JP2011107369A - Map information display device, map information display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a map information display device that effectively utilizes screen shots of a map. <P>SOLUTION: The map information display device includes: a map information storage part 11 storing map information being information on a map; a display part 23 for displaying map information; a screen shot storage part 13 storing screen shot map information which is obtained by screen shot of at least a part of map information displayed by the display part 23, and has position information being information on positions corresponding to screen shots; and a screen shot acquisition part 12 which acquires screen shot map information from map information displayed by the display part 23 and stores the screen shot map information into the screen shot storage part 13. The display part 23 displays also screen shot map information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention can acquire and accumulate screen shots while displaying a map.

  Conventionally, in a personal computer or the like, it has been possible to obtain a screen shot (screen capture) that is an image obtained by copying a part or all of an image displayed on a display device as it is. Therefore, it was possible to easily know what display was made in the past by acquiring the screen shot. Therefore, for example, when a map is displayed, a screen shot of the map can be obtained.

  In recent years, car navigation systems, mobile phones, PDAs (Personal Digital Assistants), and the like have been used as devices for displaying maps (see, for example, Patent Document 1).

JP 2009-210468 A

  However, when a screen shot of a map is acquired, it can be used as a map image, but there is a problem that there is no further usage. For example, if you take a screenshot of a map of a travel destination when you travel by car, go home, and see the map image of that screenshot, what region the map image belongs to and when There is a problem that it may not be easy to know whether it is.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a map information display device and the like that can acquire a screen shot of map information that can be effectively used later.

  In order to achieve the above object, a map information display device according to the present invention includes a map information storage unit that stores map information that is information about a map, a display unit that displays map information, and a map information displayed by the display unit. Screen shot map information from at least a part of the screen shot and storing the screen shot map information having the position information corresponding to the screen shot, and the map information being displayed on the display unit And a screen shot acquisition unit for storing the screen shot storage unit, and the display unit also displays the screen shot map information.

  With such a configuration, it is possible to accumulate screenshot map information having position information. As a result, the screen shot map information can be effectively used using the position information. For example, if the screen shot map information is obtained from large scale map information, it may not be easy to know which region it is. It becomes possible to distinguish immediately.

  The map information display device according to the present invention further includes a position classification unit that classifies the screenshot map information for each position indicated by the position information, and the display unit displays the screenshot map information classified by the position classification unit. May be.

  With such a configuration, the screen shot map information can be classified using the position information. As a result, the user can view the screen shot map information after the classification, and for example, can easily access the screen shot map information of a desired area, and the convenience for the user is improved.

  In the map information display device according to the present invention, the screen shot map information may be information having date information that is date information when the screen shot map information is acquired.

  With such a configuration, it is possible to accumulate screenshot map information having date information. As a result, the screen shot map information can be effectively used using the date / time information. For example, when this map information display device is a car navigation device and screen shot map information that is a screen shot of the map information of the destination is acquired, the date and time information indicating the acquisition date and time is included in the screen shot map information. By being included, it becomes possible to know when the screen shot map information is acquired. As a result, for example, the situation in which the screen shot map information is acquired can be easily determined.

  The map information display device according to the present invention further includes a date and time classification unit that classifies the screen shot map information for each date and time indicated by the date and time information, and the display unit displays the screen shot map information classified by the date and time classification unit. May be.

  With such a configuration, the screen shot map information can be classified using the date information. As a result, the user can see the screen shot map information after classification, for example, the user can easily access the screen shot map information acquired in a desired period, and the convenience of the user is improved. Is done.

  In the map information display device according to the present invention, the additional information receiving unit that receives input of additional information that is information corresponding to the screen shot map information, and the additional information received by the additional information receiving unit are associated with the screen shot map information. An additional information accumulating unit that accumulates in the screen shot storage unit, and the display unit displays the screen shot map information and the additional information corresponding to the screen shot map information so that they are in a front-and-back relationship. Good.

  With such a configuration, for example, it is possible to leave something like a memo for each screen shot map information. In addition, since the screen shot map information and the additional information are displayed so as to have a front-back relationship, the screen shot map information and the additional information can be handled in the same manner as when the information is written on the back side of the paper map. Become. For this reason, it is possible to intuitively understand that the screen shot map information and the additional information that are in the relationship of the front and back are mutually related.

  The map information display device according to the present invention further includes a screen shot receiving unit that receives the screen shot map information and additional information corresponding to the screen shot map information, and the screen information receiving unit receives the additional information storage unit. The screen shot map information and the additional information may be associated with each other and accumulated in the screen shot storage unit.

  With such a configuration, the screen shot map information and the additional information associated with the additional information from the beginning can be received from the outside and used. Therefore, for example, the screen shot map information and additional information received from the outside can be used like a guide book.

  Moreover, in the map information display device according to the present invention, when the display unit displays the map information and the screen shot map information, the position receiving unit that receives designation of the position in the map information and the position in the screen shot map information And a route information generating unit that generates route information that is information about a route between the position in the map information received by the position receiving unit and the position in the screen shot map information, and the display unit generates the route information The route information generated by the unit may also be displayed.

  With such a configuration, for example, it is possible to know route information from a position on the current map information to a position on the screen shot map information that is a past destination. In this way, the screen shot map information can be used effectively.

  Further, in the map information display device according to the present invention, when the display unit displays two pieces of screen shot map information, a position receiving unit that accepts designation of a position in each of the two pieces of screen shot map information, A route information generation unit that generates route information that is information about a route between positions in each of the two screen shot map information received by the reception unit, and the display unit is generated by the route information generation unit Route information may also be displayed.

  With such a configuration, for example, it becomes possible to know route information between two positions on the screen shot map information, which is a past destination. In this way, the screen shot map information can be used effectively.

In the map information display device according to the present invention, the route information may include a distance between two positions.
With such a configuration, the distance between the two positions can be known from the route information.

In the map information display device according to the present invention, the route information may include a travel time between two positions.
With such a configuration, it is possible to know the travel time between two positions based on the route information.

In the map information display device according to the present invention, the route information may include a route image that is an image showing a route between two positions.
With such a configuration, the route of movement between two positions can be known from the route information.

  According to the map information display device and the like according to the present invention, it is possible to acquire and store the screen shot map information including the position information and the like, and to effectively use the screen shot map information.

The block diagram which shows the structure of the map information display apparatus by Embodiment 1 of this invention. The flowchart which shows operation | movement of the map information display apparatus by the embodiment The flowchart which shows operation | movement of the map information display apparatus by the embodiment The flowchart which shows operation | movement of the map information display apparatus by the embodiment The flowchart which shows operation | movement of the map information display apparatus by the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the screen shot map information in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the position classification | category information in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the additional information in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment Schematic diagram showing an example of the appearance of the computer system in the embodiment The figure which shows an example of a structure of the computer system in the embodiment

  Hereinafter, a map information display device according to the present invention will be described using embodiments. In the following embodiments, components and steps denoted by the same reference numerals are the same or equivalent, and repetitive description may be omitted.

(Embodiment 1)
A map information display apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings. The map information display device according to the present embodiment acquires and accumulates screen shot map information including position information and the like while displaying map information.

