JP6570275B2 - Security system and security method - Google Patents

Description

  The present invention relates to a security system and a security method capable of efficiently detecting the occurrence of an unexpected situation and promptly responding to the unexpected situation.

  Traditionally, when large-scale events such as shrines and temples, first concerts, outdoor concerts, and expositions are held, it is expected that visitors will be crowded inside and around the venue and be prepared for unforeseen circumstances Therefore, security is often provided by a security company.

  For this reason, the prior art in which a security company arranges security guards at predetermined locations in and around the venue according to a security plan is known. For example, in Patent Document 1, a security company prepares a security plan for an event, arranges security guards, and causes each security guard to have a mobile phone that can access a host computer server. An event security system is disclosed in which the company can grasp the number of people getting off by event venue in real time.

  By using this Patent Document 1, the security company and the security guard can grasp the trend of visitors to the event venue, and if an unexpected situation occurs in and around the venue, an unexpected situation has occurred. It is possible to dispatch security guards to points that require security (hereinafter simply referred to as “security points”).

JP 2002-297757 A

  However, since the thing of the said patent document 1 performs the situation prediction concerning security using indirect information which does not directly relate to unforeseen circumstances, such as "data on the number of persons getting off by event venue", it is actually unexpected. There is a problem that a security guard cannot be dispatched to a security spot unless the mobile phone is notified separately of the fact that the above situation has occurred.

  Further, when dispatching a security guard to a security spot, it also becomes a problem as to which route the security guard located at which location is sent to the security spot. In general, it is desirable to have the security guard located at the closest location to the security spot to the security spot by the shortest route, but depending on the traffic situation in or around the event venue, the security guard located elsewhere This is because it may be possible to shorten the arrival time by sending a member to the security point via the detour route.

  For these reasons, it is extremely important how to detect the occurrence of unforeseen circumstances and how to respond immediately in case of unforeseen circumstances when guarding in and around the event venue. It has become a challenge.

  The present invention was made to solve the above-described problems of the prior art, and efficiently detects the occurrence of an unexpected situation when performing security in and around the event venue, An object of the present invention is to provide a security system and a security method capable of quickly responding to a situation.

In order to solve the above-described problems and achieve the object, the invention according to claim 1 is a security system for guarding an event venue where a plurality of visitors having portable terminals visit, Or based on the passage time acquisition means for acquiring the passage time for the plurality of visitors to pass on each route around the event venue, and the passage time on each route for each visitor acquired by the passage time acquisition means A detection means for detecting the occurrence of an unexpected situation, and an alarm output means for outputting an alarm when the occurrence of the unexpected situation is detected by the detection means, wherein the detection means is the transit time acquisition means. It is characterized in that the occurrence of the unexpected situation is detected by generating a distribution of transit times acquired by the above and evaluating the shape of the distribution .

  Further, the invention according to claim 2 is the invention according to claim 1, wherein the passing time acquisition means is a portable terminal possessed by a guard arranged at the starting point of each route and a portable possessed by each visitor. Short distance between the first time when short-distance wireless communication was possible with the terminal and the portable terminal possessed by the security guard placed at the end of each route and the portable terminal possessed by each visitor Based on the second time when wireless communication is enabled, the plurality of visitors acquire passing times on each route.

Further, the invention according to claim 3 is the invention according to claim 1 or 2 , wherein the detecting means is configured to detect the unexpectedness when a value of a transit time for forming a peak in the distribution is a predetermined number or more. It is characterized by detecting that a situation has occurred.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the detection means detects the occurrence of the unexpected situation based on a temporal change in the shape of the distribution. To do.

The invention according to claim 5 is the invention according to any one of claims 1 to 4 , further comprising event schedule management means for managing a schedule of an event to be performed at the event venue, wherein the detection is performed. The means is characterized in that the shape of the distribution is evaluated while referring to an event schedule managed by the event schedule management means.

The invention according to claim 6 is the guard according to any one of claims 1 to 5 , wherein the guard changes the arrangement of the guard based on the passage time acquired by the passage time acquisition means. An arrangement changing means is further provided.

