JP2018063266A - Display control unit, display control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately prevent a misunderstanding such as a possibility of arriving close to a periphery of a cruisable range even if an expressway is used.SOLUTION: A display control unit includes: a current position acquisition part configured to acquire a current position of a mobile body; a map information acquisition part configured to acquire map information including multiple types of roads; and a display control part configured to display, on a display part, a cruisable range being a reachable range for the mobile body from the current position, according to a residual energy amount possessed by the mobile body, together with the map information. The display control part prevents at least part of a road of a predetermined road type existing within the cruisable range from being displayed on the display part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to the technical field of displaying a cruising range.

  2. Description of the Related Art Conventionally, a technique for estimating a cruising range based on a remaining capacity of an electric vehicle battery and displaying a cruising range (reachable range) on a map is known (see, for example, Patent Document 1). .

JP 2011-217509 A

  By the way, in an electric vehicle, when traveling on an expressway, there is a tendency that the electric combustion is greatly reduced. Therefore, there is a possibility that a place that can be reached when using a general road cannot be reached when using an expressway. Usually, the cruising range includes such a place that can be reached when using a general road but cannot be reached when using a highway. For example, the location near the outer periphery in the continuable range can be reached when a general road is used, but it is highly likely that it cannot be reached when an expressway is used. However, in the conventional display of the cruising distance, there is a case where a misunderstanding such as being able to reach a place near the outer peripheral portion in the cruising range even when using the expressway may be caused.

  The above-mentioned thing is mentioned as an example as a subject which the present invention tends to solve. The main object of the present invention is to provide a display control device and the like that can appropriately suppress the occurrence of misunderstandings such as being able to reach the vicinity of the outer periphery in a cruising range even when using an expressway. .

  The invention according to claim 1 is a display control device that displays a cruising range that is a reachable range from the current position of the moving body, along with map information, based on the remaining energy of the moving body. A display control unit to be displayed on the display unit, and when the display control unit displays the cruising range together with the map information on the display unit, the mobile body travels on a road of a predetermined road type within the cruising range. A notification control unit that causes the notification unit to notify the user that there is a possibility that the user cannot reach even the location.

  The invention according to claim 4 is a display control method executed by the display control device, and is capable of cruising in a range that can be reached from the current position of the moving body based on the remaining amount of energy held by the moving body. A display control step for displaying the range on the display unit together with the map information, and when the display control step displays the cruising range on the display unit together with the map information, the mobile body selects a road of a predetermined road type. And a notification control step of notifying a user that there is a possibility that the vehicle cannot reach even a place within the cruising range when traveling.

  The invention according to claim 5 is a program executed by a display control device including a computer, and is a cruising range that is reachable from the current position of the moving body based on the remaining amount of energy held by the moving body A display control unit that displays a possible range on a display unit together with map information, and when the display control unit displays the cruising range on the display unit together with the map information, the moving body displays a road of a predetermined road type. The computer is caused to function as a notification control unit that causes a notification unit to notify a user that there is a possibility that the vehicle cannot reach even a place within the cruising range when traveling.

1 shows a schematic configuration of a navigation device according to the present embodiment. An example of the conventional cruising range display image is shown. An example of the cruising range display image which concerns on a present Example is shown. An example of the cruising range display image which concerns on the modification 1 is shown. An example of the cruising range display image which concerns on the modification 2 is shown. The schematic structure of the system which concerns on the modification 3 is shown.

  In one aspect of the present invention, a display control device includes a current position acquisition unit that acquires a current position of a moving object, a map information acquisition unit that acquires map information including a plurality of types of roads, and the moving object. A display control unit that displays on the display unit together with the map information a cruising range that is a range that the mobile body can reach from the current position based on a remaining amount of energy, and the display control unit includes: At least a part of roads of a predetermined road type existing within the cruising range is not displayed on the display unit.

