JP6903236B2 - Access control device - Google Patents

Description

The present invention relates to an entry / exit management device that detects unauthorized intrusion into a security area.

Conventionally, a monitoring system that monitors an intruder in a security area is required to have a function of detecting unauthorized intrusion into the security area by tailgating and preventing an intrusion by an unauthenticated person. The reason is to increase the reliability of intrusion by the certifier into the security area. Here, "tailgating" means an act in which a non-certified person illegally invades the security area together with the certifier without being authenticated by the certifier.

As an example of the prior art, even when the certifier is allowed to enter the security area, if the sensor detects a blocking state corresponding to a plurality of people, the certifier and the non-certifier are invaded. An intrusion monitoring system that determines that the system has been used can be mentioned (see, for example, Patent Document 1).

This conventional intrusion monitoring system detects the number of people passing through the security gate by the number of times light, sound waves, etc. are blocked, even if it can be authenticated as a legitimate certifier. Then, when the conventional intrusion monitoring system detects that a plurality of people have passed through the security gate for one authentication based on the detection result, the conventional intrusion monitoring system enters the security area of the non-authenticated person by tailgating. Judge that an intrusion has occurred.

Japanese Unexamined Patent Publication No. 2007-233692

However, assuming that a plurality of non-certifiers pass through the security gate in a row in a state of being in close contact with the certifier, in the above-mentioned technique according to Patent Document 1, light, sound waves, etc. are blocked once. It is not possible to detect that multiple people have passed the security gate. As a result, it may not be possible to prevent piggybacking from entering the security area.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an entry / exit management device capable of suppressing unauthorized intrusion into a security area due to a state in which a plurality of people are in close contact with each other. To do.

In order to achieve the above object, the entry / exit control device according to the first aspect of the present invention has a door that can be opened / closed, and has a security gate installed in an entry / exit passage of a security area and a passage through the security gate. An information reading device that reads the identification information held in the information recording medium carried by the person, an information management control device that manages the entry and exit of passersby based on the identification information, and controls the opening and closing of the door, and is installed at the security gate. In addition, the information management control device is provided with a plurality of detection sensors that are installed at predetermined installation intervals in the passage direction of a passerby that invades the security area and detects the passerby, and the information management control device is provided with each of the plurality of detection sensors. Passer speed calculation unit that calculates the passing speed of the passer based on the detection result of, and the passage that is the dimension in the passing direction of the passer based on the detection results of each of the plurality of detection sensors and the passing speed. A passerby who determines whether or not there is an unauthorized intrusion into the security area based on the passerby width calculation unit that calculates the passer width for each of the plurality of detection sensors and the passer width calculated for each of the plurality of detection sensors. A determination unit is provided , and the passerby determination unit determines that an unauthorized intrusion has occurred when at least one of the passer widths calculated for each of the plurality of detection sensors is larger than a predetermined first threshold value. When calculating the passer width for each of the plurality of detection sensors, the passer width calculation unit calculates and calculates the estimated number of passers by dividing the passer width by the first threshold value. If the estimated passage's number is 2 or more, you a first correction pass who widths the passage's width are calculated by dividing in the estimated passage toll with the passage's width.
Further, the entrance / exit management device according to the second aspect of the present invention has a door that can be opened / closed, and is carried by a security gate installed in the entrance / exit passage of the security area and a passerby passing through the security gate. An information reading device that reads the identification information held in the information recording medium, an information management control device that manages the entry and exit of the passerby based on the identification information, and controls the opening and closing of the door, and the security gate are installed. In addition, the information management control device includes a plurality of detection sensors that are installed at predetermined installation intervals in the passage direction of a passerby that invades the security area and detects the passerby, and the information management control device includes the plurality of detection sensors. A passerby speed calculation unit that calculates the passing speed of a passerby based on each detection result of the detection sensor, a passerby passing through based on the detection results of each of the plurality of detection sensors and the passing speed. Based on the passer-by width calculation unit that calculates the passer-by width, which is the dimension of the direction, for each of the plurality of detection sensors, and the passer-by width calculated for each of the plurality of detection sensors, the user enters the security area. A passer-by determination unit that determines the presence or absence of unauthorized intrusion, a counting unit that counts the number of identification readings corresponding to different numbers of the identification information read during a predetermined reading time by the information reading device, and a counting unit. When calculating the passer width for each of the plurality of detection sensors, the passer width calculation unit obtains the passer width calculated for each of the plurality of detection sensors by the counting unit. The second modified passer width calculated by dividing each of the identified readings is defined as the passer width.

