Security system using suspicious person information

Abstract

To provide a security system that makes it easy for a user to understand the appearance characteristics of a suspicious person.SOLUTION: A suspicious person information collection server 2 includes a suspicious person information database 21 that stores suspicious person information received from the outside, a building information database 24 that registers information on the installation location of a building entry / exit management system 3, a person image database 22 that registers multiple images representing human characteristics, and an image generation unit 23 that synthesizes a suspicious person image from a plurality of images registered in the person image database 22 and registers it in the suspicious person information database 21, and the suspicious person information collection server 2 transmits the suspicious person information registered in the suspicious person information database 21 to the building entry / exit management system 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a security system that utilizes suspicious person information in a building entrance / exit management system. [Background technology]

[0002] The demand for security in buildings and facilities such as homes, offices, schools, and hospitals is increasing year by year. Security systems that provide information on suspicious people in the vicinity of these facilities are being introduced.

[0003] As an example of a security system, Patent Document 1 discloses a wide-area surveillance system that, if it determines that a suspicious person is present based on images captured by surveillance cameras installed in various locations in the area, transmits suspicious person information including information indicating the positional relationship between the location where the suspicious person was found and the user's location to a user who has registered in the system. Patent Document 2 discloses a residential security system that detects images of people in a common area of ​​a house, and, if it determines that the person is a suspicious person, displays warning information on a display means installed at the entrance. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-078150 A [Patent Document 2] JP 2010-146189 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the suspicious person information displayed by these systems is often composed of text information that indicates the location, date and time of the incident, and the characteristics of the suspicious person. It is difficult for users who come across this suspicious person information to understand the suspicious person's external characteristics from the text information alone.

[0006] An object of the present invention is to provide a security system that makes it easy to grasp the external characteristics of a suspicious individual. [Means for solving the problem]

[0007] The security system of the present invention is a security system consisting of a suspicious person information collection server and a building entry / exit management system connected to the suspicious person information collection server via a network, wherein the suspicious person information collection server is equipped with a suspicious person information database which stores suspicious person information received from outside, a building information database which registers information on the installation location of the building entry / exit management system, a person image database which registers a plurality of images representing human characteristics, and an image generation unit which synthesizes a suspicious person image from the suspicious person information and the plurality of images registered in the person image database and registers the image in the suspicious person information database, and the suspicious person information collection server transmits the suspicious person information registered in the suspicious person information database to the building entry / exit management system.

[0008] According to the present invention, by including an image obtained by synthesizing a suspicious person image in the suspicious person information, it is possible to realize a security system that makes it easy to grasp the external characteristics of a suspicious person.

[0009] In the security system of the present invention, it is preferable that the multiple images in the person image database include images of each body part of a person, and the image generation unit obtains from the person image database images of each body part of a suspicious person corresponding to information on each body part of the suspicious person contained in the suspicious person information, synthesizes an image of the suspicious person, and registers it in the suspicious person information database in association with the suspicious person information.

[0010] According to the present invention, images of each body part of a suspicious person corresponding to the information on each body part of a suspicious person contained in the suspicious person information are obtained from a person image database in which images of each body part of a human are registered, and an image of the suspicious person is synthesized, thereby realizing a security system that can easily generate images of a suspicious person.

[0011] In the security system of the present invention, the building entry / exit management system includes an entry / exit management system that manages the entry and exit of users, and it is preferable that the entry / exit management system displays suspicious person information when a user exits the building.

[0012] According to the present invention, since suspicious person information is displayed when a user leaves a building, it is possible to realize a security system that can call attention to the user when leaving a building.

[0013] In the security system of the present invention, it is preferable that the card reader evaluates whether there is a match or mismatch between the user attribute information of a user leaving a building and multiple pieces of suspicious person information, prioritizes the information to be displayed, and selects the information with the highest priority as the information to be displayed on the display unit.

[0014] According to the present invention, the attribute information of a user leaving a building is evaluated for match or mismatch with multiple pieces of suspicious person information, thereby realizing a security system that can select and display the most useful information for the user from among the multiple pieces of suspicious person information.

[0015] In the security system according to the present invention, it is preferable that the building entrance / exit control system includes a video surveillance system, and the video surveillance system displays the suspicious person information received from the suspicious person information collection server.

[0016] According to the present invention, it is possible to realize a security system including a video monitoring system that displays information about a suspicious person.

[0017] In the security system according to the present invention, the display unit preferably includes a display unit that, when there is a plurality of pieces of suspicious person information received from the suspicious person information collecting server, displays the plurality of pieces of suspicious person information in a circular manner.

