JP2012146098A - Event management apparatus, method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an operator of a system which collects information indicating events being present over a wide area to easily grasp relevancy of these events.SOLUTION: An event management apparatus includes information collection terminals 111 and 112, an information storage device 121 which stores information, and an information display device 131 which displays stored information. Each of the information collection terminals 111 and 112 has a function to communicate with each other, a function to measure a position and a function to create collection information containing contents of communication and records a history of communications, a history of positional information and collected information in the information storage device 121. In the information storage device 121, relevancy between areas is determined from the communication history and the positional information history. When retrieving collected information in the information storage device 121 while designating any area, the information display device 131 utilizes the relevancy between areas to specify an area having strong relevancy with the designated area and extracts the collected information.

Description

  The present invention relates to a technique for collecting information collected from a portable terminal so as to have a certain meaning and displaying the information in a predetermined display mode.

  When an organizational response is required, such as when a large-scale disaster occurs, it is necessary to collect information from a wide area and respond based on the collected information. There are various methods for collecting information from a wide area and displaying the collected information in an information processing system used by a disaster site supervisor who performs such a response. For example, a worker who performs a rescue operation at a disaster site has a portable terminal, inputs information indicating the situation of the site expressed by a call with another worker, etc. into the terminal, and the system Collect that information from the terminal. In the system, there is a method of narrowing down or classifying information according to keywords (element information) of each collected information, or rearranging and displaying the information in a list form. Such a method is a useful method in which individual information collected from the terminal is aggregated and a system operator (disaster site supervisor) understands the meaning as a set of information. Also, by using date and time as element information, organizing individual information in chronological order and expressing it in an intuitively understandable format makes it possible for the system operator to accurately understand the situation of the case to be handled. , Help to respond.

  On the other hand, conventionally, it is portable as a terminal that collects information and uses a terminal (PHS terminal) having a wireless communication function, a positioning function, and an information input function, and a data management device (information collecting / processing). A system for accumulating collected information in a terminal has been proposed (see Patent Document 1). In this system, the location information measured by the location positioning function of the terminal and the input information input by the operator of the terminal using the information input function of the terminal are stored in the data management device via the wireless communication function. Can do.

Japanese Patent Laid-Open No. 10-40484

  Generally, in the information list display method, when the information collection range is wide, information on a plurality of events that proceed in parallel is collected. For this reason, element information for classifying and organizing the collected information is required. When creating the element information included in the collected information, it is recommended that the selection method be used so as not to cause a difference in expression by the operator of the terminal (disaster site worker). However, this selection method complicates input in the sense of forcing the operator of the terminal to eliminate differences in expression, element information that can be selected is limited, and element information that accurately represents the situation at the site exists The problem remains in the point that may not be.

  The system proposed by Patent Document 1 makes it possible to share information at individual points collected from terminals throughout the system and easily grasp the current situation in each region. Cannot be expressed. During a large-scale disaster, the effects of events occurring at a certain point can be widespread. At that time, in a system such as Patent Document 1 that individually expresses information collected at each point, the cause and effect of an event occurring at one point and an event occurring at another point related thereto. It is difficult to grasp the relationship. In other words, it may not be possible to find the relationship between causes and results between events.

  In addition, displaying causes and results in an easily distinguishable format makes it easy to predict the situation in the near future, and it is optimal for supervisors at disaster sites to minimize the spread of damage through systematic responses. Strongly support the command. Considering this point, the element information created by the above method is expressed only as objective information such as location, time, phenomenon, etc., and the situation between operators of the terminal that collected the information, that is, each work at the disaster site It cannot be said that it reflects the relationship between events that a person responds to, and is insufficient as the support.

  In view of these problems, it is an object of the present invention to enable an operator of a system that collects information indicating events existing over a wide area to easily grasp the relationship between those events.

In order to solve the above-described problems, the present invention includes an information collection terminal used by a worker on site, an information storage device that stores information, and an information display device that displays the stored information. The on-site supervisor uses the information storage device and the information display device.
The information collection terminal has a function of performing communication with each other, a function of measuring a position, and a function of creating collection information including the contents of communication. A communication history, a history of position information, and a collection information are collected. Record in the information storage device.
In the information storage device, the relationship between regions is obtained from the communication history and the history of position information. When the information display device designates a region and searches the collection information of the information storage device, the information display device uses the relationship between the regions to identify a region having a strong relationship with the designated region and extracts the collected information.
Details will be described later.

  ADVANTAGE OF THE INVENTION According to this invention, the operator of the system which collects the information which shows the event which exists over a wide area can enable it to grasp | ascertain the relationship between those events easily.

It is a figure which shows the structure of the time series information display system of this embodiment. 2 is a diagram illustrating a hardware configuration of information collection terminals 111 and 112. FIG. 6 is a diagram showing an example data configuration of an information collection terminal list 4112. FIG. 2 is a diagram illustrating a hardware configuration of an information storage device 121. FIG. It is a figure which shows the example of a data structure of area definition DB (4121). It is a display example when boundary information is expressed on a map. It is a figure which shows the example of a data structure of collection information DB (4122). It is a figure showing an example of data composition of position information DB (4123). 3 is a diagram illustrating a hardware configuration of an information display device 131. FIG. It is a figure which shows a positional information registration flow. 6 is a diagram illustrating a data example of position information data 61141. FIG. It is a figure which shows a matrix update flow. It is a figure which shows a matrix update flow. 6 is a diagram showing a data example of communication information data 61121. FIG. It is a figure which shows the example of data of the relevance matrix update data 61221. 6 is a diagram illustrating a structure of a history matrix 5121. FIG. 5 is a diagram showing the structure of a relevance matrix 5122. FIG. It is a figure which shows a collection information registration flow. It is a figure which shows the example of data of the collection information data 61111. It is a figure which shows the example of data of the collection information storage data 61111. 10 is a screen example of a search condition input screen 71111. It is a screen example of a search result screen. It is another example of a search result screen. It is another example of a search result screen.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings.

≪Configuration≫
FIG. 1 is a diagram illustrating a configuration of a time-series information display system according to the present embodiment. In FIG. 1, 111 and 112 are information collection terminals, 121 is an information storage device, 131 is an information display device, and 141 is a communication line connecting the devices. In this embodiment, only two information collection terminals and one information display device are shown, but in reality, more information collection terminals and information display devices are connected to the information storage device 121 and the communication line 141. Needless to say.

  This time-series information display system includes information collection terminals 111 and 112, an information storage device 121, and an information display device 131. The information transmitted by the information collection terminals 111 and 112 is aggregated in the information storage device 121 and aggregated. The information is displayed on the information display device 131 in time series. Information displayed in time series in this way may be referred to as “time series information”.

