JP4617273B2 - Authentication gate - Google Patents

Description

  The present invention relates to a passenger gate at a railway station or an entrance gate of a venue used for holding various events, and more particularly to an authentication gate for authenticating the person.

  In Patent Literature 1, when the user enters the venue, the user is authenticated by the authentication token and the user identification information stored in advance in the authentication token is output from the authentication token. The gate opening / closing system is characterized by having control means for receiving the identification information and opening the entrance gate when the received identification information is stored in the database. .

  Patent Document 2 discloses a first reading unit that reads biometric information of a visitor, and a first signal generator that generates a signal indicating admission based on the biometric information read by the first reading unit. A first output unit capable of outputting the generated signal to an external first unlocking / locking means, and a first authentication for performing the authentication process of the read biometric information and holding the result An entrance / exit management device is described.

JP 2002-298173 A JP 2005-226363 A

  Practical and accurate entrance / exit management has been performed by performing authentication using biometric information. An authentication method that uses vein information of a finger as biometric information has been widely adopted as a simple and accurate determination means.

  An object of the present invention is to provide a practical authentication gate capable of performing biometric authentication simply, quickly and accurately using this finger vein information.

  The present invention guides the passage of a person having a certain height and a certain width along a passage through which a person passes, and is formed on the upper surface portion along the passage so as to allow passage of a hand. A near-infrared LED on one of the longitudinally opposed side surface portions of the groove portion, and an image pickup portion on the other, and on the passage entrance side of the image pickup portion, A near-infrared LED emission instructing means for instructing emission by a hand passage detection signal from the hand passage detection means, provided with a hand passage detection means arranged to face the groove and detecting the passage of a hand; A picked-up image input means for inputting a picked-up image signal from the pick-up section; a hand-shaped image acquiring means for acquiring a hand-shaped image from the input pick-up image; and a finger vein pattern is cut out from the generated hand-shaped image Finger vein pattern cutting out means An identity determination means for comparing the cut finger vein pattern and a pre-registered registered template to determine the identity of both, and a determination output means for outputting the same or mismatch determination in the case of the same or mismatch determination An authentication gate characterized by having a control device.

  By providing the control device described above, the present invention can provide a practical authentication gate that can perform biometric authentication simply, quickly, and accurately using finger vein information.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the appearance of the authentication gate, and FIG. 2 shows the appearance including a partial cross section of the authentication gate according to the embodiment of the present invention.

  In FIG. 1, the authentication gate 100 is configured to include a pair of board-shaped guide gates 1, and a passage 3 through which a person 2 passes is formed between the guide gates (gate bodies). A groove 5 is formed on the upper surface 4 of the guide gate 1. Accordingly, the guide gate 1 has a function of guiding the passage of the person 2 with a certain height and a certain width along the passage 3 through which the person 2 passes. Thus, the upper open groove 5 is formed to have a width and a depth allowing passage of the hand. In FIG. 2, the guide gate 1 includes a right guide gate portion 1A and a left guide gate. A flapper gate 6 is provided between the right guide gate portion 1A and the left guide gate portion 1B, and is opened and closed as described later. As shown in FIG. 2, the groove portion 5 is provided in the right guide gate portion 1 </ b> A of the guide gate 1.

  Near infrared LED 12 is provided toward groove 5 on one of the side surfaces facing each other in the vertical direction of groove 5, that is, right side surface 11, and camera 14 is disposed on near infrared LED 12 on the other side, that is, left side surface 13. It is provided so as to face each other. The camera 14 forms an imaging unit together with the image storage unit and the communication unit.

  Further, the near-infrared LED 15 and the hand-passing sensor for the passing sensor are arranged on the side of the passage entrance of the camera 14 of the guide gate 1 and on the upper side of the near-infrared LED 12 and the camera 14 so as to face the side portions 11 and 13. 16 is provided and a hand passage detecting means is arranged. On this side, the hand passage detection means is constituted by the near infrared LED 12 and the hand passage sensor 16, but may be constituted by other means.

