JP2007034214A - Map system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a map system that enables a base point to easily and optionally be set and displays two-dimensional rectangular coordinates of a measurement point relative to the base point so that the distance from the base point to the measurement point can be grasped at a glance. <P>SOLUTION: The map system transmits desired map data from a map transmitting server 2 to a map display device 1 through the Internet 3, and also sets a certain point on the map as a measurement point MP and displays two-dimensional rectangular coordinates (X, Y) of the measurement point MP on a display 11. The two-dimensional rectangular coordinates (X, Y) are calculated by calculating a distance (r) and plane rectangular coordinates (X<SB>0</SB>, Y<SB>0</SB>) from latitude and longitude information on the base point BP and measurement point MP, or finding plane rectangular coordinates (X<SB>0</SB>, Y<SB>0</SB>) and (X<SB>r</SB>, X<SB>r</SB>) from latitudes and longitudes of the base point BP and measurement point MP respectively and finding their differences. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a map system capable of arbitrarily selecting a base point and capable of displaying a two-dimensional rectangular coordinate (X, Y) of a measurement point with respect to the base point.

  Conventionally, planar maps have been created using various coordinate systems. Typical coordinate systems include a UTM coordinate system and a planar rectangular coordinate system. The UTM coordinate system divides the earth ellipsoid into 60 zones with equal longitude differences, with the ellipsoid cut into north and south with meridians every 6 degrees longitude, and the origin of each zone is the intersection of the equator and the central meridian With the equator on the horizontal axis and the central meridian on the vertical axis. On the other hand, the plane Cartesian coordinate system divides Japan's territory excluding the northern territory into 19 coordinate systems, sets the origin for each, the meridian passing through this origin is the X axis (vertical axis), passes through the origin and is orthogonal to the X axis The line to be used is the Y axis (horizontal axis).

  Thus, the conventional map is created based on the preset origin, and the coordinates of each place are also set based on this origin. Therefore, in particular, when creating a regional map such as a municipality unit or a neighborhood association unit, for example, a base point is arbitrarily set, and landmarks such as schools, hospitals, shops, etc. on the map are included based on this base point In order to display the coordinates of each point, a person must actually go to the site to perform surveying, which is costly and requires a lot of labor (for example, Patent Document 1).

  On the other hand, in recent years, there is a display that displays the position of each point on a map, in which latitude and longitude are displayed instead of coordinate display. For example, there is a method of receiving latitude / longitude information of a current location using a GPS satellite and displaying it on a GPS receiver. However, this latitude / longitude is expressed as an angle, such as XX degrees XX minutes XX seconds, XX degrees XX'XX, etc., so you can grasp the distance from the base point to the station at a glance. I couldn't.

Utility Model Registration Gazette No. 2579771

  The present invention has been made in view of the above circumstances, and the object of the present invention is that the base point can be easily and arbitrarily set and the two-dimensional rectangular coordinates of the measuring point with respect to the base point are displayed. The object is to provide a map system that can grasp the distance from a base point to a measuring point at a glance.

  In order to solve the above problems, the present invention transmits map data from a map transmission server to a map display device via a public network such as the Internet, and displays a map corresponding to the transmitted map data on the map display. A map system for displaying on a device and displaying two-dimensional rectangular coordinates (X, Y) of a certain point on the map on the map display device, wherein the map transmission server transmits the map to the map display device A map database storing data, a point information database storing at least latitude / longitude information of a certain point, and a request signal from the map display device are received, and desired map data is transmitted to the map display device. Display means for displaying a map corresponding to the map data transmitted by the transmission / reception means. In the point information database, latitude / longitude information is stored in the point information database, and one of the points displayed on the map displayed by the display unit can be selected from one point as a base point, and the point information database Latitude / longitude information is stored, and there is a station selection means capable of selecting a certain point on the map other than the base point as a station for the base point, and the map transmission server further includes the base point selection. A calculation means for calculating a two-dimensional rectangular coordinate (X, Y) of the measurement point selected by the measurement point selection means with respect to the reference point, the calculation means comprising: The distance r between the base point and the station and the azimuth angle θ of the station at the base point are calculated from the latitude / longitude information of the station and the latitude / longitude information of the station. Dimensional rectangular coordinates (X, Y) are calculated, and the transmitting / receiving means transmits the two-dimensional rectangular coordinates (X, Y) calculated by the calculating means to the map display device, and the display means is the calculating means. The two-dimensional rectangular coordinates calculated by the above are displayed.

