JP2015141169A - Vehicle position display system, vehicle position display program, and vehicle position display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle position display system with which a user can be more easily impressed with the driving state of a vehicle with a vehicle position mark.SOLUTION: There is provided a vehicle position display system including a vehicle position mark control unit that periodically changes a vehicle position mark and changes the period to change the vehicle position mark according to the driving state.

Description

  The present invention relates to a vehicle position display system that displays a vehicle position display image in which a vehicle position mark for representing a vehicle position is displayed on a map image on a display screen.

  As such a vehicle position display system as described above, for example, a system described in Patent Document 1 below is already known. The technique of Patent Literature 1 is configured to change the color, shape, and size of the vehicle position mark in accordance with the driving state of the vehicle such as fuel efficiency.

WO2010 / 070814

  However, in the technique of the cited document 1, since the color of the vehicle position mark is uniformly changed according to the driving state, the expression is monotonous for the user. For this reason, it is not easy to impress the driving state strongly on the user.

  Therefore, it is desired to realize a host vehicle position display system that makes it easier to impress the user on the driving state of the vehicle with a vehicle position mark.

The characteristic configuration of the vehicle position display system according to the present invention is as follows:
A vehicle position acquisition unit for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition unit for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination unit for determining a driving state of the vehicle;
A vehicle position mark control unit that periodically changes the vehicle position mark and changes a cycle in which the vehicle position mark is changed according to the driving state;
It is in the point with.

  According to this characteristic configuration, the vehicle position mark is periodically changed, and the cycle is changed according to the driving state. Therefore, the driving state of the vehicle is expressed by a rich and easy-to-understand expression for the user. Can be expressed. Thereby, for example, the pulsation of the human heart can be reminiscent, and the vehicle position mark can be expressed with a sense of vigor and vitality. As a specific example, the vehicle is anthropomorphic so that the cycle of the heart beats according to the driving state, just as a human changes the cycle of the heart beat according to the motion state. Users can feel it. Therefore, it becomes easy for the user to impress and understand the driving state of the vehicle more strongly.

  The technical features of the vehicle position display system according to the present invention can also be applied to a vehicle position display program and a vehicle position display method. Therefore, the present invention also includes such a method and program. Can be targeted. Note that a storage medium such as a DVD-ROM or a flash memory in which the vehicle position display program is stored can also be the subject of the right.

In that case, the characteristic configuration of the vehicle position display program is
A vehicle position acquisition function for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition function for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination function for determining a driving state of the vehicle;
A vehicle position mark control function for periodically changing the vehicle position mark and changing a cycle for changing the vehicle position mark according to the driving state;
Is to make the computer realize.

In that case, the characteristic configuration of the vehicle position display method is as follows:
A vehicle position acquisition step for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition step for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination step for determining a driving state of the vehicle;
A vehicle position mark control step for periodically changing the vehicle position mark and changing a cycle for changing the vehicle position mark according to the driving state;
Is to cause the arithmetic processing unit to execute.

  Naturally, these vehicle position display programs and vehicle position display methods can also obtain the effects of the vehicle position display system described above, and some additional examples given as examples of suitable configurations thereof. It is possible to incorporate technology.

It is a block diagram which shows the schematic structure of the own vehicle position display system which concerns on embodiment of this invention. It is a figure for demonstrating the vehicle position display image which concerns on embodiment of this invention. It is a figure for demonstrating the vehicle position mark changed periodically based on embodiment of this invention. It is a figure for demonstrating the period changed according to the driving | running state which concerns on embodiment of this invention. It is a flowchart for demonstrating the process of the own vehicle position display system which concerns on embodiment of this invention.

An embodiment of a vehicle position display system 1 according to the present invention will be described.
FIG. 1 is a block diagram showing a schematic configuration of the vehicle position display system 1.
As shown in FIG. 1, the own vehicle position display system 1 includes functional units such as a vehicle position acquisition unit 10, a map data acquisition unit 15, a display image generation unit 20, a driving state determination unit 30, and a vehicle position mark control unit 40. It has.