  The information collection terminals 111 and 112 (mobile terminals) create and transmit collection information to be stored in the information storage device 121, or communicate (communication) with the location information of its own information collection terminal and other information collection terminals Or send information about. For example, when a disaster or the like occurs and an organizational response is required, the information collection terminals 111 and 112 are handed to workers who perform rescue activities at the disaster site. Each worker communicates about the activity with other workers using the information collection terminals 111 and 112 when performing the activity on the site. Details of the collected information will be described later.

The information storage device 121 (a part of the event management device) stores the collected information and position information received from the information collection terminals 111 and 112, and provides the collected information based on the request from the information display device 131.
The information display device 131 (a part of the event management device) displays the collected information stored in the information storage device 121 in a predetermined display mode. For example, when a disaster occurs and an organizational response is required, the supervisor at the disaster site uses the information storage device 121 and the information display device 131 to collect time-series information that is collected in time series. Display and grasp the situation of disaster.

  FIG. 2 is a diagram illustrating a hardware configuration of the information collection terminals 111 and 112. As illustrated in FIG. The information collection terminals 111 and 112 include a storage unit 2111, a display unit 2112, an input unit 2113, a control unit 2114, a network interface unit 2115, a voice input unit 2116, and a voice output unit 2117. It is equipped with physical features that the operators of the terminals 111 and 112 can carry.

The storage unit 2111 records (stores) functional programs (sometimes simply referred to as “programs”) realized by the information collection terminals 111 and 112.
The display unit 2112 displays the operation screen and the operation result screen of the function program recorded in the storage unit 2111.
The input unit 2113 inputs information for operating the function program recorded in the storage unit 2111.
The control unit 2114 controls each unit of the information collection terminals 111 and 112.
The network interface unit 2115 transmits / receives information to / from the information storage device 121 and the information display device 131 via the communication line 141.
The voice input unit 2116 performs voice input for realizing communication using voice between the information collection terminals 111 and 112.
The voice output unit 2117 performs voice output for realizing communication using voice between the information collection terminals 111 and 112.

  The storage unit 2111 is provided with an information input function 3111, a communication management function 3112, a communication function 3113, a position measurement function 3114, a time acquisition function 3115, owner information 4111, and an information collection terminal list 4112.

  The information input function 3111 is a function that provides a screen for an operator of the information collection terminals 111 and 112 to input information, and transmits information to the information storage device 121 via the network interface unit 2115.

  The communication management function 3112 is a function for managing the communication function 3113. When the information collection terminal 111 is a communication source and the information collection terminal 112 is a communication reception destination, the operator of the information collection terminal 111 can use the communication function 3113 via the communication management function 3112. It communicates with 112 communication functions 3113. At this time, the communication management function 3112 of the information collection terminal 111 manages the start and end of the communication function 3113, and the communication source (sender) that communicated and the communication destination (recipient) and the time when the communication was performed (Start time, end time) is transmitted to the information storage device 121 via the network interface unit 2115.

  The communication function 3113 is a function for performing communication between operators of the information collection terminals 111 and 112. The communication method realized by the communication function 3113 targets communication in general using voice, characters, still images, moving images, and the like as a medium, and realizes communication via the network interface unit 2115. During voice communication, communication is realized through the voice input unit 2116 and the voice output unit 2117. Although the present embodiment describes one-to-one communication, the present invention can be applied to one-to-many communication.

  The position positioning function 3114 is a function for transmitting the position coordinates (position information) of the information collection terminals 111 and 112 measured using GPS (Global Positioning System) and the time when the measurement is performed to the information storage device 121.

  The time acquisition function 3115 is a function for acquiring time information of the internal clock possessed by the information collection terminals 111 and 112. The time that the positioning function 3114 transmits to the information storage device 121 is created from the time information.

  The owner information 4111 is information of the own terminal that the information collection terminals 111 and 112 have. The owner information 4111 has at least own terminal identification information 41111 for identifying the own terminal, and is recorded in advance in the information collection terminals 111 and 112, respectively. The own terminal identification information 41111 is information for identifying the information collection terminals 111 and 112, and is uniquely assigned to each information collection terminal 111 and 112.

  FIG. 3 is a diagram illustrating a data configuration example of the information collection terminal list 4112. The information collection terminal list 4112 is information on all information collection terminals provided in the time-series information display system. The information collection terminal list 4112 has at least terminal identification information 41121 and a communication address 41122, and is recorded in the information collection terminals 111 and 112 in advance.

The terminal identification information 41121 is the own terminal identification information 41111 stored in all the information collection terminals provided in the time-series information display system.
The communication address 41122 is identification information for performing communication using the terminal identification information 41121 and the communication function 3113 (eg, telephone number, IP (Internet Protocol) address, mail address).

  FIG. 4 is a diagram illustrating a hardware configuration of the information storage device 121. The information storage device 121 mainly includes a storage unit 2121, a control unit 2122, and a network interface unit 2123, and is used by a supervisor at the disaster site (an operator of the information storage device 121).

The storage unit 2121 records a function program (including an event management program) realized by the information storage device 121 and data used for the function program. The information includes matrix information.
The control unit 2122 controls each unit of the information storage device 121.
The network interface unit 2123 transmits and receives data to and from the information collection terminals 111 and 112 and the information display device 131 via the communication line 141.

  The storage unit 2121 includes a collection information processing function 3121, a relevance matrix processing function 3122, a collection information extraction function 3123, and a region definition DB (Data Base) used for the function program as function programs realized by the information storage device 121. (4121) (see FIG. 5), collection information DB (4122) (see FIG. 7), position information DB (4123) (see FIG. 8), history matrix 5121 (see FIG. 15), relevance matrix 5122 (FIG. 16) Reference) is recorded.

  The collection information processing function 3121 receives data transmitted by the information input function 3111 of the information collection terminals 111 and 112, receives the data by referring to the region definition DB (4121), the location information DB (4123), and the relationship matrix 5122 This is a function of recording the collected data in the collection information DB (4122) after editing.

  The relevance matrix processing function 3122 is a function for receiving data transmitted by the communication management function 3112 of the information collection terminals 111 and 112 and updating the history matrix 5121 and the relevance matrix 5122 using the received data.

  The collection information extraction function 3123 receives the collection information request transmitted by the search condition input function 3132 (see FIG. 9) of the information display device 131, and collects information DB (in accordance with the search condition included in the received collection information request ( 4122) is transmitted to the information display device 131.

  FIG. 5 is a diagram showing a data configuration example of the region definition DB (4121). The region definition DB (4121) is characterized by having a region name 41211 and boundary information 41212 (map information).

The area name 41211 is the name of the area targeted by the time-series information display system.
The boundary information 41212 is a set of map coordinates for specifying an area on the map corresponding to the area name 41211. For example, when the boundary information 41212 whose area name 41211 is “area 1” is taken as an example, it is represented on the map as shown in FIG. At this time, the portion corresponding to the value stored in the boundary information 41212 is an area painted in black. Further, the position coordinates surrounded by the boundary information 41212, for example, (2, 2) and (2, 3) are determined to be the region of “region 1” (white). The data recorded in the region definition DB (4121) is data that should be created and recorded in advance, and may be arbitrarily created data other than generally available municipal boundaries.

