JP2018092293A - Entrance/exit management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an entrance/exit management system capable of notifying and communicating the authentication result by face authentication to each user passing through a gate.SOLUTION: An entrance/exit management system 1 includes: a face image database 11 where face image data of a user and data related to the user are registered in association with each other; an image acquisition part 20 for acquiring image data of a plurality of isolation walls consisting of a plurality of gates having a width that allows a single user to pass therethrough and a plurality of gates consisting of the isolation walls; a face authentication part 10 for analyzing the face image data registered in the face image database 11 and an image acquisition zone in the image data acquired by the image acquisition part and performing face recognition of a plurality of persons acquired by the image data; and speakers 41 to 44 for notifying the user passing through each of gates 71 to 74 between the isolation walls of the authentication result by the face authentication part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an entrance / exit management system for managing entry / exit of workers at an entrance / exit gate at a construction site or the like.

  Conventionally, entry / exit management of a worker at a construction site or the like has been performed using an authentication information recording medium such as a non-contact IC (Integrated Circuit) card. In the conventional management method, there are many cases where the cost of issuing the authentication information recording medium is high, or the authentication information recording medium is not carried or lost, so that efficient management cannot always be performed.

Therefore, in order to increase the efficiency of entrance / exit management and reduce the cost of management, for example, entrance / exit management using face authentication technology as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2014-241578) is performed. It is possible to do it.
JP 2014-241578 A

  Using face authentication technology, it is possible to perform face authentication of multiple people at the same time based on the image data acquired at the entrance / exit gate, etc., improving the efficiency of entrance / exit management, but on the other hand, passing through the gate A means for notifying / transmitting the result of the authentication to the person who does it has not been proposed.

  The present invention solves the above-described problem, and an entrance / exit management system according to the present invention is an entrance / exit management system for managing entrance / exit of a user at an entrance / exit gate in a management target area. A face image database in which image data and data related to a user are associated and registered; a plurality of isolation walls forming a plurality of gates having a width that allows one user to pass through; and the isolation wall An image capturing unit that acquires image data of a plurality of configured gates, face image data registered in the face image database, and an image acquisition zone in the image data acquired by the image capturing unit are analyzed, and the image A face authentication unit for recognizing faces of a plurality of persons acquired by data, and an authentication result in the face authentication unit are notified to a user who passes through each gate between the isolation walls. A notification unit that, characterized by comprising the.

  The entrance / exit management system according to the present invention is characterized in that a undulation is provided at a gate through which a user passes.

  In the entrance / exit management system according to the present invention, the undulation is a staircase.

  The entrance / exit management system according to the present invention is characterized in that the undulation is a slope.

  The entrance / exit management system according to the present invention is characterized in that a sensor for detecting a user passing through each gate between the isolation walls is provided.

  The entrance / exit management system according to the present invention includes a plurality of isolation walls constituting a plurality of gates having a width that allows one user to pass through, and an authentication result in the face authentication unit, each gate between the isolation walls. An informing unit for informing a user passing through the door, so according to the entrance / exit management system according to the present invention, the authentication result by face authentication is informed to each user passing through the gate.・ It becomes possible to communicate.

It is a typical top view showing the outline of entrance / exit management system 1 concerning the embodiment of the present invention. It is a figure which shows the specific mode of entrance / exit management by the entrance / exit management system 1 which concerns on embodiment of this invention. It is a figure which shows the concept of the face recognition technique by image data. It is a figure which shows an example of the data structure of the face image database used with the entrance / exit management system 1 which concerns on embodiment of this invention. It is a figure which shows the flowchart of the face authentication process of the entrance / exit management system 1 which concerns on embodiment of this invention. It is a figure explaining the subject of entrance / exit management based on the face recognition of image data. It is the schematic diagram which looked at the gate of the entrance / exit management system 1 which concerns on other embodiment of this invention from the user traffic direction side. It is the schematic diagram which looked at the gate of the entrance / exit management system 1 which concerns on other embodiment of this invention from the user traffic direction side. It is the schematic diagram which looked at the gate of the entrance / exit management system 1 which concerns on other embodiment of this invention from the user traffic direction side. It is the schematic diagram which looked at the gate of the entrance / exit management system 1 which concerns on other embodiment of this invention from the user traffic direction side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an outline of an entrance / exit management system 1 according to an embodiment of the present invention. FIG. 2 is a diagram showing a specific state of entrance / exit management by the entrance / exit management system 1 according to the embodiment of the present invention. FIG. 3 is a diagram showing the concept of face recognition technology based on image data.

  The entrance / exit management system 1 according to the present invention manages entrance / exit of users such as workers at an entrance / exit gate in an area to be managed such as a construction site.