The vehicle position acquisition unit 10 acquires vehicle position information representing the position of the vehicle. The map data acquisition unit 15 acquires map data. The display image generation unit 20 generates a vehicle position display image 21 in which a vehicle position mark 23 for representing the vehicle position is displayed on the map image 22 based on the map data and the vehicle position information. The driving state determination unit 30 determines the driving state of the vehicle. The vehicle position mark control unit 40 periodically changes the vehicle position mark 23 and changes the cycle ΔTm for changing the vehicle position mark 23 according to the driving state.
Hereinafter, the vehicle position display system 1 according to the present embodiment will be described in detail.

1. Own vehicle position display system 1
As shown in FIG. 2, the vehicle position display system 1 displays a vehicle position display image 21 in which a vehicle position mark 23 for representing a vehicle position is superimposed on a map image 22 on a display screen 53 of a display device 54. Display system.
The own vehicle position display system 1 includes an arithmetic processing unit such as a CPU as a core member, and a RAM (random access memory) configured to be able to read and write data from the arithmetic processing unit, and an arithmetic processing unit ROM (read-only memory) configured to be able to read data from, and storage devices such as a flash memory and a hard disk configured to be able to store and read a large amount of data. And each function part 10 and 15 of the own vehicle position display system 1 by software (program) memorize | stored in ROM etc. of the own vehicle position display system 1, hardwares, such as a separately provided arithmetic circuit, or both of them. , 20, 30, 35, 40, and the like. A vehicle position display program for causing the arithmetic processing unit to realize the functions of the respective function units 10, 15, 20, 30, 35, and 40 is stored in a storage device such as a RAM or a ROM that can be referred to by the arithmetic processing unit. .

  The display device 54 includes a display screen 53 and a control device (not shown) for the display screen 53. The display screen 53 is a display panel that can display an image, such as a liquid crystal panel. Note that the display screen 53 may have a touch panel function, and may be configured to accept a setting by the user by a touch operation of the display panel by the user. The display screen 53 may be a head-up display.

  In the present embodiment, the vehicle position display system 1 is mounted on a vehicle. For example, the vehicle position display system 1 includes a navigation device mounted on a vehicle, an AV (sound / video) device for television, moving image reproduction, music reproduction, a portable information terminal device, a multi-function type, and the like. Built into mobile phones. The own vehicle position display system 1 may be a dedicated system for displaying the vehicle position display image 21 on the display screen 53, or may be configured integrally with the display device 54.

2. Vehicle position acquisition unit 10
The vehicle position acquisition unit 10 is a functional unit that acquires vehicle position information representing the position of the vehicle.
In the present embodiment, the vehicle position acquisition unit 10 is configured to acquire position related information from the vehicle position acquisition device 50, determine the current position of the vehicle based on the position related information, and acquire the vehicle position information. Has been.
The vehicle position acquisition device 50 includes a GPS (Global Positioning System) receiver, an acceleration sensor, an orientation sensor, a receiver that receives radio waves and light including point position information transmitted from a beacon installed on a road, and the like. Various devices for detecting position information are provided. The vehicle position acquisition device 50 is a communication device that receives radio waves including point position information such as a base station transmitted from a base station of a mobile phone line or an access point of a wireless LAN, and the vehicle position acquisition unit 10 The vehicle position may be determined based on the received location information.
Map data may be used for this position determination. For example, the vehicle position acquisition unit 10 determines the current position of the vehicle by pattern matching between a road network included in the map data and a route indicated by a history of vehicle position information obtained from the vehicle position acquisition device 50. May be configured.

3. Map data acquisition unit 15
The map data acquisition unit 15 is a functional unit that acquires map data.
In the present embodiment, the map data acquisition unit 15 is configured to acquire map data around the vehicle position from the map database 51 based on the vehicle position information determined by the vehicle position acquisition unit 10. . The map data includes node data indicating points such as intersections on the map, road network data composed of link data indicating roads connecting the nodes, and the like. Each node data includes data such as location coordinates, location attributes, and location names of each location, and each link data includes location coordinates, link lengths, road types, etc. of link start and end points. .
The road type information includes information on the type and grade of the road, such as an expressway, a general national road, a prefectural road, a municipal road, a narrow street, and an interchange that connects the highway with a general road. Information such as whether or not. Note that examples of road types may differ from country to country.

