JP2006300603A - Navigation system, navigation device and recording medium recorded with program for navigation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system, navigation device and a recording medium recorded with a program for navigation for travelling to a destination in an area difficult to utilizing the GPS. <P>SOLUTION: The navigation system is composed of the GPS receiver, surveying equipment 3 and the compass data processor 4. The display 8 of the compass data processor 4 displays the map information Z and also the arbitrary destination G and the starting spot S, the coordinate data of which are known are set up. By the so-called compass method for obtaining the relative positional relation (distance data and azimuth data) between the starting spot S or prescribed spot of newly known spot based on the starting spot S and the present position, the coordinate data of the present position is calculated, and based on this data the navigation information for travelling to the destination G is displayed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation system for moving to a target point, a navigation device, and a recording medium recording a navigation program.

  Conventionally, as a navigation system for moving to a target point, there is a system using a GPS (Global Positioning System) that can receive radio waves transmitted from a plurality of satellites and detect a position at a predetermined point (for example, Patent Document 1).

  In a navigation system using GPS, for example, radio waves transmitted from a plurality of (four or more) satellites are received by a GPS receiver at the same time at a predetermined point, and the GPS receiver is based on the distance between the satellite and the GPS receiver. The coordinate data at a predetermined point is acquired by specifying the position of. Based on this, the user's arrival at the target point is assisted while displaying the distance between the current point and the target point that changes every moment as the user moves on the map.

In recent years, such a navigation system is required in order to reach a survey point even in a survey field for surveying forests and the like.
JP 2004-28916 A

  However, in a navigation system using GPS, coordinate data may not be acquired depending on natural conditions or satellite conditions. In particular, it is difficult to receive good radio waves from satellites in the forest area because trees become obstacles. As a result, the navigation system using GPS has a problem that it cannot be used in areas where GPS is difficult to use such as forests.

  The present invention has been made in view of such problems, and its purpose is to record a navigation system, a navigation device, and a navigation program for moving to a target point in an area where GPS is difficult to use. It is to provide a recording medium.

  In the following, each means suitable for solving the above-described problems will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. Target point setting means for setting a predetermined known point with known coordinate data as a target point;
Starting point setting means for setting a predetermined known point as a starting point;
Relative position acquisition means for acquiring at least the start point or distance data from a predetermined point that is a known point based on the start point to the current point and horizontal angle data of the current point with respect to the start point or the predetermined point When,
Absolute position acquisition means for calculating the coordinate data of the current point, based on the coordinate data of the start point or the predetermined point, and at least the distance data and horizontal angle data;
Navigation information acquisition means for obtaining navigation information from the current location to the target location based on the coordinate data of the current location and the coordinate data of the target location;
Data storage means capable of storing at least coordinate data and navigation information of the various points;
A navigation system comprising: display means capable of displaying at least the navigation information.

  According to the above means 1, a so-called point of acquisition of a relative position relationship (distance data and horizontal angle data) between a current point and a start point that is a known point or a predetermined point that is a known point based on the start point. By using a method such as compass surveying, the coordinate data of the current point can be calculated, and navigation information for moving to the target point can be acquired based on the coordinate data. As a result, navigation from the current location to the target location is possible even in regions where it is difficult to use GPS. The coordinate data is position data including at least latitude / longitude information. That is, a point where coordinate data (latitude / longitude information, etc.) has already been acquired with reference to a map or using GPS or a surveying instrument is a known point. The same applies to the following means, but when moving while measuring the distance and horizontal angle of the next moving point (hereinafter referred to as a route point) from the above starting point, etc., the distance or horizontal angle of the route point is measured. The above starting point, which is the point where the positioner who measures the current position, can be viewed as the current point, so even if the word “current point” is replaced with the word “route point” in the above means, the above point The function of the means does not change, and there is no problem. As horizontal angles (horizontal angle data / horizontal angle information), for example, azimuth angles (azimuth angle data / azimuth angle information), direction angles (direction angle data / direction angle information), interior angles (interior angle data / interior angle information), etc. Is mentioned.

  Mean 2. The navigation information acquisition means obtains at least distance information from the current location to the target location and horizontal angle information of the target location based on the current location as the navigation information. The navigation system described in.