According to the present invention, by adopting the above configuration, it becomes possible to suppress unauthorized intrusion into the security area when a plurality of people are in close contact with each other.

It is explanatory drawing which shows the basic structure of the entrance / exit management apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which showed the operation process of the information management control apparatus provided in the entry / exit management apparatus shown in FIG. It is explanatory drawing which shows the basic structure of the entrance / exit management apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which showed the operation process of the information management control apparatus provided in the entry / exit management apparatus shown in FIG. It is explanatory drawing which shows the basic structure of the entrance / exit management apparatus 10C which concerns on Embodiment 3 of this invention. It is a flowchart which showed the operation process of the information management control apparatus provided in the entry / exit management apparatus shown in FIG.

Hereinafter, some embodiments of the entry / exit control device of the present invention will be described in detail with reference to the drawings.

Embodiment 1.
FIG. 1 is an explanatory diagram showing a basic configuration of the entry / exit control device 10A according to the first embodiment of the present invention. FIG. 1 shows a security gate installed in an entrance / exit passage of a security area as an external perspective view from diagonally above, and also shows a functional block diagram of a component of the entrance / exit management device 10A.

Referring to FIG. 1, the entry / exit management device 10A according to the first embodiment has an information reading device 19 and an information management control device on one side of security gates 17a and 17b which are erected facing the security area boundary. It is configured with 100A built-in. In the entry / exit management device 10A shown in FIG. 1, a case where the information reading device 19 and the information management control device 100A are built in the security gate 17b side is illustrated. The information reading device 19 reads identification information such as ID information held in an information recording medium carried by a passerby. The information management control device 100A has a function of managing the entry and exit of passersby based on the identification information and controlling the opening and closing of the doors 16 of the security gates 17a and 17b.

The information reading device 19 is provided at an inclined portion on the front side of the security gate 17b, and the information management control device 100A for reading the identification information held in the information recording medium carried by the passer is the information carried by the passer. The identification information contained in the recording medium is acquired via the information reading device 19 and the authentication process is performed.

When the information management control device 100A authenticates that the acquired identification information matches the information permitted to enter / exit the security area, the door 16 of the security gates 17a and 17b is opened. When the door 16 is opened according to the authentication result, the passerby is regarded as the certifier and can enter the security area through the passage between the opposite sides of the security gates 17a and 17b. If the identification information is not authenticated by the information management control device 100A, the doors 16 of the security gates 17a and 17b remain closed. When the door 16 remains closed according to the authentication result, the passerby is regarded as a non-certified person and cannot pass through the passage between the opposite security gates 17a and 17b.

The entry / exit management device according to the first embodiment has such a basic function, and accurately detects unauthorized entry into the security area by tailgating to prevent the intrusion of non-authenticated persons. It has a function. Therefore, next, the specific configuration of the additional function will be described in detail.

The entry / exit control device 10A includes a plurality of interpersonal detection sensors installed at predetermined installation intervals in the passage direction of the passage between the security gates 17a and 17b facing each other. In the example of the interpersonal detection sensor shown in FIG. 1, the first optical sensors 11a and 11b installed facing the front of the door 16 and the second optical sensors 12a installed facing the back of the door 16. 12b and 12b are used as a plurality of interpersonal detection sensors.

The installation interval between the first optical sensors 11a and 11b and the second optical sensors 12a and 12b corresponds to, for example, a distance between a location near the inlet end and a location near the exit end of the security gates 17a and 17b. One of the first optical sensors 11a and 11b is configured as a light emitting unit that emits directional light over the opposite sides of the security gates 17a and 17b, and the other receives the light emitted from the light emitting unit. It is configured as a light receiving unit. Similarly, one of the second optical sensors 12a and 12b is configured as a light emitting unit that emits directional light between the opposite sides of the security gates 17a and 17b, and the other is emitted from the light emitting unit. It is configured as a light receiving unit that receives light.

