JP4747611B2 - Entrance / exit management device - Google Patents

Description

  The present invention relates to an entrance / exit management device for managing entrance / exit.

  Conventionally, an entrance / exit management system that restricts illegal entry / exit rooms and restricts entrance / exit management has been provided (for example, Patent Document 1).

This system includes a card reader for ID authentication near the door of the room, a front-facing imaging camera, and an imaging camera installed on the ceiling. When the personal information is read from the ID card by the card reader, the system searches the database. The face information captured by the front camera and the number of people photographed by both cameras, the face information collation results match, and there is only one authorized figure. That is, when it is determined that the person entering or leaving the room is one person, the door is unlocked, and after unlocking, if there are two or more authorized persons, an alarm is issued. Yes.
JP 2004-111538 A (paragraph numbers 0052 to 0055)

  By the way, since the system disclosed in Patent Document 1 counts the number of persons by the number of persons captured by two imaging cameras, when a plurality of persons can be captured at the same time like a companion. Although there is no problem, even if there is only one person shooting at the same time, this could not be caught when people moved in time series, and there was a risk of overlooking unauthorized entry and exit. In addition, they were unable to respond to invitations to leave illegally. Furthermore, they were unable to cope with the withdrawal from the room and the invitation to enter the room when unlocking from the room side.

  The present invention has been made in view of the above points, and its purpose is to enter / exit rooms that can detect illegal follow-up rooms by reliably detecting follow-up, invitations, and invitations in addition to accompanying persons. It is to provide a management device.

In order to achieve the above-mentioned object, in the invention of claim 1, ID authentication means for performing ID authentication of a person entering the room , locking means for locking / unlocking the door of the room entrance, and the ID Lock control means for controlling the lock means by ID authentication at the authentication means or operation from the indoor side, imaging means for imaging a predetermined area outside the doorway, and the person extracted from the image of the imaging means Image monitoring means having passage number counting means for judging the number of people passing through the doorway simultaneously and in time series, and outputting a detection signal indicating unauthorized entry / exit, while judging whether the person has entered and exited from the direction of travel with respect to the doorway and means, the imaging means is a range image pickup means for obtaining a distance value to each position of the object as a pixel value, the image monitoring means were obtained by the range image pickup means Has a kinematic stationary person extracting means for extracting a person passing through the person and the entrance to stay in the predetermined area from the release image information, said when there is a mismatch entry and exit from the number of persons the passing people counting means for counting characterized in that for outputting the detection signal by the output means.

According to the invention of claim 1, by counting the number of people who pass through the doorway simultaneously and in time series during unlocking, it is possible to ensure illegal entry / exit such as follow-up, invitation, invitation, etc. This can be detected and an alarm can be issued, so that it is possible to cope with this without missing an unauthorized entry / exit. In addition, it is possible to reliably perform the extraction of the person who becomes the foreground without being affected by the background, and it is possible to perform the counting of the number of people and the presence / absence of the visitor in the predetermined area with high accuracy and simple processing, There is little risk of malfunction.

  In the invention of claim 2, in the invention of claim 1, when the passing means counting means counts a plurality of occupants in a state where the locking means is unlocked by an operation from outside the room, the output means A detection signal is output.

  According to the invention of claim 2, when there is a companion or a follow-up room in the unlocked state from the outdoor side, an alarm can be issued by the detection signal of the output means to call attention.

  In the invention of claim 3, in the invention of claim 1 or 2, when the passing means counting means counts one or more persons leaving the room while the locking means is unlocked by an operation from the outside, A detection signal is output by the output means.

  According to the invention of claim 3, an alarm is issued by the detection signal of the output means in the state where the door is unlocked from the outdoor side, and there is a sneak-out room when entering the room or an invitation to urge the user to leave the room. , Can call attention.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the passing number counting means counts a plurality of persons leaving the room while the locking means is unlocked by an operation from the indoor side. Sometimes, the output means outputs a detection signal.

