JP2018137579A - Monitoring support device, portable terminal, and monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow for accurate identification whether or not multiple pieces of contribution information are related matters.SOLUTION: A contribution information acquisition unit 201 acquires contribution information which a user contributed with regard to a witnessed case. When an image of a case shot by the user is included in the contribution information, an object of shooting recognition unit 202 recognizes the object of shooting in that image. A first case determination unit 203 determines whether or not there is a possibility that multiple cases are the same case, based on multiple pieces of contribution information thus acquired. With regard to the multiple cases determined that there is the possibility of the same case, a second case determination unit 204 determines whether or not the multiple cases are the same case from a relation of information acquisition positions of the multiple cases.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for supporting monitoring.

  There are technologies that support monitoring. For example, Patent Document 1 discloses a technique for integrating the position information of the same person among the position information of the persons detected from images taken by a plurality of imaging units and monitoring the actions of the person over a wide range.

JP 2010-206405 A

When a place where there are many people, such as a marathon event, is a monitoring area, a general person may witness a case such as a suspicious person or a suspicious object before the observer. In that case, if the information on the case posted by the witness of the case to the SNS or the like can be utilized, the case can be dealt with more quickly. However, cases related to each other are included in multiple post information (for example, two cases of snatching and victim injury, and multiple cases of witnessing the same suspicious person at different locations) If they are recognized as separate cases, excessive personnel may be devoted to responding to the case, resulting in a lack of preparation for other cases.
Accordingly, an object of the present invention is to make it possible to accurately distinguish whether or not a plurality of pieces of post information are related to each other.

  In order to achieve the above object, the present invention provides post information that includes type information related to a case witnessed by each user and post information including an information acquisition position from which the type information is acquired from a plurality of communication terminals. An acquisition unit, and a determination unit that determines whether or not cases witnessed by a plurality of users are related to each other based on the type information and the information acquisition position included in the acquired plurality of pieces of posted information A monitoring support device is provided.

In the above monitoring support device, the determination unit may determine that the plurality of cases are related to each other when the information acquisition positions included in the plurality of posted information are included in a predetermined range.
The posted information includes image data captured by the communication terminal and orientation information when the image data is captured, and the determination unit includes the information acquisition position included in the plurality of posted information and the information Based on the azimuth information, it may be determined whether the plurality of cases are related to each other.

In the above monitoring support device, the posted information includes elevation angle information in azimuth information when the image data is captured, and the determination unit increases the elevation angle included in the acquired posted information. The determination may be performed with a wide range.
In the above monitoring support device, the post information includes information indicating the occurrence time of the case, and the determination unit is configured such that the occurrence time included in the plurality of post information is not included in a predetermined period. It may be determined that the plurality of cases are not related to each other.

  In addition, the present invention provides a type information acquisition unit that acquires type information related to a case when a user witnesses a case that occurred in the surroundings, and a position acquisition unit that acquires an information acquisition position from which the type information has been acquired. A plurality of users based on the type information and the information acquisition positions included in the plurality of post information, and a generation unit that generates post information including the type information and the information acquisition positions regarding the acquired case Provided is a portable terminal including a transmission support unit that transmits the generated posted information to a monitoring support device that includes a determination unit that determines whether or not witnessed cases are related to each other.

  In addition, the present invention is a post information acquisition unit that acquires post information including a type information related to a case witnessed by each user and an information acquisition position from which the type information is acquired, from a plurality of communication terminals. A monitoring support device comprising: a determination unit that determines whether or not incidents witnessed by a plurality of users are related to each other based on the type information and the information acquisition position included in the plurality of posted information; When a user witnesses a case that occurred in step 1, a type information acquisition unit that acquires type information related to the case, a position acquisition unit that acquires an information acquisition position from which the type information was acquired, and the acquired case Based on the type information and the information acquisition position included in a plurality of the post information, a generation unit that generates post information including the type information and the information acquisition position. A monitoring system comprising: a monitoring support device including a determination unit that determines whether or not cases witnessed by a user of the user are related to each other; and a mobile terminal including a transmission unit that transmits the generated post information .

  According to the present invention, it is possible to accurately distinguish whether or not a plurality of pieces of post information are related to each other.

The figure showing the whole structure of the monitoring system which concerns on an Example The figure showing the hardware constitutions of the portable terminal Diagram showing the functional configuration realized by the monitoring system The figure showing an example of the displayed input screen The figure showing an example of the produced | generated alerting | reporting information The figure showing an example of the correspondence situation memorized A diagram showing an example of the displayed response status The figure showing an example of the operation | movement procedure of each apparatus in a determination process The figure showing an example of the operation | movement procedure of each apparatus in feedback A diagram showing an example of a predetermined route A diagram showing an example of overlapping shooting ranges A diagram showing an example of the height of a suspicious object The figure showing the functional structure which the monitoring center server apparatus of a modification implement | achieves

[1] Embodiment FIG. 1 shows an overall configuration of a monitoring system 1 according to an embodiment. The monitoring system 1 is a system that supports the monitoring staff arranged in a defined monitoring area and the operator in the monitoring center in cooperation to monitor the monitoring area.

  As the monitoring area, in addition to an area in a facility where people gather such as department stores, amusement parks, concert venues, etc., a wide area such as a marathon or a parade course and its surroundings are determined. In the surveillance area, various incidents such as the appearance of a suspicious person, the discovery of a suspicious object, the entry into a prohibited place, the occurrence of an accident, the occurrence of a fight and the occurrence of a fuss have occurred. Any case should be witnessed early because it may cause some harm to the people and things around if left alone.

  The observer is a person who has been given a role of witnessing various incidents that occur in the monitoring area and taking appropriate actions (contacting the parties concerned and taking action to converge the situation). On the other hand, in the monitoring area, there are many people other than the monitoring personnel (referred to as “general people” in the present embodiment), so the general people may witness the case before the monitoring personnel. The monitoring system 1 assists those ordinary people to cooperate to grasp the case and respond to the grasped case.

  The monitoring system 1 includes a network 2, an intranet 3, a plurality of portable terminals 10, a monitoring center server device 20, and an operator terminal 30. The network 2 is a communication system including a mobile communication network and the Internet, and mediates exchange of data between devices connected to the own system. The mobile terminal 10 is connected to the network 2 by wireless communication such as mobile communication or wireless LAN (Local Area Network) communication.

  The intranet 3 is a communication system including, for example, a LAN and a WAN (Wide Area Network), and mediates data exchange between devices connected to the own system. The intranet 3 is connected to the network 2. A monitoring center server device 20 and an operator terminal 30 are connected to the intranet 3. The connection with the intranet 3 may be either wired communication or wireless communication.

