JP4622126B2 - Navigation device, navigation method, and navigation program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device.
[0002]
[Prior art]
Conventionally, in a vehicle equipped with a navigation device, when an operator such as a driver operates a predetermined input unit to set a destination, the destination and the current position of the vehicle detected by the current position detection processing unit Based on the above, a route from the current position to the destination is searched, and the searched route is guided. Therefore, the vehicle can be driven according to the route guidance.
[0003]
In recent years, a digital image captured by an operator using a digital camera and position data of a registration point such as a shooting location and a destination are stored in a storage unit in association with each other. There is provided a navigation device that displays the digital image when a registered point is approached or when a driver or the like designates the registered point on a map with a cursor or the like (Japanese Patent Laid-Open Nos. 9-113291 and 9). -210707).
[0004]
Thereby, the operator can grasp | ascertain correctly the surrounding condition in the intersection etc. which are easy to overlook.
[0005]
In the navigation device, the digital image can be displayed on the entire screen or displayed on a sub-screen. Thereby, the operator can produce an original map.
[0006]
[Problems to be solved by the invention]
However, in the conventional navigation device, the digital image is merely displayed in a predetermined form on the screen, and it is difficult to grasp the distance relationship between the current position of the vehicle and the registered point from the digital image. Met.
[0007]
For example, even if the surrounding situation at an easily overlooked intersection or the like is displayed on the child screen, if it takes time until the vehicle reaches the intersection or the like, the operator pays attention to the display on the child screen as time passes. Therefore, when the vehicle approaches the intersection or the like, the operator may overlook the intersection or the like without paying attention to the display of the child screen.
[0008]
In addition, when the vehicle is displayed on the child screen when approaching the intersection or the like, the operator does not always watch the screen of the navigation device. May reach the intersection or the like.
[0009]
The present invention solves the problems of the conventional navigation device, and as the vehicle approaches the registration point, the display size of the digital image changes, and the operator can easily grasp the distance relationship with the registration point. Navigation device capable of effectively using digital image display , Navigation method and navigation program The purpose is to provide.
[0010]
[Means for Solving the Problems]
Therefore, in the navigation device of the present invention, a registration unit that registers a predetermined point as a registered point, a registered image storage unit that stores a registered image corresponding to the registered point, A level corresponding to the size of the object of the registered image; The size of the image according to the distance between the registration point and the vehicle position The change Let me Display control means for displaying the registered image on a display screen; , Have A navigation device, wherein the level is changed by an operator .
[0011]
In another navigation device of the present invention, Registration means for pre-registering a predetermined spot as a registration spot; registration image storage means for storing a registration image corresponding to the registration spot; The registered image The level corresponding to the size of the object Distance between registration point and vehicle position Display control means for displaying the registered image on a display screen by changing the size of the image according to the level, wherein the level is changed by an operator Is done.
[0012]
The present invention No na Vigoration Method In A step of registering a predetermined point as a registered point in advance, a step of storing a registered image corresponding to the registered point, a step of storing a registered image corresponding to the registered point, and a target of the registered image And a step of displaying the registered image on a display screen by changing the size of the image according to the level corresponding to the size of the vehicle and the distance between the registered location and the vehicle position. Is changed by the operator Is done.
[0013]
The present invention No na Vigoration program In Registration means for preregistering a computer as a registration point for navigation, registration image storage means for storing a registration image corresponding to the registration point, and the size of the object of the registration image A navigation program for functioning as a display control means for displaying the registered image on a display screen by changing the size of the image according to a corresponding level and a distance between the registered location and the vehicle position, wherein the level is an operator Changed by Is done.
[0014]
In yet another navigation device of the present invention, Registration means for pre-registering a predetermined spot as a registration spot, registration image storage means for storing a registration image corresponding to the registration spot, the level set in the registration image, and the registration spot and vehicle position Display control means for displaying the registered image on a display screen in accordance with a distance, wherein the level is changed by an operator, and the display control means includes a level set in the registered image and Control whether or not to display the registration image according to the distance between the registration point and the vehicle position The
[0015]
The present invention Other Navigation Method In Registration means Register in advance as a registration point Step and registered image storage means Stores a registered image corresponding to the registered point Step, and a display control means, the level set in the registered image and Depending on the distance between the registration point and the vehicle position Before Display the registered image on the display screen And the level is changed by an operator, and the display control means is configured to change the registered image according to the level set in the registered image and the distance between the registered location and the vehicle position. Control whether or not to display To do.