  In the above display control device, the current position acquisition unit acquires the current position of a mobile body (for example, an electric vehicle), and the map information acquisition unit includes a plurality of types of roads (a road of a predetermined road type or a predetermined road type). Map information including roads other than. And a display control part calculates | requires a cruising range based on the energy remaining amount which a mobile body holds, and displays a cruising range with map information on a display part. In this case, the display control unit hides at least a part of roads of a predetermined road type existing within the cruising range. For example, the road of a predetermined road type is a highway automobile national road or an automobile exclusive road. According to said display control apparatus, if it is a place within the cruising range, generation | occurrence | production of the misunderstanding that it can reach even if it uses what kind of road can be suppressed appropriately. For example, it is possible to appropriately suppress the occurrence of misunderstanding that even a highway can be used to reach a location near the outer periphery of the cruising range.

  Preferably, in the display control apparatus, the map information includes a first layer in which information on roads of the predetermined road type is stored, and a second layer in which information on roads other than the predetermined road types is stored. The display control unit does not display at least a part of the information stored in the first layer when displaying the cruising range.

  Also preferably, the display control device notifies the user that the mobile body may not be able to reach even within the cruising range when the mobile body travels on the road of the predetermined road type. A notification control unit for notification is further provided. Accordingly, it is possible to more effectively suppress the occurrence of misunderstandings such that the vicinity of the outer peripheral portion of the cruising range can be reached even if the expressway is used.

  In another aspect of the present invention, the server device includes a current position acquisition unit that acquires a current position of a mobile object, a map information acquisition unit that acquires map information including a plurality of types of roads, and energy that the mobile object has. Based on the remaining amount, a calculation unit that calculates a cruising range that is a range that the mobile body can reach from the current position, and an image in which the cruising range is displayed in the map information, An image generation unit that generates image information excluding at least a part of road information of a predetermined road type, and a transmission unit that transmits the image information generated by the image generation unit to a terminal device.

  In another aspect of the present invention, a display control method executed by a display control device includes a current position acquisition step of acquiring a current position of a moving body, a map information acquisition step of acquiring map information including a plurality of types of roads, A display control step of displaying, on the display unit together with the map information, a cruising range that is a range that the mobile body can reach from the current position, based on a remaining amount of energy held by the mobile body, In the display control step, at least a part of roads of a predetermined road type existing within the cruising range is not displayed on the display unit.

  In another aspect of the present invention, a program executed by a display control device including a computer includes: a current position acquisition unit that acquires a current position of a mobile object; a map information acquisition unit that acquires map information including a plurality of types of roads; The computer functions as display control means for displaying a cruising range, which is a range that the mobile body can reach from the current position, on the display unit together with the map information, based on the remaining amount of energy held by the mobile body The display control means does not display at least a part of a road of a predetermined road type existing within the cruising range on the display unit.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<Device configuration>
FIG. 1 shows a configuration of a navigation device 1 according to the present embodiment. The navigation device 1 can be, for example, a stationary navigation device installed in a vehicle, a PND (Portable Navigation Device), or a mobile phone such as a smartphone. In a preferred example, the navigation device 1 is mounted on an electric vehicle (EV vehicle). Below, the case where the navigation apparatus 1 is applied to an electric vehicle is mentioned as an example. An electric vehicle is sometimes simply referred to as a “vehicle”.

  As shown in FIG. 1, the navigation device 1 mainly includes an independent positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, and a display unit 40. A voice output unit 50 and an input device 60.

  The autonomous positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position (current position) of the vehicle from latitude and longitude information. Note that the current position used in various controls and processes is not limited to using the value acquired from the GPS receiver 18, but the value acquired from the GPS receiver 18 and / or acquired from the autonomous positioning device 10. A value obtained based on the obtained value may be used.

  The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation device 1.

  The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. For example, the CPU 22 obtains a guidance route (guidance route) to the destination based on the map information stored in the data storage unit 36, and performs route guidance based on the guidance route. Details of processing and control performed by the CPU 22 in this embodiment will be described later. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50, and an input device 60 are mutually connected via a bus line 30. It is connected to the.

