JPH11213196A - Leaving/entering control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leaving/entering control system with a highly accurate one person detecting function. SOLUTION: Personal identification information on a person to leave/enter a section is detected and the detected personal identification information is judged whether or not it is personal identification information on a person having a freed access to the section by the leaving/entering control system. Namely, the leaving/entering control system is provided with personal identification means (1, 3) to output personal specific information to specify the person having the freeaccess to the section when the detected personal identification information is the one on the person having the freeaccess to the section, weight of that person is preliminarily stored, the weight of the person to leave/enter the section is detected, and an absolute difference between the weight of the detected person and the weight stored corresponding to the person specified by the personal specific information outputted from the personal identification means is judged whether it is equal to or less than a prescribed value or not. And when the absolute value is equal to or less than the prescribed value, the number of the person to leave/enter the section is judged as one by one person judging means (7, 8').

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for identifying an individual using an ID card or the like, measuring the weight, determining that the identified individual is the only identified individual, and entering a specific area. The present invention relates to an entry / exit management system with a same person detection function that manages entry / exit.

[0002]

2. Description of the Related Art IDs of magnetic cards, contactless cards, etc.
(Personal identification) Access control systems that identify individuals using biometric features such as cards, fingerprints, voiceprints, and retinal patterns are widely used to control access to places where general people want to restrict access. It's being used.

[0003] Particularly, in an office or the like, an ID card for access control is used also as a name tag attached to a chest, and is used for attendance management by utilizing a feature of an access control system in which a history of people who enter and exit remains. And its applications are expanding.

In such a system, access control is generally performed by combining an individual identification device and a door, and unlocking the door only when an object that can pass through the door comes. Fortunately, even if someone fortunately opens the door and does not pass through the personal identification device, it may still pass through the door. Therefore, in a particularly important place, a method may be adopted in which two doors are used to create a space in which one person can enter, and an individual is identified in this space. Naturally, the two doors are interlocked, and while either of the two doors is open, the other is not opened to prevent the door from passing through. Furthermore, in order to detect that there is only one person in the space between the two doors, the weight of a person entering the space is measured, and a number of light beams are spread in multiple directions in the space, A method of detecting that a person is alone by the light-shielding pattern is also used.

[0005] The space between the two doors must be adapted to the fattest and largest person who enters and exits, and if the space is small, two or more people can easily access it. Because you can enter. In particular, a method of measuring the weight of a person entering a space is relatively frequently used because the configuration is simpler and the calculation for recognizing one person is easier than other methods for detecting one person.

On the other hand, in order to reduce the allowable range of determination based on weight, if a person who tries to enter or leave has any luggage, the weight of the luggage often prevents the person from being determined to be alone. For this reason, a passage for luggage holders is provided and security guards are forced to control access, and a TV camera is provided in the passage, and it is ensured that security guards are watching the monitor all the time and that there is only one person. Although measures such as monitoring are taken, it is not only if the function of the person detection system is not fully utilized, but it is necessary to provide a passage for the baggage holder separately from the general passage In many cases, security officers were given excessive responsibility, which hindered the spread of access control systems with a single-person detection function.

As described above, access control systems using personal identification include those using an ID card such as a magnetic card and a non-contact card, and those utilizing human biological characteristics such as fingerprints, voice prints and retinal patterns. It has been put into practical use,
All have doors to restrict entry and exit,
If there is one person who can get in and out and the door can be opened, many people who are not allowed to enter and exit have the drawback that they can enter and exit before the door closes.

In order to compensate for the drawback, a function called "one person detection" is added to the access control system, and it is detected that there is only one person in the space between the two doors. Is preventing. The method of detecting a single person includes a method of measuring the weight of a person in the space, a method of measuring the projected area of a person in the space, and the like.

The present invention relates to an entry / exit management system with a one-person detection function for preventing a plurality of persons from entering / exiting at the same time by measuring the weight of persons entering / exiting.

FIG. 7 is a top view of a generally used access control system. In FIG. 7, reference numeral 1 denotes a card reader for reading personal identification data written on an ID card, and 2 denotes a door for restricting free access and is locked by an electric lock or the like. Reference numeral 3 denotes a control unit for determining whether card data read by the card reader 1 is data of a person who can enter and exit the door 2, and reference numeral 4 denotes an area where entry and exit are restricted.