  FIG. 7 is a diagram illustrating a data configuration example of the collection information DB (4122). The data recorded in the collection information DB (4122) is data recorded by processing the data transmitted to the information storage device 121 by the information input function 3111 of the information collection terminals 111 and 112 with the collection information processing function 3121. is there. The collection information DB (4122) has terminal identification information 41221, transmission source location information 41222, transmission source area information 41223, collection information 41224, time 41225, related area 1 (41226), and related area 2 (41227). And

The terminal identification information 41221 is information for identifying the information collection terminals 111 and 112 that are transmission sources of data to be recorded in the collection information DB (4122).
The transmission source position information 41222 is the position coordinates of the information collection terminals 111 and 112 identified by the terminal identification information 41231 (see FIG. 8) when data is transmitted.
The sender area information 41223 is an area name 41211 (see FIG. 5) divided into boundary information 41212 (see FIG. 5) including the position coordinates indicated by the sender position information 41222.

The collection information 41224 is information input from the information collection terminals 111 and 112 identified by the terminal identification information 41231 (see FIG. 8).
Time 41225 is the time when the information input in the collection information 41224 is created.

  The related area 1 (41226) and the related area 2 (41227) are the areas with the name 41211 that are strongly related to the sender area information 41223 at the time indicated by the time 41225, respectively. (In order) (from the left in the figure). In this embodiment, as the data configuration example of the collection information DB (4122), the two related areas to be handled (related area 1 (41226) and related area 2 (41227)) are used, but the number can be arbitrarily changed. May be.

The strength of the relationship between regions will be described later (see FIG. 16).
For convenience of explanation, a record in the collection information DB (4122) may be referred to as “collection information”.

  FIG. 8 is a diagram illustrating a data configuration example of the position information DB (4123). Data recorded in the position information DB (4123) is data received by the information storage device 121 from the information collection terminals 111 and 112. The position information DB (4123) has terminal identification information 41231, time 41232, and position information 41233.

The terminal identification information 41231 is information for identifying the information collection terminals 111 and 112 that are data transmission sources.
Time 41232 is the time when data is transmitted from the information collection terminals 111 and 112.
The position information 41233 is the position coordinates of the information collection terminals 111 and 112 identified by the terminal identification information 41231 at the time indicated by the time 41232.

  FIG. 9 is a diagram illustrating a hardware configuration of the information display device 131. The information display device 131 includes a storage unit 2131, a display unit 2132, an input unit 2133, a control unit 2134, and a network interface unit 2135, and is used by a supervisor at the disaster site (operator of the information display device 131).

The storage unit 2131 records a function program (including an event management program) realized by the information display device 131.
The display unit 2132 displays an operation screen of the function program recorded in the storage unit 2131 and an operation result screen (search result screen).
The input unit 2133 inputs information for operating the function program recorded in the storage unit 2131.
The control unit 2134 controls each unit of the information collection device 131.
The network interface unit 2135 transmits and receives information to and from the information storage device 121 via the communication line 141.

The storage unit 2131 records a collected information display function 3131 and a search condition input function 3132 as function programs realized by the information display device 131.
The collected information display function 3131 is a function that receives data transmitted by the collected information extraction function 3123 of the information storage device 121 and provides a display screen to the operator of the information display device 131.
The search condition input function 3132 provides an operation screen for requesting the collection information to the collection information extraction function 3123 of the information storage device 121, and includes a search condition for executing the collection information search by the collection information extraction function 3123 This is a function for transmitting a collection information request to the information storage device 121.

<< Process >>
Next, processing performed in the time-series information display system to which the present invention is applied will be described. When the processing is performed, each control unit (2114, 2122, 2134) is stored in each storage unit (2111, 2121, 2131) in each of the information collection terminals 111, 112, the information storage device 121, and the information display device 131. By reading the existing program, cooperation between software and hardware is realized.
There are four flows in the processing performed by the time-series information management system.

  The first flow is a position information registration flow in which data transmitted by the position positioning function 3114 of the information collection terminals 111 and 112 is recorded in the position information DB (4123) (see FIG. 8) of the information storage device 121. This position information registration flow starts when the position positioning function 3114 of the information collection terminals 111 and 112 is activated. The positioning function 3114 is activated not automatically by the operator's operation, but automatically. For example, it may be activated at a regular timing, or may be activated at the timing when another function is activated.

  FIG. 10 is a diagram showing a position information registration flow. In FIG. 10, the processing in the information collection terminal 111 is taken as an example. Therefore, the subject of this processing is mainly the control unit 2114 of the information collection terminal 111.

First, when the position measurement function 3114 is activated and this process is started, the position coordinates of the information collection terminal 111 are acquired using GPS (Global Positioning System) (S31141).
Next, the time acquisition function 3115 acquires time information from the internal clock of the information collection terminal 111 (S31142).
Next, own terminal identification information 41111 (see FIG. 2) is acquired from the owner information 4111 (S31143).
Next, position information data 61141 (see FIG. 11) is created from the acquired position coordinates, time information, and own terminal identification information 41111 (S31144).
Next, the position information data 61141 is transmitted to the information storage device 121 (S31145).

Here, the position information data 61141 will be described in detail.
FIG. 11 is a diagram illustrating a data example of the position information data 61141. As illustrated in FIG. The location information data 61141 is characterized by having terminal identification information 611411, time 611412, and location information 611413.
The terminal identification information 611411 is the own terminal identification information 41111 acquired in S31143.
Time 611412 is the time information acquired in S31142.
The position information 611413 is the position coordinates acquired in S31141.

Returning to FIG. 10, the description will be continued. After S31145, the control unit 2122 of the information storage device 121 records the position information data 61141 received from the information collection terminal 111 in the position information DB (4123) (see FIG. 8) (S31146). At this time, the terminal identification information 611411 is recorded in the terminal identification information 41231 of the position information DB (4123), the time 611412 is recorded in the time 41232, and the position information 611413 is recorded in the position information 41233.
This is the end of the description of the position information registration flow.

  The second flow is a matrix update that updates the history matrix 5121 (see FIG. 15) and the relevance matrix 5122 (see FIG. 16) of the information storage device 121 when communication is performed between the information collection terminals 111 and 112. It is a flow. This matrix update flow is started when the communication management function 3112 of the information collection terminals 111 and 112 is activated.

  FIG. 12 (generic name of FIG. 12A and FIG. 12B) is a diagram showing a matrix update flow. In FIG. 12, in the information collection terminals 111 and 112 having the communication function 3113 for mutual communication, the communication request source (terminal) is the information collection terminal 111 and the reception destination (terminal) is the information collection terminal 112. The process in the case is taken as an example. Therefore, the subject of this processing is the control unit 2114 of the information collection terminals 111 and 112 and the control unit 2122 of the information storage device 121.