  The mobile terminal 10 is a terminal that a general person in the monitoring area carries and carries, for example, a smartphone. The mobile terminal 10 has a function of displaying an SNS (Social Networking Service) site and posting an article to the SNS site by a user operation (specifically, a function of transmitting posted information indicating the content to be posted). doing. In this embodiment, a case posting site is provided as an SNS site for posting information about a case that occurred in the monitoring area, and a post (suspicious person) related to a case witnessed in the monitoring area using the mobile terminal 10. And posting of suspicious object sighting information, accident sighting information, etc.).

  The monitoring center server device 20 is a device that executes processing for supporting monitoring of a monitoring area, and is an example of the “monitoring support device” of the present invention. In this embodiment, the monitoring center server device 20 provides the case posting site. The monitoring center server device 20 receives a plurality of pieces of post information transmitted from the plurality of mobile terminals 10, and determines the same case from among a plurality of cases indicated by the pieces of post information.

  For example, when a certain suspicious person walks and multiple ordinary people witness in different places, the posted information posted by those ordinary persons will indicate multiple cases each showing suspicious person sightings. Shows the same case. The monitoring center server apparatus 20 determines such a plurality of cases as the same case, and outputs notification information that conveys the plurality of cases as the same case to the operator terminal 30.

  The operator terminal 30 is a terminal used by the operator of the monitoring center. The operator terminal 30 displays the notification information output from the monitoring center server device 20 to notify the operator of the occurrence of a case witnessed in the monitoring area. The operator accurately grasps the incident that occurred in the monitoring area based on the notification information displayed in this manner, reports it to the person in charge of monitoring, and instructs the monitoring staff to take necessary measures.

  FIG. 2 shows a hardware configuration of the mobile terminal 10. The portable terminal 10 is a computer that includes a processor 11, a memory 12, a storage 13, a communication device 14, an input device 15, an output device 16, a sensor device 17, and a photographing device 18. The processor 11 is a device that includes a CPU (Central Processing Unit) and the like and has a function of operating an operating system to control the entire computer. The processor 11 reads a program, data, and the like from the storage 13 and the communication device 14 to the memory 12, and executes various processes according to these.

  The memory 12 is a recording device having a function of storing data that can be read by the processor 11, and is a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, for example. The storage 13 is a recording device having a function of storing data that can be read by the processor 11, and is, for example, a hard disk drive or a flash memory. The communication device 14 is a communication device having a function of performing communication between computers via a wired network and / or a wireless network. In the mobile terminal 10, the communication device 14 performs wireless communication based on, for example, mobile communication or wireless LAN standards.

  The input device 15 is an input device having a function of receiving input from the outside. In the mobile terminal 10, the input device 15 includes, for example, a touch sensor, a button, a microphone, and the like. The output device 16 is an output device having a function of performing output to the outside. In the mobile terminal 10, the output device 16 includes a display, and the touch sensor of the input device 15 and the display of the output device 16 form an integrated touch screen.

  The sensor device 17 is a device having a function of detecting a target physical quantity. For example, the sensor device 17 measures its own position using a signal from a GPS (Global Positioning System) satellite, and supplies position information (information indicating latitude and longitude) indicating the measured position to the processor 11. In addition, the sensor device 17 detects geomagnetism, measures the azimuth, elevation angle, and depression angle in which the direction serving as the reference of the terminal is directed, and supplies the measurement results to the processor 11.

  The photographing device 18 is a device having a function of photographing the surroundings. The imaging device 18 is an example of the “imaging unit” in the present invention. The imaging device 18 includes a lens, an image sensor, and the like, and images a surrounding person or scene represented by light incident from the lens. When the image capturing device 18 captures an image, in addition to the image capturing time, metadata indicating the image capturing position and image capturing direction (azimuth, elevation angle and depression angle) measured by the sensor device 17 is generated and stored together with the captured image. . As described above, the sensor device 17 is a unit that measures the shooting position of an image shot by the shooting device 18, and is a unit that measures the shooting direction.

  The monitoring center server device 20 is a computer including a processor, a memory, a storage, and a communication device. These are all devices having the same functions as the devices of the same name shown in FIG. In the monitoring center server device 20, the communication device performs wired communication conforming to the standard of wired LAN (wireless communication may be performed).

  The operator terminal 30 is a computer that includes a processor, a memory, a storage, a communication device, an input device, and an output device. These are all devices having the same functions as the devices of the same name shown in FIG. In the operator terminal 30, the communication device performs wired communication based on the standard of the wired LAN (wireless communication may be performed), and the input device includes a keyboard, a mouse, a microphone, and the like.

The functions described below are realized by the processor of each device included in the monitoring system 1 executing a program to control each unit.
FIG. 3 shows a functional configuration realized by the monitoring system 1. In FIG. 3, only one mobile terminal 10 is shown, but the other mobile terminals 10 have the same functional configuration.

  The mobile terminal 10 includes an input screen display unit 101, an input operation reception unit 102, a position information acquisition unit 103, an image storage unit 104, a post information generation unit 105, a post information transmission unit 106, and a correspondence status display unit. 107. The monitoring center server device 20 includes a posted information acquisition unit 201, a shooting target recognition unit 202, a first case determination unit 203, a second case determination unit 204, a notification information generation unit 205, and a notification information output unit 206. A response status storage unit 207 and a response status notification unit 208. The operator terminal 30 includes a notification information display unit 301 and a case related operation reception unit 302.

The input screen display unit 101 of the mobile terminal 10 displays an input screen for inputting information when a user who has witnessed a case that occurred in the vicinity (the above-described general person) wants to post information on the case. .
FIG. 4 shows an example of the displayed input screen. The input screen display unit 101 displays a character string “Please enter a noticed case”, an input field A1 of type information regarding the case, a remark of the case, and an information acquisition position as a screen of “case posting site”. A remarks column A2 to be input, an input column A3 for an image in which a case is photographed, an acquisition button B1 for the current position, an image attachment button B2, and a posting button B3 are displayed. This case posting site may be provided as a website accessible from a general-purpose browser, or may be provided as an application that can be downloaded to the mobile terminal 10 and connected to a dedicated website.