The light emitting unit and the light receiving unit are installed at positions facing each other across the passage between the security gates 17a and 17b. In the case of the entry / exit control device 10A shown in FIG. 1, the light emitting unit is installed at the security gate 17a on the left hand side in the traveling direction of the passage, and the light receiving unit is installed at the security gate 17b on the right hand side in the traveling direction of the passage. Is illustrated.

Therefore, the information management control device 100A identifies the time zone in which the passage between the first optical sensor 11a and the first optical sensor 11b is blocked from the detection results by the first optical sensors 11a and 11b. can do. Similarly, the information management control device 100A determines from the detection results by the second optical sensors 12a and 12b the time zone in which the space between the second optical sensor 12a and the second optical sensor 12b is blocked by a passerby. Can be identified.

Incidentally, when the information reading device 19 is provided at the inclined portion on the front side of the security gate 17a, the installation positions of the light emitting unit and the light receiving unit are reversed. That is, in such a case, the light emitting unit is installed at the security gate 17b on the right hand side in the traveling direction of the passage, and the light receiving unit is arranged at the security gate 17a on the left hand side in the traveling direction of the passage.

In any case, in the entry / exit management device 10A, the information reading device 19 provided at the security gates 17a and 17b reads the identification information held by the information recording medium carried by the passerby. As the information recording medium, for example, a card, a sheet, or the like can be applied. The information recording medium may be a receipt on which a barcode or the like is printed. In addition, the information reading device 19 may be in a form of recognizing a radio wave type ID tag.

Although the light emitting unit has been described as an optical sensor, that is, one that emits general-purpose visible light, it may also emit an electromagnetic wave including infrared rays, a sound wave, or the like.

The information management control device 100A includes a passer speed calculation unit 13, a passer width calculation unit 14, and a passer determination unit 15.

The passer-by speed calculation unit 13 reads the detection results of the first optical sensors 11a and 11b and the second optical sensors 12a and 12b. Specifically, the passerby speed calculation unit 13 determines from the detection results that the shielding start time corresponding to the timing when the passerby has entered the first optical sensors 11a and 11b, and the passerby is the first optical sensor 11a. The shielding end time corresponding to the timing when the passage through 11b is completed can be calculated. Further, the passerby speed calculation unit 13 can calculate the shielding time of the first optical sensors 11a and 11b by the passing person from the difference between the shielding end time and the shielding start time.

Similarly, from the detection result, the passer-by speed calculation unit 13 determines the shielding start time corresponding to the timing when the passerby enters the second optical sensors 12a and 21b, and the passerby sets the second optical sensors 12a and 12b. It is possible to acquire the shielding end time corresponding to the timing when the passage is completed. Further, the passerby speed calculation unit 13 can calculate the shielding time of the second optical sensors 12a and 12b by the passing person from the difference between the shielding end time and the shielding start time.

Next, the passerby speed calculation unit 13 determines the installation interval of the two interpersonal detection sensors by the time difference between the shielding start time of the first optical sensors 11a and 11b and the shielding start time of the second optical sensors 12a and 21b. By dividing, the passing speed of the passerby is calculated.

Specifically, the shielding start time of the first optical sensors 11a and 11b is Ts1, and the shielding start time of the second optical sensors 12a and 12b is Ts2. Further, the installation interval between the first optical sensors 11a and 11b and the second optical sensors 12a and 12b is L. At this time, the passing speed v of the passerby is obtained by the following relational expression 1.
v = L ÷ (Ts2-Ts1)

The passer-by width calculation unit 14 multiplies the shielding time of the first optical sensors 11a and 11b or the second optical sensors 12a and 12b by the pass-through speed calculated by the passer-by speed calculation unit 13 to obtain a passerby. The passer width corresponding to the dimension in the passing direction is calculated.

Specifically, the shielding start time of the first optical sensors 11a and 11b is Ts1, and the shielding end time is Te1. At this time, the passer-by width w1 of the passerby passing through the first optical sensors 11a and 11b is obtained by the following relational expression 2.
w1 = v × (Te1-Ts1)

Similarly, assuming that the shielding start time of the second optical sensors 12a and 12b is Ts2 and the shielding end time is Te2, the passer-by width w2 of the passerby passing through the second optical sensors 12a and 12b has the following relational expression. Obtained in 3.
w2 = v × (Te2-Ts2)

The passer-by determination unit 15 determines whether or not there is a passer-by who has illegally passed through the security gates 17a and 17b based on the calculated passer-by widths w1 and w2, respectively. That is, the passer-by determination unit 15 includes the passer-by width w1 according to the first optical sensors 11a and 11b and the passer-by width w2 according to the second optical sensors 12a and 12b calculated by the passer-by width calculation unit 14. By comparing with the threshold value, it is determined whether or not the passer has illegally passed through the security gates 17a and 17b.