  This two-dimensional rectangular coordinate (X, Y) is a line that has a base point as the origin, a radial line (meridian) passing through the base point as the X axis, and passes through the base point and is orthogonal to the X axis, as in the plane rectangular coordinate system. This represents the XY coordinates when the (parallel) is taken on the Y axis. Further, the two-dimensional rectangular coordinates (X, Y) are displayed by appropriately multiplying the scale according to the range of the map displayed on the display means (for example, prefecture unit, city unit, village unit, etc.). To. For example, when the distance r is calculated in m units and the two-dimensional rectangular coordinates (X, Y) are displayed in 10 m units, a value obtained by multiplying the value calculated from the distance r by 1/10 is displayed. To do. Here, the azimuth angle θ is a horizontal angle obtained by measuring the direction of the measurement point clockwise with respect to the X axis. Further, the two-dimensional rectangular coordinate (X, Y) is calculated by, for example, X = rCOSθ, Y = rSINθ, with true north and true east being positive. It is displayed so as to be a correct value. The distance r and the azimuth angle θ are calculated using, for example, the method described in the literature of “TOTAL INVERSE SOLUTIONS FOR THE GEODESIC AND GREAT ELLIPTIC B.R. Bowring Survey Review, 33, 261 (July 1996) 461-476”.

Further, the present invention transmits map data from a map transmission server to a map display device via a public line network such as the Internet, displays a map corresponding to the transmitted map data on the map display device, and A map system for displaying two-dimensional rectangular coordinates (X, Y) of a certain point on the map on the map display device, wherein the map transmission server stores map data to be transmitted to the map display device. And at least a point information database that stores the latitude / longitude information of the certain point, and a transmission / reception means for receiving a request signal from the map display device and transmitting desired map data to the map display device. The map display device includes display means for displaying a map corresponding to the map data transmitted by the transmission / reception means, and the point information. Latitude / longitude information is stored in the database, and out of a certain point on the map displayed by the display means, base point selection means that can select one point as a base point, and latitude / longitude information is stored in the point information database. And a station selection unit that can select a point on the map other than the base point as a station for the base point, and the map transmission server further includes a base point selected by the base point selection unit And calculating means for calculating two-dimensional rectangular coordinates (X, Y) with respect to the base point of the measurement point selected by the measurement point selection means, and the calculation means is based on latitude / longitude information of the base point. The plane rectangular coordinates (X ₀ , Y ₀ ) of the base point are calculated, the plane rectangular coordinates (X _r , Y _r ) of the station are calculated from the latitude / longitude information of the station, and the X coordinate, Y The two-dimensional rectangular coordinate (X, Y) is calculated by calculating the difference between the coordinates, and the transmitting / receiving unit displays the two-dimensional rectangular coordinate (X, Y) calculated by the calculating unit on the map display. Transmitting to the apparatus, the display means displays the two-dimensional rectangular coordinates calculated by the calculation means.

Here, the two-dimensional rectangular coordinates (X, Y) are calculated using a calculation method different from the above calculation method. That is, the plane rectangular coordinates of the base point and the measuring point are calculated from the latitude and longitude of the base point and the measuring point, and then the two-dimensional rectangular coordinates (X, Y) of the measuring point are calculated using the base point as the origin (0, 0). . As this method is calculated by determining the following operation expression _{X = X r -X 0, Y} = Y r -Y 0.
In addition, as a calculation formula for obtaining plane rectangular coordinates from latitude and longitude, for example, the Geographical Survey Institute website http://vldb.gsi.go.jp/sokuchi/surveycalc/algorithm/bl2xy/bl2xy.htm may be used. . Further, the map display device is composed of, for example, a desktop computer, a laptop computer, or a mobile phone or PDA that can be connected to the Internet and has a Web page display function.

  In the present invention, the display means may display a scaled XY coordinate axis with the meridian passing through the base point as the X-axis and the graticule passing through the base point and perpendicular to the X-axis as the Y-axis. Good.

  Further, in the present invention, the station selection means may be configured so that a plurality of points on the map stored in the point information database and displayed on the display means can be selected as the station. .

  In the present invention, the two-dimensional rectangular coordinates (X, Y) may be displayed in the vicinity of the measurement point.

  In the present invention, the point information database may store related information of a point on the map, and the display unit may display the related information.

