20 that receives various data from the vehicle side, a GPS receiver 30 that receives a signal from a GPS satellite, and detects the position of a moving body, and a VICS center. VICS receiver 40 that receives road traffic information distributed from, an input unit 50 that receives input from the user, a communication control unit 60 that performs data communication with an external device or a network outside the vehicle, etc. via wireless or wired, large capacity A storage unit 70 including a storage medium, a time generation unit 72 for generating current time information, a voice output unit 80 for outputting voice guidance or the like from the speaker 82, a display control unit 90 for displaying a road map screen or the like on the display 92, Program memory 100 for storing programs, data memory 110 for temporarily storing data, and executing programs It configured to include a control unit 120 for controlling each part in.

  The bus I / F 20 receives a signal detected by a self-contained navigation sensor (for example, a vehicle speed sensor, an acceleration sensor, a gyro sensor, etc.), a signal indicating on / off of parking of the own vehicle, and provides this to the control unit 120. To do. Further, as necessary, the bus I / F 20 acquires information on the current date and time from a clock or calendar information mounted on the vehicle, and provides this to the control unit 120. The VICS receiver 40 receives real-time traffic jam information and regulation information distributed from the VICS center side through optical beacons, radio beacons, FM multiplex broadcasting, and the like, and provides them to the control unit 120. The input unit 50 includes an operation (touch) panel 52 provided alongside the display 92, a voice input unit 54 that enables input by voice, and a remote controller 56, and provides these input signals to the control unit 120.

  The communication control unit 60 enables data communication with a portable terminal device via infrared communication, Bluetooth, USB cable, etc., or accesses an external server via a network to perform data communication, Internet communication, etc. To. Preferably, as will be described later, the latest road map data, toll road discount information, and the like are downloaded from an external server or the like, and the road map data and toll road discount information stored in the storage unit 70 are updated.

  The storage unit 70 stores a map database necessary for navigation. The road map data includes link data for identifying roads, node data for identifying intersections, facility data for identifying POIs such as facilities, and the like. The link data includes road type, road name, width, regulation, coordinates of start node and end node, and the like. The intersection node includes information indicating a connection relationship with the start node and the end node of the link node and information such as an intersection type. The facility data includes information on various facilities such as restaurants, gas stations, sightseeing spots, for example, the category (or genre) of the facility, landmarks (or icons) corresponding to the facility data, the coordinates of the facility, and the like. The map database stored in the storage unit 70 can be updated as appropriate using the communication control unit 60 or the like.

  FIG. 2 is a diagram for explaining the details of the link data of this embodiment. As shown in FIG. 2A, the link data includes road type data, and the road type data identifies whether the link belongs to a general road, an automobile exclusive road, or an expressway. Further, the link data includes discount target identification data for identifying whether or not a discount target link (section) is set when the link is an expressway or a dedicated road. If it is a discount target link, the flag is set to logic H, and if it is not a discount target link, the flag is set to logic L.

  In the case of a discount target link, a discount condition is associated as additional data of the link. The discount condition includes date and time information regarding the date and time when the discount is applied, and discount information regarding a discount rate and the like. The date / time information includes, for example, information such as a period during which a discount is applied, a day of the week, a time zone, a season, an on season, and an off season. The discount information includes information such as an applied discount rate or free of charge. For example, discount information on certain sections of toll roads, such as 30% discount on public holidays, free tolls on early morning and late night on weekdays, and free tolls during the off-season of tourist spots Is memorized.

  When the navigation device is activated, the time generation unit 72 generates information on the current time based on a signal from an internal timer backed up by a battery, and provides this to the control unit 120. When the current time cannot be obtained by the time generation unit 72, the current time can be acquired from another on-vehicle electronic device via the bus I / F 20.