  FIG. 1 is a block diagram showing a configuration of a map information display device 1 according to this embodiment. The map information display device 1 according to the present embodiment includes a map information storage unit 11, a screen shot acquisition unit 12, a screen shot storage unit 13, a position classification unit 14, a date / time classification unit 15, and an additional information reception unit 16. An additional information storage unit 17, a screen shot reception unit 18, a position reception unit 19, a route information generation unit 20, a current position acquisition unit 21, a reception unit 22, and a display unit 23. This Embodiment demonstrates the case where the map information display apparatus 1 is a car navigation system.

  The map information storage unit 11 stores map information that is information about the map. The map information may be map image information, for example. This image information may be raster data (bitmap data) or vector data, for example. When the image information is raster data, the map information may include image information corresponding to a plurality of scales. For example, map information may include large-scale image information, medium-scale image information, and small-scale image information for the same region. Moreover, map information shows the map divided | segmented into the tile shape, The map of various area | regions can be displayed now by combining suitably. Here, the “map” may be a topographic map, a topographic map, a geological map, a land use map, a house map, a route map, a road map, a guide map, or the like. In the present embodiment, as described above, the map information is a road map in order to explain the case where the map information display device 1 is a car navigation system. The map information can be used for route search. In other words, the map information can know the position of the road and the attribute of the road (for example, the speed limit, whether it is a main road or a side road, etc.). The map information may be in the KIWI format used in the car navigation system. In addition, the “map” may be an aerial photograph or satellite photograph in which the topography, roads, etc. can be grasped, or those in which symbols or characters are entered. In the map information, it is assumed that the correspondence between each point on the map and the coordinates (position) can be known. The coordinates may be coordinates with an origin at a certain reference point (the coordinates may be distances, for example), may be latitude / longitude, or may be information that can identify other positions. . The coordinates themselves may be included in the map information. In addition, the map information may include character information related to place names and topography such as mountains and rivers. In this map information, it is assumed that a specific direction such as north is set. The setting of this direction may be made as a result. For example, when latitude and longitude are set in the map information, it can be seen that the direction in which only the east longitude value increases is the east direction, and the direction in which only the north latitude value increases is the north direction. The map information is known as a two-dimensional online map, an electronic map, etc., and detailed description thereof is omitted.

  The process in which map information is memorize | stored in the map information storage part 11 is not ask | required. For example, map information may be stored in the map information storage unit 11 via a recording medium, and map information transmitted via a communication line or the like is stored in the map information storage unit 11. May be. Further, the storage in the map information storage unit 11 may be temporary storage in a RAM or the like, or may be long-term storage. The map information storage unit 11 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The screen shot acquisition unit 12 acquires screen shot map information from the map information being displayed by the display unit 23 described later. And the screen shot acquisition part 12 accumulate | stores the acquired screen shot map information in the screen shot memory | storage part 13 mentioned later. The screen shot map information is information on at least a part of the screen information displayed by the display unit 23. That is, the screen shot map information may be the entire map image being displayed by the display unit 23 or may be a partial image. In the latter case, the user may be able to select an image range to be included in the screen shot map information, or the image range may be determined in advance. The screen shot image may be, for example, an image such as JPEG or PNG, and the data format is not limited. The method for acquiring the screen shot is known as described above, and the description thereof is omitted. The screen shot map information is information having position information, date / time information, and a place name. The position information is position information corresponding to the screen shot. The position information may be information on the position (coordinates) of any point on the map of the screen shot map information, or to acquire the position (coordinates) of an arbitrary point on the map of the screen shot map information. It may be information used for. In the former case, the position information indicates, for example, a position (coordinates) corresponding to a predetermined location (for example, center, upper left, upper right, lower left, lower right, etc.) of the map image in the screen shot map information. May be. Since the map information includes position information, the screen shot acquisition unit 12 can acquire the position information by using the position information included in the map information. In the latter case, that is, when the position information is information capable of acquiring the position of an arbitrary point in the map of the screen shot map information, the position information corresponds to, for example, a plurality of pixels in the screen shot map information. Information indicating the position (coordinates) corresponding to a predetermined location in the screen shot map information, scale information of the screen shot map information, and the screen shot Information indicating the direction of the map information (for example, information of the direction indicating the upper side of the screen shot map information (for example, an azimuth angle of 0 degrees north, 90 degrees east, 180 degrees south, 270 degrees west, The orientation indicating the angle of deviation in the east-west direction relative to the north and south, such as 28 degrees north east, etc. Away from the upward-shot map information repeatedly clockwise may be an angle indicating or in the non-orientation of the north, but are not limited as long as it shows the azimuth) and may contain. When the map information is displayed, it is not necessary to include the direction information in the position information if north is up (north in the screen shot map information). Because it becomes.) For example, when the position information indicates a position corresponding to the center in the screen shot map information, the screen shot acquisition unit 12 specifies the point of the map information corresponding to the center of the screen shot map information, The position information can be acquired by acquiring the position (coordinates) corresponding to the identified point from the map information. The same applies when the position information has a plurality of positions (coordinates). Further, the screen shot acquisition unit 12 can acquire information indicating the scale by referring to the scale of the map information being displayed. Moreover, the screen shot acquisition part 12 can acquire the direction information by specifying the north direction in the displayed map information. The date information is date information when the screen shot map information is acquired. The date / time information may be, for example, information indicating both the date and time, information indicating only the date, or information indicating only the time. Moreover, the screen shot acquisition part 12 can acquire date information by acquiring the date and time at that time from a calendar part or a clock part (not shown). Moreover, since the place name is also included in the map information, the screen shot acquiring unit 12 can acquire the place name of the area corresponding to the screen shot.

  The screen shot storage unit 13 stores screen shot map information. This screen shot map information is stored by the screen shot acquisition unit 12 or the additional information storage unit 17 described later. The screen shot storage unit 13 also stores additional information. This additional information is stored by the additional information storage unit 17 described later. As will be described later, since the additional information is information corresponding to the screen shot map information, the additional information and the screen shot map information are stored in association with each other. As long as the other information corresponding to the information can be specified from the one information, the association method is not limited. For example, information including screen shot map information and additional information as a set may be stored in the screen shot storage unit 13, and information for linking both pieces of information may be stored in the screen shot storage unit 13. Moreover, both information does not need to be indirectly matched. For example, the third information may be associated with the screen shot map information, and the additional information may be associated with the third information.

  The storage in the screen shot storage unit 13 may be temporary storage in a RAM or the like, or may be long-term storage. The screen shot storage unit 13 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The position classification unit 14 classifies the screen shot map information for each position indicated by the position information. The classification for each position may be sorting the screen shot map information using the position information, or may classify the screen shot map information for each area using the position information. The area may be, for example, a position delimited by a radius from a specific position (for example, a current position or a position designated by the user). For example, an area from a specific position to a radius of 10 kilometers, an area having a radius of more than 10 kilometers to 30 kilometers, an area having a radius of more than 30 kilometers to 100 kilometers, and an area having a radius of more than 100 kilometers The screen shot map information may be classified. Further, the area may be an area such as an administrative district. In that case, the position classification unit 14 stores information on the area of the administrative district (for example, the name of the administrative district and the information indicating the area of the administrative district (for example, information indicating the outline of the administrative district). )), And using that information, each screenshot map information is classified into administrative districts according to which administrative district contains the location information included in the screenshot map information. May be. In this case, for example, the first screen shot map information is classified as A city, and the second screen shot map information is classified as B town. The position classification unit 14 may store the screen shot map information after the classification in, for example, the screen shot storage unit 13 or may store it in another recording medium (not shown). The position classification unit 14 may be, for example, information indicating the classification in the screen shot map information (for example, “A city”, “B city”, etc., “up to a radius of 10 km”, “radius of 10 to 30 km”, etc. Classification may be performed by adding screen shot map information in different storage areas for each classification.

