JP2014137803A - Position display information providing device, user terminal, position display information providing method, position information acquisition control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately perform the mapping of a movement route and stay information on a map.SOLUTION: A position display information providing device includes: a position information storage part for storing position information including the position and measurement time of the positioning point of an object acquired by a position information acquisition part; normal position information extraction means for, on the basis of the position information stored in the position information storage part, determining the accuracy of the position of the positioning point, and for extracting the position information indicating the position whose accuracy is normal; and stay information extraction means for, on the basis of the position information extracted by the normal position information extraction means, extracting a non-movement point as the positioning point where the speed of movement is equal to or less than a predetermined threshold, and for, on the basis of the position information related to the non-movement point, searching the position of the staying place of the object.

Description

  The present invention relates to a technique for acquiring a position by GPS or the like and mapping the position on a map.

  With the spread of mobile terminals and smartphones equipped with a GPS function, map applications and the like that acquire their own location information and map the current location on a map are increasing. Since there is an error between the actual position and the position indicated in the position information obtained by GPS, there is an event that the mapping position deviates from the road.

  As a method of correcting this, the travel route is obtained from the past mobile terminal position obtained from GPS and the current mobile terminal position, compared with the stored route, and the route with the most similar travel route is determined as the use route. In addition, there is a technique for mapping the current mobile terminal position to a position where the distance difference from the determined use route is minimized (see Patent Document 1).

JP 2002-318127 A

  However, in the above conventional technique, since the route to the destination needs to be stored in advance, the movement route cannot be appropriately mapped on the map without setting the destination.

  In addition, there is a desire to map not only the travel route but also the point where the user stayed on the map as his own action history.

  This invention is made | formed in view of said point, and it aims at providing the technique which makes it possible to map a movement route and stay information on a map appropriately.

In order to solve the above problems, the present invention includes a position information storage unit that stores position information including the position of a positioning point of an object acquired by a position information acquisition unit and a measurement time;
Normal position information extraction means for determining the accuracy of the position of the positioning point based on the position information stored in the position information storage unit, and extracting position information indicating the position of normal accuracy;
Based on the position information extracted by the normal position information extraction means, a non-moving point that is a positioning point whose moving speed is a predetermined threshold or less is extracted, and based on the position information related to the non-moving point, It is comprised as a position display information provision apparatus provided with the stay information extraction means which calculates | requires the position of the stay place of a target object.

  For example, the normal position information extracting unit obtains the speed of movement of the positioning point from the position information stored in the position information storage unit, and corresponds to the positioning point when the speed is equal to or higher than a predetermined threshold. The position information to be determined is abnormal.

  In addition, the normal position information extraction unit obtains the actual height of the horizontal position using map information from the horizontal position of the positioning point included in the position information stored in the position information storage unit, for example, When the absolute value of the difference between the height of the positioning point included in the position information and the actual height is equal to or greater than a predetermined threshold, the position information is determined to be abnormal.

  In addition, the stay information extraction unit is, for example, based on position information related to the non-moving point, a non-moving point that is within a distance range of a predetermined threshold value or less and whose stay time is a predetermined threshold value or more. A set is determined, and the location of the place of stay is determined from the set of non-moving points.

  The stay information extracting means aggregates the non-moving points, which are positioning points whose moving speed is equal to or lower than a predetermined threshold, into a plurality of small stay groups, and sets one adjacent small stay group within a predetermined distance. Alternatively, it may be aggregated into a plurality of medium stay groups, and the position of the place of stay of the object may be obtained based on position information relating to a non-moving point in the medium stay group whose stay time is equal to or greater than a predetermined threshold. .

  The position display information providing device determines a threshold value used in the normal position information extraction unit and the stay information extraction unit according to a state of the object, and determines the determined threshold value as the normal position information extraction unit and the You may provide the threshold value adjustment means given to a stay information extraction means.

  In addition, the position display information providing device includes a movement route of the object based on the position information extracted by the normal position information extraction unit, and a position of a stay place of the object obtained by the stay information extraction unit. There may be provided position display information generating means for mapping information including the information on the map.

  In addition, the present invention can also be configured as a position display information providing method executed by the position display information providing apparatus and a program for causing a computer to function as each unit in the position display information providing apparatus.

The present invention also provides a position information acquisition unit that acquires position information;
A location information storage unit that stores location information acquired by the location information acquisition unit;
The position information included in the position information acquired by the position information acquisition unit is determined, and when the position accuracy is normal, the position information is stored in the position information storage unit. In the case of abnormality, a measurement control means for causing the position information acquisition unit to acquire position information again within a predetermined number of times, and
You may comprise as a user terminal characterized by including the positional information transmission means which transmits the positional information stored in the said positional information storage part to an external device.