  The input operation accepting unit 102 accepts an operation for inputting information related to a case on this input screen. The input operation accepting unit 102 accepts, for example, an operation in which the input screen display unit 101 displays a software keyboard (not shown) and the user operates the keyboard to input a character string as an operation for inputting information related to the case. In the example of FIG. 4, type information relating to the case of “suspicious object” is displayed in the input field A1 as a character string input by this operation. As described above, the input operation receiving unit 102 receives the user's input operation, and acquires the type information related to the case when the user witnesses the case that occurred in the vicinity. The input operation reception unit 102 is an example of the “type information acquisition unit” in the present invention.

  In the remarks column A2, remarks and information acquisition positions of the case “red suspicious bag, crosswalk in front of α station” are displayed. In order to further simplify the input operation, in the input field A1, by selecting a case such as “suspicious object”, “suspicious person”, “fire” from the pull-down menu, it is possible to select type information regarding the case. May be. Alternatively, a case to be posted first may be selected and moved to a case-specific web page such as “suspicious object” so that the user can post.

  When an operation of pressing the acquisition button B1 or the posting button B3 is performed, the input operation reception unit 102 notifies the position information acquisition unit 103 to that effect. When the posting button B3 is pressed, the position information acquisition unit 103 acquires the position information of the mobile terminal as the position where the type information related to the case is acquired by the input operation reception unit 102 (the information acquisition position described above). This information acquisition position, that is, the position where the type information is acquired is the position where the user who witnessed the case entered the type information related to the case, and is the position that can be regarded as the occurrence position of the case. The position information acquisition unit 103 is an example of the “position acquisition unit” in the present invention. Further, even when the current position acquisition button B1 is pressed, the position information acquisition unit 103 acquires the position information of the mobile terminal at that time as the information acquisition position.

  As described above, the information acquisition position may be a posting position where the posting button B3 is pressed (position when the user performs a posting operation), or when the user witnesses a case, the user presses the input button B1. The pressed position may be used. When the acquisition button B1 is pressed, the position information is not newly acquired even if the posting button B3 is pressed. For example, when the user exits the ticket gate of α station and finds a suspicious object at the pedestrian crossing in front of the station, the position information of the place where the acquisition button B1 is pressed in “the crosswalk in front of α station” is acquired. Alternatively, when the place where the posting button B3 is pressed is “the place where the ticket gate of α station is exited”, the position information of the place is acquired. When receiving the notification that the operation of pressing the acquisition button B1 or the posting button B3 has been performed, the position information acquisition unit 103 measures the position of the own terminal and acquires the measurement result as the information acquisition position.

  The information acquisition position is, for example, latitude and longitude information, but other information may be used. For example, the mobile terminal 10 stores map information including place names of places, and the position information acquisition unit 103 acquires the place names on the map including the measured latitude and longitude as information indicating the information acquisition position. Also good. The position information acquisition unit 103 may supply the acquired information acquisition position to the input screen display unit 101, and the input screen display unit 101 may display the supplied information in the remarks column A2.

  When an operation of pressing the image attachment button B2 is performed, the input operation reception unit 102 notifies the image storage unit 104 to that effect. The image storage unit 104 stores images (including still images (photos) and moving images (videos)) taken by the terminal itself. When receiving the notification from the input operation receiving unit 102, the image storage unit 104 supplies a list of stored images to the input screen display unit 101, and the input screen display unit 101 displays the list. When the user selects an image obtained by photographing a case that the user has witnessed from the list, the image storage unit 104 supplies the selected image to the input screen display unit 101, and the input screen display unit 101 displays the supplied image. Displayed in the image input field A3.

  The input screen display unit 101 displays the posting button B3 in a state that the user cannot press until at least the type information related to the case input in the input field A1 is selected. You may make it display in the state which a user can push button B3. When the user presses the posting button B3, the posting information generation unit 105 is supplied with information related to the input case.

  In the present embodiment, the input operation receiving unit 102 supplies a character string indicating the type information regarding the input case to the posted information generating unit 105, and the position information acquiring unit 103 uses the acquired position information (information acquisition position). The information is supplied to the posting information generation unit 105. In addition, when an image is input to the input field A3 for an image in which the incident is photographed, the image storage unit 104 supplies the input image to the post information generation unit 105.

  The posting information generation unit 105 generates posting information for posting information related to the case witnessed by the user. The posting information generation unit 105 generates at least information including the type information and information acquisition position regarding the case as posting information, and when an image obtained by photographing the case is input, in addition to the image data obtained by photographing the case The information including is generated as post information. The posted information generation unit 105 is an example of the “generation unit” in the present invention. Also, the posting information generation unit 105 assigns a terminal ID (Identification) that identifies the terminal itself to the posting information so that the posting source of the posting information can be known. The posted information generation unit 105 supplies the posted information with the terminal ID to the posted information transmission unit 106.

  The posted information transmitting unit 106 transmits the posted information generated by the posted information generating unit 105 to the monitoring center server device 20. The posted information transmitting unit 106 is an example of the “transmitting unit” in the present invention. The posting information transmission unit 106 stores destination information such as an IP (Internet Protocol) address of the monitoring center server device 20, and when the posting information is supplied from the posting information generation unit 105, the posting information is sent to the posting information transmission unit 106. Send to destination.

  The posted information acquisition unit 201 of the monitoring center server device 20 acquires posted information posted on the case that the user has witnessed. In the present embodiment, the posting information acquisition unit 201 captures the posting information transmitted from each of the plurality of mobile terminals 10, that is, the type information regarding the cases witnessed by each user, the information acquisition position, and the cases by the mobile terminal 10. Post information including the received image data is acquired from a plurality of portable terminals 10. The posted information acquisition unit 201 is an example of the “posted information acquisition unit” in the present invention. The posted information acquisition unit 201 acquires the terminal ID of the transmission source mobile terminal 10 together with the posted information, and supplies the acquired posted information to the imaging target recognition unit 202 and the first case determination unit 203.

  When the posted information acquired by the posted information acquisition unit 201 includes an image of the case, the shooting target recognition unit 202 recognizes the shooting target reflected in the image using image recognition technology. To do. The shooting target recognition unit 202 recognizes a person included in an image obtained by shooting a case as a shooting target using, for example, a technique for recognizing a person included in the image (Japanese Patent Laid-Open No. 2010-206405). To do.

  In addition, the photographing target recognition unit 202 stores, for example, images photographed from various angles with respect to an object that may be witnessed in the monitoring area, together with the feature amount of the feature point of the image and the name of the object. The object here includes, for example, a paper bag, a bag, a cardboard box, and the like as an object that may be witnessed as a suspicious object. The shooting target recognition unit 202 recognizes an object having the highest similarity as a shooting target compared to the feature amount of the feature point extracted from the case image indicated by the supplied post information.