  First, the operator of the information collection terminal 111 activates the communication management function 3112 in order to communicate with the information collection terminal 112 (S31120). The activation method of the communication management function 3112 may be activated by operating a button assigned on the operation screen displayed on the display unit 2112 of the information collection terminal 111, or the activation of the communication management function 3112 is assigned. A method of directly operating the input unit 2113 may be used.

  Next, the terminal identification information 41121 is searched from the information collection terminal information list 4112 (see FIG. 3), and the result is displayed as a list on the display unit 2112 of the information collection terminal 111 (S31121). At this time, the value of the terminal identification information 41121 and the value of the own terminal identification information 41111 of the owner information 4111 are compared, and if they match, they are excluded from the list display target.

Next, from the list of displayed terminal identification information 41121, for example, the input unit 2113 is operated to select the terminal identification information 41121 of the information collection terminal 112 that is the communication destination (S31122).
Next, the terminal information terminal list 4112 is searched using the value of the selected terminal identification information 41121 as a key, and the communication address 41122 is acquired (S31123).

  Next, the communication function 3113 is activated using the value of the communication address 41122 as an argument (S31124). The communication function 3113 is a function that is implemented completely different from the present embodiment, and may be voice communication (for example, a call function in a mobile phone) or text information communication (for example, a mail function in a mobile phone). . However, it is necessary that the communication function 3113 can be activated by the communication management function 3112 and the end of the communication function 3113 can be detected. The communication function 3113 of the information collection terminal 112 is activated by the communication function 3113 of the information collection terminal 111. Thereafter, communication between the information collection terminals 111 and 112 is realized by the communication function 3113.

  Next, the communication management function 3112 detects the end of communication performed by the communication function 3113 (S31125). Note that the activation and termination processing of the communication function 3113 in S31124 and S31125 is executed by both the information collection terminals 111 and 112.

Next, the information collection terminal 111 as the transmission source acquires time information at the end of communication from the time acquisition function 3115 (S31126).
Next, communication information data 61121 (see FIG. 13) characterized by having at least source terminal identification information 611211, destination terminal identification information 611212, and time 611213 is created (S31127).

Here, the communication information data 61121 will be described in detail.
FIG. 13 is a diagram showing a data example of the communication information data 61121. As shown in FIG. The communication information data 61121 is characterized by having transmission source terminal identification information 611211, reception destination terminal identification information 611212, and time 611213.

In the transmission source terminal identification information 611211, the value of the own terminal identification information 41111 of the owner information 4111 is set.
In the destination terminal identification information 611212, the value of the terminal identification information 41121 selected in S31122 is set.
In the time 611213, the value of the time information acquired in S31126 is set.

  Returning to FIG. 12, the description will be continued. After S31127, the communication information data 61121 is transmitted to the information storage device 121 (S31128), and the processing in the information collection terminal 111 is terminated.

  On the other hand, the control unit 2122 of the information storage device 121 receives the communication information data 61121 and activates the relevance matrix processing function 3122. The terminal identification information 41231 and the time 41232 in the location information DB (4123) (see FIG. 8) are searched using the value of the transmission source terminal identification information 611211 and the value of the time 611213 as keys, and the transmission source terminal, that is, information collection The position information 41233 of the terminal 111 is acquired (S31221). At this time, the search at time 41232 using the time 611213 as a key is an approximate value search.

  Next, using the value of the acquired location information 41233 as a key, the boundary information 41212 of the region definition DB 4121 (see FIG. 5) is searched to acquire the region name 41211 as the region information of the transmission source terminal (S31222). The boundary information 41212 of the region definition DB 4121 is stored in a spatial data type, and it can be easily determined which boundary information 41212 includes the value of the position information 41233 by a search using a function provided by the database.

  Next, similarly to S31221, the terminal identification information 41231 of the location information DB (4123) and the time 41232 are searched using the value of the destination terminal identification information 611212, the value of the time 611213 as a key, That is, the position information 41233 of the information collection terminal 112 is acquired (S31223).

  Next, similarly to S31222, the boundary information 41212 in the region definition DB 4121 is searched using the value of the acquired position information 41233 as a key, and the region name 41211 as the region information of the receiving terminal is acquired (S31224).

  Next, at least transmission source terminal identification information 621211, transmission source location information 612212, transmission source region information 612213, reception destination terminal identification information 612214, reception destination location information 612215, reception destination region information 612216, and time 612217 Relevance matrix update data 61221 (see FIG. 14), which is characterized by having (S31225).

Here, the relevance matrix update data 61221 will be described in detail.
FIG. 14 is a diagram illustrating a data example of the relevance matrix update data 61221. The relevance matrix update data 61221 has transmission source terminal identification information 621211, transmission source location information 612212, transmission source region information 612213, reception destination terminal identification information 612214, reception destination location information 612215, reception destination region information 612216, and time 612217. It is characterized by that.

In the source terminal identification information 621211, the value of the source terminal identification information 611211 (see FIG. 13) is set.
In the transmission source location information 612212, the value of the location information 41233 (see FIG. 8) acquired in S31221 is set.
In the sender area information 612213, the value of the area name 41211 (see FIG. 5) acquired in S31222 is set.
In the destination terminal identification information 612214, the value of the destination terminal identification information 611212 is set.
In the reception destination position information 612215, the value of the position information 41233 acquired in S31223 is set.
In the destination area information 612216, the value of the area name 41211 acquired in S31224 is set.
At time 612217, the value at time 611213 is set.

In describing S31226 described later, the history matrix 5121 will be described in detail.
FIG. 15 is a diagram showing the structure of the history matrix 5121. The history matrix 5121 is a matrix having the regional information 51211 as a row and the communication history 51212 as a column.
The region information 51211 has a line composed of the values of all the region names 41211 included in the region definition DB (4121) (see FIG. 5).
The communication history 51212 has an arbitrary history number N, and has N columns from 1 to N. In other words, the order of communication (communication) from the first to the N-th (in order from the left in the figure) is determined.

  When the value specified by the row i and the column j of the history matrix 5121 is expressed by T121 (region i, j), T121 (region 2, 1) in the example of FIG. The information collecting terminal (the information collecting terminal 112 that is the receiving terminal according to the flow in FIG. 12) is the last information collecting terminal (according to the flow in FIG. The information collection terminal 111) is present in “Region 1”.

Now, a case where “region 1” is set in the transmission source region information 612213 of the relevance matrix update data 61221 (see FIG. 14) and “region 2” is set in the destination region information 612216 is shown in FIG. Continue to explain the process.
After S31225, the history matrix 5121 is updated in the line (source line) indicating the source area information 612213 (S31226). Specifically, in the “Region 1” row of the history matrix 5121, T121 (Region 1,1) to T121 (Region 1, N-1) are respectively changed from T121 (Region 1,2) to T121 (Region 1, N-1). ), “Region 2” indicating the receiving region is stored in T121 (Region 1, 1) in FIFO (First In First Out) format.