[0016]
The present invention Other In this navigation program, a computer is used for navigation, and a predetermined point is set as a registered point. Register in advance Registration means, registration image storage means for storing a registration image corresponding to the registration point, And a navigation program that functions as display control means for displaying the registered image on a display screen according to the level set in the registered image and the distance between the registered location and the vehicle position, wherein the level is determined by an operator. The display control means controls whether to display the registered image according to the level set in the registered image and the distance between the registered location and the vehicle position. The
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
FIG. 2 is a conceptual diagram of the navigation device according to the first embodiment of the present invention, and FIG. 3 is a diagram showing functions of the navigation device according to the first embodiment of the present invention.
[0019]
In the figure, reference numeral 14 denotes a navigation device as a computer. The navigation device 14 is inputted with a current position detection processing unit 15 for detecting a current position, a data recording unit 16 as a recording medium on which road data and the like are recorded. The navigation processing unit 17 that performs various arithmetic processes such as navigation processing based on the information, the input unit 34, the display unit 35, the voice input unit 36, the voice output unit 37, and the communication unit 38. A vehicle speed sensor 41 is connected to the vehicle.
[0020]
The current position detection processing unit 15 includes a GPS (Global Positioning System) 21, a geomagnetic sensor 22, a distance sensor 23, a steering sensor 24, a beacon sensor 25, a gyro sensor 26, an altimeter (not shown), and the like.
[0021]
The GPS 21 detects the current position on the earth by receiving radio waves generated by an artificial satellite, the geomagnetic sensor 22 detects the direction in which the vehicle is facing by measuring the geomagnetism, and the distance The sensor 23 detects a distance between predetermined positions on the road. Examples of the distance sensor 23 include a sensor that measures the rotational speed of a wheel (not shown) and detects a distance based on the rotational speed, a sensor that measures acceleration, integrates the acceleration twice, and detects a distance. Can be used.
[0022]
The steering sensor 24 detects a rudder angle, and the steering sensor 24 is, for example, an optical rotation sensor, a rotation resistance sensor, or a wheel attached to a rotating portion of a steering wheel (not shown). An angle sensor or the like is used.
[0023]
And the said beacon sensor 25 receives the positional information from the beacon arrange | positioned along the road, and detects a present position. The gyro sensor 26 detects the rotational angular velocity of the vehicle, that is, the turning angle. As the gyro sensor 26, for example, a gas rate gyro, a vibration gyro, or the like is used. Then, by integrating the turning angle detected by the gyro sensor 26, it is possible to detect the direction in which the vehicle is facing.
[0024]
The GPS 21 and the beacon sensor 25 can detect the current position independently. The current position can also be detected by combining the distance detected by the distance sensor 23 and the orientation detected by the geomagnetic sensor 22 and the gyro sensor 26. The current position can also be detected by combining the distance detected by the distance sensor 23 and the steering angle detected by the steering sensor 24.
[0025]
The data recording unit 16 is a facility information in which information on facilities such as map data files, intersection data files, node data files, road data files, photo data files, and hotels, gas stations, and sightseeing spot information in each region is recorded. It has a database consisting of data files. In addition to the data for searching for a route, the data recording unit 16 displays a guide map along the searched route on the screen of the display unit 35, or a characteristic photograph at an intersection or a route. Various data for recording a frame diagram, displaying a distance to the next intersection, a traveling direction at the next intersection, and other guidance information are recorded. The data recording unit 16 also records various data for outputting predetermined information by the audio output unit 37.
[0026]
By the way, intersection data relating to each intersection is recorded in the intersection data file, node data relating to node points is recorded in the node data file, and road data relating to roads are recorded in the road data file, respectively, and the intersection data, node data and road data are recorded. The road condition is displayed on the screen. The node data constitutes at least the position and shape of the road in the map data recorded in the map data file, and includes actual branch points (including intersections, T-junctions, etc.), node points , And data indicating a link connecting each node point. The node point indicates at least the position of a road bending point.
[0027]
And according to the road data, the width of the road itself, the slope, the cant, the bank, the road surface condition, the number of road lanes, the number of road lanes decreasing, the point of narrowing the width, etc. Is the radius of curvature, intersection, T-junction, corner entrance, etc. The road attributes are railroad crossing, highway exit rampway, highway tollgate, downhill road, uphill road, road type (national road, general road, Expressway etc.) are configured.
[0028]
The navigation processing unit 17 includes a CPU 31 that controls the entire navigation device 14, a RAM 32 that is used as a working memory when the CPU 31 performs various arithmetic processes, a control program, and a route to a destination. It comprises a ROM 33 as a recording medium on which various programs for searching, driving guidance on a route, determination of a specific section, etc. are recorded, and the navigation processing unit 17 includes the input unit 34, display unit 35, audio An input unit 36, an audio output unit 37, and a communication unit 38 are connected.