Further, the invention according to claim 7 is a security method for guarding an event venue where a plurality of visitors having portable terminals visit, wherein the plurality of routes are provided on each route in or around the event venue. A transit time acquiring step for acquiring a passing time through which a visitor passes, and a detecting step for detecting the occurrence of an unexpected situation based on the passing time on each route of each visitor acquired by the passing time acquiring step If, when the occurrence of unexpected events by said detecting step is detected, see contains an alarm output step of outputting an alarm, the detection step has been the transit time distribution obtained by the passage time acquisition step generates The occurrence of the unexpected situation is detected by evaluating the shape of the distribution .

  According to the present invention, the passage time for a plurality of visitors to pass through each route in or around the event venue is acquired, and based on the obtained passage time on each route for each visitor, an unexpected Since it is configured to output an alarm when the occurrence of an unexpected situation is detected by the detection means, an unexpected situation may occur when guarding is performed in and around the event venue. Can be detected efficiently, and an unexpected situation can be promptly dealt with.

FIG. 1 is an explanatory diagram of an outline of security according to the first embodiment. FIG. 2 is a diagram illustrating a system configuration of the security system. FIG. 3 is a configuration diagram showing an internal configuration of the management apparatus shown in FIG. FIG. 4 is an explanatory diagram of data stored in the storage unit of the management apparatus. FIG. 5 is an explanatory diagram of a plurality of routes. FIG. 6 is a flowchart showing the processing operation of the security guard terminal. FIG. 7 is a flowchart showing the processing operation of the management apparatus. FIG. 8 is an explanatory diagram of abnormality detection according to the second embodiment. FIG. 9 is a configuration diagram illustrating an internal configuration of the management apparatus according to the second embodiment.

  Exemplary embodiments of a security system and a security method according to the present invention will be described below in detail with reference to the accompanying drawings. In Example 1 described below, a security system that acquires the moving speed of an event attendee and detects an unexpected situation from the moving speed will be described. In the second embodiment, an improvement in detection accuracy using an event schedule and a use example of detection results will be described.

  FIG. 1 is an explanatory diagram of an outline of security according to the first embodiment. First, in the security according to the present embodiment, the speed of a pedestrian who is a visitor is calculated. Specifically, as shown in FIG. 1 (a), by acquiring the time when the same pedestrian is located near the start point Po of the route and the time when the same pedestrian is located near the end point Pd of the route, The time (passing time) required for the person to move and pass through this route is calculated as the moving time. Although the speed value may be obtained by dividing the length of the route by this travel time, in this embodiment, the description will be made with a configuration in which the travel time is used as it is.

  If the travel time is calculated for a plurality of pedestrians, a travel time distribution is generated as shown in FIG. In the travel time distribution shown in FIG. 1B, the horizontal axis is the travel time, and the vertical axis is the frequency corresponding to the number of pedestrians. From this travel time distribution, the average, variance, median, mode, etc. of pedestrian travel times can be determined. In FIG.1 (b), the mode value of the pedestrian's movement time is M (t1).

  Here, the travel time varies according to the route situation. For example, if the number of pedestrians increases and the route becomes congested, the pedestrian travel time becomes longer. Such a change in travel time according to the situation also affects the travel time distribution.

  FIG. 1 (c) shows the distribution generated at time t2 after the movement time distribution shown in FIG. 1 (b) is generated at time t1 and the movement times of a plurality of pedestrians are further calculated. The shape of the travel time distribution shown in FIG. 1C is changed from the shape of the travel time distribution shown in FIG. 1B, and the mode value of the travel time is M (t2).

  In this way, fluctuations in travel time caused by route conditions appear as changes in the shape of the travel time distribution, but if the change in route conditions is within the normal range, the transition of the travel time distribution is slow. is there.

  However, when an unexpected situation occurs on the route, the change in the travel time distribution becomes abrupt. For example, if a suspicious person appears on the route and pedestrian traffic is significantly obstructed, the mode value of the travel time distribution greatly increases in a short time.

  FIG. 1D shows the transition of the travel time distribution when an unexpected situation occurs on the route. The mode M (t2a) of the travel time distribution in FIG. 1 (d) is much larger than the mode M (t1) shown in FIG. 1 (b).

