JP4808129B2 - Trajectory display method and trajectory display device - Google Patents

Description

  The present invention relates to a trajectory display method and a trajectory display apparatus that acquire position information of a moving body in time series and display a trajectory based on the acquired position information. The present invention relates to a trajectory display method and a trajectory display device capable of grasping a moving state of a moving body over time.

  2. Description of the Related Art In recent years, a service has been provided that allows a child to carry a mobile phone equipped with a GPS (Global Positioning System) function in order to speed up crime prevention or subsequent countermeasures, and allows a guardian to grasp a child's current position and movement trajectory. Similarly, a service is provided in which a GPS device is mounted on a vehicle such as an automobile so that the current position and movement trajectory of the vehicle can be grasped when the vehicle is stolen.

  In the service as described above, the map image and the line segment connecting the positions of the moving objects corresponding to the passage of time on the map image are displayed on the display device. It is possible to grasp the current position and movement trajectory of a child, a vehicle or the like.

  However, in the configuration in which the moving track of the moving object is simply displayed based on the position information acquired by GPS, the moving track overlaps when the moving object reciprocates a plurality of times within a certain area. It becomes difficult to discriminate individual line segments representing the locus in correspondence with the passage of time.

Japanese Patent Application Laid-Open No. 2004-228561 has a means for detecting duplication of a line segment of a drawn graphic when the CAD system draws a graphic, and when the duplication of the line segment is detected, the line segment is duplicated. A technique for displaying a message to be displayed on a screen is disclosed.
JP-A-5-20402

  However, when displaying the movement trajectory, the object is not to grasp that the line segments indicating the trajectory overlap but to discriminate the overlapping line segments individually together with the time information corresponding to the line segment. This is because the line segment indicates the state of movement of the moving body, and it is necessary to grasp the state of movement over time.

  The technique disclosed in Patent Document 1 displays a message so that the user can recognize that a line segment of a drawn figure is duplicated, but the duplicate line segment corresponds to the line segment. It is not taken into account that the time information is discriminated together with the time information.

  The present invention has been made in view of such circumstances, and even when the movement locus of the moving object is dense, it is easy to see the image of the movement locus, and further, it is possible to reduce the load on the drawing process of the image of the movement locus. The main purpose is to provide a trajectory display method.

  Another object of the present invention is to provide a trajectory display method that makes it easy to see an image of a moving trajectory even when the moving trajectories of moving objects overlap and further reduces the load on the drawing process of the image of the moving trajectory. It is in.

  Another object of the present invention is to provide a trajectory display method capable of grasping that the moving body has been stagnant when it has stopped.

  Another object of the present invention is to provide a trajectory display method capable of grasping the movement situation with respect to the passage of time.

  Another object of the present invention is to provide a trajectory display device that makes it easy to see the image of a moving trajectory of a moving object and further reduces the load of drawing processing of an image showing the moving trajectory.

The trajectory display method according to the present invention acquires position information of a moving object in time series, and connects points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information. In the trajectory display method for displaying a trajectory, the position information is associated with time information indicating the time at which each position is acquired, and the position information indicated by the position information continuous in time series among the points is displayed. It is determined whether or not a plurality of line segments connecting any two corresponding points are in a dense state in which a predetermined number or more exist within a predetermined range on the map image. Time information associated with position information of both ends of each of the plurality of line segments replaced with the one figure is displayed by replacing with one figure including a plurality of line segments existing in the range. Displayed in the vicinity of the one figure, and the one figure When it is detected that the time information displayed in the vicinity is selected, and when it is detected that the time information is selected, a point corresponding to the position indicated by the position information associated with the selected time information is time-series The trajectory tied to is displayed superimposed on the one figure .

In the present invention , when a plurality of line segments connecting two points corresponding to positions indicated by position information continuous in time series of the mobile object are densely arranged on the map image, the plurality of line segments densely included are included. It is replaced with a figure and displayed. In the present invention, time information corresponding to the position information of the points at both ends of each line segment replaced with the one graphic is displayed in the vicinity of the replaced single graphic. Further, when the displayed time information is selected, a trajectory connecting points corresponding to the position indicated by the position information corresponding to the selected time information in time series is superimposed and displayed on one figure.

The trajectory display method according to the present invention acquires position information of a moving object in time series, and connects points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information. In the trajectory display method for displaying a trajectory, the position information is associated with time information indicating the time at which each position is acquired, and the position information indicated by the position information continuous in time series among the points is displayed. It is determined whether or not the line segment connecting any two corresponding points overlaps the line image connecting the two points corresponding to the positions indicated by the position information indicated by other time series on the map image. If it is determined, the time information associated with the position information of the ends of each of the plurality of line segments replaced with the one line segment is displayed by replacing the plurality of overlapping line segments with one line segment. Is displayed near the one line segment, and is displayed near the one line segment. When it is detected that the indicated time information is selected, and when it is detected that the time information is selected, the points corresponding to the positions indicated by the position information associated with the selected time information are connected in time series. An elliptical trajectory is displayed superimposed on the one line segment .

In the present invention , when a line segment connecting two points corresponding to positions indicated by position information continuous in time series of the moving object overlaps a line segment connecting the other two points on the map image, a plurality of overlapping line segments Is replaced with a single line. Further, in the present invention, time information corresponding to position information of points at both ends of each line segment replaced with the one line segment is displayed in the vicinity of the replaced line segment. Further, when the displayed time information is selected, a trajectory connecting points corresponding to the position indicated by the position information corresponding to the selected time information in time series is superimposed and displayed on one line segment. .

The trajectory display method according to the present invention acquires position information of a moving object in time series, and connects points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information. In the trajectory display method for displaying a trajectory, the position information is associated with time information indicating the time at which each position is acquired, and a point corresponding to the position indicated by any time series of position information is If it is determined whether it is within the predetermined distance, and if it is determined that it is within the predetermined distance, a plurality of points within the predetermined distance are integrated and displayed as one point of the predetermined shape, and the integrated points The time information associated with the position information is displayed near the one point, the time information displayed near the one point is detected, and the time information is selected. If it is, the position associated with the selected time information Information and displaying the connecting it trajectory in time series superimposed on the point of the one point corresponding to the position indicated.

In the present invention , when position information continuous in any time series of the moving object indicates a close position within a predetermined distance, a plurality of points within the predetermined distance are one point of a predetermined shape. It is integrated and displayed. In the present invention, time information corresponding to the position information of the integrated point is displayed in the vicinity of the replaced integrated point. Furthermore, when the displayed time information is selected, a trajectory connecting points corresponding to the position indicated by the position information corresponding to the selected time information in time series is superimposed and displayed on one point.

The trajectory display device according to the present invention includes a means for acquiring position information of a moving object in time series, and a point corresponding to the position indicated by the acquired position information of the moving object on a map image based on map information. The position information is associated with time information indicating the time at which each position is acquired, and is continuous in time series among the points. Density determination means for determining whether or not a plurality of line segments connecting any two points corresponding to the position indicated by the position information are in a dense state in which a predetermined number or more exist within a predetermined range on the map image; When the congestion determination means determines that it is in a dense state, the display unit replaces the graphic with one graphic including a plurality of line segments existing within the predetermined range, and the plurality of lines replaced with the single graphic For the position information of the points at both ends of each Means for displaying the attached time information in the vicinity of the one figure, means for detecting that the time information displayed in the vicinity of the one figure has been selected, and detecting that the time information has been selected In this case, the information processing apparatus includes: means for superimposing and displaying a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series on the one figure .

In the present invention , when a plurality of line segments connecting two points corresponding to positions indicated by position information continuous in time series of the mobile object are densely arranged on the map image, the plurality of line segments densely included are included. It is replaced with a figure and displayed. In the present invention, time information corresponding to the position information of the points at both ends of each line segment replaced with the one graphic is displayed in the vicinity of the replaced single graphic. Further, when the displayed time information is selected, a trajectory connecting points corresponding to the position indicated by the position information corresponding to the selected time information in time series is superimposed and displayed on one figure.

According to the present invention , when a plurality of line segments indicating the movement trajectory of the moving object are densely displayed, the line is replaced with a single graphic so that the user can grasp that the movement trajectory is dense and move. The trajectory is easy to see. Furthermore, since a drawing process for displaying a plurality of dense line segments is not necessary, the load on the drawing process can be reduced.

According to the present invention , when a plurality of line segments indicating the movement trajectory of the moving object overlap, it is replaced with one line and displayed, so that the user can grasp that the movement trajectory overlaps. The movement trajectory is easy to see. Furthermore, since the drawing process for displaying all the plurality of overlapping line segments is not necessary, the load on the drawing process can be reduced.