[0018] According to the present invention, since a display unit that displays information in a circular manner is provided, a security system can be realized in which even when there is information about a plurality of suspicious persons, all of the information about suspicious persons can be easily confirmed. Effect of the Invention

[0019] According to the security system of the present invention, it becomes easier to grasp the external characteristics of a suspicious person in the suspicious person information. [Brief description of the drawings]

[0020] [Figure 1] 1 is a diagram showing the configuration of a security system according to the present invention; [Diagram 2] FIG. 2 is a diagram showing a form of a suspicious person information database according to the present invention; [Diagram 3] FIG. 2 is a diagram showing a form of registered data in a portrait database according to the present invention; [Figure 4] FIG. 1 is a diagram showing a form of registered data in a building information database according to the present invention; [Diagram 5] FIG. 1 is a diagram showing a form of registered data in a user information database according to the present invention; [Figure 6] 1 is a diagram showing a display example on a display unit of the entrance / exit management system according to the present invention; [Figure 7] 1A and 1B are diagrams showing examples of displays on a display unit of a video surveillance system according to the present invention; [Figure 8] FIG. 13 is a diagram showing a classification table for classifying suspicious person information according to the present invention. [Figure 9] 1 shows a flowchart for classifying suspicious person information into patterns according to the present invention. [Figure 10] 11 is a diagram showing an example of display priority order based on damage details of suspicious person information according to the present invention. FIG. [Figure 11] FIG. 13 is a diagram showing an example of a table that defines the priority order of suspicious person information according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] An example of an embodiment of the present invention will be described in detail below. In the following description, specific shapes, materials, directions, values, etc. are merely examples for the purpose of facilitating understanding of the present disclosure, and can be appropriately changed according to the application, purpose, specifications, etc.

[0022] FIG. 1 shows a security system 1 of the present invention, which is composed of a suspicious person information collection server 2 and a building entrance / exit control system 3. The suspicious person information collection server 2 and the building entrance / exit control system 3 are connected via a network N and are capable of transmitting and receiving data. The building entrance / exit control system 3 includes an entrance / exit control system and a video surveillance system, which will be described later. In the security system 1 of the present invention, multiple building entrance / exit control systems 3 can coexist (3-n).

[0023] The suspicious person information collection server 2 is connected to an external organization 500 that provides suspicious person information via a network N, and receives suspicious person information from the external organization 500 periodically or irregularly. In the present invention, suspicious person information is information on the appearance of a suspicious person, and is composed of text information, such as the characteristics of the suspicious person, the date and time of occurrence, the location of occurrence, the characteristics of the victim, and the details of the damage. Here, the characteristics of a suspicious person include elements such as gender, age, body shape, height, hairstyle, hair color, and clothing characteristics, but are not limited to these.

[0024] In the present invention, the suspicious person information will be mainly described as information about a person, but is not limited to this. For example, the occurrence of a dangerous animal may be treated as a suspicious person. Hereinafter, the elements constituting the security system 1 of the present invention will be described with reference to the drawings.

[0025] [1. Suspicious person information collection server 2] 1 shows a suspicious person information collection server 2 in a security system 1 of the present invention. The suspicious person information collection server 2 includes a suspicious person information database 21 for registering suspicious person information, a human image database 22 for storing images for generating suspicious person images, and a building information database 24 for registering information relating to the installation location of a building entrance / exit control system 3.

[0026] 2 shows an example of data registered in the suspicious person information database 21, which is made up of suspicious person information 211 plus a suspicious person image 212 that visually represents the characteristics of a suspicious person and is generated by an image generating unit 23, which will be described later. In this invention, the term "suspicious person information" refers to both information related to the occurrence of a suspicious person provided by an external organization 500 and the suspicious person image.

[0027] FIG. 3 shows an example of the data structure of image data registered in the person image database 22. The person image database 22 is a database consisting of images classified according to the characteristics of each part of a person. Major categories include body shape, clothing, height, hairstyle, hair color, etc. Subcategories of body shape include, but are not limited to, slim, medium build, fat, no information, etc. Subcategories of clothing include, but are not limited to, long sleeves, long pants, short sleeves, short pants, skirt, etc. Images of clothing are colored or patterned according to color and pattern information. As for subcategories of height, if a specific height number is written in the suspicious person information, it is displayed as written. Subcategories of hairstyle include, but are not limited to, long, short, etc. Subcategories of hair color include, but are not limited to, black, brown, blonde, etc.