  The present invention can also be configured as a program for causing a position information acquisition control method executed by the user terminal and a computer to function as each means in the user terminal.

  According to the present invention, it is possible to appropriately map a travel route and stay information on a map.

1 is a configuration diagram of a system according to an embodiment of the present invention. It is a flowchart which shows the whole process of the system which concerns on embodiment of this invention. It is a flowchart of an error elimination process. It is a flowchart of a stay information extraction process. It is a figure for demonstrating stay information extraction processing. It is a flowchart of the remeasurement determination process in a user terminal. It is a figure which shows the specific example of a position management system.

  Embodiments of the present invention will be described below with reference to the drawings. The embodiment described below is only an example, and the embodiment to which the present invention is applied is not limited to the following embodiment. For example, in the following embodiment, GPS is used as a means for acquiring position information, but this is only an example. The present invention is not limited to a specific type of means. For example, a position information system realized by a technology equivalent to GPS such as Galileo, a position information system using a wireless LAN access point or a mobile base station, etc. May be used.

(System configuration)
FIG. 1 shows a configuration example of a location management system according to an embodiment of the present invention. As shown in FIG. 1, the location management system according to the present embodiment has a configuration in which a user terminal 100, a location display information providing device 200, and a location display device 300 are connected via a communication network 400 such as the Internet. .

  The user terminal 100 according to the present embodiment is, for example, a smart phone, a tablet, a mobile phone, a small PC, or the like, and is a terminal capable of wireless communication that can be carried by the user. As illustrated in FIG. 1, the user terminal 100 includes a GPS information measurement unit 110, a measurement control unit 120, a position information storage unit 130, a position information transmission unit 140, and a position display unit 150. The outline of the function of each functional unit will be described below. Details will be described later in the explanation of the operation.

  The GPS information measurement unit 110 receives a signal from a GPS satellite based on an instruction from the measurement control unit 120 and calculates (acquires) position information from the received signal. That is, the GPS information measurement unit 110 is an example of a position information acquisition unit. In the present embodiment, the position information includes, for example, longitude / latitude obtained by positioning, altitude (altitude), horizontal accuracy, vertical accuracy, measurement time, the number of GPS satellites used for positioning, and the like. Horizontal accuracy and vertical accuracy are each represented by a distance. In other words, this means that there is an error of the degree represented by the distance, and the smaller the distance value, the higher the accuracy.

  The measurement control unit 120 instructs the GPS information measurement unit 110 to acquire position information at a predetermined time interval (e.g., every 100 seconds), acquires position information from the GPS information measurement unit 110, and also acquires position information. Whether the position information is normal or abnormal is determined based on the accuracy of the position (referred to as a positioning point) at, and if it is abnormal, re-measurement is instructed to the GPS information measurement unit 110. The remeasurement is performed a predetermined number of times when normal position information cannot be obtained.

  The position information storage unit 130 stores the position information determined to be normal by the measurement control unit 120. The location information transmission unit 140 transmits the location information stored in the location information storage unit 130 to the location information display providing apparatus 200 via the communication network 400. The timing for transmitting the position information can be set at a constant time interval, for example. Further, it may be transmitted at a timing when a predetermined number of pieces of position information are obtained. The position display unit 150 acquires the map information on which the position information is superimposed from the position display information providing apparatus 200 and displays it. Note that the user terminal 100 is not necessarily provided with the position display unit 150.

  The user terminal 100 according to the present embodiment can be realized by causing a terminal device including a computer function to execute a program describing the processing contents described in the present embodiment. That is, the function of each unit of the user terminal 100 executes a program corresponding to processing executed in each unit of the user terminal 100 using hardware resources such as a CPU, a memory, and a hard disk built in the computer. Can be realized. Further, the program can be recorded on a computer-readable recording medium (portable memory or the like), stored, or distributed. It is also possible to provide the program through a network such as the Internet or electronic mail.

  Further, the functional configuration and function names of the user terminal 100 are not limited to those shown in FIG. Any functional configuration may be used as long as it can realize the processing described in the present embodiment. For example, the user terminal 100 includes a position information acquisition unit that acquires position information, a position information storage unit that stores position information acquired by the position information acquisition unit, and a position information acquired by the position information acquisition unit. The accuracy of the included position is determined, and when the accuracy of the position is normal, the position information is stored in the position information storage unit, and when the accuracy of the position is abnormal, the range of a predetermined number of times It is possible to configure as an apparatus including a measurement control unit that causes the position information acquisition unit to acquire position information again and a position information transmission unit that transmits the position information stored in the position information storage unit to an external device. .