[0029]
Here, the program includes a registration unit for registering a computer for navigation as a registration point, a registration image storage unit for storing a registration image corresponding to the registration point, and the registration point and the vehicle. Also included is a navigation program that functions as display control means for displaying the registered image on a display screen so that the size of the image changes according to the distance from the position. Computer-readable recording media on which the navigation program is recorded are not only semiconductor memories, but also magnetic tapes, magnetic disks, floppy disks, magnetic drums, CD-ROMs, MDs, DVD-ROMs, optical disks, MOs, and IC cards. It includes recording media of all forms such as optical cards and memory cards.
[0030]
The data recording unit 16 and the ROM 33 are configured by a magnetic core, a semiconductor memory, etc. (not shown). In addition, as the data recording unit 16 and the ROM 33, various kinds of storage such as magnetic tape, magnetic disk, floppy disk, magnetic drum, CD-ROM, MD, DVD-ROM, optical disk, MO, IC card, optical card, memory card, etc. Media can also be used. The storage medium may be preinstalled in the navigation device 14 or may be replaced as appropriate by the driver or the like.
[0031]
In the present embodiment, various programs are recorded in the ROM 33 and various data are recorded in the data recording unit 16, but the program and data may be recorded in the same external storage medium. it can. In this case, for example, a flash memory (not shown) may be provided in the navigation processing unit 17, and the program and data may be read from the external storage medium and written to the flash memory. Therefore, the program and data can be updated by exchanging the external storage medium. Further, a control program of an automatic transmission control device (not shown) can be recorded on the external storage medium. As described above, it is possible to start programs recorded in various recording media and perform various processes based on the data. The external storage medium may be any kind of magnetic tape, magnetic disk, floppy disk, magnetic drum, CD-ROM, MD, DVD-ROM, optical disk, MO, IC card, optical card, memory card, etc. Also good.
[0032]
Further, the communication unit 38 is for transmitting and receiving various data to and from an FM transmitter, a telephone line, etc., for example, road information such as traffic jams received by an information sensor (not shown), traffic accidents, etc. Information and various data such as D-GPS information for detecting a detection error of the GPS 21 are received. Note that at least a part of a program and data for realizing the functions of the present invention may be received by the communication unit 38 and recorded in a flash memory or the like.
[0033]
The input unit 34 is for correcting the position at the start of traveling or inputting a destination, and operates the operation keys, operation menus, and the like displayed as images on the screen of the display unit 35. Consists of switches. Therefore, input can be performed by pressing (touching) the operation switch. As the input unit 34, a keyboard, mouse, bar code reader, light pen, remote control device for remote control, etc., which are arranged separately from the display unit 35, can be used.
[0034]
The display unit 35 displays operation guidance, an operation menu, operation key guidance, a route from the current position to the destination, guidance information along the route, and the like. As the display unit 35, a CRT display, a liquid crystal display, a plasma display, a hologram device that projects a hologram on a windshield, or the like can be used.
[0035]
The voice input unit 36 includes a microphone (not shown) and the like, and can input necessary information by voice. Furthermore, the voice output unit 37 includes a voice synthesizer and a speaker (not shown), and outputs voice information, for example, guidance information composed of voice synthesized by the voice synthesizer, shift information, and the like from the speaker to notify the operator. In addition to the voice synthesized by the voice synthesizer, various kinds of sound and various kinds of guidance information recorded in advance on a tape, a memory, and the like can be output from the speaker.
[0036]
In the present embodiment, the navigation device 14 includes a registration unit 27 for registering a registration point, a registration image storage unit 28 for storing a registration image corresponding to the registration point, and a display control unit 29 from the viewpoint of function. . Then, the display control means 29 performs a display process to set a guide screen on a display (not shown) of the display unit 35 and display the current position and the surrounding map on the guide screen. When the input unit 34 is operated by the operator and the destination is set, a route search process is performed, a route from the current position to the destination is searched, and the current position, the surrounding map, and the search are displayed on the guidance screen. Route is displayed. Therefore, the operator can drive the vehicle according to the route guidance.
[0037]
In the navigation device 14, when the vehicle approaches the registration point registered in the registration unit 27, or when the operator designates the registration point on the map with a cursor or the like, the display control unit 29 displays the registration image. Is displayed on the display unit 35. In this case, an image such as a digital image captured by the operator himself using a digital camera or a digital image downloaded from a web page on the Internet is registered as a registered image and stored in the registered image storage means 28 in advance. On the other hand, a location such as a shooting location is registered as a registration location. When the vehicle enters a predetermined distance range from the registration point, the registered image is displayed on the display unit 35 by the display control means 29. Moreover, as the vehicle approaches the registration point, the size of the registered image displayed on the display unit 35 changes greatly.
[0038]
Next, the operation of the navigation device 14 configured as described above will be described.