According to the present invention , when the point corresponding to the position indicated by the position information continuous in time series of the moving object is within the predetermined distance, the plurality of points within the predetermined distance are one point of the predetermined shape. Since they are displayed in an integrated manner, the user can grasp that the moving body has stopped, and the movement trajectory is easy to see.

According to the present invention, when the movement trajectory of the moving object is replaced with one figure, when replaced with one line segment, or when integrated with one point, both ends of each of the plurality of replaced line segments. Since the time information corresponding to each point or the integrated points is displayed in the vicinity of the figure, line, or point, the movement trajectory over time can be grasped. Also, time information can be selected, and only the movement trajectory corresponding to the selected time information is displayed, so that the user can grasp the movement status of the moving body over time.

According to the present invention , when a plurality of line segments indicating the movement trajectory of the moving object are densely substituted, a single figure is substituted. When the points to be indicated by the information are within a predetermined distance, the plurality of points are integrated and displayed as one point of a predetermined shape, so that the image of the movement trajectory can be easily viewed. In addition, since it is not necessary to perform a drawing process for displaying all of a plurality of dense line segments and a plurality of overlapping line segments, the load on the drawing process can be reduced.

  Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.

  FIG. 1 is an explanatory diagram conceptually showing a trajectory display system including a trajectory display device that implements a trajectory display method according to the present invention. The mobile phone 1 is equipped with a GPS function that is a target of the movement trajectory. The position of the mobile phone 1 is calculated by the mobile phone 1 based on time information transmitted from the GPS satellites 2a, 2b,. The position information of the calculation result is transmitted from the cellular phone 1 to the server device 3 via the antenna 51 and the packet switching network 5. The mobile phone 1 calculates a position based on time information from the GPS satellites 2 a, 2 b,... At regular intervals and transmits the position to the server device 3. The server device 3 stores the received position information indicating the position of the mobile phone 1 in association with the time information indicating the received time. In the figure, reference numeral 4 denotes a trajectory display device that implements the trajectory display method according to the present invention for displaying the movement trajectory of the mobile phone 1. The trajectory display device 4 is an information processing device such as a mobile phone or a PC (Personal Computer) having display means such as a liquid crystal panel, and can be connected to the server device 3 via the packet switching network 5 and the antenna 51. It is like that.

  The trajectory display device 4 is connected to the server device 3, acquires position information continuous in time series of the mobile phone 1 from the server device 3, and displays a movement trajectory of the mobile phone 1 based on the acquired position information.

  FIG. 2 is a block diagram showing the internal configuration of the mobile phone 1, the server device 3 and the locus display device 4 constituting the locus display system for implementing the locus display method of the present invention.

  The cellular phone 1 includes a control unit 10 that controls the operation of the cellular phone 1, a GPS receiving unit 11 that receives time information from GPS satellites 2 a, 2 b,. Part 12.

  The control unit 10 of the mobile phone 1 receives time information from radio waves of two types of frequencies transmitted from at least two of the GPS satellites 2a, 2b,. The control unit 10 of the mobile phone 1 calculates the position of the mobile phone 1 from the received time information, that is, the longitude and latitude (longitude and latitude). Based on the received time information, the mobile phone 1 calculates the distance from the positions of the GPS satellites 2a and 2b, for example, according to the principle of triangulation, and calculates the longitude and latitude. The control unit 10 of the mobile phone 1 transmits the longitude and latitude information obtained by the calculation to the server device 3 through the communication unit 12.

  The server device 3 includes a control unit 30 that controls the operation of the server device 3, a communication unit 31 that communicates with the mobile phone 1 and the trajectory display device 4, and a location information database that includes longitude and latitude information received from the mobile phone 1. And a storage unit 32 that stores (position information DB 321).

  The control unit 30 of the server device 3 stores position information including longitude and latitude information received together with time information indicating the received time each time the communication unit 31 receives the longitude and latitude information of the cellular phone 1 from the cellular phone 1. Stored in the position information DB 321 of the unit 32. The position information DB 321 stores position information that is continuous in time series for each mobile body such as the mobile phone 1. Further, the control unit 30 of the server device 3 receives the designation information for designating the moving body from the trajectory display device 4 by the communication unit 31. When the control unit 30 of the server device 3 receives the designation information, the communication unit 31 transmits the position information corresponding to the moving object indicated by the designation information to the trajectory display device 4 together with the time information associated with the position information. .

  The trajectory display device 4 includes a control unit 40 that controls the operation of the trajectory display device 4, a storage unit 41 that stores various information, and a temporary storage area 42 that stores information that is temporarily generated by the processing of the control unit 40. And a communication unit 43 connected to the packet switching network 5, an operation unit 44 having a mouse, a keyboard and the like, and a display unit 45 having a liquid crystal panel.

  The storage unit 41 stores a control program 411 for allowing a PC or a mobile phone to operate as the trajectory display device 4. The control unit 40 of the trajectory display device 4 reads the control program 411 from the storage unit 41 and operates to control the operation of each component unit such as the communication unit 43 and the display unit 45. Further, map information is stored in the storage unit 41, and the control unit 40 reads the map information from the storage unit 41, creates a map image based on the map information, and displays it on the display unit 45.

  The control unit 40 of the trajectory display device 4 transmits designation information for designating the mobile phone 1 that is the display target of the trajectory from the communication unit 43 to the server device 3. Further, the control unit 40 of the trajectory display device 4 receives the position information about the mobile phone 1 that is the display target of the trajectory and the time information associated with the position information from the server device 3 by the communication unit 43.

  The operation unit 44 is a user interface such as a mouse and a keyboard that accepts operations such as a mouse pointer movement on the screen, a click on a button displayed on the screen, and a character input. The control unit 40 of the trajectory display device 4 displays the coordinates indicated by the mouse pointer on the screen of the display unit 45, the movement distance of the mouse pointer, and the screen on the screen in response to a notification from the operation unit 44 that has received an operation by the user. Detects a click on the button that was clicked. In addition, the user can change the reduction ratio of the map image displayed on the display unit 45 by operating the operation unit 44.

  On the display unit 45, the control unit 40 draws a map image and a movement locus of the mobile phone 1 so as to be superimposed on the map image. In the present embodiment, an example in which the display unit 45 includes a liquid crystal panel is shown, but the present invention is not limited to a liquid crystal panel.

  FIG. 3 is an explanatory diagram illustrating an example of time-sequential position information about the mobile phone 1 acquired from the server device 3 by the control unit 40 of the trajectory display device 4 according to the embodiment. The server device 3 stores position information as shown in FIG. 3 as a table for each moving object every time it is received from the moving object such as the mobile phone 1. The control unit 40 of the trajectory display device 4 transmits designation information for designating a mobile body such as the mobile phone 1 to the server device 3, and the server device 3 that has received the designation information traces a table about the mobile body indicated by the designation information. It transmits to the display device 4.

  The example shown in FIG. 3 is a table of position information about the mobile phone 1 acquired by the control unit 40 of the trajectory display device 4 transmitting designation information for specifying the mobile phone 1 from the server device 3. The position information table includes the position information identification number (ID) and the longitude and latitude that are specific numerical values of the position information, as well as the position information recording date, the position information recording time, the moving distance, the moving time, and the moving speed. Information.

  The ID is a serial number after the mobile phone 1 starts calculating the position and the server device 3 starts receiving position information from the mobile phone 1. The longitude and latitude are specific information on the position of the mobile phone 1 transmitted from the mobile phone 1 to the server device 3. The recording date of the position information indicates the date when the control unit 30 of the server device 3 receives the longitude and latitude information from the mobile phone 1. The recording time of the position information indicates the time when the control unit 30 of the server device 3 receives longitude and latitude information from the mobile phone 1. The moving distance is a value obtained by calculating the distance moved from the position indicated by the longitude and latitude information received from the mobile phone 1 immediately before. The movement distance is calculated by the control unit 30 of the server device 3. The travel time indicates the difference from the time when the longitude and latitude information was received immediately before from the mobile phone 1. The calculation of the travel time is also performed by the control unit 30 of the server device 3. The moving speed is a result of dividing the calculated moving distance by the moving time. The control unit 30 of the server device 3 also calculates the moving speed. Note that the moving distance, the moving time, and the moving speed may be performed not by the control unit 30 of the server device 3 but by the control unit 40 of the trajectory display device 4 that has received information from the server device 3.

