JP2013025537A - Position monitoring system, position monitoring method and position monitoring program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and accurately set the propriety of a mobile range relating to a position monitoring object.SOLUTION: A computer 100 is configured to execute: processing of receiving position information to be transmitted from each terminal 1, and collating the position information with an area information table to specify and store the location area of the terminal 1 in a storage part 101; processing of reading the information of each location area of the prescribed terminal 1 stored in the storage part 101, and calculating the location frequency of the terminal in each area, and comparing the location frequency with a predetermined reference to specify and store the area whose location frequency is equal to or more than the predetermined reference as a movable range of the terminal 1; and processing of collating the latest position information transmitted from the terminal 1 with the area information table to specify the location area where the terminal 1 is located, and determining whether or not the location area is pertinent to the movable range stored about the terminal 1, and determining that any abnormality is generated in the monitoring object when the location area is not pertinent to the movable range, and performing a predetermined prescribed procedure.

Description

  The present invention relates to a position monitoring system, a position monitoring method, and a position monitoring program. More specifically, the present invention relates to a technique that can set the correctness of a moving range related to a position monitoring target efficiently and accurately.

  As a method for detecting children's lost children, elderly people's traps, theft of things, etc., it can be targeted by having a portable terminal that can be positioned by GPS or a mobile phone base station, or by installing it on an object. A position monitoring system for monitoring the position of a person or an object has been proposed.

  As such a conventional technique, for example, a satellite positioning unit that performs satellite positioning and detects latitude / longitude information of a current location, a communication unit that performs wireless communication, and a mobile terminal device capable of transmitting current location information; In a mobile position monitoring system comprising a center device that receives position information transmitted from a mobile terminal apparatus and monitors the position of the mobile terminal apparatus based on the position information, the mobile terminal apparatus comprises: When information of at least one reporting area for reporting is stored, and based on the latitude and longitude information detected by the satellite positioning means, when entering the reporting area or exiting the reporting area There has been proposed a mobile body position monitoring system (see Patent Document 1) characterized by comprising means for reporting the information together with current position information via the wireless means.

  In addition, a GPS receiving unit that receives a GPS signal from a GPS satellite and a receiving unit that receives a base station signal from a mobile phone base station, positioning based on the received GPS signal and / or the base station signal A mobile terminal possessed by the mobile body for transmitting a signal; a positioning signal based on the GPS signal and / or the base station signal transmitted by the mobile terminal; and the mobile body based on the received positioning signal A position information calculation center for calculating the position information of the mobile body, and a mobile body monitoring center for searching the address position information of the mobile body in stages based on the calculated position information and monitoring the position of the mobile body. In addition, a moving body position monitoring system (see Patent Document 2) has also been proposed.

  In addition, an action area, which is a specific area related to the movement range of a mobile information terminal equipped with a GPS signal processing unit for measuring a current position using a GPS satellite signal, is set in association with a predetermined base station. The mobile information terminal is discriminated based on the communication between the corresponding base station and the mobile information terminal whether the mobile information terminal is located in the set action area, and the location of the mobile information terminal is determined by the action area A mobile information terminal position monitoring method (see Patent Document 3) is also proposed in which the position of the mobile information terminal is detected by positioning by the GPS signal processing unit when it is discriminated that it deviates from Yes.

  Moreover, even if a child becomes one, an automatic notification system (see Patent Document 4) that prevents an accident or an accident from being involved in advance and a movement of a mobile terminal to be monitored are accurately monitored. A monitoring system (see Patent Document 5) that can detect abnormal movements at an early stage has also been proposed.

JP 2001-14592 A JP 2002-209245 A JP 2007-134760 A JP 2008-234314 A JP 2008-252798 A

  As mentioned above, in the case where the person or thing carrying the mobile terminal falls into an abnormal situation (lost child, theft, etc.), but cannot judge the situation by itself and perform notification or the like, It is possible to detect an abnormality on the monitoring center side based on the current position of the mobile terminal and to connect to a predetermined user or to respond to a quick search.

  However, in order to detect an abnormality with high accuracy in such conventional position monitoring, it is necessary to appropriately set an appropriate movement range for each monitoring target. Without proper pre-settings, frequent alerts for people and things located in a problem-free location or starting a search response can lead to complicated and inefficient situations for both the user and the monitoring center. It can be created.

  However, it is very difficult for the user to predefine the above movement range after accurately grasping the movement pattern of the person or object to be monitored. Therefore, conventionally, position monitoring is performed in a state where there is no appropriate prior setting, and problems derived from frequent occurrences such as unnecessary alerts and search responses remain.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a technique capable of efficiently and accurately setting whether or not a moving range relating to a position monitoring target is correct.

  The position monitoring system of the present invention that solves the above problem is a computer system that obtains position information from a terminal attached to a monitoring target and monitors whether the monitoring target is located within a movable range, and communicates with the terminal. A communication unit, a storage unit storing an area information table storing information of each area that divides a predetermined monitoring area, and position information transmitted from each terminal are received, and the position information is stored in the area information table. The process of collating and identifying the location area of the corresponding terminal and storing it in the storage unit, reading the information of each location area of the predetermined terminal accumulated in the storage unit, calculating the location frequency of the corresponding terminal in each area, A process of comparing the location frequency with a predetermined standard, specifying an area with a location frequency equal to or higher than the predetermined standard as a movable range in the corresponding terminal, and storing it in the storage unit, and transmitted from the terminal The latest location information is collated with the area information table to identify the location area where the terminal is located, and determine whether the location area corresponds to the movable range stored in the storage unit for the terminal. And a calculation unit that executes a process of determining that an abnormality has occurred in the monitoring target and performing a predetermined procedure when the location area does not fall within the movable range.