When the passer widths w1 and w2 are larger than the predetermined first threshold values, the passer determination unit 15 determines that there are passers who have illegally passed through the security gates 17a and 17b.

By the way, the passer determination unit 15 determines that there is a passer who illegally passes through the security gates 17a and 17b even when the difference between the passer widths w1 and w2 is larger than the predetermined second threshold value. Can be done. The first threshold value may be an individual value associated with each of the different identification information. Further, when the passerby passes through the security gates 17a and 17b and does not determine that the passerby is illegal, the passerby determination unit 15 has a first threshold value based on the actually calculated passer widths w1 and w2. May be updated.

FIG. 2 is a flowchart showing an operation process of the information management control device 100A provided in the entry / exit management device 10A according to the first embodiment. The operation processing of the information management control device 100A shown in FIG. 2 is started when the power of the entry / exit management device 10A is turned on and ends when the power is turned off.

Referring to FIG. 2, the information management control device 100A is premised on the power-on state of the entry / exit management device 10A, and first, in step S21, the warning mode for detecting unauthorized intrusion is turned on. Next, the information management control device 100A proceeds to step S22 and detects whether or not the light of the first optical sensors 11a and 11b is blocked. As a result, the information management control device 100A determines whether or not a passerby has invaded the security gates 17a and 17b based on the detection results of the first optical sensors 11a and 11b.

As a result of the above determination, if the information management control device 100A does not detect the light shielding and does not detect the intrusion of the passerby, the information management control device 100A continues the process of step S22 until the intrusion of the passerby is detected. On the other hand, when the light shielding by the first optical sensors 11a and 11b is detected and it is determined that the passerby has invaded the security gates 17a and 17b, the information management control device 100A proceeds to step S23. In step S23, the information management control device 100A considers that a passerby has invaded the security gates 17a and 17b, and the passerby determines that the passerby has invaded the security gates 17a and 17b based on the detection results of the second optical sensors 12a and 12b. It is determined whether or not the vehicle has passed.

That is, the information management control device 100A performs detection by the second optical sensors 12a and 12b following the first optical sensors 11a and 11b in which the light shielding is first detected.

As a result of the above determination, if the passage cannot be detected in step S23, the information management control device 100A proceeds to step S24 and determines whether or not a certain time has elapsed. If the fixed time has not elapsed, the information management control device 100A returns to step S23 and continues to determine whether or not the passage is detected in step S23 until the fixed time elapses.

On the other hand, when it is determined in step S24 that a certain time has passed, the information management control device 100A proceeds to step S29 and confirms whether or not the passer who has not passed even after the certain time has passed is an certifier. .. Specifically, the information management control device 100A determines whether or not the authentication of a passer who has not passed even after a certain period of time is OK based on the identification information acquired by the information reading device 19. As a result of this determination, if the authentication is OK and the passer is the certifier, the information management control device 100A proceeds to step S30 and prompts the passer to re-enter notification by an alarm, display, or the like. After that, the information management control device 100A returns to step S21 and repeats the subsequent processing.

On the other hand, if the authentication is not OK in step S29 and the passer is not the certifier, the information management control device 100A proceeds to step S28, and the passer considers that the passer is about to pass illegally and is an alarm device. To operate. After that, the information management control device 100A returns to step S21 and repeats the subsequent processing.

On the other hand, if it is determined in step S23 that a passer has passed through the security gates 17a and 17b, the information management control device 100A proceeds to step S25 and performs a process of calculating the passer speed. In order to perform this process, the information management control device 100A calculates the shielding start time Ts1 of the first optical sensors 11a and 11b and the shielding start time Ts2 of the second optical sensors 12a and 12b. Further, the information management control device 100A calculates the passing speed v of the passerby using the above-mentioned relational expression 1. The calculation process of the passing speed v is executed by the passer speed calculation unit 13 in the information management control device 100A, and the passer speed calculation unit 13 transfers the calculated passing speed v to the passer width calculation unit 14. Output.

