WO2016084525A1

WO2016084525A1 - Guide information display system, guide information display method and guide information display program

Info

Publication number: WO2016084525A1
Application number: PCT/JP2015/079811
Authority: WO
Inventors: 伊東祐
Original assignee: アイシン・エィ・ダブリュ株式会社
Priority date: 2014-11-28
Filing date: 2015-10-22
Publication date: 2016-06-02
Also published as: CN107076566A; JP6459442B2; JP2016102736A

Abstract

The present invention realizes a technology with which it is possible to appropriately ensure the freshness of guide information to be displayed, even if there is a delay in the timing at which the guide information is displayed on a display device, due to the state of the display device. In the present invention, a guide information acquisition unit acquires guide information conditional upon the estimated position (EP) of a user entering an information acquisition sector (AS). A guide information display unit causes a display device to display the guide information last acquired by the guide information acquisition unit, conditional upon the estimated position (EP) of the user having entered a guide sector (GS) and the display device being in a state of being capable of displaying guide information. The guide information acquisition unit repeatedly acquires guide information every specific period of time, conditional upon the estimated position (EP) of the user having not passed through the guide sector (GS), during the period from when guide information was acquired conditional upon the estimated position (EP) of the user entering the information acquisition sector (AS) until the guide information is displayed on the display device.

Description

GUIDANCE INFORMATION DISPLAY SYSTEM, GUIDANCE INFORMATION DISPLAY METHOD, AND GUIDANCE INFORMATION DISPLAY PROGRAM

The present invention relates to a guidance information display system, a guidance information display method, and a guidance information display program for displaying guidance information associated with a guidance target point on a display device in response to a user approaching the guidance target point.

As a guide information display system as described above, one described in Japanese Patent Application Laid-Open No. 2011-209125 (Patent Document 1) is known. In Patent Literature 1, when a user approaches a guidance target point, guidance information (traffic information and simple map information of Patent Literature 1) associated with the guidance target point is displayed on a display device at an appropriate timing. Describes a technique for appropriately setting the timing for obtaining the guidance information. In the configuration of Patent Document 1, as described in paragraph 0030 of the document, guidance information is displayed on the display device on the condition that the user has reached a predetermined display point.

JP2011-209125A (paragraphs 0006, 0030)

By the way, depending on the state of the display device (for example, the setting state and the display state), the guide information may not be displayed on the display device when the user reaches a predetermined display point. In such a case, it may be possible to display the guidance information after the state of the display device has changed to a state in which the guidance information can be displayed. However, depending on the elapsed time from the timing at which the guidance information is acquired, it is not useful for the user. There is a possibility that guidance information with a reduced freshness (out of date) may be displayed. However, in Patent Document 1, no particular recognition has been made on this point.

Therefore, it is desired to realize a technique capable of appropriately ensuring the freshness of the displayed guide information even when the timing at which the guide information is displayed on the display device is delayed due to the state of the display device. .

In view of the above, the characteristic configuration of the guidance information display system for displaying guidance information associated with the guidance target point on a display device in response to the user's approach to the guidance target point is the user heading to the guidance target point. On the condition that the estimated position of the user has entered an information acquisition section that is a section in the travel route of the user, and a guide information acquisition unit that acquires the guide information, and the guidance target point side of the information acquisition section The guide information acquisition is performed on the condition that the estimated position of the user has entered a guide section that is a section including a section in the travel route and the display device is in a state where the guide information can be displayed. A guidance information display unit that displays the guidance information acquired last by the display unit on the display device, wherein the guidance information acquisition unit advances the estimated position of the user to the information acquisition section. On the condition that the estimated position of the user does not pass through the guidance section from the time when the guidance information is acquired on the condition until the guidance information is displayed on the display device. The guide information is repeatedly acquired.

In addition, the technical features of the guidance information display system in view of the above can also be applied to a guidance information display method and a guidance information display program. Such a method and program, and such a program are stored. Storage media (eg, optical discs, flash memories, etc.) are also disclosed herein.

In this case, the characteristic configuration of the guidance information display method for displaying the guidance information associated with the guidance target point on the display device in response to the user's approach to the guidance target point is that the user heads to the guidance target point. A guide information acquisition step for acquiring the guide information on the condition that the estimated position of the user has entered an information acquisition section that is a section in the travel route, and the movement closer to the guide target point than the information acquisition section The guide information acquisition step on the condition that the estimated position of the user has entered a guide section that is a section including a section in the route and that the display device is in a state where the guide information can be displayed. A guide information display step for causing the display device to display the guide information acquired last by the step, wherein in the guide information acquisition step, the user The estimated position of the user has passed through the guide section after the guide information is acquired on the condition that the estimated position has entered the information acquisition section until the guide information is displayed on the display device. The guide information is repeatedly acquired every specific time on the condition that there is not.

In this case, the characteristic configuration of the guidance information display program for displaying guidance information associated with the guidance target point on the display device in response to the user's approach to the guidance target point is directed to the guidance target point. On the condition that the estimated position of the user has entered an information acquisition section that is a section in the user's travel route, a guidance information acquisition function that acquires the guidance information, and the guidance target point side of the information acquisition section The guidance information is provided on the condition that the estimated position of the user has entered a guidance section that is a section including a section in the travel route, and that the state of the display device is a state capable of displaying the guidance information. A guide information display function for causing the display device to display the guide information acquired last by the acquisition function is realized in a computer, and the guide information acquisition function is From the time when the guidance information is acquired on the condition that the estimated position of the user has entered the information acquisition section until the guidance information is displayed on the display device, the estimated position of the user It is a function that repeatedly obtains the guidance information every specific time on the condition that it has not passed.