  The position display information providing apparatus 200 includes a position information acquisition unit 210, a position information storage unit 220, a position information analysis unit 230, and a position display information provision unit 240. The location information analysis unit 230 includes an error exclusion unit 231, a stay information extraction unit 232, and a threshold adjustment unit 233.

  The position information acquisition unit 210 acquires position information transmitted from the user terminal 100. The position information storage unit 220 stores the position information acquired by the position information acquisition unit 210. The location information analysis unit 230 reads the location information from the location information storage unit 220, and performs error elimination processing by the error exclusion unit 231 and stay information extraction processing by the stay information extraction unit 232. The position display information providing unit 240 creates position display information based on the information obtained by the position information analysis unit 230 and provides the position display information to the user terminal 100.

  Further, the threshold value adjustment unit 233 in the position information analysis unit 230 determines (adjusts) the threshold value used in the error exclusion unit 231 and the stay information extraction unit 232 based on, for example, an instruction from the outside or information from the user terminal 100. And provided to the error exclusion unit 231 and the stay information extraction unit 232.

  The position display information providing apparatus 200 according to the present embodiment can be realized by causing one or a plurality of computers to execute a program describing the processing contents described in the present embodiment. That is, the functions of each unit of the position display information providing apparatus 200 correspond to the processing performed by each unit of the position display information providing apparatus 200 using hardware resources such as a CPU, a memory, and a hard disk built in the computer. This can be realized by executing a program to be executed. Further, the program can be recorded on a computer-readable recording medium (portable memory or the like), stored, or distributed. It is also possible to provide the program through a network such as the Internet or electronic mail.

  In the case where the position display information providing apparatus 200 is configured by a plurality of computers, for example, the position information analysis unit 230 is configured by one computer (application server), and a function for mapping a travel route or stay information on a map, The function of transmitting the mapped map information to the user terminal 100 may be configured by another one or a plurality of computers.

  Further, the functional configuration and function names of the position display information providing apparatus 200 are not limited to those shown in FIG. Any functional configuration may be used as long as it can realize the processing described in the present embodiment. For example, the position display information providing apparatus 200 includes a position information storage unit that stores position information including a position of a positioning point of an object measured by GPS and a measurement time, and position information stored in the position information storage unit. Based on the position information extracted by the normal position information extraction, the normal position information extraction means for determining the position accuracy of the positioning point, and extracting the position information indicating the position of the normal accuracy A non-moving point that is a positioning point whose speed is equal to or less than a predetermined threshold, and a stay information extracting unit that obtains the position of the place of stay of the object based on position information related to the non-moving point. It can be realized as a device.

  The position display device 300 is a terminal such as a PC. Similar to the position display unit 150 in the user terminal 100, the position display device 300 has a function of acquiring and displaying map information on which position information is superimposed from the position display information providing device 200. The position display device 300 may be another user terminal 100 including the position display unit 150.

  In the present embodiment, the position display information providing apparatus 200 performs error elimination processing and stay information extraction processing to extract travel route information and stay information, but the user terminal 100 is similar to the position information analysis unit 230. A function unit that performs the above-described processing, performs error elimination processing and stay information extraction processing in the user terminal 100, extracts travel route information and stay information, creates map information that maps these information on the map, It may be displayed.

  In this case, the user terminal 100 can be called a position display information providing device. That is, the user terminal 100 at this time includes a position information storage unit that stores position information including the position of the positioning point of the object measured by GPS and the measurement time, and the position information stored in the position information storage unit. Based on the position information extracted by the normal position information extraction, the normal position information extraction means for determining the position accuracy of the positioning point, and extracting the position information indicating the position of the normal accuracy A position including a stay information extracting unit that extracts a non-moving point that is a positioning point having a speed equal to or less than a predetermined threshold and obtains a position of a staying place of the object based on position information related to the non-moving point It becomes a display information providing device. In this case, the user terminal 100 determines a position information acquisition unit that acquires position information from the GPS signal and a position accuracy included in the position information acquired by the position information acquisition unit, and the position accuracy is normal. In some cases, the position information is stored in the position information storage unit, and when the accuracy of the position is abnormal, the position information acquisition unit again acquires the position information within a predetermined number of times. Means may be further included.

(Operation of location management system)
FIG. 2 is a flowchart showing the overall operation of the location management system according to the present embodiment. With reference to FIG. 2, an overview of the overall operation of the location management system will be described.