[0039]
FIG. 1 is a diagram showing an example of a display screen of a display unit in the first embodiment of the present invention, and FIG. 4 is a first diagram showing a method for registering registered images and registration points in the first embodiment of the present invention. FIG. 1 is a diagram showing the positional relationship between a registration point and a vehicle in the first embodiment of the present invention. FIG. 6 is a diagram showing the distance between the registration point and the vehicle in the first embodiment of the present invention. FIG. 7 is a diagram showing the relationship between the sizes of registered images, FIG. 7 is a second diagram showing a method for registering registered images and registration points in the first embodiment of the present invention, and FIG. 8 is the first embodiment of the present invention. FIG. 9 is a flowchart illustrating a process for displaying a registered image according to the first embodiment of the present invention.
[0040]
First, the operator, at home, at work, using a terminal device 53 that are used in school, other places, to access the image provides a web page 51 that has been opened on the Internet 52. Here, the terminal device 53 is, for example, a personal computer, a portable information terminal, a PDA (Personal DigiL Assistant), a mobile phone, a game machine, a video phone, a digital TV, or the like. Any device may be used as long as it has display means, a communication interface, etc., can be connected to the Internet, and can access the image providing web page 51. The terminal device 53 has a function of storing data in the external storage medium 55.
[0041]
The image providing web page 51 is a web page that is opened in a computer such as a server connected to the Internet 52 and is accessible from a terminal device via the Internet 52, and includes image data of various images and the image. Provides position coordinates (latitude, longitude, etc.). Here, the image is, for example, photographs or paintings of famous sites, shrines and temples, government agencies, tourist spots, amusement parks, high-rise buildings, parks, museums, airfields, stations, schools, factories, and the like. The image may be a moving image, but is preferably a still image with a small amount of image data. The position coordinates of the image are position coordinates of a point where the object of the photograph or painting is located or a representative point.
[0042]
Furthermore, the image may be a traffic sign indicating one-way street, temporary stop, railroad crossing, or the like. In this case, for example, since the size of the sign image increases as it approaches the pause position, the distance to the pause position can be intuitively grasped, and the vehicle travels safely in compliance with traffic rules. be able to.
[0043]
The person who operates the image providing web page 51 may be an individual, a commercial company, a public organization, a government agency, or any other person. In addition, the access to the image providing web page 51 may be free, paid, or permitted only to registered members, It may be permitted only to the user or any form.
[0044]
The image providing web page 51 preferably provides the image data of the image and the position coordinates of the image in association with the file number in the form as shown in FIG. 4, for example.
[0045]
Next, the operator downloads the image data of the desired image and the position coordinates of the image from the image providing web page 51 to the terminal device 53 and stores them in the external storage medium 55. In this case, the image data of the image and the position coordinates of the image are stored in association with the file number.
[0046]
Subsequently, the operator sets the external storage medium 55 which the position coordinates of the image data and the image of the associated image as the file number is stored in association with the file number to the navigation device 14. As a result, the image is stored as a registered image in the registered image storage unit 28, and a point corresponding to the position coordinate of the image is registered in the registration unit 27 as a registered point. Normally, since the amount of image data is an order of magnitude larger, it is desirable to cause the external storage medium 55 to function as the registered image storage means 28 instead of the data recording unit 16 or the ROM 33. In this case, only the file number corresponding to the position coordinates of the image is written in the data recording unit 16 or the ROM 33 functioning as the registration means 27, and when the image data of the image is necessary, it is based on the file number. The image data stored in the external storage medium 55 is read out.
[0047]
When the navigation device 14 can be connected to the Internet 52 directly by the communication unit 38 or via a mobile communication device such as a mobile phone or a PHS phone, the operator can use the terminal device 53. The navigation device 14 can be used to access the image providing web page 51 and the image data of the desired image and the position coordinates of the image can be downloaded to the navigation device 14. Again, the image data, since the data amount is incomparably greater, be stored in the external storage medium 55, i.e., it is desirable to work the external storage medium 55 as the registered image storage unit 28.
[0048]
Further, even when the terminal device 53 is used, the terminal device 53 and the navigation device 14 are connected so as to be communicable by wired communication such as a communication cable or wireless communication means such as infrared rays or radio waves. If it is, the image data of the image and the position coordinates of the image can be transferred from the terminal device 53 to the navigation device 14 without using the external storage medium 55.
[0049]
Next, when the operator causes the vehicle to travel, the navigation device 14 detects the current position of the vehicle and determines whether or not a registration point exists within a predetermined distance from the current position of the vehicle. And when the registration spot exists, the distance L from the current position of the vehicle to the registration spot is calculated. Then, the display control means 29 is displayed so that the size of the registered image changes according to the distance L.
