JP4793387B2 - POSITION INFORMATION MANAGEMENT DEVICE AND PROGRAM - Google Patents

Description

  The present invention relates to a position information management device and a program.

  In recent years, with the widespread use of mobile terminals equipped with position detection means such as GPS (Global Positioning System) receivers, such terminals are used for applications such as managing the locations of sales representatives to which they belong. To be considered. In this case, the mobile terminal transmits position information indicating the current position of the target person possessing the mobile terminal to a predetermined position information management device (server). The position information management device that has received the position information of the target person compares the position information with the position information of the destination (for example, the location of the user company) to determine when and what destination the target person has visited. It can be determined and recorded.

At this time, the position detection means such as a GPS receiver may fail to detect the position information or the detection accuracy may change due to factors such as the surrounding environment. Therefore, when position detection fails, the technology determines the destination according to the previous position, and uses changes in detection accuracy, etc., as changes in the state of the target person to grasp the target person's behavior Has been proposed (for example, Patent Documents 1 and 2).
Japanese Patent No. 3960134 JP 2004-198257 A

  In the technique of the above conventional example, even when there are a plurality of destinations that can be visited by the subject, the positional relationship between them is not considered. For this reason, for example, when the destinations are densely populated, there may occur a case where the destination actually visited by the target person cannot be grasped correctly.

  The present invention has been made in view of the above circumstances, and one of its purposes is to determine the destination destination in consideration of the positional relationship between a plurality of destinations that can be visited by the target person. An object of the present invention is to provide a position information management apparatus and program that can be used.

  The invention according to claim 1 is a location information management device, and for each of a plurality of destinations that can be visited by the target person, destination location information acquisition means for acquiring location information indicating the location of the destination, Based on the acquired positional information of the plurality of destinations, a region demarcating unit that demarcates a destination determination region that includes the destination and does not include a destination other than the destination for each of the plurality of destinations And the target person position information acquisition means for acquiring position information indicating the position of the target person, the acquired position information of the target person, and the plurality of defined destination determination areas. And determining means for determining a destination visited.

  The invention according to claim 2 is the positional information management device according to claim 1, wherein the area demarcating means is another destination that exists in the vicinity of the destination and the destination for each of the plurality of destinations. The destination determination area is defined based on the position information of the destination.

  A third aspect of the present invention is the positional information management device according to the first or second aspect, wherein the area demarcating unit is configured to associate the destination and the target person with each of the plurality of destinations. The destination determination area is defined based on information indicating association.

  A fourth aspect of the present invention is the positional information management device according to any one of the first to third aspects, wherein the area demarcating unit is configured to provide a plurality of types of accuracy for each of the plurality of destinations. A plurality of destination determination areas are defined in association with each other, and the target person position information acquisition unit acquires information indicating the accuracy of the position information together with the position information indicating the position of the target person. Based on the acquired position information of the target person and a destination determination area associated with the type of accuracy of the acquired position information among the plurality of destination determination areas defined in the previous period, the target person visits The destination is determined.

  The invention according to claim 5 is the position information management device according to any one of claims 1 to 4, wherein the destination position information acquisition means has a plurality of different purposes for each of a plurality of subjects. Position information indicating the position of the ground is acquired, and the area demarcating unit is configured to obtain, for each of the plurality of subjects, a plurality of destinations for which the destination location information obtaining unit has obtained location information for the subject. A destination determination area is defined for each of the plurality of target persons, and the target person position information acquiring unit acquires position information indicating the positions of the target persons for each of the plurality of target persons. For each person, based on the position information acquired by the target person position information acquisition means for the target person and the destination determination area defined for the target person by the area defining means. , And judging a destination to which the subject has visited.

  The invention according to claim 6 is a destination location information acquisition means for acquiring location information indicating the location of the destination for each of a plurality of destinations that can be visited by the target person, Based on position information, for each of the plurality of destinations, area demarcating means for demarcating a destination determination area that includes the destination and does not include a destination other than the destination, and a position that indicates the position of the target person Target position information acquisition means for acquiring information, and determination means for determining a destination visited by the target person based on the acquired position information of the target person and the plurality of defined destination determination areas , A program for causing a computer to function.

  According to the first and sixth aspects of the invention, it is possible to determine the destination that has been the destination of the subject according to the positions of the plurality of destinations that can be the destination of the subject.