  FIG. 3 shows an arrangement relationship among the hand 21 that passes through the groove 5, the camera 14, and the hand passage sensor 16. By arranging the hand passage sensor 16 on the passage entrance side of the camera 14, the passage of the hand 21 can be detected prior to the imaging by the imaging means (11, 14) described above.

  In FIG. 1, a forward infrared human sensor 17 is provided at a lower portion of the guide gate 1 toward the passage 3.

  FIG. 4 shows an arrangement relationship with other sensors including the front infrared sensor 17. As shown in FIG. 4, a front infrared human sensor 17, a center sensor 18, and a gate passage sensor 19 are provided in the guide gate 1 toward the passage 3. The position where the hand passage sensor 16 is provided is indicated by a dotted circle.

  In FIG. 4, the guidance gate 1 has a front infrared sensor 17 at the entrance center, a hand passage sensor 16 at the upper portion, a center sensor 18 at the lower portion, and a gate passage sensor 19 at the exit side. A flapper gate 6 is provided in the vicinity of the front side of the gate passage sensor 19. Therefore, when the person 2 passes through the authentication gate 100, any corresponding part of the living body is sensed in the order of the front infrared sensor 17, the hand passing sensor 16, the center sensor 18, and the gate passing sensor 19. Become. FIG. 5 is a block diagram showing the control device 30 of the authentication gate 100.

  In FIG. 5, the control device 30 includes a gate authentication unit 31 and the above-described hand passage detection unit 32. Moreover, the gate authentication means 31 has the imaging part 33 provided with the camera 14 (refer FIG. 2), and near-infrared LED12 (refer FIG. 2).

  The hand passage detection means 32 issues a hand passage detection signal, and this hand passage detection signal is input to the near infrared LED light emission instruction means 34 of the gate authentication means 31. When this signal is input, the near-infrared LED emission instruction means 34 instructs the near-infrared LED 12 (see FIG. 2) to emit near-infrared light. Based on this instruction, the near-infrared LED 12 emits near-infrared rays toward the passing hand 21. When the near-infrared ray hits the hand, the figure of the hand is instantaneously detected by the camera 14, that is, the imaging unit 33.

  As shown in FIG. 5, the gate authentication unit 31 includes a hand shape acquisition unit 35 and a finger vein authentication unit 36 which is a vein authentication unit. The hand-shaped form acquiring means 35 includes a captured image input means 41 and a hand-shaped image acquiring means 42. The finger vein authentication means 36, which is a vein authentication means, is a finger vein pattern cutting means 43, which is a vein pattern cutting means, and the identity. A determination unit 44, a processing unit 45, a storage unit 46 for storing a registered template, and a determination output unit 47 are provided. In this embodiment, an example will be described in which a finger vein pattern is cut out. However, the present embodiment is not limited to this, and any portion may be used as long as it is a vein in the hand.

  The external system (1) 51 is connected to the control device 30, and the registered template for the finger vein acquired and stored in advance is stored in the storage means 46 by the processing means 45 of the control device 30 via the communication means.

  With the above configuration, the captured image captured by the imaging unit 33 is input to the captured image input unit 41 of the hand-shaped image acquiring unit 35 and acquired as a hand-shaped image by the hand-shaped image acquiring unit 42.

  The finger vein pattern cutout means 43 of the finger vein authentication means 36 cuts out the corresponding finger vein pattern from the hand-shaped image. In this case, the finger vein pattern cutting means 43 detects a reference point of the generated hand-shaped image, for example, the center of the image, a specific point, a specific finger, or a reference shape (including an area), for example, a hand shape. A vein pattern such as a finger vein pattern can be accurately cut out based on a reference point or a reference shape.

  The extracted finger vein pattern is compared with the registered template, and the identity of both is determined by the identity determination means 44 by a normal method. The determination result is output to the external system (2) 52 by the determination output means 47. When the identity is determined, the external system (2) 52 opens the flapper gate 6 (see FIG. 2) according to an AND condition of other conditions and allows the person 2 to pass. If it is determined that there is a mismatch, the external system (2) 52 closes the flapper gate 6 and does not allow the person 2 to pass through the authentication gate 100. Here, finger veins are mainly used as biometrics for authentication, but authentication using veins contained in the hand is also possible.