  According to the fourth aspect of the present invention, when there is a co-exiting room or a rearward leaving room when unlocked from the room side, an alarm is issued by the detection signal of the output means to call attention. Can do.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the passing number counting means counts one or more occupants in a state where the locking means is unlocked by an operation from the indoor side. Sometimes, the output means outputs a detection signal.

  According to the invention of claim 5, when there is a sneak-in entry or a urge to enter the room when unlocked from the room side, an alarm is issued by the detection signal of the output means, and attention is paid. Can be aroused.

According to a sixth aspect of the present invention, in the first to fifth aspects of the present invention, the moving and stationary person extracting means calculates a three-dimensional coordinate in a real space from the distance image information and calculates a three-dimensional coordinate. 3D masking means for extracting by applying a dimension mask is provided.

According to the sixth aspect of the present invention, it is possible to extract a person in a desired three-dimensional space in a predetermined area as a foreground, so that it is not necessary to take a background image for the foreground extraction in advance.

According to a seventh aspect of the present invention, in the invention according to any one of the first to sixth aspects, the image monitoring means includes a three-dimensional feature quantity extracting means for extracting a three-dimensional feature quantity of a person from the distance image information. It is used for counting the number of persons extracted by the moving and stationary person extracting means on the basis of a three-dimensional feature amount.

According to the invention of claim 7, can be counted accurately the number of persons from the distance image information by using the three-dimensional feature amount of the person present in the foreground is present in the foreground and that Do.
According to an eighth aspect of the present invention, in the seventh aspect of the invention, the image monitoring means is configured such that the person extracted by the moving and stationary person extracting means based on the three-dimensional feature quantity extracted by the three-dimensional feature quantity extracting means. Whether it is an adult or a child is determined, and the lock means is unlocked based on the determination result.
According to the invention of claim 8, it is possible to make a rule for permitting entrance / exit by using the three-dimensional feature quantity for identification of adults and children.

According to a ninth aspect of the present invention, in the seventh or eighth aspect of the invention, the ID authentication unit includes a physical feature information recording unit that records in advance the physical feature information of a person corresponding to the ID in association with the ID. The image monitoring means includes body feature information sent from the ID authentication means when the ID authentication means is operated when the lock means is locked, and the three-dimensional feature value extracted by the three-dimensional feature value extraction means. And a three-dimensional feature amount matching means for matching the above, and the lock means is unlocked when the result of matching in the three-dimensional feature amount matching means is the same and the count of the area visitor counting means is one person. It is characterized by.

  According to the ninth aspect of the present invention, in addition to the ID authentication, the ID owner can be surely checked, and entry into the room due to unauthorized use of the ID can be reliably prevented.

  According to a tenth aspect of the invention, in the invention according to any one of the first to eighth aspects, the stay in the predetermined area is based on a person extracted from an image captured by the imaging means, the ID authentication means being included in the predetermined area. An area staying person counting means for counting the number of persons is provided in the image monitoring means, and when the area staying person counting means is one person, the lock means is unlocked by the lock control means after ID authentication, and a plurality of persons In this case, the locked state is maintained even if there is ID authentication.

  According to the invention of claim 10, when there are a plurality of people staying in a predetermined area including the ID authentication means before the entrance regardless of the ID authentication, the door lock means is not unlocked. It can be prevented in advance, and this can cope with unauthorized entry.

  By counting the number of people who pass through the doorway simultaneously and in time series during unlocking, the present invention reliably detects unauthorized entry / exit such as follow-up, invitation, and invitation, and issues an alarm. As a result, there is an effect that it is possible to cope with this without missing the unauthorized entry / exit.

Embodiments of the present invention will be described below.
(Embodiment 1)
As shown in FIGS. 1 (a) and 1 (b), the entrance / exit management device of the present embodiment is a lock means 1 comprising an electric lock for locking / unlocking the door D provided at the entrance / exit E of the room R to be managed. A lock control means 2 for controlling the unlocking / locking of the lock means 1, an ID authentication means 3 for determining whether or not a person who intends to enter the room is permitted in advance, and image monitoring It comprises means 4 and alarm output means 5 for emitting an alarm sound such as an electronic buzzer as an illegal entry / exit detection signal.

