JPH11213197A - Leaving/entering control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leaving/entering control system with high reliability to prevent illegal leaving/enterance by pretending to be a baggage by a person who is not allowed to leave/enter a section. SOLUTION: A leaving/entering control system is provided with personal identification means (1, 3') to detect that a person to leave/enter a section is a person having freedaccess to the section and to output information to specify the person, a baggage weight measuring means (10) to measure weight of the baggage carried by the person to leave/enter the section, a total weight measuring means (7) to measure the total weight of the person to leave/enter the section and the baggage carried by the person and a second control part 8". Thus, the weight of the person to leave/enter the section is defined by subtracting the measured weight of the baggage from the measured total weight, and when an absolute difference between the weight and the weight which is stored corresponding to the person specified by the information is equal to or less than a prescribed value, the number of the persons to leave/enter the section is judged as one and when slight fluctuation of weighing is detected by the baggage weight measuring means, a weighed object is judged not as the baggage but as the person.

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.

FIG. 11 is a top view of a further improved access control system with a person detection function. FIG.
FIG. 12 is a diagram showing an electrical connection relationship of the components in FIG.

11 and 12, 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. A space which is sandwiched between the second doors 2 and in which one person can enter, 1 is a card reader provided in the space 6, and 7 is provided on the floor of the space 6 to enter and exit. It is a scale for measuring the weight of a person.

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 the 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 trying 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.

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

A person entering and exiting 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 not more than a predetermined value, Is sent to the electric lock of the second door 2 as an unlock command, 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.

[0029]

As described with reference to FIGS. 11 and 12, a system for judging, by weight, that persons entering the restricted area are the same person is put into practical use. If you carry luggage, you can measure the weight of the luggage in advance and subtract the luggage weight from the weight of the person carrying the luggage to bring it into or out of the restricted area. Although systems have been devised for grasping the carry-out of goods, these do not have a means to determine whether or not what is weighed as luggage is really luggage, and only weight is used as an identification element of luggage. , A person who is not allowed to enter or leave a restricted area is weighed falsely as luggage and recognizes that a person is carrying in or out of the restricted area even if the person is allowed to enter or leave the restricted area Is, there is a drawback that it can not eliminate the illegal and out.

For this reason, it has been practiced to constantly monitor the state of entry and exit by using a television camera or the like, and to check for suspicious persons or suspicious actions. However, the cost of equipment increases, and There was a problem that the burden on security guards to monitor was large.

According to the present invention, a minute change in weighing, which originally hindered stable weighing of a person when weighing a person, is performed by checking whether the thing placed on the scale as a load is really a load or a person. It is an object of the present invention to provide a more accurate access control system by judging whether or not a person is false, thereby preventing a person from falsely entering or leaving a restricted area as a package.

That is, according to the present invention, a minute movement which a living thing always generates is detected as a change in weighing, and an object whose weight is measured as a load is a living thing such as a person or a load such as a load. By determining whether they are inanimate,
It is intended to prevent people from entering or leaving the restricted area without permission as if they were luggage.

[0033]

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 trying to enter and exit from the area, and the weight of luggage carried by the person trying to enter and exit the specific area was measured. The luggage weight measuring means (10) for measuring the luggage weight and the total weight of the person trying to enter and leave the specific area and the luggage carried by the person are measured as the measured total weight. total The weight of a person who is connected to the quantity measuring means (7), the personal identification means, the luggage weight measuring means, and the total weight measuring means, and which can enter and exit the specific area in advance, is stored as a 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 a detected person weight, and the detection is performed. The absolute value of the difference between the stored 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 compared with a predetermined value. A determination unit (8 ″) that determines that only one person attempts to enter or leave the specific area when the absolute value of the difference is equal to or less than the predetermined value. Luggage weight measurement The means has a function of detecting a minute weighing change, and the determining means determines that the weighed object is not a load when the baggage weight measuring means detects the fine weighing change. An access control system is obtained.

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 determining means determines that only one person attempts to enter and exit the specific area when the absolute value of the difference is equal to or less than the predetermined value, and enters and exits the specific area. It outputs a one-person signal indicating that the person to be tried is one person as an in / out permission signal, is connected to the determination means, and only tries to enter / exit the specific area only when receiving the in / out permission signal. An access control system is provided, further comprising access control means (2) for permitting the user to enter and exit the specific area.

According to the third aspect of the present invention, the above-mentioned first aspect is provided.
Alternatively, in the access control system according to the second aspect, the luggage weight measuring means is provided with a door (12) that can be controlled to open and close, and when the luggage weight measuring means detects a minute weighing change, the door is closed. , And the collection of the weighed object is not possible.