  In addition, the position monitoring method of the present invention obtains the position information from a terminal attached to the monitoring target, and monitors a communication unit that communicates with the terminal in order to monitor whether the monitoring target is within a movable range, a predetermined monitoring A computer having a storage unit storing an area information table storing information of each area divided into regions receives position information transmitted from each terminal, and matches the position information with the area information table. The process of identifying the location area of the terminal and storing it in the storage unit, reading the information of each location area of the predetermined terminal accumulated in the storage unit, calculating the location frequency of the corresponding terminal in each area, Compare the reference, specify the area where the location frequency is greater than or equal to the predetermined reference as a movable range in the corresponding terminal and store it in the storage unit, and the latest location information transmitted from the terminal By collating with the area information table, the location area in which the corresponding terminal is located is specified, it is determined whether the location area corresponds to the movable range stored in the storage unit for the corresponding terminal, and the location area is movable When it does not fall within the range, it is determined that an abnormality has occurred in the monitoring target, and processing for performing a predetermined procedure is executed.

  In addition, the position monitoring program of the present invention obtains the position information from a terminal attached to the monitoring target and monitors whether the monitoring target is within a movable range, a communication unit that communicates with the terminal, and a predetermined monitoring A computer having a storage unit storing an area information table storing information of each area divided into regions is received with position information transmitted from each terminal, and the position information is checked against the area information table. The process of identifying the location area of the terminal and storing it in the storage unit, reading the information of each location area of the predetermined terminal accumulated in the storage unit, calculating the location frequency of the corresponding terminal in each area, Compares with the reference, specifies the area where the location frequency is equal to or higher than the predetermined reference as a movable range in the corresponding terminal and stores it in the storage unit, and the latest position transmitted from the terminal Information is collated with the area information table, the location area where the corresponding terminal is located is identified, it is determined whether the location area corresponds to the movable range stored in the storage unit for the corresponding terminal, and the location area Is not within the movable range, it is determined that an abnormality has occurred in the monitoring target, and a predetermined procedure is executed.

  According to the present invention, it is possible to efficiently and accurately set the correctness of the moving range related to the position monitoring target.

It is a figure which shows the example of a network structure containing the position monitoring system of this embodiment. It is a figure which shows the structural example of the portable terminal information table of this embodiment. It is a figure which shows the structural example of the area information table of this embodiment. It is a figure which shows the example of a definition of the area in this embodiment. It is a figure which shows the structural example of the positional infomation history table of this embodiment. It is a figure which shows the structural example of the area frequency table of this embodiment. It is a flowchart which shows the process sequence example of the position monitoring method in this embodiment. It is a figure which shows the count example of the frequency in this embodiment. It is a figure which shows the example of a setting of the movable range by the frequency in this embodiment. It is a figure which shows the example of a change of the movable range by terminal operation in this embodiment.

--- System configuration ---
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram including a position monitoring system 100 of the present embodiment. A position monitoring system 100 (hereinafter, system 100) shown in FIG. 1 is a computer system that enables efficient and accurate setting of whether or not a moving range relating to a position monitoring target is set, and provides a position monitoring service to a customer as an example. Server devices managed by various companies, organizations, etc. can be assumed.

  In the present embodiment, the portable terminal 1 that is carried by a person to be monitored or installed on an object to be monitored, and the system that receives position information transmitted from the portable terminal 1 and monitors its position 100 is configured to be communicable with 100.

  The portable terminal 1 can measure the position (eg, latitude, longitude) of the terminal by the GPS satellite 5 or the base station 2, via wireless communication with the mobile communication network 3 or wired communication in the network 120. Can communicate with system 100. The mobile terminal 1 may be a mobile phone, a smartphone, or the like as well as a terminal developed exclusively, and in addition to a communication function for performing communication with the system 100, information display may be performed for a mobile terminal holder. It has a user interface such as a display device that can be used and an input device that can be used by a portable terminal holder.

  On the other hand, the hardware configuration of the system 100 is as follows. The system 100 reads into the memory 103 a storage unit 101 composed of a suitable non-volatile storage device such as a hard disk drive, a memory 103 composed of a volatile storage device such as a RAM, and a program 102 held in the storage unit 101. And the necessary functional units are implemented, and the arithmetic unit 104 such as a CPU that performs overall control of the device itself, the output unit 105 such as a display that displays processing data, and the network 120 are connected to the mobile terminal 1 and the like. The communication part 106 which bears a communication process with is provided. In the storage unit 101, a program 102 for implementing functions necessary for the position monitoring system of the present embodiment, a portable terminal information table 125, an area information table 126, a position information history table 127, and an area frequency table. 128 is stored at least.

  Then, the function with which the position monitoring system 100 of this embodiment is provided is demonstrated. As described above, the functions described below are implemented by executing the program 102 included in the system 100, for example.

  The system 100 receives the position information transmitted from each mobile terminal 1 via the communication unit 106, collates the position information with the area information table 126, identifies the location area of the mobile terminal 1 and stores it. The function of storing in the position information history table 127 of the unit 101 is provided.

