JP7353613B1 - Admission management system - Google Patents

Abstract

An object of the present invention is to provide an entrance management system that manages entry into a controlled area by impersonation or tailgating.
[Solution] At the entrance to the controlled area, authentic users are identified through biometric authentication, the number of authentic users and the number of people scheduled to enter the controlled area are identified, and the number of authentic users and the number of people scheduled to enter are compared. As a result, entry by impersonators and tailgating will be restricted. In addition, by issuing temporary tags, authorized persons other than genuine users are allowed to enter, but if it is predicted that the number of allowed visitors will exceed the set number of allowed visitors, entry will be restricted even for genuine users. I decided to do so.
[Selection diagram] Figure 2

Description

The present invention identifies genuine users through biometric authentication, identifies the number of people scheduled to enter a controlled area, and compares the number of genuine users with the number of people scheduled to enter, thereby preventing impersonation and tailgating. It relates to an admission management system that manages admission.

Specifically, the authentic users and their number are identified by biometric authentication means that acquires biometric information. The number of people scheduled to enter may be determined by image acquisition means, image analysis means, etc. at the entrance to the managed area. The present invention relates to an admission management system capable of determining whether those who are planning to enter are only genuine users, and whether other persons included in those who are planning to enter are unauthorized visitors.

Here, the biometric authentication means is preferably a wearable device such as a skin contact type that acquires pulse waves, etc., a glasses type that acquires iris, a waist-worn type that acquires movement characteristics, etc. It may be a determination means that authenticates the user's identity by performing an appraisal. The image analysis means and the like only need to be able to obtain the number of people, and a video judgment device, a heat sensing sensor, etc. may also be used together.

2. Description of the Related Art Conventionally, IC card authentication devices have been widely used at factory entrances and exits, etc., which acquire a user ID from an IC card such as an employee identification card through short-range wireless communication, and permit only employees to enter. However, in the case of entrance authentication using an IC card, it was not possible to prevent ``spoofing'' due to unauthorized use of the IC card, or ``tailgating'' by accompanying authorized users to the entrance.

In recent years, in the manufacturing industry, strict entry control to controlled areas has become required in order to ensure the quality of products. For example, in car painting operations, even a small amount of dust can affect the quality of the painting, so the painting line is divided by partition walls, and entry is restricted to only skilled workers who are proficient in painting operations.

In addition, the Pharmaceutical Inspection Agreement and Pharmaceutical Inspection Joint Scheme (hereinafter referred to as "PIC/S"), in which the European Medicines Agency, the Food and Drug Administration of the United States, the Ministry of Health, Labor and Welfare of Japan, etc. A new standard has been adopted to determine the maximum number of operators in a clean room (2022 revised PIC/S GMP Annex 1 7.2) to ensure that the maximum number of operators in a clean room is not compromised, and the pharmaceutical industry is required to control admission, including limiting the number of people. Now you can.

Traditionally, in many fields there are controlled areas where tailgating should be prevented, such as entry to an event venue or entry to a bank vault. In these controlled areas, the number of visitors is also managed by presenting identification cards and using machines to obtain the number of visitors.

However, simply obtaining the number of visitors does not eliminate unauthorized admission, and there is a need to provide a system that limits the number of people and guarantees proper admission. Therefore, the present inventor has invented an entrance management system that can manage entrance by impersonation and tailgating, and can be applied to managed areas with limited number of people.

Patent Document 1 discloses a technology for an entrance management system that authenticates users using biometric information and manages entry of users into designated areas. According to the technology described in this document, before a user enters a designated area, multiple pieces of biometric information are repeatedly acquired and stored using an authentication device, and biometric information is selected from among the stored multiple pieces of biometric information. Biometric information of the most suitable quality is extracted and biometric authentication is performed.

However, even if the accuracy of identity authentication is improved by the technology described in Patent Document 1, when the authentication device is used by another person after identity authentication, the other person There was a problem in that it was possible to ``spoof admission'' by someone.

Furthermore, even if the admission of authenticated users can be managed using the technology described in Patent Document 1, if there is tailgating, the actual number of attendees will be greater than the number of authenticated users, and the number of attendees will be reduced. I couldn't manage it. Furthermore, since there is no set limit on the number of allowable visitors, even if the current number of visitors is large, it is not possible to limit the number of visitors, and it is not possible to comply with the PIC/S revised in 2022. Ta.

Patent Document 2 describes a suspicious person detection system that is capable of identifying a suspicious person among the users when the suspicious person exists among a plurality of users attempting to enter a restricted area. technology has been disclosed.

According to the technology described in this document, multiple antennas are installed at entrances and exits of buildings, and radio waves emitted from pre-registered mobile terminals are received by the multiple antennas, and based on the radio field strength of the received radio waves, The exact location of each mobile device is determined by trilateration. Further, images of people are photographed using a camera, the position of each person image is specified, and a person whose position of the person image does not match the position of the mobile terminal is determined to be a suspicious person.

However, even if the technology described in Patent Document 2 makes it possible to identify the location of a mobile terminal and the number of people in the area and prevent tailgating, if the mobile terminal is being used illegally, unauthorized access to restricted areas may occur. There was a problem in that it meant allowing users to stay, making it impossible to prevent spoofing.

Patent Document 1: Japanese Patent Application Publication No. 2015-185097 Patent Document 2: International Publication No. 2007-138811

The problem to be solved by the present invention is to identify genuine users using biometric authentication at entrances and exits to managed areas, as well as identify the number of genuine users and the number of people scheduled to enter the managed area, and identify the number of genuine users and the number of people scheduled to enter the managed area. An object of the present invention is to provide an admission management system that manages admission by impersonation and tailgating by comparing the number of people.