  According to the above means 2, navigation is performed based on at least distance information and horizontal angle information. Therefore, for example, compared with the case where the route information to the target point is displayed on the map information as the navigation information, the control can be simplified and the data capacity can be reduced. Of course, when altitude information is included in the coordinate data, the height difference data from the predetermined point to the current point is acquired by the relative position acquiring unit, so that the navigation information acquiring unit can obtain the height difference from the current point to the target point. Acquire 3D navigation information including information.

Means 3. Comprising map information storage means for storing map information;
The navigation system according to means 1 or 2, wherein the display means can display the map information and can display the various points according to the displayed map information.

  According to the means 3, by displaying the map information and various points, it becomes easy to grasp the navigation information and the geographical situation, and the convenience can be improved.

  Means 4. 4. The navigation system according to any one of means 1 to 3, further comprising an input means capable of designating a predetermined point.

  According to the means 4, for example, it is possible to specify a predetermined point by inputting a numerical value of coordinate data, or to specify a predetermined point on the displayed map information, so that convenience can be improved. . In this case, the target point setting unit and the start point setting unit set the point designated by the input unit as the start point and the target point.

Means 5. GPS data acquisition means for acquiring coordinate data of a predetermined point from GPS,
The navigation system according to any one of means 1 to 4, wherein the start point setting means is configured to be able to set a point corresponding to coordinate data acquired from the GPS as the start point.

  According to the above means 5, in a place or situation where GPS can be used, it is relatively easy to use GPS to perform the operation of a predetermined point without performing work such as compass surveying to acquire distance data and horizontal angle data. Coordinate data can be acquired. As a result, convenience can be improved.

Means 6. The relative position acquisition means includes at least distance measurement means for measuring a distance and angle measurement means for measuring a horizontal angle,
The navigation system according to any one of means 1 to 5, wherein distance data and horizontal angle data measured by the distance measuring means and the angle measuring means are acquired.

  According to the means 6, the navigation system can be realized relatively easily by means used in conventional compass surveying, such as distance measuring means and angle measuring means. Various surveying devices can be considered as the distance measuring means and the angle measuring means. For example, a tape measure as a distance measuring means, a laser range finder having an azimuth measuring function as an angle measuring means, a light wave distance meter as a distance measuring means, a total station having an internal angle measuring function as an angle measuring means, etc. Is mentioned.

Mean 7 A determination means for determining whether or not the current location is within a predetermined range from the target location;
The navigation system according to any one of means 1 to 6, wherein when the current location falls within a predetermined range from the target location, the fact is notified or the navigation is terminated.

  According to the means 7, it is easy to grasp that the user has approached the target point, and convenience can be improved.

Means 8. Target point setting means for setting a predetermined known point with known coordinate data as a target point;
Starting point setting means for setting a predetermined known point as a starting point;
Relative position acquisition means for acquiring at least the start point or distance data from a predetermined point that is a known point based on the start point to the current point and horizontal angle data of the current point with respect to the start point or the predetermined point When,
Absolute position acquisition means for calculating the coordinate data of the current point, based on the coordinate data of the start point or the predetermined point, and at least the distance data and horizontal angle data;
Navigation information acquisition means for obtaining navigation information from the current location to the target location based on the coordinate data of the current location and the coordinate data of the target location;
Data storage means capable of storing at least coordinate data and navigation information of the various points;
A navigation device comprising: at least display means capable of displaying the navigation information.

  According to the means 8, the same effect as the means 1 can be obtained.

  Means 9. The navigation information acquisition means obtains at least distance information from the current location to the target location and horizontal angle information of the target location based on the current location as the navigation information. The navigation device described in 1.

  According to the means 9, the same effect as that of the means 2 is obtained.

Means 10. Comprising map information storage means for storing map information;
The navigation device according to claim 8 or 9, wherein the display means can display the map information and can display the various points in accordance with the displayed map information.

  According to the means 10, the same effect as the means 3 can be obtained.

  Means 11. The navigation apparatus according to any one of means 8 to 10, further comprising an input means capable of designating a predetermined point.

  According to the means 11, the same effects as the means 4 can be obtained.

Means 12. GPS data receiving means for receiving coordinate data of a predetermined point transmitted from a GPS receiver that measures its position based on radio waves from a plurality of GPS satellites,
The navigation device according to any one of means 8 to 11, wherein the start point setting means is configured to be able to set a point corresponding to the received coordinate data as the start point.