As shown in FIG. 8, the control unit 3 is electrically connected to the card reader 1, and the electric lock provided on the door 2 is electrically connected to the control unit 3.

In FIG. 7 and FIG. 8, a person who is allowed to enter and leave the door 2 on the system is
When the D card data is read, the control unit 3 determines that the card holder can enter and exit, and unlocks the electric lock for a predetermined time. The holder of the authorized ID card can open the unlocked door and enter the restricted area 4. Naturally, I
Even if a person who does not have a D card attempts to enter the area through the door 2, the person cannot enter because the door 2 is locked. Also, even if you have an ID card, the person who cannot access this door 2 on the system can use the card reader 1
Even if the card is read, the control unit 3 determines that the user cannot enter or exit, so the electric lock is not unlocked and the door 2 cannot be opened.

In the examples shown in FIGS. 7 and 8, as long as there is only one person who can enter and exit the door 2, the card data of the person is read into the card reader 1, the door 2 is opened, and the door 2 is manually operated. The door 2
It is possible to put people who cannot get in and out of the restricted area 4.

In this example, an ID card is used as a personal identification medium for restricting entry and exit. However, a system using biometric features such as a fingerprint and a voiceprint as a personal identification element has the same operation and disadvantages as the system. . The basic operation is the same in a system using the manual door 2 as in the example of FIG. 7 and in a system using other restricting means such as an automatic door.

FIG. 9 is a top view of a conventional access control system to which a one-person detection function is added. In FIG. 9, 5 is a first door for entering restricted area 4, 2 is restricted area 4
The second door 6 for entering the space between the first door 5 and the second door 2 is a space where one person can enter.
Is a card reader provided in the space 6; 7 is a scale provided on the floor of the space 6 for measuring the weight of persons entering and exiting; 3 is card data read by the card reader; The first control unit 8 that determines whether the data is data of a person who can enter and exit the room 6 determines that the person in the space 6 is one if the weight measured by the scale 7 is equal to or less than a predetermined value. 2 is a control unit, 9 is an AND circuit, and 4 is a restricted area.

As shown in FIG. 10, the first controller 3 is electrically connected to the card reader 1, the second controller 8 is electrically connected to the balance 7, and the AND circuit 9 is connected to the first controller. The electric lock provided on the door 2 is electrically connected to the AND circuit 9. The electric lock provided on the door 2 is electrically connected to the unit 3 and the second control unit 8.

In FIG. 9 and FIG. 10, when a person A trying to enter the restricted area 4 stands in front of the first door 5, the first door 5 is opened by a human sensor (not shown) and A It is possible to enter a space 6 sandwiched between the first door 5 and the second door 2. When the first door 5 is closed and A causes the card reader 1 to read the card data, the first control unit 3 determines whether the card data of A can enter the restricted area 4 or not. At the same time, the weight of A is measured by the scale 7, and if the value is equal to or less than a predetermined value, the second controller 8 determines that only one person is in the space 6. The space 6 is set to an area as small as possible, with one person, and a scale 7 for measuring the weight of the pedestrians is set as the entire surface of the floor if the floor area of the space 6 can be made as large as possible. It is necessary to prevent anyone other than the person who is performing the measurement from entering the space 6.

If the card data of A can enter the restricted area 4 and the measured weight is equal to or less than the predetermined value, the AND circuit 9 instructs the electric lock of the second door 2 to unlock. And the electric lock is unlocked and A can open the door 2 and enter the restricted area 4. Various sensors, such as a far infrared detection sensor, a mat switch, and a photoelectric tube, can be used as a human sensor. In addition, when a person who enters and exits without using the sensor presses the push button switch, the first door 5 is pressed.
May be opened, or the first door 5 may be freely openable and fastened.

[0019]

As described with reference to FIGS. 9 and 10, a system for judging that only one person enters the restricted area 4 by weight has been put to practical use. In order to determine whether or not to enter the area 4, it was necessary to use the weight of the heaviest person in the area 4 as a criterion. Also, the space 6 sandwiched between the first door 5 and the second door 2 must be determined in size based on the largest (thick) person among those who can enter the restricted area 4. Must.

If a light and thin person enters the restricted area 4, the possibility of two persons being able to enter at the same time, both in terms of the space and the weight of the space 6, can be discarded. Did not. Also, if a thin and light person tries to enter or leave with some kind of luggage, it will be possible to enter and leave if the weight is within the restricted range, and it will be understood that bringing luggage into restricted area 4 or taking luggage out of restricted area 4 I can't do it.