[0028] The image generating unit 23 generates an image (suspicious person image) that visually expresses the characteristics of a suspicious person by combining image elements registered in the person image database 22 based on the elements of the characteristics of the suspicious person, and registers the image in the suspicious person information database 21. FIG. 2 shows a suspicious person image 212 registered in the suspicious person information database 21.

[0029] 4 shows an example of data registered in the building information database 24. The building information database 24 is a database that stores information and the like relating to the installation location of the building entry / exit control system 3 connected to the suspicious person information collection server 2 via the network N. For example, the data may include the building ID, building name, address, number of displays, suspicious person information confirmation status, manager name, manager contact information, and the like.

[0030] The control unit 25 operates in cooperation with each component to realize each function of the suspicious person information collection server 2. In one embodiment, it is realized by a computer and a program executed by the computer, and each component is connected by a data bus 28. An example of a function executed by the control unit 25 is a function to transmit suspicious person information via the transmission / reception unit 26 to the building entry / exit control system 3 where the suspicious person's location is within a certain distance range from the installation location of the building entry / exit control system 3, based on the suspicious person information registered in the suspicious person information database 21. Furthermore, the control unit 25 can also control the control functions of the various databases described above, and the reception of suspicious person information from the external organization 500.

[0031] The transmitting / receiving unit 26 receives suspicious person information provided from an external source. It also transmits and receives data to and from the building entrance / exit control system 3 constituting the security system 1 via the network N. In the present invention, the connection between the suspicious person information collection server 2 and the building entrance / exit control system 3 is described on the assumption that the connection is via a network, but is not limited to this. For example, communication via a telephone line or electronic media can also be used.

[0032] The storage unit 27 temporarily stores the suspicious person information received by the transmission / reception unit 26, or temporarily stores data read from the suspicious person information database 21 to be transmitted to the building entrance / exit control system 3.

[0033] [2. Building Entrance and Exit Control System 3] 1 shows a building entrance / exit control system 3 in a security system 1 of the present invention. The building entrance / exit control system 3 is connected to a suspicious person information collection server 2 via a network N, and upon receiving suspicious person information collected by the suspicious person information collection server 2, displays the suspicious person information on a display unit 33. Specific forms include the following entrance / exit control systems and video surveillance systems.

[0034] [2-1. Entrance and exit management system] The entrance / exit control system is one form of the building entrance / exit control system 3 in the present invention, and includes a user information database 31, a card reader 32, a display unit 33, a control unit , and a transmission / reception unit .

[0035] The user information database 31 stores attribute information of registered users. The attribute information includes, but is not limited to, a user ID, a user name, a building name to be used, a gender, a date of birth, and contact information.

[0036] When a user holds an ID card or mobile terminal over the card reader 32 when entering or leaving a room, the card reader 32 reads the ID information and manages the user's entry and exit. The card reader 32 compares the ID information with information registered in the user information database 31 to determine whether the user is a registered user. When entering the room, the card reader 32 is equipped with an unlocking function that allows entry to the building if the user is verified to be a registered user.

[0037] In this embodiment, when leaving the room, the user is notified of suspicious person information. First, the control unit transmits building information (address, name, etc.) in which the card reader 32 is installed to the suspicious person information collection server 2. If the distance between the installation location of the card reader 32 and the location where the suspicious person occurred is within a predetermined range, the suspicious person information collection server 2 transmits suspicious person information to the card reader 32. The card reader 32 uses the display unit 33 to display the suspicious person information received by the transmission / reception unit 35 from the suspicious person information collection server 2. This notifies the user leaving the room that there is a suspicious person outside, and allows the user to be given an appropriate warning.

[0038] The display unit 33 is configured with an LCD or the like, but is not limited to this as long as it can display the suspicious person information. It may be configured integrally with the card reader 32, or may be configured to be separately placed near the card reader 32.

[0039] The control unit 34 operates in cooperation with each component to realize each function of the entrance / exit management system. In one embodiment, it is realized by a computer and a program executed by the computer, and each component of the entrance / exit management system is connected to the control unit 34 via a data bus 36. Functions executed by the control unit 34 may include control of the transmission / reception unit 35, control of the card reader 32, control of the display unit 33, etc.

[0040] [2-2. Video management system] The video management system is another form of the building entrance / exit management system 3 in the present invention, and includes a transmitter / receiver 35, a display unit 33, and an operation unit 37.