  In this way, since the transition of the travel time distribution becomes sharper than normal at the occurrence of an unforeseen situation, the change of the mode value of the travel time distribution is monitored, and the change of the mode value of the travel time distribution is monitored. When the amount exceeds the threshold, it is possible to detect that an unexpected situation has occurred.

  Further, even when there are a plurality of peaks whose frequency values exceed a predetermined value, it is possible to detect that an unexpected situation has occurred. For example, when a suspicious person appears as described above, the pedestrian closer to the starting point Po than the suspicious person is blocked from passing and travels longer, whereas the pedestrian closer to the end point Pd than the suspicious person Moves away from the suspicious person and promptly passes the route to shorten the travel time. As a result, the pedestrian closer to the start point Po and the pedestrian closer to the end point Pd than the suspicious person form different travel time peaks.

  In the travel time distribution shown in FIG. 1 (e), the travel time M (t2b) is two travel times at which the frequency value has a peak and is smaller than the mode M (t1) in FIG. 1 (b). FIG. 3B shows a state in which a moving time M (t2b ′) that is larger than the mode M (t1) in FIG. 1B appears.

  As described above, in the security according to the first embodiment, the travel time distribution is generated by calculating the travel time of a plurality of pedestrians passing through the route, and an unexpected situation can be detected by the shape or change of the travel time distribution. it can. If an unexpected situation is detected, an alarm is issued to notify the security guard of the occurrence of the unexpected situation, and the situation can be collected.

  Next, the system configuration of the security system according to the present embodiment will be described. FIG. 2 is a diagram illustrating a system configuration of the security system. As shown in FIG. 2, guards are arranged at the start point Po and the end point Pd of the route, respectively, and the portable terminal is carried by the guard. A portable terminal carried by a guard placed at the start point Po is the guard terminal Tg1, and a portable terminal carried by a guard placed at the end point Pd is the guard terminal Tg2.

  When a pedestrian in the vicinity of the starting point Po carries the mobile terminal Tu1, and the mobile terminal Tu1 has a wireless LAN router function, for example, when the tethering function of the mobile phone terminal is on, the mobile terminal Tu1 An SSID (Service Set Identifier) that is an identification name of the access point is transmitted to the surroundings.

  For this reason, when the mobile terminal Tu1 exists at a distance that allows communication with the security guard terminal Tg1, the security guard terminal Tg1 can receive the SSID of the mobile terminal Tu1. The security guard terminal Tg1 transmits the received SSID to the management apparatus 10 in association with the reception time.

Similarly, when a pedestrian near the end point Pd carries the mobile terminal Tu2, and the mobile terminal Tu2 has a wireless LAN router function, the mobile terminal Tu2 transmits the SSID of its own access point to the surroundings. When the guard terminal Tg2 receives the SSID of the portable terminal Tu2, the guard terminal Tg2 transmits the received SSID to the management apparatus 10 in association with the reception time.

  The process of receiving the SSID, associating it with the time, and transmitting it to the management apparatus 10 can be realized by an application program that operates on the guard terminals Tg1, Tg2, for example.

  The management device 10 manages the time associated with the SSID received from the guard terminal Tg1 as the passage time of the start point Po, and manages the time associated with the SSID received from the guard terminal Tg2 as the passage time of the end point Pd. . And if the passage time of the start point and the end point is obtained for the same SSID, the difference is calculated as the movement time.

  The management device 10 calculates and accumulates the travel time in this way, and generates a travel time distribution from the accumulated travel time. The generation of the travel time distribution may be performed periodically at predetermined intervals.

  The management device 10 detects an unexpected situation based on the shape and change of the generated travel time distribution. If an unexpected situation is detected, an alarm is issued to notify the security guard of the occurrence of the unexpected situation, and the situation is collected. For example, by dispatching a guard who is waiting at a guard station to a path where an abnormality has occurred, the contents of the abnormality that has occurred can be confirmed and a countermeasure can be taken.

  Next, the internal configuration of the management apparatus 10 shown in FIG. 2 will be described. FIG. 3 is a configuration diagram showing an internal configuration of the management apparatus 10 shown in FIG. As illustrated in FIG. 3, the management device 10 is connected to the display unit 11 and the input unit 12, and includes a communication unit 13, a storage unit 14, and a control unit 15.

