JPH09297833A - Detector for number of persons - Google Patents

Abstract

PROBLEM TO BE SOLVED: To see through a plural men state camouflaged as one man, to make the removal of a companion to be through and to improve security by preventing the mechanism of one man detection in a gate zone from being immediately known by entering men. SOLUTION: A one man detection sensor 5 detects whether the entering person is one or plural under a situation where the presence or absence of a one man detection floor area in the gate zone 4 is unknown to the entering person. Namely, one man judgment is executed under the situation that the entering person does not know that one man detection floor area partitioned from the other peripheral area exists or not in the gate zone 4 and in which place a concrete boundary with the peripheral area exists even if the one man detection floor area exists. Thus, the plural entering persons are difficult to camouflage themselves as one man by outwitting the one man detection sensor 5 even if they try entering with accompanied persons by means of malice and the like. Thus, security improves.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects whether there is one person or a plurality of people who have entered a gate zone where a personal identification device is installed, and confirms the person under the condition that the person is the only person. The present invention relates to an apparatus for detecting the number of persons for detecting one person, which is mainly applicable to each system such as entry control, exit control, and entry / exit control.

[0002]

2. Description of the Related Art In recent years, when a person enters or leaves a room, he / she identifies whether or not he / she is a registered person himself / herself in response to a request to sufficiently enhance the security of laboratories, computer rooms, safe deposit boxes, offices, stores, etc. The system that opens and closes the door after it has been attracting attention.

In this case, in order to effectively prevent an illegal intruder who rushes into the room when the registered person qualified to enter the room opens and closes the door, the personal identification device is installed between the first and second two doors. It is installed in the gate zone that is divided into 2 areas, and when the first door is opened and there is only one person entering the gate zone, effective identification by the personal identification device is enabled, and after identification of the person, the second A system that opens the door and allows entry is extremely useful.

Conventionally, an apparatus for detecting that there is only one person entering the gate zone is for detecting one person who is large enough to stand in the center of the floor of the gate zone. By demarcating the floor area from the other surrounding areas, forming a pressure sensor in each area, and by entering a person only in the floor area for one person detection within the boundary line,
It is assumed that there is only one person entering the gate zone (Actual Kaihei No. 6-86168).

[0005]

However, in the personnel number detecting device as described above, the morale of all the registrants is very high, and it is a problem if all the registrants properly operate in compliance with one-person access to the gate zone. However, a malicious registrant, accompanied by a companion, enters the one-person detection floor area together, causes a false detection as if it was one person, and only the self-identification device performs identification processing, and then the unregistered person is identified. There is a problem that you will be allowed to enter the room with you. The floor area for one person detection is delineated on the floor surface, and it is clear that the registrant has the floor area for one person detection. It is obvious at a glance that even if you are in a limited space, you can use a piggyback, a hug, a shoulder bag, etc.
This is because it is extremely easy to enter only the floor area for one person detection without stepping on the demarcated boundary.

This problem occurs even if the registrant has no malicious intent and is compelled to enter by being threatened by a person trying to illegally enter. This is because the presence of the demarcated floor area for one person detection makes it possible for an illegal intruder to easily detect the mechanism of one person detection in the gate zone, and there is a risk that the registrant may be targeted by waiting.

Therefore, the above-mentioned number-of-persons detecting device cannot effectively detect the state of a plurality of persons who are disguised as one person, and the entrance management system to which this detecting device is applied rushes in by two doors. Although it can be surely excluded, there is a problem that the attendants cannot be surely excluded.

[0008] The main object of the present invention is to make a person's detection mechanism in a gate zone invisible to an intruder immediately, so that a plurality of persons disguised as one person due to malicious intent of the registrant or threat to the registrant. There is a need to provide a device for detecting the number of employees, which can contribute to improvement in security, such as effectively seeing through the above and thoroughly eliminating the accompanying entry.