  As described above, when the hand passage sensor 16 reacts, the near-infrared LED 12 emits light and the hand image is instantaneously captured by the camera 14, and the finger vein pattern is cut out from the hand image, The authentication gate 100 that authenticates the vein has the following characteristics.

○ Finger vein authentication can be performed automatically and instantaneously by moving the hand 21 horizontally up and down in the groove 5 cut by the guide gate 1.
○ It can be authentication without contact.
○ You can authenticate while walking.
○ A reader that reads RFIE and non-contact IC cards is installed in the guide gate 1 to enable the use with this ID system. As a result, the authentication accuracy can be further improved.

  FIG. 6 is a diagram showing a gate processing flow.

  In FIG. 6, it is determined whether or not the front infrared sensor is responding (S1), and when it is responding, the authentication gate standby is canceled (S2), and it is determined whether or not the hand passing sensor has responded (S3). ). When it is reacting, the near-infrared LED is emitted to capture a hand image (image) (S4).

  Then, it is determined whether or not it is correctly authenticated (S5). If it is authenticated, the flapper gate is opened (S6), it is determined whether or not the gate passage sensor has reacted (S7), and if it has reacted, Close the flapper gate (S8).

  In step S3, when the hand passage sensor does not react, it is determined whether the central sensor in the center of the gate has reacted (S11), and when it is responding, it is displayed on the screen display so as to perform finger vein authentication ( S12) If it is not responding, it is determined whether it is timed out (S13). If it is determined that a timeout has occurred, the gate authentication is set to the standby mode (S14), and the process returns to step S3. Further, even if it is not a timeout, the process returns to step S3.

  If the gate passage sensor does not react in step S7, a message indicating the failure of passage is output to the screen display unit (S16).

The external view of the Example of this invention. FIG. 2 is an external view including a partial cross section of FIG. FIG. 3 is a partial detail view of FIG. 2. FIG. 3 is a partial detail view of FIG. 2. The block diagram of the Example of this invention. Gate processing flow diagram.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Guide gate, 2 ... Person, 3 ... Passage, 4 ... Upper surface part, 5 ... Groove part, 6 ... Flapper gate, 11, 13 ... Side surface part, 12 ... Near infrared LED, 14 ... Camera, 15 ... Near for passing sensor Infrared LED, 16 ... hand passage sensor, 30 ... control device, 31 ... gate authentication device, 32 ... hand passage detection means, 33 ... imaging unit, 34 ... near infrared LED light emission instruction means, 35 ... hand shape acquisition means, 36 ... Finger vein authentication means 41... Captured image input means 42. Hand image acquisition means 43 43 finger vein pattern cutout means 44. Identity determination means 45. Processing means 46 46 storage means 47. , 51, 52 ... External systems (1), (2), 100 ... Authentication gates.

Claims (2)

It has a certain height and a certain width along the passage through which the person passes, and guides the passage of the person, and the upper surface portion is formed along the passage and has a depth allowing passage of the hand. A guide gate having an upwardly open groove, a vein authentication unit configured by providing a near-infrared LED on one of the longitudinally opposed side surfaces of the groove and an imaging unit on the other, and a passage of the imaging unit On the entrance side, it is arranged facing the groove and provided with a hand passage detection means for detecting passage of a hand,
By a hand passage detection signal from the hand passage detection means, a near- infrared LED light emission instruction means for instructing light emission to the near- infrared LED of the vein authentication means, a captured image input means for inputting a captured image signal from the imaging section, A hand-shaped image acquisition means for acquiring a hand-shaped image from the input captured image, a vein pattern cutting-out means for cutting out a vein pattern from the generated hand-shaped image, and the extracted vein pattern and a pre-registered registered template are compared. An authentication gate comprising: a control device comprising: an identity determining means for determining the identity of both; and an output determining means for outputting the same or mismatch determination in the case of the same or mismatch determination. 2. The authentication gate according to claim 1, wherein the vein pattern cutout unit cuts out the vein pattern based on a reference point or a reference shape of the generated hand-shaped image.

Images