  According to the means 12, the same operation and effect as the means 5 are achieved. In this case, a conventional GPS receiver can be used, and navigation can be realized at a lower cost.

Means 13. It includes GPS data acquisition means for positioning its own position based on radio waves from a plurality of GPS satellites and acquiring coordinate data of a predetermined point,
The navigation device according to any one of means 8 to 11, wherein the start point setting means is configured to be able to set a point corresponding to coordinate data acquired from the GPS as the start point.

  According to the means 13, the same effect as that of the means 5 is achieved. In this case, it is possible to reduce the trouble of separately carrying the GPS receiver by adopting a configuration in which the GPS receiving function is integrated.

  Means 14. The relative position acquisition means includes distance data transmitted from a predetermined distance measuring means for measuring a distance from the start point or the predetermined point to the current point, and the current point relative to the start point or the predetermined point. 14. The navigation apparatus according to any one of means 8 to 13, wherein the navigation apparatus receives and acquires horizontal angle data transmitted from a predetermined angle measuring means for measuring a horizontal angle.

  According to the means 14, the same effect as that of the means 6 is obtained. Conventional distance measuring means and angle measuring means can be used, and navigation can be realized at a lower cost.

Means 15. The relative position acquisition means includes at least distance measurement means for measuring a distance and angle measurement means for measuring a horizontal angle,
14. The navigation apparatus according to any one of means 8 to 13, wherein distance data and horizontal angle data measured by the distance measuring means and the angle measuring means are acquired.

  According to the means 15, the same effect as that of the means 6 is obtained. The functions of the distance measuring means and the angle measuring means are integrated, and the trouble of separately carrying the distance measuring means and the angle measuring means can be reduced.

Means 16. A determination means for determining whether or not the current location is within a predetermined range from the target location;
The navigation device according to any one of means 8 to 15, wherein when the current location falls within a predetermined range from the target location, the fact is notified or the navigation is terminated.

  According to the means 16, the same effect as that of the means 7 is achieved.

Means 17. A procedure for setting a predetermined known point with known coordinate data as a target point;
A procedure for setting a predetermined known point as a starting point;
A procedure for obtaining at least the starting point or distance data from a predetermined point that is a known point based on the starting point to the current point, and horizontal angle data of the current point with respect to the starting point or the predetermined point;
A procedure for calculating the coordinate data of the current point based on the coordinate data of the start point or the predetermined point and at least the distance data and horizontal angle data;
A procedure for obtaining navigation information from the current point to the target point based on the coordinate data of the current point and the coordinate data of the target point;
A procedure for storing at least the coordinate data and navigation information of the various points in a predetermined data storage means;
A recording medium recording a program for executing at least a procedure for displaying the navigation information on a predetermined display means.

  According to the means 17, the same effects as those of the means 1 can be obtained.

  Means 18. 18. The recording medium according to claim 17, wherein as the navigation information, at least distance information from the current location to the target location and horizontal angle information of the target location based on the current location are obtained.

  According to the means 18, the same effect as that of the means 2 is obtained.

Means 19. Displaying the map information stored in the predetermined map information storage means on the display means;
The recording medium of the means 17 or 18 which recorded the program for performing the procedure which displays the said various points according to the said displayed map information.

  According to the means 19, the same effect as that of the means 3 is obtained.

  Means 20. The recording medium according to any one of means 17 to 19, which records a program for executing a procedure for designating a predetermined point by a predetermined input means.

  According to the means 20, the same effects as the means 4 can be obtained.

Means 21. A procedure for receiving coordinate data of a predetermined point transmitted from a GPS receiver that measures its position based on radio waves from a plurality of GPS satellites;
The recording medium according to any one of means 17 to 20, which records a program for executing a procedure for setting a point corresponding to the received coordinate data as the start point.

  According to the means 21, the same effect as that of the means 12 is achieved.

Means 22. A procedure for measuring the position of itself based on radio waves from a plurality of GPS satellites and acquiring coordinate data of a predetermined point;
The recording medium according to any one of means 17 to 20, which records a program for executing a procedure for setting a point corresponding to coordinate data acquired from the GPS as the start point.

  According to the means 22, the same operational effects as the means 13 can be obtained.