  The map database 51 is stored in a navigation device, an AV device, an information terminal device, a portable information terminal device, a multifunctional mobile phone, or the like in which the vehicle position display system 1 is incorporated. Alternatively, the map database 51 is stored in an external information terminal device, and the map data acquisition unit 15 acquires map data from the external information terminal device via data communication such as wireless communication or wired communication. May be configured.

4). Road judgment part 35
The road determination unit 35 is a functional unit that determines whether a road on which a vehicle is traveling (hereinafter referred to as a traveling road) is a high-speed cruise road or a general road.
The road determination unit 35 is based on road type information (highways, general national roads, prefectural roads, municipal roads, narrow streets, interchanges, etc.) related to the traveling road included in the map data acquired by the map data acquisition unit 15. The road on which the vehicle is traveling is configured to determine whether it is a high-speed cruise road or a general road.
A high-speed cruise road is an automobile-only road for traveling at high speed. A high-speed cruise road is basically a round-trip separation traffic, and there are no traffic lights and stop signs except for junctions and toll booths. Further, on the high-speed cruise road, a legal speed limit higher than that of a general road is set. The general road is a road other than a high-speed cruise road where vehicles can pass.

  In this example, when the road type of the road is a highway, the road determination unit 35 determines that the road is a high-speed cruise road, and the road type of the road is a general national road or prefecture other than the highway. In the case of roads, municipal roads, narrow streets, interchanges, etc., the traveling road is determined to be a general road.

5. Display image generation unit 20
The display image generation unit 20 is a functional unit that generates a vehicle position display image 21 in which a vehicle position mark 23 for representing the vehicle position is displayed on the map image 22 based on the map data and the vehicle position information. As shown in FIG. 2, the display image generation unit 20 generates a map image 22 representing roads and buildings around the vehicle position based on the acquired map data. The map image 22 is not limited to a plan view as shown in FIG. 2 but may be a bird's eye view or a three-dimensional map image. Then, the display image generation unit 20 generates a vehicle position display image 21 by superimposing the vehicle position mark 23 on the generated map image 22. In addition, the display form of the vehicle position mark 23 is controlled by the vehicle position mark control part 40 so that it may mention later.

6). Operating state determination unit 30
The driving state determination unit 30 is a functional unit that determines the driving state of the vehicle.
In the present embodiment, the driving state determination unit 30 is configured to acquire driving state related information from the driving information acquisition device 52 and to determine the driving state of the vehicle based on the driving state related information.

In the present embodiment, the driving state determination unit 30 is configured to determine, as the driving state, the magnitude of a load on the vehicle (hereinafter also referred to as a vehicle load) while the vehicle is traveling.
Specifically, the driving state determination unit 30 is based on at least one of the acceleration / deceleration in the traveling direction of the vehicle, the acceleration / deceleration in the lateral direction of the vehicle, and the fuel consumption rate of the vehicle during traveling. Vehicle load) is determined. Note that when the driving state determination unit 30 determines the driving state (vehicle load) based on two or more of these three indicators, for example, the evaluation result of each indicator is weighted and totaled evaluation result Configured to be based on

<Acceleration / deceleration in the direction of travel>
The acceleration / deceleration in the traveling direction of the vehicle is a change amount of the vehicle speed per unit time (for example, km / h / s) in the traveling direction of the vehicle, the acceleration is a positive value, and the deceleration is a negative value. Value. The driving state determination unit 30 acquires vehicle speed information by wired or wireless communication as a driving information acquisition device 52 from a control device that controls an internal combustion engine, a driving device, a vehicle instrument panel, or the like. The amount of change in vehicle speed per unit time is calculated. Or the driving | running state determination part 30 acquires the detection information of an acceleration from the triaxial acceleration sensor which can detect the acceleration of the three directions of an XYZ axis as the driving information acquisition apparatus 52, Based on the acquired detection information of the acceleration In addition to determining the traveling direction of the vehicle, the acceleration or deceleration in the traveling direction of the vehicle is calculated.