Further, the information management control device 100A proceeds to step S26 and performs a process of calculating the passerby width. In order to perform this processing, the information management control device 100A adds the shielding start time Ts1 of the first optical sensors 11a and 11b and the shielding start time Ts2 of the second optical sensors 12a and 12b, and the first optical sensor 11a. , 11b's shielding end time Te01 and the second optical sensors 12a, 12b's shielding end time Te2 are calculated. Further, the information management control device 100A calculates the passer-by width w1 using the above-mentioned relational expression 2, and calculates the passer-by width w2 using the above-mentioned relational expression 3. The calculation process of the passer widths w1 and w2 is executed by the passer width calculation unit 14 in the information management control device 100A, and the passer width calculation unit 14 calculates the passer widths w1 and w2. Output to the determination unit 15.

Subsequently, the information management control device 100A proceeds to step S27 and determines whether or not there is an unauthorized passage. As described above, the determination as to whether or not there is an illegal passage is performed by comparing each of the passer widths w1 and w2 with the first threshold value. This determination process is executed by the passer-by determination unit 15 in the information management control device 100A.

As a result of this determination, if there is an illegal passage, the information management control device 100A proceeds to step S28, considers that the target passer is an illegal passage, and activates the alarm device. After that, the information management control device 100A returns to step S21 and repeats the subsequent processing.

On the other hand, as a result of the determination in step S27, if there is no unauthorized passage, the information management control device 100A returns to step S21 and repeats the subsequent processes.

By the way, as the determination process in step S27, as described above, when the difference between the passer widths w1 and w2 is larger than the predetermined second threshold value, it is possible to determine that there is an illegal passage. Further, as described above, when the passer-by determination unit 15 determines in step S27 that there is no illegal passage, the passer-by determination unit 15 may update the first threshold value based on the passer-by widths w1 and w2.

Further, when executing the process of activating the alarm device in step S28, the information management control device 100A may turn on the patrol light (registered trademark) on the spot, or issue an alarm. You may. Further, when executing the process of activating the alarm device in step S28, a warning of unauthorized passage is displayed together with the entry time and the passing gate number on the server that manages the identification information, and is linked with the surveillance camera system. It may be possible to track it.

Incidentally, in the operation process of FIG. 2, the information management control device 100A immediately returns to the process of turning on the alert mode in preparation for the next illegal passage even when the alarm device of step S28 is activated. There is. As a result of determining whether or not there is illegal passage in step S27, even if there is no illegal passage, the process returns to the process of turning on the alert mode for the same reason.

In the entry / exit management device of the first embodiment described above, it is determined whether or not the passer has illegally passed through the security gate based on the passer width calculated by the information management control device. By this determination, even when a plurality of people try to pass in a close tailgating state, it is possible to accurately and accurately determine the illegal passage. As a result, it becomes possible to prevent an unauthenticated person from entering the security area with high accuracy.

Embodiment 2.
FIG. 3 is an explanatory diagram showing a basic configuration of the entry / exit control device 10B according to the second embodiment of the present invention. FIG. 3 shows the security gate installed in the entrance / exit passage of the security area as an external perspective view from diagonally above, and also shows a functional block diagram of the components of the entrance / exit management device 10A. In FIG. 3, as compared with the entry / exit management device 10A shown in FIG. 1, the same components are designated by the same reference numerals, and the description thereof will be omitted.

Referring to FIG. 3, the entry / exit management device 10B according to the second embodiment is processed by the passer width calculation unit 14a and the passer determination unit 15a provided in the information management control device 100B as compared with the entry / exit management device 10A. The function is different.

The passer width calculation unit 14a according to the second embodiment calculates the estimated number of passers by dividing each of the calculated passer widths w1 and w2 by the first reference width REF1 and rounding down after the decimal point. To do. Here, the first reference width REF1 is a value assumed as the average passer width of passers, and for example, a value of 300 (mm) is set in advance.