  The date / time classification unit 15 classifies the screen shot map information for each date / time indicated by the date / time information. Sorting by date and time may be sorting screen shot map information using date and time information, or classifying screen shot map information by time using date and time information. The period may be, for example, a period divided by a time from a specific time point (for example, a classification time point or a time point specified by the user). For example, screenshot map information for a period from a specific point in time to a week ago, a period exceeding 1 week to a period of 2 weeks, a period exceeding 2 weeks to a period of 4 weeks, and a period exceeding 4 weeks. It may be classified. The classification may be a monthly classification, a year-specific classification, a day-of-week classification, or another classification. The date / time classification unit 15 may store the screen shot map information of the classification word in, for example, the screen shot storage unit 13 or may store it in another recording medium (not shown). The date / time classification unit 15 classifies the screen shot map information by adding information indicating the classification (for example, “up to one week ago”, “one week before to two weeks ago”, etc.). Classification may be performed by storing screenshot map information in different storage areas for each classification.

  The additional information receiving unit 16 receives input of additional information that is information corresponding to the screen shot map information. This additional information may be, for example, information on the explanation about the screen shot map information, or information on the explanation about the store, landmark, or other object included in the map image of the screen shot map information. Any information regarding the screen shot map information may be used. Further, the additional information may include text information or image information. The image may be a still image or a moving image.

  The additional information receiving unit 16 may receive additional information input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), for example, and receive additional information transmitted via a wired or wireless communication line. Alternatively, additional information read from a predetermined recording medium (for example, an optical disk, a magnetic disk, a semiconductor memory, etc.) may be received. Note that the additional information reception unit 16 may or may not include a device (for example, a modem or a network card) for reception. Further, the additional information receiving unit 16 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The additional information storage unit 17 stores the additional information received by the additional information receiving unit 16 in the screen shot storage unit 13 in association with the screen shot map information. For example, the additional information input on the reverse side of a certain screen shot map information is stored in association with the screen shot map information. Further, when the screen shot receiving unit 18 described later receives the screen shot map information and the additional information corresponding to the screen shot map information, the additional information accumulating unit 17 receives the screen shot receiving unit 18. The screen shot map information and the additional information are associated with each other and stored in the screen shot storage unit 13.

  The screen shot reception unit 18 receives screen shot map information and additional information corresponding to the screen shot map information. The screen shot receiving unit 18 may receive, for example, information transmitted via a wired or wireless communication line, and is read from a predetermined recording medium (for example, an optical disk, a magnetic disk, a semiconductor memory, or the like). Information may be accepted. Note that the screen shot receiving unit 18 may or may not include a device for receiving (for example, a modem or a network card). Further, the screen shot receiving unit 18 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The position accepting unit 19 accepts designation of a position in the displayed map information and screen shot map information. Or the position reception part 19 receives designation | designated of each position in the two screen shot map information currently displayed. That is, the position receiving unit 19 may receive the designation of the position in the map information and the position in the screen shot map information when the display unit 23 displays the map information and the screen shot map information. Further, when the display unit 23 displays two pieces of screen shot map information, the position receiving unit 19 may receive designation of a position in each of the two pieces of screen shot map information. The reception of the position is not limited as long as the position can be specified in the map information or the screen shot map information. For example, on a touch panel or the like on which map information or the like is displayed, the user may specify a position by pressing (tapping) a desired position with a finger or the like. The position may be specified by inputting (for example, when 1, 2, 3,... Is set in the vertical direction and A, B, C,. The position can be specified by inputting “, etc.”), and the position may be specified by other methods. Note that, when the designation of two positions is accepted, the position accepting unit 19 may accept one as the position of the start point and accept the other as the position of the end point, or not.

  The position receiving unit 19 may receive, for example, a position specification input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), and receives the position specification transmitted via a wired or wireless communication line. May be. The position receiving unit 19 may or may not include a device (for example, a touch panel) for receiving. The position receiving unit 19 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The route information generating unit 20 includes two positions (the position in the map information and the position in the screen shot map information, or the position in each of the two pieces of screen shot map information) in the map information received by the position receiving unit 19. Route information that is information about the route between is generated. Here, the route information may be, for example, information including a distance between two positions, information including a travel time between two positions, or information of two positions. It may be information including a route image that is an image showing a route between. When the start point and the end point are set at the two positions received by the position receiving unit 19, it is assumed that this route image is an image showing the route from the start point to the end point. This route image information may be, for example, information indicating the positions of a number of points constituting the route from the start point to the end point. Then, when displaying the route image, an image in which a number of points from the start point to the end point are connected by lines may be displayed. Note that the screen shot map information includes position information as described above. Therefore, by using the position information, the route information generating unit 20 can acquire coordinates (for example, latitude / longitude) corresponding to the position in the screen shot map information received by the position receiving unit 19. When the position information includes only information indicating one or more positions (coordinates), the route information generation unit 20 is the position information closest to the position in the screen shot map information received by the position reception unit 19. The route information may be generated using the coordinates indicated by as the coordinates corresponding to the position received by the position receiving unit 19. When the position information includes information indicating a plurality of positions (coordinates), the route information generating unit 20 acquires coordinates corresponding to the positions in the screen shot map information received by the position receiving unit 19. The route information may be generated using the coordinates. Specifically, when at least two different positions (coordinates) are known in the screen shot map information, the screen shot map information can be superimposed on the corresponding position in the map information. Therefore, coordinates corresponding to an arbitrary point in the screen shot map information can be acquired using the map information. In the screen shot map information, when at least two different positions (coordinates) are known, the position information is substantially the same as when the position information includes scale information and azimuth information. For example, if the coordinates of two different points are known, the length in the screen shot map information between the two points and the actually measured value (actual distance) between the two points can be known. Therefore, the scale of the screen shot map information can be known using them. Further, by using the map information, the azimuth angle of the line segment connecting the two different points can be known. As a result, as described later, the position information is the same as the case where the position information includes scale information and orientation information, and coordinates corresponding to an arbitrary position in the map of the screen shot map information can be acquired. On the other hand, when the position information includes information other than the position, for example, scale information or direction information, the route information generation unit 20 uses the information to receive the position reception unit 19. The coordinates corresponding to the position in the screen shot map information may be acquired, and the route information may be generated using the coordinates. Specifically, if at least one point position (coordinates), north direction, and scale are known in the map of the screen shot map information, the route information generation unit 20 The position (coordinates) at can be known. For example, when an orthogonal coordinate system having north as the Y axis and east as the X axis is set on the screen shot map information, if the north direction is known, the angle for setting the orthogonal coordinate system can be known. Further, if the scale is known, the unit of the scale of the orthogonal coordinate system can be known. If at least one coordinate is known, the origin of the orthogonal coordinate system can be determined as a result. In this way, an orthogonal coordinate system can be set for the screen shot map information, and the coordinates of the designated position can be acquired using the coordinate system. Therefore, the route information generation unit 20 can acquire coordinates (for example, latitude / longitude) corresponding to the position received by the position receiving unit 19 in the screen shot map information. In addition, the route information generation unit 20 acquires coordinates (for example, latitude / longitude) corresponding to the position in the map information received by the position reception unit 19 by using the position (coordinate) information included in the map information. can do.