According to these feature configurations, after the guidance information is acquired on the condition that the estimated position of the user has entered the information acquisition section, the estimated position of the user remains until the guidance information is displayed on the display device. Guidance information is repeatedly acquired every specific time on the condition that it does not pass through the guidance section. That is, when the guidance information is acquired on the condition that the estimated position of the user has entered the information acquisition section, but the guidance information is not displayed on the display device due to the state of the display device or the state of movement of the user. On the condition that the estimated position of the user does not pass through the guidance section, that is, while there is a possibility that the guidance information is displayed due to the change of the state of the display device, the guidance information is Obtained repeatedly. And when the guidance information is displayed on the display device on the condition that the estimated position of the user has entered the guidance section and the state of the display device is a state where the guidance information can be displayed, it is acquired last. The displayed guidance information is displayed. Therefore, even when the timing at which the guidance information is displayed on the display device is delayed due to the state of the display device or the movement of the user, the freshness (newness) of the displayed guidance information is appropriately ensured. It becomes possible.

It is a block diagram which shows schematic structure of the guidance information display system and navigation system which concern on embodiment. It is a figure which shows the example of a setting of the information acquisition area and guide area which concern on embodiment. It is a figure which shows the example of a transition of the display image when a display apparatus displays guidance information. It is a flowchart which shows the procedure of the area setting process which concerns on embodiment. It is a flowchart which shows the procedure of the guidance information display process which concerns on embodiment. It is a figure which shows the example of a setting of the information acquisition area and guide area which concern on other embodiment.

An embodiment of a guidance information display system will be described with reference to the drawings. Here, as shown in FIG. 1, a case where the guidance information display system 1 is applied to a navigation system 2 will be described as an example. The navigation system 2 is a system that provides guidance information regarding points and routes to the user. Each component constituting the navigation system 2 may be provided in common hardware or may be divided into a plurality of hardware capable of communicating with each other. In this embodiment, the navigation system 2 is a vehicle navigation system that provides guidance information to a vehicle occupant (especially a driver) as a user, and each component of the navigation system 2 is a device in the vehicle. Or an external device (such as a server) that can communicate with a device in the vehicle via a communication network (such as the Internet). Here, the devices in the vehicle include not only devices that are fixedly mounted on the vehicle, but also devices that are brought into the vehicle only when in use (for example, portable navigation devices, portable information terminal devices, multi-function mobile phones, etc.). Including.

1. Overall Configuration of Navigation System As shown in FIG. 1, the navigation system 2 includes a guidance information display system 1. The navigation system 2 executes various navigation programs including a guide information display program executed by the guide information display system 1. Although not shown, the navigation system 2 includes an arithmetic processing device such as one or a plurality of CPUs (Central Processing Units) as a core member, and also includes a storage device that can be referred to by the arithmetic processing device. Then, the program stored in the storage device is executed. The storage device is, for example, a RAM (Random Access Memory) or a ROM (Read Only Memory). The navigation system 2 includes a storage device 4 that stores map information, and a part of a program executed by the navigation system 2 may be stored in the storage device 4. The storage device 4 includes, as a hardware configuration, a storage medium that can store and rewrite information, such as a hard disk and a flash memory.

As shown in FIG. 1, the navigation system 2 includes a plurality of functional units including a navigation calculation unit 10, a guidance information acquisition unit 11, a guidance information display unit 12, and a display control unit 13. Each functional unit included in the navigation system 2 is software (program) stored in a storage device (the storage device 4 or another storage device) of the navigation system 2, hardware such as a separately provided arithmetic circuit, or both of them. Consists of. That is, a program for causing the arithmetic processing device (computer) to realize the function of each functional unit is stored in a storage device that can be referred to by the arithmetic processing device. Each functional unit of the navigation system 2 is configured to be able to exchange information with each other via a communication network, and is configured to be able to extract data from the storage device of the navigation system 2.

The navigation calculation unit 10 includes a location process for identifying the user's estimated position EP (estimated current position), a display process for displaying map information, road traffic information, and the like on the display device 7, a point on the map (for example, a destination). Various navigation processes such as a point search process for searching for a route, a route search process for searching for a guide route from the departure place to the destination, and a route guide process for guiding the route to the destination according to the guide route are executed. In the present embodiment, the estimated position EP of the user is an estimated position of the host vehicle (the vehicle on which the user gets). In the present embodiment, the navigation calculation unit 10 performs a calculation for specifying the estimated position EP of the user based on the information acquired from the position information detection device 5. At this time, correction (map matching processing) for matching the user's estimated position EP on the road is performed based on the map information stored in the storage device 4 as necessary. The position information detection device 5 includes various devices for detecting position information, such as a GPS (Global Positioning System) receiver, a distance sensor, and an orientation sensor.

The user input operation to the navigation calculation unit 10 is performed via the input device 6. The input device 6 is configured using, for example, a touch panel integrated with the display device 7, or configured using a touch pad or the like separate from the display device 7. The user's operation (input operation) on the input device 6 includes, for example, an input operation of a point such as a destination, a scroll operation of a map image MI (an image representing map information, see FIG. 3), and a scale change operation of the map image MI. Etc. are included. The display image of the display device 7 is controlled to be drawn by the display control unit 13. The navigation calculation unit 10 controls the display image of the display device 7 via the display control unit 13 when executing the above display processing. As the display device 7, a device integrated with the input device 6 (for example, a display input device in which a liquid crystal display and a touch panel are integrated) or a device separate from the input device 6 (for example, a vehicle) is used. Or a display device that projects a display image on the windshield of the display.

The storage device 4 stores map information that is referred to when the navigation calculation unit 10 and the guidance information display system 1 execute various processes. The map information includes road information. The road information is road network information and includes information on nodes corresponding to the intersection 21 (see FIG. 2) and information on links corresponding to the road 20 (see FIG. 2) connecting the nodes. The road information includes, for example, information such as node position (coordinates), node attributes (intersection type, etc.) as node information. The road information includes, for example, information such as link start point and end point positions (coordinates), link length, number of lanes, road width, and road case as link information. Here, the road case is a classification based on the road type, such as an expressway, a toll road, a national road, a prefectural road, a narrow street, etc., in descending order of the road case.