  In the trajectory display device 4 of the trajectory display system configured as described above, based on the position information continuous in time series of the mobile phone 1 obtained by receiving the position information table for the mobile phone 1 from the server device 3. A process in which the control unit 40 displays the movement locus of the mobile phone 1 on a map image based on the map information will be described.

  The control unit 40 of the trajectory display device 4 stores the acquired position information table in time series of the mobile phone 1 in the temporary storage area 42. The control unit 40 creates a map image based on the map information read from the storage unit 41, and according to the time indicated by the time information the point corresponding to the position indicated by the latitude and longitude of the position information with respect to the created map image. The movement trajectory is displayed in time series.

  In the locus display method according to the present invention, not only the movement locus is displayed by connecting points on the map image corresponding to the position indicated by the position information in time series, but also a plurality of lines in which the points are connected in time series. If the lines are densely packed, they are replaced with a single figure including a plurality of densely lined lines, and if a plurality of line segments overlap, they are replaced with one line. In addition, when the position of the moving body is not substantially changed, that is, when the distance between the points corresponding to the position indicated by the time-series continuous position information is within the predetermined distance, the moving body is integrated into one point of the predetermined shape. indicate.

  Therefore, the control unit 40 of the trajectory display device 4 that implements the trajectory display method according to the present invention, in the time information sequence table stored in the temporary storage area 42 in chronological order, that is, in ascending order of time information, The position information is read in ascending order of the serial number indicated by the ID. The control unit 40 of the trajectory display device 4 obtains a line segment obtained by connecting a point corresponding to the position indicated by the position information with respect to the read position information and a point corresponding to the position indicated by the position information of the previous serial number. However, it is determined and stored whether it is dense or overlapping with the line segment obtained by connecting the points corresponding to the positions indicated by other time-series position information. Further, it is determined and stored whether or not a point corresponding to the position indicated by the position information continuous in time series is within a predetermined distance. The control unit 40 of the trajectory display device 4 stores, as replacement / integrated information, a result of determination as to whether a plurality of line segments are densely or overlapped or whether a point corresponding to the position indicated by the position information is within a predetermined distance. Keep it.

  4 and 5 are flowcharts showing a processing procedure in which the control unit 40 of the trajectory display device 4 that executes the trajectory display method according to the present invention stores replacement / integration information.

  The control unit 40 of the trajectory display device 4 reads the position information about the mobile phone 1 acquired from the server device 3 and stored in the temporary storage area 42 in time series, that is, in the order of the serial number indicated by the ID (step S101). The read position information is stored in the temporary storage area 42 as end point position information (step S102). Next, the control unit 40 determines whether there is position information stored as position information of the starting point (step S103).

  When the control unit 40 determines that there is no position information stored as the position information of the start point (S103: NO), that is, when the position information with the first serial number is read in step S101, the control unit 40 stores the position information as the end point. The stored position information is stored as the position information of the starting point (step S104), and it is determined whether or not all the position information about the mobile phone 1 has been read (step S105).

  When the control unit 40 determines that all the position information about the mobile phone 1 has not been read (S105: NO), the control unit 40 returns the process to step S101, reads the position information of the next serial number, and continues the process.

  When the control unit 40 determines in step S103 that there is position information stored as the position information of the start point (S103: YES), the start point corresponding to the position indicated by the position information of the start point and the position information of the end point respectively. It is determined whether the distance between the terminal and the end point is within a predetermined distance (step S106). In step S106, whether or not the distance between the start point and the end point is within a predetermined distance is determined based on whether the movement distance stored together with the position information indicating the position read as the end point is a predetermined distance such as 30 m or less. Judgment by whether or not Of course, when the moving body is stopped and the moving distance is zero, it is determined that the distance is equal to or less than the predetermined distance. Further, the setting of the predetermined distance is changed according to the reduction ratio of the map image. For example, the predetermined distance is set to 30 m for a map image having a reduction ratio of 1/10000, and the predetermined distance is set to 15 m for a map image having a reduction ratio of 1/5000. The determination may be made based on whether or not the distance between the start point and the end point on the map image is equal to or less than a predetermined distance such as 8 pixels, or the start point and end point on the map image are, for example, a block of 8 pixels square. You may judge by whether it is settled in.

  When the control unit 40 determines that the distance between the start point and the end point is within a predetermined distance (S106: YES), the control unit 40 determines that the moving body is stagnant at this point in time, corresponding to the read position information. The stop flag shown is set to 1 (step S107), and the process proceeds to the next step S108. Specifically, the control unit 40 stores the value 1 as a stop flag in association with the position information of the end point.

  On the other hand, when the control unit 40 determines that the distance between the start point and the end point is not within the predetermined distance (S106: NO), the control unit 40 proceeds to the next step S108.

  The control unit 40 determines whether or not the line segment connecting the start point and the end point overlaps with other line segments (step S108). The control unit 40 stores line segments connecting the start point and the end point corresponding to the positions indicated by the start point position information and the end point position information read so far, and has the current start point and end point as diagonal lines. Judgment is made based on whether or not the overlap of the area of the rectangle and the rectangle having the start point and the end point read so far as diagonal lines is equal to or greater than a predetermined ratio. The determination as to whether the line segment connecting the start point and the end point overlaps with other line segments may be as follows. For the line segment connecting the current start point and the end point, and the line segment stored so far, the current start point is within the specified distance from the start point or end point of the previous line segment, and the current end point is You may judge by whether it is in the predetermined distance from the end point or start point of a line segment to. In the trajectory display method of the present invention, the method for determining whether or not a plurality of line segments overlap is not limited to the method exemplified in this embodiment.

  When the control unit 40 determines that the line segment connecting the start point and the end point overlaps with another line segment (S108: YES), the control unit 40 sets an overlap flag corresponding to the position information of the read end point (step S109). ), And proceeds to the next step S110. Specifically, the control unit 40 stores the value 1 as an overlap flag in association with the position information of the end point.

  On the other hand, when the control unit 40 determines that the line segment connecting the start point and the end point does not overlap with other line segments (S108: NO), the process proceeds to the next step S110.

  Next, the control unit 40 determines whether or not the line segment connecting the start point and the end point is crowded with other line segments (step S110). The control unit 40 stores line segments connecting the start point and the end point corresponding to the positions indicated by the position information of the start point and the position information of the end point read so far, and the number of intersections with these line segments is stored. Counting is performed, and if the counted value is equal to or greater than a predetermined number, it is determined that the objects are densely packed.

  The determination as to whether or not the line segment connecting the start point and the end point is dense with other line segments may be made as follows. It is determined whether or not the line segment connecting the start point and the end point intersects the line segment connecting the start point and the end point corresponding to the positions indicated by the position information of the start point and the position information of the end point read so far, It is determined whether or not the position information determined to intersect is continuous, that is, whether or not the position information assigned the previous serial number is also determined to intersect. When the position information determined to intersect is continuous, it is determined that the points indicated by the continuous position information are dense. In the trajectory display method of the present invention, the method for determining whether or not a line segment is crowded with a plurality of other line segments is not limited to the method exemplified in this embodiment.

  When the control unit 40 determines that the line segment connecting the start point and the end point is dense with other line segments (S110: YES), the control unit 40 sets a dense flag corresponding to the position information of the read end point ( Step S111), the process proceeds to the next step S104. Specifically, the control unit 40 stores 1 as the congestion flag in association with the position information of the end point. Note that the control unit 40 determines whether or not the line segment is crowded with other line segments by counting the number of intersections. Therefore, the control unit 40 does not set the crowd flag but collects the counted value. A variable indicating the degree may be stored in association with the position information. In this case, if the value stored as a variable indicating the degree of congestion is 1 or more, it indicates that the object is dense.

  On the other hand, when the control unit 40 determines that the line segment connecting the start point and the end point is not crowded with other line segments (S110: NO), the process proceeds to the next step S104.

  If the control unit 40 determines that all the position information about the mobile phone 1 has been read after the process of step S104 described above (S105: YES), the process ends.

  For determining whether or not the distance between the start point and the end point is within a predetermined distance in step S106, the difference between the time information corresponding to the start point position information and the time information corresponding to the end point position information. May be large. If the time information difference is large, such as 30 minutes, the mobile phone 1 may be moved to another point between the start point and the end point, so the distance between the start point and the end point is predetermined. Even if it is within the distance, it does not necessarily indicate that it has stopped. Accordingly, in determining whether or not the distance between the start point and the end point is within a predetermined distance in step S106, the difference between the time information corresponding to the position information of the start point and the time information corresponding to the position information of the end point is predetermined. The configuration may be performed only when the time difference is equal to or less than the above.