Originally, the restricted area 4 in which the detection of one person is to be performed is generally an important area, and it is not possible to freely bring goods into and out of the area. There are many.

However, in the conventional entry / exit management system with the one-person detection function, it is difficult to grasp the luggage even if a person who goes in / out carries the luggage within the limit weight of the one-person detection function.

[0023] In addition, a holder of luggage exceeding the weight limit of the one-person detection function cannot pass through the access control system with the one-person detection function, and a separate passage for the luggage holder is provided.
It was necessary to control the entrance and exit while monitoring with a camera, and the guards had to directly control the entrances and exits, so the equipment was large and the burden on the guards was heavy.

According to the present invention, the weight of each person entering and exiting the restricted area is measured and stored in advance, and the weight of each person entering and exiting the area is measured and compared with the stored weight of the same person, If the absolute value of the difference between the two is equal to or less than a predetermined value, it is determined that the person is a single person, thereby providing a highly accurate entry / exit management system with a person detection function.

Further, the present invention has a means for measuring the weight of the baggage carried by the person entering and leaving, so that the presence or absence of the person carrying the baggage can be easily grasped. It is an object of the present invention to provide a high-performance, space-saving, and low-cost access control system with a human detection function that does not require the installation of a passage.

Further, according to the present invention, the means for measuring the weight of the person entering and exiting and the means for measuring the weight of the baggage carried by the person entering and exiting are the same, and by switching and using the same, further saving can be achieved. It is intended to provide an access control system with a function for detecting one person in a space.

[0027]

According to a first aspect of the present invention, personal identification information of a person who wants to enter or leave a specific area is detected as detected personal identification information, and the detected personal identification information is detected. It is determined whether or not the identification information is personal identification information of a person who can enter and leave the specific area. If the detected personal identification information is personal identification information of a person who can enter and leave the specific area, the identification area Personal identification means (1, 3 ') for outputting personal identification information for identifying the person who is going to enter and exit from the area; and storing the weight of a person who can connect to the specific area in advance while being connected to the personal identification means. As the detected person weight, the weight of the person who is storing and trying to enter and exit the specific area is detected as a detected person weight, and the detected person weight is output from the personal identification means. Was Comparing the absolute value of the difference between the stored person weight and the stored person weight corresponding to the person specified in the personal identification information with a predetermined value, and when the absolute value of the difference is equal to or less than the predetermined value; In addition, one person judging means (7, 8) for judging that the person who tries to enter or leave the specific area is one person
') And an access control system characterized by having:

According to a second aspect of the present invention, the above-mentioned first aspect is provided.
In the access control system according to the aspect, the one-person determination unit determines that the person who wants to enter or leave the specific area is one when the absolute value of the difference is equal to or less than the predetermined value, and An access control system is provided which outputs a one-person signal indicating that the person who wants to enter and exit is one as an access permission signal.

According to the third aspect of the present invention, the above-mentioned second aspect is provided.
In the access control system according to the aspect, the access permission means is connected to the one-person determination means and permits the person who wants to enter and exit the specific area to enter and exit the specific area only when receiving the access permission signal. An access control system characterized by further comprising (2) is obtained.

According to a fourth aspect of the present invention, the above-mentioned first aspect is provided.
In the access control system according to the aspect, the one-person determination unit is configured such that, when the person who wants to enter or leave the specific area has luggage, the person who wants to enter or leave the specific area has the luggage. The luggage weight measuring means (1) measures the weight of the luggage as the measured luggage weight.
0) and total weight measuring means (7) for measuring the total weight of the person trying to enter and leave the specific area and the luggage carried by the person as the measured total weight.
And, connected to the personal identification means, the luggage weight measurement means, and the total weight measurement means, the weight of a person who can enter and exit the specific area in advance is stored as a stored person weight, By subtracting the measured luggage weight from the measured total weight, the weight of the person trying to enter and exit the specific area is detected as the detected person weight, and the detected person weight and Comparing the absolute value of the difference between the stored person weight and the stored person weight corresponding to the person specified by the personal identification information output from the personal identification means with the predetermined value, When the absolute value is equal to or less than the predetermined value, the control unit (8 ″) that determines that the person who wants to enter and exit the specific area is one person and outputs an access permission signal is provided. Immigration pipe System is obtained.