  The display unit 11 is a liquid crystal panel, a display device, or the like. The input unit 12 is a keyboard, a mouse, or the like. The communication unit 13 is an interface unit for data communication with the security guard terminals Tg1, Tg2, etc. via a communication line.

  The storage unit 14 is a storage device such as a hard disk device or a nonvolatile memory, and stores guard data 14a, travel time data 14b, and distribution data 14c. The security guard data 14a is data for managing the security guard, and associates the security guard identification information, the security guard terminal identification information carried by the security guard, the current position of the security guard, the current situation, and the like. Yes. The travel time data 14b is data indicating the travel time of the pedestrian, and associates the SSID acquired from the mobile terminal of the pedestrian, the passage time of the start point Po, the passage time of the end point Pd, and the travel time. The distribution data 14c is data about the distribution generated from the travel time data 14b.

  The control unit 15 is a control unit that controls the management apparatus 10 as a whole, and includes a guard state management unit 15a, a travel time calculation unit 15b, a distribution generation unit 15c, an abnormality detection unit 15d, and an alarm processing unit 15e. In practice, programs corresponding to these functional units are stored in a ROM or a non-volatile memory (not shown), and these programs are loaded into a CPU (Central Processing Unit) and executed, whereby the security state management unit 15a. The travel time calculation unit 15b, the distribution generation unit 15c, the abnormality detection unit 15d, and the alarm processing unit 15e are caused to execute corresponding processes.

  The security state management unit 15a is a processing unit that sets a security target area and route, arranges security guards, manages the status of each security guard, and manages the security target area and the security status. The guard state management unit 15a updates the guard data 14a when the state of the guard changes.

  The travel time calculation unit 15b is a processing unit that updates the travel time data 14b with the SSID and time received from the guard terminal and calculates the travel time. Specifically, when the travel time calculation unit 15b receives the SSID and time from the guard terminal Tg1, the travel time calculation unit 15b sets the received time as the passage time of the start point Po of the SSID. Moreover, if the travel time calculation unit 15b receives the SSID and the time from the guard terminal Tg2, the travel time calculation unit 15b sets the received time as the passage time of the end point Pd of the SSID. And the movement time calculation part 15b calculates the difference of passage time about SSID from which the passage time of the start point and the end point was obtained, and makes it the movement time of this SSID.

  The distribution generation unit 15c is a processing unit that generates a travel time distribution from the travel time calculated by the travel time calculation unit 15b and accumulated in the travel time data 14b. The distribution generation unit 15c calculates various parameters such as a mode value for the generated travel time distribution, and stores them in the distribution data 14c.

  The abnormality detection unit 15d is a processing unit that detects an abnormality based on the travel time distribution generated by the distribution generation unit 15c and stored in the distribution data 14c. The abnormality detection unit 15d detects an abnormality from the shape and change of the travel time distribution.

  As an example, the abnormality detection unit 15d determines that an abnormality has occurred when there are a plurality of peaks in which the frequency value exceeds a predetermined value in the travel time distribution. Depending on the type of event, there may be a plurality of peaks at normal times. For example, if there is an entrance to the event venue on the route and the pedestrian chooses whether or not to enter the event venue, the travel time of the pedestrian who entered the event venue and the pedestrian who did not enter the event venue Travel time is very different. As a result, in the travel time distribution, there are two peaks, a peak corresponding to a pedestrian who has entered the event venue and a peak corresponding to a pedestrian who has not entered the event venue. Thus, when two peaks appear in a normal state, it is detected that an abnormality has occurred when three or more peaks appear in the travel time distribution.

  In addition, the abnormality detection unit 15d monitors the change in the mode value of the travel time distribution, and detects that an abnormality has occurred when the amount of change in the mode value of the travel time distribution exceeds a threshold value. Although the case where the change in the mode value is monitored is shown here, it is also possible to detect an abnormality by monitoring the change in other parameters such as the average value, the variance, and the median value.