  The control unit 40 of the trajectory display device 4 determines whether the movement trajectory is dense or overlaps or is located within a predetermined distance based on the time-series continuous position information about the mobile phone 1 by the processing procedure as described above. The replacement / integration information indicating whether it is shown is stored. FIG. 6 is an explanatory diagram showing an example of replacement / integration information stored in the temporary storage area 42 of the trajectory display device 4 that implements the trajectory display method according to the present invention.

  In the example shown in FIG. 6, it is shown that a stop flag, a duplication flag, or a congestion flag is set for each of the position information of the serial numbers 00001 to 00001 and subsequent serial numbers shown in FIG. For example, as shown in FIG. 3, since the moving distance is 0 for the position information with the serial number indicated by ID of 00004 to 00007, in the example shown in FIG. 6, the position of the serial number indicated by ID is 00004 to 00007. It is shown that the stop flag is set for the information.

  Further, in the example shown in FIG. 6, it is shown that an overlap flag indicating that a plurality of line segments are overlapped is set for the position information with serial numbers 00003 to 0367 indicated by the ID. Similarly, it is shown that a dense flag indicating that a plurality of line segments are dense is set for the position information of serial numbers indicated by IDs 00005 to 00005 and 00005. When the number of intersections is indicated as described above, the stored value is a variable indicating the degree of congestion, and may be a number larger than one.

  Next, the control unit 40 of the trajectory display device 4 receives the position information for the position information indicating that it is crowded based on the replacement / integration information stored as shown in FIG. The position indicated by the position information for the position information indicating that the replacement / integration information stored in the graphic is replaced with a single figure that includes the point corresponding to the position indicated by The drawing process is performed by substituting one line segment connecting points corresponding to. In addition, when the stored replacement / integration information indicates that the point corresponding to the position indicated by the time-series position information is within a predetermined distance, that is, if the point indicates that the position is stopped, Drawing processing is performed by integrating a plurality of points in time series into one point.

  7 and 8 are flowcharts showing a processing procedure in which the control unit 40 of the trajectory display device 4 that performs the trajectory display method according to the present invention draws on the display unit 45 based on the replacement / integration information. Of the steps S201 to S214 described below, the processing content of steps S201 to S205 is the same as that of steps S101 to S105 of the processing procedure shown in FIGS. To do.

  When the control unit 40 of the trajectory display device 4 determines that there is position information stored as the position information of the start point (S203: YES), the replacement / integration information is read (step S206), and the position information of the end point is obtained. On the other hand, it is determined whether or not the stop flag is set (step S207). When the control unit 40 determines that the stop flag is set for the position information of the end point (S207: YES), it sets the line type of the drawing attribute to bold circle (step S208), and sets the drawing attribute that has been set. Thus, the movement locus is drawn (step S209). In this case, a point corresponding to the position indicated by the position information of the end point is drawn. Note that the predetermined shape indicating that the vehicle is stopped is not limited to a bold circle, and may be a square, a triangle, or the like as long as it can be discriminated.

  When it is determined that the stop flag is not set for the end point position information (S207: NO), the control unit 40 determines whether the duplication flag is set for the end point position information ( Step S210). When determining that the duplication flag is set for the position information of the end point (S210: YES), the control unit 40 sets the line type of the drawing attribute to a thick line (step S211), and sets the drawing attribute according to the set drawing attribute. A movement locus is drawn (S209), and the process proceeds to the next step S204.

  In this case, a line segment from a point corresponding to the position indicated by the position information of the starting point to a point corresponding to the position indicated by the position information of the end point is drawn with a bold line. In addition, when the position information in which the duplication flag is set is continuously stored, the point corresponding to the position indicated by the position information stored as the position information of the start point when the first position information is read, and the last It is preferable to perform the process of drawing a line segment connecting with a point corresponding to the position indicated by the position information stored as the position information of the end point when the position information is read out only when the last position information is read out. . At this time, it is preferable not to perform the drawing process for the position information other than the first and last position information in the continuous position information. In addition, in order to distinguish between overlapping line segments, instead of setting an overlap flag, a number assigned to each overlapping line segment is stored in association with each other, and each line segment to which the same number is allocated is stored. It may be replaced with one line segment.

  When the control unit 40 determines that the duplication flag is not set for the position information stored as the end point (S210: NO), the congestion flag is set for the position information stored as the end point. It is determined whether or not (step S212). If the control unit 40 determines that the congestion flag is set for the position information stored as the end point (S212: YES), it sets the line type of the drawing attribute to shaded (step S213), A movement trajectory is drawn with the set drawing attributes (S209), and the process proceeds to the next step S204.

  In this case, while the position information determined that the dense flag is set continues, each point corresponding to the position indicated by the position information is stored without performing the drawing process in step S209. In addition, when the position information for which the dense flag is set is interrupted, drawing is performed with a drawing attribute that includes, for example, a substantially oval shape that includes each point stored so far. To do.

  When the control unit 40 determines that the congestion flag is not set for the position information stored as the end point (S212: NO), the drawing attribute setting is set to a solid line (step S214). A movement trajectory is drawn based on the drawing attributes (S209), and the process proceeds to the next step S204. In this case, a line segment is drawn from a point corresponding to the position indicated by the position information stored as the start point to a point corresponding to the position indicated by the position information stored as the end point.

  If the control unit 40 determines that all the stored location information about the mobile phone 1 has been read (S205: YES), the process ends.

  7 and 8, the control unit 40 of the trajectory display device 4 reads the position information one by one, determines whether the stop flag, the duplicate flag, or the congestion flag is set, A drawing process is performed each time position information is read. However, the present invention is not limited to this, and the control unit 40 of the trajectory display device 4 reads the position information one by one, and draws the position information first without any stop flag, duplication flag, or congestion flag set. A configuration in which processing is performed may be used. In this case, next, the position information is read again one by one, and the drawing process is performed on the position information for which the stop flag is set. Next, the position information is read again one by one, and the end point corresponding to the position indicated by the first position information and the position indicated by the last position information in the position information group in which the overlap flag is continuously set are set. A drawing process for drawing a single line segment connecting the corresponding start points with a thick line is performed. Finally, the position information is read again one by one, and a graphic that includes a point corresponding to the position indicated by the continuous position information is drawn with respect to the position information for which the congestion flag is continuously set. Perform drawing processing. As a result, the process of reading the position information is repeated, but the effect of reducing the load on the drawing process can be obtained.

  The control unit 40 of the trajectory display device 4 performs the processing procedure shown in FIGS. 4, 5, 7, and 8 each time the operation unit 44 detects a trajectory display operation by the user. Further, the control unit 40 of the trajectory display device 4 performs whenever the operation unit 44 detects an operation of changing the reduction rate of the map image by the user. Depending on the reduction rate of the map image, each position information that has been determined to be dense, overlapping, or within a predetermined distance is not dense, not overlapping, or not within a predetermined distance. This is because it may be judged.

  By such a processing procedure, a portion where a plurality of line segments of the movement locus are densely displayed on the map image is displayed by being replaced with a single figure including those points, and a plurality of line segments of the movement locus are displayed. Are overlapped on the map image, they are replaced with one line and displayed. In addition, when a point corresponding to a position indicated by position information continuous in time series is within a predetermined distance on the map image, the points corresponding to the position indicated by the position information are integrated and displayed.

  9 and 10 are explanatory diagrams showing examples of the movement trajectory of the mobile phone 1 displayed on the display unit 45 of the trajectory display device 4 that implements the trajectory display method according to the present invention. For comparison, FIG. 9 shows an example in which a point corresponding to the position indicated by the position information acquired from the server device 3 is simply connected to the time information in chronological order without using the trajectory display method according to the present invention. Is shown. FIG. 10 shows an example of a movement locus displayed on the display unit 45 of the locus display device 4 that has implemented the locus display method according to the present invention.

In the example shown in FIG. 9, since the points corresponding to the times t ₃ , t ₄ ,..., T ₇ represent the same position, the point corresponding to the position indicated by the position information with respect to the time information is simply the time. When displaying in a series, it cannot be determined that the mobile phone 1 is stationary between times t _{3 and} t ₇ . This is because there is no difference from one point corresponding to time t _{2 and} it cannot be determined. As for the points corresponding to the times t ₃₁ , t ₃₂ ,..., T ₃₇ shown in FIG. 9, the line connecting the points corresponding to the times t ₃₁ and t ₃₂ , and the times t ₃₄ and t ₃₅ are shown. a line segment connecting the corresponding points, and a line segment connecting a point corresponding to the time t ₃₆ and time t ₃₇ are substantially overlapping. In addition, a plurality of line segments that connect points corresponding to times t ₅₃ , t ₅₄ ,..., T ₅₉ are dense together with a plurality of line segments that connect points corresponding to other time information. Difficult to distinguish.