[0009]

According to the first aspect of the present invention,
In order to achieve the above main purpose, FIG. 1, FIG. 2, FIG. 3, and FIG.
And any one of FIG. 5, FIG. 6, and FIG.
One person whose presence or absence is unknown in the gate zone 4 which has the door 1 and the second door 2 and in which the personal identification device 3 is installed inside the compartment is unknown to the intruder The sensor 5 is provided. Where the first and second
The doors 1 and 2 include a door that opens by rotating around a vertical axis, a sliding door that opens by sliding horizontally or vertically, or a so-called shutter, etc., and both manual and automatic It is a concept that includes. The personal identification device 3 is
It is most preferable to use the retina identification device because the false recognition rate is almost zero and the reliability is high, but a fingerprint identification device, a signature identification device, a voice identification device, or the like may be used.

The invention according to claim 2 is a more specific first aspect.
As an example, as shown in FIG. 1 and FIG. 2 or FIG. 3, the one-person detection sensor 5 detects the non-visible signal that separates the one-person area from the other area above the floor surface of the gate zone 4. A non-contact sensor 51 for sensing is used. Typical examples of the non-contact sensor 51 include an optical sensor, an infrared sensor, an ultrasonic sensor, a microwave sensor and the like.

The invention according to claim 3 is the more specific second aspect.
An example is provided, as shown in FIGS.
The one-person detection sensor 5 is embedded in the floor surface of the gate zone 4 and includes a pressure sensor 52 having no visual boundary line between the one-person area and the other area. The pressure sensor 52 is typically configured by arranging each sensing device such as a piezoelectric element, a pressure conductive sheet, a pressure conductive rubber, a pressure sensitive polymer, a pressure sensitive diode, etc. in a plane or dot shape.

The invention according to claim 4 is the more specific third aspect.
An example is provided, and as shown in FIG. 6, the one-person detection sensor 5 includes an image sensor 53 that takes an image of the inside of the gate zone 4 and determines whether the image is a single person image or a plural person image. The image sensor 53 includes a sensor that detects visible image information such as a CCD solid-state image sensor and a sensor that detects thermal image information (heat distribution) such as an infrared image sensor.

The invention according to claim 5 is the more specific fourth aspect.
As an example, as shown in FIG. 7, the one-person detection sensor 5 is provided with a heartbeat sensor 54 that determines whether a single-person heartbeat signal or a multiple-person heartbeat signal based on a sound signal inside the gate zone 4. It was made. Heartbeat sensor 54
Is to detect human heart sounds at a certain rhythm by removing noise and mechanical vibrations of a clock or the like from a sound signal picked up from a ground point of a person such as a floor mainly through a super-sensitive microphone.

[0014]

According to the invention of claim 1, as shown in any one of FIG. 1 and FIG. 2, FIG. 3, FIG. 4 and FIG. 5, FIG. 6 and FIG. It is detected whether the number of intruders is one or more than one in a situation where it is unknown to the intruder whether or not there is a floor area for detecting one person in the gate zone 4. That is, whether or not the intruder has a floor area for one person detection that is partitioned from the other peripheral areas within the gate zone 4, or even if there is a floor area for one person detection, it does not correspond to the surrounding area. One person will be judged under the situation that it is not known where the specific boundary line of is. Therefore, even if an attempt is made to enter the accompanying room due to malicious intent or intimidation, it is difficult for a plurality of intruders to disguise themselves as one person by lining up the one-person detection sensor 5. Therefore, it is possible to thoroughly eliminate the accompanying room and contribute to improving security.

According to the second aspect of the invention, FIGS.
Alternatively, as shown in FIG. 3, the non-contact sensor 51 divides the one-person area and the other area above the floor surface of the gate zone 4, and the division boundary is detected by the detection of the invisible signal. From the point that the line is hidden,
It is possible to effectively detect the entry of multiple people and achieve the intended purpose satisfactorily.

According to the third aspect of the invention, as shown in FIGS. 4 and 5, the pressure sensor 52 is embedded in the floor surface of the gate zone 4, and the visual boundary line between the one-person area and the other area is formed. Since there is no such entry, it is possible to effectively detect the entry of multiple people and achieve the intended purpose satisfactorily.

According to the fourth aspect of the present invention, as shown in FIG. 6, the image sensor 53 does not hide the physical one-person detection floor area from an intruder. Regardless of the presence or absence of such areas, it is possible to effectively detect the entry of multiple persons and achieve the intended purpose satisfactorily because it is determined based on the image signal whether there is one person or multiple persons. be able to.