  The driving state determination unit 30 determines that the vehicle load increases as the acceleration or deceleration magnitude (absolute value) in the traveling direction of the vehicle increases, and the vehicle load increases as the acceleration or deceleration decreases. Judge that it has become smaller. For example, the driving state determination unit 30 determines whether the magnitude of the acceleration or deceleration in the traveling direction of the vehicle is equal to or greater than a predetermined determination threshold, and the acceleration or deceleration is determined during a predetermined determination period. The number of times that the size is equal to or greater than the determination threshold is calculated. And the driving | running state determination part 30 determines with the vehicle load becoming large, so that the frequency | count which became the determination threshold value form during the determination period becomes large. Here, the determination period is a period until a predetermined time elapses, a period until the vehicle travels a predetermined distance, a period until the vehicle starts moving from a stopped state and stops again, and the like. be able to. For example, when the traveling road of the vehicle is determined to be a high-speed cruise road, the determination period may be a period according to time or distance, and when the traveling road of the vehicle is determined to be a general road, The determination period may be a period from when the vehicle starts moving until it stops again.

<Horizontal acceleration / deceleration>
The lateral acceleration / deceleration of the vehicle is a change amount of the vehicle speed per unit time (for example, km / h / s) in the lateral direction (right direction or left direction) orthogonal to the traveling direction of the vehicle. . The driving state determination unit 30 acquires, as the driving information acquisition device 52, acceleration detection information from a three-axis acceleration sensor that can detect accelerations in three directions of the XYZ axes, and based on the acquired acceleration detection information, the vehicle And the acceleration or deceleration in the lateral direction (right direction or left direction) orthogonal to the traveling direction of the vehicle is calculated.

  The driving state determination unit 30 determines that the vehicle load increases as the magnitude (absolute value) of the lateral acceleration or deceleration increases, and the vehicle load decreases as the acceleration or deceleration decreases. It is determined that For example, the driving state determination unit 30 determines whether the magnitude of the lateral acceleration or deceleration of the vehicle is equal to or greater than a predetermined determination threshold, and the acceleration or deceleration is determined during a predetermined determination period. The number of times that the size is equal to or greater than the determination threshold is calculated. And the driving | running state determination part 30 determines with the vehicle load becoming large, so that the frequency | count which became the determination threshold value form during the determination period becomes large. Here, the determination period can be a period appropriately selected from a plurality of types of periods described as the determination period in the acceleration / deceleration in the traveling direction.

<Fuel consumption rate>
The fuel consumption rate is so-called fuel efficiency, and is a travel distance per unit fuel consumption (for example, km / L) or a fuel consumption per unit travel distance (for example, L / km). The driving state determination unit 30 acquires, as the driving information acquisition device 52, information related to the fuel consumption rate by wired or wireless communication from a control device that controls an internal combustion engine, a driving device, an instrument panel of a vehicle, or the like.

  The driving state determination unit 30 determines that the vehicle load increases as the fuel consumption rate deteriorates, and determines that the vehicle load decreases as the fuel consumption rate increases. For example, the driving state determination unit 30 calculates an average value of the fuel consumption rate during a predetermined determination period, and determines that the vehicle load increases as the average value of the fuel consumption rate becomes worse than the reference value. It is determined that the vehicle load decreases as the reference value is improved. Here, the reference value may be changed according to the type of road on which the vehicle is traveling and the type of vehicle. The determination period can be a period appropriately selected from a plurality of types of periods described as the determination period in the acceleration / deceleration in the traveling direction.

7). Vehicle position mark control unit 40
The vehicle position mark control unit 40 is a functional unit that periodically changes the vehicle position mark 23 and changes a cycle ΔTm that changes the vehicle position mark 23 according to the driving state.