  The ID authentication means 3 is provided on a predetermined area (hereinafter referred to as an outdoor area) A side in the vicinity of the doorway E, and is composed of appropriate operation means that can identify an individual such as an IC card, face authentication, and fingerprint authentication.

  The image monitoring means 4 is installed on an outdoor ceiling X near the door D, and includes an imaging means 40 and an imaging means 40 having an outdoor area A before the entrance / exit E including the installation location of the entrance / exit E and the ID authentication means 3 as an imaging range. The area staying person counting means 41 for counting the number of people in the outdoor area A by extracting moving / still persons in the outdoor area A from the captured image, and the lock means 1 are unlocked by the lock control means by ID authentication. And passing person counting means 43 that moves in the direction of door D until it is locked and counts an object (person) disappearing near door D.

    The area visitor counting unit 41 uses, for example, a grayscale image captured by the imaging unit 4, stores a background image in which no person exists in advance, and extracts a foreground portion that is collected from the difference between the stored background image and the current time image. A method of cutting out and determining the number of visitors according to the cut out area is adopted. Of course, a known technique other than this method can also be used, and the present invention is not limited to the above method.

  The passing person counting means 43 performs object extraction (extraction of the foreground part) at a predetermined time interval in the same manner as the area staying person counting means 41 in a state where the lock means 1 is unlocked, and on the image of the extracted object. The tracking of the moving object is performed by associating the calculated position at the current time with the calculated position at the previous time, and tracking in the direction of the door D set in advance as a result of the tracking. The person who disappears is regarded as the person entering the room, and the number of persons entering the room is counted.

  Thus, when the person M who is about to enter the room starts the operation for entering the room with the ID authentication means 3, the ID authentication means 3 sends an ID authentication operation signal to the signal processing means 42 of the image monitoring means 4.

  When this ID authentication operation signal is sent, the signal processing means 42 counts the number of people staying in the area 41 so as to count the number of people based on the image at the current time and the background image captured by the imaging means 40. Is given a directive.

  The area staying person counting means 41 counts the number of persons in the area by the above-described method according to the command. The count result is output to the signal processing means 42. The signal processing means 42 sends an unlocking command to the lock control means 2 when the result of the ID authentication sent from the ID authentication means 3 and the count result is singular (one person). As a result, the lock control means 2 outputs an unlock signal to the lock means 1 and controls the lock means 1 to be unlocked. Of course, even if the counting result is singular, the locked state is maintained when the ID is not authenticated.

  On the other hand, when there are a plurality of count results (two or more), the signal processing means 42 does not output an unlock command regardless of the ID authentication result. That is, the lock control means 2 does not perform the unlock control for the lock means 1 and maintains the locked state. Further, the signal processing means 42 issues a command to issue an alarm to the alarm output means 5 and tries to issue an alarm from the alarm output means 5 when trying to enter the room together. Note that the number of persons may be counted before the operation of the ID authentication unit 3, and when the ID authentication unit 3 is operated, determination of unlocking / locking maintenance may be performed using the count value from the operation to a predetermined time.

  When the ID authentication is performed and the lock means 1 is unlocked through the lock control means 2 due to the result that the area visitor counting means 41 has a single count, a signal indicating the unlocked state is transmitted through the lock control means 2 as a signal processing means. 42. As a result, the signal processing means 42 commands the counting operation to the passing person counting means 43 when the unlocked state is obtained by the ID authentication. The passing number counting means 43 starts counting the number of people entering the room based on the command. That is, as described above, the position of the extracted person on the image is calculated at regular intervals, the extracted object is tracked by associating the calculated position with the previous time and the current time, and the direction of the door D set in advance In this case, the person who entered the room is counted as the number of people who entered the room. The count result is output to the signal processing means 42. When the signal processing means 42 receives a counting result indicating that the number of people entering the room through the doorway E is counted as a plurality of times at the same time and in time series, the signal processing means 42 warns the warning output means 5 that there was a companion or follow-up (run-in) entry. A command is issued so that a warning is issued, and a warning is issued from the warning output means 5.