  Other known techniques may be used as long as the technique recognizes the subject to be photographed from the image. Further, the photographing target recognition unit 202 may recognize the color of the photographing target (for example, a black bag or a red bag). The shooting target recognition unit 202 supplies information indicating the recognized shooting target (for example, the feature amount, name, color, etc. of the recognized shooting target) to the first case determination unit 203 together with the posted information that has been recognized.

  Prior to the second case determination unit 204, the first case determination unit 203 determines whether or not the plurality of cases may be the same case based on a plurality of pieces of post information acquired by the post information acquisition unit 201. Determine whether. For example, if the first case determination unit 203 is a plurality of pieces of post information including image data obtained by shooting a case, for example, the similarity of information indicating the shooting target supplied from the shooting target recognition unit 202 for the posted information If the post is higher than the standard set, it is determined that multiple cases indicated by the posted information are the same case, and those that are clearly determined not to have the same case are excluded. . The determination by the first case determination unit 203 is a pre-processing of the determination by the second case determination unit 204 and is not necessarily executed. Alternatively, the determination by the second case determination unit 204 may be performed first, and the determination by the first case determination unit 203 may be performed as post-processing.

  The similarity of the information indicating the imaging target is represented by, for example, a difference in the feature amount of the recognized imaging target (the similarity is higher as the difference is smaller). Further, the similarity may be expressed by the recognized name difference and color difference of the photographing target. The first case determination unit 203 determines that the similarity is higher than the reference when, for example, the name and the color completely match. Even when the same object is photographed, it may appear to be a different shape or color depending on the direction in which the object is photographed or how the light strikes.

  Therefore, the first case determination unit 203 is the case where the names are the same and the colors are slightly different (such as red and beige), or the objects are similar in shape and shape (such as a messenger bag and a waist bag). Alternatively, it may be determined that the similarity is higher than the reference. The first case determination unit 203 makes the above determination by comparing the type information related to the case indicated by the post information for post information that does not include the case image data.

  As the type information related to the case, information indicating the type of the case (suspicious person, suspicious object, intrusion, accident, fight, boyfriend, etc.) is selected. Further, as remark information, information indicating the details (for example, if it is a suspicious person, clothes, physique, age, sex, etc., if it is a suspicious object, size, color, material, etc.) may be input. The first case determination unit 203 determines that there is a possibility that the cases are the same when the similarity of the information is higher than a predetermined standard.

  The first case determination unit 203 may determine that the degree of similarity is higher than the reference when the case type and details completely match, or the item type matches and the case details match. It may be determined that the degree of similarity is higher than the reference when the number or ratio of the number is greater than or equal to a threshold. Further, the first case determination unit 203 may determine whether or not the similarity is higher than the reference by using both type information regarding the case and image data obtained by photographing the case.

  When the first case determination unit 203 determines a plurality of cases having the same possibility as described above, the first case determination unit 203 supplies a plurality of pieces of post information indicating the plurality of cases to the second case determination unit 204. The second case determination unit 204 determines whether the cases witnessed by a plurality of users are the same based on the type information and the information acquisition positions included in the plurality of pieces of post information acquired by the post information acquisition unit 201. judge. The second case determination unit 204 is an example of the “determination unit” in the present invention.

  In the present embodiment, the second case determination unit 204 determines a plurality of cases that are determined to be the same case by the first case determination unit 203 from the relationship between the information acquisition positions of the plurality of cases. It is determined whether or not multiple cases are the same case. Specifically, the second case determination unit 204, when each information acquisition position of the plurality of cases included in the plurality of pieces of post information acquired by the post information acquisition unit 201 is included in a predetermined range, It is determined that multiple cases are the same case.

  The predetermined range is, for example, a circular range having a predetermined radius. For example, when this radius is set to 20 m (meters), the second case determination unit 204 sets the radius of a circular range including all of the plurality of information acquisition positions indicated by the plurality of post information supplied from the first case determination unit 203. When the calculated radius is smaller than the determined radius, it is determined that the plurality of cases are the same case.

  When the information acquisition position is indicated by a place having a spread such as “a pedestrian crossing in front of α station” instead of the latitude and longitude, the second case determination unit 204 calculates the radius of the circular range including the entire place. The radius of a circular range including the center of the place may be calculated. The size of the circular range may be smaller or larger than the above example (radius 20 m). Further, instead of a circular range, a square range, a rectangular range, or an elliptical range may be used. The larger the predetermined range, the easier it is to determine that the case is the same even if there is a deviation in the information acquisition position.

  In the determination by the first case determination unit 203, for example, when a suspicious object that looks similar to a different place is witnessed or a suspicious person who looks similar to a different place appears accidentally, they are the same. May be judged as a case. In that case, even if a second case determination unit 204 determines whether or not it is the same case from the relationship between the respective information acquisition positions, even if a case that may be the same by chance occurs at a distant place , They can be determined not to be the same case. As a result, compared to the case where the information acquisition position is not taken into account, it is possible to accurately distinguish whether or not a plurality of pieces of post information are the same case (whether or not each case indicated by a plurality of pieces of post information is the same case). Can be.

  The second case determination unit 204 supplies a plurality of pieces of post information each indicating a plurality of cases determined to be the same case to the notification information generation unit 205. The notification information generation unit 205 generates notification information that reports the occurrence of a plurality of cases that are determined to be the same case by the second case determination unit 204.

  FIG. 5 shows an example of the generated notification information. In the example of FIG. 5, the notification information generation unit 205 generates notification information H10 including type summary information H11, an information acquisition position image H12, and a list of images H13. The notification information generation unit 205 creates a case of “type: suspicious object” and “remark: red suspicious bag” input as remark information based on the type information regarding the plurality of cases indicated by the supplied plurality of post information. Summary information H11 is generated. For example, the notification information generation unit 205 extracts character strings common to a plurality of case types and remarks, and generates case summary information H11. Alternatively, the notification information generation unit 205 may generate notification information when a plurality of cases determined to be the same case are equal to or greater than a predetermined value.

  Further, the notification information generation unit 205 includes a map M1 including a plurality of information acquisition positions indicated by the supplied plurality of post information, and markers C1, C2, C3, C4 indicating the information acquisition positions on the map M1. The information acquisition position image H12 including is generated. In FIG. 5, a predetermined range D1 used for determination by the second case determination unit 204 is shown. Each marker is included in the predetermined range D1 and represents that the information acquisition position of the case determined as the same case by the second case determination unit 204. The predetermined range D1 may or may not be included in the notification information. In addition, the notification information generation unit 205 generates a list H13 in which images indicated by a plurality of supplied post information are arranged.