According to the fifth aspect of the invention, as shown in FIG. 7, the heartbeat sensor 54 is not such that the physical floor area for one person detection is not known to an intruder. Regardless of the presence or absence of such areas, it is determined based on the sound signal whether it is a single person or a plurality of people, so it is possible to effectively detect the entry of multiple people and achieve the desired purpose satisfactorily. be able to.

[0019]

1 and 2, R is a room such as a laboratory, a computer room, a safe deposit box, an office, and a store where security is to be protected. A box-shaped gate zone 4 having a first door 2 and a second door 2 is defined. Each of the doors 1 and 2 is provided with a transparent body which is wholly or partly made of tempered glass or the like so that the inside and outside can be visually confirmed and a closed room accident can be prevented. The size of the gate zone 4 is, for example, a square shape of 90 cm square in a plan view so that one adult can enter the body while standing and the free movement of limbs is not hindered. , The height from floor 41 to ceiling 42 is 21
It is about 0 cm. The size may be arbitrarily large or small according to the frequency of traffic of people. The first door 1 is automatically opened for a certain period of time by inputting a personal identification number from the ten-key operation unit 6, and a person who is expected to enter the room can enter the gate zone 4. From the inside of the gate zone 4, it is possible to freely go outside by operating the touch switch 7.

Inside the gate zone 4, a personal identification device 3 composed of a retina identification device is installed. The viewing window for detecting the retina pattern is arranged according to the height of the eyes of a short person. The retina identification device 3 reads a blood vessel pattern on the retina using infrared rays, and identifies which person's retina pattern the detected retina pattern matches in advance. .

Inside the gate zone 4, a person who detects whether there is one person or a plurality of persons under the circumstances where the presence or absence of the floor area for detecting one person in the gate zone 4 is unknown to the person. A detection sensor 5 is provided. 1 and 2, the person detection sensor 5 is divided into a person area A and another area B in the upper part of the floor of the gate zone 4 by several tens of centimeters (for example, 30 centimeters), and an obstacle is detected. Other person detection sensors 51a to 51f for detecting a companion who is another person by detection, and a person detection sensor 51g for detecting a fixed position of the person installed below the personal identification device 3, all of which are non-contact by sensing an invisible signal. It is configured by using the expression sensor 51.

The details of the non-contact type sensor 51 are necessary and sufficient, for example, 70 cm square, so that one adult can face the personal identification device 3 just before the personal identification device 3. And one person area A
(Dotted area) is defined as another peripheral area B,
It is placed above the floor above the floor (about 30 cm above the floor), which detects the situation that a person does not straddle the boundary between the two areas A and B, and one person is standing only in the one area A. Six stranger detection sensors 51a to 51f
And a person detecting sensor 51g for confirming the person entering the person area A below the personal identification device 3 (slightly below the chest).
Consisting of Further, in the embodiment, ceiling sensors 81 and 82 also made of non-contact type sensors are provided near the back surface of the ceiling 42 in order to more surely exclude a plurality of persons entering the room due to a piggyback ride, a shoulder car, or the like.

The sensors 51a to 51f and 51g forming the non-contact type sensor 51 can be installed in the doors 1 and 2, respectively, but in order to improve the installability and the stability of detection, they are all gates. It is installed on the partition wall surfaces 43 and 44 of the zone 4. The other person detection sensors 51a and 51b that demarcate the parallel boundaries with the doors 1 and 2 are transmission type optical sensors or ultrasonic sensors in which a transmitter and a receiver face each other. The stranger detection sensors 51c, 51d, 51e, 51f that demarcate orthogonal boundaries with the doors 1, 2, as well as the person detection sensor 51g and the ceiling sensors 81, 82,
A reflection type optical sensor or ultrasonic sensor is used.

