JP7553295B2 - Gate System - Google Patents

Description

The embodiment relates to a gate system.

A technology is known in which a camera is installed in the gate device, and images captured by the camera are used to authenticate the user's face and open and close the gate.

JP 2019-114294 A

Incidentally, when a camera is installed at a gate device and authentication is performed, it is necessary to complete the authentication process from when the user's face first appears on the camera until the user reaches the gate device, and to control the opening and closing of the door. For this reason, there is a constraint on the authentication time. Here, for example, if users overlap in the direction of the camera, the face of the user behind is hidden by the user in front, so the user behind cannot be authenticated until the very last moment, and there is a possibility that the authentication process cannot be completed within the limited time. If such a situation occurs, the user will stop at the gate device, preventing smooth entry.
An object of the embodiment of the present invention is to provide a gate system that can quickly and reliably recognize a user.

According to one embodiment, a gate system includes a plurality of gate devices each having a door that defines a passage by a housing and restricts the passage of a user through the passage , a plurality of camera devices that capture images in all directions around each of the gate devices and are arranged so that the capture ranges overlap, and a control device that controls opening and closing of the door based on the capture results of the plurality of capture ranges captured by each of the camera devices. The control device includes an image processing unit that processes images captured by each of the camera devices, and detects the position and face of one or more users present in the capture range of each of the camera devices along with the user's movement over time based on the processing result of this image processing unit, and when the position of the detected user is the entrance of each of the gate devices, if the face of the detected user is included in the face authentication data of a user who is allowed to enter, the door of the gate device corresponding to the position of the detected user is made passable.

FIG. 2 is a diagram showing an example of a control configuration of the gate system according to the first embodiment. FIG. 2 is a diagram showing an example of the configuration of a gate device according to the embodiment; FIG. 2 is a diagram showing an example of the configuration of a camera device according to the embodiment. FIG. 2 is a diagram showing an example of the configuration of an information processing device according to the embodiment. FIG. 2 is a plan view showing an example of the configuration of the gate system according to the embodiment. FIG. 2 is a diagram showing an example of a side surface of the gate apparatus according to the embodiment. 11 is a flowchart showing an example of a user passing process according to the embodiment. 10 is a flowchart showing an example of a door opening/closing process according to the embodiment. 4A and 4B are diagrams showing an example of an image capturing state in which an image of a user is captured according to the embodiment; 4A and 4B are diagrams showing an example of an image capturing state in which an image of a user is captured according to the embodiment; 4A and 4B are diagrams showing an example of an image capturing state in which an image of a user is captured according to the embodiment; 4A and 4B are diagrams showing an example of an image capturing state in which an image of a user is captured according to the embodiment; FIG. 11 is a diagram showing an example of a state in which a height of a user is measured according to the second embodiment. 13A and 13B are diagrams showing an example of a shooting state in which an accompanying user is photographed according to the third embodiment. FIG. 13 is a diagram showing an example of a state in which a plurality of users exist according to the fourth embodiment. FIG. 13 is a diagram showing a modified example of the arrangement of the gate system according to the embodiment. FIG. 13 is a diagram showing a modified example of the arrangement of the gate system according to the embodiment.

The following describes the embodiments with reference to the drawings. Note that the disclosure is merely an example, and the invention is not limited to the contents described in the following embodiments. Modifications that a person skilled in the art can easily conceive are naturally included in the scope of the disclosure. To make the explanation clearer, the drawings may show the size, shape, etc. of each part as a schematic representation modified from the actual embodiment. In multiple drawings, corresponding elements may be given the same reference numerals, and detailed explanations may be omitted.

First Embodiment
FIG. 1 is a diagram showing an example of a network configuration of a gate system 100. As shown in FIG.
1, a plurality of gate devices 10, a plurality of camera devices (detection devices) 20, and an information processing device (control device) 30 are connected via a network. Note that, in this embodiment, a case will be described in which the information processing device 30 is connected to the plurality of gate devices 10 and the plurality of camera devices 20 via a network, but this is not limiting. For example, the information processing device 30 may be housed in any one of the plurality of gate devices 10, and may be connected to the other gate devices 10 and camera devices 20 so as to be able to communicate with them.