A first aspect of the present invention is an admission management system for managing entrance to a controlled area, which includes a wearable terminal, a means for acquiring the number of people scheduled to enter, a means for acquiring the number of genuine users, a tailgating determination means, and a position specifying means. and a radio wave emitting/receiving means, and the wearable terminal verifies whether the user is a genuine user by comparing the biometric information with the biometric determination information, and a biometric information acquisition means that continuously obtains biometric information of the user. It functions as a user determination means for determining whether or not the user is a genuine user, and a biometric information storage means for storing biometric determination information of a genuine user in advance, and the means for acquiring the number of people scheduled to enter is an image acquisition means and an image analysis means. The image acquisition means and the radio wave emitting/receiving means are provided at an entrance to the entrance, and the image analysis means analyzes the images of visitors acquired by the image acquisition means to obtain the number of people scheduled to enter the entrance. The biometric information acquisition means obtains biometric information of a user entering the controlled area at the entrance, and the user determination means compares the biometric information with the biometric determination information to determine whether the user is permitted. The number of genuine users obtaining means obtains the number of genuine users, and the tailgating determining means determines whether or not the number of users scheduled to enter is the same as the number of genuine users. When it is determined that there are no companions and the number of people scheduled to enter exceeds the number of genuine users, it is determined that there is tailgating, and the radio wave emitting/receiving means detects the arrival angle of the position specifying radio wave from the wearable terminal. Functions as an angle detection means, and the position specifying radio wave is a response radio wave emitted by the wearable terminal in response to an emitted radio wave originating from the wearable terminal or a second emitted radio wave originating from the radio wave emitting/receiving means. In at least one of the above, the angle detecting means includes a plurality of radio wave detecting means, each of the radio wave detecting means are arranged side by side and receives the same position specifying radio wave, and the angle detecting means includes: The arrival angle of the position specifying radio wave is detected based on the time difference between when each of the radio wave detecting means receives the position specifying radio wave, and the position specifying means detects the arrival angle of the position specifying radio wave based on the position where the radio wave emitting/receiving means is provided and the arrival angle. , the position of the wearable terminal is specified, tailgating is determined, and the position of the wearable terminal is specified.

The biometric information acquisition means obtains the user's biometric information at the entrance to the controlled area, and compares the user's biometric information with the biometric determination information stored in the biometric information storage means to determine whether or not the user is a genuine user. The "entrance/exit" may be a space in the front room of a clean room, but does not need to be a closed space. Since it is determined whether the user is a genuine user in front of the door from the front room to the control area, unauthorized persons cannot impersonate genuine users.

The entrance management system may be an information processing device (hereinafter referred to as a PC) such as a PC/server, but is not limited to it, and may also be a cloud server or dedicated equipment. The biometric information may be obtained from a wearable terminal in contact with the person's skin or from a video of the person taken at an entrance/exit.

The biometric information acquisition means is preferably a wearable terminal that can continuously acquire biometric information, but biometric information may also be acquired by visually observing the user's movement characteristics and the like. In the case of a wearable device, if it is a skin-contact device, it is sufficient to use an optical sensor to obtain pulse waves, patterns formed by veins and blood vessels, patterns formed by the opening and arrangement of pores, patterns of skin pigmentation, etc. . If it is a spectacle type, the iris may be acquired by an optical sensor or the like. If the device is a waist-mounted device, the user's motion may be acquired by an acceleration sensor, gyro sensor, or the like.

On the other hand, when a user's walking posture is photographed at the entrance to a managed area and the user is determined by gait appraisal, a video showing the user's walking posture is recorded by the biological information acquisition means formed by the processing means of the PC. The user may be determined by the user determination means by analyzing the motion characteristics that constitute biological information. Of course, when assessing a person's gait, the space at the entrance should be made longer.

The biometric information storage means stores biometric determination information according to the type of biometric information acquisition means. The user determination means compares the acquired biometric information with the biometric determination information and determines whether or not the user is a genuine user who has been registered in advance. The number of genuine users obtaining means obtains the number of users determined to be genuine users, and uses the number as the number of genuine users. When users are determined by individual wearable terminals, the PC may acquire the determination results from the wearable terminals and the number of genuine users may be acquired by the PC.

The means for obtaining the number of persons scheduled to enter the controlled area uses an image obtaining means to photograph persons scheduled to enter the area at the entrance to the controlled area, and analyzes the photographed images using a known image analysis means. Obtained. The tailgating prevention means determines the presence or absence of tailgating based on the number of people scheduled to enter, which is obtained immediately before the entrance, so that tailgating can be correctly determined.

Images for analysis may be acquired using an optical camera, a thermography camera, or the like. Using the acquired analysis image, one of the processing means of the admission management system connected to the network is made to function as an image acquisition means, and an image of the visitor at the entrance/exit is acquired. Then, the processing means of the PC is made to function as an image analysis means, and the obtained analysis image is analyzed in the same manner as a known surveillance camera, and the number of people scheduled to enter the entrance/exit is obtained.

When the wearable terminal that has been determined to be a genuine user is removed, the continuity of the wearing state is interrupted, and the wearable terminal is handed over to another person, the wearable terminal becomes non-functional. As a result, a user who is continuously wearing a wearable terminal at the entrance/exit can be determined to be a genuine user in a short time, so that entry by impersonation can be efficiently prevented.

The angle detecting means may specify the arrival angle of the radio wave using, for example, a direction detection function based on the Angle of Arrival method (hereinafter referred to as AoA method) functioned in Bluetooth (registered trademark) 5.1. The angle detection means includes a plurality of radio wave detection means arranged in line. Since the radio wave detection means are arranged side by side, the angle detection means can detect the arrival angle of the position specifying radio wave based on the time difference between the reception times of the respective radio wave detection means.

The number of angle detection means is not limited. When a plurality of sensors are installed, it is sufficient to specify the intersection position of a plurality of angles of arrival, and when one is installed, it is sufficient to specify a position at the height of a person's waist in the direction of the angle of arrival. The position specifying radio wave can be either an active method in which the wearable terminal emits a radio wave as a starting point, or a passive method in which the wearable terminal transmits a response radio wave in response to a second emitted radio wave transmitted from the radio wave emitting/receiving means as a starting point. It's okay. Transmitting radio waves and response radio waves may be mixed by changing the frequency and waveform of the radio waves.

According to the first invention, immediately before a user enters a managed area, it is determined whether or not the user is a genuine user based on biometric information, and in addition to preventing impersonated entry, the number of genuine users and the number of people scheduled to enter are determined. The presence or absence of tailgating is determined by comparing the following. As a result, it is possible to allow only users who are permitted to enter, and it is possible to manage entrance by impersonation and tailgating, which is an advantageous effect that has not been seen before.