  According to the invention described in claim 2, one of the destinations that can be the destination of the subject is the destination of the subject in consideration of the position of another destination that exists in the vicinity of the destination. Destination can be determined.

  According to the invention described in claim 3, the destination that has been the destination of the subject can be determined according to the relationship between each of the destinations that can be the destination of the subject and the subject. it can.

  According to the fourth aspect of the present invention, it is possible to determine the destination that has been visited by the subject in consideration of the accuracy of the location information of the subject.

  According to the invention described in claim 5, for a plurality of subjects, the destination that each subject person visits is determined in consideration of the difference in destinations that each subject person may visit. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration example of a location information management device 1 according to an embodiment of the present invention. As shown in FIG. 1, the location information management device 1 is connected to a mobile terminal 2 through a wireless communication network so that data communication is possible.

  The location information management device 1 is a server computer, for example, and includes a control unit 11, a storage unit 12, and a communication unit 13, as shown in FIG. The location information management device 1 manages the visit destination of a person (hereinafter referred to as a target person U) who carries the mobile terminal 2 and moves.

  The control unit 11 is, for example, a CPU or the like, and executes various types of information processing according to programs stored in the storage unit 12. A specific example of processing executed by the control unit 11 in the present embodiment will be described later.

  The storage unit 12 includes a memory element such as a RAM and a ROM, a hard disk, and the like. The storage unit 12 holds programs executed by the control unit 11 and various data. The storage unit 12 also operates as a work memory for the control unit 11.

  The communication unit 13 is, for example, a network interface such as a LAN card, and transmits / receives information to / from each mobile terminal 2 via a communication unit such as a LAN or a wireless communication network.

  The portable terminal 2 is a terminal that can be carried by the target person U, and includes a position detection unit 21 and a communication unit 22 as shown in FIG.

  The position detection unit 21 is, for example, a GPS receiver, detects its own current position, and outputs position information (for example, a set of latitude and longitude values) indicating the position. For example, the position detection unit 21 detects the position every predetermined time while the subject U is moving while holding the mobile terminal 2.

  The communication unit 22 is a wireless communication interface, and transmits the position information output from the position detection unit 21 to the position information management device 1.

  Note that the mobile terminal 2 may include a plurality of types of position detection units 21 that detect positions by different methods. In this case, when the plurality of types of position detection units 21 each succeed in detecting the position of the mobile terminal 2, the communication unit 22 is selected according to, for example, the detection accuracy or detection condition of each position detection unit 21. The position information may be transmitted to the position information management device 1. Alternatively, a plurality of pieces of position information detected by a plurality of types of position detectors 21 may be transmitted to the position information management apparatus 1 in association with information specifying each detection means.

  Here, information stored in the location information management device 1 according to the present embodiment will be described. In the present embodiment, the location information management device 1 stores a destination table T1 in the storage unit 12. The destination table T1 is a table that includes information on a plurality of destinations that can be visited by the subject U. FIG. 3 is a diagram showing an example of data contents included in the destination table T1. In the example of FIG. 3, the destination table T <b> 1 includes a destination name (here, a company name and a branch name) and location information (here, the location of the destination) for a destination ID that identifies each destination. (Latitude and longitude), destination address, and information indicating the valid period of the destination data are stored in association with each other.

  The destination table T1 may further include various attribute information regarding each destination. For example, the destination table T1 may include information indicating the time (day of the week, time zone, etc.) that each destination may be visited by the subject U. Further, for each destination stored in the destination table T1, information indicating a relationship between the destination and the subject U may be included. Specifically, for example, when each destination is a business partner of a company that uses the location information management device 1, the destination table T1 includes a transaction amount with this business partner, a transaction stage (a negotiation phase, Information indicating the delivery phase, etc.).

  Hereinafter, functions realized by the location information management device 1 according to the present embodiment will be described. As shown in FIG. 4, the position information management device 1 functionally includes a destination position information acquisition unit 31, a region demarcation unit 32, a target person position information acquisition unit 33, and a determination unit 34. It is configured. These functions are realized, for example, when the control unit 11 executes a program stored in the storage unit 12. In addition, this program may be provided via communication means such as the Internet, or may be provided by being stored in various computer-readable information storage media such as CD-ROM and DVD-ROM. .