  Means 23. Distance data transmitted from a predetermined distance measuring means for measuring a distance from the start point or the predetermined point to the current point, and a predetermined angle for measuring a horizontal angle of the current point with respect to the start point or the predetermined point 23. A recording medium according to any one of means 17 to 22, which records a program for executing a procedure for receiving horizontal angle data transmitted from an angle measuring means.

  According to the means 23, the same operational effects as the means 14 can be obtained.

Means 24. Measuring the distance from the starting point or the predetermined point to the current point;
23. A recording medium according to any one of means 17 to 22, which records a program for executing a procedure for measuring a horizontal angle of the current point relative to the start point or the predetermined point.

  According to the means 24, the same effect as that of the means 15 is achieved.

Means 25. A procedure for determining whether the current location is within a predetermined range from the target location;
The recording according to any one of means 17 to 24, wherein a program for executing a procedure for notifying that or a procedure for ending navigation when the current location is within a predetermined range from the target location is recorded. Medium.

  According to the said means 25, there exists an effect similar to the said means 7.

  Hereinafter, an embodiment of a navigation system using a compass survey will be described with reference to the drawings.

  As shown in FIG. 1, the navigation system 1 in this embodiment is comprised from the GPS receiver 2, the surveying instrument 3, and the compass data processing apparatus 4 as a navigation apparatus.

  The GPS receiver 2 has an antenna for receiving radio waves from a plurality of GPS satellites, collects radio waves at predetermined intervals (for example, at intervals of 1 second) via the antennas, measures its position, and coordinates thereof. Data is transmitted to the compass data processing device 4. Note that the coordinate data in the present embodiment is absolute position data including latitude / longitude information, plane right-angle XY coordinate information, and the like.

  The surveying instrument 3 is a laser range finder with a built-in compass that measures the distance using laser light and measures the magnetic north reference azimuth. More specifically, the laser beam is output from a known point, the laser beam reflected by the reflector placed at the survey point is received by the light receiving unit, and the known point and the survey are determined from the phase difference of the laser beam at the time of output and input. While measuring the distance to the point, the compass measures the azimuth angle of the survey point with respect to the known point. Then, distance data and azimuth data as compass survey data (relative position data) measured in this way are transmitted to the compass data processing device 4. The surveying instrument 3 constitutes distance measuring means and angle measuring means in the present embodiment. The azimuth angle (azimuth angle data) corresponds to the horizontal angle (horizontal angle data) in the present embodiment.

  The compass data processing device 4 is a portable information terminal (so-called PDA), a GPS receiver 5 as GPS data receiving means capable of receiving coordinate data from the GPS receiver 2, and distance data and azimuth from the surveying instrument 3. Survey receiving unit 6 as a relative position acquisition unit capable of receiving data, storage unit 7 storing various data and map information, and display unit 8 as a display unit capable of displaying map information and navigation information The input unit 9 can be input by a user, and the control unit 10 controls the input unit 9. In the present embodiment, the GPS receiver 2 and the GPS receiver 5, and the surveying instrument 3 and the survey receiver 6 are connected via a predetermined serial cable. From the viewpoint of the system, the GPS receiver 2 and the GPS receiver 5 constitute the GPS data acquisition means in the present embodiment, and the surveying instrument 3 and the survey receiver 6 constitute the relative position acquisition means. I can say that. In addition, the control unit 10 constitutes a target point setting unit, a start point setting unit, a navigation information acquisition unit, and a determination unit in the present embodiment.

  The storage unit 7 stores various data such as coordinate data of various points, distance data, azimuth angle data, and navigation information as needed, and stores map information and the like in advance. That is, the memory | storage part 7 comprises the data storage means and map information storage means in this embodiment.

  Moreover, the input part 9 is comprised by the transparent touch panel (pressure sensitive sheet) stuck on the display part 8 (for example, liquid crystal panel). And the coordinate point on the pressed touch panel is recognized by the control part 10 by pressing the said touch panel with a pointing device etc.

  Next, the flow of processing in the navigation system 1 and the compass data processing device 4 configured as described above will be described with reference to the flowchart of FIG.

  As shown in FIG. 2, the compass data processing device 4 first reads the map information Z from the storage unit 7 and displays it on the display unit 8 in step S101 (see FIG. 3).