In the example shown in FIG. 10, position information retention flag is set by the above-described processing procedure, i.e. the time t _3, t _4, ..., the point of one shape of a heavy circle for points corresponding to t ₇ And is displayed so that it can be distinguished. Thereby, the user can recognize that the point displayed in the shape of a bold circle indicates that the mobile phone 1 has stopped. A plurality of line segments connecting points corresponding to the times t ₃₁ , t ₃₂ ,..., T ₃₇ are replaced with one line and displayed with bold lines. Thereby, the user can recognize that the movement trajectory of the mobile phone 1 is overlapped with the line displayed in bold. A plurality of line segments connecting points corresponding to times t ₅₃ , t ₅₄ ,..., T ₅₉ are replaced with one figure and displayed by shading. Thereby, the user can recognize that the movement traces of the mobile phone 1 are dense in the figure displayed by shading and are difficult to discriminate.

  Next, on the screen of the display unit 45, the replacement is performed when the mouse pointer is overlaid by the user's operation on one figure, one line segment, or one point replaced with the line segment of the movement locus. A process of displaying time information in which position information of each point included in one created graphic, one line segment, or one integrated point is associated will be described.

7 and 8, the control unit 40 of the trajectory display device 4 preferably stores position information and time information corresponding to the position information for the replaced graphic. . Similarly, position information and time information corresponding to the position information are stored for the replaced line segment. Similarly, position information and time information corresponding to the position information are stored for one integrated point. For example, when a mouse pointer is over a certain figure, time information corresponding to the position information stored for the figure is immediately sorted and displayed. Each time it is detected that the mouse pointer is over a certain figure, the position information and the time information corresponding to the position information may be read from the position information DB 321, but the load increases, so the position information and the position information are supported The time information to be stored is stored. For example, when the points corresponding to times t ₃ , t ₄ ,..., T ₇ are integrated into one point as shown in FIG. time t _3, t _4, ..., the time information and the time t ₃ of t _7, t _4, ..., and stores the location information corresponding to t _7.

  11 and 12 show time information when the control unit 40 of the trajectory display device 4 that implements the trajectory display method according to the present invention has a mouse pointer over one figure, one line segment, or one point. It is a flowchart which shows the process sequence which displays.

  The control unit 40 of the trajectory display device 4 determines whether or not the mouse pointer is overlaid on the replaced graphic or line segment on the screen of the display unit 45 (step S301). The control unit 40 can detect whether or not the mouse pointer is overlapped with one figure or one line segment by the operation unit 44.

  When the control unit 40 determines that the mouse pointer does not overlap the replaced one figure or one line segment (S301: NO), it determines whether or not the mouse pointer overlaps the integrated one point. Judgment is made (step S302). If the control unit 40 determines in step S302 that the mouse pointer does not overlap with the integrated one point (S302: NO), the process returns to step S301, and the replaced one figure or one line segment is obtained. Wait until it is determined that the mouse pointer overlaps or the mouse pointer overlaps the integrated point.

  When it is determined in step S302 that the mouse pointer is over the integrated point (S302: YES), the control unit 40 stores the single point determined to be overlaid. Time information is read (step S303). Position information stored for one point determined to overlap may be read, and time information corresponding to the read position information may be read.

  The control unit 40 sorts the read time information in time series (step S304), displays the sorted time information on the screen of the display unit 45 (step S305), and ends the process. In this case, the control unit 40 displays the time information in the vicinity of the corresponding one point.

  On the other hand, if the control unit 40 determines in step S301 that the mouse pointer is over the replaced one figure or one line segment (S301: YES), the control unit 40 determines that the one figure or The time information stored for one line segment is read (step S306). The control unit 40 sorts the read time information in time series (step S307), and displays the sorted time information on the screen of the display unit 45 (step S308). In this case, the control unit 40 displays the time information by a menu display in the vicinity of the corresponding one figure or one line segment.

  The control unit 40 determines whether or not the time information displayed by the menu display has been selected (step S309). The time information displayed by the menu display can be selected by moving the mouse pointer by the operation unit 44 by the user. When it is determined that the time information is not selected (S309: NO), the control unit 40 returns the process to step S309 and waits until it is determined that the time information is selected. Note that the control unit 40 waits until it is determined that the time information has been selected, and the mouse pointer overlaid on the one graphic or one line segment has deviated from the one graphic or one line segment. If detected, the process may be terminated.

  When determining that the time information has been selected (S309: YES), the control unit 40 determines whether there are two or more selected time information (step S310).

  When the control unit 40 determines that the selected time information is two or more (S310: YES), the control unit 40 connects points corresponding to the positions indicated by the position information corresponding to the selected time information in time series. The movement trajectory is displayed superimposed on one figure or one line segment (step S311), and the process ends.

  When the control unit 40 determines that the selected time information is less than two, that is, one (S310: NO), the control unit 40 determines one point corresponding to the position indicated by the position information corresponding to the selected time information. Are superimposed on the figure or one line segment (step S312), and the process is terminated.

  FIG. 13 is a diagram illustrating an example in which time information is displayed in the vicinity of one point integrated and displayed on the screen of the display unit 45 of the trajectory display device 4 that implements the trajectory display method according to the present invention. FIG. FIG. 13 shows an example in which time information is displayed by steps S302 to S305 in the processing procedure of the control unit 40 of the trajectory display device 4 shown in FIGS. FIG. 13A shows a case where the mouse pointer does not overlap with one integrated point (S302: NO), and FIG. 13B shows that the mouse pointer overlaps with one integrated point. (S302: YES).

As shown in FIG. 13A, nothing is displayed when the mouse pointer does not overlap the integrated point. As shown in FIG. 13B, when the mouse pointer is overlapped with the integrated one point, the control unit 40 of the trajectory display device 4 detects this and stores it for the integrated one point. The time information t ₃ , t ₄ ,..., T ₇ is read and displayed. The user has that and retention was between retention of the cellular phone 1 the time t ₃ ~t ₇ by checking the time information stored with respect to one point as shown in FIG. 13 (b) The time t _{3 to} t ₇ can be grasped.

  FIG. 14 shows an example in which time information is displayed in the vicinity of one line segment that is replaced and displayed on the screen of the display unit 45 of the trajectory display device 4 that performs the trajectory display method according to the present invention. It is explanatory drawing. FIG. 14 shows an example in which time information is displayed by steps S301 and S306 to S312 in the processing procedure of the control unit 40 of the trajectory display device 4 shown in FIGS. FIG. 14A shows a case where the mouse pointer is over the replaced line segment (S301: YES), and FIG. 14B shows that the mouse pointer is over the replaced line segment. The case where one of the time information displayed by overlapping is selected (S310: NO) is shown. Further, FIG. 14C shows a case where a plurality of pieces of time information displayed when the mouse pointer overlaps the replaced line segment is selected (S310: YES).

As shown in FIG. 14A, when the mouse pointer is over the replaced line segment, the control unit 40 of the trajectory display device 4 detects this and relates to the replaced line segment. Time information t ₃₁ , t ₃₂ ,..., T ₃₇ is read and displayed. Further, as shown in FIG. 14 (b), when the time t ₃₅ of the time information display is selected by the user, the control unit 40 reads the position information corresponding to time information is selected, the position information A point corresponding to the position indicated by is drawn. The user can grasp the position of the mobile phone 1 with respect to the passage of time even when a plurality of overlapping line segments are replaced with one line and displayed. Furthermore, as shown in FIG. 14 (c), when the time t ₃₂ ~t ₃₄ of the time information display is selected by the user, the control unit 40 reads the position information corresponding to the time information selected The points corresponding to the positions indicated by the position information are connected in chronological order to draw the trajectory. Even when a plurality of overlapping line segments are replaced with one line and displayed, the user can grasp the movement status of the mobile phone 1 with respect to the elapse of time from time t _{32 to} t ₃₄ .

  FIG. 15 is a diagram illustrating an example in which time information is displayed in the vicinity of one graphic that is replaced and displayed on the screen of the display unit 45 of the trajectory display device 4 that implements the trajectory display method according to the present invention. FIG. FIG. 15 shows an example in which time information is displayed in steps S301 and S306 to S312 in the processing procedure of the control unit 40 shown in FIGS. FIG. 15A shows the case where the mouse pointer is over the replaced graphic (S301: YES), and FIGS. 15B and 15C show the case where the mouse is over the replaced graphic. A case where a plurality of pieces of time information displayed by overlapping the pointers are selected (S310: YES) is shown.