The navigation system 2 is configured to be able to acquire distribution data distributed from the information distribution center 3. The distribution data is, for example, road traffic data including road traffic information, map update data including map update information for updating map information stored in the storage device 4, and the like. Data transmission / reception between the navigation system 2 and the information distribution center 3 is performed by wireless communication. This wireless communication is unidirectional wireless communication or bidirectional wireless communication from the information distribution center 3 side to the navigation system 2 side. In the present embodiment, the wireless communication between the navigation system 2 and the information distribution center 3 is bidirectional wireless communication (for example, wireless communication using a mobile phone network). In response to a request from the system 2 side, distribution data including the requested information is transmitted to the navigation system 2.

Information included in the distribution data acquired by the navigation system 2 is used when the navigation calculation unit 10 or the guidance information display system 1 executes various processes. The information included in the distribution data may be stored in the storage device 4, and the navigation calculation unit 10 and the guidance information display system 1 may refer to the storage device 4 to acquire the information included in the distribution data. . In FIG. 1, the navigation calculation unit 10 acquires distribution data distributed from the information distribution center 3, and the navigation calculation unit 10 stores or acquires information included in the acquired distribution data in the storage device 4. A configuration in which the distributed data or information included in the data is provided to the guidance information display system 1 is shown as an example. The guidance information display system 1 may be configured to acquire distribution data distributed from the information distribution center 3 without using the navigation calculation unit 10.

2. Configuration of Guidance Information Display System The guidance information display system 1 is a system that causes the display device 7 to display guidance information associated with the guidance target point GP in response to the user's approach to the guidance target point GP. The guide information display system 1 executes each step of the guide information display method for displaying the guide information associated with the guide target point GP on the display device 7. A plurality of guidance target points GP are set on the road. FIG. 2 shows the guidance target point GP set at the intersection 21 (node) as an example, but the guidance target point GP may be set as a point on the road 20 (a point on the link). The guidance target point GP is, for example, set on a road with a large amount of traffic, or set on a road with a high road rating or a wide road width.

The guidance information associated with the guidance target point GP includes road traffic information about the road associated with the guidance target point GP. Here, the road related to the guidance target point GP has a specific distance (for example, 1 [km], 5 [km], 10 [km], 30 [km] from the guidance target point GP, for example. Etc.) The following roads are assumed. At this time, the road on the rear side in the traveling direction of the user with respect to the guidance target point GP may be excluded from the roads related to the guidance target point GP. In addition, a user's advancing direction is a advancing direction of the user along the movement path | route RT mentioned later or an estimated traffic route. The guidance information associated with the guidance target point GP includes dynamic road traffic information. Here, “dynamic” means that the state can change constantly, in other words, the state can change from moment to moment. Here, the dynamic road traffic information is information including at least one of information on traffic congestion occurring on the road, information on a time required for passing through the road, and information on an accident occurring on the road. is there.

Guidance information display system 1 performs guidance information display processing based on two sections of information acquisition section AS and guide section GS. As shown in FIG. 2, the information acquisition section AS is a section in the user's travel route RT toward the guidance target point GP. The guidance section GS is a section including the target section with the section in the travel route RT closer to the guidance target point GP than the information acquisition section AS as a target section. Here, the travel route RT is a route on the rear side in the traveling direction of the user from the guidance target point GP in the estimated travel route of the user (the host vehicle in this example). In addition, the estimated travel route is a route that the user is predicted to travel in the future. For example, when a guidance route is set by the navigation calculation unit 10, the guidance route can be set as an estimated passage route. Further, when a guidance route is not set by the navigation calculation unit 10, for example, a route (for example, a road that is currently map-matched) with which the user's current estimated position EP is associated (for example, The route along the same road extending forward in the traveling direction) can be used as the estimated traffic route.

The starting point of the guidance section GS (the end on the rear side in the user's traveling direction, the same applies hereinafter) is the guidance target point GP than the end point (the end on the front side of the user's traveling direction, the same applies hereinafter) of the information acquisition section AS. Is set to the side (the front side in the direction of travel of the user). In the example shown in FIG. 2, the start point of the guidance section GS and the end point of the information acquisition section AS coincide. In the example shown in FIG. 2, the end point of the guidance section GS is set to the guidance target point GP. That is, in the example shown in FIG. 2, the guidance section GS is a section in the travel route RT, like the information acquisition section AS. Note that the end point of the guidance section GS can be set on the rear side in the traveling direction or the front side in the traveling direction with respect to the guidance target point GP. When the end point of the guidance section GS is set on the front side in the direction of travel of the user with respect to the guidance target point GP, the guidance section GS includes, in addition to the sections in the movement route RT, outside the movement route RT (the guidance target point). The section of the outside of the travel route RT to the GP) is included.

The guidance information display system 1 includes a guidance information acquisition unit 11 and a guidance information display unit 12 as shown in FIG. The guidance information acquisition unit 11 is a functional unit that acquires guidance information on the condition that the estimated position EP of the user has entered the information acquisition section AS. The guidance information acquired at this time is guidance information associated with the guidance target point GP that the user approaches. In FIG. 2, the estimated position EP of the user before entering the information acquisition section AS and the estimated position of the user entering the second section AS2 (to be described later) of the information acquisition section AS in order from the rear side in the traveling direction of the user. EP, the estimated position EP of the user entering the first section AS1 described later of the information acquisition section AS, the estimated position EP of the user entering the guidance section GS, and the guidance section GS The estimated position EP of the subsequent user is shown.