FIG. 2 is a diagram showing an example of the configuration of the gate device 10. As shown in FIG.
2, the gate device 10 includes a control unit 11, an interface (I/F) 12, door control units 13 and 14, and doors 15 and 16. The control unit 11 controls each unit in the gate device 10 and communicates with an information processing device 30 via the interface 12. The door control units 13 and 14 control the opening and closing of the doors 15 and 16, respectively. The doors 15 and 16 are doors that regulate the entry and exit (at least entry) of users, and transition between a first position that regulates the entry of users and a second position that permits the entry of users based on the control of the door control units 13 and 14. The arrangement of the doors 15 and 16 will be described later.

FIG. 3 is a diagram showing an example of the configuration of the camera device 20. As shown in FIG.
As shown in Fig. 3, the camera device 20 includes a control unit 21, an interface (I/F) 22, and a photographing unit 23. The control unit 21 controls each unit in the camera device 20. In this embodiment, the photographing unit 23 is an omnidirectional camera that photographs the surroundings in all directions from the location where the omnidirectional camera is installed. Under the control of the control unit 21, the image photographed by the photographing unit 23 is output as image data to the information processing device 30 via the interface 22.

FIG. 4 is a diagram showing an example of the configuration of the information processing device 30.
As shown in FIG. 4, the information processing device 30 includes a control unit 31, an interface (I/F) 32, an image processing unit 33, and a storage unit 34. The control unit 31 controls each unit in the information processing device 30. The interface 32 is connected to a network. Therefore, the control unit 31 can communicate with each of the multiple gate devices 10 via the interface 32, and further receives image data from each of the multiple camera devices 20. The image processing unit 33 performs image processing on the image data received from the camera device 20. In this embodiment, a process of synthesizing image data received from the multiple camera devices is performed, a user included in the synthesized image data is recognized, and face authentication of the authenticated user is performed. The storage unit 34 is a device that can store a large amount of data, such as a hard disk drive. In this embodiment, the storage unit stores an opening/closing process program 35, gate arrangement data 36, face authentication data 37, and image data 38. The opening/closing process program 35 is a program for authenticating a user's face and executing opening/closing process of the doors 15 and 16 of the gate device 10 for the user whose face has been authenticated. The gate arrangement data 36 is data related to the arrangement of the gate device 10 in the gate system 100 and the installation position of the camera device 20. The face authentication data 37 is face data of a user who can pass through the gate system 100 through the gate device 10. The image data 38 is data processed by the image processing unit 33. The image data 38 may be deleted every time a certain time has passed. In addition, in this embodiment, the authentication is performed by face authentication processing, but this is not limited to this, and other authentication processing such as ID authentication and clothing authentication may be used. In addition to the authentication processing, other sensing processing such as detection of dangerous objects (people), detection of attributes (wheelchairs, blind people), measurement of people flow, three-dimensional reconstruction, abnormality detection, and behavior recognition may be used. In this way, the gate device 10 may perform arbitrary control on the detection target based on the sensing processing in which an arbitrary detection target is detected in an overlapping manner by multiple camera devices (detection devices).

5 is a plan view showing an example of the configuration of the gate system 100. The gate system 100 is, for example, a system that regulates entry into a predetermined facility.
As shown in FIG. 5, in this embodiment, the gate system 100 includes five gate devices 10A-10E as the multiple gate devices 10 and five camera devices 20A-20E as the multiple camera devices. A passage through which a user enters and exits (passes) is defined along the longitudinal direction of the housing of the gate device 10. In the illustrated case, four passages PW1-PW4 are defined by the housings of the gate devices 10A-10E, and the passages PW1 and PW2 are passages through which a user enters (upper side in the figure), and the passages PW3 and PW4 are passages through which a user exits (lower side in the figure). The entry and exit methods (passing directions) of the passages PW1-PW4 can be changed based on the control of the information processing device 30. Note that the information processing device 30 to which the gate devices 10A-10E and the camera devices 20A-20E are respectively connected is omitted from the illustration.