  Further, the system 100 reads the information of each location area of the predetermined mobile terminal 1 accumulated in the location information history table 127 of the storage unit 101, calculates the location frequency of the corresponding mobile terminal 1 in each area, and calculates the location A function of comparing the frequency with a predetermined standard, specifying an area having a location frequency equal to or higher than the predetermined standard as a movable range in the mobile terminal 1 and storing the area in the storage unit 101 is provided.

  In addition, the system 100 collates the latest location information transmitted from the mobile terminal 1 with the area information table 126, identifies the location area where the mobile terminal 1 is located, and the location area corresponds to A function for determining whether the mobile terminal 1 falls within the movable range stored in the storage unit 101, and when the location area does not fall within the movable range, determines that an abnormality has occurred in the monitoring target and performs a predetermined procedure. Is provided.

  Note that the system 100 stores position information in the position information history table 127 of the storage unit 101 for a predetermined area and sets the location frequency calculation target area, or the area corresponding to the latest position information is movable. It is preferable to have a function of accepting designation from the portable terminal 1 for the area to be determined whether or not it falls within the range, and storing it in the storage unit 101 in association with the portable terminal 1.

  In this case, the system 100 collates the position information transmitted from the mobile terminal 1 with the area information table 126, specifies the location area where the mobile terminal 1 is located, and the specified location area is the corresponding mobile phone. When the terminal 1 corresponds to the calculation target area and the determination target area stored in the storage unit 101, information on the location area is stored in the location information history table 127 of the storage unit 101, and the location area is the corresponding mobile phone. It is determined whether the terminal 1 corresponds to the movable range stored in the storage unit 101.

  Further, the system 100 collates the position information transmitted from the mobile terminal 1 with the area information table 126, specifies the location area where the mobile terminal 1 is located, and the specified location area is the corresponding mobile terminal. 1 corresponds to the calculation target area stored in the storage unit 101 with respect to 1, when the determination target area does not correspond, the information on the location area is stored in the location information history table 127 of the storage unit 101, the location area is It is preferable that it is not determined whether the mobile terminal 1 corresponds to the movable range stored in the storage unit 101.

  In addition, as a result of determining whether or not the location area corresponds to the movable range, the system 100 determines that the location area does not correspond to the movable range and an abnormality has occurred in the monitoring target. On the other hand, a function of transmitting a notification of a confirmation request regarding the presence / absence of an abnormality via the communication unit 106 and outputting an alert to a predetermined address when a response indicating no abnormality is not obtained from the mobile terminal 1 is provided. Prepare.

  In addition, the system 100 transmits a confirmation request notification regarding the presence / absence of abnormality to the corresponding mobile terminal 1 via the communication unit 106, and when the response indicating that there is no abnormality is obtained from the corresponding mobile terminal 1, the corresponding It is preferable that the portable terminal 1 has a function of storing information in the storage unit 101 as a temporary movable range that is valid for a certain period of time.

  In this case, the system 100 collates the latest location information transmitted from the mobile terminal 1 with the area information table 126, identifies the location area where the mobile terminal 1 is located, and the location area is If the mobile terminal 1 falls within the temporary movable range stored in the storage unit 101, it is determined that no abnormality has occurred in the monitoring target.

--- Data structure example ---
Next, an example of the data structure in the table used by the system 100 of this embodiment will be described. The storage unit 101 includes a mobile terminal information table 125 that stores information for communicating with the mobile terminal 1 and information on users of the mobile terminal 1, an area information table 126 that stores area definitions, and the mobile terminal 1. A location information history table 127 that stores a history of location information and an area frequency table 128 that stores the frequency at which the past location of the mobile terminal 1 belongs to each area is stored. Hereinafter, a configuration example will be shown for each table.

  FIG. 2 shows a configuration example of the mobile terminal information table 125. The portable terminal information table 125 includes a terminal identifier 31-1 uniquely assigned to each portable terminal 1, information unique to the portable terminal such as MDN, information for communicating with the portable terminal 1 such as a communication protocol, and the portable terminal. Terminal information 31-2 including one latest position, user information 31-3 that is information about the user such as a user's name, address, and contact information, and monitoring setting information 31 that is setting information about monitoring -4 and a collection of records including the mobile terminal information update date 31-5 that is the record update date. The monitoring setting information 31-4 includes a frequency target setting flag indicating whether or not the position information generated for the predetermined area is to be a location frequency calculation target, and the position information generated for the predetermined area is abnormal / It includes information such as a monitoring setting flag for setting whether or not to be a normal determination target, and a threshold value (predetermined criterion) regarding the location frequency.

  FIG. 3 shows a configuration example of the area information table 126. The area information table 126 is a table that stores definition information related to areas defined by the system 100 for each fixed area, for example. In the present embodiment, as an example, it is assumed that the area is a rectangular area. Of course, the shape of the area is not limited to this, and various shapes can be adopted according to the situation and necessity.

  The area information table 126 includes an area identifier 32-1 uniquely assigned to each area, a start point position 32-2, which is the latitude and longitude of the start point (eg, the top left corner of the rectangular area) in each area, It is composed of a record that includes the end point position 32-3 that is the latitude and longitude of the end point of each area (eg, the vertex in the lower right corner of the rectangular area) and the area information update date and time 32-4 that is the update date and time of the record. Yes.