  First, the GPS information measurement unit 110 of the user terminal 100 acquires position information from the GPS signal. The acquired position information is stored in the position information storage unit 130 (step 101). Here, the position information is acquired by the measurement control unit 120 at predetermined time intervals. Further, the measurement control unit 120 performs accuracy determination and remeasurement control.

  The location information transmission unit 140 periodically transmits the location information stored in the location information storage unit 130 to the location display information providing apparatus 200, for example (step 102).

  The location information acquisition unit 210 of the location display information providing apparatus 200 acquires the location information transmitted by the location information transmission unit 140 of the user terminal 100 and stores it in the location information storage unit 220 (step 103).

  Subsequently, the error elimination unit 231 in the location information analysis unit 230 reads the location information stored in the location information storage unit 220, determines normality, and is not normal (that can be estimated that there is an error, error location information (Referred to as “normal position information”) is extracted (step 104). The coordinates of a plurality of time-series positions related to the normal position information correspond to the movement route information of the user terminal 100. The latest normal position information corresponds to the current location information. With these pieces of information, display information about the movement route can be created.

  Next, the stay information extraction unit 232 extracts stay information based on the normal position information obtained by the error exclusion unit 231 (step 105).

  Next, the position display information providing unit 240 creates display information in which the travel route information, current location information, stay information, and other accompanying information are superimposed on the map (step 106). The display information is sent from the position display information providing unit 240 to the request source based on a request from the user terminal 100, the position display device 300, etc. (step 107), and the request source device (the user terminal 100, the position display device 300). Etc.) (step 108). Note that after the request from the user terminal 100, the position display device 300, etc. is sent to the position display information providing device 200, the processing from step 104 may be performed.

  In addition, the processing in steps 104 to 108 may be performed based on the accumulated position information after the target user has finished moving, or may be performed as needed from the position information accumulated at any time while the target user is moving. .

<About error elimination processing>
The error elimination process by the error elimination unit 231 in step 104 will be described in more detail with reference to the flowchart of FIG. The process shown in FIG. 3 is performed in order of measurement time for each piece of position information. Further, in the example described with reference to FIG. 3, each threshold is assumed to be predetermined.

  In FIG. 3, the error exclusion unit 231 acquires position information at a certain time (step 201), and first determines the accuracy of the positioning point (step 202). As described above, in the present embodiment, the position information acquired by the user terminal 100 and received and stored by the position display information providing apparatus 200 includes, for example, longitude / latitude obtained by positioning, altitude (altitude), This includes horizontal accuracy, vertical accuracy, measurement time, the number of GPS satellites used for positioning, and the like.

  In the positioning point accuracy determination at step 202 in the present embodiment, the horizontal accuracy (distance) or vertical accuracy (distance) for one piece of position information is a predetermined threshold value (threshold value determined by each of horizontal accuracy and vertical accuracy). If it is below, the position information is determined to be abnormal (determination 1). If the number of GPS satellites used for positioning is equal to or less than the threshold, it is determined that the position information is abnormal (determination 2).

  Furthermore, for the location information with normal horizontal accuracy, the map information is used to obtain the actual elevation at the measured longitude / latitude from the map information, and the elevation is compared with the elevation related to the positioning. If the absolute value of the difference between them is equal to or greater than a predetermined threshold, the position information is determined to be abnormal (determination 3). The map information may be acquired from an external server, or may be stored in the position display information providing device 200.

  In step 202, if any one of the above determinations 1 to 3 is abnormal, the position information may be determined to be abnormal, and if the specific determination of determinations 1 to 3 is abnormal, the position information is determined. Information may be determined to be abnormal.

  In step 203, the error exclusion unit 231 performs accuracy determination using two pieces of position information determined to be normal in step 202. The two pieces of position information are of continuous measurement time intervals with respect to the normal position information in step 202. That is, there is no position information determined to be normal in step 202 in the time between the measurement times of the two position information.

  In step 203, the speed of movement of the positioning point is obtained, and when the speed is equal to or higher than a predetermined threshold, it is determined that the position information corresponding to the positioning point is abnormal. For example, the error exclusion unit 231 retains the position information (referred to as first position information) determined to be normal in the determination in the previous step 203 in the memory, and the first position information and the current step. Using the position information (second position information) determined to be normal in the determination of 202, the second normal position information determined to be normal in the determination of step 202 is determined to be normal in step 203. Perform sex determination.

  Specifically, for example, the error exclusion unit 231 includes the positioning point position (longitude / latitude, altitude) related to the first position information, the positioning point position (longitude / latitude, altitude) related to the second position information, and the measurement time. Is used to obtain the horizontal speed (speed) and the vertical speed from the positioning point related to the first position information to the positioning point related to the second position information, and either is equal to or higher than a predetermined threshold (horizontal speed, vertical If it is a threshold value for each of the velocities, the second position information is determined to be abnormal and is excluded. In other words, a positioning point that has moved at an impossible speed is eliminated.