<Periodic change>
The vehicle position mark control unit 40 is configured to periodically change at least one of the size, color, and shape of the vehicle position mark 23.
In the present embodiment, the vehicle position mark control unit 40 is configured to periodically change at least the size of the vehicle position mark 23. In the example illustrated in FIG. 3, the vehicle position mark control unit 40 is configured to periodically change the color of the vehicle position mark 23 in addition to the change in the size of the vehicle position mark 23. Specifically, the vehicle position mark control unit 40 is configured to lighten the color of the own vehicle mark as the vehicle position mark 23 is reduced, and to increase the color of the vehicle position mark 23 as the vehicle position mark 23 is increased. Has been.

  In the example shown in FIG. 3, the vehicle position mark 23 changes from the state where the size is the smallest and the color is lightest to the state where the size is the largest and the color is darkest during one cycle ΔTm. Again, the size is changed to be the smallest and the color is the lightest. In the example shown in FIG. 3, in order to improve the feeling of dynamism and to be close to the state where the heart beats, from the state where the size is the largest compared with the period until the size changes from the smallest state to the largest state. The period until the state changes to the smallest state is long (in this example, doubled). Note that the period in which the size changes from the largest state to the small state may be shortened in comparison with the period in which the size changes from the smallest state to the larger state. In the example shown in FIG. 3, changes in three steps of small, large, and medium are shown, but the size and color may be continuously changed between the steps.

  In the example shown in FIG. 3, the vehicle position mark 23 has an arrow (arrowhead) indicating the traveling direction of the vehicle in a circle, the circle and the arrow are colored, and the other portions are transparent. It is. The change in the size of the vehicle position mark 23 is a similar change in which the shape is the same and the size is changed. The vehicle position mark 23 may be a mark having an arbitrary shape such as a vehicle shape mark. Further, the vehicle position mark 23 may not be changed in a similar shape, but the shape may be changed periodically.

  In the example shown in FIG. 3, the color of the vehicle position mark 23 is periodically changed in density of a predetermined color (in this example, black). The transparency of the color of the vehicle position mark 23 may be changed periodically. In other words, the vehicle position mark 23 may be made darker by periodically increasing the transparency, and darker by decreasing the transparency. The color of the vehicle position mark 23 may be configured such that the color is periodically changed between a plurality of colors (for example, red and blue).

<Change of period ΔTm>
The vehicle position mark control unit 40 changes the cycle ΔTm for changing the vehicle position mark 23 according to the driving state.
In the present embodiment, as shown in FIGS. 3 and 4, the vehicle position mark control unit 40 is configured to shorten the period ΔTm as the load on the vehicle determined by the driving state determination unit 30 increases. ing.
As shown in FIG. 4, the vehicle position mark control unit 40 may be configured to continuously change the cycle ΔTm according to the vehicle load, or may be configured to change the cycle ΔTm step by step. May be.

In the present embodiment, the vehicle position mark control unit 40 interrupts the periodic change of the vehicle position mark 23 while the vehicle is moving, and periodically changes the vehicle position mark 23 while the vehicle is stopped. The period ΔTm is changed according to the state. In this example, when the vehicle position mark control unit 40 interrupts the periodic change of the vehicle position mark 23, the vehicle position mark 23 as shown in FIG. Mark 23 is set.
The vehicle position mark control unit 40 determines whether the vehicle is stopped or the vehicle is moving based on vehicle position information, vehicle speed information, and the like.

However, while traveling on a high-speed cruise road, the frequency of stopping the vehicle is low, and the frequency of periodically changing the vehicle position mark 23 is low.
Therefore, when the vehicle position mark control unit 40 determines that the vehicle is traveling on a high-speed cruise road by the road determination unit 35, the vehicle position mark control unit 40 regardless of whether the vehicle is moving or stopped. The mark 23 is periodically changed and the period ΔTm is changed according to the operating state.
On the other hand, if the vehicle position mark control unit 40 determines that the vehicle is traveling on a general road by the road determination unit 35, as described above, the vehicle position mark control unit 40 periodically detects the vehicle position mark 23. The change is interrupted, and the vehicle position mark 23 is periodically changed while the vehicle is stopped, and the period ΔTm is changed according to the driving state.