  The present invention transmits map data from a map transmission server to a map display device via a public line network such as the Internet, and displays a map corresponding to the transmitted map data on the map display device. A map system for displaying two-dimensional rectangular coordinates (X, Y) of a certain point on the map display device, wherein the map transmission server stores a map database storing map data to be transmitted to the map display device, At least a point information database that stores latitude / longitude information of a certain point, and a transmission / reception means for receiving a request signal from the map display device and transmitting desired map data to the map display device, Furthermore, the map system is a point on the map where latitude / longitude information is not accumulated in the point information database, A latitude / longitude receiving terminal composed of a GPS receiving terminal capable of receiving the latitude / longitude information of a point displayed on the map display device, and the latitude / longitude receiving terminal receives the latitude / longitude of the received point Latitude and longitude transmission means for transmitting longitude information to the map transmission server via the public line network, and the map display device includes display means for displaying a map corresponding to the map data transmitted by the transmission / reception means; The latitude / longitude information is stored in the point information database, and the station selection means is capable of selecting a point on the map displayed by the display means as a station, and the transmission / reception means includes the latitude The latitude / longitude information of a certain point transmitted by the longitude transmitting means is received. Further, the map transmission server receives the latitude / longitude information received by the receiving means based on the certain point. And calculating means for calculating the two-dimensional rectangular coordinate (X, Y) of the station with the origin as the origin, and the calculator means includes latitude / longitude information of the base point and latitude / longitude of the station. By calculating the distance r between the base point and the measuring point and the azimuth angle θ of the measuring point at the base point from the information, the two-dimensional rectangular coordinate (X, Y) is calculated, and the transmitting / receiving means Transmits the two-dimensional rectangular coordinates (X, Y) calculated by the calculating means to the map display device, and the display means displays the two-dimensional rectangular coordinates calculated by the calculating means. To do.

  Moreover, in this invention, you may have a printing means to print the map on which the two-dimensional rectangular coordinate of the measuring point was displayed.

  As is clear from the above-described configuration, according to the map system of the present invention, a base point is arbitrarily selected using a map display device, the Internet, a map transmission server, etc., and the two-dimensional rectangular coordinates ( Since it is possible to provide a map displaying X, Y), it is not necessary for a person to survey in order to determine the base point, cost and labor can be reduced, and the distance from the base point to the station can be reduced. It is easy to use because it can be seen at a glance.

  Further, according to the present invention, since the latitude / longitude information of the base point is received by the GPS receiving terminal, the latitude / longitude information of the base point can be received in real time. Therefore, for example, when a real estate agent creates a map for selling a condominium that is not yet stored in the point information database, the user can go to the site where the condominium is located. A sales map that understands the surrounding situation can be created, and the cost of creating the map can be reduced.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a map system according to the first embodiment of the present invention, FIG. 2 is a diagram showing an example of information stored in a point information database, and FIG. 3 is an example of a calculation method of a calculation means. FIG.

  In FIG. 1, a map display device 1 and a map transmission server 2 are connected via the Internet 3.

  The map display device 1 includes a laptop computer, a desktop computer, and the like, and includes a display unit (hereinafter referred to as “display”) 11 including a liquid crystal panel, a CRT display, and the like, and a pointing device including a mouse, a tablet, and the like. 12 (hereinafter referred to as “mouse”). Further, the display 11 can display a cursor 13 (see FIG. 6), and when the mouse 12 is moved, the cursor 13 moves in conjunction with the display 11.

  Further, the map display device 1 is software for browsing a map information Web page, which will be described later, distributed from the map transmission server 2 via the Internet 3, for example, a Web made up of “Internet Explorer”, “Net scale Navigator” or the like. A browser is provided, and the map information Web page can be displayed on the display 11. In the present embodiment, a printer PR is connected to the map display device 1 via a LAN or the like, and the map displayed on the map display device 1 is configured to be printable.

  The map transmission server 2 includes a map database 21 in which a map to be transmitted to the map display device 1 is accumulated, and a point information database 22 in which point information of a certain point on the transmitted map is accumulated. In addition, a search unit 23, a calculation unit 24, a control unit 25, and a transmission / reception unit 26 are provided.

  The map database 21 stores, for example, various maps such as a nationwide map of Japan, a map of prefectures, a map of cities, etc., and receives a request signal from the map display device 1 as will be described later. The map of can be taken out.