  The destination location information acquisition unit 31 acquires location information indicating the location of the destination for each of a plurality of destinations that can be visited by the subject U. Specifically, the destination position information acquisition unit 31 reads the information included in the above-described destination table T1 from the storage unit 12, thereby acquiring the position information of the destination that can be the destination of the target person U.

  The area demarcating unit 32 demarcates the destination determination area A for each of the plurality of destinations based on the position information of the plurality of destinations acquired by the destination position information acquiring unit 31. Here, the destination determination area A is an area that is set for each of a plurality of destinations, and includes an area that includes the destination and the periphery of the destination, and does not include other destinations other than the destination. It is. Each destination determination area A is used to determine whether or not the target person U has visited a destination corresponding to the destination determination area A (that is, a destination included in the destination determination area A).

  Here, a specific example of a method in which the area defining unit 32 defines the destination determination area A will be described. The area demarcating unit 32 demarcates the destination determination area A by calculating, for example, a Voronoi diagram or a Delaunay diagram for each of the destinations for which the destination position information acquisition unit 31 has acquired the position information. Further, the area demarcating unit 32 may demarcate the destination determination area A corresponding to each destination using the attribute information associated with each destination in the destination table T1. Hereinafter, an example of the flow of processing executed by the region demarcation unit 32 will be described based on the flowchart of FIG.

  First, the area demarcating unit 32 determines one destination (hereinafter referred to as a target destination) as a target for demarcating the destination determination area A in the subsequent processing from a plurality of destinations (S1). Then, it is determined whether there is another destination in the vicinity of the target destination (S2). Specifically, for example, the area demarcating unit 32 has another destination whose position information is acquired by the destination position information acquiring unit 31 in a circular area whose center is the target destination and whose radius is a predetermined value Rn. Determine if the ground exists.

  When it is determined by the process of S2 that no other destination exists in the vicinity of the target destination, the area demarcating unit 32 includes the target destination and sets an area having a predetermined size and shape as the destination determination area A. (S3). Specifically, for example, the area demarcating unit 32 demarcates a circular area having a radius of a predetermined value Rmax (here, Rmax <Rn) as the destination determination area A, with the position of the target destination as the center point.

  On the other hand, when it is determined by the processing of S2 that one or more other destinations exist in the vicinity of the target destination (hereinafter, these other destinations are referred to as neighboring destinations) For each of the neighboring destinations, the position of the dividing point on the line segment connecting the neighboring destination and the target destination is determined (S4). The division point is a point for determining the boundary of the destination determination area A, and may be, for example, the midpoint of a line segment connecting the target destination and the neighboring destination, The point may be divided according to the division ratio determined by the method.

  For example, the area demarcating unit 32 may determine the division point in the destination table T1 according to attribute information associated with both the target destination and the neighboring destination. As a specific example, the area demarcating unit 32 evaluates the relevance between the target person U and each of the target destinations and the neighboring destinations based on the information included in the destination table T1, and determines the relevance. Accordingly, the dividing point is determined. Here, when it is evaluated that the relationship between the target person U and the target destination is stronger than the relationship with the neighboring destination (for example, the transaction volume with the target destination is between the neighboring destination and The line segment connecting the target destination and the neighboring destination is divided at a division ratio that makes the target destination side longer. By defining the destination determination area A based on such division points, for example, when the transaction volume with the target destination is larger than the neighboring destination, It is easy to determine that the destination of the target person U is not the neighboring destination but the target destination. In addition, the area demarcating unit 32 may determine the division point based on a division ratio that is determined based on information indicating the stage of transactions with each destination.

  FIG. 6 is a diagram illustrating an example of the position of the division point determined in the process of S4. This figure shows the positional relationship on the map of the target destination P0 and three neighboring destinations P1, P2 and P3 located in the vicinity of the target destination P0. Points a1, a2, and a3 represent the positions of the division points determined in S4, point a1 is a line segment connecting target destination P0 and neighboring destination P1, and point a2 is a target. A line segment connecting the destination P0 and the neighboring destination P2 is divided into points a3, and a line segment connecting the target destination P0 and the neighboring destination P2 is divided.

  Further, the area demarcating unit 32 demarcates the destination determination area A including the target destination based on the position of each division point determined in S4 (S5). Specifically, for example, a region that passes through each dividing point and has a straight line that is orthogonal to a line segment that connects the neighboring destination and the target destination is defined as the destination determination region A. At this time, the destination determination area A may be demarcated so that a position away from the target destination by a distance exceeding the predetermined value Rmax is not included in the destination determination area A. FIG. 7 is a diagram showing an example of the destination determination area A of the target destination P0 defined by this method when the positions of the respective destinations and division points are as shown in FIG. In addition, the area | region enclosed with a dashed-dotted line in the figure has shown the destination determination area | region A. FIG.