As shown in FIG. 15A, when the mouse pointer is over the replaced graphic, the control unit 40 of the trajectory display device 4 detects this and stores it for the replaced graphic. , T ₅₄ ,..., T ₅₉ are read and displayed. Also, when the time t ₅₄ ~t ₅₆ of the time information displayed as shown in FIG. 15 (b) is selected by the user, the control unit 40 corresponding to the time information t ₅₄ ~t ₅₆ selected The position information is read out, and points corresponding to the position indicated by the position information are connected in time series to draw the locus in an overlapping manner. The user also appears dense line group is substituted on one of the figures, it is possible to grasp the moving condition of the mobile telephone 1 over time of the time t ₅₄ ~t _56. Similarly, as shown in FIG. 15 (c), if the time information t ₅₆ ~t ₅₉ is selected by the user, the control unit 40 reads the position information corresponding to the time information t ₅₆ ~t ₅₉ selected, The points corresponding to the positions indicated by the position information are connected in time series, and the locus is superimposed and drawn. The user can grasp the moving condition of the mobile telephone 1 over time of the time t ₅₆ ~t _59.

  By the processing of the control unit 40 of the trajectory display device 4 as described above, the movement trajectory of the mobile phone 1 displayed on the screen included in the display unit 45 of the trajectory display device 4 is a collection of a plurality of line segments of the movement trajectory. In this case, it is replaced with a single figure for easy viewing. In addition, when a plurality of line segments in the movement locus overlap, the line is replaced with a single line segment so that it is easy to see. The point with respect to the position where the mobile phone 1 is stopped is displayed as being integrated with one point of a bold circle shape, so that it is easy to see. Furthermore, since the number of line segments or points to be drawn is reduced by replacement and integration, the burden of the drawing process of the control unit 40 of the trajectory display device 4 can be reduced. In addition, since the time information is displayed for a plurality of line segments or points replaced or integrated by the processing of the control unit 40 of the trajectory display device 4, the user grasps the movement status of the cellular phone 1 over time. be able to.

  In the present embodiment, in the processing procedure shown in FIGS. 4 and 5, the overlapping flag and the dense flag stored by the control unit 40 of the trajectory display device 4 have a plurality of line segments densely and overlapped. It may be determined that This is because it may be difficult to distinguish the two. Therefore, when the control unit 40 of the trajectory display device 4 determines that both the duplication flag and the dense flag are set, the control unit 40 may perform processing with priority on the dense flag being set.

  In the processing procedure of the control unit shown in FIG. 4 and FIG. 5 of the present embodiment, a plurality of lines connecting points corresponding to positions indicated by position information in which the line segment connecting the start point and the end point is continuous in other time series. In the process of determining whether or not the line segments are densely packed together, a configuration is shown in which each position information is determined based on whether or not it intersects with the line segments obtained so far in time series. The present invention is not limited to this, and a figure having an approximately elliptical shape with a predetermined area is set for a map image for a certain reduction ratio, the coordinates of the figure are shifted by a predetermined distance, and the figure is shifted each time the coordinates of the figure are shifted. The number of points corresponding to the position indicated by the position information of the mobile phone 1 included in is counted. When the counted number is a predetermined number or more, it may be determined that a plurality of line segments connecting points included in the graphic are dense.

  In the present embodiment, the control unit 40 of the trajectory display device 4 determines whether or not a plurality of line segments connecting points corresponding to the positions indicated by the position information are dense, whether or not they overlap, and the position information. All the determinations are made as to whether or not the point corresponding to the indicated position is within a predetermined distance. However, the trajectory display method of the present invention is not limited to this, and it corresponds to whether or not a plurality of line segments connecting points corresponding to the position indicated by the position information are dense, overlapping, and the position indicated by the position information. The configuration may be such that any one of the determinations as to whether or not the point to be performed is within a predetermined distance. For example, only determine whether or not multiple line segments are dense, and if it is determined that multiple line segments are dense, just replace and display with a single figure that includes multiple dense line segments Good.

  In the present embodiment, the trajectory display device 4 acquires the position information of the mobile phone 1 that is the target of the trajectory to be displayed from the server device 3 by a single process, and then creates replacement / integration information for drawing. In addition, the process of displaying the locus at a time is configured. However, the present invention does not limit the acquisition timing of the location information of the mobile phone 1. The server device 3 transmits the location information to the trajectory display device 4 every time the server device 3 receives the longitude and latitude information from the mobile phone 1, and the trajectory The display device 4 may be configured to display the movement locus of the mobile phone 1 in real time. In this case, each time the position information is received, the control unit of the trajectory display device 4 is within a predetermined distance from a point corresponding to the position indicated by the position information based on the position information received so far in time series. , It is determined whether the line segments connecting the points indicated by the position information overlap or are dense.

  In the present embodiment, the control unit 40 of the trajectory display device 4 creates replacement / integration information for executing the trajectory display method according to the present invention, and displays the trajectory based on the created replacement / integration information. It was. However, the present invention is not limited to this, and the server device 3 reads position information continuous in time series for the mobile phone 1 that is the object of the movement locus, creates replacement / integrated information based on the read position information, and The structure which transmits to the display apparatus 4 may be sufficient. Thereby, the load of the control part 40 of the locus | trajectory display apparatus 4 can be reduced.

  Further, the following supplementary notes are disclosed regarding the above embodiment.

(Appendix 1)
In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information In a dense state, a plurality of line segments connecting any two points corresponding to the positions indicated by time-sequential position information among the points exist in a predetermined range on the map image. A trajectory display method characterized by determining whether or not there is a dense state and replacing it with a single figure including a plurality of line segments existing within the predetermined range.

(Appendix 2)
In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information Of these points, a line segment connecting any two points corresponding to the positions indicated by the position information consecutive in time series connects two points corresponding to the positions indicated by the position information consecutive in other time series. A trajectory display method characterized by determining whether or not a line segment overlaps the map image, and replacing the plurality of overlapping line segments with a single line segment when it is determined that they overlap.

(Appendix 3)
In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information Determining whether or not a point corresponding to the position indicated by any time-series position information is within a predetermined distance, and determining that the point is within the predetermined distance, a plurality of points within the predetermined distance A trajectory display method characterized by integrating and displaying one point of a predetermined shape.

(Appendix 4)
In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information In a dense state, a plurality of line segments connecting any two points corresponding to the positions indicated by time-sequential position information among the points exist in a predetermined range on the map image. If it is determined whether or not there is a crowded state, it is replaced with a single figure including a plurality of line segments existing within the predetermined range, and the time series of each point is displayed. A line segment connecting any two points corresponding to the position indicated by the continuous position information overlaps on the map image with a line segment connecting two points corresponding to the positions indicated by the position information consecutive in other time series. If it is determined that there is a duplication, A plurality of line segments are replaced with one line and displayed, and it is determined whether or not a point corresponding to the position indicated by any time-series position information is within a predetermined distance. A trajectory display method comprising: displaying a plurality of points within a predetermined distance as one point of a predetermined shape when it is determined that there is a predetermined distance.

(Appendix 5)
The position information is associated with time information indicating the time at which each was acquired, and the positions of both ends or integrated points of a plurality of line segments replaced with one figure or one line segment The time information associated with the information is displayed in the vicinity of the one figure, one line segment or one point, and the time information displayed in the vicinity of the one figure, one line segment or one point is When it is detected that the time information has been selected, a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series is detected. The trajectory display method according to any one of appendices 1 to 4, wherein the display is performed by superimposing the figure, one line segment, or one point.

(Appendix 6)
Predetermined number of intersections between the line connecting two points corresponding to the positions indicated by time-series position information and the line connecting two points corresponding to positions indicated by other time-series position information The trajectory display method according to any one of appendices 1, 4 and 5, wherein when the number is greater than or equal to a number, it is determined that the state is dense.

(Appendix 7)
Supplementary notes 1, 4 or characterized in that when the number of points included in a predetermined area on the map image among the points is equal to or greater than a predetermined number, the dense state is determined. The trajectory display method according to any one of 5.

(Appendix 8)
The trajectory display method according to any one of appendices 3 to 7, wherein the predetermined distance is changed according to a reduction rate of a map image.

(Appendix 9)
Means for acquiring position information of a moving object in time series, means for displaying a locus by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information; A plurality of line segments connecting any two points corresponding to the positions indicated by time-sequential position information among the points within a predetermined range on the map image. The density determination means for determining whether or not the above-described density state exists, and when the density determination means determines that the density state is a density state, the figure includes a plurality of line segments existing within the predetermined range. A trajectory display device comprising: means for displaying by replacement.