  In the point information database 22, information regarding a certain point on the map which is taken out in response to a request from the map display device 1 and displayed on the display 11 is accumulated. For example, as shown in FIG. 2, the latitude and longitude of each point are accumulated for each point, and the name, latitude and longitude, telephone number, address, business hours, and vacant room information of the point are associated with this. Accompanying information such as the above is accumulated as related information of each point. Furthermore, each location has a registration NO. 1 to n are associated and accumulated. As a method for accumulating the spot information in the spot information database 22, for example, a web page for registering spot information is provided from the map transmission server 2, and necessary items are written in a predetermined registration form, and then a mouse or the like. When the transmission operation is performed using, the map transmission server 2 receives this via the Internet 3 and sends it to the point information database 22 so that the point information database 22 is classified and stored for each point and for each item. Just keep it. With such a configuration, the location information can be easily updated.

  The data stored in the point information database 22 may be associated with each point on the map stored in the map database 21 using, for example, GIS (Geographical Information System) software. Good.

  As will be described later, when the search means 23 receives a request signal for a desired map from the map display device 1 via the transmission / reception means 26, the search means 23 searches the map database 21 for the requested map, and retrieves the searched map data. It is configured to pass to the control means 25. As will be described later, when the base point and the measuring point are selected by the map display device 1 and the search means 23 receives a search request signal for latitude / longitude information of the selected base point and the measuring point, the latitude of the corresponding base point is obtained. The longitude data and the latitude / longitude data of the corresponding station are passed to the calculation means 24, while the related information of the station is passed to the control means.

  The calculation means 24 uses the latitude / longitude data of the base point and the latitude / longitude data of the measurement point passed by the search means 23 as the base point as the origin (0, 0), and the two-dimensional rectangular coordinates (X, Y) is calculated, and the result is passed to the control means 25. As a method of calculating the two-dimensional rectangular coordinates (X, Y), for example, as shown in FIG. 3A, the distance r between the base point and the measurement point is calculated from the latitude and longitude of the base point and the measurement point. After calculating the azimuth angle θ, there is a method of calculating by calculating the following arithmetic expressions X = rCOSθ and Y = rSINθ.

In addition, as shown in FIG. 3B, the plane rectangular coordinates (X ₀ , Y ₀ ) of the base point are calculated from the latitude / longitude information of the base point, and the plane of the station is calculated from the latitude / longitude information of the station. There is a method of calculating two-dimensional rectangular coordinates (X, Y) by calculating rectangular coordinates (X _r , Y _r ) and calculating differences between the X coordinates and Y coordinates.

  Further, the calculation means 24 uses the base point from the calculated two-dimensional rectangular coordinates (X, Y) as the origin, the meridian passing through the base point as the X axis, and the latitude line passing through the base point and orthogonal to the X axis as the Y axis. Obtain XY coordinate axes with north and east as positive directions. Further, the XY coordinates are scaled so as to correspond to the two-dimensional rectangular coordinates (X, Y) to generate scaled XY coordinate axes, which are calculated as the XY coordinate axis display request signal with scales. Along with the dimensional rectangular coordinates (X, Y), it is configured to be passed to the control means 25.

  The control means 25 obtains the calculation result passed by the calculation means 24, that is, the two-dimensional rectangular coordinates (X, Y) of the measuring point with the origin as the origin (0, 0), the related information passed by the search means 23. It is configured to pass to the transmission / reception means 26 in association with

  Next, the operation of the map system of the present invention will be described.

  First, a map information Web page is provided from the map transmission server 2, and when a request signal for desired map data is transmitted from the map display device 1 to the map transmission server 2 using this map information Web page, the map transmission server 2, the transmission / reception means 26 receives this request signal, and then, under the control of the control means 25, the search means 23 searches for the corresponding map from the map database 21, To the map display device 1. As such a method, for example, a well-known electronic map search system such as Chizumaru (registered trademark) or Mapion (registered trademark) may be used.

  Next, in the map display device 1, a base point and a measurement point are selected from the map displayed on the display 11.

  As this selection method, for example, there are methods shown in FIGS. 4, 6, and 8. 4, 6, and 8 show examples of base point and station selection methods, and are a base point / station input screen 110 </ b> A on the display 11. 4 shows a case where a base point and a station are selected by inputting characters, FIG. 6 shows a case where a base point and a station are selected with a cursor, and FIG. 8 shows a case where a plurality of stations are selected.

  Hereinafter, each selection method will be described.