Then, the guidance information acquisition unit 11 estimates the user until the guidance information is displayed on the display device 7 after acquiring the guidance information on the condition that the estimated position EP of the user has entered the information acquisition section AS. On the condition that the position EP does not pass through the guidance section GS, the guidance information is repeatedly acquired every specific time. Here, “the estimated position EP of the user does not pass through the guidance section GS” means that the estimated position EP of the user is located at the end point of the guidance section GS or behind the end direction of the user in the traveling direction of the user. Means to be located. That is, after the guide information acquisition unit 11 acquires the guide information once, the guide information is still displayed on the display device 7 regardless of whether or not the estimated position EP of the user is located in the information acquisition section AS. Guidance information is repeatedly acquired every specific time on condition that the user's estimated position EP does not pass through the guidance section GS. Thus, the guidance information acquisition part 11 acquires guidance information at least once about one guidance object point GP. The estimated position EP of the user when the guide information is acquired by the guide information acquisition unit 11 is located in the information acquisition section AS at the first acquisition, and information at the second and subsequent acquisitions. It is located in the acquisition section AS or the guide section GS.

In this embodiment, the guide information acquisition unit 11 is configured to acquire (in other words, download) guide information distributed from the information distribution center 3. That is, the information distribution center 3 distributes distribution data including guidance information associated with the guidance target point GP that the user approaches to the guidance information display system 1 (navigation system 2). As described above, in the present embodiment, the wireless communication between the navigation system 2 and the information distribution center 3 is bidirectional wireless communication, and the information distribution center 3 distributes the guide information from the guide information acquisition unit 11. In response to the request, the guide information is distributed to the guide information display system 1 (navigation system 2). In the present embodiment, the specific time is set to a time that is not less than the update period of the guide information distributed from the information distribution center 3 and is not more than N times the update period (N is a natural number of 2 or more). Is done. The specific time is preferably set to M times the update period (M is a natural number equal to or less than N, for example, M = 1). The update period of the guidance information distributed from the information distribution center 3 is, for example, 1 minute, 2 minutes, 5 minutes, or the like. It is also possible to set the specific time regardless of the update period of the guidance information distributed from the information distribution center 3.

The guidance information display unit 12 is the last one that the guidance information acquisition unit 11 is provided on the condition that the estimated position EP of the user has entered the guidance section GS and the state of the display device 7 is a state where the guidance information can be displayed. It is a functional unit that causes the display device 7 to display the acquired guidance information. As described above, the condition for the guide information display unit 12 to display the guide information on the display device 7 includes a condition that the state of the display device 7 is a state in which the guide information can be displayed. In the present embodiment, as shown on the upper side of FIG. 3, the state in which the display device 7 displays the map image MI is the state of the display device 7 that can display guidance information. In addition, in FIG. 3, the transition example of the display image at the time of the display apparatus 7 displaying guidance information is shown. In this example, a guide image GI representing guide information is displayed superimposed on the map image MI. When the guide information acquisition unit 11 acquires not the information (image data) of the guide image GI but the information for generating the guide image GI as the guide information, the guide information display unit 12 displays the guide information acquisition unit 11. A guide image GI representing the guide information is generated based on the guide information acquired by the above. When the guide image GI is generated, other information (for example, map information stored in the storage device 4) is referred to as necessary. The guide image GI may be displayed in the entire display area of the display device 7 or may be displayed side by side in the display area of the display device 7 so as not to overlap with other images (for example, the map image MI). . In the example illustrated in FIG. 3, the guide image GI is an image in which a road is represented by a simple figure and a section where a traffic jam occurs is represented by hatching of different patterns depending on the degree of the traffic jam. . The guide image GI can be an image representing guide information using at least one of graphics and characters.

Incidentally, the image (non-map image) other than the map image MI displayed by the display device 7 includes an operation setting image in which a mark for the user to perform various operations and settings is displayed. The operation setting image is, for example, an image for performing a point search or an image for performing an operation or setting of a device (for example, an audio device or an air conditioner) provided in the host vehicle. In this embodiment, the operation setting image is an image having a higher priority than the guidance image GI. Further, in the present embodiment, an image of an enlarged intersection view showing an enlarged road shape around the intersection displayed in response to the user's estimated position EP approaching the intersection that changes the course such as a right turn or a left turn. Also, the image has a higher priority than the guide image GI. In the following, an image having a higher priority than the guide image GI, such as the operation setting image and the enlarged image of the intersection, will be referred to as a “priority image” and the map image MI does not include the enlarged image of the intersection. And In the present embodiment, the state in which the display device 7 displays the priority image is the state of the display device 7 that cannot display the guidance information (that is, cannot be displayed). That is, when the display device 7 displays information or an image having higher priority than the guidance information (guidance image GI), the guidance information is not displayed on the display device 7.

Incidentally, there are cases where the display device 7 displays both the map image MI and the priority image by dividing the display area into a plurality of areas or by superimposing a plurality of images. In such a case, for example, the map image MI and the priority image are displayed side by side in the display area so as not to overlap, and the map image MI is displayed on the front side (upper side) with respect to the priority image. This state can be the state of the display device 7 capable of displaying the guidance information. Further, for example, a state in which the priority image is displayed superimposed on the front side (upper side) with respect to the map image MI can be a state of the display device 7 that cannot display the guidance information.

In the present embodiment, as shown in FIG. 2, the information acquisition section AS includes a first section AS1 on the guidance target point GP side (that is, the front side in the direction of travel of the user), and a guidance target point more than the first section AS1. And a second section AS2 on the side far from the GP (that is, the rear side in the traveling direction of the user). In this example, the information acquisition section AS is configured by adding the first section AS1 and the second section AS2. That is, in this example, the start point of the second section AS2 matches the start point of the information acquisition section AS, the end point of the second section AS2 matches the start point of the first section AS1, and the end point of the first section AS1 is the information acquisition section. It matches the end point of AS. Then, the guidance information acquisition unit 11 has a user's moving speed (the vehicle speed that is the moving speed of the host vehicle in this example) higher than zero while the estimated position EP of the user is in the second section AS2. Guidance information is acquired as a further condition, and while the estimated position EP of the user is in the first section AS1, the guidance information is acquired without being a condition that the user's moving speed is equal to or higher than the speed threshold. Is configured to do. That is, the guidance information acquisition unit 11 basically acquires the guidance information on the condition that the user's estimated position EP has entered the information acquisition section AS, but at a part of the start end side of the information acquisition section AS. For a certain second section AS2, in addition to the fact that the estimated position EP of the user has entered the second section AS2 (information acquisition section AS), the user's moving speed is equal to or greater than the speed threshold value. It is configured to obtain information. An example of setting the speed threshold will be described later.