[0050]
That is, as shown in FIG. 5, when the vehicle moves on the road 47 and the vehicle position 12 that is the current position of the vehicle enters a predetermined distance range 46 from the registration point 45, the registration point is displayed on the display unit 35. A registered image corresponding to 45 is displayed. Here, the predetermined distance range 46 is indicated by a circle drawn with the predetermined distance L as the radius around the registration point 45.
[0051]
In this case, the size of the registered image is displayed on the display screen 11 of the display unit 35 so that the size of the registered image changes greatly as the vehicle approaches the registration point 45. As shown in FIG. 1, a registered image 42 of an object such as a school located near the vehicle position 12 is displayed in a maximum size. In addition, the registered image 43 of an object such as a temple located slightly away from the vehicle position 12 is displayed in an intermediate size. Furthermore, a registered image 44 of an object such as a factory located at a position far away from the vehicle position 12 is displayed with a minimum size. The positions where the registered images 42, 43, and 44 are displayed on the display screen 11 are registration points corresponding to the positions.
[0052]
Here, the size of the registered images 42, 43, 44 changes stepwise, for example, in three steps as shown in FIG. 6 according to the distance L from the vehicle position 12 of the corresponding registered point. To do. The size of the registered image is determined as follows, for example.
Size S1: L ≦ L1
Size S2: L1 <L ≦ L2
Size S3: L2 <L ≦ L3
(L is the distance from the vehicle position 12 of the registration point, L3 is the radius of the predetermined distance range 46, L2 is a predetermined distance shorter than L3, and L1 is a predetermined distance shorter than L2)
When the size of the display screen 11 is 400 dots wide and 240 dots long, the size S1 is preferably 100 dots wide, the size S2 is 70 dots wide, and the size S3 is preferably about 40 dots wide. .
[0053]
Further, the size of the registered image may be changed in two steps instead of three steps, may be changed in four steps or more, or may be changed continuously instead of stepwise. Furthermore, the sizes S1, S2, and S3 of the registered image and the distances L1, L2, and L3 can be determined as appropriate.
[0054]
Thereby, the size of the registration images 42, 43, 44 increases as the vehicle position 12 approaches the registration point, and the size of the registration images 42, 43, 44 increases as the vehicle position 12 moves away from the registration point. It gets smaller.
[0055]
In the present embodiment, the image providing web page 51 established on the Internet 52 is accessed, and the image data of the desired image and the position coordinates of the image are downloaded and registered as a registered image and a registration point. As described above, the image data of the desired image and the position coordinates of the image can be obtained by other methods.
[0056]
The operator, as shown in Figure 7, using the own digital camera 56, and digitally photographed image of the object, may store the image data of the image in the external storage unit 55, A silver salt photograph or painting may be read using the scanner 57 and the image data may be stored in the external storage means 55. Here, the digital camera 56 may be a digital still camera or a digital video camera. The image may be a moving image, but is preferably a still image with a small amount of image data.
[0057]
In this case, the image may not be an image of the object, and the range that can be selected according to the preference of the operator is widened. For example, when the object is a friend's house or a relative's house, the object may be reminiscent like a face photograph of a friend or relative. In addition, if the object is a museum, it may be a painting preferred by the operator, if the object is a theme park, it may be a theme park of character.
[0058]
Note that, as shown in FIG. 7, only the image data of the image associated with the file number is stored in the external storage medium 55, and the position coordinates of the image are not stored. Then, after setting the external storage medium 55 in the navigation device 14, the operator registers the position coordinates of each image in the registration means 27 by operating the input unit 34. In this case, the numerical value of the position coordinate may be input using a keyboard or the like, or may be input by placing a cursor or pointer on a point on the map displayed on the display unit 35. Further, when the navigation device 14 has a function of searching for a point by inputting a telephone number or an address, the corresponding point is searched by inputting the telephone number or the address, and the point You may register a position coordinate as a position coordinate of an image.
[0059]
As a result, as shown in FIG. 7, the position data of the image associated with the file number is registered in the registration means 27. In addition to the position coordinates, a telephone number, an address, etc. may be registered. Also in this case, the position coordinates and the like of the registration point are written in the data recording unit 16 or the ROM 33 of the navigation device 14, but the image data has an extremely large amount of data. It is desirable to allow the external storage medium 55 to function as the registered image storage means 28 as it is.
[0060]
In this case, only the file number corresponding to the position coordinates of the image is written in the data recording unit 16 or the ROM 33 functioning as the registration means 27, and when the image data of the image is necessary, it is based on the file number. It is desirable to read out the image data stored in the external storage medium 55 as the registered image storage means 28.