  Further, the area demarcating unit 32 may demarcate the destination determination area A by using a line segment connecting the division points determined in S4 as a boundary line of the destination determination area A. FIG. 8 is a diagram showing an example of the destination determination area A of the target destination P0 defined by such a method. Also in this figure, similarly to FIG. 7, the area surrounded by the alternate long and short dash line indicates the destination determination area A.

  Further, the area demarcating unit 32 sets a circular area that passes through the division point closest to the position of the target destination among the division points determined in the process of S4 with the position of the target destination as the center. A may be defined. Alternatively, the destination determination area A is defined by using the circumference of such a circle and the tangent line drawn from the circle with respect to each of the other division points outside the circle as boundary lines. May be. FIG. 9 is a diagram illustrating an example of the destination determination area A of the target destination P0 defined by such a method. Also in this figure, similarly to FIG. 7, the area surrounded by the alternate long and short dash line indicates the destination determination area A.

  Next, the area demarcating unit 32 determines whether or not the processes from S2 to S5 described above have been executed for all the destinations for which the destination position information acquisition unit 31 has acquired the position information (S6). If the processing has not been completed for all the destinations, the region demarcating unit 32 sets one of the destinations not yet processed as a target destination (S7), returns to S2, and repeats the processing. On the other hand, when the corresponding destination determination area A is defined for all the destinations, the area defining unit 32 ends the process.

  In the above description, the area demarcating unit 32 demarcates one destination determination area A for each destination. However, the area demarcation unit 32 may demarcate a plurality of destination determination areas A for one destination. Specifically, for example, the area demarcating unit 32 may demarcate the destination determination area A for each accuracy in association with the type of accuracy of position detection of the subject U. That is, when the position detection accuracy is one of three stages of A, B, and C in descending order of the accuracy of position detection, the area demarcation unit 32 determines three types of destination determinations for accuracy A, accuracy B, and accuracy C. Regions A1, A2 and A3 are defined for one destination. At this time, each destination determination area A is defined such that the higher accuracy destination determination area A is included in the lower accuracy destination determination area A.

  Specifically, for example, the area demarcating unit 32 determines the destination determination area A defined with consideration of the position of the adjacent destination by the process shown in the flow of FIG. And The destination determination area A for higher accuracy is centered on the position of the target destination so that it falls within a circular area having a radius R that is smaller than the predetermined value Rmax. A is defined. At this time, the radius R may be a value determined according to the accuracy of the corresponding position detection. FIG. 10 is a diagram illustrating an example of three types of destination determination areas A for accuracy A, accuracy B, and accuracy C. FIG. In the example of this figure, the destination determination area A3 for accuracy C is a circular area with a radius Rmax, the destination determination area A2 for accuracy B is a circular area with a radius Rmid, and the destination determination area for accuracy A is A1 is defined so as to fit in a circular region having a radius Rmin. Here, the three values Rmin, Rmid, and Rmax satisfy the relationship of Rmin <Rmid <Rmax, and are values corresponding to detection errors that can occur in the corresponding position detection accuracy. Alternatively, the area demarcating unit 32 sets the destination determination area A defined by the processing shown in the flow of FIG. 5 as the destination determination area A3 for the accuracy C with the lowest accuracy, and determines the destination for the accuracy C. A region having the same shape and center position as the region A3 and reduced in size by a predetermined ratio may be defined as a higher-precision destination determination region A for accuracy A or accuracy B.

  The target person position information acquisition unit 33 acquires position information indicating the position of the target person U by receiving information transmitted by the mobile terminal 2. Here, the portable terminal 2 includes information indicating the time when the position is detected (for example, detection date and time) together with position information indicating the position of the portable terminal 2 (that is, the position of the subject U holding the portable terminal 2). ). Further, for example, information indicating the detection accuracy and detection conditions when the position detection unit 21 detects the position may be transmitted together.