Further, when the estimated number of passers corresponding to the passer width w1 is 2 or more, the passer width calculation unit 14a divides the passer width w1 by the estimated number of passers and divides the passer width w1 by the estimated number of passers to obtain the first modified passer width w1 ′. Is calculated. Similarly, when the estimated number of passers corresponding to the passer width w2 is 2 or more, the passer width calculation unit 14a divides the passer width w2 by the estimated number of passers and divides the passer width w2 by the estimated number of passers to obtain the first modified passer width w2. ′ Is calculated. The passer width calculation unit 14a sets the first modified passer widths w1'and w2' as the updated passer widths, respectively.

When the first modified passer width w1'related to the first optical sensors 11a and 11b is larger than the predetermined first threshold value, the passer determination unit 15a illegally passes through the security gates 17a and 17b. Judge that there is a passerby. Similarly, when the first modified passer width w2'related to the second optical sensors 12a and 12b is larger than the predetermined first threshold value, the passer determination unit 15a invalidates the security gates 17a and 17b. It is determined that there is a passerby who has passed through.

The passer-by determination unit 15a acquires the estimated number of passers corresponding to the passer width w1 from the passer width calculation unit 14a, and when the estimated number of passers is 2 or more, the security gates 17a and 17b are illegal. It can also be determined that there is a passerby who has passed through. Similarly, the passer determination unit 15a acquires the estimated number of passers corresponding to the passer width w2 from the passer width calculation unit 14a, and when the estimated number of passers is 2 or more, the security gates 17a and 17b are used. It can also be determined that there is a passerby who has passed illegally.

FIG. 4 is a flowchart showing the operation processing of the information management control device 100B provided in the entry / exit management device 10B according to the second embodiment. The operation processing of the information management control device 100B shown in FIG. 4 is also started when the power of the entry / exit management device 10B is turned on and ends when the power is turned off.

Referring to FIG. 4, the operation processing of the information management control device 100B is the same as the operation processing steps S21 to S26 and S28 to S30 of the information management control device 100A shown in FIGS. 2 in steps S41 to S46 and S49 to S51. Therefore, the description thereof will be omitted. Therefore, step S47 and step S48 will be mainly described below together with the processing before and after the step S47.

After the process of calculating the passer widths w1 and w2 in step S46, the information management control device 100B proceeds to step S47 and performs a process of calculating the first modified passer widths w1'and w2'. The process of calculating the first modified passer width w1'and w2'is performed by the passer width calculation unit 14a in the information management control device 100B.

Specifically, the passer width calculation unit 14a calculates the estimated number of passers by rounding down the decimal point of the result of dividing the passer widths w1 and w2 by the first reference width REF1, respectively. Further, the passer width calculation unit 14a divides the passer widths w1 and w2 by the estimated number of passers, respectively, to calculate the first modified passer widths w1'and w2', respectively. Then, the passer width calculation unit 14a updates the calculated first modified passer widths w1'and w2'as new passer widths.

Subsequently, the information management control device 100B proceeds to step S48 and determines whether or not there is an unauthorized passage. As described above, the determination as to whether or not there is an illegal passage is performed by a comparison process between each of the first modified passer widths w1'and w2'and the first threshold value. This determination process is executed by the passer-by determination unit 15a in the information management control device 100B.

By the way, as the determination process in step S48, when the difference between the first modified passer widths w1'and w2'is larger than the predetermined second threshold value, it is possible to determine that there is an illegal passage. Further, when the passer determination unit 15a determines in step S48 that there is no illegal passage, the passer determination unit 15a may update the first threshold value based on the first modified passer widths w1'and w2'.

Further, the passer determination unit 15a determines that there is a passer who illegally passes through the security gates 17a and 17b when the estimated number of passers calculated by the passer width calculation unit 14a is 2 or more in step S48. It can also be determined.

In the entry / exit management device of the second embodiment described above, the first modified passer width is calculated based on the estimated number of passers calculated by the information management control device. Further, based on the first modified passer width calculated by the information management control device, it is determined whether or not the passer has illegally passed through the security gate. With this determination, even when a plurality of people try to pass through the security gate in a close tailgating state, it is possible to accurately and accurately determine the unauthorized passage. As a result, it becomes possible to prevent an unauthenticated person from entering the security area with high accuracy.