Hereinafter, the procedure of the section setting process and the guidance information display process executed by the guidance information display system 1 according to the present embodiment will be described with reference to the flowcharts shown in FIGS. Each step of the section setting process and the guidance information display process described below is executed by an arithmetic processing device provided in the guidance information display system 1 or the navigation system 2.

First, the section setting process will be described with reference to FIG. The guidance information display system 1 determines whether or not there is a guidance target point GP on the estimated travel route of the user (step # 01). In addition, this determination is performed at a timing at which the guidance section GS and the information acquisition section AS can be appropriately set between the estimated position EP of the user and the guidance target point GP when there is the guidance target spot GP. Is done.

In the present embodiment, the information distribution center 3 is configured to distribute distribution data including position information of the guidance target point GP, and the guidance information display system 1 includes the position information of the guidance target point GP included in the distribution data. Based on the above, it is determined whether or not there is a guidance target point GP on the estimated travel route of the user. For example, when the guidance target point GP is set as an intersection, the position information of the guidance target point GP is information specifying a node corresponding to the intersection. For example, when the guidance target point GP is set on a road, the position information of the guidance target point GP includes information for specifying a link corresponding to the road and the guidance target point GP on the link. Information for specifying the position (information indicating the distance from the link end of the guidance target point GP). The estimated travel route can be represented by a set (link sequence) of a plurality of links constituting the estimated travel route, and the guidance information display system 1 is behind the user's traveling direction with respect to the plurality of links constituting the link sequence. In order from the link on the side, it is determined whether or not the guidance target point GP exists on the link.

When there is a guidance target point GP on the estimated travel route of the user (step # 01: Yes), the guidance information display system 1 displays each section of the guidance section GS, the first section AS1, and the second section AS2. These are set in order (steps # 02 to # 04). The setting order of each section can be changed as appropriate. And the guidance information display system 1 stores the information of each set section in a memory | storage device (for example, memory | storage device 4 etc.) (step # 05). For example, information on the start point and end point of each section, or information on the start point and section length of each section is stored in the storage device. When a plurality of guidance target points GP exist on the estimated travel route of the user, the series of processes in steps # 02 to # 05 guides the user on the rear side in the traveling direction (side closer to the estimated position EP of the user). It is executed in order from the target point GP. In the present embodiment, as shown in FIG. 2, the entire area between the guide section GS and the second section AS2 is the first section AS1, that is, the guide section GS, the first section AS1, and the second section. Each section is set so that AS2 is continuously arranged from the front side in the traveling direction of the user. In the present embodiment, the end point of the guidance section GS is set on the guidance target point GP.

The length of the guidance section GS is variable according to the moving speed of the user approaching the guidance target point GP (the moving speed of the user when the guidance section GS is set) even if it is a fixed value (for example, 1 [km]). It is good as a value. For example, the length of the guidance section GS can be set to increase as the movement speed increases according to the movement speed of the user approaching the guidance target point GP. In addition, a user's moving speed can be acquired based on the detection information of a distance sensor, for example.

Further, the length of the first section AS1 is set based on the first speed, and the length of the section (in this example, the entire information acquisition section AS) obtained by adding the first section AS1 and the second section AS2 is set. The second speed higher than the first speed can be set. For example, the first speed is assumed to be an average movement speed of the user (for example, a speed according to the speed limit) assumed on the roads constituting the movement route RT, and the second speed constitutes the movement route RT. The maximum moving speed of the user assumed on the road (for example, a speed corresponding to 1.5 times or twice the speed limit) is set. In this case, the above-described speed threshold value that determines the guide information acquisition condition while the user's estimated position EP is within the second section AS2 is set to a value equal to or higher than the first speed (for example, the same value as the first speed). can do.

Furthermore, the length of the first section AS1 and the length of the second section AS2 may be set based on the download time for downloading the guide information from the information distribution center 3. If the download time varies greatly depending on the communication environment or the like, the length of the first section AS1 and the length of the second section AS2 can be set based on the assumed maximum download time. As a specific example, when the first speed is “V1”, the second speed is “V2”, and the download time (or maximum download time) is “T”, the length of the first section AS1 is “ The value of V1 × T ”or more can be set, and the length of the second section AS2 can be set to“ (V2−V1) × T ”or more. Thus, by setting the length of the first section AS1 and the length of the second section AS2, and setting the speed threshold value equal to the first speed, the guidance information is acquired more times than necessary. In many cases, the acquisition of guidance information can be performed at least once before the estimated position EP of the user enters the guidance section GS.

That is, when the moving speed of the user approaching the guidance target point GP is equal to or higher than the first speed, the download of the guidance information is started on the condition that the estimated position EP of the user has entered the second section AS2. . Here, the entire length of the information acquisition section AS including both the first section AS1 and the second section AS2 is set to a value of “V2 × T” or more, and the second speed (V2) is assumed by the user. In many cases, the download of the guidance information can be completed before the estimated position EP of the user enters the guidance section GS. When the moving speed of the user approaching the guidance target point GP is less than the first speed, the download of the guidance information is started on the condition that the estimated position EP of the user has entered the first section AS1. . Here, since the length of the first section AS1 is set to a value of “V1 × T” or more and the first speed (V1) is an average moving speed assumed by the user, in many cases, the user The download of the guide information can be completed before the estimated position EP enters the guide section GS.