  As described above, in the present embodiment, when there are a plurality of persons in the outdoor area A during operation of the ID authentication unit 3, the lock state of the lock unit 1 is maintained and shared regardless of the ID authentication result. It is possible to prevent entry into the room.

  In addition, when unlocking after ID authentication, if multiple people enter the room at the same time or in time series, an alarm will be issued and there will be an alert to the administrator, etc., prompting coping with the accompanying room. is there.

The unlocking from the inside of the room R of the locking means 1 (hereinafter referred to as the “indoor”) is performed under the control of the lock control means 2 when the thumb-turn of the door knob or the unlocking operation button 10 for leaving the room is operated. In this unlocking process, a person inside the room can open the door D and enter the outdoor area A through the doorway E. The unlocked locking means 1 is automatically locked under the control of the lock control means 2 after a certain time has elapsed since unlocking. Of course, it is assumed that the door D is closed at this time.
(Embodiment 2)
By the way, although the above-mentioned passing number counting means 43 is for counting the number of people entering the room, in this embodiment, when the locking means 1 is unlocked from the indoor side and the person leaves the room, the same time and A function that counts the number of people who have left the outdoor area A from the direction of door D in the time series in the outdoor area A and has been in the outdoor area A for a certain period of time as a person leaving the room has been added to the passage counter 43. There is a feature in the point. Since other configurations are the same as those of the first embodiment, illustration is omitted.

  Thus, in the present embodiment, it is possible to prevent a companion before entering a room, issue an alarm when there is a companion room after unlocking, and a follow-up room, as in the first embodiment. In addition, the following unique operations are performed.

  That is, when the lock means 1 is unlocked by an indoor operation and a signal indicating that the lock means 1 is unlocked is received from the signal processing means 42, the passing number counting means 43 of the image monitoring means 4 is imaged by the imaging means 40. The person is extracted from the image of the outdoor area A and the movement of the extracted object is tracked in the same manner as described above. As a result of this tracking, the object appears from the direction of the door D, and the appearing object is the outdoor area A. If it continues to exist for a certain period of time, it is determined that the person has left, and the number thereof is counted. The signal processing means 42 issues a command to issue an alarm to the alarm output means 5 and issues an alarm from the alarm output means 5 when there is a co-exiting action when the counting result indicates a plurality.

As described above, in the present embodiment, when there is unlocking from the indoor side, and there are multiple people leaving at the same time or time series during the unlocking, this is detected and an alarm for the shared leaving room is issued. It can be emitted.
(Embodiment 3)
In the second embodiment, it is possible to detect and alarm each of the accompanying guest rooms being unlocked. However, the present embodiment is unlocked from the room side, and during the unlocking, it is the same as in the second embodiment. In addition, the passing person counting means 43 has a function of detecting illegal leaving such as invitation and accompanying leaving during unlocking by ID authentication, in addition to counting the number of people leaving. Since other configurations are the same as those of the first and second embodiments, illustration is omitted.

  Thus, when the passing person counting means 43 of the image monitoring means 4 of the present embodiment receives through the signal processing means 42 that the lock means 1 has been unlocked by the ID authentication by the ID authentication means 5, the imaging means 40. Extract the object from the captured image and track the movement of the extracted object (hereinafter referred to as a person) in the same manner as described above. The object that disappears in the direction of the door D as a result of this tracking If an object appears, and the appearing object continues to exist in the outdoor area A for a certain period of time, it is determined that the person has left the room, the number of each person is counted, and the counting result is output to the signal processing means 42.