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

  The data storage unit 36 is configured by, for example, an HDD or the like, and stores map information (map data), information necessary for obtaining a cruising range, and the like. For example, the map information is information including data on links (roads), data on nodes (intersections, etc.), and data on road types (general roads, expressways, etc.) for each road.

  The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and receives various types of information. The interface 37 performs an interface operation of the communication device 38 and inputs information received by the communication device 38 to the system controller 20 or the like.

  The display unit 40 displays various display data on a display unit such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map information from the data storage unit 36. The display unit 40 displays a map image or the like corresponding to the map information read from the data storage unit 36 by the system controller 20 on the display screen. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 through the bus line 30 and image information that can be displayed immediately, such as a VRAM (Video RAM). A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal based on image data output from the graphic controller 41, and a display 44 are provided. The display 44 functions as an image display unit, and includes, for example, a liquid crystal display device having a diagonal size of about 5 to 10 inches and is mounted near the front panel in the vehicle.

  The audio output unit 50 performs D / A (Digital to Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

<Display control method>
Next, a display control method performed by the CPU 22 in the navigation device 1 in this embodiment will be described. In this embodiment, the CPU 22 obtains a cruising range that is a range that the electric vehicle can reach from the current position based on the remaining amount of energy of the battery of the electric vehicle, and superimposes the cruising range on the map image. Display. In this embodiment, when the cruising range is displayed on the map image in this way, the CPU 22 hides the highway in the map image and displays only the general road.

  The general road corresponds to “a road other than a predetermined road type” in the present invention, and means a road other than a highway automobile national road and an automobile exclusive road. The expressway corresponds to “a road of a predetermined road type” in the present invention, and means a highway automobile national road or an automobile exclusive road.

  The reason for performing the display control as described above will be described with reference to FIG. FIG. 2 shows an example of an image 70 (hereinafter referred to as “a cruising range display image”) in which a cruising range is displayed on a map image. Here, a general cruising range display image 70 is shown. As shown in FIG. 2, in the cruising range display image 70, a cruising range 72 from the current position 73 is displayed on a map image 71 with the current position 73 as a reference. The map image 71 includes general roads and highways. In FIG. 2, the general road is indicated by a solid line, and the expressway is indicated by a broken line. However, the present invention is not limited to displaying the general road and the expressway, and the general road and the expressway have different colors. May be displayed.

  Here, electric vehicles tend to have a significant decrease in electric combustion when traveling on a highway.In other words, when driving on a highway, the cruising range tends to be considerably shorter. If you use the expressway, you may not be able to reach the reachable place. Usually, the cruising range 72 includes such a place that can be reached when using a general road but cannot be reached when using a highway. In other words, places that can be reached using the general road even if they cannot be reached using the expressway are included in the cruising range 72. For example, a place that overlaps with a general road and a highway in the vicinity of the outer periphery of the cruising range 72 (see the broken line area Ar1) can be reached when using a general road, but is reached when using a highway. There is a high possibility of not being able to. However, in the cruising range display image 70 as shown in FIG. 2, there is a possibility of misunderstanding that even a highway can be used to reach a place shown by a broken line area Ar1.

  Therefore, in this embodiment, a cruising range display image that can suppress the occurrence of misunderstanding as described above is displayed. Specifically, in the present embodiment, it is considered that a misunderstanding occurs by displaying a highway in displaying the cruising range on the map image, and the highway in the map image is displayed when the cruising range is displayed. Is hidden.

  Here, the control performed by the CPU 22 in realizing the display as described above will be specifically described. First, CPU22 calculates | requires the cruising range which is a range which an electric vehicle can reach | attain from the present position based on the residual energy of the battery of an electric vehicle, etc. On the other hand, the map information is composed of a first layer storing highway information and a second layer storing general road information, and such map information is stored in the data storage unit 36. Remember me. That is, the map information related to the highway and the map information related to the general road are stored as separate layers. The CPU 22 refers to the map information stored in the data storage unit 36 and displays the highway stored in the first layer when displaying the cruising range obtained as described above on the map image. Is not displayed, and only the information on the general road stored in the second layer is displayed.