  The target person position information acquisition unit 33 records the position information acquired from the mobile terminal 2 in the storage unit 12 as the target person position table T2. FIG. 11 is a diagram illustrating an example of data contents included in such a subject position table T2. In the example of FIG. 11, as the position information of the target person U, the detection date and time, the position information (a set of latitude and longitude) indicating the position of the target person U detected at the detection date and time, the detection accuracy at that time, , Information relating to the detection means is included.

  The determination unit 34 is based on the position information of the target person U acquired by the target person position information acquisition unit 33 and the plurality of destination determination areas A demarcated by the area demarcation unit 32, and the purpose of the target person U visiting Determine the ground. As a specific example, the determination unit 34 first determines, for each position information of the subject U at each detection date and time included in the subject position table T2, that the position (detection position) indicated by the position information is a plurality of destination determinations. It is determined which of the area A is included in which destination determination area A or which destination determination area A is not included.

  Then, the determination unit 34 determines which destination the target person U has visited by evaluating the determination result for each detection position based on a predetermined condition, and determines the destination destination and the destination Outputs information (visit history information) indicating from when to when the user stayed at the destination. Specifically, for example, when it is determined that the target person U stays in one destination determination area A for a predetermined time or more, the determination unit 34 corresponds to the destination determination area A. It is determined that the destination to be visited is visited. Even if the position of the subject U is included in the destination determination area A, if the time is less than the predetermined time, the subject U is moving and corresponds to the destination determination area A. Determine that you are not visiting the destination.

  Further, the determination unit 34 may determine the destination to be visited in consideration of detection accuracy when each detection position is detected. For example, when the time included in the destination determination area A with a detection position is less than a predetermined time and the detection accuracy at that time is lower than the predetermined accuracy, the destination corresponding to the destination determination area A On the other hand, even if it is less than the predetermined time, if the detection accuracy at that time is equal to or higher than the predetermined accuracy, it is determined that the destination corresponding to the destination determination area A is visited . Further, when the determination unit 34 determines the destination visited by the subject U, other attribute information associated with each destination in the destination table T1 (for example, each destination is visited by the subject U). May be used).

  As described above, when the area demarcating unit 32 demarcates a plurality of destination determination areas A corresponding to a plurality of types of detection accuracy for each destination, the determination unit 34 determines that the detection position is the destination determination area A. When determining whether or not the detected position is included, the determination may be performed using the destination determination area A corresponding to the detection accuracy when the detection position is detected. Accordingly, it is possible to determine whether or not the target person U has visited the destination in consideration of the detection accuracy when detecting the position of the target person U.

  The visit history information obtained by the determination by the determination unit 34 is stored in the storage unit 12, for example. The location information management device 1 may present the visit history information to the target person U in response to the request of the target person U. Furthermore, in this case, the location information management device 1 may accept input of evaluation information for the correctness of the presented visit history information from the subject U. Thereby, the location information management device 1 can correct the visit history information stored in the storage unit 12 in response to the feedback of the subject U regarding whether or not the determination result by the determination unit 34 is correct.

  The visit history information may be used for the process of demarcating the destination determination area A by the area demarcating unit 32 described above. As a specific example, the location information management device 1 aggregates the number of visits to the destination of the target person U within a predetermined period, the visit frequency, and the like based on the visit history information. Then, in the process of S4 in the flow of FIG. 5 described above, the area demarcating unit 32 determines the position of the division point based on the number of visits and the visit frequency. Thereby, the area demarcating unit 32 can demarcate the destination determination area A so that, for example, the destination determination area A becomes wider as the number of visits increases.

  In addition, the target person U used as the object which manages position information by the position information management apparatus 1 may be plural. At this time, the destinations for which the destination position information acquisition unit 31 acquires position information may be common to a plurality of target persons U, or may be different from each other for each target person U. For example, the location information management apparatus 1 may store a destination table T1 that stores location information of destinations that can be visited by the target person U for each of the target persons U.

  In this case, the mobile terminal 2 possessed by each of the plurality of target persons U sends position information indicating the detected position to the position information management device 1 together with information for identifying the mobile terminal 2 itself (for example, a terminal ID). Send to. Then, the target person position information acquisition unit 33 stores the position information transmitted by each mobile terminal 2 in, for example, a different target person position table T2 for each target person U.