  Here, if even one person who has left the room is counted, the signal processing means 42 determines that there has been an illegal leaving (joining leaving) act that is covered by the entering person or that there has been an illegal leaving due to invitation. A command is issued to issue an alarm, and the alarm output means 5 issues an alarm.

  That is, in this embodiment, when there is a person leaving the room when the person who has been unlocked by ID authentication enters the room, there is also a person who has left the room while the unlocked person is staying in the outdoor area A ( If there is an invitation to leave the room), this can be detected and an alarm can be issued.

Also, if a lock-in room is detected during unlocking by ID authentication, an alarm is issued by the alarm output means 5 in the same manner as in the first embodiment, and when unlocking from the indoor side, as in the second embodiment. If there is a detection of the accompanying room, the alarm output means 5 issues an alarm.
(Embodiment 4)
The image monitoring unit 4 of each of the above-described embodiments registers a grayscale image obtained by imaging the background in advance by the imaging unit 40, and obtains a grayscale difference between the background image and the grayscale image obtained at the current time. A means for extracting a person who is a foreground and counting the number of people based on the area of the person's area is employed as the area staying number counting means 41 and the passing number counting means 43.

  In the case of such a method, when the door D is opened and an image at the current time is obtained in a state where the room can be seen, the portion other than the person in the room is captured in this image. When the extraction is performed, it is difficult to accurately determine the number of people and the presence / absence of a visitor in the outdoor area A, which causes erroneous detection. If the accuracy is increased in order to eliminate this erroneous detection, the image processing becomes complicated. Furthermore, if there is a transmissive material such as a glass window that can be seen from the outside, such as a glass window, in the field of view of the image pickup means 40, the difference in the transmitted state is extracted when the above-described density difference is used, and as a result, high-precision counting There is a problem that cannot be done.

  On the other hand, in the present embodiment, as the imaging means of the image monitoring means 4, as shown in FIG. 2 (a), a distance image imaging means 40 ′ is used to extract a person based on the distance image information. There are features.

The distance image capturing means 40 ′ irradiates the subject with the irradiation light subjected to intensity modulation, receives the light reflected by the subject by the imaging device, and calculates the phase difference between the received light and the irradiation light. The distance value from the position of the image pickup means to each position of the subject is obtained as a pixel value, and the distance image image pickup means 40 ′ corresponds to the distance image image pickup means 40 ′ in advance by the distance image pickup means 40 ′. A distance image captured in the absence of a person is registered as a background distance image, and a difference (distance image background difference) from the distance image obtained by imaging at the current time is referred to as | background distance image-current time distance image |. If the difference value is equal to or greater than a certain value, a moving and stationary person extracting means 44 is provided for extracting a region having a height (foreground) that is not the background at the current time. For example, the image capturing direction of the distance image capturing means 40 is set to the entrance / exit direction E of the room R as shown in FIG. 2B, and in this state, the door D is closed and the background distance image is taken as a moving and stationary person. By registering with a recording means (not shown) in the extraction means 44, when the door D is opened and a person M is present indoors from the door D as shown in FIG. When the difference between the background distance image registered in advance and the current time distance image obtained by imaging is obtained by the above formula, it is possible to extract the person because there is no region corresponding to the foreground. Therefore, a person M who is at a distance L2 farther (inner side) than the distance L2 from the distance image capturing means 40 ′ to the closed door D has already entered the outdoor area A where the distance image capturing means 40 ′ is provided. It can be determined that no person exists. Further, as described above, when a transparent object such as a glass window is in the field of view of the distance image capturing means 40 ', a background distance image is displayed by covering the transparent object only during background imaging. If an image is taken, an object on the other side of the transmitted object is not extracted by the distance image background difference, and therefore is not affected by the transmitted object.