  In addition to the processing as described above, when the position information determined to be normal in step 202 becomes two, the two position information is determined by the horizontal speed and the vertical speed in step 203, If there is an abnormality, the process may exclude the two pieces of position information.

  From the position information determined to be normal in step 203, error-excluded position information is generated (step 204). The position information generated here is, for example, position information related to display (positioning point longitude / latitude, altitude, positioning time, etc.).

  In the present embodiment, since the movement route (the position related to the position information is connected in order of time) is created using the position information from which the error is eliminated, the map is accurately displayed without performing correction based on the map data. It is possible to map. Moreover, the stay information described later can be accurately obtained by using the position information from which the error is eliminated.

<Stay information extraction process>
Next, the stay information extraction process (step 105 in FIG. 2) executed by the stay information extraction unit 232 will be described with reference to the flowchart shown in FIG. 4 and FIG. The position information targeted by the stay information extraction process is normal position information obtained by the error elimination process. Further, the stay information extraction process may be performed after a predetermined number or more of normal position information is obtained. In the example described with reference to FIG. 4, each threshold value is set in advance.

  In step 301 of FIG. 4, first, the stay information extraction unit 232 eliminates the moving point. Here, the stay information extraction unit 232 relates to the positioning point related to certain position information (referred to as target position information), and the horizontal distance from the positioning point related to the position information one previous (measurement time one time before). The horizontal speed of the positioning point related to the target position information is calculated based on the measurement time and the distance, and if the horizontal speed is equal to or greater than a predetermined threshold, the positioning point related to the target position information is determined to be a moving point. To do. This moving point is distinguished (excluded) from the non-moving point from which the stay information is extracted. A set of non-moving points can be obtained by performing such processing for all pieces of target position information.

  The threshold here can be appropriately set according to the application target. For example, when obtaining stay information when a person moves by himself / herself, the threshold is set such that a point at a speed higher than the speed at which the person runs can be excluded as a moving point.

  The above processing is only an example of processing for obtaining a non-moving point. Further, the moving point / non-moving point may be obtained in consideration of the vertical speed. For example, if either the horizontal speed or the vertical speed is greater than or equal to a threshold value, the moving point is determined.

  FIG. 5 is a diagram for explaining processing in the stay information extraction unit 232. FIG. 5 shows a movement path of a certain user terminal 100. White circles and black circles indicate positioning points, white circles are movement points, and black circles are non-movement points. As illustrated in FIG. 5, the moving point indicated by the white circle is eliminated and the non-moving point indicated by the black circle is extracted by the processing of step 301 in the stay information extraction unit 232.

  In step 302 of FIG. 4, the stay information extraction unit 232 groups a series of non-moving points and aggregates them into small stay groups. When grouping, among the non-moving points, for example, those in which the horizontal distance (or both the horizontal distance and the vertical distance) between the non-moving points related to all the combinations is equal to or less than a predetermined threshold value. And Or it is good also considering the non-moving point which exists in the predetermined | prescribed range (example: in a circle of diameter X meter) as stay time below the predetermined time as a small stay group. The staying time here is the time between the oldest measurement time and the newest measurement time at the non-moving point within the predetermined range. Thereby, for example, as shown in FIG. 5, five small stay groups can be obtained.

  In step 303 of FIG. 4, the stay information extraction unit 232 aggregates adjacent small stay groups within a specified distance (a predetermined threshold) into the middle stay group. Here, for example, the stay information extraction unit 232 calculates the center-of-gravity position of the non-moving point for each small-stay group, and sets the set of small-stay groups whose distance between the center-of-gravity positions is a predetermined threshold or less as the middle stay group. . In the example shown in FIG. 5, two medium stay groups are shown. Since the small stay group is within the predetermined distance range, the medium stay group obtained as described above is also within the distance range equal to or less than the predetermined threshold value. It should be noted that one middle stay group may be obtained by further adding a condition that one middle stay group is within a predetermined distance range (eg, within a circle having a diameter of Y meters).

  Then, in step 304 of FIG. 4, the stay information extraction unit 232 selects a stay group that has stayed for a specified time or more as a stay group. Here, for example, among the non-moving points in the middle stay group, the time between the oldest measurement time and the latest measurement time (the difference between these measurement times) is obtained, and this time A staying group that is longer than the specified time (threshold) is selected as a staying group. In addition, when it exists in a fixed location more than regulation time, when the said location is a station, a bus stop, etc., it is good also as removing these using GIS information.