[0061]
Further, when the navigation device 14 uses a DVD-ROM 58 storing map data, road data, etc., as shown in FIG. 8, the image data of the image and the position coordinates of the image are stored in the DVD-ROM 58. It can also be stored.
[0062]
In addition, as shown in FIG. 8, the DVD-ROM 58 may store only image data of an image associated with a file number, and may not store the position coordinates of the image. In this case, the DVD-ROM 58 functions as the registered image storage means 28. Then, after setting the external storage medium 55 in the navigation device 14, the operator registers the position coordinates of each image in the registration means 27 by operating the input unit 34.
[0063]
It should be noted that a person who manufactures and sells the DVD-ROM 58 creates image data and image position coordinates associated with a file number in advance and stores them in the DVD-ROM 58, for example, for a famous object. You may keep it. In this case, since the position coordinates are acquired from the DVD-ROM 58 and registered in the registration means 27, the operator does not have to register the position coordinates of the image by operating the input unit 34. Further, instead of the DVD-ROM 58, other forms of external storage media such as a CD-ROM and a magnetic disk can be used.
[0064]
In this embodiment, the position coordinates of the image, the corresponding file number, and the like are registered in the registration means 27. However, the image data of the image and the image data are stored in the external storage medium 55 or the DVD-ROM 58. If the position coordinates are stored in advance, it can be prevented from being registered again in the registration means 27. In this case, without writing the position coordinates of the image, the corresponding file number, or the like in the data recording unit 16 or the ROM 33, the navigation processing unit 17 automatically performs the external storage medium 55 or the like every predetermined period (for example, 1 second). The DVD-ROM 58 is accessed. When the position coordinates of the image are within a predetermined distance L from the vehicle position 12, the image is read from the external storage medium 55 and the DVD-ROM 58 and displayed on the display screen 11.
[0065]
Thus, in the present embodiment, as the vehicle position 12 approaches the registration point 45, the size of the registration images 42, 43, and 44 increases, and as the vehicle position 12 moves away from the registration point 45, the registration image. The display control means 29 displays on the display screen 11 so that the sizes of 42, 43, and 44 become smaller.
[0066]
Therefore, the operator can intuitively grasp the distance to the registration point 45 by looking at the display image of the display unit 35 at a glance. Therefore, it is possible to appropriately grasp information related to the registration point.
[0067]
Next, a flowchart will be described.
Step S1: The navigation device 14 detects the current position of the vehicle.
Step S2: It is determined whether or not there is a registered spot with an image within a predetermined distance from the current position of the vehicle. If the registered point exists, the process proceeds to step S3, and if the registered point does not exist, the process returns to step S1.
Step S3: Calculate a distance L from the current position of the vehicle to the registration point.
Step S4: Determine whether the distance L is equal to or less than L1. If it is less than or equal to L1, the process proceeds to step S5, and if not less than L1, the process proceeds to step S6.
Step S5: The registered image is displayed with the size S1.
Step S6: Determine whether the distance L is greater than L1 and less than or equal to L2. If greater than L1 and less than or equal to L2, the process proceeds to step S7, and if greater than L1 and not less than L2, that is, if greater than L2 and less than or equal to L3, the process proceeds to step S8.
Step S7: The registered image is displayed with the size S2.
Step S8: The registered image is displayed with the size S3.
[0068]
Next, a second embodiment of the present invention will be described. The description of the same structure and the same operation as those of the first embodiment will be omitted.
[0069]
FIG. 10 is a diagram showing an example of the display screen of the display unit in the second embodiment of the present invention, and FIG. 11 is the distance between the registration point and the vehicle and the size of the registered image in the second embodiment of the present invention. It is a figure which shows the relationship.
[0070]
In the present embodiment, the display control means 29 is a large object such as a mountain or an airfield, and when the object looks large even from a distant place, the display control means 29 from the vehicle position 12 of the corresponding registration point. Even if the distance L is long, the registered image is displayed in a large size. On the other hand, if the object is a small one such as a private house or a roadside jizo and looks small even from a nearby place, the registration image is displayed until the distance L from the vehicle position 12 of the corresponding registration point becomes short. Is not displayed.
[0071]
In this case, the size of the registered image is displayed on the display screen of the display unit 35 so as to greatly change as the vehicle approaches the registration point 45. As shown in FIG. 10, a registered image 42 of an object such as a school that is in a position close to the vehicle position 12 is displayed in the maximum size. In addition, the registered image 43 of an object such as a temple located slightly away from the vehicle position 12 is displayed in an intermediate size. However, the registration image 44-2 of a large object such as an airfield, for example, is displayed at the maximum size although it is located far from the vehicle position 12.