  Thus, when there is an authentication operation by the ID authentication means 3 and an ID authentication operation signal is input from the ID authentication means 3 to the signal processing means 42 of the image monitoring means 4, it is activated by a command of the signal processing means 42 corresponding to this input. The still person extraction means 44 obtains the above-mentioned distance image background difference from the distance image of the current time imaged by the distance image imaging means 40 and the registered background distance image, extracts the person as the foreground, and extracts the number of people staying in the area. It passes to the counting means 41 and the passing number counting means 43. The area visitor number counting means 41 counts the number of people staying in the outdoor area A from the size of the extracted person area, and sends the count result to the signal processing means 42. When the counting results indicate a plurality, the signal processing means 42 maintains the locked state of the locking means 1 in the same manner as in the first embodiment and prevents co-entry rooms.

  On the other hand, when the lock means 1 is unlocked after the ID authentication, the passing person counting means 43 calculates the position on the image of the person extracted by the moving and stationary person extracting means 44, and the calculated position and the previous time The number of people who enter the room as the person who enters the room whose tracking disappears in the direction of the door D set in advance as a result of the tracking is tracked. Counting and sending the counting result to the signal processing means 42. When the signal processing means 42 receives a count result indicating that a plurality of persons are counted at the same time and time series, the signal processing means 42 instructs the alarm output means 5 to issue an alarm that there is a co-entry room. The alarm is output from the alarm output means 5.

  Conversely, an object appears from the direction of door D, and if the appearing object continues to exist in the outdoor area A for a certain period of time, it is determined that the person has left the room, and the number of each person is counted, and the count result is output to the signal processing means 42. To do. Here, when even one person who has left the room is counted, the signal processing means 42 instructs the alarm output means 5 to issue an alarm on the assumption that there has been an illegal room leaving action (a group leaving room). The alarm is output from the alarm output means 5.

  On the other hand, when the lock means 1 is unlocked from the room side and the person leaves the room, the passing person counting means 43 calculates the position on the image of the person extracted by the moving and stationary person extracting means 44, and this The extracted person moving is tracked by associating the calculated position with the calculated position of the extracted person at the previous time, and as a result of the tracking, it appears in the outdoor area A from the preset direction of the door D If the person exists in the outdoor area A for a certain period or more, the person is determined as a person leaving the room, the number of persons leaving the room is counted, and the counting result is output to the signal processing means 42.

  The signal processing means 42 issues a command to issue an alarm to the alarm output means 5 and issues an alarm from the alarm output means 5 on the assumption that there is an action of leaving the room together when the counting result indicates a plurality.

As described above, even in this embodiment, it is possible to prevent accompanying room leaving when unlocked from the room side, and in particular, by using the distance image imaging unit 40 ′ as the imaging unit, the accompanying detection can be performed with high accuracy. .
(Embodiment 5)
In the present embodiment, the moving and stationary person extracting unit 44 that extracts an object from the distance image information of the distance image capturing unit 40 ′ is given in advance to the distance image captured at the current time as shown in FIG. By converting each pixel (image coordinate system α) on the distance image from a certain camera parameter to a world coordinate system β in the outdoor area A which is a real space, a three-dimensional mask in the world coordinate system β is applied, and a desired 3 3D mask means 44a for extracting only a certain person M in the dimensional space as a foreground is characterized in that it is provided as shown in FIG. That is, in the fifth embodiment, the foreground is obtained by obtaining the distance image background difference using the background distance image. However, the moving / still person extracting unit 44 of the present embodiment extracts the foreground by setting the three-dimensional mask position. It is. In the case where a transmissive object such as a glass window is in the field of view of the distance image capturing means 40 ′, in the fourth embodiment, a background distance image is displayed by covering the transmissive object only during background imaging. Although it is necessary to take an image, in this embodiment, it is possible to eliminate the trouble of covering the background distance image with 3D masking to capture the background distance image, and it is particularly effective when there is a glass window in a wide area. . In FIG. 3B, F indicates a floor.