  FIG. 4 shows an example of area definition in this embodiment. Individual rectangles divided in a grid shape in the figure are areas, which are areas separated by a predetermined interval of latitude and longitude. In the lower left area, the latitude / longitude coordinates of the start point are (X0, Y0), the latitude / longitude coordinates of the end point are (X1, Y1), the latitude X is X0 ≦ X <X1, and the longitude Y is Y0. Position information satisfying ≦ Y <Y1, that is, coordinates (X, Y) belong to the area. Hereinafter, the position where the coordinates are (Xn, Yn) is described as P (Xn, Yn), the area where the start point is P (Xs, Ys) and the end point is P (Xe, Ye) is A ((Xs, Ys). ), (Xe, Ye)).

  In the area information table 126, each area record may include information on a higher area composed of a plurality of lower areas including its own area, and the area may have a hierarchical structure. For example, when the system 100 collates the position information with the area information table 126 to identify the corresponding area, the system 100 first identifies the upper area in which the corresponding position information is included in the range, narrows down the lower area candidates, If the corresponding area is identified by comparing the information of each lower area and the position information above, the area identification processing speed can be improved even in a situation where there are many areas.

  FIG. 5 shows a configuration example of the position information history table 127. The location information history table 127 is an identifier of the mobile terminal 1 that has transmitted the location information, and is a terminal identifier 33-1 that is common to the mobile terminal information table 125, and latitude / longitude that is location information measured by the mobile terminal 1. A positioning position 33-2 indicating the location, and an identifier of the area to which the positioning position 33-2 belongs, and an area identifier 33-3 common to the area information table 126, and whether the position information is to be calculated for location frequency The frequency target flag 33-4 that is set as “No” and the non-monitoring flag 33 that is set as to whether or not the corresponding area of the area identifier 33-3 is the movable range within a predetermined time regardless of the location frequency until then. -5 and a set of records including the location information history update date and time 33-6 that is the record update date and time.

  FIG. 6 shows a configuration example of the area frequency table 128. The area frequency table 128 is an identifier of the corresponding mobile terminal 1, is a terminal identifier 34-1 that is common to the mobile terminal information table 125, and an identifier of the area where the location frequency is calculated. This is a set of records including a common area identifier 34-2, an area frequency 34-3 that is a location frequency value, and an area frequency update date and time 34-4 that is a record update date and time.

--- Processing procedure example ---
Hereinafter, the actual procedure of the position monitoring method in the present embodiment will be described with reference to the drawings. Various operations corresponding to the position monitoring method described below are realized by a program that the system 100 reads into a memory or the like and executes. And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

  FIG. 7 is a flowchart showing an example of a processing procedure of the position monitoring method in the present embodiment. Here, in addition to the processing in the system 100, processing in the portable terminal 1 will be described. First, an administrator of the mobile terminal 1 needs to register necessary information in the storage device 101 of the system 100. Necessary information refers to information necessary for identifying and communicating the portable terminal 1 in the portable terminal information table 125 (eg, terminal identifier, information unique to a portable terminal such as MDN, information such as a communication protocol), Information about the user (eg name, address, contact information, etc.). Further, the necessary information may include information related to the definition of the area (eg, area identifier, start point, end point position, etc.) in the area information table 126. In that case, the user of the portable terminal 1 sets the area definition itself. Of course, the definition of the area is determined by default, and setting by the user of the mobile terminal 1 may not be necessary.

  The mobile terminal 1 receives user input of such necessary information with an appropriate input device (such as a keyboard), and sends a registration request including the relevant information via the base station 2, the mobile communication network 3, and the network 120 described above. It is sent to the system 100 (s100).

  On the other hand, the system 100 receives the registration request via the communication unit 106 and registers, for example, information related to the mobile terminal 1 included in the registration request in the mobile terminal information table 125 (s101). Of course, not only such information registration processing, but also a request for searching, updating, and deleting information can be sent from the portable terminal 1 to the system 100, and the system 100 can respond to the request.

  Thereafter, the mobile terminal 1 measures its position by the GPS satellite 5 or the base station 2 in response to a periodic request from the system 100 or autonomously at a predetermined period, and the mobile communication network 3 and Position information including the position (latitude / longitude) measured is transmitted to the system 100 via the network 120 (s102).

  On the other hand, the system 100 receives the location information of the portable terminal 1 from the network 120 via the communication unit 106 (s103). Further, the system 100 collates the information on the position P (Xn, Yn) of the portable terminal 1 indicated by the position information received in step s103 with the area information table 126, and to which area the position P belongs. Specify (s104). At this time, the system 100 refers to the area information table 126 and specifies the area A ((Xs, Ys), (Xe, Ye)) that satisfies Xs ≦ Xn <Xe and Ys ≦ Yn <Ye. .

  Subsequently, the system 100 collates information (eg, terminal identifier) unique to the mobile terminal included in the position information with the mobile terminal information table 125 to identify which terminal the mobile terminal 1 is, and the corresponding mobile terminal 1 Terminal identifier 31-1, terminal information 31-2, user information 31-3, monitoring setting information 31-4, and portable terminal information update date 31-5 are acquired (s105). Here, the system 100 updates the latest position in the acquired terminal information 31-2 to the P (Xn, Yn) and the mobile terminal information update date 31-5 to the current time (s106).