8). Next, the procedure of the vehicle position display process (vehicle position display method and vehicle position display program) will be described with reference to the flowchart shown in FIG.
First, in step # 01, the vehicle position acquisition unit 10 executes a vehicle position acquisition process (vehicle position acquisition step, vehicle position acquisition function) for acquiring vehicle position information representing the position of the vehicle.
Next, the map data acquisition unit 15 executes a map data acquisition process (map data acquisition step, map data acquisition function) for acquiring map data (step # 02). Then, the road determination unit 35 executes road determination processing (road determination step, road determination function) for determining whether the road on which the vehicle is traveling is a high-speed cruise road or a general road (step # 03). ). The driving state determination unit 30 executes a driving state determination process (driving state determination step, driving state determination function) for determining the driving state of the vehicle (step # 04).

Then, the vehicle position mark control unit 40 periodically changes the vehicle position mark 23 and changes the cycle ΔTm for changing the vehicle position mark 23 according to the driving state (vehicle position mark control step). The vehicle position mark control function) is executed (step # 05).
In this embodiment, when the vehicle position mark control unit 40 determines that the vehicle is traveling on a general road by the road determination unit 35 (step # 051: No), the vehicle is stopped or moving. A process of determining whether or not is (step # 052). When the vehicle position mark control unit 40 determines that the vehicle is stopped (step # 052: Yes), the vehicle position mark control unit 40 periodically changes the vehicle position mark 23 and changes the cycle ΔTm according to the driving state. Execute (step # 053). On the other hand, if vehicle position mark control unit 40 determines that the vehicle is moving (step # 052: No), it executes a process of interrupting the periodic change of vehicle position mark 23 (# 054).

  On the other hand, when the road determination unit 35 determines that the vehicle is traveling on a high-speed cruise road (step # 051: Yes), the vehicle position mark control unit 40 is moving or stopped. Regardless of this, a process of periodically changing the vehicle position mark 23 and changing the period ΔTm according to the driving state is executed (step # 053).

  The display image generating unit 20 generates a vehicle position display image 21 in which a vehicle position mark 23 for representing a vehicle position is displayed on the map image 22 based on the map data and the vehicle position information. An image generation step and a display image generation function) are executed (step # 06). Then, the host vehicle position display system 1 executes a process of displaying the vehicle position display image 21 on the display screen 53.

[Outline of Embodiment of the Present Invention]
The vehicle position display system 1 according to the embodiment of the present invention described above has at least the following configuration. That is, the vehicle position display system 1 is based on the vehicle position acquisition unit 10 that acquires vehicle position information that represents the position of the vehicle, the map data acquisition unit 15 that acquires map data, the map data, and the vehicle position information. A display image generation unit 20 that generates a vehicle position display image 21 in which a vehicle position mark 23 for representing a vehicle position is displayed superimposed on the map image 22, a driving state determination unit 30 that determines the driving state of the vehicle, a vehicle position A vehicle position mark control unit 40 that periodically changes the mark 23 and changes a cycle ΔTm of changing the vehicle position mark 23 according to the driving state.

  With such a configuration, the vehicle position mark 23 is periodically changed, and the cycle is changed according to the driving state. Therefore, the driving state of the vehicle can be changed by an expression that is rich in change and easy to understand for the user. Can be expressed. Thus, for example, the vehicle position mark 23 can be expressed with a sense of dynamism and vitality, such as being able to make the heart beat of a human. As a specific example, the vehicle is anthropomorphic so that the cycle of the heart beats according to the driving state, just as a human changes the cycle of the heart beat according to the motion state. Users can feel it. Therefore, it becomes easy for the user to impress and understand the driving state of the vehicle more strongly.