  Next, the history matrix 5121 is updated in the row indicating the receiving area information 612216 (reception preceding) (S31227). Specifically, in the “Region 2” row of the history matrix 5121, T121 (Region 2,1) to T121 (Region 2, N-1) are changed from T121 (Region 2,2) to T121 (Region 2, N). After the shift to, “Region 1” indicating the transmission source region is stored in FIFO format in T121 (Region 2, 1).

In describing S31228 described later, the relevance matrix 5122 will be described in detail.
FIG. 16 is a diagram showing the structure of the relationship matrix 5122. As shown in FIG. The relevance matrix 5122 is a matrix having the region information 5221 as rows and the region information 5122 as columns.
The area information 51221 and 51222 are both rows and columns composed of values of all area names 41211 included in the area definition DB (4121) (see FIG. 5).

When the value specified by the row i and the column j of the relevance matrix 5122 is expressed by T122 (i, j), T122 (region 2, region 3) indicates “70” in the example of FIG. Expresses the strength of relevance (between regions) of “Region 3”. T122 (i, j) is obtained by the following equation 1, for example.

T122 (i, j) = ΣA (i, j, l) × W (l) Equation 1

In Equation 1, Σ is the total sum when l takes values from 1 to N.
A (i, j, l) is a function that takes a binary value of “0” and “1”, and when the value of T121 (i, l) matches the region j, A (i, j, l ) = 1 and A (i, j, l) = 0 if they do not match.
N is the history number N of the communication history 51212 (see FIG. 15).
W (l) is a function to be defined in advance, and is characterized in that the value of W (l) decreases as the value of l increases (monotonically decreasing function). For example, a function using a geometric sequence such as the first term “100” and the common ratio “0.9” may be used. The larger the value of T122 (i, j) calculated by Equation 1, the stronger the relationship with region j in region i. Also, by using W (l) as a monotonically decreasing function, the older the communication performed (the lower the order of communication defined in communication history 51212), the greater the effect on the inter-regional relationship calculated by Equation 1. It can have a meaning that the degree becomes smaller.

  Returning to FIG. 12, the description will be continued. After S31227, the relevance matrix 5122 is updated (S31228). For example, when “Region 1” is set in the transmission source region information 612213 of the relevance matrix update data 61221 and “Region 2” is set in the destination region information 612216, T122 (Region 1, Region 2) and T122 (Region 2) , Region 1) is calculated from Equation 1, and the relevance matrix 5122 is updated using these values.

  When the processing of S31228 is executed, the processing by the relevance matrix processing function 3122 ends. The activation and termination of the relevance matrix processing function 3122 may be a periodic timing in addition to the timing at which the information storage device 121 receives the communication information data 61121, or the timing at which the communication information data 61121 (see FIG. 13) is received. Or a combination of periodic timings.

In the case of regular timing, the update of the history matrix 5121 (see FIG. 15) covers all rows, and invalid data (for example, for rows that have not been updated by receiving the communication information data 61121) , All space) may be stored in T121 (region i, 1) (i = 1, 2,...) Of the history matrix 5121 and the relevance matrix 5122 (see FIG. 16) may be updated.
This is the end of the description of the matrix update flow.

  The third flow is a collection information registration flow in which data transmitted by the information input function 3111 of the information collection terminals 111 and 112 is recorded in the collection information DB (4122) (see FIG. 7) of the information storage device 121. This collection information registration flow starts when the information input function 3111 of the information collection terminals 111 and 112 is activated.

  FIG. 17 is a diagram showing a collection information registration flow. FIG. 17 illustrates an example of a process in which the operator of the information collection terminal 111 records information in the collection information DB (4122) using the information input function 3111. Therefore, the subject of this processing is the control unit 2114 of the information collection terminal 111 and the control unit 2122 of the information storage device 121. The processing starts when the operator of the information collection terminal 111 activates the information input function 3111. The activation method of the information input function 3111 is to operate a button (a specific example of the input unit 2113) assigned on the operation screen displayed on the display unit 2112 of the information collection terminal 111.

  First, the operator inputs necessary information on the information input screen provided by the information input function 3111 (S31111). The information to be input includes text information desired to be shared with the operator of the information display device 131 and information on the time when the input information is generated. At this time, a file such as an image or a moving image may be attached. Since the time does not always coincide with the time when the information is input, basically, the time acquisition function 3115 should not be used for setting. However, this is not limited as long as it is input as an initial value and can be edited. In general, the time acquisition function 3115 is a function for acquiring a time when an information processing event occurs. The event includes, for example, acquisition of position coordinates of the information collection terminals 111 and 112, input of text information, It may be the start or end of communication.

Next, the terminal identification information 41111 is acquired from the owner information 4111 (S31112).
Next, the collection information data 61111 is created from the terminal identification information 4111 and the information input in S31111 (S31113).
Next, the collected information data 61111 is transmitted to the information storage device 121 (S31114). When the processing of S31114 is executed, the information input function 3111 of the information collection terminal 111 ends.

Here, the collection information data 61111 will be described in detail.
FIG. 18 is a diagram illustrating a data example of the collection information data 61111. The collection information data 61111 has terminal identification information 611111, collection information 611112, and time 611113.
The terminal identification information 611111 is the own terminal identification information 41111 acquired in S31112.
The collected information 611112 is the text information input in S31111.
Time 611113 is time information indicating the time when the text information input in S31111 occurs.

  Returning to FIG. 17, the description will be continued. After S31114, the information storage apparatus 121 receives the collected information data 61111 and starts the collected information processing function 3121 to start this processing.

  First, the terminal identification information 41231 and the time 41232 in the location information DB (4123) (see FIG. 8) are searched using the value of the terminal identification information 611111 and the value of the time 611113 as keys, and the source terminal, here the information collection The position information 41233 of the terminal 111 is acquired (S31211). At this time, the search at time 41232 using the time 611113 as a key is an approximate value search.

  Next, the boundary information 41212 in the region definition DB 4121 (see FIG. 5) is searched using the value of the acquired location information 41233 as a key, and the region name 41211 as the region information of the transmission source terminal is acquired (S31212). The boundary information 41212 of the region definition DB 4121 is stored in a spatial data type, and it can be easily determined which boundary information 41212 includes the value of the position information 41233 by a search using a function provided by the database.

  Next, using the value of the acquired area name 41211 as a key, refer to the relevance matrix 5122 (see FIG. 16) to obtain the area information of the area highly relevant (strong) to the area indicated by the value of the area name 41211. Obtain (S31213). Specifically, the value T122 (value of the region name 41211, j) of the relevance matrix 5122 is compared, and a value of j having a large value of T122 (value of the region name 41211, j) is acquired. The number of values of j acquired at this time is arbitrary, but in the present embodiment, it is assumed to be two, and related region 1 and related region 2 are set in descending order of T122 (value of region name 41211, j).