Note that the speed threshold is not a constant value unrelated to the estimated position EP of the user in the second section AS2, but may be a variable value corresponding to the estimated position EP of the user in the second section AS2. For example, according to the distance from the user's estimated position EP to the start point of the first section AS1, the speed threshold can be set so as to decrease as the distance decreases. The change of the speed threshold with respect to the distance may be linear or non-linear, and may be continuous or stepwise. For example, when the estimated position EP of the user is at the start point of the second section AS2, the speed threshold is higher than the first speed (for example, the second speed), and the estimated position EP of the user is the second section. The speed threshold is a value of the distance from the estimated position EP of the user to the start point of the first section AS1 so that the speed threshold at the end point of AS2 (the start point of the first section AS1) becomes the first speed or zero. It can be configured to decrease linearly and continuously in accordance with the decrease.

Next, the guidance information display process will be described with reference to FIG. When it is determined that the user is approaching the guidance target point GP (step # 11: Yes), the guidance information acquisition unit 11 determines whether or not the user's estimated position EP has entered the second section AS2. Perform (Step # 12). In the present embodiment, the determination in step # 11 is executed by the guidance information display system 1, and when the distance from the user's estimated position EP to the guidance target point GP is equal to or smaller than a predetermined approach distance, the user Is determined to be approaching the guidance target point GP. As described above, in the present embodiment, the distribution data including the position information of the guidance target point GP is configured to be distributed from the information distribution center 3 to the guidance information display system 1. When the estimated position EP of the user has entered the second section AS2 (step # 12: Yes), the guidance information acquisition unit 11 determines whether or not the moving speed of the user is equal to or higher than the speed threshold value. (Step # 13) When the moving speed of the user is equal to or higher than the speed threshold (Step # 13: Yes), guidance information is acquired (Step # 15). In this embodiment, the guidance information acquisition unit 11 requests the information distribution center 3 to distribute the guidance information associated with the guidance target point GP that the user approaches, and the information distribution center 3 distributes the information in response to the request. By downloading the distribution data to be obtained, the guide information included in the distribution data is acquired. That is, the guide information acquisition process is a process from a guide information distribution request to a guide information download completion.

When the moving speed of the user is not equal to or higher than the speed threshold, that is, when the moving speed of the user is less than the speed threshold (step # 13: No), the guidance information acquisition unit 11 determines that the estimated position EP of the user is the first section. It is determined whether or not the vehicle has entered AS1 (step # 14). Then, when the estimated position EP of the user has entered the first section AS1 (step # 14: Yes), the guidance information acquisition unit 11 acquires guidance information (step # 15), and the estimated position of the user When the EP has not entered the first section AS1, that is, when the user's estimated position EP is a position within the second section AS2 (step # 14: No), the user's moving speed is greater than or equal to the speed threshold. It is determined again whether or not there is (step # 13). That is, when the user's estimated position EP enters the second section AS2 in a state where the user's moving speed is less than the speed threshold (Step # 12: Yes, Step # 13: No), Guidance information is acquired at the earlier timing of the timing at which the user's moving speed becomes equal to or higher than the speed threshold and the timing at which the user's estimated position EP enters the first section AS1 (step # 15). Note that “acquiring guide information” here is strictly “starting information acquisition processing” or “requesting information from the information distribution center 3”.

When the guidance information is acquired by the process of step # 15, the guidance information display unit 12 determines whether or not the estimated position EP of the user has entered the guidance section GS, and the state of the display device 7 indicates the guidance information. It is determined whether or not display is possible (step # 16). When the estimated position EP of the user has entered the guidance section GS and the state of the display device 7 is a state in which guidance information can be displayed (step # 16: Yes), the guidance information display unit 12 The guide information acquired last by the guide information acquisition unit 11 is displayed on the display device 7 (step # 20). Thereafter, when the estimated position EP of the user passes through the guidance section GS (Step # 21: Yes), the process ends. The guidance information is displayed on the display device 7 for a set time (for example, 30 seconds).

On the other hand, even when the estimated position EP of the user has not entered the guidance section GS or when the estimated position EP of the user has entered the guidance section GS, the state of the display device 7 can display the guidance information. When it is not in the state (step # 16: No), the guidance information display unit 12 determines whether or not the estimated position EP of the user has passed through the guidance section GS (step # 17). If the estimated position EP of the user passes through the guidance section GS (step # 17: Yes), the process is terminated without displaying the guidance information on the display device 7. On the other hand, when the estimated position EP of the user does not pass through the guidance section GS (step # 17: No), the guidance information acquisition unit 11 determines whether a specific time has elapsed since the previous acquisition of the guidance information. Is determined (step # 18). Note that “a specific time has elapsed since the acquisition of the previous guidance information” here is strictly “a specific time has elapsed since the start of the previous guidance information acquisition process”. And when specific time has passed since acquisition of the last guidance information (step # 18: Yes), after guidance information is acquired again by the guidance information acquisition part 11 (step # 19), a process is step. Return to # 16. Note that “after the guide information is acquired again” here is strictly “after the guide information re-acquisition process is started”. On the other hand, if the specific time has not elapsed since the previous acquisition of the guide information (step # 18: No), the guide information acquisition unit 11 does not perform the guide information re-acquisition process, and the process proceeds to step # 16. Returned. After the guide information is acquired on the condition that the estimated position EP of the user has entered the information acquisition section AS by performing the processing as described above, until the guide information is displayed on the display device 7, Guidance information is repeatedly acquired every specific time on the condition that the estimated position EP of the user does not pass through the guidance section GS (in other words, distribution of guidance information is repeatedly requested every specific time).

3. Other Embodiments Finally, other embodiments will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises.

(1) In the above embodiment, while the information acquisition section AS includes the first section AS1 and the second section AS2, and the guidance information acquisition unit 11 is in the second section AS2, the estimated position EP of the user is within the second section AS2. The configuration in which the guide information is acquired on the condition that the user's moving speed is equal to or higher than the speed threshold has been described as an example. However, the present invention is not limited to such a configuration, and a configuration for acquiring guidance information in common for the entire area within the information acquisition section AS without the condition that the user's moving speed is equal to or greater than a speed threshold, for example, a user It is also possible to adopt a configuration in which guide information is acquired only on the condition that the estimated position EP has entered the information acquisition section AS. In such a case, as in the example illustrated in FIG. 6, the user before the distance from the guidance target point GP at the start point of the information acquisition section AS or the length of the information acquisition section AS enters the information acquisition section AS. It may be configured to be variably set according to the moving speed. For example, the above-described separation distance or length may be set to increase as the moving speed of the user before entering the information acquisition section AS increases.