Embodiment 3.
FIG. 5 is an explanatory diagram showing a basic configuration of the entry / exit control device 10C according to the third embodiment of the present invention. FIG. 5 is an external perspective view showing the security gate installed in the entrance / exit passage of the security area from diagonally above. In FIG. 5, as compared with the entry / exit management device 10A shown in FIG. 1, the same components are designated by the same reference numerals, and the description thereof will be omitted.

Referring to FIG. 5, the entry / exit management device 10C according to the third embodiment is compared with the entry / exit management device 10A, and is processed by the passer width calculation unit 14b and the passer determination unit 15b provided in the information management control device 100C. The difference is that the functions are different and the counting unit 20 is newly provided.

The information management control device 100C according to the third embodiment includes a counting unit 20 that counts the number of identification readings corresponding to the number of different identification information read during a predetermined reading time in the information reading device 19. Be prepared. Further, the passer width calculation unit 14b divides each of the passer widths w1 and w2 by the number of identification readings obtained by the counting unit 20 to calculate the second modified passer width w1 ″ and w2 ″. .. Then, the passer width calculation unit 14b sets the calculated second modified passer widths w1 ″ and w2 ″ as the updated passer widths, respectively.

When the second modified passer width w1 ″ related to the first optical sensors 11a and 11b is larger than the predetermined first threshold value, the passer determination unit 15b illegally passes through the security gates 17a and 17b. Similarly, the passerby determination unit 15a determines that there is a passerby. Similarly, when the second modified passerby width w2 ″ related to the second optical sensors 12a and 12b is larger than the predetermined first threshold value. , It is determined that there is a passerby who has illegally passed through the security gates 17a and 17b.

FIG. 6 is a flowchart showing the operation processing of the information management control device 100C provided in the entry / exit management device 10C according to the third embodiment. The operation processing of the information management control device 100C shown in FIG. 6 is also started when the power of the entry / exit management device 10C is turned on and ends when the power is turned off.

Referring to FIG. 6, the operation processing of the information management control device 100C is the same as the operation processing steps S21 to S26 and S28 to S30 of the information management control device 100A shown in FIGS. 2 in steps S61 to S66 and S69 to S71. Therefore, the description thereof will be omitted. Therefore, step S67 and step S68 will be mainly described below together with the processing before and after the step S67.

After the process of calculating the passer widths w1 and w2 in step S66, the information management control device 100C proceeds to step S67 and performs a process of calculating the second modified passer widths w1 ″ and w2 ″. The process of calculating the second modified passer width w1 ″ and w2 ″ is performed by the passer width calculation unit 14b in the information management control device 100C.

Specifically, the counting unit 20 counts the number of identification readings corresponding to the number of different identification information read by the information reading device 19 during a predetermined reading time. Further, the passer width calculation unit 14b divides the passer widths w1 and w2 by the number of identification readings obtained by the counting unit 20, respectively, to calculate the second modified passer widths w1 ″ and w2 ″. Then, the passer width calculation unit 14b updates the calculated second modified passer widths w1 ″ and w2 ″ as new passer widths.

Subsequently, the information management control device 100C proceeds to step S68 and determines whether or not there is an unauthorized passage. As described above, the determination as to whether or not there is an illegal passage is performed by comparing each of the second modified passer widths w1 ″ and w2 ″ with the first threshold value. This determination process is executed by the passer-by determination unit 15b in the information management control device 100C.

By the way, as the determination process in step S68, it is also possible to determine that there is an illegal passage when the difference between the second modified passer widths w1 ″ and w2 ″ is larger than the predetermined second threshold value. Further, when the passer determination unit 15b determines in step S68 that there is no illegal passage, the passer determination unit 15b may update the first threshold value based on the second modified passer widths w1 ″ and w2 ″.

In the entry / exit management device of the third embodiment described above, the second correction passer width is calculated based on the identification reading number counted by the information management control device. Further, based on the second modified passer width calculated by the information management control device, it is determined whether or not the passer has illegally passed through the security gate. With this determination, even when a plurality of people try to pass through the security gate in a close tailgating state, it is possible to accurately and accurately determine the unauthorized passage. As a result, it becomes possible to prevent an unauthenticated person from entering the security area with high accuracy.