Next, the collected information accumulation data 61111 (see FIG. 19) is created using the acquired related area 1 and related area 2 (S31214).
Next, the created collection information accumulation data 61111 is recorded in the collection information DB (4122) (see FIG. 7) (S31215). When the processing of S31215 is executed, the collected information processing function 3121 of the information storage device 121 is terminated.

Here, the collected information accumulation data 61111 will be described in detail.
FIG. 19 is a diagram illustrating a data example of the collected information accumulation data 61111. The collected information accumulated data 61111 has terminal identification information 612111, terminal location information 612112, terminal area information 612113, collection information 612114, time 612115, related area 1 (612116), and related area 2 (612117).

In the terminal identification information 612111, the value of the terminal identification information 611111 (see FIG. 18) is set.
In the terminal position information 612112, the value of the position information 41233 acquired in S31211 is set.
In the terminal area information 612113, the value of the area name 41211 acquired in S31212 is set.
In the collection information 612114, the value of the collection information 611112 (see FIG. 18) is set.
At time 612115, the value of time 611113 (see FIG. 18) is set.
In the related area 1 (612116), the value of the related area 1 acquired in S31213 is set.
In the related area 2 (612117), the value of the related area 2 acquired in S31213 is set.
This is the end of the description of the collection information registration flow.

The fourth flow is a collection information display flow in which the information display device 131 searches the collection information DB (4122) (see FIG. 7) of the information storage device 121 and displays information on the display unit 2132 (see FIG. 9). It is. The collected information display flow is started when the search condition input function 3132 of the information display device 131 is activated. The operator of the information display device 131 activates the search condition input function 3132 and displays a search condition input screen 71111 (see FIG. 20) used for specifying the search conditions.
Although the detailed description of the collected information display flow itself is omitted, the collected information that satisfies the specified search conditions is extracted by the collected information extraction function 3123 of the information storage device 121, and the extracted collected information is displayed. When the search result is displayed on the display unit 2132 of the information display device 131, the process ends.

FIG. 20 is a screen example of a search condition input screen 71111.
The search condition input screen 71111 has at least an input field 61114 and an input field 61115.
In the input field 61114, a search condition for the transmission source area information (41223) possessed by the collection information DB (4122) can be specified in a pull-down menu format. Therefore, items such as “Region 1”, “Region 2”,... Are registered in the input field 61114 as a list.
The input field 61115 can specify whether or not to include a related area as a search target in a radio button format. Select “Yes” to include, and “No” to not include.

  Further, the search condition input screen 71111 has a check box format input field 61116. The input field 61116 focuses on each record in the collection information DB (4122) or the “current relevance search” method in which the relevant area is included in the search target and extracted by paying attention to the relation between the current areas. One of the “individual relevance search” methods for searching can be specified. If “Yes” is selected in the input field 61115, the related area is included in the search target, and the check box in the input field 61116 is activated. When the check box is turned on, the “current relevance search” method is designated, and when the check box is turned off, the “individual relevance search” method is designated. On the other hand, if “None” is selected in the input field 61115, the related area is not included in the search target, and the check box in the input field 61116 is deactivated.

  When the check box of the input field 61116 is checked on the search condition input screen 71111, the “current relevance search” method is specified and the “search” button is clicked, the information storage device 121 uses the collected information extraction function 3123. With reference to the relationship matrix 5122 (see FIG. 16), the source region information (41223) and the related region (“first related region”) having a strong relationship between the regions at the time of the search are extracted. In the collection information extraction function 3123, after extracting records from the collection information DB (4122) (see FIG. 7) under the conditions specified by the search condition input function 3132, the area indicated by the area information in the input field 61114 is changed to the related area. The collection information DB (4122) is searched again under the condition, and a record is extracted. The extraction in which the area information in the input field 61114 is changed to the related area (the extracted related area is “second related area”) is repeated by the number of the area information of the related area extracted from the relevance matrix 5122.

  Note that as a criterion for determining whether or not to extract a related area, for example, a predetermined threshold value stored in the storage unit 2131 of the information display device 131 or input from the input unit 2133 is used. Good. This threshold value is a value indicating the degree of strength of relevance between regions, and the related region showing a value equal to or greater than the threshold value is assumed to be “highly related”. This threshold value input field may be set in the search condition input screen 71111. The threshold value related to the first related area and the threshold value related to the second related area may be the same value or different values.

  On the other hand, if you clear the check box in the input field 61116, specify the "Individual Relevance Search" method, and click the "Search" button, the area information of the related area is not extracted from the Relevance Matrix 5122, and the collected information In the DB (4122), the area information of the related area stored in the related area 1 (41226) and the related area 2 (41227) is used. That is, the related area having a strong relation between the transmission source area information (41223) and the area at the time when the collected information is collected is extracted. Thereby, basically the same result can be obtained as compared with the case of the current relevance search.

  Further, the search condition input screen 71111 has an input field 61113 in a text box format. In the input field 61113, a start time and an end time in which year / month / day / hour / minute can be input can be input, and a period including these times can be specified as a search condition. When the “search” button is pressed after specifying the period, the information storage device 121 refers to the collection information DB (4122) (FIG. 7) by the collection information extraction function 3123, and the value of the time (41225) is Records included in the specified period are extracted.

Next, the search result displayed on the display unit 2132 of the information display device 131 by pressing the “search” button on the search condition input screen 71111 will be described.
FIG. 21 is a screen example of the search result screen. The search result screen is a screen for displaying the search result on the display unit 2132 of the information display device 131. The search result screen of FIG. 21 is displayed on the search condition input screen 71111 (see FIG. 20) by selecting “Region 1” from the pull-down menu of the input column 61114 and checking the checkbox of the input column 61116. It is a screen which shows the search result displayed after pushing a button (current relevance search). In the text box of the input column 61113, for example, 10:00 of 2010/04/10 is designated and input as the start time, and for example, 14:00 of 2010/04/10 is designated and input as the end time. .

  In the search result screen of FIG. 21, a table with three columns is displayed. In the left column of the table, the collected information related to the region 1 specified by the input column 61114 is displayed as a list as time series information that progresses downward as time passes. This time-series information describes the contents of communication performed by an on-site worker in the region 1 using the information collection terminals 111 and 112.

  In the center column of the table of the three columns, the collected information related to the region 2 that is the most related region 1 (indicated as “association 1” in FIG. 21) is moved downward as time passes. Are listed as simple time series information. This time-series information describes the contents of communication performed by the workers in the area 1 using the information collecting terminals 111 and 112 while communicating with the workers in the area 1.

  In the right column of the table in the three columns, the collection information on the region 3 that is the second most related region 2 (indicated as “relation 2” in FIG. 21) It is displayed as a list of time-series information that advances. This time-series information describes the contents of communication performed by the workers in the area 1 and the on-site workers in the area 3 using the information collection terminals 111 and 112.