Further, the angle detection means provided in the radio wave emitting/receiving means detects the arrival angle of the position specifying radio wave from the wearable terminal, thereby specifying the position of the wearable terminal. Thereby, the position of the genuine user can be specified with high accuracy, and when a state of tailgating is recognized, it is possible to specify the genuine user who is about to be tailgated.

A second invention of the present invention is the entrance management system of the first invention, further including a temporary tag, and the temporary tag, like the wearable terminal, transmits the position specifying radio wave, and the angle detection means The radio wave emitting/receiving means is provided so that the arrival angle of the position specifying radio wave is detected based on the time difference between when each of the radio wave detecting means receives the position specifying radio wave from the temporary tag, and the position specifying means is provided with the radio wave emitting/receiving means. The present invention is characterized in that the position of the temporary tag is specified based on the position and the angle of arrival.

According to the second invention, even if a wearable terminal and a temporary tag are present together, the positions of the wearable terminal and the temporary tag can be specified. A temporary tag is a wireless tag issued to a person authorized to enter, such as an inspector or auditor. The form of the wireless tag is not limited, and may be, for example, an IC card-type RFID tag, a Bluetooth (registered trademark) tag, or the like.

Although the communication standards for the temporary tag and the wearable terminal may be unified, it is preferable to use different communication standards. If the wearable terminal and the temporary tag are set to different communication standards, it is easy to distinguish a temporary authorized person carrying a temporary tag from a genuine user. According to the second invention, it is possible to manage the entrance of authorized users other than genuine users.

A third aspect of the present invention is an admission management system for managing entrance to a controlled area, which includes a wearable terminal, a means for acquiring the number of people scheduled to enter, a means for acquiring the number of genuine users, a tailgating determination means, and a position specifying means. and radio wave emitting/receiving means arranged in three or more places in a triangle, the wearable terminal continuously acquires biometric information of the user, and biometric information and biometric determination. Functions as a user determination means for determining whether the user is a genuine user by comparing information with the user, and a biometric information storage means for storing biometric determination information of the genuine user in advance, and the number of expected admission obtaining means, image acquisition means and image analysis means, the image acquisition means is provided at the entrance to the managed area, the radio wave emitting/receiving means is provided in an area where radio waves can be emitted and received with the wearable terminal; The analysis means analyzes the visitor image acquired by the image acquisition means and acquires the number of people scheduled to enter the entrance, and the biometric information acquisition means acquires the biological information of users entering the controlled area at the entrance. the user determination means compares the biometric information with the biometric determination information to determine whether the user is an authorized authentic user; and the authentic user number acquisition means acquires the number of authentic users. The tailgating determination means determines that there is no tailgating when the number of people scheduled to enter and the number of genuine users is the same, and when the number of people scheduled to enter exceeds the number of genuine users, the tailgating determination means determines that there is no tailgating. The radio wave emitting/receiving means receives a position specifying radio wave from the wearable terminal, and the position specifying radio wave is an emitted radio wave originating from the wearable terminal or originating from the radio wave emitting/receiving means. at least one of the response radio waves emitted by the wearable terminal in response to the second emitted radio wave, the radio wave emitting/receiving means also functions as a radio wave measuring means, and the radio wave measuring means receives the radio waves of the position specifying radio wave. The intensity value or the reception time is measured, and the position specifying means specifies the position of the wearable terminal based on the three or more received radio field intensity values or the reception time, and tailgating is determined. It is also characterized in that the location of the wearable terminal is specified.

According to the third invention, the radio wave emitting/receiving means installed at three or more places forming a triangle receive the position specifying radio wave from the wearable terminal and measure the radio field intensity value or reception time. . The position specifying means draws an arc with a radius corresponding to the radio field strength values measured by the radio wave emitting/receiving means at three or more locations, with the position of the radio wave emitting/receiving means as the center, and determines the intersection point. All you have to do is specify the location. The radius may be made proportional to the reception time and inversely proportional to the radio field intensity value.

The position specifying radio wave is preferably an active method in which the wearable terminal is used as a starting point to transmit the radio wave, but is not limited thereto. The communication standard of the radio wave emitting/receiving means is preferably Bluetooth (registered trademark), RFID, etc., but is not limited thereto. Since radio wave emitting/receiving means are placed at three or more locations at the entrance/exit of the controlled area, even if multiple authentic users are located close to each other at the entrance/exit, each authentic user can be easily distinguished, and the location of the authentic user can be easily distinguished. can be identified with high accuracy.

A fourth aspect of the present invention is the entrance management system according to the third aspect, further including a temporary tag, and the temporary tag, like the wearable terminal, transmits the position specifying radio wave, and the radio wave measuring means The position specifying means measures the radio field intensity value or reception time of the position specifying radio wave from the temporary tag, and the position specifying means measures the radio field intensity value or the reception time of the position specifying radio wave from the temporary tag, and the position specifying means measures the radio field intensity value or the reception time of the position specifying radio wave from the temporary tag. It is characterized by specifying the location of.

The wireless tag method of the temporary tag is not limited, and may be, for example, an IC card-type RFID tag, a Bluetooth (registered trademark) tag, or the like. According to the fourth invention, even if a wearable terminal and a temporary tag coexist, the positions of the wearable terminal and the temporary tag can be specified.

A fifth invention of the present invention is the admission management system according to any one of the first to fourth inventions, further comprising a permissible visitor number setting means, a visitor number acquisition means, and an admission restriction means. The visitor number setting means sets the permissible number of visitors who can stay in the managed area, the visitor number obtaining means obtains the number of visitors staying in the managed area, and the admission restriction means sets the allowable number of visitors who can stay in the managed area. The feature is that the entrance door is not opened when the number of guests is not less than the permissible number of guests.

The number of visitors in a managed area can be obtained by analyzing captured images. The permissible number of residents may be set according to the characteristics and scale of the managed area. For example, in the case of a clean room in a pharmaceutical factory, the number of people staying in the room should be set to a permissible number that does not compromise sterility, in compliance with the revised PIC/S. In the case of a two-shift factory with daytime and night shifts, the number of allowable visitors may be increased by a predetermined work handover time.

According to the fifth invention, the entrance door can only be opened when the number of residents in the managed area is smaller than the permissible number of residents in the managed area, so the number of guests exceeds the permissible number of residents. Never.