  Note that the notification information generation unit 205 may generate notification information for a case that is not determined to be the same as any other case. In that case, the notification information generation unit 205 is supplied with a case determined from the first case determination unit 203 that there is no possibility of the same case as any other case, and the second case determination unit 204 also receives another case. Cases that are determined not to be the same as any case are supplied. The notification information generation unit 205 generates notification information for those cases.

  The notification information generation unit 205 gives the generated notification information a terminal ID included in the posted information that posted the case indicated by the notification information (so that the posting source mobile terminal 10 can be recognized later). Further, the notification information generation unit 205 issues a case ID for identifying each case (one case ID for collectively identifying cases determined to be the same case by the second case determination unit 204). The notification information is output to the notification information output unit 206 together with the notification information assigned with the terminal ID.

  The notification information output unit 206 is a function for outputting the notification information generated by the notification information generation unit 205. In this embodiment, the notification information output unit 206 outputs the notification information to the operator terminal 30 together with the corresponding case ID. The notification information display unit 301 of the operator terminal 30 receives the notification information and the case ID output from the monitoring center server device 20, and displays the notification information on the display unit of the own device.

  The notification information display unit 301 displays, together with the notification information, a screen for receiving an operation (case related operation) performed by the operator regarding the case transmitted by the notification information. The case-related operation receiving unit 302 receives a case-related operation performed by the operator on this screen. The case-related operations include an operation for selecting a monitor corresponding to the occurred case, an operation indicating that the monitor has started the response, and an operation indicating that the response has been completed. The case-related operation reception unit 302 receives the case ID corresponding to the notification information displayed from the notification information display unit 301 and notifies the monitoring center server device 20 together with the received operation content.

  The response status storage unit 207 associates the response status with respect to the case (the case where the post information acquired by the post information acquisition unit 201 indicates the type) communicated by the notification information, with the notification information indicating the case and the case ID. Remember. The response status storage unit 207 is an example of the “situation storage unit” in the present invention. The correspondence status storage unit 207 is supplied with the notification information and the case ID from the above-described notification information output unit 206 and is notified of the operation content and the case ID from the operator terminal 30. The response status storage unit 207 stores the supplied notification information and case ID and the response status indicated by the operation content notified together with the case ID in association with each other.

  FIG. 6 shows an example of the stored correspondence status. In the example of FIG. 6, the response status storage unit 207 includes the case ID of the witnessed case, the notification information indicating the type of the case, the start time of the response to the case, and the end time of the response (not ended) In this case, the information “corresponding” is stored in association with each other.

  The response status display unit 107 of the mobile terminal 10 displays the response status of the case where the posted information posted from the own terminal indicates the type. The response status display unit 107 transmits request data indicating the terminal ID of the own terminal and the response status request to the monitoring center server device 20. When receiving the request data, the response status notifying unit 208 of the monitoring center server device 20 corresponds to the response status (response start time and response end time) associated with the notification information to which the terminal ID indicated by the request data is assigned. The information is read from the status storage unit 207 and notified to the requesting mobile terminal 10. The response status notification unit 208 is an example of the “notification unit” in the present invention. The response status display unit 107 displays the response status notified from the monitoring center server device 20 in this way.

  FIG. 7 shows an example of the displayed response status. In the example of FIG. 7, the response status display unit 107 displays the character string “The status of the submitted event is as follows”, the response start time, and the response end time on the event posting site. . Note that the response status display unit 107 may request notification information of a corresponding event in addition to the response status. In this case, the response status notifying unit 208 reads out notification information together with the response status and gives notification, and the response status display unit 107 displays the notified notification information.

In this way, by communicating (feeding back) the response status and notification information of a case posted by the user, the user's awareness of the party can be improved compared to the case where the information is not transmitted. Increase the motivation for posting.
Each device included in the monitoring system 1 performs a determination process for determining the same case and a feedback process to the user regarding the response status to the case that the user has witnessed based on the above configuration.

  FIG. 8 shows an example of the operation procedure of each device in the determination process. In FIG. 8, two of the plurality of mobile terminals 10 and the monitoring center server device 20 are shown. This operation procedure is started, for example, when the user of the mobile terminal 10 performs an operation of posting a case that he / she has witnessed. First, the portable terminal 10 (post information generation unit 105) generates post information based on a user operation (steps S11 and S21). Next, the portable terminal 10 (post information transmission unit 106) transmits the generated post information to the monitoring center server device 20 (steps S12 and S22).

  The monitoring center server device 20 (post information acquisition unit 201) acquires the post information that has been transmitted, that is, post information that the user has posted regarding the case that the user has witnessed (step S31). Next, when the posted information includes an image of a case photographed by the user, the monitoring center server device 20 (photographing target recognition unit 202) recognizes the photographing target shown in the image (step S32). .

  Subsequently, the monitoring center server device 20 (first case determination unit 203) determines whether there is a possibility that the plurality of cases are the same case based on the plurality of pieces of acquired posting information ( Step S33). Then, the monitoring center server device 20 (second case determination unit 204), for a plurality of cases determined to have the same case, a plurality of cases from the relationship between the information acquisition positions of the plurality of cases. Are the same case (step S34).

  FIG. 9 shows an example of the operation procedure of each device in the feedback process. This operation procedure is performed following the determination process shown in FIG. First, the monitoring center server device 20 (notification information generation unit 205) generates notification information that reports the occurrence of a plurality of cases that are determined to be the same case in the determination process (step S41). Next, the monitoring center server device 20 (notification information output unit 206) outputs the generated notification information to the operator terminal 30 (step S42).

  The operator terminal 30 (notification information display unit 301) displays the output notification information (step S43). Next, the operator terminal 30 (case related operation reception unit 302) receives an operation performed by the operator as a case related operation with respect to the case conveyed by the notification information (step S51), and the received operation content is received by the monitoring center server device 20. Notification is made (step S52). The monitoring center server device 20 (response status storage unit 207) stores the response status for the case conveyed by the output notification information (step S53).

  The portable terminal 10 (response status display unit 107) requests the monitoring center server device 20 for the response status of the case where the posted information posted from the terminal itself indicates the type (step S61). Upon receiving this request, the monitoring center server device 20 (response status notifying unit 208) notifies the requesting mobile terminal 10 of the requested response status (response start time and response end time) (step S62). The portable terminal 10 (response status display unit 107) displays the notified response status (step S63).

[2] Modifications The above-described embodiments are merely examples of the present invention, and may be modified as follows. Moreover, you may implement an Example and each modification in combination as needed.