  A gate is installed between a management target area such as a construction site and outside a management target area, and a user who wants to enter or leave (for example, if a management target area is a construction site, It is assumed that the supplier will pass through the gate.

  In the following description, the entrance / exit management system 1 according to the present invention will be described as an example of managing entrance when a user passes from outside the management target area into the management target area. A similar method can be used.

  In the present embodiment, the first gate 71 and the second gate 72 allow five users to pass from the outside of the management target area to the inside of the management target area at the same time by four separation walls 60. The third gate 73 and the fourth gate 74 are provided. The width of one gate (the interval between adjacent isolation walls 60) has a width that allows one user to pass through. By setting the distance between the separation walls 60 as described above, it is possible to guide each user to be lined up, and to acquire appropriate image data included in the imaging unit 20 so that the face images of the respective users do not overlap. To do.

  In the entrance / exit management system 1 according to the present invention, a passage sensor 30 for detecting the passage of a user from outside the management target area is provided between the gates. The passage sensor 30 includes an optical sensor pair 31. The optical sensor pair 31 is disposed on the isolation wall 60, for example.

  Each of the optical sensor pairs 31 includes a light emitting element and a light receiving element. The light receiving element basically receives light emitted from the light emitting element at all times. When it is detected that the received light is blocked, it is determined that the user has passed. The detection result of the user passage by the passage sensor 30 (optical sensor pair 31) is transmitted to the personal computer 10.

  In addition, in the entrance / exit management system 1 according to the present invention, a speaker is provided as a dedicated notification means for a user who passes between the gates. In the present embodiment, a first speaker 41, a second speaker 42, a third speaker 43, and a fourth speaker 44 are attached to the isolation wall 60 as dedicated speakers for the first gate 71 to the fourth gate 74, respectively. . The sound generation of these speakers is controlled by the personal computer 10.

  The first speaker 41, the second speaker 42, the third speaker 43, and the fourth speaker 44 are for notifying the user passing through each gate of the authentication result of the face authentication process in the personal computer 10.

  For example, when the authentication in the face authentication process by the personal computer 10 is successful, the personal computer 10 is caused to pronounce “authenticated. Please pass” with the speaker of the corresponding gate, and the authentication fails. In such a case, the personal computer 10 causes the speaker of the corresponding gate to pronounce “Unable to authenticate. Please register the face image”.

  In the present embodiment, a speaker is used as a notification means for a passing person, but other notification means such as a display display may be used. In the present embodiment, only notification means for notifying the success / failure of face authentication is provided. However, in the case where the authentication fails, so as to prevent the reefer from passing through the gate. A simple door may be provided.

  Here, the entrance / exit management system 1 according to the present invention is characterized in that two or more gates are provided. This is because the face recognition technology used in the entrance / exit management system 1 according to the present invention uses what can perform face authentication of a plurality of users at the same time based on the image data acquired by the imaging unit 20. This is because entrance / exit management is made more efficient. That is, the number of parallel gates may be any number as long as it is two or more. However, in the entrance / exit management system 1 according to the present invention, the number of gates in parallel depends on the resources of hardware and software (personal computer 10) for performing face recognition processing and the total number of users passing through the gates. May be determined as appropriate.

  The imaging unit 20 is provided at a position where a user's face image that passes through all of the first gate 71, the second gate 72, the third gate 73, and the fourth gate 74 can be acquired. Image data acquired by the imaging unit 20 is transmitted to an information processing apparatus such as the personal computer 10.

  Note that the face recognition technology has a problem that the success probability of face authentication is reduced when “whiteout” exists in the image data acquired by the imaging unit 20. Therefore, when installing the gate outdoors, it is better to provide an appropriate ceiling on the gate to shield sunlight, and to irradiate the user who passes through artificial light with an appropriate amount of light. It is more preferable in capturing image data with a high authentication rate.

  The personal computer 10 receives the image data transferred from the imaging unit 20, analyzes it, and performs face authentication processing. As software for the face authentication process, for example, “NeoFace” (registered trademark) manufactured by NEC Corporation can be used. The personal computer 10 may be a general-purpose computer having a data processing function, a communication function, a data storage function, and the like. Further, in the entrance / exit management system 1 according to the present invention, another information processing terminal or the like can be used instead of the personal computer 10.

  Further, the personal computer 10 receives the detection result information of the user passage from the passage sensor 30 (optical sensor pair 31) corresponding to each gate, and controls the entrance / exit management system 1 according to the present invention. It has become.

  In addition, the personal computer 10 generates sound data based on face authentication processing corresponding to each gate in the image data by the first speaker 41, the second speaker 42, the third speaker 43, and the fourth speaker, respectively. A control command is transmitted to the speaker.