Each sensor 51a-51f, 51g, 8
1, 82 are input to the on-site personnel number determination means 510 built on the controller 100 including a personal computer, a microcomputer, or a sequence controller. With the other person detection sensors 51a to 51f at the feet, there is no obstacle on the locus of the invisible signal such as light guide, the person does not straddle the boundary between the two areas A and B, and the person detection sensor 51g detects the one person area A. In addition to detecting that one person is standing alone, the ceiling sensor 81,
When it is surely detected by 82 that there is no obstacle on the locus of the invisible signal such as the light guide and there is no piggyback piggyback,
The number of personnel entering gate zone 4 is determined to be one. Then, only when there is one intruder, the processing by the personal identification device 3 can be effectively performed by the identification permission means 30 provided on the controller 100 for the first time, and whether the detected retina pattern matches the registered retina pattern or not. The identification result is effectively used for the subsequent processing.

When the detected pattern and the registered pattern match and it is determined that the person is a qualified person for entering the room, the admission means 20
As a result, the second door 2 is automatically opened for a certain period of time, and the registrant can enter the room R properly. After this entry, the second door 2 is locked again, and its opening from the gate zone 4 side is blocked. The person who enters the room by this series of entry management is the only person who is qualified to enter the room, and it is possible to strictly cut off the unregistered person and the accompanying person due to malicious or threatening. The second door 2 can be freely opened from the indoor side by operating the touch switch 9, and together with the first door 1, the second door 2 can be freely exited. However, when there is a person in the gate zone 4, an interlock for disabling the operation of the touch switch 9 is applied. It should be noted that when leaving the room, as in the case of entering the room, the identification processing may be performed by the personal identification device 3 to manage the exit.

The controller 100 has a printer 1 for recording the operating status of the personal identification device 3 and the history of entering the room.
01 and keyboard 102 used for program management, etc.
Are connected. In addition, a surveillance camera may be installed inside the gate zone 4 to monitor the comings and goings of people for 24 hours. Further, in addition to the non-contact type sensor 51 that originally detects one person in the gate zone 4, a dummy sensor may be provided to more surely eliminate the possibility of reading the sensor locus such as light guide.

FIG. 3 shows an example in which the gate zone 4 is made relatively wide including the door pocket parts 45 and 46 of the doors 1 and 2, and the non-contact type sensor 51 is provided with a person detecting sensor 51g (optical sensor or ultrasonic wave). In addition to sensors, etc., several tens of centimeters above the floor (for example, 1
0 cm) multiple stranger detection sensors 51h, 51j, 51k, 5 with a linear sensor locus consisting of optical sensors and ultrasonic sensors installed near the ankle.
1 m and a plurality of area sensors 51p, 51q, 51r for detecting a person in a certain area (dotted line area), which are composed of infrared sensors installed on the ceiling, are used. Even in this case, when a person other than the person detecting sensor 51g detects a person, it is determined that there are a plurality of persons, the operation of the personal identification device 3 is invalidated, and when only the person detecting sensor 51g detects a person, the person identifying device 3 is detected. It becomes possible to enter the room after the processing of. In addition, in FIG. 3, 31 is a shelf for storing goods.

4 and 5 show the one-person detection sensor 5,
The pressure sensor 52 is embedded in the floor surface 41 of the gate zone 4 and has no visual boundary line between the one-person area and the other area. That is, a rectangular first pressure sensor 52a having a size corresponding to the one-person area A and a substantially U-shaped second pressure sensor 52b corresponding to the peripheral area B are arranged on the back surface of the floor 41. Each of the sensors 52a and 52b is composed of a piezoelectric sheet having a bimorph structure. Reference numeral 40 is an inner floor material that is slightly flexible and allows the deformation of the piezoelectric sheet.
Each of the sensors 52a and 52b is an on-site personnel number determination means 520.
The first pressure sensor 52a is turned on, and it is determined that the person is alone. In FIG.
Each door 1 and 2 uses doors with electronic locks that can be manually opened and closed by levers, and these doors are arranged orthogonally to form a passageway L
Shaped to save space. The second pressure sensor 52b may be a three-piece segment corresponding to each side, or the pressure sensor 52 may be a segment sheet corresponding to each of the areas A and B in the first place. It may be configured by using a number of point-shaped pressure-sensitive switches that are installed more densely and detecting the number of foot shapes. Although not shown, ceiling sensors 81 and 82 similar to those in FIGS. 1 and 2 may be provided on the ceiling.