[2-1] Predetermined Range In the embodiment, the second case determination unit 204 uses a range having a predetermined shape and size as the predetermined range. However, the present invention is not limited to this. For example, the second case determination unit 204 may use a predetermined route including the information acquisition position as a predetermined range.

  FIG. 10 shows an example of a predetermined route. In the example of FIG. 10, a predetermined route E11 including a pedestrian crossing in front of α station is represented as a predetermined range D11. The predetermined route E11 is a route often used when a pedestrian crosses the pedestrian crossing and goes to the α station. When a suspicious person crosses the pedestrian crossing and goes to the α station, a general person on the route E11 is suspicious. Easy to notice. Therefore, the second case determination unit 204 performs determination using this route E11 as the predetermined range D11.

  As the predetermined range, a route used by more people than the surrounding route may be determined as in the route E11, for example, when traffic rules and traffic circumstances are taken into consideration. According to this modification, it is possible to prevent the same case that occurs in a predetermined route from being determined as separate cases.

[2-2] Considering the Time of Occurrence The second case determination unit 204 may make a determination in consideration of the time at which the case occurred. In this modification, the posting information acquisition unit 201 of the monitoring center server device 20 acquires posting information including information indicating the occurrence time of the case witnessed by the user. For example, when the posted information includes an image of the incident, the posting time indicated by the metadata included in the image can be regarded as the occurrence time. Get that metadata.

  In addition, even if the post information does not include an image of the case, the post information acquisition unit can generate the generation time of text data representing the type information of the case indicated by the post information. 201 acquires this text data as information indicating the occurrence time. Based on the information indicating the time of occurrence acquired in this way, the second case determination unit 204 determines a plurality of cases determined by the first case determination unit 203 as having the possibility of the same case. When the occurrence time at each information acquisition position is not included in the predetermined period, it is determined that the plurality of cases are not the same case.

  As the predetermined period, for example, an average time from when a case occurs to when the case is dealt with and ended is used. When the response to the case is completed, the case is no longer witnessed, so it is highly likely that cases witnessed after the period have not been the same case. Therefore, by making the second case determination unit 204 determine as described above, it is possible to reduce erroneous determination in which a plurality of cases that are not the same case are determined to be the same case as compared with the case where the determination is made without considering the occurrence time. Can do.

[2-3] Considering Shooting Range When the posted information includes an image of shooting a case, the second case determination unit 204 may make a determination in consideration of the shooting range of the image. The image captured by the imaging device 18 of the mobile terminal 10 includes the above-described metadata, and the metadata indicates azimuth information indicating the imaging direction.

  The shooting range of the shooting unit varies depending on the angle of view, the focal length, and the like, but when they are fixed, it is determined by the shooting direction. Therefore, the azimuth information is information indicating the shooting direction, that is, the shooting range of an image shot from the information acquisition position. That is, the posting information generation unit 105 of the mobile terminal 10 generates posting information including orientation information when the imaging unit (imaging device 18) of the terminal itself captures an image from the information acquisition position.

  The posting information acquisition unit 201 of the monitoring center server device 20 acquires the posting information generated by the posting information generation unit 105, that is, the posting information including the orientation information when an image is taken from the information acquisition position. The second case determination unit 204 determines whether or not the plurality of cases are the same case based on the information acquisition position and orientation information included in the plurality of pieces of post information thus acquired. The second case determination unit 204, for example, for a plurality of cases determined by the first case determination unit 203 as having the possibility of the same case, the shooting ranges from the information acquisition positions of the plurality of cases overlap. It is determined that these cases are the same case.

  FIG. 11 shows an example of overlapping of shooting ranges. In FIG. 11A, the shooting directions F1 and F2 of the two mobile terminals 10 intersect at an intersection point G1 when viewed from vertically above. On the other hand, in FIG. 11B, when the shooting directions F1 and F2 of the two mobile terminals 10 are viewed from vertically above, both shooting directions are merely separated and do not intersect. The second case determination unit 204 determines whether or not a plurality of shooting directions viewed from vertically above from the information acquisition position and shooting direction indicated by the posted information intersect. It is determined that the cases where the posting information indicates the type are the same case. In addition, when multiple people in almost the same position take pictures in the same direction with each mobile terminal, the shooting directions do not intersect. Therefore, a shooting area with a certain width in the shooting direction is set, and the shooting areas intersect. It may be determined whether or not there is a possibility of the same case.

  For example, fuming smoke and suspicious flying objects (such as drones) can be noticed even from a distance, and may be posted by a user at a remote location. In that case, since the information acquisition position will be in a wide range, it is difficult to make a determination using a predetermined range as in the embodiment (if the predetermined range is narrow, it cannot be determined as the same case, and if the predetermined range is widened) Cases that are not related are easily identified as the same case). Even if the information acquisition position is included in the predetermined range, when shooting in different directions as in the example of FIG. 11B, they are not likely to be the same case. . In this modification, the same case can be determined when it is difficult to determine within the predetermined range.

[2-4] Suspicious objects in the air Cases where suspicious objects such as drones, radio controlled airplanes, radio controlled helicopters and balloons exist in the air can be witnessed from a distance from suspicious objects on the ground. The second case determination unit 204 may perform the determination in consideration of that. In this modification, the posted information acquisition unit 201 acquires posted information including information indicating the height of the suspicious object that has been witnessed. For example, the shooting direction indicated by the metadata included in the image captured by the mobile terminal 10 indicates not only the azimuth but also the elevation angle and depression angle, so the posted information acquisition unit 201 includes the elevation angle information and depression angle information of the suspicious object. Get post information.

  FIG. 12 shows an example of the altitude of the suspicious object. In FIG. 12, when the shooting direction F1 (elevation angle θ1) of the mobile terminal 10-1 and the shooting direction F2 (elevation angle θ2) of the mobile terminal 10-2 that are separated by the distance L1 are viewed in the horizontal direction, the shooting directions are as follows. It intersects at an intersection G2 (position where a suspicious object exists) located in the air. The height y of the intersection point G2 is expressed by the following equation using the horizontal distance x between the mobile terminal 10-2 and the intersection point G2.

この式からｘは次式のように表される。

From this equation, x is expressed as follows.

  Since L1, θ1, and θ2 are indicated by the posted information acquired by the posted information acquisition unit 201, x and y can be calculated by calculating tan θ1 and tan θ2. Thus, the posted information indicating L1, θ1, and θ2 can be used as information indicating the altitude of the suspicious object. The second case determination unit 204 performs the determination by widening the predetermined range described in the embodiment as the suspicious object indicated by the post information acquired by the post information acquisition unit 201 has a higher altitude.