  Then, the stay information extraction unit 232 obtains the center of gravity of the position of the non-moving point in the stay group, and sets it as the stay information that is the position of the stay place (step 305).

  As described above, the stay information can be extracted according to the purpose by using the speed, distance, and time separately to extract the stay information. That is, in the removal of a moving point, for example, a moving object can be excluded as a moving point, while a moving object is a non-moving point. In other words, by appropriately setting the threshold value, it is possible to arbitrarily set what moving points are excluded. In addition, regarding stays, for example, whether a person stays in front of a store (a narrow distance range) for a few seconds (short time) or stays in a park (a wide distance range) for a predetermined time (long time) It is possible to arbitrarily determine whether or not to make a stay a game by setting threshold values such as a specified time and a specified distance.

  The stay information extraction process described above is only an example. For example, after extracting non-moving points, a group of non-moving points having a stay time of a predetermined time or more within a predetermined distance range can be determined as a stay group without being divided into small stay groups.

<Remeasurement judgment processing>
Next, the remeasurement determination process executed in the user terminal 100 will be described.

  Since acquisition of position information by GPS consumes a large amount of power, it is desirable that the frequency of GPS information measurement in the user terminal 100 is low. However, if the frequency of GPS information measurement is low and the positional information obtained is large and the positional information is eliminated, the number of positional information decreases, which hinders the display of travel routes and the calculation of stay information. There is a possibility of coming. Therefore, in the present embodiment, the user terminal 100 confirms the accuracy of the position information obtained by the GPS, and if abnormal, the measurement is performed within a predetermined number of times until normal position information is obtained. Is going to do.

  The above processing will be described with reference to the flowchart of FIG. As described above, in the user terminal 100, the GPS information measuring unit 110 performs measurement at regular time intervals, but FIG. 6 shows one arrival of the constant time.

  When a certain time comes, the measurement control unit 120 instructs the GPS information measurement unit 110 to measure GPS information, and the GPS information measurement unit 110 acquires position information from the GPS signal (step 401).

  The measurement control unit 120 determines the accuracy of the positioning point (step 402). The positioning point accuracy determination processing here is the same as the positioning point accuracy determination processing in the position display information providing apparatus 200 described in step 202 of FIG. 3. However, since the accuracy determination in step 402 is to determine whether or not to remeasure, the threshold value may be relaxed rather than the system determination in step 202. That is, even if the accuracy is lower than that in step 402, it may be determined as normal.

  If it is determined to be normal in step 402, the measurement control unit 120 determines accuracy between positioning points (step 403). The accuracy determination process between positioning points here is the same as the accuracy determination process between positioning points in the position display information providing apparatus 200 described in step 203 of FIG. However, since the accuracy determination in step 403 is to determine whether or not to re-measure, the threshold value may be relaxed rather than the accuracy determination in step 203. That is, even if the accuracy is lower than that in step 403, it is determined as normal.

  Note that the threshold values in step 402 and step 403 may be the same as the threshold values in step 202 and step 203, and in this case, the processing (errors) in step 202 and step 203 in the position display information providing apparatus 200 The exclusion process may not be performed.

  If it is determined in step 402 or step 403 that there is an abnormality, the measurement control unit 120 checks whether the number of re-measurements is within the specified number of times (step 404). Instructs the information measurement unit 110 to perform remeasurement. For example, if the specified number of times is 3, the re-measurement is performed because the number of re-measurements at the time when it is determined to be abnormal for the first time after a certain time has elapsed is 0. In this case, the number of remeasurements is 1 after remeasurement.

  Thereafter, re-measurement is performed until both steps 402 and 403 are determined to be normal or the number of re-measurements reaches a specified number. If the number of re-measurements reaches the specified number without being determined as normal, position information cannot be acquired at this opportunity (an opportunity to visit at regular time intervals).

  When it is determined to be normal in step 403, the measurement control unit 120 stores the position information determined to be normal in the position information storage unit 130.

<About threshold tuning>
Each threshold value used in the error exclusion unit 231 and the stay information extraction unit 232 in the position display information display providing device 200 may be determined by the threshold adjustment unit 233 according to a target for which a travel route or stay information is to be obtained.

  For example, the user terminal 100 includes an acceleration sensor, a gyro, or the like, and the user terminal 100 determines whether the user terminal 100 is in a walking state or is on a vehicle such as a car by the sensor. The information (separate between walking and boarding) is transmitted to the position display information display providing device 200 together with the position information. In the position display information display providing apparatus 200, the threshold adjustment unit 233 refers to this information and provides the threshold for walking or the threshold for riding to the error exclusion unit 231 and the stay information extraction unit 232.