Since the operations of preventing accompanying room entry, detecting accompanying room entry, detecting unauthorized room leaving, and detecting leaving together room are the same as those in the fourth embodiment, FIGS. 3 (a) and 3 (b) are similar to FIGS. ), The same components as those in FIG.
(Embodiment 6)
In the present embodiment, the foreground (person) extracted by the moving and stationary person extracting means 44 as shown in FIG. 4 utilizing the characteristics of the distance image obtained by using the distance value from the position of the imaging means to each position of the subject as a pixel value. 3D feature quantity extraction means 45 for extracting 3D feature quantities such as volume, height, 3D shape, etc. is added. For example, a high-dimensional volume is extracted with respect to an area extracted from a plane such as a grayscale image, and the number of people existing in the foreground is calculated from the size of the volume by the area visitor counting means 41 and the passing person counting means 43. Count. This makes it possible to perform accurate counting of people.

Further, the height is extracted and the adult and the child are identified based on the height, and the signal processing means 42 has a room entry rule that the adult can enter the room and the child cannot enter the room, and the lock / unlock control of the lock means 1 is controlled. Can also be performed.

The operations of the accompanying room prevention, the accompanying room entry detection, the unauthorized leaving detection, and the accompanying room leaving detection are the same as those in the fifth embodiment, and thus the description thereof will be omitted. Except for the three-dimensional feature quantity extraction means 45, FIG. ), The same components are denoted by the same reference numerals and description thereof is omitted.
(Embodiment 7)
In the present embodiment, it is determined whether the operator of the ID recognition unit 3 is a registered person by using the three-dimensional feature amount extracted by the three-dimensional feature amount extraction unit 45 of the sixth embodiment, and the security is improved. It is what.

  In other words, in the present embodiment, as shown in FIG. 5, information on the body features (three-dimensional feature amounts) of the person whose ID is registered is associated with the ID in advance in the body feature information recording unit 3a provided in the ID recognition unit 3. When the person who wants to enter the room inputs the ID by operating the ID recognition unit 3, the ID recognition unit 3 displays the ID authentication result and the body characteristic information associated with the ID as the image monitoring unit 4. The information is sent to the three-dimensional feature amount matching means 46 through the signal processing means 42. Here, the body feature information includes information such as the person's physique (body size (volume), height), whether or not a wheelchair or a cart is used.

  In the image monitoring unit 4, the moving and stationary person extracting unit 44 extracts the staying object in the outdoor area A from the distance image of the outdoor area A and the background distance image captured by the distance image capturing unit 40 ′, and the distance of the extracted staying object Further, the three-dimensional feature quantity extraction means 45 extracts the three-dimensional feature quantity of the staying object from the image information. In this case, the extracted three-dimensional feature value is taken into the three-dimensional feature value matching unit 46. The three-dimensional feature amount matching unit 46 compares the acquired three-dimensional feature amount with the body feature information sent from the ID recognition unit 3, and if there is a correlation between the two, the match is confirmed. This verification coincidence signal is sent to the signal processing means 42. The signal processing means 42 outputs a release command for unlocking the lock means 1 to the lock control means 2 when there is a collation match signal and the area visitor counting means 41 has a single count. On the other hand, if there is no collation match, the signal processing means 42 determines that the person who performed the ID operation is different from the registered person. In this case, the unlocking command is not output to the lock control means 2 and the locked state is maintained.

  In this embodiment, by performing unlocking control with improved security by ID recognition and body feature collation, it is possible to reliably prevent a spoofed person from entering the room.

  The operations of preventing accompanying room entry, detecting entering together room, detecting unauthorized leaving, and detecting leaving together room are the same as those in the fifth embodiment, and thus description thereof is omitted. Since the configuration other than the configuration related to the three-dimensional feature amount matching is the same as the configuration in FIG. 4, the same components as those in FIG. 4 are denoted by the same reference numerals in FIG.