A sixth aspect of the present invention is the admission management system according to the fifth aspect, further comprising a means for acquiring the number of people planning to stay, and the means for acquiring the number of people planning to stay, the number of people planning to stay, and the number of people planning to stay. When the admission restriction means determines that the total exceeds the permissible number of visitors, a warning is displayed.

According to the sixth invention, a warning is displayed when the sum of the number of people scheduled to enter at the entrance and the number of people staying in the managed area exceeds the permissible number of people staying. According to the sixth invention, the warning display prompts only those selected from among the plurality of prospective visitors to enter, thereby preventing the number of visitors from exceeding the permissible number of visitors.

- According to the first aspect of the present invention, it is possible to allow only users who are permitted to enter, and it is possible to manage entry by impersonation and tailgating, which is an advantageous effect that has not been seen before. Further, since a user who is continuously wearing a wearable terminal at the entrance can be determined to be a genuine user in a short time, it is possible to efficiently prevent entry by impersonation.
-Furthermore, when a state of tailgating is recognized, it is possible to identify the genuine user who is about to be tailgated.

- According to the second aspect of the present invention, it is possible to manage the entrance of authorized users other than genuine users.
- According to the third aspect of the present invention, even if a plurality of genuine users are located close to each other at the entrance/exit, each genuine user can be easily distinguished, and the positions of the genuine users can be specified with high accuracy.
- According to the fourth aspect of the present invention, even if a wearable terminal and a temporary tag are present together, the positions of the wearable terminal and the temporary tag can be specified.

・According to the fifth aspect of the present invention, the entrance door can only be opened when the number of residents in the managed area is smaller than the permissible number of residents in the managed area. The number of participants shall not exceed the number of persons.
- According to the sixth aspect of the present invention, the warning display prompts only those selected from among the plurality of people scheduled to enter to enter, thereby preventing the number of visitors from exceeding the permissible number of visitors. play.

Layout diagram of a clean room (Example 1). Overall flow (Example 1). Block diagram (Example 1). Biometric information acquisition processing flow (Example 1). User determination processing flow (Example 1). Flow of processing for acquiring the number of genuine users (Example 1). Flow of processing for acquiring the number of people scheduled to enter (Example 1). Tailgating determination processing flow (Example 1). Admission restriction processing flow (Example 1). Door opening/closing process flow (Example 1). An explanatory diagram of a position specifying means (Example 1). An explanatory diagram of a position specifying means (Example 1).

The entrance management system 1 authenticates genuine users using biometric authentication at entrances and exits to managed areas, and compares the number of people who are planning to enter with the number of genuine users to prevent impersonation from entering and sharing the managed area. This is to prevent people from entering with their children. In addition, we set a permissible number of guests in a managed area, and if the number exceeds the permissible number of guests when all the people scheduled to enter have entered, a warning will be displayed to those planning to enter, and the opening and closing of the door will be restricted. .

In Embodiment 1, an entrance management system 1 that manages entrance to the clean room and management of stay in the clean room will be described with reference to FIGS. 1 to 12, using a clean room as an example. FIG. 1 shows a plan view of the clean room, FIG. 2 shows the overall flow, and FIG. 3 shows a block diagram of the entrance management system 1. 4 to 10 show the main flow, and FIGS. 11 and 12 explain an example of locating an authentic user at an entrance/exit.

The clean room 10 consists of an antechamber 20 that serves as an entrance to the clean room, and a second clean room 30 that is further divided by a partition wall within the clean room. A door 40 whose opening/closing is controlled by the entrance/exit management system 1 is provided between the front room and the clean room, and between the clean room and the second clean room. A user 50 indicated by a broken line is wearing a wearable terminal 60, and a companion 51 is behind the user. Further, the front room 20 is provided with a warning display 83 that lights up when the number of people staying in the clean room becomes excessive.

The front room 20 is provided with an optical camera for photographing people scheduled to enter the room and a radio wave emitting/receiving means. In the clean room, an image acquisition means 70 formed by an optical camera and a radio wave emitting/receiving means 80 are provided at appropriate intervals so as not to create a blind spot. Further, the second clean room 30 is also provided with an image acquisition means 70 formed by an optical camera for photographing persons scheduled to enter the room, and a radio wave emitting/receiving means 80. The PC 90 on which the entrance management system 1 is executed sends and receives information through the image acquisition means 70, the radio wave emitting/receiving means 80, the wearable terminal 60, and the communication means 100 (see FIG. 3).

After the user enters the front room 20, the entrance management system 1 performs user biometric information acquisition processing (S100), user determination processing (S200), genuine user number acquisition processing (S300), and number of expected admission number acquisition processing (S400). ), tailgating determination processing (S500), entry restriction/door opening restriction processing (S600), and entry restriction/warning processing (S700) (see FIG. 2), the door 40 to the clean room is opened. The door 40 is closed after a person scheduled to enter who satisfies the requirements, for example, a genuine user and a temporary authorized person who has a temporary tag, enters.

When the compartments are small, such as the front room 20 and the second clean room 30, only one image acquisition means 70 and one radio wave emitting/receiving means 80 are required, but in a clean room 10 with a large compartment, multiple users can stay. Therefore, a plurality of image acquisition means 70 and radio wave emitting/receiving means 80 may be installed depending on the size of the division.

Here, the admission management system 1 will be explained with reference to the overall flow shown in FIG. 2, the block diagram shown in FIG. 3, and each execution step shown in FIGS. 4 to 10. FIG. 3 shows a block diagram of the admission management system 1. As shown in FIG. The entrance management system 1 includes a processing means and a storage means formed by a PC 90, an image acquisition means 70 formed by an optical camera/video camera, etc., a temporary tag 110, a radio wave emitting/receiving means 80, and a communication means 100 as essential components.

In the case of gait appraisal in which biological information is identified from image information, the image acquisition means 70 acquires a video showing the walking posture, and the PC 90 acquires the video via the communication means 100 to proceed to user determination. When the terminal 60 is used as a biometric authentication means, the storage means of the wearable terminal 60 is used as a biometric information storage means, and the processing means of the wearable terminal 60 performs user determination.