  For example, in the error elimination process, it is considered that accuracy during walking is better than that during boarding, so the threshold during boarding is relaxed. Further, for example, in the error elimination process using two pieces of position information, the threshold value of the speed at the time of boarding is made larger than that at the time of walking. In addition, for example, in the calculation of the non-moving point, the speed threshold value at the time of boarding is made larger than at the time of walking.

  In addition, the measurement control unit 120 of the user terminal may determine a threshold value used in normality / abnormality determination in the remeasurement determination in the user terminal 100 using the determination information.

  As described above, in addition to automatically determining the threshold value by determining the state of the user terminal 100, in a terminal for displaying information (user terminal 100, position display device 300, etc.) (Example: walking, getting on, etc.) Instructing the position display information providing apparatus 200 whether or not to display the position, and in the position display information providing apparatus 200, the threshold adjustment unit 233 sets the threshold based on the contents of the instruction. You may decide. Moreover, it is good also as instruct | indicating a threshold value directly at the time of a position display request | requirement in the terminal (user terminal 100, position display apparatus 300, etc.) which displays map information. Thereby, the user can display an appropriate travel route and stay information according to the purpose.

  When the user terminal 100 is not equipped with a sensor such as an acceleration sensor or a gyro, such as when the sensor such as an acceleration sensor or a gyro cannot be used, the threshold adjustment unit 233 determines whether the user can use the moving speed obtained from the position information. May be determined (whether walking or running, riding in a car, etc.), and a threshold value adapted to the state may be used.

  Further, the determined state may be displayed together with the display of the position information. For example, the section determined to be “walking” is displayed so that it can be understood as “walking”, and the section determined to be movement by “car” is displayed so that it can be understood that it is movement by “car”. To do.

  At this time, the displayed state may be changed by the user. For example, when a certain section is displayed as movement by “car”, but the movement is actually by “train”, the state is changed to movement by “train”. In accordance with the change instruction, the threshold adjustment unit 233 determines a threshold corresponding to the movement on the “train”, the movement route and the stay information are calculated using the threshold, and the movement route and the stay information are displayed. Done.

(Specific system example)
FIG. 7 shows a specific example of the location management system according to the present embodiment. In FIG. 7, the client 10 corresponds to the user terminal 100. A system including the DB server 12, the position information AP server, the WEB / AP server 11, the external map service server 14, and the like corresponds to the position display information providing apparatus 200.

  In the position management system shown in FIG. 7, the client 10 periodically collects position information (step 1), accumulates it as a position information table (step 2), and uploads the position information to the regular WEB / server 11. (Step 3). The WEB / server 11 stores the position data in the DB server 12 (step 4).

  When the location information display request is transmitted from the client 10 to the WEB / AP server 11 (step 5), the location information AP server 13 performs noise removal (the above-described error elimination processing), stay information extraction processing, The location information is acquired in the WEB / AP server 11 (steps 6 to 9). The WEB / AP server 11 encodes the location information for the map service (step 10), the external map service server 14 acquires the location information (step 11), and the client 10 creates a map on which the location information is overlaid. Obtain (step 12) and display (step 13).

(Application example)
The technique shown in this embodiment can be applied to various cases. For example, the present invention can be applied to a case where the travel route of oneself or another person during travel is mapped on a map. More specifically, for example, in the case of a school excursion, when students act in multiple groups, the data that students can refer to are only the groups to which they belong, and the data that teachers can refer to all groups ( All students). As a result, the student can check the process and look back at each group. In addition, the teacher can check the behavior of the student in real time. As described above, since the travel related person can confirm the behavior of the traveler in real time, it can be applied to various services.

  In addition, the behavior management of employees at field companies such as gas companies and water departments, etc. that conduct field operations, confirmation of the current location and travel route of commercial vehicles at taxi companies, child watching services, mountain climbing The technique of the present embodiment can also be applied to monitoring a person's movement route.

  Moreover, after displaying the map which mapped the movement path | route and the stay place on the user terminal 100, it is good also as displaying the information regarding a stay place by clicking a stay place.

  The information regarding the place of stay is, for example, a photograph taken at the point. It is also possible to write impressions of the place of stay, create a travel book and share it. Moreover, it is good also as displaying the street view about a stay place. It is also possible to provide a service such as clicking on another person's place of stay to incorporate it into his / her travel destination candidate. Also, you may be able to send a picture taken by yourself or a postcard of the POI picture. Furthermore, it is good also as displaying an advertisement in the vicinity by clicking the point where many people stayed.