  Further, at least the database of the face image database 11 is recorded in the storage device of the personal computer 10. The face image database 11 is a database in which user face image data and data related to the user are associated with each other. FIG. 4 is a diagram showing an example of the data structure of the face image database used in the entrance / exit management system 1 according to the embodiment of the present invention. As shown in FIG. 4, the data of the face image database 11 includes unique “ID” data, user “name” data, and “face image data” of the face of the user himself / herself. In addition to this, data of the user's affiliation can also be included.

  The face image database 11 as described above is prepared in advance before the initial operation of the entrance / exit management system 1 according to the present invention. Further, even after the operation of the entrance / exit management system 1 is started, a new user is added as needed to update the face image database 11 as necessary. The personal computer 10 performs face authentication of the user who passes through each gate based on the latest face image data recorded in the face image database 11 and the image data acquired by the imaging unit 20. .

  The flow of processing in the entrance / exit management system 1 according to the present invention configured as described above will be described. FIG. 5 is a diagram showing a flowchart of face authentication processing of the entrance / exit management system 1 according to the embodiment of the present invention.

  When the face authentication process is started in step S100, image data captured by the imaging unit 20 is acquired in step S101.

  In step S102, the face image data registered in the face image database 11 and the image data acquired in step S101 are collated by face recognition technology for the gate where the passage of the user is detected by the passage sensor 30. In the preceding stage of the collation process in such face recognition technology, a work of extracting a face image from image data is performed. FIG. 3 is a diagram showing the concept of face recognition technology based on image data.

  The face extracted in the W1 × H zone in the image data is extracted and collated as the user's face F1 passing through the first gate 71, and the face extracted in the W2 × H zone in the image data is The face extracted as the user's face F2 passing through the second gate 72 and collated, and the face extracted in the W3 × H zone in the image data is extracted and collated as the user's face F3 passing through the third gate 73. The face extracted in the W4 × H zone in the image data is extracted and verified as the user's face F4 that passes through the fourth gate 74.

  Here, a zone for performing face authentication represented by (W1 + W2 + W3 + W4) × H in the image data is defined as an “image acquisition zone”.

  Here, W is a width corresponding to the width between the gates in the image data, and H is a height range in which the position of the face of a normal person is assumed to come.

  As described above, in the face authentication process, it is grasped through which gate the face user passes through the relationship between the preset image acquisition zone in the image data and the position of the extracted face. can do.

  In addition, since the image acquisition zone as described above is set, it is not always necessary to detect the passage of the user by the passage sensor 30, but the extraction processing in the corresponding zone is performed using the passage sensor 30 as a trigger. This can increase the accuracy.

  In step S103, it is determined whether the face extracted from the image data matches the face image data as a result of the collation.

  If the result in step S103 is YES, it is determined that the authentication is successful in step S104, and a notification is given by the speaker of the gate through which the successful authentication person passes (eg, “authenticated. Pass through.”). On the other hand, if the result is NO, it is determined that the authentication has failed in step S105, and notification (eg, “Authentication is not possible. Please register the face image”) is performed on the speaker at the gate through which the authentication failure person passes.

  In step S106, the face authentication process ends.

  The entrance / exit management system 1 according to the present invention as described above includes a plurality of isolation walls constituting a plurality of gates having a width that allows one user to pass through, and an authentication result in the face authentication unit as the isolation wall. An informing unit that informs a user passing through each of the gates in between. According to such an entrance / exit management system 1 according to the present invention, It becomes possible to notify and transmit the authentication result by the authentication.

  Next, another embodiment of the present invention will be described. Here, problems to be solved in other embodiments will be described first. FIG. 6 is a diagram for explaining a problem of entrance / exit management based on face recognition of image data.

  As shown in FIG. 6, the problem with face recognition based on image data acquired by the imaging unit 20 is that, when a user 2 exists immediately behind the user 1, the face of the user 2 is There is a possibility that it is impossible to extract the image data from the image data, and it becomes impossible to manage the entrance / exit of the user 2.

  Therefore, in another embodiment, the above problems are solved by providing undulations in the gate through which the user passes. Other points are not different from the embodiment described above.

  FIG. 7 is a schematic view of the gate of the entrance / exit management system 1 according to another embodiment of the present invention as seen from the side surface in the direction of the user's passage, and a staircase 81 is adopted as the undulation as described above. Here, when the user tries to pass through the gate, it is assumed that the user goes up one end of the staircase 81 and descends again to pass through the gate.

  As shown in FIG. 7, it is assumed that the difference between the user passing through the gate passes through a position that is one step higher than the flat ground by the stairs 81. The area around the user's face when the user stands at a higher position is set as a face authentication zone (image acquisition zone) by the entrance / exit management system 1. According to such a configuration, the user behind the focused user also goes up to the one higher position in order and definitely passes through the face authentication zone. This solves the problem that entrance / exit management becomes impossible.