[0041] The transmitting / receiving unit 35 receives suspicious person information from the suspicious person information collecting server 2. Also, it transmits to the suspicious person information collecting server 2 a message indicating that the suspicious person information has been confirmed.

[0042] The display unit 33 displays the suspicious person information received from the suspicious person information collection server 2. The display unit 33 is composed of an LCD, CRT, etc., but is not limited to these as long as it can display the suspicious person information. The display unit 33 provided in the video surveillance system has a relatively large display area compared to the display unit 33 provided in the entrance / exit management system, and is configured to be able to display camera images and other text information in addition to the suspicious person information.

[0043] The operation unit 37 has a confirmation key for sending to the suspicious person information collection server 2 that the suspicious person information displayed on the display unit 33 has been confirmed, and a key for sending the information sequentially when there are multiple suspicious person information.

[0044] [3. Displaying image of suspicious person] In the security system 1 of the present invention, a suspicious person image visually expressing the characteristics of a suspicious person is displayed on the display unit 33 of the building entry / exit control system 3 based on the suspicious person information. This makes it much easier to grasp the external characteristics of a suspicious person compared to suspicious person information that is only in text. This will be described with reference to Figs. 6 and 7 together with the characteristics of the suspicious person image.

[0045] FIG. 6 shows the display unit 33 of the card reader 32 in the entrance / exit management system. The display unit 33 is provided with a text information display unit 321, an image display unit 322, and various buttons 323. The various buttons 323 are input keys for setting the card reader 32 and setting the display format. FIG. 6 is configured with a touch panel display, and the various buttons 323 have functions assigned to the button images, but this is not limited to this. Physical push buttons may also be provided. Also, although not shown, a card scanning unit may be embedded anywhere on the screen of FIG. 6.

[0046] The text information display section 321 displays text information in the suspicious person information. Specifically, this is text information such as details of the damage and characteristics of the suspicious person included in the suspicious person information. When suspicious person information with a suspicious person ID of S-000001 in the suspicious person information database in FIG. 2 is sent to the card reader 32, the text information display section 321 displays "Called, Age 30s, Male, Medium Build, Long Blonde Hair, Gray Long Sleeves, Black Pants, Sunglasses."

[0047] If the suspicious person information displayed on the display unit 33 of the card reader 32 is only text, it takes time to check the text information. If the user is in a hurry to leave the room, he or she may not have time to check, and may overlook the information displayed that a suspicious person has appeared near the building before leaving.

[0048] In this embodiment, the image display unit 322 displays a front image of the suspicious person image in the suspicious person information. The rear image of the suspicious person image may be displayed alternately at regular time intervals. The suspicious person image displayed on the image display unit 322 is an image synthesized by the image generation unit 23 of the suspicious person information collection server 2. This image is an image (illustration) of the information about the suspicious person displayed on the text information display unit 321, making it easy to recognize the features at a glance. Furthermore, by making it an image, it is easier for the user to remember it.

[0049] The suspicious person image displayed on the image display section 322 is an image that clearly shows the external characteristics of the suspicious person. By displaying the image in this way, the details can be confirmed at a glance even in the short time it takes to leave the room, so there is no risk of overlooking it. The details of the damage may also be displayed in a large red frame. If the details of the damage are short words, it will not take much time to confirm them.

[0050] Next, Fig. 7 shows the display unit 33 in the video surveillance system. The display unit 33 in the video surveillance system is installed in the manager's room of the building or the like, and is composed of an LCD or CRT. Compared to the display unit 33 of the card reader 32 of the entrance and exit management system, it has a larger display area and can display more information. In the display unit 33 in Fig. 7, a large information display unit 331 is provided in the right half, and two camera image display units 336 are provided above and below on the left side of that.

[0051] The information display section 331 is provided with a damage content display section 332 in which the damage content is displayed in a large red frame in the upper left, a first character display section 333 in which character information of the date and time of the suspicious person's occurrence and the location of the occurrence are displayed to the right of the damage content display section 332 above the information display section 331, and a second character display section 334 in which character information expressing the characteristics of the suspicious person is displayed is further provided below the information display section 331. An image display section 335 occupying a large area is provided in the center of the information display section 331 between the first character display section 333 and the second character display section 334. The image display section 335 displays a front image and a back image of the suspicious person image in the suspicious person information side by side, so that the characteristics of the suspicious person displayed as character information in the second character display section 334 can be easily understood.

[0052] The camera image display unit 336 displays images captured by surveillance cameras installed in various places in the building where the video surveillance system is installed. In Fig. 7, two camera image display units 336 are provided, one above the other, but the two camera image display units 336 may be combined into one display unit by using the operation unit described next, or an even smaller camera image display unit 336 may be configured.