(2) In the above embodiment, the information distribution center 3 distributes distribution data including information on the position of the guidance target point GP, and the guidance information display system 1 detects the position of the guidance target point GP included in the distribution data. The configuration for determining whether there is a guidance target point GP on the estimated travel route of the user based on the information has been described as an example. However, without being limited to such a configuration, a database in which position information of the guidance target point GP is stored is provided in a device on the navigation system 2 side (guidance information display system 1 side) such as the storage device 4. Also good. Moreover, in said embodiment, the guidance information display system 1 demonstrates as an example the structure which sets the guidance area GS and information acquisition area AS (In the example of the said embodiment, 1st area AS1 and 2nd area AS2). However, the distribution data distributed from the information distribution center 3 includes the setting information of the guidance section GS and the information acquisition section AS set on the information distribution center 3 side in addition to the position information of the guidance target point GP. That is, it is also possible to adopt a configuration in which the guidance section GS and the information acquisition section AS are not set on the guidance information display system 1 side.

(3) The assignment of each functional unit of the navigation system 2 (guidance information display system 1) shown in the above embodiment is merely an example, and a plurality of functional units are combined or one functional unit is further divided. It is also possible.

(4) In the above embodiment, the case where the navigation system 2 is a vehicle navigation system that provides guidance information to a vehicle occupant has been described as an example. However, the present invention is not limited to such a configuration. For example, the guidance information display system can be applied to a navigation system that guides a user to a destination by walking or public transportation.

(5) In the above embodiment, the case where the guidance information display system is applied to a navigation system having a function of route guidance to a destination has been described as an example. However, without being limited to such a configuration, for example, the guidance information display system can be applied to a system that does not have a function of route guidance to the destination.

(6) Regarding other configurations, it should be understood that the embodiments disclosed herein are merely examples in all respects. Accordingly, those skilled in the art can make various modifications as appropriate without departing from the spirit of the present disclosure.

4). Outline of the above-described embodiment The above-described embodiment described above includes at least the following configuration.
A guidance information display system (1) for displaying guidance information associated with a guidance target point (GP) on a display device (7) in response to a user approaching the guidance target point (GP), wherein the guidance information Guidance for acquiring the guidance information on the condition that the estimated position (EP) of the user has entered the information acquisition section (AS) that is a section of the user's travel route (RT) toward the target point (GP) The information acquisition unit (11) and the user's estimation in the guidance section (GS) that is a section including the section in the travel route (RT) on the guidance target point (GP) side than the information acquisition section (AS). On the condition that the position (EP) has entered and the state of the display device (7) is a state in which the guidance information can be displayed, the guidance information acquisition unit (11) last acquired the guidance. Information on the display device 7), and the guidance information acquisition unit (11) is provided on the condition that the estimated position (EP) of the user has entered the information acquisition section (AS). On the condition that the estimated position (EP) of the user does not pass through the guidance section (GS) from when the guidance information is acquired until the guidance information is displayed on the display device (7). The guidance information is repeatedly acquired at specific time intervals.

According to such a configuration, the guide information is displayed on the display device (7) even after the guide information is acquired on the condition that the estimated position (EP) of the user has entered the information acquisition section (AS). Until the user's estimated position (EP) does not pass through the guidance section (GS), the guidance information is repeatedly acquired every specific time. That is, although the guidance information is acquired on the condition that the estimated position (EP) of the user has entered the information acquisition section (AS), the guidance information is not updated due to the state of the display device (7) and the state of movement of the user. When not displayed on the display device (7), the state of the display device (7) changes on condition that the estimated position (EP) of the user does not pass through the guidance section (GS). While there is a possibility that the guidance information is displayed, the guidance information is repeatedly acquired at specific time intervals. The guidance information is displayed on the display device (7) on the condition that the estimated position (EP) of the user has entered the guidance section (GS) and the state of the display device (7) is in a state where the guidance information can be displayed. ), The last acquired guide information is displayed. Therefore, even when the timing at which the guidance information is displayed on the display device (7) is delayed due to the state of the display device (7) or the movement of the user, the freshness (newness) of the displayed guidance information. ) Can be secured appropriately.

The guidance information acquisition unit (11) acquires the guidance information distributed from the information distribution center (3), and the specific time is an update of the guidance information distributed from the information distribution center (3). It is preferable that the time is not less than the cycle and not more than N times the update cycle (N is a natural number of 2 or more).

According to this configuration, since the specific time is set to be equal to or longer than the update period of the guide information, it is possible to suppress the same guide information from being acquired a plurality of times. That is, it is possible to suppress the guide information acquisition process from being performed more than necessary, and it is possible to suppress an increase in processing load and communication cost due to repeated acquisition of the guide information every specific time. .

The information acquisition section (AS) includes a first section (AS1) on the guidance target point (GP) side and a second section on the side farther from the guidance target spot (GP) than the first section (AS1). The guidance information acquisition unit (11) includes a section (AS2), and the moving speed of the user is higher than zero while the estimated position (EP) of the user is in the second section (AS2). The guide information is acquired on the condition that the speed is equal to or higher than a speed threshold, and the moving speed of the user is equal to or higher than the speed threshold while the estimated position (EP) of the user is in the first section (AS1). It is preferable to acquire the guidance information without being a condition.

According to this configuration, when the user's moving speed is equal to or higher than the speed threshold in consideration of the fact that the user's moving distance within the time required for obtaining the guidance information increases as the user's moving speed increases. As compared with the case where it is not so, the estimated position (EP) of the user when the guidance information acquisition process is started can be set to a position further away from the guidance section (GS). Therefore, regardless of the magnitude of the user's moving speed, it is possible to increase the rate at which guidance information is acquired at least once before the estimated position (EP) of the user enters the guidance section (GS). It is possible to suppress a delay in the timing at which the guidance information is displayed on the display device (7) due to the delay in obtaining the guidance information. When the user's moving speed is less than the speed threshold, the guide information acquisition process is not started while the user's estimated position (EP) is within the second section (AS2). It is possible to suppress the excessive increase of the amount.