  Here, a method for generating the route information by the route information generation unit 20 will be briefly described. When the position receiving unit 19 receives designation of two positions, the route information generating unit 20 acquires coordinates (for example, latitude / longitude) corresponding to the two specified positions, and the acquired A route search between two coordinates is performed. Specifically, the route information generation unit 20 sets an area including the two positions in the map information. The area may be a rectangular area including the two positions, for example. The rectangular region may be a rectangle set so that the two positions become diagonal vertices, or may be a rectangle set larger than that. Then, a plurality of routes connecting the two positions are found within the area, and an optimum route is selected from the routes. In the route search, for example, the Dijkstra method may be used, the Bellman-Ford method may be used, the Warsal-Floyd method may be used, or other algorithms may be used. Once the optimal route can be determined in this way, the distance between the two positions can be calculated by calculating the distance along that route. For example, the distance between two positions can be calculated by obtaining the length in the map information and multiplying that length by the inverse of the scale of the map information. Moreover, the movement time between the two positions can be calculated by dividing the distance between the two positions by the moving speed according to the moving means (for example, car, walking, etc.). In the calculation of the travel time, if the travel speed differs depending on the road, the travel time is calculated for each road, and the travel time corresponding to all routes is calculated by adding the travel time over all routes. May be calculated. The generation of the route image and the generation of the travel time and the distance are already known and will not be described in detail. For example, in an online map, when the latitude / longitude of the start point and the latitude / longitude of the end point are input, a route from the start point to the end point is displayed, and a distance and a travel time are displayed (for example, “ http://maps.google.co.jp/maps etc.)).

  The current position acquisition unit 21 acquires the current position of the map information display device 1. The acquisition of the current position may be performed using, for example, a GPS (Global Positioning System) or an autonomous navigation device such as a gyro, and both may be used to compensate each other's drawbacks. May be.

  The accepting unit 22 accepts various user instructions for the map information display device 1 such as a display instruction and a screen shot acquisition instruction. For example, the receiving unit 22 may receive input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), may receive input transmitted via a wired or wireless communication line, and perform predetermined recording. Information read from a medium (for example, an optical disk, a magnetic disk, a semiconductor memory, etc.) may be received. The reception unit 22 may or may not include a device (for example, a modem or a network card) for reception. The receiving unit 22 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The display unit 23 displays the map information stored in the map information storage unit 11. At the time of the display, the display unit 23 reads only the map information to be displayed from the map information storage unit 11 and displays it. Displaying map information means displaying a map image in the map information. The map image may display a place name, an orientation figure indicating north, a scale display indicating scale, and the like. For example, when the vehicle equipped with the map information display device 1 is moving, the display unit 23 displays a new map every time the current position acquired by the current position acquisition unit 21 changes. May be read out and displayed. In that case, a mark indicating the position of the car may be displayed on the map. The display unit 23 also displays the screen shot map information stored in the screen shot storage unit 13. Displaying the screen shot map information may be displaying a map image in the screen shot map information, and displaying one or more pieces of position information, date / time information, and place name along with the map image. It may be to do. The screen shot map information may be classified by the position classification unit 14. When displaying the classified screenshot map information, the display unit 23 displays the screenshot map information for each classification. For example, the display unit 23 may display the screen shot map information corresponding to one or more classifications separately from other screen shot map information. The screen shot map information may be classified by the date / time classification unit 15. The display unit 23 may also display additional information stored in the screen shot storage unit 13. In the display, the screen shot map information and the additional information corresponding to each other are displayed so as to be in a front-back relationship. For example, when the screen shot map information is displayed, if an instruction to display additional information corresponding to the screen shot map information is received, the display unit 23 turns over the screen shot map information. Such a moving image may be displayed, and then the additional information may be displayed. The same may be applied when switching from the additional information to the display of the screen shot map information. Note that it is a known transition known as the “inverted” switching effect that switches the display so that the screen shot map information and the additional information have a front-back relationship. In addition, when the route information generation unit 20 generates route information, the display unit 23 also displays the route information. The display unit 23 may perform other displays such as a screen keyboard for inputting additional information.

  The display unit 23 may or may not include a display device (for example, a CRT or a liquid crystal display) that performs such display. Further, the display of the map information or the like may be performed on a device different from the map information display device 1. In that case, the display unit 23 may transmit the map information and the like to the outside of the map information display device 1. The display unit 23 may be realized by hardware, or may be realized by software such as a driver that drives a display device.

  Further, the map information storage unit 11 and the screen shot storage unit 13 may be realized by the same recording medium or may be realized by separate recording media. In the former case, the area that stores the map information is the map information storage unit 11, and the area that stores the screen shot map information and the like is the screen shot storage unit 13.

Next, operation | movement of the map information display apparatus 1 by this Embodiment is demonstrated using the flowchart of FIG.
(Step S101) The current position acquisition unit 21 determines whether a new current position has been acquired. If a new current position is acquired, the process proceeds to step S102. If not, the process proceeds to step S103. For example, when the current position acquisition unit 21 determines that a new current position has been acquired, the current position is temporarily stored in a recording medium (not shown), and the latest current position is temporarily stored. If the current position is different from the current position, it may be determined that a new current position has been acquired, and the new current position may be overwritten and stored in a recording medium (not shown).

  (Step S102) The display unit 23 reads the map information corresponding to the new current position acquired by the current position acquisition unit 21 from the map information storage unit 11, and displays the map information. Then, the process returns to step S101. The display unit 23 may display a mark or the like indicating the current position in the map information to be displayed. In addition, when the route is being guided, the display unit 23 may display a guide such as “turn right at the next intersection”. Further, in the case of a car navigation device that outputs the guide sound, the map information display device 1 may include a guide sound output unit (not shown) that generates sound of the guide and outputs the sound to a speaker. .

  (Step S103) The receiving unit 22 determines whether an instruction to acquire a screen shot has been received. If an instruction to acquire a screen shot is received, the process proceeds to step S104. If not, the process proceeds to step S106. In addition, when acquiring a screen shot of a part of the displayed map information, an instruction for specifying the acquisition range may be received together, or may not be so. In the latter case, the acquisition range may be determined in advance (for example, it is determined to acquire a screen shot near the center of the screen).

  (Step S104) The screen shot acquisition unit 12 acquires all or part of the screen shot of the map information being displayed by the display unit 23 from the map information. Further, the position information corresponding to the screen shot and the place name are acquired from the map information. In addition, date and time information at that time is acquired from a calendar unit and a clock unit (not shown).

  (Step S <b> 105) The screen shot acquisition unit 12 accumulates the screen shot map information including the acquired screen shot and position information in the screen shot storage unit 13. Then, the process returns to step S101.

  (Step S106) The reception unit 22 determines whether an instruction to display the screen shot map information has been received. If an instruction to display the screen shot map information is received, the process proceeds to step S107. If not, the process proceeds to step S108.

  (Step S107) The display unit 23 and the like perform processing such as display of screen shot map information. Details of this processing will be described later with reference to the flowchart of FIG. Then, the process returns to step S101.

  (Step S108) The screen shot reception unit 18 determines whether screen shot map information and additional information have been received. And when both are received, it progresses to step S109, and when that is not right, it returns to step S101.

(Step S109) The additional information storage unit 17 stores the screen shot map information received by the screen shot receiving unit 18 in association with the additional information in the screen shot storage unit 13. Then, the process returns to step S101.
In the flowchart of FIG. 2, the process is terminated by powering off or a process termination interrupt.