  Next, in step S102, a target point is set as a target point G (see FIG. 3). Here, an example of a method for setting the target point G will be described. First, a target point is designated on the map information Z (input unit 9) displayed on the display unit 8 by a pointing device or the like. Then, the coordinate data of the designated point is acquired by referring to the map information Z, and stored in the storage unit 7 as the coordinate data of the target point G. That is, based on the map information Z, a predetermined known point with known coordinate data is designated as the target point G. When the setting of the target point G is completed, the target point G is displayed on the display unit 8 as shown in FIG. The processing function of step S102 particularly constitutes the target point setting means in the present embodiment.

  In step S103, the coordinate data measured by the GPS receiver 2 is received by the GPS receiver 5, and this coordinate data is stored in the storage unit 7 as coordinate data of the start point S (see FIG. 3). Thereby, the point corresponding to the received coordinate data is set as the start point S, and the start point S is displayed on the display unit 8 as shown in FIG. The processing function of step S103 particularly constitutes the starting point setting means in the present embodiment.

  In step S104, the start point S is registered as the current point. Since the start point S is not moved from the start point S when the start point S is set, the start point S is registered as the current point. As a result, the coordinate data of the start point S, which is a known point, is stored in the storage unit 7 as the coordinate data of the current point.

  In step S105, navigation information from the current point to the target point G is obtained based on the coordinate data of the current point and the coordinate data of the target point G, and the navigation information is stored in the storage unit 7. In the present embodiment, distance information from the current location to the target location G and azimuth angle information of the target location G based on the current location are calculated as navigation information. The processing function of step S105 particularly constitutes navigation information acquisition means in the present embodiment. The azimuth angle information corresponds to the horizontal angle information in the present embodiment.

  In subsequent step S106, the distance information to the target point G and the azimuth angle information, which are navigation information, are displayed on the display unit 8. As shown in FIG. 3B and the like, a display area L1 for displaying distance information and a display area L2 for displaying azimuth angle information are provided on the upper left of the display unit 8. For example, in FIG. 3B, the distance information is “138” m and the azimuth angle information is “77” degrees. The user can move to the target point G with reference to this navigation information.

  In a succeeding step S107, it is determined whether or not the registered current point is within a preset setting range (in the present embodiment, within a radius of 2.5 m) from the target point G. The processing function in step S107 particularly constitutes the discrimination means in this embodiment. If it is determined that the current location is within the set range from the target location G, the navigation is terminated.

  On the other hand, when it is determined that the current location is not within the set range from the target location G, the user needs to move closer to the target location G, and therefore moves with reference to the navigation information. In step S108, it is determined whether or not the GPS receiver 2 can receive radio waves from the GPS satellite at the moving point (route point). If it is determined that reception is possible, the processes in steps S103 to S107 are repeated. That is, at a point where coordinate data can be acquired from GPS, the point is always set as the start point S.

  On the other hand, if it is determined that reception is impossible, in step S109, compass survey data of the moving point (route point) is acquired with reference to the registered current point. More specifically, by performing a compass survey using the surveying instrument 3, a moving point (for example, a registered current point) from a starting point S or a surveying point that is a known point based on the starting point S ( The distance to a new current survey point) and the azimuth angle of the latest survey point with respect to the start point S or a known survey point are measured. Then, the distance data and the azimuth angle data obtained by the surveying are received from the surveying instrument 3 and stored in the storage unit 7. Note that the compass survey data acquired at each survey point is sequentially stored in time series. The processing function in step S109 particularly constitutes a relative position acquisition unit in the present embodiment.

  In the subsequent step S110, the latest coordinate data of the survey point is calculated based on the coordinate data of the start point S or the known survey point, the distance data, and the azimuth data. The processing function of step S110 particularly constitutes an absolute position acquisition unit in the present embodiment.

  In step S111, the coordinate data of the latest survey point is stored in the storage unit 7 as the coordinate data of the current point, and the latest survey point is registered as the current point. Thereafter, the process proceeds to step S105. Accordingly, navigation information from the new current point to the target point G is obtained (step S105), and distance information and azimuth angle information to the target point G, which is navigation information, are displayed on the display unit 8 (step S106).

  Next, a display mode and a navigation procedure in the display unit 8 will be described with reference to FIG. The map information Z is displayed with latitude on the vertical axis and longitude on the horizontal axis.