  Further, in this case, the area demarcating unit 32 demarcates the destination determination area A for each target person U based on the position information of the destination stored in the destination table T1 associated with the target person U. To do. In this case, for example, even if there is a possibility that the subject U1 and the subject U2 visit the same destination (here, the destination P0), other destinations existing in the vicinity of the destination P0. When the ground is different between the target person U1 and the target person U2, the destination determination area A defined for the destination P0 may be different between the target person U1 and the target person U2. As a result, even if the position information acquired by the target person position information acquisition unit 33 indicates the same position in the target person U1 and the target person U2, the destination determined as the destination by the target person U1 and the target person U2 Can change. Thus, the destination of each target person U is determined by setting the destination determination area A for each target person U according to the position of the destination that each target person U may visit. Accuracy can be increased.

  According to the present embodiment described above, the location information management device 1 defines the destination determination area A corresponding to each destination based on the location information of a plurality of destinations that can be visited. By determining the destination visited by the subject U using the location determination area A, it is possible to determine the destination to be visited in consideration of the positional relationship of a plurality of destinations.

  The embodiment of the present invention is not limited to the above-described embodiment. For example, in the description so far, the destination determination area A is defined in advance based on the position information of the destination that can be visited by the subject U before the detection position of the subject U is acquired. It is said. However, after acquiring the position information indicating the position of the target person U, the position information management apparatus 1 demarcates and demarcates the destination determination area A for the destination in the vicinity of the detection position indicated by the position information. The destination determination area A may be used to determine whether the target person U has visited the destination. In this case, the destination determination area A may be defined in consideration of the detection accuracy when the position of the subject U is detected.

  Further, each of the destination determination areas A defined by the area defining unit 32 includes only one destination and does not include a plurality of destinations. However, the destination determination area A corresponding to each destination may be defined so as to include overlapping portions. In this case, when the detection position of the target person U acquired by the target person position information acquisition unit 33 is included in this overlapping portion, the target person U has a plurality of destinations corresponding to each of the overlapping destination determination areas A. It is determined that any one of them has been visited. In this case, for example, the location information management device 1 presents these destinations as candidate destinations to the target person U, and causes the target person U to select which destination the user visited, thereby The destination can be specified.

  In the above description, the position information indicating the position of the destination acquired by the destination position information acquisition unit 31 is a set of latitude and longitude values. The location information of the destination may be information representing the range of the site of the destination. For example, the location information of the destination may include three or more sets of latitude and longitude values representing the destination site. The plurality of sets of latitude and longitude values indicate the vertex positions of polygonal regions obtained by sequentially connecting the positions on the map represented by the respective pairs of latitude and longitude. Thereby, the position information of each destination becomes information representing a certain range of region corresponding to the site of the destination.

  In this way, when the position information of the destination is information representing an area within a certain range, the position information management apparatus 1 demarcates the center of gravity position of the vertex of this area as the destination determination area A by the area delimiter 32 described above. In this process, it may be used as the destination position. Alternatively, the destination position information acquisition unit 31 may include, in addition to information indicating the range of the site of the destination, position information indicating the representative position of the destination (that is, a set of latitude and longitude indicating one point in the site) The area demarcation unit 32 may perform a process of demarcating the destination determination area A with the representative position as the position of the destination.

  Further, when the information indicating the site range of the destination is acquired by the destination location information acquisition unit 31 as the location information of the destination, the area demarcating unit 32 determines whether the destination is in accordance with the range of the site. The determination area A may be defined. Specifically, for example, in the process of determining the division point in S4 in the flow of FIG. 5 described above, the region demarcation unit 32 determines the center position of the target destination (that is, the center of gravity position or the representative position described above) and the neighboring destinations. Based on the intersection where the line connecting the center position intersects the outer peripheries of the target destination and neighboring destinations, the line connecting the intersection on the target destination side and the intersection on the neighboring destination side You may determine the position of a division | segmentation point so that it may divide | segment by a division ratio. FIG. 12 is a diagram illustrating an example of the position of the dividing point determined in the process of S4 in this case. In this figure, the center position of the target destination is represented as a point P0, and the center position of the neighboring destination is represented as a point P1. In addition, areas indicated by oblique lines surrounding the respective center positions represent the ranges of the sites of the target destination and the neighboring destinations. Furthermore, the point x0 is an intersection between the line segment connecting the point P0 and the point P1 and the outer periphery of the site of the target destination, and the point x1 is the line segment connecting the point P0 and the point P1 and the neighboring destination. Each intersection with the outer periphery of the site is shown. In this example, the region demarcating unit 32 determines, as a division point a1, a point that divides a line segment connecting the point x0 and the point x1 according to a division ratio determined by a predetermined method. In this way, the destination determination area A corresponding to each destination can be defined in consideration of the size of each site located in the vicinity of each other.