Specifically, for example, in the case of gait appraisal, biometric authentication may be performed by the processing means of the PC 90, and in the case of user determination based on pulse waves, patterns formed by veins, etc., the wearable terminal 60 performs biometric authentication. The processing means may perform biometric authentication. To facilitate understanding, in the block diagram shown in FIG. 2, it is indicated in parentheses that the division of functions changes depending on the aspect of biometric authentication.

In the entrance management system 1, an optical sensor provided in the wearable terminal 60 serves as biological information acquisition means. Pulse waves, patterns formed by veins, and the like may be acquired as biological information, but the present invention is not limited thereto, and patterns formed by the opening and arrangement of pores may be acquired as biological information. The storage means of the wearable terminal stores biometric determination information.

By comparing the biometric information acquired by the optical sensor with the biometric determination information read from the storage means, it is determined whether the user 50 wearing the wearable terminal 60 is a genuine user who was previously scheduled to wear the wearable terminal. The user determining means determines that the user is a genuine user, and if the user is a genuine user, the radio wave emitting and receiving function of the wearable terminal 60 is enabled.

In the case where the active method is used to transmit a radio wave as a position specifying radio wave starting from the wearable terminal 60/temporary tag 110, in the passive method, the wearable terminal 60/temporary tag 110 is used as a starting point to transmit the second emitted radio wave from the radio wave emitting/receiving means 80. There are two ways in which the temporary tag 110 transmits a response radio wave as a position specifying radio wave, and these may be used in combination. In order to facilitate understanding, in the block diagram shown in FIG. 2, it is indicated in parentheses that the functional assignment of the configuration changes depending on the mode of transmitting the position specifying radio waves.

Now, the entrance management system 1 includes a PC 90, a communication means 100, an image acquisition means 70, a wearable terminal 60, a temporary tag 110, and a radio wave emitting/receiving means 80. The PC 90 includes a processing means 91 and a storage means 92. The processing means 91 includes a means for acquiring the number of expected visitors, a means for acquiring the number of genuine users, a tailgating determination means, a position specifying means, a means for setting the number of permissible staying guests, a means for acquiring the number of staying guests, and an admission restriction means for restricting the opening of the door. , functions as means for predicting the number of people planning to stay, and means for restricting entry by issuing a warning (see Figure 2).

In the case of authentication based on gait, the processing unit 91 functions as a biometric information acquisition unit from an image, and functions as a user determination unit by comparing the information with biometric determination information based on the gait. The number of people planning to enter the event means obtains the number of people planning to enter by causing the image analysis device to analyze the image acquired by the image acquisition device.

The storage means 92 functions as a biological information storage means for storing biological determination information, a temporary tag information storage means, and a radio wave transmitter/receiver information storage means. The biological information storage means stores radio wave information such as a wearable device ID and the frequency and waveform of radio waves emitted by the wearable device. Furthermore, when the living body determination is based on gait, living body determination information is stored.

The temporary tag information storage means stores the temporary tag ID provided to the temporary permit person who is permitted to enter and the radio wave information emitted by the temporary tag. The radio wave emitting/receiving device information storage means stores the radio wave emitting/receiving device ID, the installation position of the radio wave emitting/receiving device, and the radio wave information emitted by the radio wave emitting/receiving device.

The image acquisition means 70 is comprised of an optical camera, a video camera, etc., and acquires images of the persons (user 50, companion 51) entering the front room 20. The photographed image is acquired by the processing means 91 of the PC via the communication means 100, and the number of people planning to enter the apparatus is caused to obtain the number of people planning to enter, which is formed by the processing means. Further, when the biometric information is a gait, the biometric information acquisition means of the processing means 91 acquires the biometric information formed by the movement characteristics of the visitor from the moving image forming the image, and is stored in the biometric information storage means. The user determination means is made to determine the user by comparing it with the living body determination information.

The processing means of the wearable terminal 60 functions as a biometric information acquisition means via a user determination means and an optical sensor. The storage means of the wearable terminal functions as a biometric information storage means and stores user determination information of a genuine user.

Furthermore, the wearable terminal 60 has a function of transmitting and receiving position-specific radio waves. It is possible to transmit a transmission radio wave as a position specifying radio wave in an active system, and it is also possible to receive a second transmission radio wave from the radio wave emitting/receiving means in a passive system and transmit a response radio wave accordingly. The wearable terminal 60 communicates the transmitted radio wave, the second transmitted radio wave, and the response radio wave with the radio wave emitting/receiving means 80 to cause the radio wave emitting/receiving means 80 to acquire the position of the wearable terminal 60 .

The temporary tag 110 may be an IC card or the like equipped with a wireless tag such as an RFID tag or a Bluetooth (registered trademark) tag, and similarly to the wearable terminal 60, the temporary tag 110 transmits a position specifying radio wave to the radio wave emitting/receiving means 80. The radio wave emitting/receiving means 80 is caused to acquire the position of the temporary tag 110 through communication.

As an example, the radio wave emitting/receiving means 80 includes an angle detecting means 81 . The angle detection means 81 has a plurality of radio wave detection means 82, 82, . The arrival angle is detected (see FIG. 12).

The angle detection means 81 analyzes the phase difference and arrival angle of the radio waves received by each radio wave detection means 82 and generated according to the spacing between the radio waves, and obtains the position of the wearable terminal 60. Of course, if the radio wave information formed by the frequency and waveform of the radio waves emitted by each wearable terminal is changed, it is possible to cope with a large number of wearable terminals. The position of the temporary tag 110 may also be acquired in the same manner.

Here, the execution flow by the processing means will be specifically explained with reference to FIGS. 4 to 10. Figure 4 shows the flow of biometric information acquisition processing, Figure 5 shows the flow of user determination processing, Figure 6 shows the flow of processing to acquire the number of genuine users, Figure 7 shows the flow of processing to acquire the number of people scheduled to enter, and Figure 8 shows the processing flow of FIG. 9 shows an entry restriction/door opening restriction processing flow, and FIG. 10 shows an entry restriction/warning processing flow.

First, in the front room 20, biometric information acquisition processing (S100) is performed to obtain biometric information of the person scheduled to enter (see FIG. 4). In the biometric information acquisition process, the type of biometric determination is determined, and a flag is assigned according to the type. When determining a living body by gait appraisal that does not require wearing a wearable terminal, it is set in advance to perform user determination by gait appraisal. Biometric authentication may be performed only by gait assessment, or the setting of gait assessment may be omitted and biometric authentication may be performed only by the wearable terminal.