[0072]
Here, the size of the registration images 42, 43, and 44-2 is as shown in FIG. 11 according to the distance L from the vehicle position 12 of the corresponding registration point 45 and the size of the object. , Change step by step. In FIG. 11, the level corresponds to the size of the object, level 1 corresponds to a large object such as a mountain or an airport, and level 2 corresponds to a medium-sized object such as a school or a shrine or temple. Correspondingly, level 3 corresponds to a small object such as a private house or a roadside storehouse. L1 to L5 are predetermined distances, and L1 <L2 <L3 <L4 <L5.
[0073]
In the relationship shown in FIG. 11, in the case of a large object, a registered image is displayed at a stage where the distance L from the vehicle position 12 of the registration point 45 is considerably long L5, and the distance L is a relatively long L3. At a stage, the registered image is displayed in the maximum size. On the other hand, in the case of a small object, the registration image is not displayed at the stage where the distance L from the vehicle position 12 of the registration point is considerably long L5 or L4, and the distance L is at the stage of L3. Will be displayed.
[0074]
Note that the classification of the levels 1 to 3 can be changed as appropriate by the operator. The level level may be two levels or four or more levels. Furthermore, the level may be set and registered regardless of the size of the object. For example, if the object is important for the operator or is of interest to the operator, when the operator registers an image, the object is set to level 1 even if it is small. You may register as follows.
[0075]
When the image data of the registered image and the position coordinates of the registered spot 45 are provided by the image providing web page 51, information regarding the level of the object may be provided together. This eliminates the need for the operator to set the level of the object himself / herself, so that the operator does not feel bothersome.
[0076]
As described above, in the present embodiment, the display control unit 29 is a large object, and when the object looks large even from a distant place, the display control unit 29 determines from the vehicle position 12 of the corresponding registration point 45. If the registered image is displayed in a large size even if the distance L is long, and the object is a small object and looks small even from a nearby place, the distance from the vehicle position 12 of the corresponding registered point The registered image is not displayed until L is shortened.
[0077]
Therefore, the operator can grasp the display image of the display unit 35 with a perspective similar to that of an actual landscape.
[0078]
Next, a third embodiment of the present invention will be described. The description of the same structure and the same operation as those of the first and second embodiments will be omitted.
[0079]
FIG. 12 is a diagram showing an example of the display screen of the display unit in the third embodiment of the present invention.
[0080]
In the present embodiment, the display control unit 29 displays the display position of the registered image on the display screen 11 while shifting it from the corresponding registration point as necessary.
[0081]
When registration points of a plurality of objects are close to each other and registration images overlap, the display control unit 29 registers the object whose registration point is farther from the vehicle position 12 as shown in FIG. The image 43-2 is displayed while being shifted to a position away from the registration point. It should be noted that the operator can easily grasp the position of the registered spot by creating a balloon and instructing the registered spot.
[0082]
Further, when the display screen 11 is congested as in the case where a large number of registered images are displayed on the display screen 11, the display control means 29 determines that the registration point in the registration images that overlap is the vehicle. It is also possible not to display the registered image 43-2 of the object farther from the position 12.
[0083]
Furthermore, when the registered image overlaps the vehicle position 12 or overlaps the set route of the vehicle, the display control unit 29 can also display the registered image at a position shifted from the corresponding registered point.
[0084]
In addition, when the size of the registered image increases and the overlapping degree increases as the vehicle position 12 approaches the registration point, it is desirable that the distance to which the registered image is moved is correspondingly increased.
[0085]
Furthermore, the registered image may be displayed not on the map but on a sub-screen that is displayed independently of the map. In this case, route information such as intersections and roads displayed on the map is not covered by the registered image, so that the operator can accurately grasp the route information.
[0086]
The present invention is not limited to the above embodiments, it is possible to in various ways based on the gist of the present invention are not excluded from the scope of the present invention.
[0087]
For example, the present invention provides a registration unit for registering a computer as a registration point for navigation, a registration image storage unit for storing a registration image corresponding to the registration point, and the registration point and vehicle position. A navigation program that functions as display control means for displaying the registered image on the display screen so that the size of the image changes according to the distance.
[0088]
Furthermore, the present invention provides a registration means for registering a computer as a registration spot for navigation, a registration image storage means for storing a registration image corresponding to the registration spot, and the registration spot and vehicle position. it is intended to include the registered image computer readable recording medium recording a navigation program to function as a display control means for displaying on the display screen as the size of the image changes depending on the distance.
[0089]
【The invention's effect】
As described above in detail, according to the present invention, in the navigation device, a registration unit that registers a predetermined point as a registration point, a registration image storage unit that stores a registration image corresponding to the registration point, A level corresponding to the size of the object of the registered image; The size of the image according to the distance between the registration point and the vehicle position The change Let me Display control means for displaying the registered image on a display screen; , Have A navigation device, wherein the level is changed by an operator .