Embodiments 1 to 3 are shown, in which (a) is a circuit configuration diagram and (b) is an arrangement diagram of each part. Embodiment 4 is shown, (a) is a circuit configuration diagram, (b) is an explanatory diagram of a distance image of the distance image imaging means. Embodiment 5 is shown, (a) is a circuit block diagram, (b) is explanatory drawing of three-dimensional masking. FIG. 10 is a circuit configuration diagram of a sixth embodiment. FIG. 10 is a circuit configuration diagram of a seventh embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock means 2 Lock control means 3 ID recognition means 4 Image monitoring means 40 Imaging means 41 Area visitor number counting means 42 Signal processing means 43 Passing number counting means R Room D Door A Outdoor area M Person X Ceiling E Entrance / exit

Claims (10)

ID authentication means for performing ID authentication of a person entering the room , locking means for locking / unlocking the door at the entrance of the room, and locking means by ID authentication by the ID authentication means or operation from the room side A lock control means for controlling the image, an imaging means for imaging a predetermined outdoor area near the entrance, and a person extracted from the image of the imaging means to determine whether the person entering the room and the person leaving the room from the direction of the entrance and exit. Image monitoring means having passage number counting means for counting the number of people who pass through at the same time and in time series, and output means for outputting a detection signal representing unauthorized entry / exit ,
The imaging unit is a distance image imaging unit that obtains a distance value to each position of the subject as a pixel value, and the image monitoring unit stays in the predetermined area from the distance image information obtained by the distance image imaging unit. A moving and stationary person extracting means for extracting a person and a person passing through the doorway;
Entry control system, characterized in that to output said detection signal by said output means when there is a mismatch entry and exit from the number of persons the passing people counting means for counting. 2. A detection signal is output by the output means when the passing number counting means counts a plurality of occupants in a state where the lock means is unlocked by an operation from outside the room. Entrance / exit management device. 2. A detection signal is output by the output means when the passing number counting means counts one or more persons leaving the room while the lock means is unlocked by an operation from outside the room. Or the entrance / exit management apparatus of 2 description. 2. A detection signal is output by the output means when the passing number counting means counts a plurality of people leaving the room while the lock means is unlocked by an operation from the room side. The entrance / exit management apparatus in any one of thru | or 3. 2. A detection signal is output by the output means when the passing number counting means counts one or more persons entering the room while the lock means is unlocked by an operation from the room side. 5. The entrance / exit management device according to any one of 4 to 4. The moving and stationary person extracting means includes a three-dimensional masking means for calculating a three-dimensional coordinate in real space from the distance image information and performing extraction by applying a three-dimensional mask with the three-dimensional coordinate. The entrance / exit management device according to any one of claims 1 to 5 The image monitoring unit includes a three-dimensional feature amount extracting unit that extracts a three-dimensional feature amount of a person from the distance image information, and the number of persons extracted by the moving and stationary person extracting unit based on the extracted three-dimensional feature amount. The entrance / exit management device according to any one of claims 1 to 6, wherein the entrance / exit management device is used for counting . The image monitoring unit determines whether the person extracted by the moving and stationary person extracting unit is an adult or a child based on the three-dimensional feature amount extracted by the three-dimensional feature amount extracting unit. 8. The entrance / exit management device according to claim 7, wherein the lock means is unlocked based on the result . The ID authentication means includes body feature information recording means for previously recording body feature information of a person corresponding to the ID in association with the ID, and the image monitoring means includes the lock means in the locked state. A three-dimensional feature amount collating unit for collating body feature information sent from the ID authenticating unit when the ID authenticating unit is operated and the three-dimensional feature amount extracted by the three-dimensional feature amount extracting unit; 9. The entrance / exit management device according to claim 7 or 8 , wherein the lock means is unlocked when the collation result of the feature quantity collating means matches and the count of the area visitor counting means is one. The image monitoring unit includes an area visitor counting unit that includes the ID authentication unit in the predetermined area and counts the number of visitors in the predetermined area based on a person extracted from an image captured by the imaging unit. The lock means is unlocked by the lock control means after ID authentication when the number of staying person counting means is one, and the locked state is maintained even when there is ID authentication in the case of multiple persons. The entrance / exit management device according to any one of claims 1 to 9.

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