Gait appraisal identifies a person based on movement characteristics unique to the person, so biometric information is constantly acquired. If the wearable terminal is removed at the entrance/exit, the device ID of the wearable terminal is no longer transmitted, and continuity is interrupted, so that the wearable terminal is determined to be an "other person." First, in step 110, it is determined whether or not biometric authentication is based on gait appraisal. If YES, the process proceeds to step 150, where a gait appraisal flag, for example "1", is assigned (S150), and step 170. The process proceeds to user determination by the PC processing means (S170). In the case of NO, the process proceeds to step 120, and it is determined whether or not biometric authentication is performed by a wearable terminal (S120).

In the case of YES in step 120, the process proceeds to step 130, where a flag of the wearable terminal, for example "2", is assigned (S130), and the process proceeds to user determination by the wearable terminal in step 160 (S160). In the case of NO, the process proceeds to step 140, where a flag for a person other than the biometric judge, for example "3", is assigned (S140), and the process proceeds to user judgment by the PC processing means in step 170 (S170). In the biometric information acquisition process (S100), a flag of "1", "2", or "3" is given to the person scheduled to enter, and the process proceeds to the user determination process of step 200).

In step 200, in the user determination process, for the person who is scheduled to enter with flag "2", each process is executed by the wearable terminal from S210 to S240, and each process is executed by the processing means 91 of the PC from S250 to S280. be done. For those scheduled to enter the venue to which the flags "1" and "3" have been assigned, each process from S210 to S280 is executed by the processing means 91 of the PC (see FIG. 5).

Specifically, in the user determination process (S200), biometric determination information is first read out from the storage means of the PC or wearable terminal in step 210 according to the value of the flag (S210), and then in step 220. Biometric information corresponding to the value of the flag is acquired (S220), and the process advances to step 230 to determine the biometric information (S230).

In step 230, the user's biometric information and biometric determination information are compared according to the value of the flag, and it is determined whether or not they are identical (S230). If YES, it is determined that the person scheduled to enter is a genuine user (S240), and the process proceeds to step 280. If NO, the process advances to step 250 to determine whether a temporary tag is present. If YES in step 250, the process proceeds to step 260, and it is determined that the person scheduled to enter is a temporary permitted person (S260).

If NO in step 250, the process proceeds to step 270, and the person scheduled to enter is determined to be another person (S270). After the person scheduled to enter is determined to be a genuine user (S240), a temporary authorized person (S260), and another person (S270), the process proceeds to step 280, and the PC 90 acquires the user determination result (S280). . If the authentic user determination is performed using a wearable terminal, the PC 90 may be made to acquire the authentic user determination result via the communication means 100.

After the user determination process, the process proceeds to step 300, a process for acquiring the number of genuine users (see FIG. 6). First, in step 310, it is determined whether a wearable wearer's flag, for example "2", is assigned. If YES, the process proceeds to step 320, and the number of genuine users of the wearable wearer is acquired (S320). If NO, the process advances to step 330, and it is determined whether a flag of the gait appraiser, for example, "1", has been assigned (S330); if YES, the process advances to S340, and the number of genuine users of the gait appraiser is obtained. (S340).

From step 320 and step 340, the process proceeds to step 350, and the number of genuine users by the wearable wearer and the gait appraiser is added up to obtain the number of genuine users (S350). In step 330, if the gait appraiser's flag, e.g., "1", is not assigned, or specifically, if the flag for someone other than the biometric appraiser, for example, "3" is assigned, the process proceeds to step 360. , the number of genuine users is treated as not being acquired, and the genuine user number acquisition processing is ended.

In the process of acquiring the number of people scheduled to enter in step 400, in step 410, the image acquisition means 70 (see FIG. 1) takes an image of the entire front room 20 forming the entrance and exit (S410), and in step 420, the communication means 100 The image acquisition means of the processing means 91 of the PC 90 is caused to acquire an image of the entrance/exit (S420). Proceeding to step 430, the number of people scheduled to enter the front room 20 is acquired by the known image analysis means operated by the processing means 91 (S430).

Although the order of the genuine user count acquisition process (S300) and the number of scheduled admission person acquisition processes (S400) is not limited, the process proceeds to the tailgating determination process of step 500 after passing through these steps (S500). In the tailgating determination process, the number of people scheduled to enter that has been acquired in the process for acquiring the number of people scheduled to enter (S400) is acquired in step 510, and the number of genuine users that has been acquired in the process for acquiring the number of genuine users (S300) is acquired in step 510. is acquired in step 520 and the process proceeds to step 530.

In step 530, it is determined whether the number of people scheduled to enter and the number of genuine users are the same (S530), and if YES, the process proceeds to step 540, where it is determined that there is no tailgating (S540), and the process proceeds to step 550, where management is performed. The door to the area is unlocked and the door can be opened and closed (S550). If NO, the process proceeds to step 560, where it is determined that "tailgating is present" (S560), and the door is kept locked and the opening of the door is restricted (S570).

In steps 600 and 700, the number of people staying in the managed area is obtained and entry to the managed area is restricted. First, before starting the entry restriction/door opening restriction process in step 600, a setting process is performed in step 601 to set the permissible number of visitors who can stay in the managed area (S601). In order to accommodate PIC/S, the number of permissible visitors may be set, or the number of permissible visitors may be changed depending on the time zone.

In the entry restriction/door opening restriction processing (S600) of step 600, first, the image acquisition means 70 photographs the number of guests staying in the clean room 10 forming the managed area, the image is acquired by the PC 90, and the processing means 91 determines the number of guests staying in the clean room 10 forming the managed area. By image analysis by the number acquisition means, the number of people staying in the clean room is acquired in step 610, similarly to the number of people scheduled to enter the room (S610), and the process proceeds to step 620.

In step 620, it is determined whether the number of guests in the clean room (S610) is less than the allowable number of guests (S620). If YES in step 620 and there is an available slot for the person scheduled to enter, the door 40 to the clean room 10 is unlocked so that it can be opened. If NO, the door remains locked and opening is restricted (S630).