(Appendix 10)
Means for acquiring position information of a moving object in time series, means for displaying a locus by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information; In the trajectory display device comprising: the line segment connecting any two points corresponding to the positions indicated by the position information continuous in time series among the points is the position indicated by the position information continuous in other time series. Means for determining whether or not a line segment connecting two corresponding points overlaps on the map image, and means for replacing a plurality of overlapping line segments with a single line segment when it is determined that they overlap. A trajectory display device comprising:

(Appendix 11)
Means for acquiring position information of a moving object in time series, means for displaying a locus by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information; A trajectory display device comprising: means for determining whether or not a point corresponding to a position indicated by any time-series position information is within a predetermined distance; A trajectory display device comprising: means for integrating and displaying a plurality of points within a distance into one point of a predetermined shape.

(Appendix 12)
Means for acquiring position information of a moving object in time series, means for displaying a locus by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information; A plurality of line segments connecting any two points corresponding to the positions indicated by time-sequential position information among the points within a predetermined range on the map image. The density determination means for determining whether or not the above-described density state exists, and when the density determination means determines that the density state is a density state, the figure includes a plurality of line segments existing within the predetermined range. The position indicated by the position information continuous in the other time series is a line segment connecting any two points corresponding to the position indicated by the position information continuous in time series among the means for displaying by replacement A line connecting two points corresponding to and the map image Means for determining whether or not they overlap on each other, means for replacing a plurality of overlapping line segments with a single line segment if they are determined to overlap, and position information continuous in any time series Means for determining whether or not a point corresponding to the position indicated by is within a predetermined distance, and if it is determined to be within the predetermined distance, a plurality of points within the predetermined distance are integrated into one point of a predetermined shape A trajectory display device comprising: a display unit configured to display the trajectory.

(Appendix 13)
The position information is associated with time information indicating the time at which each was acquired, and the positions of both ends or integrated points of a plurality of line segments replaced with one figure or one line segment Means for displaying the time information associated with the information in the vicinity of the one graphic, one line segment or one point, and the time displayed in the vicinity of the one graphic, one line segment or one point Means for detecting that information has been selected, and a trajectory connecting points corresponding to the positions indicated by the position information associated with the selected time information in time series when it is detected that the time information has been selected 13. The trajectory display device according to any one of appendices 9 to 12, further comprising means for superimposing and displaying on the one figure, one line segment, or one point.

(Appendix 14)
The congestion determination means includes a line segment connecting two points corresponding to positions indicated by position information continuous in time series and a line segment connecting two points corresponding to positions indicated by position information consecutive in other time series. 14. The trajectory display device according to any one of appendices 9, 12 and 13, wherein when the number of intersecting intersections is equal to or greater than a predetermined number, the crowded state is determined.

(Appendix 15)
The density determination means determines that the area is dense when the number of points included in a predetermined area on the map image among the points is a predetermined number or more. 14. The trajectory display device according to any one of appendices 9, 12, or 13, characterized by the above.

(Appendix 16)
The trajectory display device according to any one of appendices 11 to 15, wherein the predetermined distance is set to be changed according to a reduction rate of the map image.

(Appendix 17)
A function of acquiring the position information of the moving body in time series on a computer having a display means, and connecting points in time series on the map image based on the map information corresponding to the position indicated by the acquired position information of the moving body In the computer program for realizing a function of displaying a trajectory on the display unit, a plurality of lines connecting any two points corresponding to the positions indicated by the time-series position information among the points are displayed on the computer. A minute determination function for determining whether or not there is a dense state in which a predetermined number of minutes are present in a predetermined range on the map image, and the predetermined range when the dense determination function is determined to be a dense state A computer program for realizing a function of replacing a single figure including a plurality of line segments existing therein.

(Appendix 18)
A function of acquiring the position information of the moving body in time series on a computer having a display means, and connecting points in time series on the map image based on the map information corresponding to the position indicated by the acquired position information of the moving body In a computer program for realizing a function of displaying a trajectory on the display means, a line segment connecting any two points corresponding to positions indicated by position information continuous in time series among the points is displayed on the computer. , A function for determining whether or not the line segment connecting two points corresponding to the position indicated by the position information consecutive in time series overlaps on the map image, and a plurality of overlapping when it is determined that they overlap A computer program for realizing a function of replacing a line segment with a single line segment.

(Appendix 19)
A function of acquiring the position information of the moving body in time series on a computer having a display means, and connecting points in time series on the map image based on the map information corresponding to the position indicated by the acquired position information of the moving body In a computer program for realizing a function of displaying a trajectory on the display means, the computer determines whether or not a point corresponding to a position indicated by any time-series position information is within a predetermined distance. A computer program for realizing a function and a function of integrating a plurality of points within a predetermined distance into one point of a predetermined shape when it is determined that the distance is within a predetermined distance.

(Appendix 20)
A function of acquiring the position information of the moving body in time series on a computer having a display means, and connecting points in time series on the map image based on the map information corresponding to the position indicated by the acquired position information of the moving body In the computer program for realizing a function of displaying a trajectory on the display unit, a plurality of lines connecting any two points corresponding to the positions indicated by the time-series position information among the points are displayed on the computer. A minute determination function for determining whether or not a minute is a dense state existing in a predetermined range on the map image, and when the dense determination function is determined to be a dense state, A function that replaces a single figure that includes a plurality of existing line segments, and a line segment that connects any two points corresponding to the position indicated by position information that is continuous in time series among the points is at another time. system A function for determining whether or not the line segment connecting two points corresponding to the position indicated by the position information continuous to the map image overlaps. A function for determining whether a point corresponding to the position indicated by any time-series position information is within a predetermined distance, and a predetermined distance when determining that the point is within the predetermined distance. A computer program for realizing a function of integrating a plurality of points in a single point into one point of a predetermined shape.

(Appendix 21)
The position information is associated with time information indicating the time at which each was acquired, and the positions of both ends or integrated points of a plurality of line segments replaced with one figure or one line segment Function for displaying time information associated with information in the vicinity of the one figure, one line segment or one point, time information displayed in the vicinity of the one figure, one line segment or one point A function that detects that the selected time information is selected, and when detecting that the time information is selected, a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series 21. The computer program according to any one of appendices 17 to 20, which realizes a function of further superimposing and displaying on the one figure, one line segment, or one point.

(Appendix 22)
The congestion determination function is a computer that connects a line segment connecting two points corresponding to positions indicated by time-series position information and a line connecting two points corresponding to positions indicated by other time-series position information. The computer program according to any one of appendices 17, 20 and 21, wherein when the number of intersections intersecting with a minute is equal to or greater than a predetermined number, the state is determined to be in the dense state.

(Appendix 23)
The congestion determination function causes the computer to determine that the state is dense when the number of points included in a predetermined area on the map image is greater than or equal to a predetermined number. The computer program according to any one of appendices 17, 20 or 21, wherein

(Appendix 24)
A central device that stores position information and map information acquired in time series for a plurality of mobile objects, and a terminal device that is connected to the central device and has display means, the central device storing On the map image based on the map information, the drawing information for displaying the trajectory connecting the points corresponding to the position indicated by the position information on one of the stored moving objects in time series Means for creating, and means for transmitting the created drawing information, wherein the terminal device includes means for receiving the drawing information, and means for displaying a movement locus on the display means based on the received drawing information. In the trajectory display system, the terminal device includes means for transmitting designation information for designating a moving object, and means for receiving drawing information for the designated moving object, and the central device displays the designation information. A plurality of line segments connecting any two points corresponding to the position indicated by the position information that is continuous in time series among the respective points on the map image with respect to the designated moving object. A congestion determination unit that determines whether or not a predetermined number or more of the line segments are in a predetermined range, and a plurality of line segments that exist in the predetermined range when the congestion determination unit determines that the congestion state is a A trajectory display system comprising: means for creating, as drawing information, information to be replaced with one graphic to be displayed.

(Appendix 25)
A central device that stores position information and map information acquired in time series for a plurality of mobile objects, and a terminal device that is connected to the central device and has display means, the central device storing On the map image based on the map information, the drawing information for displaying the trajectory connecting the points corresponding to the position indicated by the position information on one of the stored moving objects in time series Means for creating, and means for transmitting the created drawing information, wherein the terminal device includes means for receiving the drawing information, and means for displaying a movement locus on the display means based on the received drawing information. In the trajectory display system, the terminal device includes means for transmitting designation information for designating a moving object, and means for receiving drawing information for the designated moving object, and the central device displays the designation information. A plurality of line segments connecting any two points corresponding to the positions indicated by the position information continuous in time series among the points for the specified moving object, and other time series Means for determining whether or not the line segment connecting the two points corresponding to the positions indicated by the continuous position information overlaps with the map image; A trajectory display system comprising: means for creating, as drawing information, information to be replaced and displayed.