  For example, the second case determination unit 204 sets the predetermined range when the altitude of the suspicious object is less than 5 m as the reference range, and sets the range of the predetermined range when the altitude of the suspicious object is 5 m or more and less than 10 m If the height of the suspicious object is 10 m or more, the width of the predetermined range is set to three times the standard width. Alternatively, since it is assumed that it is difficult to actually obtain the altitude with high accuracy, the second case determination unit 204 determines that the predetermined range is wider than the reference when the elevation angle included in the posted information is greater than or equal to the predetermined value. The determination may be made by expanding the predetermined range as the elevation angle is larger.

  In addition to the above metadata, for example, when the user inputs the height of the suspicious object as the type information regarding the case or the information acquisition position information, the posted information acquisition unit 201 has witnessed the information. It may be acquired as information indicating the altitude. In any case, by changing the size of the specified range according to the altitude of the suspicious object, if the suspicious object existing in the air can be witnessed even from a distant place, it is witnessed at such a distant place. Can be judged as the same case.

[2-5] Consideration of obstacles Even if the information acquisition location of an incident is close, if there are obstacles such as a building in the meantime, it is not the case that you have witnessed the same incident, but that you have witnessed a separate incident by chance. It is done. In this way, determination in consideration of an obstacle may be performed.

  FIG. 13 shows a functional configuration realized by the monitoring center server device 20a of this modification. The monitoring center server device 20a includes an obstacle information storage unit 209 in addition to the units illustrated in FIG. The obstacle information storage unit 209 stores arrangement information indicating the arrangement of obstacles around the information acquisition position. The obstacle information storage unit 209 is an example of the “storage unit” in the present invention. The obstacle information storage unit 209 stores, for example, information indicating the arrangement of a building (an obstacle in this case) existing in the management area as arrangement information.

  The second case determination unit 204 refers to the arrangement information stored in the obstacle information storage unit 209 and determines whether there is an obstacle between the information acquisition position of the first case and the information acquisition position of the second case. Determine whether. When the second case determination unit 204 determines that there is an obstacle between the two cases, the second case determination unit 204 determines that the first case and the second case are not the same case. As a result, even if the information acquisition positions of the cases are close as described above, it is possible to prevent an erroneous determination that determines that the cases are the same when accidentally witnessing different cases.

  In addition, in the case where there is a suspicious person, the suspicious person moves and the case is likely to be witnessed in a plurality of different places. In that case, the second case determination unit 204 first refers to the arrangement information stored in the obstacle information storage unit 209, and acquires the first information acquisition position of the first case and the second information acquisition of the second case. It is determined whether an obstacle exists between the position and the position. Next, when the second case determination unit 204 determines that there is an obstacle between the two information acquisition positions, the second case determination unit 204 can move from the first information acquisition position to the second information acquisition position by a route that bypasses the obstacle. Calculate time.

  This movable time is calculated, for example, by dividing the distance of a route that bypasses an obstacle at a moving speed assumed when a suspicious person runs and moves (for example, 100 m is about 15 to 20 seconds). Then, if the time elapsed from the witness time of the first case to the witness time of the second case is shorter than the calculated movable time, the second case determination unit 204 acquires the first information in such a short time. Since it cannot move from the position to the second information acquisition position, it is determined that the first case and the second case are not the same case.

  This concept may be applied when there is no obstacle. In this case, the second case determination unit 204 may perform the determination as described above by calculating the movable time by the straight route from the first information acquisition position to the second information acquisition position. In any case, in the case where there is a suspicious person, it is possible to prevent erroneous determination in which a plurality of cases witnessed in a place where one suspicious person cannot move are determined to be the same case.

  The second case determination unit 204 may also consider an obstacle when performing determination using the above-described shooting range. In that case, the second case determination unit 204 refers to the arrangement information stored in the obstacle information storage unit 209, and for example, there is an obstacle between the mobile terminal 10 and the intersection G1 in FIG. Determine whether or not. If the second case determination unit 204 determines that there is an obstacle, the second case determination unit 204 determines that the shooting ranges do not overlap and determines that the plurality of cases are not the same case. Thereby, when a plurality of postings in which an intersection exists in the shooting direction by photographing different cases, it is possible to prevent an erroneous determination to erroneously determine those cases as the same case.

[2-6] Cases related to each other In each of the above examples, it is determined whether or not a plurality of cases are the same case, but the present invention is not limited to this. For example, it may be determined whether or not a plurality of cases are related to each other. Of course, the related incidents include the same incident, and other incidents include, for example, witnessing a snatcher who runs away and witnessing the victim falling and injured. .

  In addition, incidents that witnessed the scene of a fire in a riot, incidents that witnessed the arrival of a fire truck, and incidents that witnessed a fire extinguisher are also included in the related cases. As described above, the cases related to each other means a plurality of cases that occur due to the same event. In the present modification, the first case determination unit 203 determines whether or not the plurality of cases are related to each other based on the plurality of pieces of post information acquired by the post information acquisition unit 201 (whether or not they are related cases). ).

  Then, for the plurality of cases that the second case determination unit 204 has determined to be related to each other by the first case determination unit 203, the plurality of cases are related to each other from the relationship between the information acquisition positions of the plurality of cases. It is determined whether or not. According to this modification, when not only the same case but also multiple cases that occur due to the same event occur, it is possible to respond after understanding that these cases are related to each other. . Further, similarly to the embodiment, it is possible to accurately distinguish whether or not a plurality of pieces of posted information are related to each other as compared with the case where the information acquisition position is not considered.

[2-7] Position Measurement Method In the embodiment, the position of the image captured by the sensor device 17 of the mobile terminal is measured using the GPS technology, but the position measurement method is not limited to this. For example, A-GPS (Assisted GPS) or a technique for detecting a position using radio waves of a wireless LAN may be used. In short, any method may be used as long as the position of the image to be taken can be measured.

[2-8] Measuring Method of Shooting Direction In the embodiment, the shooting direction by the shooting unit is measured from the geomagnetism detected by the sensor device 17 of the mobile terminal, but the measuring method of the shooting direction is not limited to this. For example, a method of detecting an azimuth using a signal from a GPS satellite or an output of a gyro sensor may be used. In short, any method may be used as long as information indicating the photographing direction by the photographing unit can be obtained.

