JPS59185269A - Entrance and exit control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an entrance/exit management system using an identification device that compares patterns unique to individuals such as palm prints, fingerprints, and voices.

If you use an identity verification device that stores unique characteristic patterns of individuals, such as palm prints, fingerprints, and voices, and determines whether the person is the same person by determining the degree of similarity with the input characteristic pattern, it is possible to identify a person other than the registrant. It is possible to control the entrance and exit of buildings, etc., where people and exits are prohibited. By the way, in an identity verification device, if the degree of similarity is above a certain threshold, it is determined to be the real person, and if it is below the threshold, it is judged to be an impostor, but it is impossible to obtain a 100% recognition rate, and the person is rejected as a false recognition. or an impostor may be accepted. Therefore, it is difficult to perform entrance/exit management based only on the determination results of the personal identification device. In addition, when using a speaker verification device that compares voice feature patterns as an identity verification device, the stored reference pattern of the registrant may be updated using the input pattern in order to cope with changes in voice over time. This is possible, but if a false recognition is made in which the impostor is accepted as the principal, there is a risk that the imposter's input pattern will be used to update the reference pattern, and if you try to avoid this, the Another drawback is that the input cover pattern cannot be used to update the reference pattern, making it impossible to update effectively and leading to a decrease in recognition rate.

This invention was made to improve these drawbacks, and proposes an entrance/exit management system that reduces false recognition and has an effective learning function for updating reference patterns. The present invention will be explained in detail by taking as an example a case where a person verification device is used.

FIG. 1 shows an example of the configuration of the entrance/exit management system according to the present invention, (la) and (1b) are doors.

(2a), (2b) are door (la), (1b) is a door control device that automatically opens and closes, (3) is a registration number input device, (4) is a microphone, (5) is a speaker verification device,
(6) is a television camera.

(7) is a speaker verification device (5) placed in the room where the administrator is located.
) A terminal device that displays the judgment results and inputs the administrator's judgment, (8) is a storage device that stores portrait image information of the registrant, and (9) is a storage device that stores images from the television camera (6). (8) This is a display device that displays images stored in (8).

Next, the operation of the present invention will be explained using the drawings. Those wishing to enter or exit must enter the door that is normally open (
1a), enter the registration number into the registration number input device (3) and request your own reference pattern in the 1-speaker verification device;
Speak the designated words into the microphone (4). The speaker verification device (5) converts the input speech into a pattern of feature parameters, and compares it with the previously requested reference pattern to determine the degree of similarity. Figure 2 shows the case where the registered person speaks.

It is a figure showing the similarity distribution when an impostor other than the principal occurs, where (7) is the distribution of the similarity of the principal, and (A) is the distribution of the similarity of the impostor. Also! 11. L2 is a threshold value used for determination. The speaker verification device (5) compares the obtained similarity with a threshold value, and if the similarity is greater than L2, it is determined that the person who inputted the input is the person who said the same, and if it is smaller than Ll,
A determination result is obtained that the inputter is an impostor. On the other hand, if the similarity is between Ll and L2, the determination is suspended. If the judgment is on hold, the administrator is notified by displaying on the terminal device (7) that the judgment has been placed on hold, and the registration number is sent to the storage device (8) and the stored portrait of the registrant is sent to the administrator. The image is displayed on the display device (9) together with the image of the television camera (6) which has started operating in response to the signal from the speaker verification device (5). The administrator compares both images and transmits the determination result as to whether the input person is the real person or the impostor from the terminal device (7) to the speaker verification device (5). If the person making the input is determined to be the person who made the input based on the judgment information of the speaker verification device (5) and the administrator, a signal is sent to the door control device (2b) and the door (
lb) opens to allow entry or exit. If the person is determined to be an impostor, a signal is sent to the door control device (2a), the door (1a) closes, and the person is detained.
It is displayed on the terminal device (7) that an impostor has entered the system.

The television camera (6) operates and images the image on the display device (9).

On the other hand, when updating the reference pattern in the speaker verification device (5), the administrator's determination information is used.

Even when the degree of similarity is between Ll and L2, it is possible to use only the person's input pattern for updating, allowing effective learning and improving the recognition rate of the nine-speaker matching device (5). I can even measure things. Although we have explained here using a speaker verification device, it is also a palm print.

An identity verification device that uses a fingerprint or the like as a personal feature pattern can obtain a similarity distribution similar to the similarity distribution shown in FIG. 2, and therefore operates in the same way as the speaker verification device.

As explained above, in the entrance/exit management system according to the present invention, there is no possibility of erroneous recognition by the personal identification device.

This can be avoided artificially by the administrator by comparing the TV camera image and the stored portrait image, and when using an identity verification device such as a speaker verification device that requires updating of the button reference pattern, Effective learning is possible by using the administrator's judgment information. Furthermore, the administrator and the identity verification device can be placed in remote locations using public telephone lines, etc., and the probability that the identity verification device that requires the administrator's check will be suspended is quite low, so multiple administrators It is also easy to manage the gate.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an example of the configuration of the entrance/exit management system according to the present invention, and Fig. 2 shows the relationship between the distribution of the degree of similarity between the entry cover pattern reference patterns in the identity verification device by the principal and the impostor, and the threshold value. It is a diagram. In the figure, (1a) and (1b) are (2a) and (2
b) is a door control device, (3) is a registration number input device, (4
) is a microphone, (5) is a speaker verification device, (6) is a television camera, (7) is a terminal device, (8) is a display device,
(9) is a storage device. Agent Masuo Oiwa

Claims (2)

[Claims] (1) A characteristic pattern unique to the input individual. An identity verification device that judges the degree of similarity between pre-stored reference patterns using multiple thresholds and suspends the judgment if the degree of similarity is in an area that would cause erroneous identification, and a registrant who causes the administrator to perform confirmation if the degree of similarity is in the area where erroneous identification occurs. A portrait image storage device and a television camera that captures the person inputting the image. An entry/exit management system comprising a display device that compares and displays the two images, a personal identification device, and a door control device that automatically opens and closes the door from a manager's judgment information unit. (2) The entrance/exit gate according to claim (1), wherein the identity verification device is a speaker verification device having a learning function that uses the administrator's determination result to determine whether to update the reference pattern. management system.