  Further, the system 100 refers to whether the monitoring setting flag of the monitoring setting information 31-4 acquired in step s105 is “ON” or “OFF” for the belonging area of the position P specified in step s104. (S107). Whether the monitoring setting flag can be changed in a timely manner by the portable terminal holder operating the portable terminal 1 even after the initial setting, and is the system 100 monitored for abnormality / normality determination for the subsequent position information? Is a flag for determining When it is known in advance that a trial period in which only the location information is stored without performing the monitoring is provided, or when a trip or the like is not normally performed, the monitoring setting flag is set to “OFF” and the monitoring is performed. Can be operated such as

  When the monitoring setting flag is the default “ON” and the monitoring is performed (s107: YES), the storage unit 101 stores information on the movable range related to the monitoring target (for example, the system 100 has The position information has been received in the past to determine the movable range, or the movable range has been determined by the user's initial setting), and the system 100 advances the process to s108. On the other hand, when the monitoring setting flag is “OFF” and the monitoring is not performed (s107: NO), the system 100 advances the process to step s121.

  When the monitoring is performed, the system 100 searches the location information history table 127 for the location information history of the portable terminal 1 using the terminal identifier 31-1 obtained in step s105 as a key (s108). The history of the position information to be searched here is registered in the process of any one of steps s118, s119, s122, and s123 described later when the past position information is received.

  The system 100 extracts corresponding records for each same area from the history group that is the search result in the step s108, and adds the information related to the area specified in the step s104 (corresponding to the latest position information) and the total number thereof. And the location frequency at which the past location of the mobile terminal 1 belongs to each area is calculated (s109). Of course, when there is no location information accumulated for all areas because location monitoring has just started, or when frequency calculation is performed for an area where no location information has been accumulated in the past, the step The history group cannot be searched by the search of s108, and the number of information (corresponding to the latest position information) regarding the area specified in step s104 is the total number. The calculated location frequency is stored in the record of the corresponding area in the area frequency table 128 in order to reduce the processing load of the next calculation.

  FIG. 8 is a diagram showing a count example of the location frequency taking child commuting as an example. The circle 80 in the figure is the location indicated by the location information periodically received from the mobile terminal 1 possessed by the child during the commuting time, and the system 100 sequentially transitions in the direction of the arrow. Show. Also, the numbers given in the areas in the figure indicate the location frequency values calculated for the areas where the numbers are written. In the example shown in the figure, the system 100 has received position information eight times during a predetermined time period, of which position information belonging to the area 81 of A ((X2, Y1) (X3, Y2) has been received twice. Therefore, the location frequency relating to the area 81 is counted as “2.” Similarly, there are six areas 82 to 87 where the location frequency is “1”, and the location frequencies of other areas are “ 0 ".

  Next, the system 100 determines the movable range of the mobile terminal 1 based on the location frequency of each area calculated in step s109, and stores the information in the storage unit 101 (s110). For this determination, the location frequency of each area calculated in step s109 and the threshold value included in the monitoring setting information 31-4 are used. As one method, there is a method of determining an area group whose location frequency is equal to or higher than a threshold as a movable range. For example, the threshold is clearly set to “1” or the like, and the area that has moved in the past is adopted as a movable range. For example, as a result of the search in step s108, there is no record accumulated for a certain area, and only one piece of information related to the area specified in step s104 (corresponding to the latest position information) is a processing target. The location frequency of the area is “1”, which was not a movable range until then. However, by receiving the latest movement information, the area reaches the threshold “1” and becomes a movable range. Alternatively, as another method, there is a method in which the probability that a monitoring target is located in an area during a predetermined period is regarded as a frequency, and this is compared with a threshold, and an area group in which the probability is equal to or greater than the threshold is set as a movable range. For example, if the location information received for the monitoring target in the past month is 30 and 3 of them are related to a certain area, the probability that the monitoring target is located in the corresponding area is 10%. Become. When the threshold value is 5%, the area has been monitored with a probability of 5% or more, which is the threshold value, that is, it can be determined as a movable range. It is preferable that the determination process of the movable range is performed every time the system 100 receives the position information from the portable terminal 1 and reaches a certain number.

  FIG. 9 assumes a child who lives in area 82 of A ((X1, Y1) (X2, Y2)) and goes to school in area 87 of A ((X2, Y4) (X3, Y5)). It is a figure which shows the example of a movable range in the case. Further, it is assumed that there is a friend's house in the area 88 of A ((X4, Y3) (X5, Y4)). The numbers in the figure indicate the location frequency values calculated for the area where the numbers are written. This is an example where a child is often at home, at school, or at a friend's house. Here, when the location frequency threshold is “30”, the white area 90 (area group included in the area surrounded by the broken line) in the figure becomes the movable range. The area 89 of A ((X4, Y2) (X5, Y3)) sandwiched between the movable range areas is likely to be the movable range if it is manually set. In some cases, the system 100 can automatically determine an area in which no history of position information is obtained at all and should not move in the first place (that is, outside the movable range). The movable range is determined by the processing so far.

  Next, the system 100 determines whether the area specified in step s104 falls within the movable range, and determines whether the monitoring result is abnormal or normal with respect to the monitoring target (s111). This monitoring result is held in the storage unit 101. If it is determined as “abnormal” as a result of step s111 (s111: YES), the system 100 proceeds to step s112, whereas if it is determined to be “normal” (s111: NO), the process proceeds to step s121. .