Further, it is preferable that the speed threshold value is set so as to decrease as the distance becomes shorter according to the distance from the estimated position (EP) of the user to the start point of the first section (AS1). .

According to this configuration, the position where the guidance information acquisition process is started can be changed according to the moving speed of the user. Accordingly, the estimated position (EP) of the user when the guidance information acquisition process is started is a position far away from the guidance section (GS) more than necessary, appropriately considering the magnitude of the user's moving speed. This can be suppressed, and as a result, it is possible to suppress the number of times of obtaining guide information from being increased more than necessary.

In addition, the separation distance from the guidance target point (GP) of the start point of the information acquisition section (AS) depends on the movement speed of the user before entering the information acquisition section (AS). It is preferable that the length increases as the height increases.

According to this configuration, the number of times that the guide information is acquired becomes excessively large in consideration of the fact that the user's moving distance within the time required for acquiring the guide information increases as the user's moving speed increases. It is possible to increase the rate at which guidance information is acquired at least once before the estimated position (EP) of the user enters the guidance section (GS).

Further, it is preferable that the display device (7) displaying the map image (MI) is the display device (7) capable of displaying the guidance information.

According to this configuration, in a state where the display device (7) is displaying the map image (MI), the user generally needs information regarding his / her movement and causes the display device (7) to display guidance information. Therefore, it is possible to appropriately set a condition for displaying the guidance information.

The various technical features of the guide information display system described above can also be applied to a guide information display method and a guide information display program.

The technology according to the present disclosure includes a guidance information display system, a guidance information display method, and a guidance information display program for displaying guidance information associated with a guidance target point on a display device according to the approach of the user to the guidance target point. Can be used.

1: Guidance information display system 3: Information distribution center 7: Display device 11: Guidance information acquisition unit 12: Guidance information display unit AS: Information acquisition section AS1: First section AS2: Second section EP: Estimated position GS: Guidance section GP: guidance target point MI: map image RT: travel route

Claims

A guidance information display system for displaying guidance information associated with the guidance target point on a display device in response to a user approaching the guidance target point,
A guidance information acquisition unit that acquires the guidance information on the condition that the estimated position of the user has entered an information acquisition section that is a section in the user's travel route toward the guidance target point;
The estimated position of the user has entered a guidance section that is a section including a section in the travel route closer to the guidance target point than the information acquisition section, and the state of the display device can display the guidance information A guide information display unit that causes the display device to display the guide information acquired last by the guide information acquisition unit on the condition that
The guide information acquisition unit acquires the guide information on the condition that the estimated position of the user has entered the information acquisition section until the guide information is displayed on the display device. A guidance information display system that repeatedly obtains the guidance information every specific time on the condition that the estimated position does not pass through the guidance section.
The guidance information acquisition unit acquires the guidance information distributed from an information distribution center,
2. The guidance according to claim 1, wherein the specific time is equal to or longer than an update cycle of the guidance information distributed from the information distribution center and is equal to or less than N times the update cycle (N is a natural number of 2 or more). Information display system.
The information acquisition section includes a first section on the guidance target point side, and a second section on the side farther from the guidance target point than the first section,
The guidance information acquisition unit acquires the guidance information as a further condition that the moving speed of the user is equal to or higher than a speed threshold higher than zero while the estimated position of the user is in the second section. The guide information according to claim 1 or 2, wherein the guide information is acquired without a condition that the moving speed of the user is equal to or greater than the speed threshold while the estimated position of the user is within the first section. Display system.
The guidance information display system according to claim 3, wherein the speed threshold is set so as to decrease as the distance becomes shorter in accordance with a distance from the estimated position of the user to a start point of the first section.
The separation distance of the starting point of the information acquisition section from the guidance target point is set so as to increase as the movement speed increases according to the movement speed of the user before entering the information acquisition section. Item 3. The guide information display system according to item 1 or 2.
The guidance information display system according to any one of claims 1 to 5, wherein the display device displaying a map image is a state of the display device capable of displaying the guidance information.
A guidance information display method for causing a display device to display guidance information associated with the guidance target point in response to a user approaching the guidance target point,
Guidance information acquisition step for acquiring the guide information on the condition that the estimated position of the user has entered an information acquisition section that is a section in the user's travel route toward the guidance target point;
The estimated position of the user has entered a guidance section that is a section including a section in the travel route closer to the guidance target point than the information acquisition section, and the state of the display device can display the guidance information A guide information display step for causing the display device to display the guide information last acquired by the guide information acquisition step on the condition that
In the guidance information acquisition step, the user's estimated position is acquired on the condition that the user has entered the information acquisition section until the guidance information is displayed on the display device. A guide information display method for repeatedly acquiring the guide information every specific time on the condition that the estimated position does not pass through the guide section.
A guidance information display program for causing a display device to display guidance information associated with the guidance target point in response to a user approaching the guidance target point,
Guidance information acquisition function for acquiring the guidance information on the condition that the estimated position of the user has entered an information acquisition section that is a section in the user's travel route toward the guidance target point;
The estimated position of the user has entered a guidance section that is a section including a section in the travel route closer to the guidance target point than the information acquisition section, and the state of the display device can display the guidance information On the condition that it is a state, the computer realizes a guide information display function for displaying the guide information last acquired by the guide information acquisition function on the display device,
The guidance information acquisition function is a period from the acquisition of the guidance information on the condition that the estimated position of the user has entered the information acquisition section until the guidance information is displayed on the display device. A guide information display program which is a function for repeatedly acquiring the guide information at specific times on the condition that the estimated position does not pass through the guide section.