  When the target point G is set as described above, the target point G is displayed with the “flag” mark on the map information Z as shown in FIG. Further, around the target point G, concentric circles F1 and F2 centering on the target point G are displayed. The concentric circles F1 and F2 are circles corresponding to a radius of 2.5 m and a radius of 10 m around the target point G, respectively. The range defined by the concentric circle F1 corresponds to the predetermined range in the determination process in step S107.

  Further, when the start point S is set, the start point S is displayed with “x” marks on the map information Z as shown in FIG. Subsequently, the distance information to the target point G and the azimuth angle information, which are navigation information, are displayed on the display unit 8. In FIG. 3B, “138” m is displayed in the distance information display area L1, and “77” degrees are displayed in the azimuth angle information display area L2.

  Then, the user proceeds toward the target point G with reference to the navigation information. However, since there are some points that cannot go straight toward the target point G in forests or the like, the user proceeds while bypassing a point that is difficult to go straight on. For example, as shown in FIG. 3C, the user proceeds from the start point S to the point P1, from the point P1 to the point P2, and from the point P2 to the point P3. At this time, the user conducts a compass survey and obtains coordinate data of each of the points P1, P2, P3, and confirms the current location where the user is present, while providing new navigation information for each of the points P1, P2, P3. Acquire and determine the new direction. In FIG. 3C, the already surveyed points (surveying points) P1 and P2 are displayed as “white circles”, and the latest surveying point, that is, the point P3 registered as the current point is displayed as “black circles”. Has been. Then, distance information “89” m and azimuth angle information “82” degrees are displayed as navigation information at the current point P3.

  Further, as shown in FIG. 3 (d), when the vehicle continues to proceed from the point P3 to the points P4, P5, P6, P7, P8, P9 and reaches the radius within 10 m (within the concentric circle F2) from the target point G, the navigation information In accordance with the display (step S106), the display unit 8 notifies that the target point G has been approached. Instead of this, a sound generating means such as a speaker (not shown) may be provided and notified. Further, when the radius reaches within 2.5 m (within the concentric circle F1) from the target point G, the navigation is terminated.

  As described above in detail, the relative position relationship (distance data and azimuth angle data) between the current point and the start point S that is a known point or a predetermined point that is a known point based on the start point S is acquired. The so-called compass surveying method can be used to calculate the coordinate data of the current location and acquire navigation information for moving to the target location G based on the coordinate data. As a result, navigation from the current location to the target location G is possible even in regions where it is difficult to use GPS.

  In addition, since the point corresponding to the coordinate data acquired from the GPS can be set as the start point S, the work such as the compass surveying for acquiring the distance data and the azimuth angle data in the point or the situation where the GPS can be used. The coordinate data of a predetermined point can be acquired relatively easily using GPS without performing the above.

  Furthermore, a navigation system can be realized relatively easily using the surveying instrument 3 used in conventional compass surveying and the like.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) The navigation system 1 in the above embodiment includes a GPS receiver 2, a surveying instrument 3, and a compass data processing device 4 as a navigation device. The navigation system and the navigation device are not limited to the above embodiment. For example, the present invention may be applied to a navigation system or a navigation apparatus that travels from a known point to a target point only by compass surveying without using GPS. As an application example of the navigation system (navigation device), for example, a configuration in which the GPS receiver 2 and the GPS receiving unit 5 are omitted from the configuration of the above-described embodiment can be given. Further, the present invention can be applied to a compass data processing device having at least one function of a GPS receiver and a surveying instrument, a surveying instrument capable of realizing the navigation, a GPS receiver, and the like. Of course, the present invention can be applied to a navigation program for realizing the navigation and a recording medium on which the navigation program is recorded.

  (B) Although the GPS receiver 2 in the above embodiment is of a type with a built-in antenna, of course, a GPS receiver with a separate antenna may be adopted.

  (C) In the above embodiment, a portable information terminal is employed as the compass data processing device 4. For example, a notebook personal computer or the like may be employed. Of course, instead of the input unit 8 of the touch panel, input means such as a mouse or a keyboard may be employed.

  (D) In the above embodiment, a laser range finder with a built-in compass is adopted as the surveying instrument 3. For example, a total station or the like may be employed. Further, the distance measuring means and the angle measuring means may be separated. For example, the surveying instrument 3 and the survey receiving unit 6 are omitted from the configuration of the above embodiment, and surveying is performed using a tape measure as a distance measuring unit and a compass as an angle measuring unit, and the compass survey data (distance data and azimuth angle). Data) may be input from a predetermined input unit. In the above embodiment, the azimuth angle (azimuth angle data / azimuth angle information) is adopted as the horizontal angle (horizontal angle data / horizontal angle information). Direction angle information) and interior angles (inner angle data / inner angle information) may be adopted.