  The alarm processing unit 15e is a processing unit that issues an alarm when an abnormality is detected by the abnormality detection unit 15d. As this alarm, display output to the display unit 11 or sound output from a predetermined speaker can be used. Further, the alarm destination may be an operator of the management apparatus 10 or may be performed on a terminal provided at another place such as a guard station. When the alarm processing unit 15e performs the alarm process, it is possible to notify the security guard of the occurrence of an unexpected situation and to collect the situation.

  Next, data stored in the storage unit 14 of the management apparatus 10 will be described. FIG. 4 is an explanatory diagram of data stored in the storage unit 14 of the management apparatus 10. The guard data 14a shown in FIG. 4A corresponds to the guard ID, which is the identification information of the guard, with the terminal ID, the arrangement location, the state, etc., which is the identification information of the guard terminal carried by the guard. Attached. The arrangement location includes the start point Po and the end point Pd, and indicates the current position of the guard. The state indicates the current state of the guard, such as being guarded, moving, waiting, and troubleshooting.

  When the SSID and time are received from the security guard terminal, the current location and state are specified by referring to the security guard data 14a based on the terminal ID of the sender security guard terminal. Is possible.

  In FIG. 4A, it is shown that the guard with the guard ID “G0001” carries the guard terminal with the terminal ID “Tg0001” and is guarding at the arrangement place “P1”.

  The movement time data 14b shown in FIG. 4B is data in which the SSID, the passage time of the start point Po, the passage time of the end point Pd, and the movement time are associated with each other. In FIG. 4B, the mobile terminal whose SSID is “user00x” passes the start point Po at 10: 5: 40, passes the end point Pd at 10:12:10, and the travel time is 390 seconds. It has been shown.

  The distribution data 14c shown in FIG. 4C is data in which the distribution ID, generation time, average value, variance value, mode value, and the like are associated with each other. The distribution ID is identification information for identifying the travel time distribution, and the generation time is the time when the travel time distribution is generated. The average value, variance value, mode value, and the like are parameters indicating the characteristics of the travel time distribution. In FIG. 4C, the travel time distribution of the distribution ID “C0001” is generated at 10:15:00, the average travel time is 411 seconds, the variance is 120 seconds, and the mode value is 408 seconds. It is shown.

  When there are a plurality of routes, data defining the route is provided, and travel time data 14b and distribution data 14c are provided for each route. FIG. 5 is an explanatory diagram of a plurality of routes.

  In FIG. 5A, points P1 to P7 exist, and a route is established between the points. Specifically, there is a path for each combination of P1 and P2, P2 and P3, P1 and P4, P4 and P3, P1 and P5, P5 and P2, P2 and P6, P6 and P7, and P7 and P3. To do.

  FIG. 5B shows route definition data. A route is uniquely identified by selecting a start point Po and an end point Pd from points P1 to P7, and a route ID is assigned. Specifically, in the route with the route ID “R1”, the point P1 is selected as the start point Po, and the point P2 is selected as the end point Pd. Similarly, for the route with the route ID “R2”, the point P2 is selected as the start point Po, and the point P3 is selected as the end point Pd.

  Thus, if a plurality of routes are managed and the travel time of each route is calculated, the route can be efficiently selected. For example, when moving from the point P1 to the point P2, a route that can reach the point P2 earlier can be selected by comparing the moving time of the route R1 with the total moving time of the route passing through the point P5.

  Next, the processing operation of the security guard terminal will be described. FIG. 6 is a flowchart showing the processing operation of the security guard terminal. The processing operation shown in FIG. 6 is repeatedly executed by the security guard terminal. Further, this processing operation is realized by an application operating on the security guard terminal.

  When the process is started, the security guard terminal first determines whether or not an SSID is detected (step S101). If the SSID is not detected (step S101; No), the security guard terminal ends the process as it is.

  If the SSID is detected (step S101; Yes), the security guard terminal associates the detected SSID with the time information and the terminal ID of the own device (step S102), and transmits it to the management device 10 (step S103). The process is terminated.