It is a block diagram showing the example of a rough structure of the positional infomation management apparatus which concerns on embodiment of this invention. It is a block diagram showing the structural example of a portable terminal. It is a figure which shows an example of the information contained in the destination table. It is a functional block diagram which shows an example of the function which the position information management apparatus which concerns on embodiment of this invention implement | achieves. It is a flowchart which shows an example of the flow of the process which an area | region demarcation part performs. It is a figure which shows an example of the position of the dividing point determined by an area | region demarcation part. It is a figure which shows an example of the destination determination area | region demarcated by an area | region demarcation part. It is a figure which shows another example of the destination determination area | region demarcated by the area | region demarcation part. It is a figure which shows another example of the destination determination area | region demarcated by the area | region demarcation part. It is a figure which shows an example of several destination determination area | region defined according to several detection accuracy. It is a figure which shows an example of the information contained in a subject person position table. It is a figure which shows another example of the position of the division | segmentation point determined by an area | region demarcation part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Position information management apparatus, 2 Portable terminal, 11 Control part, 12 Storage part, 13, 22 Communication part, 21 Position detection part, 31 Destination position information acquisition part, 32 Area demarcation part, 33 Target person position information part, 34 Judgment part.

Claims (5)

For each of a plurality of destinations that can be visited by the target person, destination position information acquisition means for acquiring position information indicating the position of the destination;
A means for demarcating a destination determination area that includes the destination and does not include a destination other than the destination, for each of the plurality of destinations, based on the acquired positional information of the plurality of destinations. , Determine the position of the dividing point that divides the line segment connecting the destination and other destinations in the vicinity of the destination, and set the destination judgment area so that the boundary line passes through the determined dividing point. A region defining means for defining;
Target person position information acquisition means for acquiring position information indicating the position of the target person;
Determination that determines a destination visited by the target person based on which destination determination area of the plurality of defined destination determination areas includes the position indicated by the acquired position information of the target person Means,
A location information management device comprising: The area demarcating unit is configured to determine the destination and the destination for each of the plurality of destinations based on the information related to each of the plurality of destinations and indicating the relation between the destination and the target person. so as to divide the line segment at a split ratio in accordance with the related said subject to other destination that is present in the vicinity of the earth, No placement claim 1 Symbol and determining a position of the division point Location information management device. The area defining means defines a plurality of destination determination areas in association with each of a plurality of types of detection accuracy when detecting the position of the target person for each of the plurality of destinations.
The target person position information acquisition means acquires information indicating detection accuracy when the position information is detected together with position information indicating the position of the target person,
The determination means includes position information of the acquired subject, among the plurality of destination determining regions defined before reporting, based on the destination determining region associated with the type of detection accuracy of the acquired position information Te, the location information management apparatus according to claim 1 or 2, wherein the determining the destination the subject visited. The destination position information acquisition means acquires position information indicating positions of a plurality of different destinations for each of a plurality of subjects,
The area defining means defines a destination determination area for each of the plurality of destinations for which the destination position information acquisition means has acquired the position information for the target person, for each of the plurality of target persons.
The target person position information acquisition means acquires position information indicating the position of the target person for each of the plurality of target persons,
The determination means includes, for each of the plurality of target persons, position information acquired by the target person position information acquisition means for the target person, and a destination determination defined by the area definition means for the target person. The location information management device according to any one of claims 1 to 3 , wherein a destination visited by the target person is determined based on the area. Destination location information acquisition means for acquiring location information indicating the location of the destination for each of a plurality of destinations that can be visited by the target person,
A means for demarcating a destination determination area that includes the destination and does not include a destination other than the destination, for each of the plurality of destinations, based on the acquired positional information of the plurality of destinations. , Determine the position of the dividing point that divides the line segment connecting the destination and other destinations in the vicinity of the destination, and set the destination judgment area so that the boundary line passes through the determined dividing point. A region defining means for defining;
Target position information acquisition means for acquiring position information indicating the position of the target person, and a destination determination area of the plurality of destination determination areas defined by the position indicated by the acquired position information of the target person Determining means for determining a destination visited by the subject, based on whether
As a program to make the computer function as.

Images