(Appendix 26)
A central device that stores position information and map information acquired in time series for a plurality of mobile objects, and a terminal device that is connected to the central device and has display means, the central device storing On the map image based on the map information, the drawing information for displaying the trajectory connecting the points corresponding to the position indicated by the position information on one of the stored moving objects in time series Means for creating, and means for transmitting the created drawing information, wherein the terminal device includes means for receiving the drawing information, and means for displaying a movement locus on the display means based on the received drawing information. In the trajectory display system, the terminal device includes means for transmitting designation information for designating a moving object, and means for receiving drawing information for the designated moving object, and the central device displays the designation information. Means for transmitting, means for determining whether or not a point corresponding to the position indicated by any time-series position information is within a predetermined distance with respect to the designated moving body, and is within the predetermined distance And a means for creating, as drawing information, information for integrating and displaying a plurality of points within a predetermined distance on one point of a predetermined shape.

(Appendix 27)
A central device that stores position information and map information acquired in time series for a plurality of mobile objects, and a terminal device that is connected to the central device and has display means, the central device storing On the map image based on the map information, the drawing information for displaying the trajectory connecting the points corresponding to the position indicated by the position information on one of the stored moving objects in time series Means for creating, and means for transmitting the created drawing information, wherein the terminal device includes means for receiving the drawing information, and means for displaying a movement locus on the display means based on the received drawing information. In the trajectory display system, the terminal device includes means for transmitting designation information for designating a moving object, and means for receiving drawing information for the designated moving object, and the central device displays the designation information. A plurality of line segments connecting any two points corresponding to the position indicated by the position information that is continuous in time series among the respective points on the map image with respect to the designated moving object. A congestion determination unit that determines whether or not a predetermined number or more of the line segments are in a predetermined range, and a plurality of line segments that exist in the predetermined range when the congestion determination unit determines that the congestion state is a A line connecting any two points corresponding to the position indicated by the position information continuous in time series among the points, the means for creating information to be replaced and displayed as one graphic to be displayed as drawing information Means for determining whether or not the minute overlaps on the map image with a line segment connecting two points corresponding to the positions indicated by the position information indicated by other time series, and if it is determined that the minutes overlap, Information to display by replacing a line with a single line When it is determined that the means for creating as drawing information, the means for determining whether or not the point corresponding to the position indicated by any time-series position information is within a predetermined distance, A trajectory display system comprising: means for creating, as drawing information, information for integrating and displaying a plurality of points within a predetermined distance on one point of a predetermined shape.

(Appendix 28)
The position information is associated with time information indicating the time at which each is acquired, and the central device is configured to integrate points on both ends of a plurality of line segments replaced with one graphic or one line segment, or integration. Means for creating, as drawing information, information for displaying the time information associated with the position information of the designated point in the vicinity of the one figure, one line segment, or one point, and the one figure, one Means for detecting that time information displayed in the vicinity of a line segment or one point is selected, and position information associated with the selected time information when it is detected that time information is selected Means for creating, as drawing information, information for displaying a trajectory connecting points corresponding to the positions indicated in time series on the one figure, one line segment, or one point. The locus display system according to any one of appendices 24 to 27. Temu.

It is explanatory drawing which shows notionally the locus | trajectory display system containing the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention. It is a block diagram which shows the internal structure of the mobile telephone which comprises the locus | trajectory display system which implements the locus | trajectory display method of this invention, a server apparatus, and a locus | trajectory display apparatus. It is explanatory drawing which shows the example of the positional information continuous in a time series about the mobile telephone which the control part of the locus | trajectory display apparatus in embodiment acquired from the server apparatus. It is a flowchart which shows the process sequence in which the control part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention memorize | stores replacement and integration information. It is a flowchart which shows the process sequence in which the control part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention memorize | stores replacement and integration information. It is explanatory drawing which shows the example of the replacement / integration information memorize | stored in the temporary storage area of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention. It is a flowchart which shows the process sequence which the control part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention draws on a display part based on replacement and integration information. It is a flowchart which shows the process sequence which the control part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention draws on a display part based on replacement and integration information. It is explanatory drawing which shows the example of the movement locus | trajectory of the mobile telephone displayed on the display part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention. It is explanatory drawing which shows the example of the movement locus | trajectory of the mobile telephone displayed on the display part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention. 7 is a flowchart showing a processing procedure for displaying time information when the control unit of the trajectory display device that implements the trajectory display method according to the present invention has a mouse pointer over one figure, one line segment, or one point. is there. 7 is a flowchart showing a processing procedure for displaying time information when the control unit of the trajectory display device that implements the trajectory display method according to the present invention has a mouse pointer over one figure, one line segment, or one point. is there. It is explanatory drawing which shows the example by which time information is displayed on the vicinity of one point integrated and displayed on the screen which the display part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention has. It is explanatory drawing which shows the example by which time information is displayed in the vicinity of the one line segment replaced and displayed on the screen which the display part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention has. It is explanatory drawing which shows the example which displays time information in the vicinity of the one figure displayed by replacement on the screen which the display part of the locus | trajectory display apparatus which implements the locus | trajectory display method which concerns on this invention replaces.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2a, 2b, ... GPS satellite 3 Server apparatus 4 Trajectory display apparatus 10, 30, 40 Control part 45 Display part

Claims (4)

In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information ,
The position information is associated with time information indicating the time when each was acquired,
A plurality of line segments connecting any two points corresponding to positions indicated by time-sequential position information among the points are in a dense state in which a predetermined number or more exist within a predetermined range on the map image. Whether or not
If it is determined to be in a dense state, it is replaced with a single figure including a plurality of line segments existing within the predetermined range, and is displayed .
Displaying time information associated with position information of points at both ends of each of the plurality of line segments replaced with the one figure in the vicinity of the one figure,
Detecting that the time information displayed in the vicinity of the one figure is selected,
When it is detected that the time information has been selected, a trajectory connecting points corresponding to the positions indicated by the position information associated with the selected time information in time series is superimposed and displayed on the one figure. Trajectory display method characterized by In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information ,
The position information is associated with time information indicating the time when each was acquired,
Of the points, a line connecting any two points corresponding to the positions indicated by the position information continuous in time series connects the two points corresponding to the positions indicated by the position information continuous in other time series. And whether or not there is an overlap on the map image,
If you decide to overlap, replace multiple overlapping line segments with a single line ,
Displaying time information associated with position information of points at both ends of each of the plurality of line segments replaced with the one line segment in the vicinity of the one line segment,
Detecting that the time information displayed near the one line segment is selected,
When it is detected that the time information has been selected, a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series is superimposed and displayed on the one line segment. A trajectory display method characterized by this. In a trajectory display method for acquiring position information of a moving object in time series and displaying a trajectory by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information ,
The position information is associated with time information indicating the time when each was acquired,
Determining whether a point corresponding to the position indicated by any time-series position information is within a predetermined distance;
If it is determined that it is within the predetermined distance, a plurality of points within the predetermined distance are integrated into one point of the predetermined shape and displayed .
Display time information associated with the integrated point position information in the vicinity of the one point,
Detecting that the time information displayed near the one point is selected,
When it is detected that the time information has been selected, a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series is superimposed and displayed on the one point. Trajectory display method characterized by Means for acquiring position information of a moving object in time series, means for displaying a locus by connecting points corresponding to positions indicated by the acquired position information of the moving object in time series on a map image based on map information; In a trajectory display device comprising:
The position information is associated with time information indicating the time when each was acquired,
A plurality of line segments connecting any two points corresponding to positions indicated by time-sequential position information among the points are in a dense state in which a predetermined number or more exist within a predetermined range on the map image. A dense judgment means for judging whether or not,
Means for replacing and displaying with one figure including a plurality of line segments existing within the predetermined range, when the congestion determination means determines that it is in a dense state;
Means for displaying time information associated with position information of points at both ends of each of the plurality of line segments replaced with the one figure in the vicinity of the one figure;
Means for detecting that the time information displayed in the vicinity of the one figure is selected;
Means for superimposing and displaying a trajectory connecting points corresponding to the position indicated by the position information associated with the selected time information in time series when it is detected that the time information is selected. locus display device, characterized in that it comprises and.

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