  Next, the processing operation of the management apparatus 10 will be described. FIG. 7 is a flowchart showing the processing operation of the management apparatus 10. The travel time calculation unit 15b of the management device 10 first registers and accumulates the SSID and time received from the security guard terminal in the travel time data 14b (step S201). And the movement time calculation part 15b calculates the difference of passage time about SSID from which the passage time of the start point and the end point was obtained, and makes it the movement time of this SSID (step S202).

  The distribution generation unit 15c generates a travel time distribution from the travel time calculated by the travel time calculation unit 15b and accumulated in the travel time data 14b (step S203). The abnormality detection unit 15d determines whether there is an abnormality in the shape of the travel time distribution generated by the distribution generation unit 15c (step S204). In this step, it is determined whether or not there are a plurality of peaks whose frequency values exceed a predetermined value.

  If there is no abnormality in the shape of the travel time distribution (step S204; No), the abnormality detection unit 15d verifies a change from the travel time distribution previously generated for the same route (step S205), and the distribution change is abnormal. It is determined whether or not there is (step S206). In this step, it is determined whether or not the amount of change in the mode value of the travel time distribution exceeds a threshold value.

  If there is no abnormality in the change in the travel time distribution (step S206; No), the abnormality detection unit 15d ends the process as it is. When the distribution shape is abnormal (step S204; Yes) or when the distribution change is abnormal (step S206; Yes), the alarm processing unit 15e outputs an alarm (step S207), and the process is terminated. To do.

  As described above, in the security system according to the first embodiment, a travel time distribution is generated by calculating the travel time of a plurality of pedestrians passing through a route, and an unexpected situation is detected by the shape or change of the travel time distribution. Since the alarm is issued, the occurrence of the unexpected situation can be efficiently detected and the unexpected situation can be dealt with promptly.

  In Example 1, although the structure which calculates the pedestrian's movement time and detects abnormality from distribution of movement time was demonstrated, the movement time of a pedestrian may be influenced depending on an event. Therefore, in the second embodiment, a configuration that improves the accuracy of detecting an abnormality using an event schedule will be described. Further, in this embodiment, a usage example of an abnormality detection result will be described.

  FIG. 8 is an explanatory diagram of abnormality detection according to the second embodiment. First, the pedestrian travel time is calculated and accumulated in the same manner as in the first embodiment, and a travel time distribution is generated as shown in FIG. In FIG. 8A, the mode value of the pedestrian's travel time at time t1 is M (t1).

  Thereafter, in the detection of the abnormality according to the second embodiment, as shown in FIG. 8B, the fluctuation of the travel time is predicted based on the event schedule. For example, in a case where a concert is held as an event, the audience becomes pedestrians and goes on the route after the concert ends, so it is considered that congestion occurs and travel time increases. And how long a movement time becomes is estimated using the movement time of the pedestrian in a concert, ie, the pedestrian who is not a spectator, and the number of spectators. In FIG. 8B, the mode value of the movement time at time t2 is predicted to be M ′ (t2) due to the influence of the event.

  In the detection of the abnormality according to the second embodiment, as shown in FIG. 8C, a travel time distribution at time t2 is generated, and the mode M (t2) calculated from the travel time distribution and the predicted mode are calculated. When the difference from M ′ (t2) exceeds the threshold, it is detected that an unexpected situation has occurred.

  Thus, in the security according to the second embodiment, since an unexpected situation is detected using the pedestrian's travel time distribution and the event schedule, there is no false detection of congestion caused by the event as an abnormality, Detection accuracy can be improved. In addition, even if it is predicted that there is a change in the moving speed due to an event or the like, a case where such a change does not occur can be detected as an abnormality in the security according to the second embodiment.

  FIG. 9 is a configuration diagram illustrating an internal configuration of the management apparatus 110 according to the second embodiment. The management device 110 shown in FIG. 9 further stores event data 114d in the storage unit 14, and the control unit 15 further includes an event management unit 115f and a guard arrangement adjustment unit 115g. Different. The operation of the abnormality detection unit 115d is different from that of the abnormality detection unit 15d shown in the first embodiment. Since other configurations and operations are the same as those of the management apparatus 10 shown in the first embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.