FIG. 3 is a flowchart showing details of the processing for displaying the screen shot map information (step S107) in the flowchart of FIG.
(Step S201) The accepting unit 22 accepts any of the fact that classification is unnecessary, the classification using position information, and the classification using date and time information. If the classification is not necessary, the process proceeds to step S205. If the classification is performed, the process proceeds to step S202.

  (Step S202) The accepting unit 22 proceeds to step S203 when accepting selection of a classification using position information, and proceeds to step S204 when accepting selection of a classification using date and time information.

  (Step S203) The position classification unit 14 classifies the screen shot map information stored in the screen shot storage unit 13 using the position information included in the screen shot map information. Then, the screen shot map information after classification is stored in the screen shot storage unit 13.

  (Step S204) The date / time classification unit 15 classifies the screen shot map information stored in the screen shot storage unit 13 using the date / time information included in the screen shot map information. Then, the screen shot map information after classification is stored in the screen shot storage unit 13.

  (Step S205) The display unit 23 reads and displays one piece of screen shot map information stored in the screen shot storage unit 13. In addition, when progressing to step S205 from step S201, the display part 23 displays the screen shot map information which is not classified. When the process proceeds from step S203 to step S205, the display unit 23 displays the screen shot map information after the classification using the position information. When the process proceeds from step S204 to step S205, the display unit 23 displays the screen shot map information after the classification using the date / time information.

  (Step S206) The receiving unit 22 determines whether an instruction to change the currently displayed screen shot map information to another one has been received. If the instruction is accepted, the process proceeds to step S207; otherwise, the process proceeds to step S208.

  (Step S207) The display unit 23 reads out and displays screen shot map information different from the currently displayed screen shot map information from the screen shot storage unit 13. In step S206, when the change content is designated (for example, when an instruction to read and display from the screen shot storage unit 13 at the next date and time is received), display according to the instruction is performed. Shall be. Then, the process returns to step S206.

  (Step S208) The accepting unit 22 determines whether or not an input for selecting the screen shot map information being displayed has been accepted. If an input for selecting the screen shot map information is received, the process proceeds to step S209. If not, the process proceeds to step S210. This selection is performed in order to select the screen shot map information used when generating the route information.

  (Step S209) The display unit 23 specifies the screen shot map information being displayed as being selected. Then, the process returns to step S206. This specification may be, for example, accumulating information for identifying the screen shot map information being displayed in a recording medium (not shown) or having been selected in association with the screen shot map information being displayed. May be set in the screen shot storage unit 13.

  (Step S210) The receiving unit 22 determines whether an instruction to display additional information has been received. If an instruction to display additional information is received, the process proceeds to step S211. If not, the process proceeds to step S212.

  (Step S211) The display unit 23 and the like perform processing for displaying additional information. Details of this processing will be described later with reference to the flowchart of FIG. Then, the process returns to step S206.

  (Step S212) The receiving unit 22 determines whether an instruction to generate route information has been received. If an instruction to generate route information is accepted, the process proceeds to step S213, and if not, the process proceeds to step S214.

  (Step S213) The route information generation unit 20 or the like performs processing for generating and displaying route information. Details of this processing will be described later with reference to the flowchart of FIG. Then, the process returns to step S206.

  (Step S214) The receiving unit 22 determines whether an instruction to end the display of the screen shot map information has been received. If the end instruction is accepted, the process proceeds to step S215. If not, the process returns to step S206.

  (Step S215) The display unit 23 ends the display of the screen shot map information and returns to the display of only the map information. And it returns to the flowchart of FIG.

FIG. 4 is a flowchart showing details of the additional information display process (step S211) in the flowchart of FIG.
(Step S301) The display unit 23 displays a moving image in which the currently displayed screen shot map information is turned over, and then reads additional information corresponding to the currently displayed screen shot map information from the screen shot storage unit 13 and displays it. When there is no additional information, blank additional information is displayed. Further, the moving image that flips the screen shot map information may be stored in advance on a recording medium (not shown), or may be generated from the screen shot map information being displayed.

  (Step S302) The additional information receiving unit 16 determines whether or not input of additional information has been received. If input of additional information is accepted, the process proceeds to step S303, and if not, the process proceeds to step S305.

  (Step S303) The additional information accumulating unit 17 accumulates the additional information received by the additional information receiving unit 16 in association with the screen shot map information displayed before step S301.

  (Step S304) The display unit 23 displays additional information including newly accumulated information. Then, the process returns to step S302.

  (Step S305) The receiving unit 22 determines whether an instruction to end the display of the additional information has been received. If the end instruction is accepted, the process proceeds to step S306; otherwise, the process returns to step S302.

  (Step S306) The display unit 23 displays a moving image that turns over the additional information being displayed, and then reads and displays the screen shot map information corresponding to the additional information being displayed from the screen shot storage unit 13. And it returns to the flowchart of FIG. Note that the moving image that turns over the additional information may be stored in advance on a recording medium (not shown), or may be generated from the additional information being displayed.

FIG. 5 is a flowchart showing details of the route information display processing (step S213) in the flowchart of FIG.
(Step S401) The display unit 23 displays the screen shot map information specified to be selected in step S209. It is assumed that map information is displayed on the back side of the screen shot map information. Further, the screen shot map information displayed before the screen shot map information is displayed, or information for identifying the screen shot map information may be temporarily stored in a recording medium (not shown). . Further, at the time of this display, the user may appropriately move the displayed screen shot map information. For example, there is a case where it is desired to designate a position on the map on the back side of the screen shot map information.

  (Step S402) The position receiving unit 19 determines whether two positions for generating route information have been received. If accepted, the process proceeds to step S403. If not, the process of step S402 is repeated until accepted. If the position information is not received even after a predetermined time has elapsed since the screen shot map information was displayed, the process may return to step S206 as time-out. The two positions received here are the positions in the two pieces of screen shot map information, or the positions in the screen shot map information and the positions in the map information. The two received positions are converted into coordinates corresponding to the positions, respectively.

  (Step S403) The route information generation unit 20 generates route information between the two received positions. The generated route information may be temporarily stored on a recording medium (not shown).

  (Step S404) The display unit 23 displays the route information generated by the route information generation unit 20.

  (Step S405) The receiving unit 22 determines whether an instruction to end the display of route information has been received. If the end instruction is accepted, the process proceeds to step S406. If not, the process of step S405 is repeated until the end instruction is accepted. Note that if a termination instruction is not accepted even after a predetermined time has elapsed since the display of the route information, it may be determined that a timeout has occurred and the process may proceed to step S406.

  (Step S406) The display unit 23 displays the screen shot map information that was displayed before the process of displaying the route information was started. For example, when the screen that was displayed before the process of displaying the route information is temporarily stored in the recording medium, it may be read and displayed. Further, for example, when information for identifying the screen shot map information displayed before the processing for displaying the route information is temporarily stored in the recording medium, the screen identified by the information is displayed. The shot map information may be read and displayed. And it returns to the flowchart of FIG.

  Next, operation | movement of the map information display apparatus 1 by this Embodiment is demonstrated using a specific example. In this specific example, as described above, the map information display device 1 is assumed to be a car navigation device mounted on a car. It is assumed that the user operates the map information display device 1 while traveling in a car. Then, the current position acquisition unit 21 acquires the latest current position in accordance with the driving of the car (step S101), and the display unit 23 updates and displays the display target map information accordingly (step S102). . FIG. 6 shows an example of the map information displayed as described above. The upward triangular mark slightly below the center indicates the current position of the car. This map is displayed on the touch panel.