  When it is determined as “abnormal” in step s111, the system 100 uses the same terminal identifier 33-1 and the same area identifier 33 as those obtained in step s105 for the position information in the position information history table 127. -3 and a record whose non-monitoring flag 33-5 is "ON" is searched (s112).

  When the corresponding record can be searched by this search (s112: YES), the system 100 sets “location information of the corresponding area obtained at a past time within a predetermined time from the current time” for the area specified in step s104. Although the monitoring result is “abnormal”, it is confirmed that there is no problem due to the operation of the mobile terminal 1 of the mobile terminal holder, and is recognized as an area in which the non-monitoring flag 33-5 is set to “ON”. To do. In that case, the system 100 can make the area unmovable unconditionally, thereby suppressing the transmission of frequent confirmation messages (described later in step s120) and improving usability. The predetermined time is a certain time or a date. As described above, when the corresponding record can be searched in step s112 (s112: YES), the system 100 advances the process to step s121. When the system 100 cannot search (s112: NO), the process proceeds to s113.

  When the corresponding record cannot be retrieved in step s112, the system 100 transmits a request for displaying a confirmation message on the portable terminal 1 (notification of confirmation request regarding presence / absence of abnormality) (s113). This request is transmitted from the system 100 to the mobile terminal 1 by following the same route as the position information. The content of the confirmation message is a message for confirming “whether the current position is determined to be abnormal but a problem has actually occurred”. This confirmation message is displayed on the display unit of the portable terminal 1 and prompts the portable terminal holder to input whether there is a problem in the input unit. In response to the confirmation message, when the portable terminal holder makes an input, or when waiting for input exceeds a predetermined time and times out, the portable terminal 1 sends a response to the confirmation message to the system 100 ( s114).

  On the other hand, the system 100 receives the response from the portable terminal 1 through the same route and means as the position information (s115). The system 100 also includes information on the presence / absence of a problem indicated by the response from the mobile terminal 1 (for example, the presence / absence of text “problem” or “no problem”, setting of a check or flag in a predetermined column, etc. ) And if it is confirmed that there is no problem (s116: NO), the process proceeds to step s117. On the other hand, if there is a problem or the input times out (s116: YES), the process proceeds to step s120. .

  When it is confirmed in step s116 that there is no problem, the system 100 changes the monitoring result held in the storage unit 101 in step s111 to “normal” for the area, and the mobile terminal information In the table 125, reference is made to whether the frequency target setting flag of the monitoring setting information 31-4 related to the mobile terminal 1 is “ON” or “OFF” (s117). The frequency target setting flag is a flag that can be set and changed as needed by the mobile terminal holder operating the mobile terminal 1 even after the initial setting, and whether the subsequent location information history is to be calculated as the location frequency of the area. It is. If this flag is set by specifying an area, it becomes a criterion for determining whether or not the location frequency is to be calculated when location information is received for the corresponding area. 1 is a reference for determining whether the location frequency is to be calculated when position information is received for a certain period. For example, for an area that is a destination for travel and that is not normally visited, even if the system 100 receives the position information, the mobile phone should not be included in the calculation of the location frequency that is the source of the movable range. The terminal holder can set the frequency target setting flag to “OFF”. Alternatively, if a travel period is determined, the mobile terminal holder must set an expiration date so that all location information received by the system 100 during that period is not subject to calculation of the location frequency that is the basis of the movable range. Setting such that the frequency target setting flag is set to “OFF” can be performed.

  When the frequency target setting flag is “OFF” in step s117 (s117: NO), the system 100 sets the frequency target flag 33-4 to “OFF” in the position information record and calculates the location frequency. The non-monitoring flag 33-5 is set to “ON” and the area of the area identifier 33-3 is set to be movable within a predetermined time regardless of the location frequency. Information is registered in the position information history table 127 (s118).

  On the other hand, when the frequency target setting flag is “ON” in the step 117 (s117: YES), the system 100 sets the frequency target flag 33-4 to “ON” in the position information record, and determines the location frequency. The non-monitoring flag 33-5 is set to “ON” and the area of the area identifier 33-3 is set to be movable within a predetermined time regardless of the location frequency. Information is registered in the position information history table 127 (s119).

  It should be noted that the system 100 performs periodical processing for returning the non-monitoring flag 33-5 to “OFF” for the record in which the non-monitoring flag 33-5 is “ON” in the position information history table 127 after a predetermined time has passed. I do.

  FIG. 10 is a diagram illustrating an example in which the movable range is changed by the operation of the mobile terminal 1 by the mobile terminal holder. In the same case as FIG. 9, it is a figure which shows the case where it deviates from the movable range at the time of attending school, and stops at the area Z of A ((X4, Y5) (X5, Y6)). The number in the figure indicates the value of the location frequency of the area where the number is written, and the threshold value of the location frequency is “30”. Since the area Z of A ((X4, Y5) (X5, Y6)) is out of the movable range from the location frequency, when the mobile terminal 1 moves to the corresponding area, it is determined as “abnormal” by the monitoring, and the mobile terminal The confirmation message is displayed at 1. Here, when the portable terminal holder inputs that there is no problem in the portable terminal 1, the fact is returned from the portable terminal 1 to the system 100. In this case, the system 100 registers the position information record in the position information history table 127 with the non-monitoring flag 33-5 set to “ON”. As a result, the area Z of A ((X4, Y5) (X5, Y6)) is unconditionally movable within a predetermined time, and the unmovable movable area 90 is changed from the state of FIG. It is changed to the state of for a certain time.