[0090]
In this case, the operator can intuitively grasp the distance to the registered point by just looking at the display image. Therefore, it is possible to appropriately grasp information related to the registration point.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of a display screen of a display unit according to a first embodiment of the present invention.
FIG. 2 is a conceptual diagram of the navigation device according to the first embodiment of the present invention.
FIG. 3 is a diagram showing functions of the navigation device according to the first embodiment of the present invention.
FIG. 4 is a first diagram illustrating a method for registering a registered image and a registration point according to the first embodiment of the present invention.
FIG. 5 is a diagram showing a positional relationship between a registration point and a vehicle in the first embodiment of the present invention.
FIG. 6 is a diagram showing the relationship between the distance between a registration point and a vehicle and the size of a registration image in the first embodiment of the present invention.
FIG. 7 is a second diagram illustrating a method for registering a registered image and a registration point according to the first embodiment of the present invention.
FIG. 8 is a third diagram illustrating a method for registering a registered image and a registration point according to the first embodiment of the present invention.
FIG. 9 is a flowchart illustrating processing for displaying a registered image according to the first embodiment of the present invention.
FIG. 10 is a diagram showing an example of a display screen of the display unit in the second embodiment of the present invention.
FIG. 11 is a diagram showing the relationship between the distance between a registration point and a vehicle and the size of a registration image in the second embodiment of the present invention.
FIG. 12 is a diagram showing an example of a display screen of the display unit in the third embodiment of the present invention.
[Explanation of symbols]
11 Display screen
12 Vehicle position
14 Navigation device
27 Registration means
28 Registered image storage means
29 Display control means
42, 43, 43-2, 44, 44-2 Registration image
45 registration points

Claims (7)

(A) registration means for registering a predetermined point as a registration point;
(B) registered image storage means for storing a registered image corresponding to the registered point;
(C) a display control means for level corresponding to the size and the according to the distance between the registration point and the vehicle position by changing the size of an image to display the registered image on the display screen of the object of the registered image ,
A navigation device comprising:
(D) The navigation device characterized in that the level is changed by an operator . (A) registration means for registering a predetermined point as a registration point in advance;
(B) registered image storage means for storing a registered image corresponding to the registered point;
(C) a display control means for level corresponding to the size and the according to the distance between the registration point and the vehicle position by changing the size of an image to display the registered image on the display screen of the object of the registered image ,
A navigation device comprising:
(D) The navigation device characterized in that the level is changed by an operator . (A) a step of registering a predetermined point in advance as a registered point;
(B) a registered image storage means for storing a registered image corresponding to the registration point;
(C) The display control means changes the size of the image according to the level corresponding to the size of the object of the registered image and the distance between the registered location and the vehicle position, and displays the registered image on the display screen. Step to
A navigation method comprising:
(D) The level is changed by the operator
A navigation method characterized by that. (A) computer for navigation,
(B) registration means for registering a predetermined point as a registration point in advance;
(C) registered image storage means for storing a registered image corresponding to the registered point; and
(D) Display control means for displaying the registered image on the display screen by changing the size of the image in accordance with the level corresponding to the size of the object of the registered image and the distance between the registered location and the vehicle position.
A navigation program that functions as
(E) The level is changed by the operator
A navigation program characterized by that. (A) registration means for registering a predetermined point as a registration point in advance;
(B) registered image storage means for storing a registered image corresponding to the registered point;
(C) display control means for displaying the registration image on a display screen according to a level set in the registration image and a distance between the registration point and the vehicle position;
A navigation device comprising:
(D) the level is changed by the operator;
(E) The display control means controls whether or not to display the registration image according to a level set in the registration image and a distance between the registration point and the vehicle position.
A navigation device characterized by that. (A) a step of registering a predetermined point in advance as a registered point;
(B) a registered image storage means for storing a registered image corresponding to the registration point;
(C) a step in which the display control means displays the registered image on a display screen according to a level set in the registered image and a distance between the registered location and the vehicle position;
A navigation method comprising:
(D) the level is changed by the operator;
(E) The display control means controls whether or not to display the registration image according to a level set in the registration image and a distance between the registration point and the vehicle position.
A navigation method characterized by that. (A) computer for navigation,
(B) registration means for registering a predetermined point as a registration point in advance;
(C) registered image storage means for storing a registered image corresponding to the registered point; and
(D) Display control means for displaying the registered image on a display screen in accordance with the level set in the registered image and the distance between the registered location and the vehicle position.
A navigation program that functions as
(E) the level is changed by the operator;
(F) The display control means controls whether or not to display the registered image according to a level set in the registered image and a distance between the registered location and the vehicle position.
A navigation program characterized by that.

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