  The program memory 100 reads the vehicle position detection program 102 for detecting the vehicle position based on the detection signal from the self-contained navigation sensor or the GPS receiver 30, and reads the road map data around the detected vehicle position from the storage unit 70. Is displayed on the display 92 via the display control unit 90, a discount target section determination program 106 for determining whether or not a discount target section is set on the toll road, and a discount target section is set. If so, a discount condition acquisition program 108 for acquiring discount conditions is provided. In addition to this, the program memory 100 is a program necessary for the navigation device, for example, a route search program that searches for and guides the optimum route from the vehicle position and other positions to the destination and the guidance route, and an external server. A map DB update program for downloading update data of road map data from is provided.

  The data memory 110 includes vehicle position information 112 received by the GPS receiver 30, road map data 114 read from the storage unit 70, data 116 related to the link of the discount target section determined by the discount target section determination program 106, discount The discount condition 118 related to the discount target link acquired by the condition acquisition program 108 is stored.

  Next, a road map display method of the navigation apparatus according to the embodiment of the present invention will be described with reference to the flowchart of FIG. As a premise, road map data around the vehicle position is read from the storage unit 70 in a state where the vehicle position is detected, and road map data around the vehicle position is displayed on the display by the road map display program 104. It shall be.

  First, when the menu screen or the like is operated to change the road map screen from the normal display mode to the discount display mode (step S101), the control unit 120 displays a date / time input screen for inputting the date / time on the display (step S101). ). FIG. 4 is an example of a date / time input screen. The user can input the date and time from the date and time input screen, and can know what discount is set on the toll road at the input date and time.

  Next, when the date / time is input from the date / time input screen, the control unit 120 extracts the link of the toll road from the road map data displayed on the display, and the discount target is included in the link of the toll road. It is searched whether or not the following link is included (step S103). Whether the link is a discount target can be determined by checking the discount target identification flag in FIG. 2 (see FIG. 2A).

  If there is a discount target link (hereinafter referred to as a discount target link), the control unit 120 determines whether or not a discount can be received at the input date and time (step S104). Even if the link is a discount target link, if the input date does not match the date of the discount condition, the discount cannot be received. For this reason, the control unit 120 reads the discount condition regarding the discount target link from the storage unit 70, compares the input date and time with the date and time condition included in the discount condition, and determines whether or not the discount is applied.

  Next, when it is determined that the discount target link satisfies the date and time condition, the control unit 120 extracts discount information of the discount target link (step S105). As shown in FIG. 2B, the discount information includes information such as a discount rate related to the discount target link.

  Next, the control unit 120 determines the display form of the discount target link based on the extracted discount information (step S106). In a preferred example, on the road map screen, it is possible to easily recognize at a glance which section of the toll road is subject to what discount. For example, the display color of the discount target link is changed according to the discount rate, or the display mode of the discount target link is changed according to the discount rate. In a more preferred example, characters and icons indicating the discount rate related to the discount target link are displayed in a balloon, and characters and icons indicating the period and time during which the discount is applied are displayed in a balloon.

  FIG. 5 is a table showing an example for determining the display form. In FIG. 5A, the discount target links are classified into three types, free, discount, and normal, based on the extracted discount information. Then, in the case of free, the link (section) is displayed in green, in the case where there is a certain discount, the link is displayed in blue, and in the case of a normal charge without discount, the link is displayed in red. By making the display color of the discount target link different, the discount contents of the discount target link can be easily recognized. Further, as shown in FIG. 5B, the discount target link display mode can use blinking or the like instead of changing the display color. For example, if it is free, the link is displayed with a fast blink, and if there is a discount, the link is displayed with a slow blink. Moreover, you may make it display a link by the combination of FIG. 5A and FIG. 5B. When displaying specific characters and icons such as a discount rate and discount period, the control unit 120 extracts text characters representing the discount information in FIG. 2B and displays them in a balloon display form.