  (E) In the above embodiment, the GPS receiver 2 and the GPS receiver 5, and the surveying instrument 3 and the survey receiver 6 are connected via a predetermined serial cable. However, the present invention is not limited to this, and other types of cables may be used for connection. Further, not limited to wired communication, the GPS receiver 2 and the GPS receiver 5, and the surveying instrument 3 and the survey receiver 6 may be configured to transmit and receive data wirelessly. Examples of wireless include IrDA specifications using infrared and Bluetooth specifications. Further, a configuration in which a medium such as a cartridge having a GPS receiving function can be attached to and detached from the compass data processing device or the like may be employed.

  (F) In the said embodiment, it is comprised so that the navigation information consisting of distance information and azimuth angle information may be displayed based on the coordinate data consisting of latitude / longitude information. Not limited to this, altitude information is included in the coordinate data, and by acquiring elevation difference data from a predetermined point to the current location as compass survey data, a three-dimensional information including elevation difference information from the current location to the target location G is obtained. Navigation information may be displayed. Moreover, it is good also as a structure which displays the route information to the target point G on the map information Z as navigation information. Conversely, it is possible to omit the function of displaying the map information Z and perform navigation using only numerical information.

  (G) In the above embodiment, a target point is specified by a pointing device or the like on the map information Z (input unit 9) displayed on the display unit 8, and the coordinate data of the specified point is referred to the map information Z. The coordinate data of the target point G is acquired by acquiring together. In addition, the coordinate data measured by the GPS receiver 2 is received by the GPS receiver 5, and this coordinate data is acquired as the coordinate data of the start point S. The acquisition method of the coordinate data of the target point G and the start point S is not limited to this, for example, a method of acquiring coordinates by reading coordinates from a GPS receiver or a map and inputting the numerical values from a predetermined input means, A method of reading existing survey data and selecting a predetermined point from known survey points displayed on the display unit may be adopted.

  (H) In the above embodiment, the navigation is automatically terminated when it reaches the predetermined range from the target point G. However, the present invention is not limited to this. Good.

It is a block diagram which shows the structure of the navigation system in one Embodiment. It is a flowchart for demonstrating the flow of a process of a navigation system (compass data processing apparatus). (A)-(d) is a schematic diagram for demonstrating the display mode of a display part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Navigation system, 2 ... GPS receiver, 3 ... Surveying equipment, 4 ... Compass data processing apparatus as navigation apparatus, 5 ... GPS receiving part as GPS data receiving means, 6 ... Surveying receiving part as relative position acquisition means 6, 7 ... Data storage means, storage section as map information storage means, 8 ... display section as display means, 9 ... input section as input means, 10 ... target point setting means, start point setting means, navigation information acquisition Means, control unit as discrimination means, F1, F2 ... concentric circles, L1, L2 ... display area, G ... target point, S ... start point, Z ... map information.

Claims (16)