The gate devices 10A-10E are arranged in parallel on a carrier D1, and the camera devices 10A-10E are arranged in the center of the top surface of the gate devices 10A-10E. In this embodiment, the camera devices 20A-20E are arranged at a distance D2 from both ends of the gate device 10 in the longitudinal direction.

The imaging unit 23 of the camera devices 20A-20E is a camera device, and in this embodiment, is an omnidirectional camera. This makes it possible to capture images in all directions of each of the gate devices 10A-10E. In other words, it is possible to capture images of the surroundings of the gate system 100 in an overlapping manner. Note that, in this embodiment, the detection device that detects users is an omnidirectional camera device, but the detection device is not limited to this. The detection device may be, for example, a camera that captures a specified range, a fisheye camera, an ultrasonic sensor, a depth sensor, an X-ray camera, or the like. Then, by arranging the detection devices so that their detection ranges overlap, users located around the gate system 100 can be accurately detected.

Figure 6 is a diagram showing an example of the side of gate device 10A. It also shows the case where the user is positioned at the position indicated by the tip of the arrow in Figure 5.

As described above, the gate device 10A has the camera device 20A at the center of the top surface. The height of the gate device 10A is arbitrary, but it is desirable to set the height so that the faces of various types of users (adult users, child users, users in wheelchairs, etc.) can be photographed within the shooting range of the camera device 20A. The gate device 20A also has the above-mentioned doors 15 and 16 on the side, and these doors 15 and 16 are supported by the support parts 15a and 16a. In FIG. 6, the doors 15 and 16 are shown in a state in which they are located at the second position stored on the side of the gate device 10A. In other words, they are in a state in which users can pass through (open state). Since the passage PW1 is the entrance side, the door 15 located at this second position is normally rotated toward the passage PW1 side around the support part 15a, and is in a state in which users cannot pass through (closed state), and the door 15 is located at the first position that restricts the entry of users. Note that while gate device 20A has been used as an example, the other gate devices 20B, 20C, and 20D are similar. On the other hand, gate device 20E is on the passage PW4 side and no passage is defined. For this reason, the doors 15 and 16 of gate device 20E are always in the second position.

Next, the process of opening and closing the door of the gate system 100 (in other words, the process when a user enters and exits) will be described. FIG. 7 is a flowchart showing an example of the user passage process. This process is executed by the information processing device 30, and is executed after the power of the gate system 100 is turned ON until it is turned OFF.

The control unit 31 of the information processing device 30 acquires camera data (ST101). More specifically, the control unit 31 acquires image data captured by each of the camera devices 20A-20E via the network. Next, the control unit 31 executes image processing (ST102). In this embodiment, the image data acquired from the five camera devices 20A-20E is synthesized to create image data of the shooting range around the gate system 100. At this time, since the shooting ranges overlap, image data of one shooting area can be created by synthesizing multiple image data.

Next, the control unit 31 determines whether or not a user is present (ST103). That is, the control unit 31 determines whether or not a user is present in the image data based on the synthesized image data. More specifically, for example, the control unit 31 determines whether or not a user is present based on whether or not the user's face can be identified in the synthesized image data. Therefore, the control unit 31 can obtain face data of a user present around the gate system 100 at that time.

Next, the control unit 31 determines whether or not the user is located at a predetermined position (ST104). Here, in this embodiment, the predetermined position is the entrance of a passage of the gate device 10. The control unit 31 makes this determination, for example, based on whether the position of the user's face detected from image data is located at the entrance. This determination is made for the entrances of the four passages PW1 to PW4. Therefore, since the passage directions of passages PW1 and PW2 and passages PW3 and PW4 are different, the entrances of passages PW1 and PW2 are on opposite sides to the entrances of passages PW3 and PW4.