FIG. 6 shows an image sensor 53, which is a CCD type solid-state image sensor (so-called CCD camera) for the single-person detection sensor 5, which photographs the inside of the gate zone 4 from the ceiling and determines whether it is an image of a single person or a plurality of persons. Is used. The captured image is an on-site personnel number determination unit 530.
In the image compression unit 531, a portion having the same tone as the color of the inner surface (mainly including the floor surface, the wall, and the inner surface of the door) of the gate zone 4 having a specific color tone (a single color or the like is preferable). Is cut from four sides and compressed to narrow down the image area of the intruder part with different tones. Then, the size determination unit 5
In 32, the vertical and horizontal dimensions of the narrowed down image are measured, and it is determined whether or not it is within the allowable value of the reference one-person area. If it is within the allowable value, it is determined that one person is present, and the individual identification device 3 can be effectively identified. By the way, as for the image processing, shape recognition processing or the like for checking the appearance feature of a person may be performed. In addition, in FIG. 6, each of the doors 1 and 2 is
It has a double door type automatic door.

In FIG. 7, the one-person detection sensor 5 uses a heartbeat sensor 54 for determining whether it is a single-person beat signal or a plural-person beat signal based on a sound signal inside the gate zone 4. The heartbeat sensor 54 is installed on the floor 41 of the gate zone.
An ultra-sensitive microphone section 54a installed on the back of the
From the input signal, a noise removing unit 54b that removes a relatively large noise such as a breathing sound that exceeds a certain level, and a mechanical vibration removing unit 54c that removes regular mechanical vibration of 60 seconds / minute such as the second hand of a clock. Become. Then, the heart sound signal from which noise and mechanical vibrations have been removed is input to the on-site personnel detection means 540, and whether the heart sound pattern is a single time series pattern or 2
It is determined whether or not the above patterns are overlapped, and individual identification is permitted in the case of a single pattern. still,
In order to pick up an extremely delicate signal called heart sound, each of the doors 1 and 2 surrounding the gate zone 4, the ceiling 42 and the like has a soundproof wall structure.

The personnel number detecting device according to the present invention and the management system for entering a room, etc. to which the device is applied are not limited to the above-mentioned application to a laboratory or the like, but are also applicable to intelligent office buildings, condominiums, hotels, pachinko halls, games. It can be applied to a wide range of areas such as centers and sports clubs.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of FIG.

FIG. 3 is a plan sectional view showing a modified example of the first embodiment.

FIG. 4 is a plan sectional view of the second embodiment.

5 is an enlarged sectional view of the floor surface of FIG.

FIG. 6 is a schematic plan view of the third embodiment.

FIG. 7 is a vertical cross-sectional view of the fourth embodiment.

[Explanation of symbols]

 1; 1st door 2; 2nd door 3; personal identification device 4; gate zone 5; one-person detection sensor 51; non-contact sensor 52; pressure sensor 53; image sensor 54; heartbeat sensor

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Claims (5)

[Claims] 1. A gate zone (4) having a first door (1) and a second door (2) in which a personal identification device (3) is installed inside a compartment, inside the gate zone (4). 1. A personnel number detection device, characterized in that a person detection sensor (5) whose presence / absence of a floor area for one person detection is unknown to an intruder is provided. 2. The one-person detection sensor (5) is a non-contact type sensor (5) that senses a non-visible signal that divides a one-person area from another area above the floor surface of the gate zone (4).
The personnel number detecting device according to claim 1, which comprises 1). 3. The one-person detection sensor (5) according to claim 1, comprising a pressure sensor (52) embedded in the floor of the gate zone (4) and having no visual boundary line between the one-person area and the other area. Number of personnel detection device. 4. The personnel number detection according to claim 1, wherein the one-person detection sensor (5) comprises an image sensor (53) for photographing the inside of the gate zone (4) and judging whether it is a single person image or a plural person image. apparatus. 5. The one-person detection sensor (5) comprises a heartbeat sensor (54) for determining a single-person beat signal or a plural-person beat signal based on a sound signal inside the gate zone (4). Number of personnel detection device described.