The admission restriction/warning process (S700) in step 700 shows the process when the sum of the number of people scheduled to enter and the number of staying guests exceeds the permissible number of staying guests. First, in step 710, the number of people scheduled to enter (S430) obtained in advance is obtained (S710). The total sum of the number of people scheduled to enter (S430) and the number of staying guests obtained in step 720 (S610) is obtained (S720), and the process proceeds to step 730.

In step 730, it is determined whether the total exceeds the allowable number of visitors (S730). In the case of YES, the process proceeds to step 740, and if all the people scheduled to enter are allowed to enter, the allowable number of guests will be exceeded, so a "warning display 83" is lit in the front room 20 (S740). . When the "warning display 83" is lit, only the number of people within the margin can be selected and entered. If NO, proceed to step 750. In step 750, even if all the people scheduled to enter the clean room enter the clean room, the allowable number of guests will not be exceeded, so the door can be opened and the clean room can enter (S750).

Here, two examples of specifying the positions of the wearable terminal and the temporary tag in the front room 20 will be described with reference to FIGS. 11 and 12. Starting from the wearable terminal, a radio wave indicating the device ID may be transmitted as a location specifying radio wave in an active manner, and the wearable terminal receives the second radio wave transmitted by any of the radio wave emitting/receiving means, and the wearable terminal may passively transmit a response radio wave indicating the device ID as a position specifying radio wave.

In order to make it easier to understand, FIG. 11 shows an example in which the position is specified only by the reception time when the radio wave emitting/receiving means at three locations receives the transmitting radio wave or response radio wave indicating the device ID emitted by the wearable terminal. There is. It goes without saying that the location may be specified based on the radio wave intensity that attenuates depending on the distance. FIG. 11(A) shows an active method, and FIG. 11(B) shows a passive method.

In Example 1, radio wave emitting/receiving means 80α, 80β, and 80γ arranged at three locations in a triangular shape each receive a position specifying radio wave and function as a radio wave measuring means. FIG. 11(A) is an explanatory diagram of an active method in which a radio wave indicating the device ID (see the one-dot chain arrow) is used as a position specifying radio wave and is transmitted from the wearable terminal as a starting point. Figure 11(B) shows a wearable terminal transmitting a response radio wave (see broken line arrow) indicating the device ID as a position specifying radio wave in response to a second radio wave (see solid line arrow) emitted from the radio wave emitting/receiving means. An explanatory diagram of a passive method is shown. Note that the radio wave emitting/receiving means does not need to be installed inside the doorway, and may be placed outside the doorway as long as it is possible to emit and receive radio waves.

Regardless of whether the location identifying radio wave indicating the device ID is an outgoing radio wave or a response radio wave, the reception time until it reaches the radio wave measuring means located at three locations depending on the position of the wearable terminal and the radio wave emitting/receiving means. are different. Centering on the point where the radio wave emitting/receiving devices 80α, 80β, and 80γ are placed, draw an arc with a radius corresponding to the reception time of each radio wave, and draw three arcs (Fig. 11(A), Fig. 11(B)). The position of the wearable terminal can be specified by calculating the position of the intersection of (see).

When the radio wave measuring means specifies the position based on the strength of the received radio waves, the closer the distance, the greater the radio field strength value of the received radio waves, so the position of the intersection of the three arcs is calculated using the reciprocal of the radio field strength value. This allows the location of the wearable terminal to be specified.

Next, a second example in which the position of a wearable terminal is specified using only one radio wave emitting/receiving means will be described with reference to FIG. 12. In FIG. 12 as well, a transmission radio wave or a response radio wave indicating the device ID is transmitted from the wearable terminal, but for ease of understanding, an example in which the transmission radio wave is transmitted from the wearable terminal will be described.

A radio wave emitting/receiving device serving as the radio wave emitting/receiving means functions as an angle detecting means. The angle detection means includes radio wave detection means a, b, . . . arranged side by side (see FIGS. 12A and 12B). In FIG. 12, the distance of the radio wave detection means is exaggerated for ease of understanding. Each radio wave detection means receives a transmitted radio wave as a position specifying radio wave at a different position in one radio wave transmitter/receiver.

One transmitted radio wave indicating the device ID emitted from the wearable terminal is detected by each radio wave detection means with a time difference. Specifically, since the reception position of the radio wave detection means a is closer than that of the radio wave detection means b, there is a time difference (of radio waves) between the reception time Ta of the radio wave detection means a and the reception time Tb of the radio wave detection means b. phase difference) has occurred (see FIG. 12(C)).

The angle detecting means 81 (see FIG. 3) detects whether the position specifying radio wave is incident on the radio wave emitting/receiving means based on the time difference and the arrangement interval of the radio wave detecting means, for example, based on the direction detection function of Bluetooth (registered trademark) 5.1. detect the angle of arrival. The arrival angle is an azimuth angle consisting of a vertical elevation/depression angle and a horizontal direction angle.

The PC 90 is caused to acquire the terminal ID, arrival angle, and radio wave emitting/receiving device ID indicated in the position specifying radio wave from the radio wave emitting/receiving means via the communication means. The position of the radio wave emitting/receiving device ID stored in the radio wave emitting/receiving device information storage means of the storage means 92 is retrieved, and the wearable terminal is determined from the position of the radio wave emitting/receiving device ID and the acquired angle of arrival by the position specifying means formed by the processing means 91. All you have to do is specify the location. If there is only one radio wave transmitter/receiver, the position at the waist height of the person in the direction of the above-mentioned arrival angle may be specified as the position of the wearable terminal.

Both Examples 1 and 2 are explained using wearable terminals, but the same applies to temporary tags. Moreover, although the active method in which the wearable terminal transmits radio waves as a starting point has been described, it goes without saying that the same applies to the passive method. By being able to specify the position of the wearable terminal, it is possible to track which genuine user the companion 51 appearing in the image taken by the image acquisition means is attempting to accompany.

(others)
- The embodiments disclosed herein are illustrative in all respects and should not be considered restrictive. The technical scope of the present invention is not limited to the above description, but is indicated by the claims, and it is intended that all changes within the meaning and range equivalent to the claims are included.
- Needless to say, the use of the controlled area to which the entrance control system 1 is applied is not limited to clean rooms.
- The admission management system does not need to execute all the flows shown in the embodiments; it is sufficient to execute the flows indicated by the claims, and within the meaning and range equivalent to the claims.
- The admission management system 1 is not limited to a PC, and may be processed in the cloud.