  In the example of FIG. 21, the case where two related areas exist with respect to the area 1 is shown, but if there are other related areas that are strongly related to each other, the corresponding An arbitrary number of time series information is additionally displayed on the right side of the right column.

  FIG. 22 shows another example of the search result screen. The search result screen shown in FIG. 22 is displayed on the search condition input screen 71111 (see FIG. 20) by selecting “Region 1” from the pull-down menu in the input field 61114 and selecting “Search” with the check box in the input field 61116 unchecked. It is a screen which shows the search result displayed after pushing a button (individual relevance search). Note that the specification of the time range in the input field 61113 is the same as in FIG.

  The search result screen in FIG. 22 displays the strength of relevance between regions in a tree format. That is, the collection information related to the region 1 specified by the input field 61114 is displayed as a list as time-series information that progresses downward as time passes. At this time, “+” (open state) and “−” (closed state) indicating the opening and closing of the tree are attached to each of the collected information regarding the region 1, and “+” is displayed on the input unit 2133 of the information display device 131. By operating “” and “−”, the open state and the closed state of the tree can be adjusted.

  If there is a related area for certain collected information about area 1, set it to open in the related area 1 (41226) and related area 2 (41227) of the collected information DB (4122) (see Fig. 7). The two related areas (indicated as “Related 1” and “Related 2” in FIG. 21) are displayed in an expanded manner. At this time, indentation is determined for “Relation 1” and “Relation 2” that are displayed in accordance with the strength of the relationship between regions. That is, the stronger related area 1 is displayed on the left side of the related area 2. By displaying hierarchically in this way, it is possible to see at a glance the strength of the relationship between regions.

  Since FIG. 22 is an example of a screen related to the individual relevance search, only two related areas are displayed according to the format of the collected information DB (4122) (see FIG. 7). Related areas may be displayed in multiple layers.

  FIG. 23 shows still another example of the search result screen. The search result screen of FIG. 23 is displayed on the search condition input screen 71111 (see FIG. 20) by selecting “Region 1” from the pull-down menu of the input field 61114 and “Search” when the check box of the input field 61116 is off. It is a screen which shows the search result displayed after pushing a button (individual relevance search). Note that the specification of the time range in the input field 61113 is the same as in FIG.

  The search result screen in FIG. 23 displays a map of areas targeted by the time-series information display system of the present embodiment, and displays the strength of relevance between the areas on the map. That is, the map is displayed at the top of the screen, and a table equivalent to the table shown in FIG. 21 is displayed at the bottom. The table in FIG. 21 is a table showing the search results of the current relevance search. Therefore, there are some differences from this example in which the individual relevance search is performed, but both have two related areas. There is no difference in expression in the table. Note that the map in the upper part of FIG. 23 can be created using, for example, the region definition DB 4121 (FIG. 5).

  In the upper map of FIG. 23, a map including a region including region 1, related region 1, and related region 2 is displayed. For the target region 1, the related region 1 and the related region 2 that are strongly related to each other are highlighted. The stronger the relationship between regions, the greater the degree of highlighting.

  When one of the time series information described in the table at the bottom of FIG. 23 (for example, the shaded display in the table at the bottom of FIG. 23) is designated by the input unit 2133 of the information display device 131, the designated time series is designated. Information, that is, the related area related to the collected information is changed, and the lower table of FIG. 23 is updated. Along with the update, the map in the upper part of FIG. 23 and the highlight displayed on the map are also updated. Thus, since the relationship between regions can be visually displayed on a map, the supervisor at the site using the information display device 131 can accurately grasp the situation of the disaster.

≪Summary≫
According to the present embodiment, an operator of a system that collects information indicating events that exist over a wide area can easily understand the relationship between those events.
Specifically, based on the history of communication between the information collection terminals 111 and 112 in a situation where organizational correspondence is required by classifying, organizing and displaying the information collected from the wide area by the information collection terminals 111 and 112. Thus, it is possible to create a relevance matrix 5122 and display time series information including the time series status before and after. With this display, the system operator can easily grasp the context of the event that has occurred and the relationship between the regions.

≪Others≫
The above embodiment is suitable for carrying out the present invention, but the form of implementation is not limited thereto, and various modifications can be made without departing from the scope of the present invention. It is.

For example, in this embodiment, two devices, the information storage device 121 and the information display device 131, are used as devices used by the disaster site supervisor in the time-series information display system, and these are part of the event management device. I'm in charge. In other words, the event management device is composed of two devices. However, the event management device may be composed of one device. In this case, the event management apparatus includes both hardware and software (functions) included in the information storage device 121 and the information display device 131. Therefore, the storage unit 2121 of the information storage device 121 and the storage unit 2131 of the information display device 131 are regarded as one storage unit. Further, the control unit 2122 of the information storage device 121 and the control unit 2134 of the information display device 131 are regarded as one control unit. Further, the display unit 2132 and the input unit 2133 of the information display device 131 are regarded as one display unit and input unit.
Further, the event management apparatus may be composed of three or more apparatuses. In this case, each device includes a part or all of hardware and software (function) included in the information storage device 121 and the information display device 131.

  Further, in the present embodiment, in the matrix update flow (second flow), the information collection terminal 111 serving as the communication source transmits the communication information data 61121 to the information storage device 121 (S31128 in FIG. 12B). reference). However, the information collection terminal 112 that is a communication receiving destination may perform the transmission. For example, it may be performed when a communication failure occurs in the information collection terminal 111 serving as a transmission source and the transmission cannot be performed. When the information storage device 121 detects the occurrence of a communication failure, the information storage device 121 requests the communication information data 61121 from the information collection terminal 112 serving as a reception destination, and acquires the corresponding communication information data 61121 from the information collection terminal 112.

  In the present embodiment, in the history matrix 5121 (see FIG. 15), basically, the values of N communication histories 51212 corresponding to the “region i” to be a record are stored in regions other than the region i. Is done. This is because it is considered that it is not necessary to communicate between the information collection terminals 111 and 112 in the region i. However, when such communication is performed, for example, the value of the corresponding communication history 51212 may be blank.

  In this embodiment, the information collection terminal that acquires the collection information in the collection information registration flow (third flow) is different from the information collection terminal that communicates with each other in the matrix update flow (second flow). Explained as a thing. However, the information collection terminal of the collection information registration flow and the information collection terminal of the matrix update flow may be the same. That is, there may be a case where an operator at the site who has performed communication inputs collection information such as text.

  In the present embodiment, a positioning system such as GPS is used to acquire the position information of the information collection terminal. However, as a positioning system, a satellite positioning system such as GLONASS, Galileo, quasi-zenith satellite, etc. may be used in addition to GPS. Moreover, although the above-mentioned is an outdoor position detection system, an indoor position detection system such as mobile phone base station information or a beacon system may be used, and these hybrid systems can be used both outdoors and indoors. May be used.