  Next, another embodiment of the present invention will be described. FIG. 8 is a schematic view of the gate of the entrance / exit management system 1 according to another embodiment of the present invention as seen from the side of the user passage direction, and the slope 82 is adopted as the undulation as described above. Here, when the user tries to pass through the gate, it is assumed that the user goes up one end on the slope 82 and descends again to pass through the gate.

  Also according to such an embodiment, each user sequentially stands in a higher position on the slope 82 and is always face-authenticated in the face authentication zone (image acquisition zone) of the entrance / exit management system 1 set there. Therefore, entry / exit management cannot be performed without the face user being authenticated.

  Next, another embodiment of the present invention will be described. In order to solve the problem that the entrance / exit management of the user 2 in FIG. 6 cannot be performed, the gate through which the user passes is provided with undulations, and the optical axis of the lens (not shown) of the imaging unit 20 is set horizontally. The two points of facing up are adopted.

  FIG. 9 is a schematic view of the gate of the entrance / exit management system 1 according to another embodiment of the present invention as seen from the side surface in the direction of the user's passage, and a staircase 81 is adopted as the undulation as described above. Here, when the user tries to pass through the gate, it is assumed that the user goes up one end of the staircase 81 and descends again to pass through the gate.

  Furthermore, in the embodiment shown in FIG. 9, the optical axis of the lens (not shown) of the imaging unit 20 is directed above the horizontal, and the use behind the focused user in the face authentication zone (image acquisition zone). The probability that a person's face will be included is eliminated as much as possible, thereby improving the accuracy of face authentication.

  According to such an embodiment, each user sequentially stands at a position one step higher than the stairs 81, and face authentication is always performed in the face authentication zone (image acquisition zone) of the entrance / exit management system 1 set there. Furthermore, since the posture of the imaging unit 20 is employed so that the user behind the scene is not reflected in the face authentication zone (image acquisition zone), the user can enter and exit without face authentication. The management can no longer be disabled, and the entrance / exit management accuracy can be further improved.

  Next, another embodiment of the present invention will be described. In the embodiment shown in FIG. 10, a slope 82 is adopted as the undulation. Here, when the user tries to pass through the gate, it is assumed that the user goes up one end on the slope 82 and descends again to pass through the gate.

  Also according to such an embodiment, each user sequentially stands in a higher position on the slope 82 and is always face-authenticated in the face authentication zone (image acquisition zone) of the entrance / exit management system 1 set there. In addition, since the posture of the imaging unit 20 is employed in the face authentication zone (image acquisition zone) so that the user behind it is not reflected, entrance / exit management without the user being face-authenticated is performed. This makes it possible to improve the accuracy of entrance / exit management.

  As described above, the entrance / exit management system 1 according to the present invention includes a plurality of isolation walls that constitute a plurality of gates having a width that allows one user to pass through, and an authentication result in the face authentication unit between the isolation walls. And a notification unit for notifying a user who passes through each gate. According to such an entrance / exit management system 1 according to the present invention, for each user passing through the gate, face authentication is performed. The authentication result can be notified / transmitted.

DESCRIPTION OF SYMBOLS 1 ... Entrance / exit management system 10 ... Personal computer 11 ... Face image database 20 ... Imaging part 30 ... Passing sensor 31 ... Optical sensor pair 41 ... 1st speaker 42 ... Second speaker 43 ... Third speaker 44 ... Fourth speaker 60 ... Isolation wall 71 ... First gate 72 ... Second gate 73 ... Third gate 74 ... First 4 gate 81 ... staircase 82 ... slope

Claims (5)

In the entrance / exit management system that manages the entrance / exit of users at the entrance / exit gate in the managed area,
A face image database in which user face image data and data related to the user are registered in association with each other;
A plurality of isolation walls comprising a plurality of gates having such a width that one user can pass through;
An imaging unit that acquires image data of a plurality of gates configured by the isolation walls;
A face authentication unit that analyzes face image data registered in the face image database and an image acquisition zone in the image data acquired by the imaging unit, and performs face recognition of a plurality of persons acquired by the image data When,
An entry / exit management system comprising: an informing unit for informing a user passing through each gate between the isolation walls of an authentication result in the face authentication unit. The entrance / exit management system according to claim 1, wherein the gate through which the user passes is provided with undulations. The entrance / exit management system according to claim 2, wherein the undulation is a staircase. The entrance / exit management system according to claim 2, wherein the undulation is a slope. The entrance / exit management system according to any one of claims 1 to 4, wherein a sensor for detecting a user passing through each gate between the isolation walls is provided.

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