  It is assumed that the user presses the “screen shot shooting” button with a finger while the display of FIG. 6 is being performed. Then, the accepting unit 22 accepts that the screen shot map information is to be acquired, and passes that fact to the screen shot acquiring unit 12 (step S103). The screen shot acquisition unit 12 acquires a screen shot (P015.jpg) of the map image being displayed, and the position information “(X15, Y15), θ15, Z15 corresponding to the screen shot from the map information storage unit 11. And the place name “Kobe Sannomiya”. The position information (X15, Y15) indicates the coordinates of the upper left position in the screen shot (here, latitude and longitude). Further, θ15 of the position information indicates an azimuth angle in the north direction in the screen shot. The position information Z15 indicates the scale of the screen shot map. In addition, the current date and time “September 21, 2009, 10:15” is acquired from a calendar unit and a clock unit (not shown) (step S104). And the screen shot acquisition part 12 accumulate | stores the screen shot map information containing those information in the screen shot memory | storage part 13 (step S105). The first record in FIG. 7 shows the screen shot map information accumulated in this way. In FIG. 7, an ID for identifying screen shot map information, date and time information, position information, an image (screen shot), and a place name are associated with each other. The position information is assumed to be latitude / longitude information. Further, it is assumed that the screen shot images are all the images being displayed. That is, the image “P015.jpg” is assumed to be the entire map of FIG. In addition, when the screen shot acquisition part 12 accumulate | stores new screen shot map information, it shall accumulate | store the additional information of the blank which has the same ID as the screen shot map information.

  Next, in the display of FIG. 6, it is assumed that the user presses the “screen shot display” button with a finger. Then, the reception unit 22 determines that an instruction to display the screen shot map information has been received, and passes that fact to the display unit 23 (step S106). Then, the display unit 23 and the like perform processing for displaying the screen shot map information (step S107).

  Specifically, as shown in FIG. 8, the display unit 23 displays three buttons of “classify by position”, “classify by date”, and “no classification”. In this display, when the user presses the “category by position” button, the receiving unit 22 determines that the classification by position has been selected (steps S201 and S202), and the position classification unit 14 is moved to the position by the route not shown. Give instructions to classify. Then, the position classification unit 14 classifies the screen shot map information stored in the screen shot storage unit 13 using the position information (Step S203). Specifically, it is assumed that the position classification unit 14 can access the position classification information of FIG. 9 stored in a recording medium (not shown). The position classification information in FIG. 9 is information that associates a region name with region information indicating a region region identified by the region name. The area information is information indicating the coordinate value of the outline of the area. For example, the Kobe city area is an area surrounded by (X101, Y101), (X102, Y102), (X103, Y103). The position classification unit 14 uses this position classification information to specify, for example, area information including position information (X15, Y15), and adds the position information (X15, Y15) to the area name corresponding to the specified area information. ) Screen shot map information including. The position classification unit 14 performs this process on all the screen shot map information.

  The display unit 23 displays the screen shot map information thus classified for each region (step S205). Specifically, the region name is displayed in a pull-down menu, and an image of the screenshot map information of the region corresponding to the initial value of the pull-down menu is displayed. FIG. 10 is a diagram showing the screen shot map information displayed as described above. In the upper left of FIG. 10, the region “Kobe City” is displayed as an initial value. One of the screen shot map information included in Kobe City is displayed. When the user presses the triangular buttons displayed on the left and right of the image with a finger, the accepting unit 22 accepts an instruction to change the screen shot map information (step S206), and is displayed according to the instruction. The screen shot map information is changed (step S207). That is, other screen shot map information classified into the area name “Kobe City” is displayed. Further, when another area is selected in the pull-down menu, the screen shot map information of that area is displayed (steps S206 and S207).

  In the display of FIG. 10, when the user presses the “select” button displayed in the upper right, the currently displayed screenshot map information is selected to be used for generating route information (step S208, S209). Specifically, the display unit 23 accumulates an ID “14” for identifying the currently displayed screenshot map information in a recording medium that stores the ID of the selected screenshot map information.

  Next, in the display of FIG. 10, when the user presses the “back” button displayed on the upper right, the reception unit 22 receives an instruction to display additional information and passes the instruction to the display unit 23 (step S210). ). Then, the display unit 23 and the like perform processing for displaying additional information (step S211). Specifically, the display unit 23 displays a moving image that flips the currently displayed screen shot map information, and displays additional information having the same ID “14” as the currently displayed screen shot map information (step S301). In this case, it is assumed that the additional information is blank and nothing is set. Then, it is assumed that the user inputs the name of additional information “Chinese cuisine ABC” and a memo “Nankinmachi no. Then, they are received by the additional information receiving unit 16 (step S302), stored in the screen shot storage unit 13 by the additional information storage unit 17 (step S303), and displayed (step S304). Further, it is assumed that the user inputs an image of a Chinese restaurant taken with a mobile phone to the map information display device 1 via infrared communication. Then, the additional information receiving unit 16 receives the image (step S302), and the additional information accumulating unit 17 accumulates the image in the screen shot storage unit 13 (step S303). FIG. 11 is a diagram showing the additional information accumulated as described above. In FIG. 11, an ID for identifying additional information, a name, a memo, and a photograph are associated with each other. As described above, the ID is used in association with the screen shot map information. Since the additional information for ID “14” has been input this time, the name, memo and photo of ID “14” are stored in FIG. Thereafter, the display unit 23 displays the additional information after accumulation (step S304). FIG. 12 shows the display. Thereafter, when the user presses the “Map” button displayed in the lower right of FIG. 12, the reception unit 22 receives an instruction to end the display of the additional information, and passes the instruction to the display unit 23 ( Step S305). The display unit 23 performs the display of FIG. 10 that displays the screen shot map information of the original ID “14” after displaying the moving image that turns over the additional information.

  Next, when the user presses the “route” button displayed in the upper right in the display of FIG. 10, the reception unit 22 receives an instruction to generate route information and passes the instruction to the display unit 23 (step S212). ). Then, the display unit 23, the route information generation unit 20, and the like perform processing for displaying route information (step S213). Specifically, the display unit 23 accesses a recording medium that stores the ID of the selected screen shot map information, and reads the ID stored therein. In this case, it is assumed that only ID “14” is stored. Then, as shown in FIG. 13, the display unit 23 displays the map information at that time and the selected screen shot map information (step S401). In the display of FIG. 13, the user drags with a finger from a point with map information to a point with screen shot map information. Then, the position accepting unit 19 accepts designation of a position where the position on the map information of the starting point of the drag is the starting point of the route, and the position on the screen shot map information of the end point of the drag is the ending point of the route. Are transferred to the route information generation unit 20 (step S402). The route information generation unit 20 converts each of the two received positions into coordinates (latitude / longitude) corresponding to each position, generates route information using the converted latitude / longitude, and displays the display unit. 23 (step S403). The display unit 23 displays the route information (step S404). As a result, the display of FIG. 14 is made. In FIG. 14, a route image indicating the route is displayed. Further, a distance “1.1 km” and a travel time “2 minutes” are displayed. In this specific example, the case where the map information display device 1 is a car navigation device is described, so this travel time is a travel time in an automobile. In the display of FIG. 14, when the user presses the “OK” button, the accepting unit 22 accepts that the display is terminated (step S405), and the display unit 23 performs the display of FIG. 10 (step S406).