[2-9] Notification Information The notification information generated by the notification information generation unit 205 and output by the notification information output unit 206 is not limited to that described in the embodiment. For example, the notification information output unit 206 does not indicate the information acquisition positions of a plurality of cases determined to be the same case by the second case determination unit 204 on the map, but uses information indicated by a character string as notification information. It may be output. Further, the notification information output unit 206 may output information indicating the content to be notified by voice as notification information.

  In that case, the operator terminal 30 outputs the notification information by voice from the speaker. Further, the notification information output unit 206 may output information indicating a plurality of pieces of post information used for determination of the same case as notification information. In this case, the operator can grasp the type information of a plurality of cases determined as the same case. In any case, the notification information output unit 206 informs the operator of the type information of the case indicated by the acquired post information (including the case determined to be the same or the case where the case was not determined) and the information acquisition position of the case. Information that can be conveyed may be output as broadcast information.

[2-10] Output destination of notification information The output destination of the notification information by the notification information output unit 206 is not limited to the operator terminal. For example, the supervisor terminal 40 may be an output destination of the notification information. In that case, the monitor terminal 40 displays the notification information, and the monitor notices the occurrence of the case by this display. Further, when the monitoring center server device includes an output device having a display or the like, the output device may be the output destination.

  Further, instead of the operator, the e-mail address of the person in charge of monitoring or the terminal used by this person may be used as the output destination. In any case, if the person concerned in monitoring, such as an operator, a supervisor, or a person in charge of monitoring, is aware of the occurrence of the incident and can respond quickly to the incident, where is the output destination of the notification information? Also good.

[2-11] Apparatus for Realizing Each Function The apparatus for realizing the functions shown in FIG. For example, the monitoring center server device may include an input device and an output device, and each unit included in the operator terminal 30 may be realized. On the contrary, the operator terminal 30 may realize each unit included in the monitoring center server device 20. Further, the monitor terminal 40 may realize the functions realized by the mobile terminal 10. In that case, the watcher also posts information about the case he / she witnessed.

  Further, a function realized by the monitoring center server device may be realized by sharing a plurality of information processing devices. For example, the first device realizes the function from the posted information acquisition unit 201 to the first case determination unit 203, and the second device realizes the function from the second case determination unit 204 to the response status storage unit 207. is there. In any case, the above-described functions may be realized by the entire apparatus included in the monitoring system.

[2-12] Automation of instruction In the embodiment, an operator who uses the operator terminal 30 gives an instruction to the monitoring staff. However, in the future, an operator's work including this instruction may be automated. For example, by utilizing AI (Artificial Intelligence), a monitor closest to the information acquisition position of the case indicated by the posted information from the mobile terminal 10 is selected, and information necessary for the selected monitor (case of the case) (Information indicating the location of occurrence). In this way, work that can be realized by processing based on certain rules may be automated.

[2-13] Category of the Invention The present invention can be understood as a monitoring system including these devices, in addition to the devices such as the mobile terminal 10, the monitoring center server device 20, the operator terminal 30, and the monitor terminal 40. The present invention can also be understood as an information processing method for realizing processing performed by each device. It can also be understood as a program for causing a computer that controls each device to function. This program may be provided in the form of a recording medium such as an optical disk in which it is stored, or may be provided in the form of being downloaded to a computer via a network such as the Internet, installed and made available for use. May be.

DESCRIPTION OF SYMBOLS 1 ... Monitoring system, 10 ... Portable terminal, 20 ... Monitoring center server apparatus, 30 ... Operator terminal, 40 ... Monitor terminal, 101 ... Input screen display part, 102 ... Input operation reception part, 103 ... Position information acquisition part, 104 ... Image storage unit, 105 ... Post information generation unit, 106 ... Post information transmission unit, 107 ... Correspondence status display unit, 201 ... Post information acquisition unit, 202 ... Shooting target recognition unit, 203 ... First case determination unit, 204 ... 2nd case determination unit, 205 ... notification information generation unit, 206 ... notification information output unit, 207 ... response status storage unit, 208 ... response status notification unit, 209 ... obstacle information storage unit, 301 ... notification information display unit, 302 ... Incident-related operation reception department.

Claims (7)

Posting information acquisition unit for acquiring post information from a plurality of communication terminals, including the type information related to the case witnessed by each user and the information acquisition position from which the type information was acquired;
A monitoring support apparatus comprising: a determination unit that determines whether or not cases witnessed by a plurality of users are related to each other based on the type information and the information acquisition position included in the acquired plurality of pieces of posted information. The monitoring support device according to claim 1, wherein the determination unit determines that the plurality of cases are related to each other when each of the information acquisition positions included in the plurality of posted information is included in a predetermined range. The posted information includes image data captured by the communication terminal, and orientation information when the image data is captured,
The monitoring support device according to claim 2, wherein the determination unit determines whether or not the plurality of cases are related to each other based on the information acquisition position and the direction information included in the plurality of posted information. The posting information includes elevation angle information in azimuth information when the image data is taken,
The monitoring support device according to claim 3, wherein the determination unit performs the determination by widening the predetermined range as the elevation angle included in the acquired posting information increases. The posted information includes information indicating the occurrence time of the case,
5. The determination unit according to claim 1, wherein the determination unit determines that the plurality of cases are not related to each other when an occurrence time included in the plurality of pieces of posted information is not included in a predetermined period. Monitoring support device. When a user witnesses a case that occurred in the surroundings, a type information acquisition unit that acquires type information related to the case,
A position acquisition unit that acquires an information acquisition position from which the type information has been acquired;
A generating unit that generates post information including type information related to the acquired case and the information acquisition position;
Based on the type information included in a plurality of the posted information and the information acquisition position, the monitoring support device includes a determination unit that determines whether or not cases witnessed by a plurality of users are related to each other. A mobile terminal comprising: a transmission unit that transmits the posted information. Posting information acquisition unit for acquiring post information from a plurality of communication terminals, including the type information related to the case witnessed by each user and the information acquisition position from which the type information was acquired;
A monitoring support device comprising: a determination unit that determines whether or not incidents witnessed by a plurality of users are related to each other based on the type information and the information acquisition position included in the plurality of pieces of posted information acquired; ,
When a user witnesses a case that occurred in the surroundings, a type information acquisition unit that acquires type information related to the case, a position acquisition unit that acquires an information acquisition position from which the type information was acquired, and the acquired case A generation unit that generates post information including type information related to a plan and the information acquisition position, and cases witnessed by a plurality of users based on the type information and the information acquisition position included in the plurality of post information are mutually A monitoring system comprising: a portable terminal provided with a transmission unit that transmits the generated post information to a monitoring support device that includes a determination unit that determines whether or not they are related.

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