  Next, the control unit 120 generates a road map screen around the vehicle position (step S107), and reflects discount information on the toll road in the road map data around the vehicle position. FIG. 6A is a display example of road map data on holidays. On the road map screen 200, the input date and time information 210 and the vehicle position mark M are displayed. Further, among the roads displayed on the screen 200, the toll road HW1 is identified and displayed (black display in the figure) for the section R1 where the toll is free. Further, in the balloon F1 related to the section R1, January 1-6, 2010 is displayed as a free period. Further, on the toll road HW2, a section R2 (hatching display in the figure) to which the discount is applied is identified and displayed. The balloon F2 relating to the section R2 displays 20% indicating the discount rate. Similarly, a section R3 to be discounted and its balloon F3 are displayed on the toll road HW3.

  On the other hand, FIG. 6B is a display example of road map data on weekdays in the same area as FIG. 6A. In the case of weekdays, there is no section where the toll is free on the toll road HW1, and instead, there is an identification display (indicated by hatching) that there is a section R1 to which a discount is applied. A balloon F1 indicating that the discount rate is 20% is displayed. The other toll roads HW2 and HW3 have no section to which the discount is applied, that is, the toll roads HW2 and HW3 are displayed in a normal display form. Thus, the discount target section of the toll road can be easily recognized from the display of the road map data.

  In the above example, the road map around the vehicle position is exemplified, but the present invention is not limited to this. For example, the user scrolls the road map screen, acquires the road map data of a desired area from the storage unit 70, displays the data, inputs date information from the date input screen, and pays in the area. You may make it display the discount condition of a road.

  Next, a second embodiment of the present invention will be described with reference to the flowchart of FIG. In the second embodiment, the toll road discount state can be recognized according to the current travel time of the vehicle. First, when the vehicle position is detected by a GPS receiver or a self-contained navigation sensor (step S201), the control unit 120 reads road map data around the vehicle position from the storage unit 70 (step S202). The road map data is usually divided into a plurality of leaflets and managed in leaflets. Based on the display scale of the road map data, the road map data of a plurality of figures including the figure where the vehicle position exists is read from the storage unit 70.

  Next, the control unit 120 acquires the current travel time of the vehicle from the time generation unit 72 or the bus I / F 20 (step S203), and then road map data (or read out) displayed on the display. A toll road link is extracted from a plurality of map road map data), and a search is made as to whether a discount target link exists in the toll road link (step S204). The processing after step S205 is the same as the processing after step S104 shown in FIG.

  As the vehicle moves, the road map screen is scrolled. When a toll road is newly displayed, it is determined whether or not the toll road is a discount target link. If there is, the display of the discount target link is updated so that the display form corresponds to the discount information. Further, when time elapses with the traveling of the host vehicle and the discount condition of the discount target link is changed, it is desirable that the control unit 120 gives a warning to the effect by voice or the like. Thereby, the user can know that the discount conditions of the toll road have changed.

  Next, a third embodiment of the present invention will be described with reference to the flowchart of FIG. In the third embodiment, a search result screen is displayed so that discount details of toll roads can be understood during route search.

  First, a destination input screen is displayed on the display (step S301). The destination input screen can be displayed, for example, by operating from the menu screen. FIG. 9 shows an example of a destination input screen. In the destination input screen, a departure point input box, a destination input box, and either a departure time or a destination arrival time are selected and a date is input. A box to be included. The destination and date and time are input by the user via the destination input screen (step S302).

  Next, the control unit 120 searches for a plurality of recommended routes from the departure point to the destination (step S303). The plurality of recommended routes include, for example, a condition that prioritizes distance, a condition that prioritizes time, a condition that prioritizes an expressway, and a condition that prioritizes cost.

  Next, the control unit 120 extracts a toll road from each recommended route, and further determines whether a discount target link is included in the toll road (step S304). When the discount target link is included, the control unit 120 determines whether or not the discount target link satisfies the date / time condition (step S305). If satisfied, the discount information of the discount target link is acquired (step S306), and the display form of the link is determined based on the discount information (step S307). Furthermore, when a toll road is included in the recommended route, the control unit 120 calculates a normal fee (no discount is applied) and a toll fee to which the discount is applied when it is assumed that the route travels (step S308). . Next, the control unit 120 generates a route search result screen (step S309).