1...Admission management system,
10...Clean room, 20...Ante room, 30...Second clean room, 40...Door,
50... User, 51... Companion, 60... Wearable terminal, 70... Image acquisition means,
80, 80α, 80β, 80γ...Radio wave emitting/receiving means, 81...Angle detection means,
82...Radio wave detection means, 83...Warning display,
90...PC, 91...processing means, 92...storage means,
100... Communication means, 110... Temporary tag

Claims (6)

In an admission control system that controls entry to a controlled area,
Including a wearable terminal, a means for acquiring the number of people scheduled to enter, a means for acquiring the number of genuine users, a tailgating determination means, a position specifying means, and a radio wave emitting and receiving means,
The wearable terminal includes a biometric information acquisition unit for continuously acquiring biometric information of the user, and a user determination unit for comparing the biometric information and biometric determination information to determine whether the user is a genuine user. Functions as a biometric information storage means for storing biometric determination information of a genuine user in advance,
The means for acquiring the number of people scheduled to enter is an image acquisition means and an image analysis means,
The image acquisition means and the radio wave emitting/receiving means are provided at the entrance/exit to the managed area,
The image analysis means analyzes the image of visitors acquired by the image acquisition means and acquires the number of people scheduled to enter the entrance/exit,
the biometric information acquisition means obtains biometric information of a user entering the controlled area at the entrance;
The user determination means compares the biometric information with the biometric determination information to determine whether the user is an authorized authentic user;
The number of genuine users obtaining means obtains the number of genuine users;
The tailgating determination means,
When the number of people scheduled to enter and the number of genuine users is the same, it is determined that there is no tailgating, and when the number of people scheduled to enter exceeds the number of genuine users, it is determined that there is tailgating,
The radio wave emitting/receiving means functions as an angle detection means for detecting an arrival angle of a position specifying radio wave from the wearable terminal,
The position specifying radio wave is at least one of a transmitted radio wave originating from the wearable terminal, or a response radio wave emitted by the wearable terminal in response to a second transmitted radio wave originating from the radio wave emitting/receiving means,
The angle detection means includes a plurality of radio wave detection means,
Each of the radio wave detection means is arranged side by side and receives the same position specifying radio wave,
The angle detecting means detects the arrival angle of the position specifying radio wave based on the time difference between when each of the radio wave detecting means receives the position specifying radio wave,
The position specifying means specifies the position of the wearable terminal based on the position where the radio wave emitting/receiving means is provided and the angle of arrival,
Tailgating is determined and the position of the wearable terminal is specified.
An admission management system characterized by: Furthermore, including temporary tags,
The temporary tag transmits the position specifying radio wave similarly to the wearable terminal,
The angle detecting means detects the arrival angle of the position specifying radio wave based on the time difference between when each of the radio wave detecting means receives the position specifying radio wave from the temporary tag,
The position specifying means specifies the position of the temporary tag based on the position where the radio wave emitting/receiving means is provided and the angle of arrival.
The admission management system according to claim 1, characterized in that: In an admission control system that controls entry to a controlled area,
It includes a wearable terminal, a means for acquiring the number of people scheduled to enter, a means for acquiring the number of genuine users, a tailgating determination means, a position specifying means, and three or more radio wave emitting and receiving means arranged in a triangle. ,
The wearable terminal includes a biometric information acquisition unit for continuously acquiring biometric information of the user, and a user determination unit for comparing the biometric information and biometric determination information to determine whether the user is a genuine user. Functions as a biometric information storage means for storing biometric determination information of a genuine user in advance,
The means for acquiring the number of people scheduled to enter is an image acquisition means and an image analysis means,
The image acquisition means is provided at an entrance to the managed area, and the radio wave emitting and receiving means is provided in an area where radio waves can be emitted and received with the wearable terminal,
The image analysis means analyzes the image of visitors acquired by the image acquisition means and acquires the number of people scheduled to enter the entrance/exit,
the biometric information acquisition means obtains biometric information of a user entering the controlled area at the entrance;
The user determination means compares the biometric information with the biometric determination information to determine whether the user is an authorized authentic user;
The number of genuine users obtaining means obtains the number of genuine users;
The tailgating determination means,
When the number of people scheduled to enter and the number of genuine users is the same, it is determined that there is no tailgating, and when the number of people scheduled to enter exceeds the number of genuine users, it is determined that there is tailgating,
The radio wave emitting/receiving means receives a position specifying radio wave from the wearable terminal,
The position specifying radio wave is at least one of a transmitted radio wave originating from the wearable terminal, or a response radio wave emitted by the wearable terminal in response to a second transmitted radio wave originating from the radio wave emitting/receiving means,
The radio wave emitting/receiving means also functions as a radio wave measuring means,
The radio wave measuring means measures the radio field intensity value or reception time of the position specifying radio wave,
The position specifying means specifies the position of the wearable terminal based on the three or more received radio field intensity values or the reception time,
Tailgating is determined and the position of the wearable terminal is specified.
An admission management system characterized by: Furthermore, including temporary tags,
The temporary tag transmits the position specifying radio wave similarly to the wearable terminal,
The radio wave measuring means measures the radio field intensity value or reception time of the position specifying radio wave from the temporary tag,
The position specifying means specifies the position of the temporary tag based on the three or more radio field intensity values or the reception time,
The admission management system according to claim 3, characterized in that: Furthermore, it includes a means for setting the number of permissible residents, a means for obtaining the number of residents, and an admission restriction means,
The permissible number of guests setting means sets the permissible number of guests who can stay in the managed area,
The number of stayers acquisition means acquires the number of stayers in the managed area,
The entrance restriction means does not open the entrance door when the number of guests is not less than the permissible number of guests.
The admission management system according to any one of claims 1 to 4, characterized in that: Furthermore, it includes a means to obtain the number of people planning to stay,
The number of people planning to stay acquisition means acquires the sum of the number of people planning to enter and the number of people staying,
When the admission restriction means determines that the total exceeds the permissible number of guests, displaying a warning;
The admission management system according to claim 5, characterized in that:

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