  The first selection method is shown in FIG. First, the configuration of the input screen 110A will be described. The input screen 110A includes a map display unit 111, a base point input unit 112, a point input unit 113, a conversion button 114, and a reset button 115. Further, the base point input unit 112 includes a base point search classification key 112A including items corresponding to the classification items of the above-described point information database 22, and a base point character input unit 112B that selects the base point BP by inputting characters. Similarly, the station input unit 113 also includes a station search classification key 113A composed of items corresponding to the classification items of the above-described point information database 22, and a station character input unit that selects the station MP by inputting characters. 113B. The conversion button 114 inputs a necessary item to both the base point input unit 112 and the point input unit 113 and then operates the mouse 12 to move the cursor 13 to perform a click operation, thereby generating a base point information request signal and point information. The request signal is configured to be transmitted to the map transmission server 2. The reset button 115 is configured to reset all input items when selected when there is an input error such as base point information.

  Next, a specific method for selecting the base point BP and the measurement point MP in the first selection method will be described. In this first selection method, the base point BP is XX real estate (1) and the base point BP is XX apartment (2). First, the “name” of the base point search classification key 112A is checked by operating the mouse 12, and then the character “XX real estate” is input to the base point character input unit 112B using a keyboard or the like. Next, the same operation is performed on the station input unit 113, the address of the station search classification key 113A is checked, and the station character input unit 113B is set to “XX ward XX town ○ chome ○ address ○ number”. "Is input. Thereafter, the mouse 12 is operated to move the cursor 13 to the conversion button 114 and then the mouse 12 is left-clicked. Then, the base point information request signal and the point information request signal are transmitted to the map transmission server 2 via the Internet 3.

  A second selection method is shown in FIG. First, the configuration will be described. Unlike the above-described FIG. 4, the input screen 110 </ b> A has means for selecting the base point BP / point MP using characters such as the base point input unit 112 and the point input unit 113. Instead, the base point BP and the measurement point MP are selected by the cursor 13 instead.

  Next, a specific method for selecting the base point BP and the measurement point MP in the second selection method will be described. Also in the second selection method, the base point BP is set to XX real estate (1) and the measurement point MP is set to XX apartment (2) as in the first selection method. First, by operating the mouse 12, the cursor 13 is set to the position of XX real estate (1) and the mouse 12 is left-clicked. Next, the mouse 12 is operated to move the cursor 13 to the position of the apartment (2), and the mouse 12 is left-clicked at this position. Thereafter, the cursor 13 is moved to the conversion button 114 as in the first selection method and left-clicked. Then, the base point information request signal and the point information request signal are transmitted to the map transmission server 2 via the Internet 3.

  A third selection method is shown in FIG. On this input screen 110A, the base point BP is selected by the cursor 13 in the same manner as in FIG. 6, but the way of selecting the base point BP is different from that shown in FIG. That is, in the method shown in FIG. 8, first, the base point BP is selected by the method shown in FIG. Thereafter, a position including the base point BP is set as the start point SP, the mouse 12 is dragged at the start point SP, and the mouse 12 is dropped at the end point EP. At the time of this dragging, a station designation window 15 is formed. When the mouse 12 is dropped, all points on the map that are included in the station designation window 15 and accumulated in the point information database 22 are used as base points BP. Configured to be selected. In FIG. 8, XX apartment (2), XX elementary school (3), XX store (4), and XX station (5) are selected as base points BP. The subsequent operations are the same as those in the first and second selection methods.

  Next, when the base point information request signal and the station information request signal are transmitted to the map transmission server 2 via the Internet 3 by any one of the above selection methods, the map transmission server 2 transmits these request signals by the transmission / reception means 26. The request signals are received and passed to the search means 23. Thereafter, the search means 23 searches the point information database 22 for point information that matches these request signals, and passes the base point information and the point information obtained as a result of the search to the transmission / reception means 26. Is transmitted to the map display device 1. Then, the map display apparatus 1 receives these pieces of information and displays the two-dimensional rectangular coordinates (X, Y) of the measurement point MP on the display 11.

  As a display method of the display 11, for example, there is a display example such as an output screen 110 </ b> B shown in FIGS. 5, 7, and 9.

  The first display example shown in FIG. 5 is a display example when the base point BP is XX real estate (1) and the measurement point MP is XX apartment (2), and two-dimensional rectangular coordinates (X, Y). (1) Coordinates (82, 90) are displayed outside the map display unit 111, and (2) Name, (3) Address, (4) Related information about XX apartment (2) such as accompanying information Is displayed. The coordinates (82, 90) indicate that "XX apartment (2) is located 82m north and 90m east from XX real estate (1)". Therefore, a person who looks at this map can grasp the distance from the base point BP to the side point MP at a glance. Further, not only the two-dimensional rectangular coordinate display but also information related to the measurement point MP is displayed, which is very convenient for a person viewing this map.