  FIG. 10 shows an example of a search result screen. In the example of the figure, it is assumed that the departure point S and the destination G are on a general road, and a toll road HW passes through a position close to the general road. The recommended route based on the distance priority is one that reaches the destination G from the departure point S through the intersections K1, K2, and K3, and all passes through a general road. This recommended route is identified and displayed (not shown in the figure) on the road map data on the search result screen. In addition, the normal time and the discount applied when traveling on the distance-preferred recommended route are displayed. Here, since the vehicle does not travel on the toll road, both fees are zero.

  The time-preferred recommended route passes from the departure point S through the intersection K1, the interchanges IC1 and IC2 of the toll road HW, and reaches the destination G through the intersections K2 and K3 of the general road. The section of IC1 and IC2 on the toll road HW is displayed with identification indicating that the toll is free (displayed in black in the figure). The normal fee (IC1 to IC2) when traveling on the time-preferred recommended route is, for example, 2.000 yen, the fee when discount is applied is 0 yen, and the difference is displayed as -2,000 yen. The

  The recommended route for high-speed priority passes through the intersection K1 from the departure point S, passes through IC1, IC2, and IC3 of the toll road HW, and reaches the destination G through the intersection K3 of the general road again. The normal fee (IC1 to IC3 section) when traveling on the recommended route with priority to high speed is, for example, 3.000 yen, and the discount fee (IC2 to IC3 section) is, for example, 1,400 yen. The difference is displayed as -1.600 yen.

  The cost-preferred recommended route is a route with high cost performance by calculating the toll, travel distance and travel time based on mathematical formulas prepared in advance. Here, the cost-preferred recommended route is the same route as the time-preferred recommended route.

  According to the present embodiment, at the time of route search, the discount target link (section) is identified and displayed, and the normal fee when the discount is not applied and the discount fee when the discount is applied are respectively presented. The user can select a recommended route with good cost performance.

  When the guidance route to the destination is determined, guidance to the destination is performed according to the guidance route. At this time, if the road map screen is in the discount display mode, the discount target link (section) corresponding to the discount information of the toll road is identified and displayed. At this time, if the guidance route overlaps the discount target link, it is necessary to distinguish both displays. For example, the different colors of the guide route and discounted link are displayed alternately, the center of the link is displayed in one color, the link border is displayed in the other color, and the road width of the guide route is discounted Both links can be distinguished by narrowing the target link (or vice versa).

  Next, a fourth embodiment of the present invention will be described with reference to the flowchart of FIG. The discount conditions for toll roads are subject to change depending on national policies and the judgment of the operating company. In the fourth embodiment, the discount condition stored in the storage unit 70 is updated to the latest one. First, when a date input screen or a destination input screen is displayed (step S401), the control unit 120 accesses an external server or electronic device via the communication control unit 60 and establishes communication (step S402). . Next, the control unit 120 determines whether or not update information exists (step S403). If there is update information, the control unit 120 downloads the update information and updates the discount condition in the storage unit 70 (step S404). ). Then, the discount target link is identified and displayed based on the updated discount conditions. Thereby, road map data reflecting accurate discount conditions for toll roads can be displayed.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the present invention described in the claims. Deformation / change is possible.

  In the above embodiment, the navigation device that can be mounted on the vehicle is exemplified. However, the navigation device of the present invention is not limited to the removable portable navigation device, but includes a mobile phone and a portable information terminal device that partially include the navigation function. Including. Furthermore, an electronic device having a navigation function, an audio function, and a video function is also included.