  Thus, the CPU 22 corresponds to an example of a “current position acquisition unit”, a “map information acquisition unit”, and a “display control unit” in the present invention. That is, the CPU 22 corresponds to an example of a “display control device” in the present invention.

  The CPU 22 can determine the cruising range by the following method, for example. First, the CPU 22 has a plurality of reachable points that are reachable from the current position of the electric vehicle based on the map information, the remaining energy of the battery of the electric vehicle, and the energy consumed when the electric vehicle travels. Search for a point. In this case, the CPU 22 consumes energy when the electric vehicle travels, for example, energy consumed when the electric vehicle is stopped when the drive source of the electric vehicle is operated, It is determined based on the energy recovered or the energy consumed by the resistance generated when the electric vehicle is running. In determining these energies, the CPU 22 determines the characteristics of the electric vehicle (vehicle weight, motor generator standards, etc.), the state of deterioration of the battery, the state of use of electrical components in the electric vehicle, the state of use of the air conditioner, Various parameters are used, such as the number of passengers of an electric vehicle, road gradient, road type, presence or absence of traffic jams, and how a driver operates. Then, the CPU 22 identifies whether or not the electric vehicle can reach each of a plurality of regions (mesh regions) obtained by dividing the map based on the plurality of reachable points searched as described above. The cruising range of the electric vehicle is determined according to the identification result. In addition, it is not limited to calculating | requiring the cruising range by such a method, A well-known various method can be applied besides this.

  Basically, the above-mentioned cruising range is obtained using information on both general roads and highways. In other words, in consideration of using not only general roads but also highways, a cruising range is required. However, the present invention is not limited to obtaining the cruising range using information on both general roads and expressways, and the cruising range may be obtained using only information on general roads. That is, the cruising range may be obtained when traveling using only a general road without using an expressway. However, the cruising range obtained using only the information on the general road tends to have the same shape as the cruising range obtained using the information on both the general road and the expressway as a result.

  FIG. 3 shows an example of a cruising range display image 80 according to the present embodiment. As shown in FIG. 3, the cruising range display image 80 according to the present embodiment is similar to the cruising range display image 70 described above on the map image 81 based on the current position 83 from the current position 83. The cruising range 82 is displayed in an overlapping manner. However, in the cruising range display image 80 according to the present embodiment, unlike the cruising range display image 70, the map image 81 does not include a highway. In other words, in this embodiment, only the general road (shown by a solid line) is displayed on the map image 81, and the highway is not displayed. In FIG. 3, the expressway is not displayed, but when the expressway is displayed, it is indicated by a broken line. However, the general road is not limited to being indicated by a solid line and the highway is indicated by a broken line, and the general road and the highway may be displayed in different colors.

  According to such a cruising range display image 80, it is possible to appropriately suppress the occurrence of misunderstandings such as being able to reach a location near the outer periphery of the cruising range 82 even when using an expressway.

<Modification>
Below, the modification suitable for an above-described Example is demonstrated. It should be noted that the following modifications can be applied to the above-described embodiments in any combination.

(Modification 1)
In the first modification, when the cruising range display image 80 shown in the above-described embodiment is displayed, it may be impossible to reach even a location within the cruising range 82 when traveling on a highway (hereinafter, simply “warning”). ").) Is displayed. That is, in the first modification, the user is warned that there is a possibility that the vehicle cannot reach even a place within the cruising range 82 when traveling on the expressway.

  Specifically, in the first modification, the CPU 22 displays a warning when an expressway is included in the obtained cruising range 82. For example, as described above, a plurality of reachable points are searched for obtaining the cruising range 82, but the CPU 22 detects a highway node (such as an interchange) in the searched reachable points. , Display a warning. On the other hand, the CPU 22 does not display a warning if the searched reachable point does not include a highway node. Thus, the CPU 22 corresponds to an example of a “notification control unit” in the present invention.