  In the second display example shown in FIG. 7, unlike the first display example, two-dimensional rectangular coordinates (X, Y) are displayed in the vicinity of the station MP on the map display unit 111, and the base point BP is displayed. A scaled XY coordinate axis 14 as the origin is displayed. The scaled XY coordinate axis 14 is displayed with the positive direction of the X axis being true north and the positive direction of the Y axis being true east. By displaying the scaled XY coordinate axis 14 in this way, it is possible to grasp the distance from the base point BP even at a point on the map where the two-dimensional rectangular coordinate display (X, Y) is not displayed. It becomes possible to improve usability.

  The third display example shown in FIG. 9 is a display example when a plurality of measurement points MP are selected as in the third selection example, and the base point BP is set to XX apartment (2). Also in this third display example, scaled XY coordinate axes are displayed on the map display unit 111 as in the second display example, but unlike the second display example, the two-dimensional rectangular coordinates of the station MP are displayed. (X, Y) is displayed in the vicinity of a plurality of measurement points MP. Further, as in the first display example, the related information of the station MP is displayed outside the map display unit 111, but since there are a plurality of station MPs, the station information corresponding to each base point BP is displayed. Has been.

  If two-dimensional rectangular coordinates (X, Y) of a plurality of measurement points MP are displayed in this way, a person who sees this map can know the distances from the base points BP of the plurality of measurement points MP at a glance. It becomes easy to use. Further, since the related information of the plurality of measurement points MP is also displayed, it is more convenient.

  By the method as described above, the map display device 1 displays a map on which the two-dimensional rectangular coordinates (X, Y) of the measurement point MP are displayed. Is printed by the printer PR.

  As described above, in the map system according to the present embodiment, a map on which the two-dimensional rectangular coordinates (X, Y) of the station MP are displayed can be printed. It can be used when creating a leaflet with a tag, and the time and effort for creating a leaflet can be greatly reduced.

  In the map system according to the first embodiment, a base point BP is arbitrarily selected using a map display device, the Internet, a map transmission server, and the like, and the two-dimensional rectangular coordinates (X, Y) of the measuring point MP with respect to the base point BP. Since it is possible to provide a map that displays, it is not necessary for the person to survey to determine the base point BP, the cost and labor can be reduced, and the distance from the base point BP to the station MP can be seen at a glance It is easy to use.

  Next, the map system according to the second embodiment of the present invention will be described with reference to FIG. 10, but the description of the same configuration and operation as those of the map system according to the first embodiment will be omitted.

  In the configuration of the map system according to the second embodiment, a GPS satellite 4, a GPS receiving terminal 5, a base station 6, a mobile phone network 7, and a gateway 8 are added to the configuration of the map system according to the first embodiment. It has been done. In particular, the difference from the map system according to the first embodiment is that the latitude / longitude information of the base point BP is received in real time by the GPS satellite 4 and the GPS receiving terminal 5, and the latitude / longitude information of the received base point BP is received. The two-dimensional rectangular coordinates (X, Y) of the measuring point MP can be displayed using Only the differences will be described below.

  As shown in FIG. 10, the map system according to the second embodiment receives latitude / longitude information from a GPS satellite 4 by a GPS receiving terminal 5, and the received latitude / longitude information is received by a base station 6 and a gateway 8. The transmission is made to the map transmission server 2 via the Internet 3. That is, unlike the map system according to the first embodiment, the latitude / longitude information of the base point BP is not stored in the point information database 22 in advance, but is received by the GPS receiving terminal 5 and transmitted to the map transmission server 2. It is the structure to be done. The GPS receiving terminal 5 is composed of a terminal that can receive the latitude and longitude of the current position using GPS, such as a cellular phone with a GPS function. In addition, the configuration may be such that the latitude / longitude of the current position is received using another satellite positioning system (for example, GLONASS, GALILEO, etc.). In addition, a system that can receive the latitude / longitude information of the current position may be applied as another system.

  Next, the operation of the map system according to the second embodiment will be described. Below, the point which has the GPS receiving terminal 5 is demonstrated as the base point BP.