If it is determined that the user is located at the specified position (ST104: YES), the control unit 31 determines whether or not entry is permitted (ST105). The control unit 31 compares the face data of the user located at the specified position with the face authentication data 37 stored in the memory unit 34, and determines whether or not the user's face data is included in the face authentication data. Here, if the control unit 31 determines that the user's face data is included in the face authentication data, it determines that entry is not permitted, and if it determines that the user's face data is not included in the face authentication data, it determines that entry is not permitted.

If it is determined that entry is permitted (ST105: YES), the control unit ST106 executes door opening/closing processing (ST106). This processing is executed for a gate device where a user is positioned at a specified position, and will be described later with reference to FIG. 8. If it is determined in step ST103 described above that a user is not present (ST103: NO), if it is determined that the user is not positioned at a specified position (ST104: NO), or if it is determined that entry is not permitted (ST105: NO), the door opening/closing processing is started (ST106), and then the processing returns.

Next, the door opening/closing process will be described. This process is executed by the control unit 31 of the information processing device 30 for the gate device to which the door opening/closing process has been instructed. FIG. 8 is a flowchart showing an example of the door opening/closing process. The following describes the case where the door opening/closing process is executed for the gate device 10A.

When the control unit 31 instructs the gate device 10A to close the door via the network (ST201), the gate device 10A rotates the door 15 to the second position. In other words, when the gate device 10A receives the instruction, the door control unit 13 rotates the door 15 from the first position to the second position, opening the door 15 to allow the user to pass through. This releases the traffic restriction placed on the door 15 of the passage PW1, allowing the user to enter the gate system 100.

Next, the control unit 31 determines whether the user has passed through (ST202). The control unit 31 grasps the position of the user on the passage PW1 based on image data created by the image processing unit 33, and determines whether the user has passed through a predetermined position downstream of the passage PW1. If it is determined that the user has not passed through (ST202: NO), the process returns to the determination in step ST202. That is, the door 15 remains in the second position. On the other hand, if it is determined that the user has passed through (ST202: YES), the control unit 31 transmits a door open instruction to the gate device 10A (ST203). As a result, the door 15 rotates to the first position, and enters a state (closed state) that restricts the passage of the user through the passage PW1. This ends the door opening/closing process for the gate device 10A.

Next, the operation of the gate system 100 will be described with reference to Figs. 9 to 12. Figs. 9 to 12 are diagrams showing examples of the shooting state in which a user is shot. Note that the shooting range of the camera devices 20A to 20E is omnidirectional, but for the sake of convenience, Figs. 9 to 12 show only a portion of the shooting range.

FIG. 9 is a diagram showing a state in which a user approaching the gate system 100 from the upper side in the figure is photographed by a plurality of camera devices 20C, 20D, and 20E.
As shown in Fig. 9, the user is located between and above the camera devices 20C and 20D and is about to pass through the passage PW3. The user can be photographed at least in the shooting range A1 of the camera device 20C, the shooting range A2 of the camera device 20D, and the shooting range A3 of the camera device 20E. The information processing device 30 can thus obtain image data of the user photographed by the multiple camera devices 20C, 20D, and 20E, detect the user's face based on image data obtained by combining the multiple image data, and identify the user's position. Therefore, the information processing device 30 can quickly and reliably grasp the user's position and face.

Figure 10 is a diagram showing a state in which a user approaching the gate system 100 from the bottom side (opposite side to that in Figure 9) is photographed. In this embodiment, the camera devices 20A to 20E have an omnidirectional shooting range, so even if a user approaches the gate system 100 from the bottom side, the user can be detected based on image data that combines image data photographed by at least the camera devices 20B, 20C, and 20D. Then, when the user is positioned at a predetermined position in the passage PW2, face recognition processing is performed based on the combined image data. If the user is permitted to enter, the door 15 rotates from the first position to the second position, and the user can pass through the passage PW2. In this way, in this embodiment, the camera devices 20A to 20E use omnidirectional cameras, so users can be detected on both the entrance side and the exit side of the gate system 100.