  Further, in the present embodiment, on the search result screen displayed on the display unit 2132 of the information display device 131, a map showing each region is displayed, and related regions are highlighted (see FIG. 23). However, for example, the route followed by each of the information collection terminals 111 and 112 may be displayed on the map. Specifically, the route is drawn with reference to the values of the terminal identification information 41221, the transmission source location information 41222, and the time 41225 in the collection information DB (4122) (see FIG. 7), or the location information DB (4123) ( The route may be drawn with reference to the values of the terminal identification information 41231, time 41232, and position information 41233 in FIG. Such a display provides an at-a-glance view of the relationships between highlighted regions and the behavior of field workers, and strongly assists field supervisors in providing optimal command.

Further, in the present embodiment, the means configured by hardware can be configured by software, and the means configured by software can also be configured by hardware.
In addition, it is possible to realize a technique in which various techniques described in this embodiment are appropriately combined.

  In addition, specific configurations of hardware, software, flowcharts, and the like can be changed as appropriate without departing from the spirit of the present invention.

111,112 Information collection terminal (mobile terminal)
121 Information storage device (part of event management device)
131 Information display device (part of event management device)
4121 Region definition DB (map information)
4122 Collected information DB
4123 Location information DB
5121 History matrix
5122 Relevance matrix

Claims (5)

In an event management device that connects to one or more mobile terminals in a communicable manner and manages an event that has occurred in an area including the position of the mobile terminal that is positioned using a positioning system,
The storage unit of the event management device stores map information that identifies the region,
The control unit of the event management device,
Obtaining the position of the mobile terminal from each mobile terminal and the time when the mobile terminal was located, and storing it in the storage unit;
From the mobile terminals that have communicated with each other, the identification information of the mobile terminal that is the transmission source of the communication, the identification information of the mobile terminal that is the reception destination of the communication, and the time when the communication has occurred are acquired and stored in the storage unit Control to
With reference to the storage unit, at the time of the communication, control for specifying a region including the location of the mobile terminal serving as the transmission source and a region including the location of the mobile terminal serving as the reception destination;
For each region, control for generating a history matrix that determines the region where the mobile terminal that communicated with the mobile terminal that was in the region and the order of the communication,
Control for generating a relevance matrix that calculates the strength of relevance with each region due to the communication, for each region, by the calculation formula using the history matrix and the region as a variable,
From the mobile terminal that has input the content of the event, the identification information of the mobile terminal, the content of the input event, and the time when the input occurred, and control to store in the storage unit,
Referring to the storage unit, the region including the location of the mobile terminal that made the input at the time when the input occurred, and the region showing the relevance having a strength equal to or greater than a predetermined threshold for the region Control to identify as a region,
When there is a designation of a region from the input unit of the event management device, the display unit of the event management device displays the contents of the events that have occurred in the designated region in time series, and the related region of the region And an event management device that executes control for displaying the contents of events that occurred in a time series. The event management according to claim 1, wherein the calculation formula has a property that the degree of influence on the strength of relevance of the relevance matrix decreases as the order of communication defined by the history matrix decreases. apparatus. The control unit of the event management device,
When an area is specified from the input unit of the event management apparatus, the related matrix of the specified area is set as the first related area with reference to the relevance matrix, and the first related area is predetermined. Control for specifying the region indicating the relationship having a strength equal to or greater than a threshold value as a second related region;
The event according to claim 1 or 2, wherein control is performed to display in a time series the content of the event that occurred in the second related area on the display unit of the event management device. Management device. In an event management method in an event management apparatus that connects to one or more mobile terminals in a communicable manner and manages an event that has occurred in an area including the position of the mobile terminal that is positioned using a positioning system,
The storage unit of the event management device stores map information that identifies the region,
The control unit of the event management device,
Obtaining the position of the mobile terminal and the time when the mobile terminal was at the position from each mobile terminal, and storing it in the storage unit;
From the mobile terminals that have communicated with each other, the identification information of the mobile terminal that is the transmission source of the communication, the identification information of the mobile terminal that is the reception destination of the communication, and the time when the communication has occurred are acquired and stored in the storage unit And steps to
With reference to the storage unit, at the time of the communication, identifying a region including the location of the mobile terminal serving as the transmission source and a region including the location of the mobile terminal serving as the reception destination;
For each region, generating a history matrix that defines the region in which the mobile terminal communicated with the mobile terminal in the region and the order of the communication;
Generating a relevance matrix in which the strength of relevance with each region caused by the communication is calculated for each of the regions by a calculation formula using the history matrix and the region as a variable;
From the mobile terminal that has input the content of the event, obtaining the identification information of the mobile terminal, the content of the input event, and the time when the input occurred, and storing it in the storage unit;
Referring to the storage unit, the region including the location of the mobile terminal that made the input at the time when the input occurred, and the region showing the relevance having a strength equal to or greater than a predetermined threshold for the region Step to identify as a region,
When there is a designation of a region from the input unit of the event management device, the display unit of the event management device displays the contents of the events that have occurred in the designated region in time series, and the related region of the region And a step of displaying the contents of events that occurred in time series in a time series. In an event management program that functions as a computer, an event management device that is communicably connected to one or more mobile terminals and manages an event that occurs in an area including the location of the mobile terminal that is positioned using a positioning system,
The storage unit of the event management device stores map information that identifies the region,
In the control unit of the event management device,
A process of acquiring the position of the mobile terminal and the time when the mobile terminal was at that position from each mobile terminal, and storing it in the storage unit;
From the mobile terminals that have communicated with each other, the identification information of the mobile terminal that is the transmission source of the communication, the identification information of the mobile terminal that is the reception destination of the communication, and the time when the communication has occurred are acquired and stored in the storage unit Processing to
With reference to the storage unit, at a time when the communication was performed, a process of specifying a region including the position of the mobile terminal serving as the transmission source and a region including the position of the mobile terminal serving as the reception destination;
For each region, a process for generating a history matrix that determines the region where the mobile terminal that communicated with the mobile terminal that was in the region and the order of the communication was established;
A process of generating a relevance matrix in which the strength of relevance with each region caused by the communication is calculated for each region by the calculation formula using the history matrix and the region as a variable;
From the mobile terminal that has input the content of the event, the identification information of the mobile terminal, the content of the input event, and the time when the input occurred, and the process of storing in the storage unit,
Referring to the storage unit, the region including the location of the mobile terminal that made the input at the time when the input occurred, and the region showing the relevance having a strength equal to or greater than a predetermined threshold for the region Processing to identify as a region,
When there is a designation of a region from the input unit of the event management device, the display unit of the event management device displays the contents of the events that have occurred in the designated region in time series, and the related region of the region An event management program that executes a process for displaying the contents of events that occurred in chronological order.