  In the embodiment of the present invention, the driving state determination unit 30 determines the load on the vehicle while the vehicle is running as the driving state, and the vehicle position mark control unit 40 has a large load on the vehicle. Accordingly, it is preferable to shorten the cycle by ΔTm.

  According to this configuration, the cycle ΔTm is shortened as the load on the vehicle increases. For example, it is easy to remind the user that the cycle of the heart beat decreases as the exercise load on the human increases. It becomes easy for the user to personify the vehicle.

  In the embodiment of the present invention, it is preferable that the vehicle position mark control unit 40 periodically changes at least the size of the vehicle position mark 23.

  According to this configuration, the dynamic feeling of the vehicle position mark 23 can be improved and the vitality can be felt more. Moreover, it becomes easy to remind the user that the heart contracts due to pulsation, and the user can easily personify the vehicle.

  Further, in the embodiment of the present invention, the vehicle position mark control unit 40 reduces the color of the own vehicle mark as the vehicle position mark 23 is reduced, and increases the color of the vehicle position mark 23 as the vehicle position mark 23 is increased. It is preferable.

  According to this configuration, since the color of the vehicle position mark 23 becomes darker as the vehicle position mark 23 becomes larger, it is possible to make the user feel more strongly when the vehicle position mark 23 expands. On the other hand, since the color of the vehicle position mark 23 becomes lighter as the vehicle position mark 23 becomes smaller, it is possible to make the user feel more strongly that the vehicle position mark 23 is reduced. Therefore, it becomes easy for the user to associate the feeling of dynamism when the heart beats, and the user can easily personify the vehicle.

  In the embodiment of the present invention, the vehicle position mark control unit 40 interrupts the periodic change of the vehicle position mark 23 while the vehicle is moving, and periodically changes the vehicle position mark 23 while the vehicle is stopped. It is preferable to change the period according to the operating state.

  According to this configuration, since the periodic change of the vehicle position mark 23 is interrupted while the vehicle is moving, the map image 22 becomes difficult to see due to the vehicle position mark 23 because the vehicle position mark 23 becomes large. This can be suppressed.

  The embodiment of the present invention further includes a road determination unit 35 that determines whether the road on which the vehicle is traveling is a high-speed cruise road or a general road, and the vehicle position mark control unit 40 includes: If it is determined that the vehicle is traveling on a high-speed cruise road, the vehicle position mark 23 is periodically changed and the cycle is changed according to the driving state regardless of whether the vehicle is moving or stopped. If it is determined that the vehicle is traveling on a general road, the vehicle position mark 23 is periodically stopped while the vehicle is moving, and the vehicle position mark 23 is periodically moved while the vehicle is stopped. It is preferable to change the period according to the operating state.

  When the vehicle is traveling on a high-speed cruise road, the frequency at which the vehicle stops is low. Therefore, if the vehicle position mark 23 is periodically changed during the stop, it is difficult for the user to recognize the driving state. Become. Therefore, according to the above configuration, when it is determined that the vehicle is traveling on a high-speed cruise road, the vehicle position mark 23 is periodically displayed regardless of whether the vehicle is moving or stopped. It is comprised so that it may be changed and a period may be changed according to a driving | running state. Therefore, even when the vehicle is traveling on a high-speed cruise road, the user can recognize the driving state of the vehicle by the periodic change of the vehicle position mark 23. The high-speed cruise road has fewer road branches and merges than the general road, and the road shape is simple. Therefore, the map image 22 is seen by the vehicle position mark 23 because the vehicle position mark 23 becomes larger. It is relatively difficult for things to become difficult.

  In the embodiment of the present invention, the driving state determination unit 30 is based on at least one of the fuel consumption rate of the vehicle, the acceleration / deceleration in the traveling direction of the vehicle, and the acceleration / deceleration in the lateral direction of the vehicle during traveling. It is preferable to determine the driving state.

  According to this configuration, it is possible to appropriately determine the driving state of the vehicle that is highly interested by the user.