  First, by operating the GPS receiving terminal 5, the latitude / longitude information of the base point BP is received from the GPS satellite 4, and the latitude / longitude information of the received base point BP is received from the base station 6, the mobile phone network 7, and the gateway 8. Then, the data is transmitted to the map transmission server 2 via the Internet 3. Then, the transmission / reception means 26 receives the latitude / longitude information of the base point BP and passes it to a temporary storage means such as a RAM (not shown), and the temporary storage means temporarily stores the latitude / longitude information of the passed base point BP. To remember. Next, when the station MP is selected and the station information request signal is transmitted to the map transmission server 2 from the map display device 1 by any of the selection methods described in the first embodiment, the transmitting / receiving means 26 Receives this, and passes this request signal to the search means 23. Thereafter, as described in the first embodiment, the search unit 23 searches the corresponding point information database 22 from the point information database 22 and passes the latitude / longitude information of the searched point MP to the calculation unit 24. . Then, the calculation means 24 takes out the latitude / longitude information of the base point BP temporarily stored from the temporary storage means, and based on the latitude / longitude of the base point BP thus taken out and the latitude / longitude of the measuring point MP, this base point. Two-dimensional rectangular coordinates (X, Y) of the measurement point MP with BP as the origin are calculated. This calculation method may be the same method as described in the first embodiment. Subsequent operations are the same as those in the first embodiment, and a description thereof will be omitted. In the present embodiment, the latitude / longitude information of the base point BP is received by the GPS receiving terminal 5, but it is also possible to adopt a configuration in which the latitude / longitude information of the measurement point MP is received.

  Further, the latitude / longitude information of the base point BP received by the GPS receiving terminal 5 may be configured to be stored in the point information database 22 instead of being deleted from the temporary storage means once used. .

  As described above, the map system according to the second embodiment has the following effects in addition to the effects exhibited by the first embodiment. That is, since the latitude / longitude information of the base point BP is received by the GPS receiving terminal, the latitude / longitude information of the base point BP can be received in real time. Therefore, for example, when a real estate agent creates a map for selling a condominium that has not yet been accumulated in the point information database, the user goes to the place where the condominium is located, and the second If the operation in this embodiment is performed, a sales map that easily understands the surrounding situation of the apartment can be created, and the cost of creating the map can also be reduced.

It is a schematic block diagram of the map system in 1st Embodiment. It is a figure which shows an example of the spot information accumulate | stored in the spot information database. It is a figure which shows an example of the calculation method of a calculation means. It is a figure which shows an example of the input screen of the base point / measurement point in a display. It is a figure which shows an example of the two-dimensional rectangular coordinate display of the measuring point of a display. It is a figure which shows an example of the input screen of the base point and the measuring point in a display It is a figure which shows an example of the two-dimensional rectangular coordinate display of the measuring point of a display. It is a figure which shows an example of the input screen of the base point and the measuring point in a display It is a figure which shows an example of the two-dimensional rectangular coordinate display of the measuring point of a display. It is a schematic block diagram of the map system in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Map display apparatus 11 Display 12 Mouse 13 Cursor 14 XY coordinate axis with a scale 15 Station specification window 110A Input screen 110B Output screen 111 Map display part 112 Base point input part 112A Base point search classification key 112B Base point character input part 113 Station input part 113A Station search classification key 113B Station character classification key 114 Conversion button 115 Reset button 2 Map transmission server 21 Map database 22 Point information database 23 Search means 24 Calculation means 25 Control means 26 Transmission / reception means 3 Internet 4 GPS satellite 5 GPS receiving terminal 6 Base station 7 Mobile phone network 8 Gateway PR Printer SP Start point
EP end point

Claims (8)