[0053] The display unit 33 of the video surveillance system is linked to the operation unit 37. The operation unit 37 performs the following operations on the information displayed on the display unit 33. There are cases where multiple pieces of suspicious person information are sent to the video surveillance system from the suspicious person information collection server 2. For suspicious person information sent for the first time, for example, the word "NEW" is displayed on the information display unit 331 to indicate that it is new information. The operator viewing the suspicious person information on the display unit 33 presses the confirmation key on the operation unit 37 to send a message to the suspicious person information collection server 2 that the new suspicious person information has been confirmed.

[0054] One piece of suspicious person information is displayed on the information display section 331. The operation section 37 has a forward key, and the next piece of suspicious person information can be displayed by pressing the forward key. The display section 33 may also be configured to display a plurality of pieces of suspicious person information in rotation at a predetermined time interval.

[0055] [4. Display priority of suspicious person information] Next, a method for determining the display priority of suspicious person information on the display unit 33 of the entrance and exit management system will be described. As explained in FIG. 6, the display unit 33 of the entrance and exit management system is a small display unit attached to the card reader 32, and therefore can only display one suspicious person image. To display multiple images, a large display unit would need to be provided separately from the card reader 32, which is not realistic. Therefore, the entrance and exit management system of the present invention determines the display priority by comparing the user's attribute information with the date and time of exit and the contents of the suspicious person information.

[0056] FIG. 8 shows a classification table for classifying suspicious person information. Suspicious person information is classified into six categories: victim's gender, age, suspicious person occurrence date, occurrence time block, occurrence time, and details of damage caused by the suspicious person. Here, the date is classified into today, one week, one month, and three months, but this is merely an example, and the classification may be more detailed or rough, or may be longer. The time block is classified into five categories according to the occurrence time: early morning (4:00 to 6:59), morning (7:00 to 10:59), afternoon (11:00 to 14:59), evening (15:00 to 17:59), and night (18:00 to 3:59). This is also merely an example, and other classifications may be used. According to this classification, it is determined which of the six categories the suspicious person information falls into. If there is no information for a part of the suspicious person information, the classification is unknown.

[0057] FIG. 9 shows a flowchart for determining a classification pattern number N for suspicious person information. The classification pattern number N is used when determining the display priority of suspicious person information. The smaller the value of N, the higher the display priority of suspicious person information. When determining the classification pattern number N, the system first roughly classifies the suspicious person occurrence date (S1 to S7). First, it is evaluated whether the date is today (S1). If the date is today, N=1 (S2). If the date is not today, it is evaluated whether it is one week (S3). If the date is one week, N=5 (S4). If the date is not one week, it is evaluated whether it is one month (S5). If the date is one month, N=9 (S6). If the date is not one month, N=13 (S7).

[0058] Next, the final classification pattern is determined based on whether the victim's gender and age match the user's gender and age (S8 to S15). First, it is evaluated whether the victim's gender and the user's gender match (S8). If the genders match, it is then evaluated whether the ages match (S9). If the ages match, the victim's and the user's genders and ages match, and for the user, this suspicious person information is information that requires the most attention. In this case, N=N+0 is calculated (S10). If the ages do not match, N=N+1 is calculated (S11). If the genders do not match in S8, it is evaluated whether the ages match (S12). If the ages match, the victim's and the user's genders do not match, and their ages match. Since the victim's and the user's genders do not match, it is determined that less attention is required than when the genders match, and N=N+2 is calculated (S13). If the ages do not match, it is determined that no further attention is required because neither the gender nor the age match, and N=N+3 is calculated (S14). The number N calculated in S10, S11, S13, and S14 is any one of 1 to 16, and N is treated as the final classification pattern number and classified into classification pattern number N (S15).

[0059] Figure 10 is a table that defines the display priority of damage details for each user group, which is obtained by classifying users of the access control system by gender and age. Age is divided into three groups: children, adolescents, and adults, but it is also possible to divide them further by specific ages. Three examples are explained below.

[0060] FIG. 11 shows an example of a table that determines the display priority of suspicious person information according to the display priority of the damage details for each user group in FIG. 10 for the classification pattern number determined by the procedure in the flowchart in FIG. 9. Here, the pattern is one in which gender match is prioritized over age match, but the reverse is also possible. Therefore, for classification pattern numbers 2 and 3, the display priority is set to 2 or 3, but it may be determined depending on which is prioritized when the system is implemented. The same is true for classification pattern numbers 6 and 7. Although the notation is omitted for the case where the date is one month and the case where the date is three months, as explained above, it may be determined according to the relationship between the date of occurrence of the suspicious person and the time of leaving the user's room, and the degree of match between the gender and age of the victim and the user.