According to the fifth aspect of the present invention, the above-mentioned fourth aspect is provided.
In the access control system according to the aspect, an access control system is obtained in which the same weight measuring means (7) is switched and used as the luggage weight measuring means and the total weight measuring means.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a top view of an access control system with a person detection function according to a first embodiment of the present invention. FIG. 2 is a diagram showing an electrical connection relationship of the components in FIG.

1 and 2, 5 is a first door for entering the restricted area 4, 2 is a first door for entering the restricted area 4, and 6 is a first door for entering the restricted area 4. Second door 2
A space where one person can enter, sandwiched between
Is a card reader provided in the space 6, and 7 is a scale provided on the floor of the space 6 for measuring the weight of persons entering and leaving.

Reference numeral 3 'denotes a first control unit for determining whether or not card data (personal identification information) read by the card reader 1 is data of a person who can enter and exit the door 2 (personal identification information). That is, the card reader 1 functions as means for detecting the personal identification information of a person who attempts to enter or leave the restricted area 4 as the detected personal identification information. Further, the first control unit 3 ′ stores in advance the personal identification information of the person who can enter and exit the restricted area 4 as the stored personal identification information, and the detected personal identification information from the card reader 1 is stored in the first control unit 3 ′. It is to judge whether or not it matches one of the stored personal identification information. That is, the first control unit 3 ′ determines whether the detected personal identification information is personal identification information of a person who can enter and exit the restricted area 4.
When the detected personal identification information is the personal identification information of a person who can enter and leave the restricted area 4, the first control unit 3 ′ The information is output to the second control unit 8 '.

As described above, the card reader 1 and the first control unit 3 'detect the personal identification information of a person who tries to enter or leave the restricted area 4 as the detected personal identification information.
It is determined whether the detected personal identification information is personal identification information of a person who can enter and leave the restricted area 4, and if the detected personal identification information is personal identification information of a person who can enter and leave the restricted area 4 Then, it functions as personal identification means for outputting personal identification information for identifying the person who is going to enter or leave the restricted area 4 to the second control unit 8 '.

The scale 7 detects the weight of the person who tries to enter or leave the restricted area 4 as the detected person weight. The second control unit 8 ′ is connected to the first control unit 3 ′, and stores the weight of a person who can enter and leave the restricted area 4 in advance as a stored person weight. The absolute difference between the detected detected human weight and the stored human weight stored corresponding to the person specified by the personal identification information output from the first control unit 3 '. It is determined whether or not the value is equal to or less than a predetermined value, and when the absolute value of the difference is equal to or less than the predetermined value, it is determined that the one person who wants to enter or leave the specific area is a logic “1”. The output signal (one-person signal) is output as an in / out permission signal.

As described above, the scale 7 and the second control unit 8 'are connected to the personal identification means (1, 3') and store the weight of a person who can enter and exit the restricted area 4 in advance. The weight of the person who is stored as the weight of the person and tries to enter and exit the restricted area 4 is detected as the detected weight of the person, and the detected weight of the person and the personal identification means (1, 3) are detected. ') Determining whether or not the absolute value of the difference from the stored person weight stored corresponding to the person specified by the personal identification information output from the personal identification information is equal to or less than a predetermined value;
When the absolute value of the difference is equal to or less than the predetermined value, a one-person determination that outputs a signal indicating that the person who is going to enter or leave the specific area is one person (that is, the above-mentioned one-person signal) as an entrance / exit permission signal. Act as a means.

The electric lock of the door 2 receives an access permission signal, unlocks the electric lock, and acts as access permission means for permitting the person who wants to enter and exit the restricted area 4 to enter and exit the restricted area 4. I do.

Person A who enters and exits the system of FIGS. 1 and 2
The operation when is used is as follows. Restricted area 4
When a person A who is going to enter the room stands in front of the first door 5, the first door 5 is opened by a human sensor (not shown), and A moves to the first door 5 and the second door 2. It is possible to enter the interposed space 6. The first door 5 is closed and A is the card reader 1
When the first controller 3 ′ reads the card data, the first controller 3 ′ determines whether the card data of A can enter the restricted area 4. At the same time, the weight of A is measured by the scale 7, and the weight of A is measured in advance by the second control unit 8 '.
If the absolute value of the difference is equal to or smaller than a predetermined value, it is determined that the person in the space 6 is A alone.