Map data is transmitted from the map transmission server to the map display device via the public line network such as the Internet, a map corresponding to the transmitted map data is displayed on the map display device, and a certain point on the map A two-dimensional rectangular coordinate (X, Y) on the map display device,
The map transmission server
A map database storing map data to be transmitted to the map display device;
At least the point information database that stores the latitude and longitude information of the above point,
A transmission / reception means for receiving a request signal from the map display device and transmitting desired map data to the map display device;
The map display device
Display means for displaying a map corresponding to the map data transmitted by the transmission / reception means;
Latitude / longitude information is accumulated in the location information database, and a base point selection means capable of selecting one point as a base point from a certain point on the map displayed by the display means;
Latitude / longitude information is stored in the point information database, and a point on the map other than the base point can be selected as a point for the base point, and a station selection means that can be selected.
Furthermore, the map transmission server
Having a calculation means for calculating a two-dimensional rectangular coordinate (X, Y) of the measurement point selected by the measurement point selection means with respect to the reference point, using the reference point selected by the reference point selection means as an origin,
The calculation means is
From the latitude / longitude information of the base point and the latitude / longitude information of the station, the distance r between the base point and the station and the azimuth angle θ of the station at the base point are calculated. Dimensional Cartesian coordinates (X, Y) are calculated,
The transmission / reception means includes
Transmitting the two-dimensional rectangular coordinates (X, Y) calculated by the calculating means to the map display device;
The display means is
A map system for displaying two-dimensional rectangular coordinates calculated by the calculating means. Map data is transmitted from the map transmission server to the map display device via the public line network such as the Internet, a map corresponding to the transmitted map data is displayed on the map display device, and a certain point on the map A two-dimensional rectangular coordinate (X, Y) on the map display device,
The map transmission server
A map database storing map data to be transmitted to the map display device;
At least the point information database that stores the latitude and longitude information of the above point,
A transmission / reception means for receiving a request signal from the map display device and transmitting desired map data to the map display device;
The map display device
Display means for displaying a map corresponding to the map data transmitted by the transmission / reception means;
Latitude / longitude information is accumulated in the location information database, and a base point selection means capable of selecting one point as a base point from a certain point on the map displayed by the display means;
Latitude / longitude information is stored in the point information database, and a point on the map other than the base point can be selected as a point for the base point, and a station selection means that can be selected.
Furthermore, the map transmission server
Having a calculation means for calculating a two-dimensional rectangular coordinate (X, Y) of the measurement point selected by the measurement point selection means with respect to the reference point, using the reference point selected by the reference point selection means as an origin,
The calculation means is
The plane rectangular coordinates (X ₀ , Y ₀ ) of the base point are calculated from the latitude / longitude information of the base point, and the plane rectangular coordinates (X _r , Y _r ) of the station are calculated from the latitude / longitude information of the station. And calculating the two-dimensional rectangular coordinates (X, Y) by calculating the difference between the X coordinate and the Y coordinate,
The transmission / reception means includes
Transmitting the two-dimensional rectangular coordinates (X, Y) calculated by the calculating means to the map display device;
The display means is
A map system for displaying two-dimensional rectangular coordinates calculated by the calculating means. The display means is
3. A scaled XY coordinate axis with the meridian passing through the base point as the X axis and the graticule passing through the base point and perpendicular to the X axis as the Y axis is displayed. The described map system. The station selection means is
The map according to any one of claims 1 to 3, wherein a plurality of points on the map stored in the point information database and displayed on the display means can be selected as the measurement points. system. The two-dimensional rectangular coordinates (X, Y) are
The map system according to claim 1, wherein the map system is displayed in the vicinity of the measurement point. The above point information database
In addition to accumulating relevant information for a point on the map,
The display means is
6. The map system according to claim 1, wherein the related information is displayed. Map data is transmitted from the map transmission server to the map display device via the public line network such as the Internet, a map corresponding to the transmitted map data is displayed on the map display device, and a certain point on the map A two-dimensional rectangular coordinate (X, Y) on the map display device,
The map transmission server
A map database storing map data to be transmitted to the map display device;
At least the point information database that stores the latitude and longitude information of the above point,
A transmission / reception means for receiving a request signal from the map display device and transmitting desired map data to the map display device;
Furthermore, the map system
A GPS receiving terminal that is capable of receiving the latitude / longitude information of a certain point on the ground where the latitude / longitude information is not stored in the point information database and displayed on the map display device. It has a latitude and longitude receiving terminal,
The latitude and longitude receiving terminal
Latitude / longitude transmission means for transmitting the received latitude / longitude information of a certain point to the map transmission server via the public line network;
The map display device
Display means for displaying a map corresponding to the map data transmitted by the transmission / reception means;
Latitude / longitude information is accumulated in the point information database, and has a station selection means that can select a point on the map displayed by the display means as a station,
The transmission / reception means includes
Receive the latitude / longitude information of a certain point transmitted by the latitude / longitude transmission means,
Furthermore, the map transmission server
While having a certain point which received latitude / longitude information by the receiving means as a base point, and having a calculating means for calculating the two-dimensional rectangular coordinates (X, Y) of the measuring point with the base point as an origin,
The calculation means is
From the latitude / longitude information of the base point and the latitude / longitude information of the station, the distance r between the base point and the station and the azimuth angle θ of the station at the base point are calculated. Dimensional Cartesian coordinates (X, Y) are calculated,
The transmission / reception means includes
Transmitting the two-dimensional rectangular coordinates (X, Y) calculated by the calculating means to the map display device;
The display means is
A map system for displaying two-dimensional rectangular coordinates calculated by the calculating means. The map system according to any one of claims 1 to 7,
The map system further comprises printing means for printing a map on which the two-dimensional rectangular coordinates of the measurement points are displayed.

Images