  The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the claims.

100 User terminal 110 GPS information measurement unit 120 Measurement control unit 130 Location information storage unit 140 Location information transmission unit 150 Location display unit 200 Location display information providing device 210 Location information acquisition unit 220 Location information storage unit 230 Location information analysis unit 231 Error elimination Unit 232 stay information extraction unit 233 threshold adjustment unit 240 position display information providing unit 300 position display device 400 communication network

Claims (12)

A position information storage unit that stores position information including the position of the positioning point of the object acquired by the position information acquisition unit and the measurement time;
Normal position information extraction means for determining the accuracy of the position of the positioning point based on the position information stored in the position information storage unit, and extracting position information indicating the position of normal accuracy;
Based on the position information extracted by the normal position information extraction means, a non-moving point that is a positioning point whose moving speed is a predetermined threshold or less is extracted, and based on the position information related to the non-moving point, A stay information extraction means for obtaining the location of the place of stay of the object;
A position display information providing device comprising: The normal position information extracting means includes
The speed of movement of the positioning point is obtained from the position information stored in the position information storage unit, and when the speed is equal to or higher than a predetermined threshold, the position information corresponding to the positioning point is determined to be abnormal. The position display information providing device according to claim 1. The normal position information extracting means includes
From the horizontal position of the positioning point included in the position information stored in the position information storage unit, the actual height of the horizontal position is obtained using map information, the height of the positioning point included in the position information, The position display information providing apparatus according to claim 1 or 2, wherein the position information is determined to be abnormal when the absolute value of the difference from the actual height is equal to or greater than a predetermined threshold value. The stay information extracting means includes:
Based on the position information related to the non-moving point, a set of non-moving points that are within a distance range equal to or smaller than a predetermined threshold and whose staying time is equal to or longer than the predetermined threshold are determined, and the set of non-moving points The position display information providing apparatus according to any one of claims 1 to 3, wherein the position of the staying place is obtained from the position. The stay information extracting means includes:
The non-moving points that are positioning points whose moving speed is a predetermined threshold value or less are aggregated into a plurality of small stay groups, and adjacent small stay groups within a predetermined distance are aggregated into one or a plurality of medium stay groups. The position of the place of stay of the object is obtained based on the position information related to the non-moving point in the middle stay group whose stay time is equal to or greater than a predetermined threshold value. The position display information providing device according to Item 1. A threshold value adjusting means for determining a threshold value used in the normal position information extracting means and the stay information extracting means according to the state of the object, and providing the determined threshold value to the normal position information extracting means and the stay information extracting means; The position display information providing apparatus according to claim 1, further comprising: a position display information providing apparatus according to claim 1. A position for mapping on the map information including the moving path of the object based on the position information extracted by the normal position information extracting means and the position of the place of stay of the object determined by the stay information extracting means The position display information providing apparatus according to any one of claims 1 to 6, further comprising display information generation means. A position display information providing method executed by a position display information providing apparatus including a position information storage unit that stores position information including a position of a positioning point of an object acquired by a position information acquisition unit and a measurement time,
A normal position information extraction step of determining the accuracy of the position of the positioning point based on the position information stored in the position information storage unit, and extracting position information indicating a position of normal accuracy;
Based on the position information extracted by the normal position information extraction step, a non-moving point that is a positioning point whose moving speed is a predetermined threshold or less is extracted, and based on the position information related to the non-moving point, A stay information extraction step for obtaining the location of the place of stay of the object;
The position display information provision method characterized by comprising.   The program for functioning a computer as each means in the position display information provision apparatus of any one of Claims 1 thru | or 7. A location information acquisition unit for acquiring location information;
A location information storage unit that stores location information acquired by the location information acquisition unit;
The position information included in the position information acquired by the position information acquisition unit is determined, and when the position accuracy is normal, the position information is stored in the position information storage unit. In the case of abnormality, a measurement control means for causing the position information acquisition unit to acquire position information again within a predetermined number of times, and
A user terminal comprising: position information transmitting means for transmitting position information stored in the position information storage unit to an external device. A position information acquisition control method executed by a user terminal including a position information acquisition unit that acquires position information and a position information storage unit that stores the position information acquired by the position information acquisition unit,
The position information included in the position information acquired by the position information acquisition unit is determined, and when the position accuracy is normal, the position information is stored in the position information storage unit. If it is abnormal, a measurement control step that causes the position information acquisition unit to acquire position information again within a predetermined number of times, and
A position information acquisition control method comprising: a position information transmission step of transmitting the position information stored in the position information storage unit to an external device.   The program for functioning a computer as each means in the user terminal of Claim 10.

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