  In the display of FIG. 10, when the user presses the “end” button displayed on the upper right, the reception unit 22 receives an instruction to end the display of the screen shot map information, and passes the instruction to the display unit 23. (Step S214). Then, the display unit 23 ends the display of the screen shot map information (step S215), and displays the map information corresponding to the current position at that time (steps S101 and S102).

  When the user inserts the optical disc in which the screen shot map information and the additional information are stored into the map information display device 1, the screen shot receiving unit 18 reads out the screen shot map information and the like, and the additional information storage unit 17. (Step S108). Then, the additional information storage unit 17 stores the screen shot map information and the like in the screen shot storage unit 13. As a result, the user can view the screen shot map information stored on the optical disc. When the screen shot map information is, for example, screen shot map information of a restaurant in Kobe city and additional information that is an explanation of the restaurant, the user views the screen shot map information or the like. By this, you will be able to know about gourmet information in Kobe.

  In this specific example, the case where one piece of screen shot map information is selected has been described. However, when two pieces of screen shot map information are selected, two screens are displayed as shown in FIG. The shot map information will be displayed. Also in this case, when dragging from a position where one of the screen shot map information is present to a position where the other screen shot map information is present, corresponding route information is generated and displayed. Since the process is the same as that described above, the description thereof is omitted.

  Further, in this specific example, the case where the screen shot map information after classification is displayed for each region selected by the pull-down menu has been described, but the display method of the screen shot map information after classification does not matter. For example, as shown in FIG. 16, the region may be selected by a tab.

  In this specific example, the case where the classification is performed using the position information has been described. However, the classification may be performed using the date information. In that case, for example, as shown in FIG. 17, classification is performed according to the period from that point.

  Further, in this specific example, when the screen shot map information is displayed (for example, in the case of the display in FIG. 10), by continuously pressing (double-tapping) the image of the screen shot map information twice. The map information of the area corresponding to the screen shot map information may be displayed, or, in the current navigation, the position of the screen shot map information is the target position (for example, the position where the double tap is performed is the target position). May be set). In this case as well, the map information can be displayed and the target position can be set by using the position information included in the screen shot map information.

  In this specific example, the selected screen shot map information may be displayed small (for example, as a thumbnail) in an empty place on the screen. And you may designate the position for the production | generation of route information using the display of the screen shot map information. When specifying the position, the display range of the screen shot map information may be enlarged or reduced.

  In this specific example, when displaying the screen shot map information, the screen shot map information associated with the non-blank additional information is displayed such that the lower right edge is slightly turned. May be. By performing the display, the user can easily visually grasp the presence or absence of additional information.

  In this specific example, the screen shot map information shown in FIGS. 13 and 15 is provided with a “close button” similar to that provided in the window in the window system, and the close button is pressed. The screen shot map image may disappear from the display by being tapped.

  As described above, according to the map information display device 1 according to the present embodiment, it is possible to acquire and accumulate screenshot map information including position information and the like. As a result, the screen shot map information can be effectively used for generating route information. Moreover, since additional information can also be input, it is possible to leave a memo or the like on the map.

  In the present embodiment, the case where route information is generated using screen shot map information or map information has been described, but this need not be the case. When the route information is not generated, the map information display device 1 may not include the position reception unit 19 and the route information generation unit 20.

  Moreover, although this Embodiment demonstrated the case where screen shot map information and additional information were received from the outside, it does not need to be so. When the screen shot map information or the like is not received from the outside, the map information display device 1 may not include the screen shot receiving unit 18.

  Moreover, although this Embodiment demonstrated the case where additional information was input with respect to screenshot map information, it may not be so. When the additional information is not input, the map information display device 1 may not include the additional information receiving unit 16 and the additional information accumulating unit 17.

  In the present embodiment, the case where the screen shot map information is classified using the date / time information has been described, but this need not be the case. When the classification using the date information is not performed, the map information display device 1 may not include the date classification unit 15. Further, when the classification using the date information is not performed, the date information may not be included in the screen shot map information.

  Moreover, although this Embodiment demonstrated the case where the screen shot map information was classified using position information, it may not be so. When the classification using the position information is not performed, the map information display device 1 may not include the position classification unit 14.

  Moreover, although this Embodiment demonstrated the case where position information, date information, and a place name were included in the screen shot map information, information other than the position information may not be included in the screen shot map information. Further, other information (for example, last access date / time information indicating the last access date / time information) may be included in the screen shot map information. When the screen shot map information includes the last access date / time information, each time the screen shot map information is displayed, the last access date / time information is updated to the current date / time. This update may be performed by an update unit (not shown).

  Moreover, although the case where the map information display device 1 is a car navigation device has been described in the present embodiment, this need not be the case. The map information display device 1 may be a navigation device used on foot, bicycle, etc. other than automobiles. In that case, the map information display device 1 may be, for example, a mobile phone or a PDA. Moreover, the map information display apparatus 1 may not have a navigation function. In that case, the map information display device 1 may not include the current position acquisition unit 21.

  Further, in the present embodiment, a case has been described in which the screen acquisition unit 12 acquires screen shot map information when the reception unit 22 receives an instruction to acquire a screen shot. The shot map information may be acquired, and the timing of acquiring the screen shot map information does not matter. For example, the map information display device 1 may automatically acquire the screen shot map information at the visited site. When the user arrives at the destination, the map information display device 1 is likely to be turned off. In that case, the map information display device 1 is turned on when leaving the destination. Therefore, the timing for automatically acquiring the screen shot map information may be when the map information display device 1 is activated. By doing in this way, it is thought that the screenshot map information of a visited place can be acquired automatically. Needless to say, the screen shot map information may be automatically acquired at other timings. For example, when it is detected using the current position acquired by the current position acquisition unit 21 that the current position does not change more than a threshold value (the current position may not change within the error range). The screen shot map information may be acquired.

  Moreover, you may enable it to add the image drawn with the finger | toe suitably with respect to the image of screen shot map information. For example, when a user draws a figure, a symbol, a character, etc. with a finger on the touch panel in order to indicate a user's desired position, indicate a desired route, or leave desired information, it is drawn with that finger. The image may be added to the image of the screen shot map information. At that time, for example, the receiving unit 22 receives the input image, and the screen shot acquiring unit 12 adds the received image to the screen shot map information stored in the screen shot storage unit 13. Good. And when displaying the image of a screen shot, the display part 23 may also display the image received in that way.

  Moreover, although this Embodiment demonstrated the case where the screen shot map information included the image of a screen shot, it may not be so. The screen shot map information may include information that can cut out the image from the map information instead of the screen shot image. The information that can cut out the screen shot image from the map information may be, for example, information indicating the positions of the four vertices of the screen shot image (for example, latitude / longitude information). If the aspect ratio of the image is determined, it may be information indicating the positions of the top two, the bottom two, the left two or the right two vertices of the screen shot image. Other information that can specify the position of the screen shot image may be used.

  Moreover, although the case where the map information display device 1 is a stand-alone has been described in the above embodiment, the map information display device 1 may be a stand-alone device or a server device in a server / client system. Good. In the latter case, the display unit or the reception unit may receive input or display information via a communication line.

  In the above embodiment, each process or each function may be realized by centralized processing by a single device or a single system, or may be distributedly processed by a plurality of devices or a plurality of systems. It may be realized by doing.