  The event data 114d is data about an event held at the event venue. The event data 114d includes various data for predicting a change in the state of the route such as an event start time, an end time, and the number of customers. Also, information about nearby transportation facilities, such as train arrival and departure times at a station, may be registered as a kind of event that affects the route situation.

  The event management unit 115f is a processing unit that registers an event in the event data 114d and predicts a change in travel time based on the event data 114d. The abnormality detection unit 115d detects an abnormality using the prediction result from the event management unit 115f.

  Specifically, the abnormality detection unit 115d detects that an abnormality has occurred when the difference between the mode value calculated from the travel time distribution and the mode value predicted by the event management unit 115f exceeds a threshold value. To do.

  The guard arrangement adjusting unit 115g is a processing unit that adjusts the guard arrangement based on the movement time calculated by the movement time calculating unit 15b. The guard arrangement adjustment unit 115g adjusts the arrangement of the guards so that the guards can be rushed within a specified time, regardless of where the abnormality occurs in the area to be guarded.

  Specifically, the guard placement adjustment unit 115g calculates the time required for the guard to reach each point in the guard target area by comparing the travel time of each route with the current placement of the guard. To do. Then, if there is a point where the required time exceeds the specified time, the arrangement of other guards having sufficient time is changed, and adjustment is made so that the current arrangement of the guards is optimal. If the arrangement of the guards is changed by such adjustment, the change of the arrangement is transmitted to each guard through the guard state management unit 15a.

  In this way, by adjusting the arrangement of the guards based on the travel time, it is possible to eliminate the blind spots of the guards and quickly respond to the abnormalities. That is, the calculation of the route travel time can be used as an index for quantitatively evaluating the arrangement of guards, which has been conventionally performed based on empirical rules, and contributes to the improvement of the quality of the guards.

  As described above, in the security system according to the second embodiment, a travel time distribution is generated by calculating the travel time of a plurality of pedestrians passing through the route, and the travel time distribution and the event schedule are used to predict the travel time. Since the situation is detected, it is possible to efficiently detect the occurrence of an unexpected situation without erroneously detecting the congestion caused by the event as an abnormality. In addition, by adjusting the arrangement of guards based on the calculated travel time, it is possible to respond immediately to unexpected situations.

  In addition, in the said Example 1 and 2, the structure which acquires SSID from the portable terminal which a pedestrian carries and uses it for calculation of movement time was demonstrated. In such a configuration, it is preferable to call the pedestrian to turn on the tethering function. It is not necessary to acquire the SSID from all pedestrian mobile terminals, and it is possible to calculate the travel time if there is a person carrying the mobile terminal that provides the SSID among the pedestrians, but the mobile terminal that provides the SSID. This is because the travel time can be calculated more stably if there is a large number, and the travel time distribution can be obtained more accurately as the number of samples of the travel time increases.

  Moreover, if the portable terminal which a pedestrian carries can be identified by radio | wireless communication, since calculation of the travel time which concerns on this invention is possible, it is not limited to utilization of SSID. For example, while providing a wireless LAN router function on the security guard terminal side, contents such as event information are prepared on a server connectable via the security guard terminal, and a pedestrian accesses the wireless LAN via the security guard terminal. Motivation may be performed. In this case, since the pedestrian connects to the wireless LAN as a client, the MAC address of the pedestrian's portable terminal may be transmitted to the management device in association with the time.

  In addition, the mobile terminal carried by the pedestrian and the security guard terminal can communicate with each other using a communication standard such as BLUETOOTH (registered trademark), and the identification information of the mobile terminal carried by the pedestrian can be acquired. In this case, it is not necessary to complete the pairing, and the identification information of the portable terminal transmitted and received at the stage of trying the pairing may be transmitted to the management apparatus in association with the time.

  Moreover, in the said Example 1 and 2, the guard terminal is used for acquisition of the identification information from the portable terminal which a pedestrian carries. For this reason, it is possible to flexibly change the route to be calculated for the travel time by moving the guard. For example, even when the entrance and exit at the event venue are different, or when the main route becomes unavailable and the travel time of the alternative route needs to be calculated, it is possible to respond immediately.