  On the other hand, if there is a problem in step s116 or if the input times out, the system 100 displays, for example, information on the occurrence of an abnormality in the position monitoring of the mobile terminal 1 on the output unit 105 or a predetermined value. An e-mail or a predetermined message is transmitted to the guardian's terminal together with the latest position of the portable terminal 1 (s120). An operator of the system 100, that is, an administrator of the monitoring center, etc. searches the mobile terminal information table 125 based on the display information on the output unit 105, and addresses, names, and contacts regarding the user of the mobile terminal 1. The information of the latest position can be acquired first, and the guardian to be monitored can be notified, or the latest position can be notified to the police and a search request can be made.

  Subsequently, the system 100 refers to whether the frequency target setting flag of the monitoring setting information 31-4 related to the mobile terminal 1 is “ON” or “OFF” in the mobile terminal information table 125 (s121). .

  When the frequency target setting flag is “OFF” as a result of step s121 (s121: NO), the system 100 sets the frequency target flag 33-4 to “OFF” in the position information record, and the location frequency The non-monitoring flag 33-5 is set to “OFF”, and the position information is registered in the position information history table 127 (s122).

  On the other hand, if the frequency target setting flag is “ON” as a result of step s121 (s121: YES), the system 100 sets the frequency target flag 33-4 to “ON” in the record of the position information. The location frequency is set to be calculated, the non-monitoring flag 33-5 is set to “OFF”, and the location information is registered in the location information history table 127 (s123).

  Although the best mode for carrying out the present invention has been specifically described above, the present invention is not limited to this, and various modifications can be made without departing from the scope of the invention.

  According to the present embodiment, the movement pattern used for normality / abnormality determination in the position monitoring accurately reflects the behavior pattern based on the actual movement history in the terminal, that is, the monitoring target, physical constraints in the real space, and the like. Can be automatically set. For example, even if the main range of action initially assumed is a monitoring target such as a round-trip route between your home and the nearest station, there are situations where the number of stops will increase after a while or another adjacent route will be used. It can be normal. However, it is very difficult for the person to be monitored to predict all such behavior. In other words, it is difficult to accurately set the initial movable range, and it is difficult to respond to subsequent changes with certainty.

  However, even in such a situation, the position monitoring system of the present embodiment can flexibly and surely set the movable range accurately. In this way, appropriate settings for the movable range make it difficult for the user and the monitoring side to frequently raise alerts or start searching for people and things located in a safe place. Inefficient situations can be avoided. Eventually, the system side detects the monitoring object that has moved out of the movable range, ie, the position of normal movement, and this leads to reliably and efficiently identifying the occurrence of an abnormal situation. In addition, it is possible to increase the speed of contact with the guardian to be monitored and the search by the security agency.

  Therefore, it is possible to set the correctness of the moving range related to the position monitoring target efficiently and accurately.

  At least the following will be clarified by the description of the present specification. That is, in the position monitoring system, the calculation unit accumulates position information in a storage unit with respect to a predetermined area and sets the location frequency as a calculation target area, or an area corresponding to the latest position information is movable. It receives the designation from the terminal for the area to be judged whether or not it corresponds to the terminal, executes the process of storing it in the storage unit in association with the corresponding terminal, and collates the position information transmitted from the terminal with the area information table Then, the location area where the corresponding terminal is located is specified, and when the specified location area corresponds to the calculation target area and the determination target area stored in the storage unit for the corresponding terminal, information on the location area is obtained. Even if it is stored in the storage unit and the location area corresponds to the movable range stored in the storage unit for the corresponding terminal. There.

  Further, in the location monitoring system, the calculation unit collates the location information transmitted from the terminal with an area information table to identify a location area where the corresponding terminal is located, and the identified location area is related to the corresponding terminal. If the calculation target area stored in the storage unit corresponds to the calculation target area but does not correspond to the determination target area, information on the location area is stored in the storage unit, and the location area stored in the storage unit for the corresponding terminal It is good also as not determining whether it corresponds to a possible range.

  Further, in the position monitoring system, when the calculation unit determines whether the location area does not correspond to the movable range as a result of determining whether the location area corresponds to the movable range, and determines that an abnormality has occurred in the monitoring target A notification of a confirmation request regarding the presence / absence of an abnormality may be transmitted to the corresponding terminal, and an alert may be output to a predetermined address when a response indicating no abnormality is not obtained from the corresponding terminal.

  In the location monitoring system, the calculation unit transmits a confirmation request notification regarding the presence or absence of abnormality to the corresponding terminal, and when a response indicating no abnormality is obtained from the corresponding terminal, Information is stored in the storage unit as a temporary movable range that is valid for a certain period of time, the latest location information transmitted from the terminal is checked against the area information table, and the location area where the terminal is located When the location area corresponds to the temporary movable range stored in the storage unit for the corresponding terminal, it may be determined that there is no abnormality in the monitoring target.