If the card data of A can enter the restricted area 4 and the absolute value of the difference between the measured weight and the previously measured weight of A is equal to or smaller than a predetermined value, A lock command is issued to the electric lock of the second door 2 so that the electric lock is unlocked and A can open the door and enter the restricted area 4.

As the human sensor, various sensors such as a far-infrared detection sensor, a mat switch, and a photoelectric tube can be used. Also, a person who goes in and out without using the sensor may open the first door 5 by pressing the push button switch,
The door 5 may be one that can be freely opened and closed.

The predetermined value for comparing the absolute value of the difference between the weight measured by the balance 7 and the previously measured weight of the same person is set in the range of several hundred grams to several kilograms. Is done. The smaller this value is, the higher the probability of being judged as the same person is, but on the other hand, it goes without saying that the malfunction rate increases due to changes in clothes due to temperature fluctuations, differences in weight before and after meals, etc. Among them, the change in clothes is particularly influential, so air conditioning is required and uniforms must be worn. A range value can be set.

As described above, according to the present embodiment, the restricted area 4
Only people who are allowed in and out of
To configure an access control system that not only can improve the reliability of the access control system, but also has the effect of preventing unauthorized use such as lending and borrowing a card easily when an ID card or the like is used as a personal identification medium. be able to.

FIG. 3 is a top view of an access control system with a person detection function according to a second embodiment of the present invention. FIG. 4 is a diagram showing an electrical connection relationship of the components in FIG.

The entry / exit management system with the person detection function shown in FIGS. 3 and 4 is the same as the entry / exit management system with the person detection function shown in FIGS. 1 and 2 except for the following. That is, in the access control system with the one-person detection function shown in FIGS. 3 and 4, when a person who wants to enter or leave the restricted area 4 has a baggage, It has a scale (luggage weight measuring means) 10 for measuring the weight of the luggage, which measures the weight of the luggage being carried as the measured luggage weight. Further, the access control system with the one-person detection function shown in FIGS. 3 and 4 calculates the total weight of the person who tries to enter or leave the restricted area 4 and the luggage carried by the person.
As the measured total weight, a scale 7 is used as a total weight measuring means for measuring. Further, the access control system with the one-person detection function shown in FIGS. 3 and 4 stores in advance the weight of a person who can enter and exit the restricted area 4 as a stored person weight. The weight of the person trying to enter or leave the restricted area 4 is detected as the detected person weight by subtracting the measured weight of the load on the scale 10 for measuring the weight of the load from the total weight obtained. Then, the stored person stored corresponding to the detected person weight and the person specified by the personal identification information output from the first control unit 3 'of the personal identification means. It is determined whether or not the absolute value of the difference from the weight is equal to or less than the predetermined value. If the absolute value of the difference is equal to or less than the predetermined value, only one person attempts to enter or leave the restricted area 4. Is indicated by a logic “1” (immediately , And a second control unit 8 "for outputting the person signal) as the out enable signal. Above is different from the person detection function access control system shown in FIGS.

When the system shown in FIGS. 3 and 4 is used by a person A who does not carry luggage, the operation is the same as that shown in FIGS. 1 and 2 because the scale 10 for measuring the weight of the luggage is not used. Is the same as

The operation when the system shown in FIGS. 3 and 4 is used by the person B carrying the luggage is as follows. When a person B trying to enter the restricted area 4 stands in front of the first door 5, the first door 5 is opened, but B carrying the luggage has the first door 5 and the second door 2. The luggage is put on the scale 10 before entering the space 6 sandwiched between the two. When the weight of the package is measured, the value is stored in the second control unit 8 ″. B takes the package whose measurement has been completed, and B is the space between the first door 5 and the second door 2. When the first door 5 is closed and B reads the card data into the card reader 1, the first control unit 3 'determines whether the card data of B can enter the restricted area 4. At the same time, the weight of B is measured by the scale 7, and the second controller 8 "compares the value obtained by subtracting the weight of the baggage from the measured weight of B with the previously measured weight of B. If the absolute value of the difference is equal to or smaller than the predetermined value, it is determined that B is the only person in the space 6. It should be noted that if the weight of the luggage is displayed during and after the measurement by a lamp or the like, the system becomes easier to use.