[Other Embodiments]
Finally, other embodiments of the present invention will be described.
(1) When it is determined that the vehicle is traveling on a general road, the vehicle position mark control unit 40 interrupts the periodic change of the vehicle position mark 23 while the vehicle is moving, and the vehicle is stopped. Further, the case where the vehicle position mark 23 is periodically changed and the cycle is changed according to the driving state has been described as an example. However, the embodiment of the present invention is not limited to this. That is, even when it is determined that the vehicle is traveling on a general road, the vehicle position mark control unit 40 periodically sets the vehicle position mark 23 regardless of whether the vehicle is moving or stopped. It may be configured to change.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for a vehicle position display system that displays a vehicle position display image in which a vehicle position mark for representing a vehicle position is displayed on a map image on a display screen.

1: Vehicle position display system 10: Vehicle position acquisition unit 15: Map data acquisition unit 20: Display image generation unit 21: Vehicle position display image 22: Map image 23: Vehicle position mark 30: Driving state determination unit 35: Road determination Unit 40: Vehicle position mark control unit 50: Vehicle position acquisition device 51: Map database 52: Driving information acquisition device 53: Display screen 54: Display device ΔTm: Period

Claims (9)

A vehicle position acquisition unit for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition unit for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination unit for determining a driving state of the vehicle;
A vehicle position mark control unit that periodically changes the vehicle position mark and changes a cycle in which the vehicle position mark is changed according to the driving state;
The vehicle position display system equipped with. The driving state determination unit determines a magnitude of a load on the vehicle while the vehicle is running as the driving state,
The said vehicle position mark control part is the own vehicle position display system of Claim 1 which shortens the said period as the load to the said vehicle becomes large.   The host vehicle position display system according to claim 1, wherein the vehicle position mark control unit periodically changes at least the size of the vehicle position mark.   4. The vehicle position mark control unit according to claim 3, wherein the vehicle position mark control unit decreases the color of the vehicle position mark as the vehicle position mark is reduced, and darkens the color of the vehicle position mark as the vehicle position mark is increased. Car position display system.   The vehicle position mark control unit interrupts a periodic change of the vehicle position mark while the vehicle is moving, periodically changes the vehicle position mark while the vehicle is stopped, and enters the driving state. The own vehicle position display system according to any one of claims 1 to 4, wherein the cycle is changed accordingly. A road determination unit for determining whether the road on which the vehicle is traveling is a high-speed cruise road or a general road;
When it is determined that the vehicle is traveling on the high-speed cruise road, the vehicle position mark control unit cycles the vehicle position mark regardless of whether the vehicle is moving or stopped. The vehicle position mark is periodically changed during the movement of the vehicle when it is determined that the vehicle is traveling on the general road. The own vehicle position according to any one of claims 1 to 5, wherein the vehicle position mark is periodically changed while the vehicle is stopped, and the cycle is changed according to the driving state while the vehicle is stopped. Display system.   The driving state determination unit determines the driving state based on at least one of acceleration / deceleration in the traveling direction of the vehicle, acceleration / deceleration in the lateral direction of the vehicle, and fuel consumption rate of the vehicle during traveling. The host vehicle position display system according to any one of claims 1 to 6. A vehicle position acquisition function for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition function for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination function for determining a driving state of the vehicle;
A vehicle position mark control function for periodically changing the vehicle position mark and changing a cycle for changing the vehicle position mark according to the driving state;
A vehicle position display program that allows a computer to realize the vehicle. A vehicle position acquisition step for acquiring vehicle position information representing the position of the vehicle;
A map data acquisition step for acquiring map data;
Based on the map data and the vehicle position information, a display image generation unit that generates a vehicle position display image in which a vehicle position mark for representing the vehicle position is displayed superimposed on a map image;
A driving state determination step for determining a driving state of the vehicle;
A vehicle position mark control step for periodically changing the vehicle position mark and changing a cycle for changing the vehicle position mark according to the driving state;
The vehicle position display method for causing the arithmetic processing unit to execute.

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