1 Mobile terminal (terminal)
2 base station 3 mobile communication network 5 GPS satellite 100 position monitoring system 101 storage unit 102 program 103 memory 104 operation unit 105 output unit 106 communication unit 120 network 125 portable terminal information table 126 area information table 127 position information history table 128 area frequency table

Claims (7)

A computer system for obtaining position information from a terminal attached to a monitoring target and monitoring whether the monitoring target is located in a movable range,
A communication unit that communicates with the terminal;
A storage unit storing an area information table storing information of each area that divides a predetermined monitoring area;
Processing for receiving location information transmitted from each terminal, collating the location information with the area information table to identify the location area of the corresponding terminal, and storing it in the storage unit;
Read the information of each location area of the predetermined terminal stored in the storage unit, calculate the location frequency of the corresponding terminal in each area, compare the location frequency with a predetermined standard, and select an area whose location frequency is equal to or higher than the predetermined standard. A process of identifying and storing in the storage unit as a movable range in the corresponding terminal;
The latest location information transmitted from the terminal is collated with the area information table, the location area where the corresponding terminal is located is specified, and the location area is in the movable range stored in the storage unit for the corresponding terminal. A calculation unit that determines whether it is applicable and, when the location area does not correspond to the movable range, determines that an abnormality has occurred in the monitoring target and executes a predetermined procedure;
A position monitoring system comprising: The computing unit is
Regarding the predetermined area, whether the location information is accumulated in the storage unit and used as the calculation target area of the location frequency, and whether the area corresponding to the latest position information corresponds to the movable range or not Accept the designation from the terminal, execute the process of storing in the storage unit in association with the corresponding terminal,
The location information transmitted from the terminal is collated with the area information table, the location area where the corresponding terminal is located is specified, and the specified location area stored in the storage unit for the corresponding terminal and the determination If the target area corresponds to the target area, the information of the location area is stored in the storage unit, and it is determined whether the location area corresponds to the movable range stored in the storage unit for the corresponding terminal.
The position monitoring system according to claim 1, wherein the position monitoring system is one. The computing unit is
The location information transmitted from the terminal is checked against the area information table, the location area where the corresponding terminal is located is specified, and the specified location area corresponds to the calculation target area stored in the storage unit for the corresponding terminal. On the other hand, if it does not correspond to the determination target area, the information of the location area is stored in the storage unit, and it is not determined whether the location area corresponds to the movable range stored in the storage unit for the terminal.
The position monitoring system according to claim 2. The computing unit is
As a result of determining whether or not the location area falls within the movable range, if it is determined that the location area does not fall within the movable range and an abnormality has occurred in the monitoring target, a confirmation request regarding the presence or absence of abnormality is sent to the corresponding terminal. The notification is transmitted, and when a response indicating no abnormality is not obtained from the corresponding terminal, an alert is output to a predetermined address. Position monitoring system. The computing unit is
When a notification of a confirmation request regarding the presence / absence of an abnormality is sent to the corresponding terminal and a response indicating no abnormality is obtained from the corresponding terminal, the location area can be temporarily moved for a certain period of time with respect to the corresponding terminal. Store information in the storage unit as a range,
The latest location information transmitted from the terminal is collated with the area information table to identify the location area where the terminal is located, and the location area is stored in the storage unit for the terminal. The position monitoring system according to claim 4, wherein when it falls within the possible range, it is determined that there is no abnormality in the monitoring target. The position information is obtained from the terminal attached to the monitoring target, and the communication unit that communicates with the terminal and information on each area that divides a predetermined monitoring area are stored in order to monitor whether the monitoring target is located within the movable range. A computer having a storage unit storing the area information table
Processing for receiving location information transmitted from each terminal, collating the location information with the area information table to identify the location area of the corresponding terminal, and storing it in the storage unit;
Read the information of each location area of the predetermined terminal stored in the storage unit, calculate the location frequency of the corresponding terminal in each area, compare the location frequency with a predetermined standard, and select an area whose location frequency is equal to or higher than the predetermined standard. A process of identifying and storing in the storage unit as a movable range in the corresponding terminal;
The latest location information transmitted from the terminal is collated with the area information table, the location area where the corresponding terminal is located is specified, and the location area is in the movable range stored in the storage unit for the corresponding terminal. A process of determining whether or not the above-mentioned location area does not correspond to the movable range and determining that an abnormality has occurred in the monitoring target and performing a predetermined procedure;
The position monitoring method characterized by performing. The position information is obtained from the terminal attached to the monitoring target, and the communication unit that communicates with the terminal and information on each area that divides a predetermined monitoring area are stored in order to monitor whether the monitoring target is located within the movable range. A computer having a storage unit storing the area information table
Processing for receiving location information transmitted from each terminal, collating the location information with the area information table to identify the location area of the corresponding terminal, and storing it in the storage unit;
Read the information of each location area of the predetermined terminal stored in the storage unit, calculate the location frequency of the corresponding terminal in each area, compare the location frequency with a predetermined standard, and select an area whose location frequency is equal to or higher than the predetermined standard. A process of identifying and storing in the storage unit as a movable range in the corresponding terminal;
The latest location information transmitted from the terminal is collated with the area information table, the location area where the corresponding terminal is located is specified, and the location area is in the movable range stored in the storage unit for the corresponding terminal. A process of determining whether or not the above-mentioned location area does not correspond to the movable range and determining that an abnormality has occurred in the monitoring target and performing a predetermined procedure;
A position monitoring program characterized in that is executed.