Target point setting means for setting a predetermined known point with known coordinate data as a target point;
Starting point setting means for setting a predetermined known point as a starting point;
Relative position acquisition means for acquiring at least the start point or distance data from a predetermined point that is a known point based on the start point to the current point and horizontal angle data of the current point with respect to the start point or the predetermined point When,
Absolute position acquisition means for calculating the coordinate data of the current point, based on the coordinate data of the start point or the predetermined point, and at least the distance data and horizontal angle data;
Navigation information acquisition means for obtaining navigation information from the current location to the target location based on the coordinate data of the current location and the coordinate data of the target location;
Data storage means capable of storing at least coordinate data and navigation information of the various points;
A navigation system comprising: display means capable of displaying at least the navigation information. Comprising map information storage means for storing map information;
2. The navigation system according to claim 1, wherein the display unit can display the map information and can display the various points according to the displayed map information. GPS data acquisition means for acquiring coordinate data of a predetermined point from GPS,
The navigation system according to claim 1, wherein the start point setting unit is configured to be able to set a point corresponding to coordinate data acquired from the GPS as the start point. The relative position acquisition means includes at least distance measurement means for measuring a distance and angle measurement means for measuring a horizontal angle,
4. The navigation system according to claim 1, wherein distance data and horizontal angle data measured by the distance measuring means and the angle measuring means are acquired. Target point setting means for setting a predetermined known point with known coordinate data as a target point;
Starting point setting means for setting a predetermined known point as a starting point;
Relative position acquisition means for acquiring at least the start point or distance data from a predetermined point that is a known point based on the start point to the current point and horizontal angle data of the current point with respect to the start point or the predetermined point When,
Absolute position acquisition means for calculating the coordinate data of the current point, based on the coordinate data of the start point or the predetermined point, and at least the distance data and horizontal angle data;
Navigation information acquisition means for obtaining navigation information from the current location to the target location based on the coordinate data of the current location and the coordinate data of the target location;
Data storage means capable of storing at least coordinate data and navigation information of the various points;
A navigation device comprising: at least display means capable of displaying the navigation information. Comprising map information storage means for storing map information;
6. The navigation device according to claim 5, wherein the display unit can display the map information and can display the various points according to the displayed map information. GPS data receiving means for receiving coordinate data of a predetermined point transmitted from a GPS receiver that measures its position based on radio waves from a plurality of GPS satellites,
The navigation device according to claim 5 or 6, wherein the start point setting means is configured to be able to set a point corresponding to the received coordinate data as the start point. It includes GPS data acquisition means for positioning its own position based on radio waves from a plurality of GPS satellites and acquiring coordinate data of a predetermined point,
The navigation device according to claim 5 or 6, wherein the start point setting means is configured to be able to set a point corresponding to coordinate data acquired from the GPS as the start point.   The relative position acquisition means includes distance data transmitted from a predetermined distance measuring means for measuring a distance from the start point or the predetermined point to the current point, and the current point relative to the start point or the predetermined point. 9. The navigation apparatus according to claim 5, wherein horizontal angle data transmitted from a predetermined angle measuring means for measuring the horizontal angle is received and acquired. The relative position acquisition means includes at least distance measurement means for measuring a distance and angle measurement means for measuring a horizontal angle,
9. The navigation apparatus according to claim 5, wherein distance data and horizontal angle data measured by the distance measuring means and the angle measuring means are acquired. A procedure for setting a predetermined known point with known coordinate data as a target point;
A procedure for setting a predetermined known point as a starting point;
A procedure for obtaining at least the starting point or distance data from a predetermined point that is a known point based on the starting point to the current point, and horizontal angle data of the current point with respect to the starting point or the predetermined point;
A procedure for calculating the coordinate data of the current point based on the coordinate data of the start point or the predetermined point and at least the distance data and horizontal angle data;
A procedure for obtaining navigation information from the current point to the target point based on the coordinate data of the current point and the coordinate data of the target point;
A procedure for storing at least the coordinate data and navigation information of the various points in a predetermined data storage means;
A recording medium recording a program for executing at least a procedure for displaying the navigation information on a predetermined display means. Displaying the map information stored in the predetermined map information storage means on the display means;
The recording medium according to claim 11, wherein a program for executing a procedure for displaying the various points in accordance with the displayed map information is recorded. A procedure for receiving coordinate data of a predetermined point transmitted from a GPS receiver that measures its position based on radio waves from a plurality of GPS satellites;
The recording medium according to claim 11 or 12, wherein a program for executing a procedure for setting a point corresponding to the received coordinate data as the start point is recorded. A procedure for measuring the position of itself based on radio waves from a plurality of GPS satellites and acquiring coordinate data of a predetermined point;
The recording medium according to claim 11 or 12, wherein a program for executing a procedure for setting a point corresponding to coordinate data acquired from the GPS as the start point is recorded.   Distance data transmitted from a predetermined distance measuring means for measuring a distance from the start point or the predetermined point to the current point, and a predetermined angle for measuring a horizontal angle of the current point with respect to the start point or the predetermined point 15. The recording medium according to claim 11, wherein a program for executing a procedure for receiving horizontal angle data transmitted from the angle measuring means is recorded. Measuring the distance from the starting point or the predetermined point to the current point;
The recording medium according to claim 11, wherein a program for executing a procedure for measuring a horizontal angle of the current point with respect to the start point or the predetermined point is recorded.

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