Figure 11 is a diagram showing a state in which a plurality of users approaching the gate system 100 are photographed by a plurality of camera devices. The plurality of users are two users, user A and user B. In the photographing range A21 of the camera device 20C, user B is hidden behind user A. On the other hand, in the photographing ranges A22 and A23 of the camera devices 20D and 20E, both users A and B can be photographed. In other words, camera devices 20D and 20E can photograph user B, who cannot be photographed by camera device 20C. Therefore, the information processing device 30 can detect the position and face of user A and the position and face of user B based on image data obtained by combining at least the image data of the camera devices 20C, 20D, and 20E. Therefore, the information processing device 30 can quickly and reliably recognize both users A and B, even if user B is hidden by user A in the photographing direction of the camera device 20C.

Figure 12 shows how a user passing through passage PW4 by crossing the upper side of the gate system 100 is photographed by multiple camera devices.

A user located at position P1 on the upper left side of the figure has passed through positions P2 and P3 to reach position P4, and is about to pass through gate system 100 from position P4 via passage PW4. Even when a user moves across the top of gate system 100 and passes passage PW4 in this way, the user can be detected based on image data that combines image data captured by multiple camera devices 20A-20E, and the user's position and face can be detected, as well as the user's movements over time. In such a case (when a camera crosses), the user's position and face can be detected even more quickly.

Second Embodiment
The second embodiment is different from the first embodiment in that the height of a user passing through a passage can be measured. Therefore, the process of measuring the height will be described in detail. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description of these components will be omitted.

Figure 13 shows an example of a state in which the heights of users passing through an aisle are photographed by multiple camera devices and the heights of the users are measured. Specifically, a child user is passing through aisle PW1, and an adult user is passing through aisle PW3.

The child user is photographed in the shooting range A41 of camera device 20A and the shooting range A42 of camera device 20B, and these image data are sent to information processing device 30. Information processing device 30 detects the user based on these image data. Information processing device 30 also measures the user's height from each image data. Control unit 31 of information processing device 30 detects the user's appearance above the installation location of camera device 20 based on image data of shooting range A41 of camera device 20A, and measures the user's height by adding the height of the installation location of camera device 20 (in other words, the height of gate device 10A) to the detected height of the user's appearance. Control unit 31 also performs similar processing on image data of shooting range 42 of camera device 20B.

The control unit 31 determines the user's height measurement result by correcting (e.g. averaging) the two height measurement results obtained in this way. For example, when a user passes along one side of the passage PW1, the distances from the two camera devices 20A, 20B to the user's position are different. For this reason, the camera device that is closer to the user will take a large image of the user, and the camera device that is farther away will take a small image of the user. This can result in differences in the user's appearance detected by the control unit 31 based on image processing, and the height measurement result may differ. Even in such cases, the control unit 31 can correct the measurement result using the two height measurement results, making it possible to accurately measure the user's height.

The information processing device 30 also performs a process of measuring the height of a user passing through passage PW3. The control unit 31 then determines, for example, that the user is a child if the measurement result of the user's height is equal to or less than a predetermined height, and determines that the user is an adult if the measurement result exceeds the predetermined height. In FIG. 13, the user passing through passage PW1 is determined to be a child, and the user passing through passage PW3 is determined to be an adult.

According to the gate system 100 of this embodiment, the height of a user passing through the passage of the gate system 100 can be accurately measured based on images captured by two camera devices.

Third Embodiment
The third embodiment differs from the first embodiment in that it is possible to detect whether a user is accompanied by another user passing through a passageway. Therefore, the process of detecting an escort will be described in detail. Here, an escort refers to two or more people passing through the gate system with one ID (in this embodiment, face recognition). Note that the same reference numerals are used to designate the same components as those in the first embodiment, and detailed descriptions of these components will be omitted.