  FIG. 4 shows an example of a cruising range display image 80a according to the first modification. As shown in FIG. 4, in the cruising range display image 80a according to the first modification, on the cruising range display image 80 shown in the above-described embodiment, the “battery within the cruising range when using an expressway is used. Is displayed, a message box 85 is displayed. By displaying such a message box 85, it is possible to more effectively suppress the occurrence of misunderstandings such as being able to reach a location near the outer periphery of the cruising range 82 even when using an expressway.

  4 shows an example in which the message box 85 is displayed on the image showing the map image 81 and the cruising range 82, but the message box 85 is displayed without displaying the map image 81 and the cruising range 82. You may display only.

  Moreover, it is not limited to displaying a warning as mentioned above, You may output a warning with an audio | voice. For example, a warning such as “When using an expressway, there is a possibility that the battery may be insufficient even within the cruising range” can be output by voice.

(Modification 2)
In the above-described embodiment, when the cruising range 82 is displayed on the map image 81, all the highways in the map image 81 are hidden (see FIG. 3), but one of the highways in the map image 81 is displayed. Only the part may be hidden. For example, only highways included in the cruising range 82 can be hidden, and highways not included in the cruising range 82 can be displayed.

  FIG. 5 shows an example of a cruising range display image 80b according to the second modification. As shown in FIG. 5, in the cruising range display image 80b according to Modification 2, only some highways are not displayed. Specifically, only the highway included in the cruising range 82 in the map image 81b is hidden, and the highway that is not included in the cruising range 82 is displayed in the map image 81b.

  In still another example, only the portion of the highway that can be used in the cruising range 82 (the portion of the highway that is determined to be able to travel when determining the cruising range 82) is displayed. The highway part can be hidden.

(Modification 3)
In the above-described embodiment, an example in which the present invention is applied to the navigation device 1 has been described, but the present invention is not limited to this. The present invention can also be applied to a server device that can communicate with a predetermined terminal device.

  FIG. 6 is a block diagram illustrating a schematic configuration of a system according to the third modification. As shown in FIG. 6, the system includes a server device 200 and a terminal device 300. The server device 200 is configured to be communicable with the terminal device 300, and includes a CPU 200a and the like. For example, the terminal device 300 corresponds to a portable terminal such as a smartphone, a navigation device, a head-up display, or the like. The terminal device 300 is mounted on a moving body such as a vehicle.

  In the third modification, the CPU 200a in the server device 200 acquires the current position of the vehicle from the terminal device 300 and the like, and also uses a plurality of types of roads from the storage device (not shown) in the terminal device 300 and the server device 200. Get map information including. In addition, the CPU 200a acquires the remaining amount of energy held by the vehicle (such as the remaining amount of energy of the battery of the electric vehicle), and calculates a cruising range based on the remaining amount of energy. Then, the CPU 200a generates image information in which at least a part of the expressway within the cruising range is hidden from the image in which the cruising range is displayed on the map image, and the image information is transmitted to the terminal device 300. Send. As described above, when the present invention is applied to the server device 200, the CPU 200a in the server device 200 uses the “current position acquisition unit”, “map information acquisition unit”, “calculation unit”, “image generation” in the present invention. Part "and" transmission part ".

  In addition, it is not limited to implement | achieving the component which concerns on such this invention with the one server apparatus 200, The component which concerns on this invention is implement | achieved by a several server apparatus performing a process and control in cooperation It is also good to do.

(Modification 4)
The present invention is not limited to application to electric vehicles. The present invention can be applied to various mobile objects other than electric vehicles. For example, the present invention can be applied to a moving body that uses fossil fuel. In that case, the cruising range may be obtained based on the remaining amount of fossil fuel held by the mobile body.

1 Navigation device 22 CPU
36 Data storage unit 44 Display

Claims (1)

A display control unit that displays a cruising range, which is a reachable range from the current position of the moving body, on a display unit together with map information, based on a remaining amount of energy held by the moving body;
When the display control unit displays the cruising range together with the map information on the display unit, if the mobile body travels on a road of a predetermined road type, there is a possibility that it cannot reach even a place within the cruising range. A notification control unit for informing the user of the effect by the notification unit;
A display control apparatus comprising:

Images