The card data of B can enter the restricted area 4, and the difference between the value obtained by subtracting the weight of the baggage from the weight measured by the scale 7 and the weight of B previously measured. If the absolute value is equal to or less than the predetermined value, the above-mentioned access permission signal is sent to the electric lock of the door 2 as an unlock command, the electric lock is unlocked, and B opens the door and enters the restricted area 4. be able to. B does not measure the weight of luggage first
When entering the space 6 sandwiched between the door 5 and the second door 2, the weight of B is measured by the amount of the luggage. Since it is determined that B is not alone, the access permission signal is not transmitted, the second door 2 is not unlocked, and B cannot enter the restricted area 4.

As described above, according to the present embodiment, in addition to the effects of the systems shown in FIGS. 1 and 2, a special passage for the luggage holder is not required, and special management for the luggage holder is also omitted. In addition to the above, it is possible to configure an access control system that can grasp the luggage brought in and out of the person, as well as taking out the luggage.

FIG. 5 is a top view of an access control system with a person detection function according to a third embodiment of the present invention. FIG. 6 is a diagram showing an electrical connection relationship of the components in FIG.

The entry / exit management system with the person detection function shown in FIGS. 5 and 6 is the same as the entry / exit management system with the person detection function shown in FIGS. 3 and 4 except for the following. That is, in the access control system with the one-person detection function shown in FIGS. 5 and 6, the same scale (weight measuring means) is used as the luggage weight measuring means and the total weight measuring means.
7 is switched and used. In order to notify this switching to the second control unit 8 ″, the push-button switch 11 is used in the access control system with the one-person detection function shown in FIGS.
Is provided. That is, the access control system with the one-person detection function shown in FIGS. 5 and 6 has the push button switch 11 for switching the scale 7 to the measurement of the weight of the luggage when the person who goes in and out carries the luggage. doing. The above is different from the access control system with the one-person detection function shown in FIGS.

The operation when the system shown in FIGS. 5 and 6 is used by a person A who does not have a luggage does not use the push button switch 11 for measuring the weight of the luggage. Is the same as

The operation when the system shown in FIGS. 5 and 6 is used by the person C carrying the luggage is as follows. When a person C trying to enter the restricted area 4 stands in front of the first door 5, the first door 5 opens, but C carrying the luggage has the first door 5 and the second door 2. The user pushes the push button switch 11 before entering the space 6 sandwiched by the, and puts the luggage on the scale 7. When the weight of the luggage is measured, the value is stored in the second control unit 8 ″. C is a space between the first door 5 and the second door 2 which takes the luggage whose measurement has been completed. When the first door 5 is closed and C reads the card data into the card reader 1, the first control unit 3 'determines whether the card data of C can enter the restricted area 4. At the same time, the weight of C carrying the luggage is measured together with the luggage by the scale 7, and the second controller 8 ″ calculates the value obtained by subtracting the weight of the luggage from the measured weight of C and the weight of the luggage. If the absolute value of the difference between the two is less than or equal to the predetermined value, it is determined that there is only one person C in the space.

The card data of C can enter the restricted area 4, and the value obtained by subtracting the weight of the baggage from the weight of the baggage and the weight of the baggage measured by the scale 7 and the previously measured C If the absolute value of the difference from the weight of the door 2 is equal to or less than the predetermined value, the above-mentioned access permission signal is sent to the electric lock of the door 2 as an unlock command. The electric lock is unlocked and C can open the door and enter the restricted area 4. If C enters the space 6 between the first door 5 and the second door 2 without measuring the weight of the baggage, the weight of C is measured by the amount of the baggage. Since the control unit 8 ″ determines that the person in the space 6 is not C alone, the access permission signal is not output, the second door 2 is not unlocked, and C cannot enter the restricted area 4.

Although an example of the present invention has been described in connection with a personal identification using an ID card, the personal identification method is not limited to this, and may use biometric features such as fingerprints, voice prints, and retinal patterns. A similar effect can be obtained by using a method such as inputting a different personal identification number for each individual.

In addition, by not displaying or disclosing the weights of persons who can enter and leave measured in advance, the weights of persons entering and leaving measured at the time of entering and leaving, and the weights of luggage, those who do not have permission are allowed to adjust the weight in advance and enter and leave Can be prevented.