[0061] When there is multiple suspicious person information, if the classification pattern numbers of each suspicious person information are all different, the suspicious person information with the smallest classification pattern number is displayed first. When there is multiple suspicious person information and multiple numbers have the smallest classification pattern number, the display priority is further determined based on the time of the suspicious person information and the damage details. An example of the display priority for the damage details is shown in Figure 10.

[0062] The display priority of classification pattern numbers 1 to 4 will be explained below as an example. Classification pattern number 1 is when a suspicious person occurred today and the victim and the user's gender and age match. In this case, information with the closest occurrence time is displayed with priority. If the occurrence time is also the same, the information is displayed according to the priority order of damage details in FIG. 10.

[0063] If the classification pattern number is 2 or 3, a suspicious person occurred today and either the victim's gender or age matches the user's. In this case, the display priority is determined based on the priority of the damage content. In this case, the priority numbers to include may be determined based on the user's gender and age. If the damage priorities are the same, priority is given to information that occurred closest to the time of the damage. If the classification pattern number is 4, priority is also given to the damage priority, and if the damage priorities are the same, priority is given to information that occurred closest to the time of the damage.

[0064] For classification pattern numbers 5 to 16, when there are multiple suspicious person information, the display priority is determined based on the gender and age match between the victim and the user, the time of occurrence of the crime, the time block, etc. As an example, Fig. 11 shows a table for determining the display priority when the date is one week.

[0065] It should be noted that the present invention is not limited to the above-described embodiment and its modified examples, and various modifications and improvements are possible within the scope of the matters described in the claims of this application. [Explanation of symbols]

[0066] 1 security system, 2 suspicious person information collection server, 21 suspicious person information database, 22 person image database, 23 image generation unit, 24 building information database, 25 control unit, 26 transmission / reception unit, 27 memory unit, 28 data bus, 3 building entrance / exit control system (entrance / exit control system, video surveillance system), 31 user information database, 32 card reader, 321 character information display unit, 322 image display unit, 323 button, 33 display unit, 331 information display unit, 332 damage content display unit, 333 first character display unit, 334 second character display unit, 335 image display unit, 336 camera image display unit, 34 control unit, 35 transmission / reception unit, 36 data bus, 500 external agency, N network

Claims

1. A suspicious person information collection server; A security system including a building entrance / exit control system connected to the suspicious person information collection server via a network, The suspicious person information collection server includes: a suspicious person information database that stores suspicious person information received from outside; A building information database in which information on the installation location of the building entrance / exit control system is registered; A database of human images that contains multiple images that represent human characteristics; an image generating unit that synthesizes a suspicious person image from the suspicious person information and the plurality of images registered in the person image database, and registers the synthesized image in the suspicious person information database; Equipped with the suspicious person information collection server transmits the suspicious person information registered in the suspicious person information database to the building entrance / exit control system; The building entrance / exit control system includes an entrance / exit control system that manages the entrance and exit of a user, the entrance / exit control system includes a card reader that reads information from a user when the user leaves the building, and a display unit; When it is determined that the user is leaving the building based on the information from the card reader, the suspicious person information including the suspicious person image is displayed on the display unit to the user who is leaving. Security system.

2. 2. The security system of claim 1, the plurality of images in the human image database include images of each body part of a person; the image generation unit acquires from the person image database an image of each body part of the suspicious person corresponding to information on each body part of the suspicious person included in the suspicious person information, synthesizes the image of the suspicious person, and registers the image in the suspicious person information database in association with the suspicious person information. Security system.

3. 2. The security system of claim 1, the card reader evaluates whether there is a match or a mismatch between the user attribute information of the user leaving the building and the plurality of pieces of suspicious person information, prioritizes the information to be displayed, and selects the information with the highest priority as the information to be displayed on the display unit; Security system.

4. 3. A security system according to claim 1 or 2, The building entrance / exit control system includes a video surveillance system, Displaying the suspicious person information received from the suspicious person information collection server. Security system.

5. 5. The security system of claim 4, the display unit includes a display unit that, when there is a plurality of pieces of suspicious person information received from the suspicious person information collecting server, displays the plurality of pieces of suspicious person information in a circular manner; Security system.

Images