Figure 14 is a diagram showing an example of a state in which two users A and B passing through an aisle are photographed by multiple camera devices, and users A and B pass through gate system 100 together. Specifically, users A and B are passing through aisle PW3, and users A and B are photographed by camera devices 20C and 20D. Note that user B is hidden by user A in the photographing direction of camera device 20C.

Users A and B are photographed in the shooting range A51 of camera device 20C and the shooting range A52 of camera device 20D, and the image data is sent to information processing device 30. Information processing device 30 recognizes users A and B based on the image data. Information processing device 30 also measures the distance between user A and user B from the image data.

The control unit 31 of the information processing device 30 cannot recognize the presence of user B from the image data captured by the camera device 20C, and therefore cannot measure the distance between user A and user B. On the other hand, the control unit 31 can recognize user A and user B from the image data captured by the camera device 20D, and can measure the distance between user A and user B. If the measured distance is less than a certain distance, the control unit 31 determines that the user is accompanied, and if it exceeds the certain distance, the control unit 31 determines that the user is not accompanied. If the control unit 31 determines that the user is accompanied, it does not execute the door opening and closing process described above (see step ST106 in FIG. 7). Therefore, the door 16 of the gate device 10C does not rotate from the first position to the second position, and the passage through the passage PW3 remains restricted. At this time, if an alarm device is provided in the gate device 10, the user A and B may be alerted by sound, light emission, etc. In addition, if the escort state can be detected from two camera devices, and the distance between users A and B can be obtained from each image data, the distance between users A and B can be measured more accurately by performing processing such as averaging the two distances.

According to the gate system 100 of this embodiment, a user who is passing through the gate system 100 with an escort can be prevented from passing through the gate system 100.

Fourth Embodiment
The fourth embodiment differs from the first embodiment in that the number of users around the gate system 100 can be detected. Therefore, the process of detecting the number of users will be described in detail. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed descriptions of these components will be omitted.

Figure 15 is a diagram showing an example of a state in which multiple users exist around the gate system 100. The shooting ranges captured by the camera devices 20A to 20E on the lower side of the figure are shooting ranges A61 to A65, respectively, and the shooting ranges captured by the camera devices 20A to 20E on the upper side of the figure are shooting ranges A71 to A75, respectively. Two users, Y10 and Y11, exist in the shooting ranges A61 to A65, and nine users, Y1 to Y9, exist in the shooting ranges A71 to A75. The information processing device 30 performs image processing on the image data received from the camera devices 20A to 20E to detect the positions of the eleven users, user Y1 to user Y11. Note that the reason why multiple user positions are shown is to show the routes that the users have traveled over time. Through this image processing, the information processing device 30 can detect the positions and faces of the users around the gate system 100, as well as the state of their movement over time.

In this way, the information processing device 30 can detect the number of users around the gate system 100. In FIG. 15, nine users, users Y1 to Y9, are detected on the upper side of the figure, and two users, users Y10 and Y11, are detected on the lower side of the figure. In other words, the information processing device 30 can detect that the number of users attempting to pass through the gate system 100 from the upper side to the lower side of the figure is significantly greater than the number of users attempting to pass through the gate system 100 from the lower side to the upper side of the figure. Therefore, the information processing device 30 executes a process for switching the passage direction of the passage PW2 to the opposite side for the gate device 20B of the gate system 100. Specifically, the door 15 of the gate device 20B is set to the first position, and the door 16 is transitioned to the second position. As a result, the passage direction of the passage PW2 is changed from the upper side to the lower side of the figure. Therefore, in the gate system 100, there are three passages from the top to the bottom, namely passages PW2, PW3, and PW4, and there is one passage from the bottom to the top, namely passage PW1.

The gate system 100 of this embodiment can detect the number of users around the gate system 100 and changes in their moving positions over time. Therefore, the gate system 100 can change the passage directions of the passages PW1 to PW4 of the gate system 100 according to the detected number of users. This allows users to pass through the gate system 100 smoothly.