  In Examples 1 and 2 described above, the case where a security guard terminal is used to acquire identification information from a mobile terminal carried by a pedestrian has been described as an example, but fixed communication equipment is arranged on the route, It is good also as a structure which a fixed communication equipment acquires the identification information of a pedestrian's portable terminal.

  Further, the evaluation of the shape of the travel time distribution shown in the first and second embodiments is merely an example, and an abnormality can be detected from the travel time distribution using any method. For example, the separation of the frequency values in the travel time distribution may be determined by Otsu's discriminant analysis method and used for detecting anomalies.

  Moreover, the calculation result of a movement time is not limited to Example 1 and 2, It can utilize arbitrarily. For example, it is possible to quantitatively evaluate the result of traffic arrangement by measuring in real time how the pedestrian's travel time has changed as a result of security arrangements by the security guard. In addition, the evaluation result can be fed back to the guard.

  Moreover, since movement time can be calculated in real time for each movement direction, it is possible to arrange guards using the movement direction. For example, if the travel time is long in the direction toward the event venue on one road and the travel time is short in the direction returning from the event venue, a guard can be assigned to guide the person going to the event venue. And if the travel time is long both in the direction to the event venue and in the return direction, there is a possibility that a stay has occurred due to an accident at the site, so it is possible to take measures such as dispatching multiple guards. is there.

  The security system and the security method according to the present invention are suitable for efficiently detecting the occurrence of an unexpected situation and responding to the unexpected situation immediately.

DESCRIPTION OF SYMBOLS 10,110 Management apparatus 11 Display part 12 Input part 13 Communication part 14 Storage part 14a Security guard data 14b Travel time data 14c Distribution data 15 Control part 15a Security state management part 15b Travel time calculation part 15c Distribution generation part 15d, 115d Abnormality detection Unit 15e alarm processing unit 114d event data 115f event management unit 115g security guard placement adjustment unit Tu1, Tu2 mobile terminal Tg1, Tg2 security guard terminal Po start point Pd end point P1-P7 point

Claims (7)

A security system that guards event venues where multiple visitors with mobile devices visit,
Passing time acquisition means for acquiring the passing time through which the plurality of visitors pass on each route in or around the event venue,
Detecting means for detecting the occurrence of an unexpected situation based on the passing time on each route of each visitor acquired by the passing time acquiring means;
When the occurrence of the contingency is detected by said detecting means, and an alarm output means for outputting an alarm,
The detection system detects the occurrence of the unexpected situation by generating a distribution of the passage time acquired by the passage time acquisition means and evaluating the shape of the distribution . The transit time acquisition means includes
It is arranged at the first time when short-range wireless communication is possible between the portable terminal possessed by the security guard placed at the start point of each route and the portable terminal carried by each visitor, and at the end point of each route The plurality of visitors pass on each route based on a second time at which short-distance wireless communication is enabled between the portable terminal possessed by the security guard and the portable terminal possessed by each visitor. The passage system is acquired. The security system according to claim 1 characterized by things. 3. The security system according to claim 1 , wherein the detection unit detects that the unexpected situation has occurred when a value of a transit time for forming a peak in the distribution is a predetermined number or more. . The security system according to claim 1 , wherein the detection unit detects the occurrence of the unexpected situation based on a temporal change in the shape of the distribution. Event schedule management means for managing a schedule of an event performed at the event venue is further provided,
The security system according to any one of claims 1 to 4 , wherein the detection unit evaluates a shape of the distribution while referring to an event schedule managed by the event schedule management unit. The security system according to any one of claims 1 to 5 , further comprising guard arrangement change means for changing the arrangement of the guards based on the passage time acquired by the passage time acquisition means. . A security method for guarding an event venue where a plurality of visitors with mobile terminals visit,
A transit time obtaining step for obtaining a transit time for the plurality of visitors to pass on each route in or around the event venue;
A detection step of detecting the occurrence of an unexpected situation based on the transit time on each route of each visitor obtained by the transit time acquisition step;
When the occurrence of the contingency is detected by the detecting step, see contains an alarm output step of outputting an alarm,
The detection step detects the occurrence of the unexpected situation by generating a distribution of the passage time acquired by the passage time acquisition step and evaluating the shape of the distribution. Method.

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