In each of the above-described embodiments, the security gates face each other, and the detection sensor has been described as an optical form provided at each of the facing security gates, but the present invention is not limited to such a form. If one side of the security gate and the detection sensor is a wall surface, the security gate and the detection sensor can be configured on one side, including a door structure that opens and closes. Further, the detection sensors may be provided at three or more locations.

In addition, by utilizing the passer-by width as individual biometric information such as fingerprints and irises and updating it as needed, it is possible to follow information that changes due to aging deterioration, and such biometric information can be used as personal information. Can be used as.

10A, 10B, 10C Entry / Exit Control Device, 11a, 11b First Optical Sensor, 12a, 12b Second Optical Sensor, 13 Passer Speed Calculator, 14, 14a, 14b Passer Width Calculator, 15, 15a, 15b Passer judgment unit, 16 doors, 17a, 17b security gate, 19 information reading device, 20 counting unit, 100A, 100B, 100C information management control device.

Claims (6)

With a security gate that has a door that can be opened and closed and is installed in the entrance / exit passage of the security area,
An information reading device that reads identification information held in an information recording medium carried by a passerby passing through the security gate.
An information management control device that manages the entry and exit of passersby based on the identification information and controls the opening and closing of the door.
A plurality of detection sensors installed at the security gate and installed at predetermined installation intervals in the passing direction of a passerby entering the security area to detect the passerby.
With
The information management control device is
A passerby speed calculation unit that calculates the passerby speed based on the detection results of each of the plurality of detection sensors, and a passerby speed calculation unit.
A passer-by width calculation unit that calculates a passer-by width, which is a dimension in the passing direction of a passer-by, for each of the plurality of detection sensors based on the detection results of each of the plurality of detection sensors and the passing speed.
A passer-by determination unit for determining the presence or absence of unauthorized intrusion into the security area based on the passer-by width calculated for each of the plurality of detection sensors is provided .
When at least one of the passer widths calculated for each of the plurality of detection sensors is larger than a predetermined first threshold value, the passer determination unit determines that the unauthorized intrusion has occurred.
When calculating the passer width for each of the plurality of detection sensors, the passer width calculation unit calculates and calculates the estimated number of passers by dividing the passer width by the first threshold value. When the estimated number of passersby is 2 or more, the entry / exit management device has the first modified passer width calculated by dividing the passer width by the estimated passer width as the passer width. The entry / exit management device according to claim 1 , wherein the first threshold value is an individual value associated with each of the different identification information. The entry according to claim 2, wherein the passer determination unit updates the first threshold value based on the passer width when the passer determines that there is no unauthorized intrusion when the passer passes through the security gate. Retirement management device. When the difference in the passer width calculated for each of the two different detection sensors among the plurality of detection sensors is larger than the predetermined second threshold value, the passer determination unit causes the unauthorized intrusion. The entry / exit management device according to any one of claims 1 to 3. The passage's judgment unit, the plurality of the case where the estimated passage toll calculated respectively from the detection time of the sensor is different, the intrusion is entering and leaving management apparatus according to claim 1 is determined to have occurred. With a security gate that has a door that can be opened and closed and is installed in the entrance / exit passage of the security area,
An information reading device that reads identification information held in an information recording medium carried by a passerby passing through the security gate.
An information management control device that manages the entry and exit of passersby based on the identification information and controls the opening and closing of the door.
A plurality of detection sensors installed at the security gate and installed at predetermined installation intervals in the passing direction of a passerby entering the security area to detect the passerby.
With
The information management control device is
A passerby speed calculation unit that calculates the passerby speed based on the detection results of each of the plurality of detection sensors, and a passerby speed calculation unit.
A passer-by width calculation unit that calculates a passer-by width, which is a dimension in the passing direction of a passer-by, for each of the plurality of detection sensors based on the detection results of each of the plurality of detection sensors and the passing speed.
A passer-by determination unit that determines the presence or absence of unauthorized intrusion into the security area based on the passer-by width calculated for each of the plurality of detection sensors.
And a counting unit for counting the number of readable identification corresponding to different numbers of the identification information read during the predetermined read time by the information reading device,
When the passer width calculation unit calculates the passer width for each of the plurality of detection sensors, the passer width calculated for each of the plurality of detection sensors is obtained by the counting unit. entering and leaving management apparatus of the second modification who passed widths calculated by dividing each by the identification reading number you with the passage's width.

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