(Modification)
In the above embodiments, for example, as shown in FIG. 5, the gate devices 10A to 10E correspond one-to-one to the camera devices 20A to 20E, and the camera devices 20A to 20E are arranged in the center of the upper surface of the gate devices 10A to 10E. However, the arrangement of the gate devices and the camera devices is not limited to this. As shown in FIG. 16, the camera devices 20A to 20E may be arranged at alternating ends of the upper surface of the gate devices 10A to 10E. Also, as shown in FIG. 17, two sets of camera devices 20A1, 20A2 to 20E1, 20E2 may be arranged at both ends of the upper surface of each of the gate devices 10A to 10E.

In addition, the gate device and the camera device do not have to correspond one-to-one, and the camera device may be arranged so that the surroundings of the gate system 100 can be photographed in an overlapping manner. Furthermore, the camera device does not have to be provided in the gate device, and for example, if the gate device is provided indoors, it may be provided on the ceiling, wall, etc.

Furthermore, in the above-described embodiment, the detection device is a camera device, and the camera devices 20A to 20E are the same camera device, but this is not limited to the above. Images may be taken with different resolutions depending on the camera device. For example, it is possible to arrange camera devices with high resolution and camera devices with low resolution alternately. By configuring the gate system in this way, the load on the image processing unit 33 of the information processing device 30 can be reduced by the amount of the reduced resolution. Furthermore, the detection device is not limited to a camera device, but may be arranged alternately or in a predetermined arrangement with a camera device and another detection device (fisheye camera, ultrasonic sensor, depth sensor, X-ray camera). By configuring the gate system 100 in this way, it becomes possible to detect a user by combining the characteristics of the detection devices.

In addition, according to each of the above embodiments, a user can be detected using multiple camera devices 20A to 20E. Therefore, for example, triangulation can be performed to measure the height of the detected user, the moving speed of the user, and the size of the luggage carried by the user. In other words, the gate system 100 can obtain information about users present within the detection range.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents as set forth in the claims.

10 (10A to 10E)...gate device, 15, 16...door, 20 (20A to 20E)...camera device, 30...information processing device, 34...storage unit, 35...opening/closing processing program, 36...gate arrangement data, 37...face recognition data, 38...image data, 100...gate system, PW1 to PW4...passageway.

Claims (7)

a plurality of gate devices each having a door that defines a passageway by a housing and restricts the passage of a user through the passageway ;
A plurality of camera devices that capture images in all directions around each of the gate devices and are arranged so that their capture ranges overlap;
a control device that controls opening and closing of the door based on the image capturing results of the plurality of image capturing ranges captured by each of the camera devices;
Equipped with
The control device includes an image processing unit that processes images captured by each of the camera devices, and detects the position and face of one or more users present within the capture range of each of the camera devices along with the user's movements over time based on the processing results of this image processing unit, and when the detected user's position is at the entrance of each of the gate devices, if the detected user's face is included in face authentication data of users who are permitted to enter, makes the door of the gate device corresponding to the detected user's position passable.
Gate system. When the detected face of the user is not included in the face authentication data of the user to be permitted to enter, the control device maintains the door of the gate device corresponding to the position of the detected user in a state in which the door cannot be passed through.
The gate system according to claim 1 . Each of the camera devices is provided at each of the gate devices,
the control device measures the height of the user by utilizing a processing result of the image processing unit of each of the camera devices provided at each of the adjacent gate devices.
The gate system according to claim 1 . The control device measures distances between a plurality of users passing through the passage, and when the measured distance is equal to or less than a certain distance, determines that the plurality of users passing through the passage are accompanied by another user, and maintains a closed state of the door in the passage through which the accompanied user passes .
The gate system according to claim 1 . The control device detects the number of the users within the shooting range photographed by each of the camera devices based on the processing result of the image processing unit.
The gate system according to claim 1 . the control device changes the entrance direction of the passage defined by each of the gate devices based on the detected number of users.
6. The gate system according to claim 5 . the number of the gate devices is equal to the number of the camera devices,
Each of the camera devices is provided at the center of an upper surface of a housing of each of the gate devices.
The gate system according to claim 1 .

Images