The first and second control units may be constituted by one control means (for example, a microcomputer).

[0059]

As described above, according to the present invention, the weight of each person entering and exiting a specific area is measured and stored in advance, and the weight of each person entering and exiting the area is measured and stored. Compared to the weight of the same person, if the absolute value of the difference between them is less than or equal to a predetermined value, by determining that the person alone,
An access control system with a highly accurate one-person detection function can be obtained.

Further, according to the present invention, by having means for measuring the weight of the baggage carried by the person entering and leaving, the presence or absence of the person carrying the baggage can be easily grasped.
A high-performance, space-saving, and low-cost access control system with a human detection function that eliminates the need to set up a dedicated passage for luggage holders is obtained. That is, according to the present invention, it is possible to configure a highly reliable access control system that has a simple configuration, does not require a special passage for the luggage holder, and can also check in and out of the load.

Further, according to the present invention, the means for measuring the weight of the person entering and exiting and the means for measuring the weight of the luggage carried by the person entering and exiting are the same, and these are switched and used. Further, a space-saving access control system with a person detection function can be obtained.

[Brief description of the drawings]

FIG. 1 is a top view of an access control system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 1;

FIG. 3 is a top view of an access control system according to a second embodiment of the present invention.

FIG. 4 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 3;

FIG. 5 is a top view of an access control system according to a third embodiment of the present invention.

FIG. 6 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 5;

FIG. 7 is a top view of a general access control system.

FIG. 8 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 7;

FIG. 9 is a top view of a conventional access control system.

FIG. 10 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Card reader 2 Door 3 '1st control part 4 Restricted area 5 Door 6 Space 7 Scale 8' 2nd control part 8 "2nd control part 10 Scale for measuring the weight of luggage 11 Push button switch

Claims (5)

[Claims] 1. detecting personal identification information of a person trying to enter and leave a specific area as detected personal identification information;
Determining whether the detected personal identification information is personal identification information of a person who can enter and exit the specific area, and if the detected personal identification information is personal identification information of a person who can enter and exit the specific area; Personal identification means (1, 3 ') for outputting personal identification information for identifying the person trying to enter or leave the specific area; a person connected to the personal identification means and capable of entering or leaving the specific area in advance The weight of the person is stored as a saved person weight, and the weight of the person trying to enter and exit the specific area is detected as a detected person weight, and the detected person weight and the individual Comparing the absolute value of the difference between the stored person weight and the stored person weight corresponding to the person specified by the personal identification information output from the identification means with a predetermined value; Less than a predetermined value Case, access control system, characterized in that said a person determination means determines that the person is a person to be out of the particular area (7,8') has. 2. The entry / exit management system according to claim 1, wherein the one person determination means is configured such that when the absolute value of the difference is equal to or less than the predetermined value, the person who tries to enter or leave the specific area is one person. An access control system, wherein the access control system is configured to output a one-person signal indicating that there is only one person trying to enter or leave the specific area as an access permission signal. 3. An access permitting means connected to the one-person determination means and permitting the person who wants to enter or leave the specific area to enter or leave the specific area only when receiving the access permission signal. The access control system according to claim 2, further comprising: 4. The access control system according to claim 1, wherein the one-person determination unit attempts to enter and exit the specific area when the person who wants to enter and exit the specific area has luggage. A luggage weight measuring means (10) for measuring the weight of the luggage carried by the person as a measured luggage weight; and the person trying to enter and leave the specific area and the person possessed by the person A total weight measuring means (7) for measuring a total weight of the luggage as a measured total weight, and connected to the personal identification means, the luggage weight measuring means, and the total weight measuring means, and The weight of a person who can enter and leave a specific area is the saved person weight,
By storing and subtracting the measured luggage weight from the measured total weight, the weight of the person trying to enter and exit the specific area is detected as the detected person weight, The absolute value of the difference between the detected person weight and the stored person weight stored corresponding to the person specified by the personal identification information output from the personal identification means is set to the predetermined value. And when the absolute value of the difference is equal to or less than the predetermined value, the control unit (8 ″) that determines that the person who wants to enter and exit the specific area is one, and outputs an access permission signal. , An access control system characterized by having. 5. The access control system according to claim 4, wherein said luggage weight measuring means and said total weight measuring means are:
An access control system, wherein the same weight measuring means (7) is switched and used.