  In the above embodiment, information related to processing executed by each component, for example, information received, acquired, selected, generated, transmitted, or received by each component In addition, information such as threshold values, mathematical formulas, addresses, etc. used by each component in processing is retained temporarily or over a long period of time on a recording medium (not shown) even when not explicitly stated in the above description. It may be. Further, the storage of information in the recording medium (not shown) may be performed by each component or a storage unit (not shown). Further, reading of information from the recording medium (not shown) may be performed by each component or a reading unit (not shown).

  In the above embodiment, when information used by each component, for example, information such as a threshold value, an address, and various setting values used by each component may be changed by the user Even if it is not specified in the above description, the user may be able to change the information as appropriate, or it may not be. If the information can be changed by the user, the change is realized by, for example, a not-shown receiving unit that receives a change instruction from the user and a changing unit (not shown) that changes the information in accordance with the change instruction. May be. The change instruction received by the receiving unit (not shown) may be received from an input device, information received via a communication line, or information read from a predetermined recording medium, for example. .

  In the above embodiment, when two or more components included in the map information display apparatus 1 have a communication device or an input device, the two or more components have a physically single device. Or may have separate devices.

  In the above embodiment, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. In addition, the software which implement | achieves the map information display apparatus 1 in the said embodiment is the following programs. In other words, this program causes the computer to display the map information stored in the map information storage unit in which the map information that is information about the map is stored, and from the map information being displayed by the display unit, It is at least a part of the screen shots, acquires screen shot map information having position information that is position information corresponding to the screen shots, and functions as a screen shot acquisition unit that accumulates in the screen shot storage unit. A program that also displays screenshot map information.

  In the program, the functions realized by the program do not include functions that can be realized only by hardware. For example, functions that can be realized only by hardware such as a modem or an interface card in an acquisition unit that acquires information, a display unit that displays information, and the like are not included in at least the functions realized by the program.

  The program may be executed by being downloaded from a server or the like, and a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed by Further, this program may be used as a program constituting a program product.

  Further, the computer that executes this program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 18 is a schematic diagram showing an example of the external appearance of a computer that executes the program and realizes the map information display device 1 according to the embodiment. The above-described embodiment can be realized by computer hardware and a computer program executed on the computer hardware.

  18, a computer system 900 includes a computer 901 including a CD-ROM (Compact Disk Read Only Memory) drive 905 and an FD (Floppy (registered trademark) Disk) drive 906, a keyboard 902, a mouse 903, a monitor 904, and the like. Is provided.

  FIG. 19 is a diagram showing an internal configuration of the computer system 900. In FIG. 19, in addition to the CD-ROM drive 905 and the FD drive 906, a computer 901 is connected to an MPU (Micro Processing Unit) 911, a ROM 912 for storing a program such as a bootup program, and the MPU 911. A RAM (Random Access Memory) 913 that temporarily stores program instructions and provides a temporary storage space, a hard disk 914 that stores application programs, system programs, and data, and an MPU 911 and a ROM 912 are interconnected. And a bus 915. The computer 901 may include a network card (not shown) that provides connection to the LAN.

  A program for causing the computer system 900 to execute the function of the map information display device 1 according to the above embodiment is stored in the CD-ROM 921 or the FD 922, inserted into the CD-ROM drive 905 or the FD drive 906, and the hard disk 914. May be forwarded to. Instead, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 914. The program is loaded into the RAM 913 when executed. The program may be loaded directly from the CD-ROM 921, the FD 922, or the network.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 901 to execute the functions of the map information display device 1 according to the above embodiment. The program may include only a part of an instruction that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 900 operates is well known and will not be described in detail.

  Further, the present invention is not limited to the above-described embodiment, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, according to the map information display device and the like according to the present invention, an effect that the screen shot map information can be effectively used is obtained, and it is useful as a device for displaying a map.

DESCRIPTION OF SYMBOLS 1 Map information display apparatus 11 Map information storage part 12 Screenshot acquisition part 13 Screenshot storage part 14 Position classification part 15 Date and time classification part 16 Additional information reception part 17 Additional information storage part 18 Screenshot reception part 19 Position reception part 20 Route information Generation unit 21 Current position acquisition unit 22 Reception unit 23 Display unit

Claims (13)

A map information storage unit that stores map information that is information about the map;
A display unit for displaying the map information;
A screen shot storage unit that stores at least a part of the map information displayed by the display unit, and stores screen shot map information having position information that is position information corresponding to the screen shot;
A screen shot acquisition unit that acquires screen shot map information from the map information being displayed by the display unit and stores the screen shot storage unit in the screen shot storage unit;
The said display part is a map information display apparatus which also displays screenshot map information. A position classification unit that classifies the screenshot map information for each position indicated by the position information;
The map information display device according to claim 1, wherein the display unit displays the screen shot map information classified by the position classification unit. The map information display device according to claim 1, wherein the screen shot map information is information including date / time information that is date / time information when the screen shot map information is acquired. A date and time classification unit that classifies the screenshot map information according to the date and time indicated by the date and time information;
The map information display device according to claim 3, wherein the display unit displays the screen shot map information classified by the date and time classification unit. An additional information receiving unit that receives input of additional information that is information corresponding to the screen shot map information;
An additional information storage unit that stores the additional information received by the additional information reception unit in the screen shot storage unit in association with the screen shot map information;
The map information display device according to any one of claims 1 to 4, wherein the display unit displays the screen shot map information and additional information corresponding to the screen shot map information so as to have a front-back relationship. . A screen shot receiving unit for receiving screen shot map information and additional information corresponding to the screen shot map information;
The map information display device according to claim 5, wherein the additional information storage unit stores the screen shot map information received by the screen shot receiving unit and the additional information in association with each other in the screen shot storage unit. When the display unit displays map information and screen shot map information, a position receiving unit that receives designation of the position in the map information and the position in the screen shot map information;
A route information generating unit that generates route information that is information about a route between the position in the map information received by the position receiving unit and the position in the screen shot map information;
The map information display device according to claim 1, wherein the display unit also displays the route information generated by the route information generation unit. When the display unit displays two pieces of screen shot map information, a position receiving unit that receives designation of a position in each of the two pieces of screen shot map information;
A route information generating unit that generates route information that is information about a route between positions in each of the two screenshot map information received by the position receiving unit;
The map information display device according to claim 1, wherein the display unit also displays the route information generated by the route information generation unit. The map information display device according to claim 7 or 8, wherein the route information includes a distance between two positions. The map information display device according to claim 7, wherein the route information includes a travel time between two positions. The map information display device according to claim 7, wherein the route information includes a route image that is an image indicating a route between two positions. Map information display method processed using a map information storage unit that stores map information that is information relating to a map, a display unit, a screen shot storage unit that stores screen shot map information, and a screen shot acquisition unit Because
A display step in which the display unit displays the map information;
The screen shot acquisition unit has at least a part of the map information from the map information being displayed in the display step, and has the position information corresponding to the screen shot. Acquiring a screen shot and storing it in the screen shot storage unit;
A map information display method comprising: a screen shot display step in which the display unit displays screen shot map information stored in the screen shot storage unit. Computer
A display unit that displays map information stored in a map information storage unit in which map information that is information about the map is stored;
A screen shot storage unit that obtains screen shot map information having position information that is at least a part of the screen shot of the map information and is position information corresponding to the screen shot from the map information being displayed by the display unit. Function as a screenshot acquisition unit that accumulates in
The display unit is a program that also displays screen shot map information.

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