10: Navigation device 20: Bus interface (I / F)
30: GPS receiver 40: VICS / FM multiplex receiver 50: input unit 60: communication control unit 70: storage unit 80: audio output unit 90: display control unit 100: program memory 110: data memory 120: control unit 200: road Map screen 210: Date and time information display HW, HW1, HW2, HW3: Toll road R1a: Free section identification display R2a, R2b: Discount section identification display R1b, R2b, R3b: Normal display F1, F2, F3: Balloon display

Claims (22)

A navigation device having a function of guiding a route to a destination,
An acquisition means for acquiring road map data;
Time information acquisition means for acquiring date and time information;
Discount condition acquisition means for acquiring discount conditions including discount information on toll roads;
A discriminating means for discriminating a discount target section to be discounted on a toll road based on the acquired date and time information and the acquired discount condition;
When displaying the acquired road map data, display means for displaying so that the determined discount target section is identified;
A navigation device. The navigation device according to claim 1, wherein the display unit changes a display mode of a discount target section according to discount information. The navigation device according to claim 1, wherein the discount information includes information related to a discount rate of toll road tolls, and the display unit changes a display color of a discount target section according to the discount rate. The navigation device according to any one of claims 1 to 3, wherein the display unit displays the section to be freed among the discount target sections so as to be identified. The navigation device according to any one of claims 1 to 4, wherein the display means further displays characters indicating a discount rate of the discount target section. The navigation device according to any one of claims 1 to 5, wherein the display unit further displays characters indicating a period or a time zone in which a discount is applied with respect to a discount target section. The navigation apparatus according to claim 1, wherein the discount condition acquisition unit includes an update unit that updates the discount condition. The determination means determines whether or not a discount condition of the discount target section has changed over time, and the display means updates the display of the discount target section according to the changed discount condition. The navigation device according to any one of 1 to 7. The navigation device according to claim 7, further comprising warning means for giving a warning to that effect when it is determined that the discount condition of the discount target section has changed. The navigation device further includes search means for searching for a route to the destination,
When a plurality of recommended routes are searched by the search means, the determination means determines whether a discount target section is included in the plurality of recommended routes,
The navigation device according to claim 1, wherein the display unit displays a search result screen such that discount information of a discount target section is identified on a recommended route to a destination. The navigation device according to claim 10, wherein the display means displays on the search result screen a toll when no discount is applied when traveling on each recommended route and a toll when a discount is applied. . The navigation device according to any one of claims 1 to 11, wherein the display unit identifies and displays a search route from a discount target section when the search route is combined and displayed on road map data. The navigation device according to claim 1, wherein the time information acquisition unit acquires time information based on a user input. The navigation device according to claim 1, wherein the time information acquisition unit acquires time information based on a date and time when the host vehicle is traveling. A method for displaying road map data in a navigation device,
Obtaining road map data;
Obtaining date and time information;
Obtaining discount conditions including discount information for toll roads;
Determining a discount target section to be discounted on a toll road based on the acquired date and time information and the acquired discount condition;
Displaying the determined road map data so that the determined discount target section is identified; and
Display method of road map data. The display method according to claim 15, wherein the displaying step changes a display mode of the discount target section according to the discount information. The display method according to claim 15 or 16, wherein the displaying step further displays characters indicating a discount rate of the discount target section. The display method according to any one of claims 15 to 17, wherein the displaying step further displays characters indicating a period or a time zone in which the discount is applied to the discount target section. A road map data display program implemented by a navigation device,
Obtaining road map data;
Obtaining date and time information;
Obtaining discount conditions including discount information for toll roads;
Determining a discount target section to be discounted on a toll road based on the acquired date and time information and the acquired discount condition;
A display program for displaying road map data, the method including a step of displaying the determined road map data so that the determined discount target section is identified. The display program according to claim 19, wherein the displaying step changes a display mode of the discount target section according to the discount information. The display program according to claim 19 or 20, wherein the displaying step further displays characters indicating a discount rate of a section to be discounted. The display program according to any one of claims 19 to 21, wherein the displaying step further displays characters indicating a period or a time zone in which the discount is applied to the discount target section.

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