According to the fourth aspect of the present invention, the personal identification information of a person trying to enter or leave a specific area is detected as the detected personal identification information, and the detected personal identification information is stored in the specific area. It is determined whether or not the personal identification information of the person who can enter and exit, and when the detected personal identification information is the personal identification information of a person who can enter and exit the specific area, the person who tries to enter and exit the specific area Personal identification means (1, 3 ') for outputting personal identification information for identifying a person
Baggage weight measuring means for measuring the weight of the baggage carried by the person who wants to enter and leave the specific area as the measured package weight; and the person who wants to enter and leave the specific area and the person Is connected to the total weight of the luggage possessed by the user as the measured total weight, the total weight measuring means for measuring, the personal identification means, the luggage weight measuring means, and the total weight measuring means. The weight of a person who can enter and exit the specific area in advance is stored as a stored person weight, and the user will enter and exit the specific area by subtracting the measured luggage weight from the measured total weight. The weight of the person is detected as a detected person weight, and the detected person weight is compared with the person specified by the personal identification information output from the personal identification means. Comparing the absolute value of the difference between the stored person weight and a stored value with a predetermined value, and when the absolute value of the difference is equal to or less than the predetermined value, a person who tries to enter and leave the specific area An access control system having a determination means (8 ") for determining that the user is alone, wherein the same weight measurement means (7) is switched and used as the luggage weight measurement means and the total weight measurement means; The determining means determines that the weighed object is not a load when the same weight measuring means detects a minute weighing change while the same weight measuring means is used as the load weight measuring means. An access control system is obtained.

[0037]

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.

The access control system with the one-person detection function shown in FIGS. 1 and 2 is the same as that shown in FIG.
This is the same as the access control system with the one-person detection function shown in FIG.

First, the access control system with the one-person detection function shown in FIGS. 1 and 2 tries to get in and out of the restricted area 4 when a person who wants to enter and leave the restricted area 4 carries luggage. It has a scale (luggage weight measuring means) 10 for measuring the weight of the luggage, which measures the weight of the luggage carried by the person as the measured luggage weight.

The access control system with the one-person detection function shown in FIGS. 1 and 2 measures the total weight of the person trying to enter or leave the restricted area 4 and the luggage carried by the person. The scale 7 is used as a total weight measuring means for measuring the total weight obtained.

The scale (total weight measuring means) 7 has a minimum accuracy of weighing of one hundredth to several hundredths of the measured weight range.
Is set to This is because the apparent weight of a human always fluctuates minutely, and if the minimum accuracy of weighing is reduced, the measured weight always fluctuates.

On the other hand, a scale (luggage weight measuring means) 1
0 is set to be as small as possible within a range in which a change in weighing can be detected without being affected by ambient vibration or the like, and is usually several thousandths to several 10,000ths of the measured weight range.
It is as follows.

Thus, the scale (means for measuring the weight of luggage)
Reference numeral 10 is provided with a function of detecting a weighing change more minute than the weigher (total weight measuring means) 7.

Further, the access control system with the one-person detection function shown in FIGS. 1 and 2 stores the weight of a person who can enter and exit the restricted area 4 in advance as a stored person weight. By subtracting the measured luggage weight on the scale 10 for measuring the luggage weight from the measured total weight, the weight of the person trying to enter or leave the restricted area 4 is determined by the detected person. The weight is detected as the weight, and the detected weight is stored in correspondence with 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 determined human 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, one person who tries to enter or leave the restricted area 4 Is a logical "1" To signal (i.e., the person signal)
Is output as an in / out permission signal.

In addition, when the scale (baggage weight measuring means) 10 detects a minute weighing change, the second control unit 8 ″ determines that the weighed object is not a baggage but a person, and Does not output the second signal (that is, the one-person signal) even when the absolute value of is less than or equal to the predetermined value.

The above is different from the access control system with a person detection function shown in FIGS. 11 and 12.

The operation when the system shown in FIGS. 1 and 2 is used by a person A who does not carry a load does not use the scale 10 for measuring the weight of the load.
This is similar to the case of 2.

The operation when the system shown in FIGS. 1 and 2 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. The scale 10 measures the weight of the load and monitors whether there is a minute increase or decrease in the weight of the load. If the loaded luggage is inanimate, naturally the luggage weight is stable and the weighing does not change. On the other hand, if the thing placed as the luggage is not really a luggage but a human, it is necessary to always balance the posture, so that a minute fluctuation occurs in the weighing. This minute change in weighing occurs not only when standing, but also when sitting or in a box or the like.
When the second control unit 8 ″ can confirm that there is no minute change in the weighing of the luggage being measured by the scale 10, the second control unit 8 ″ determines that the loaded object is the luggage and visually or audibly notifies the end of the measurement. The second control unit 8 "determines that the object being measured is not a luggage and issues an alarm when a minute change in the weighing of the object placed on the balance 10 is recognized.

The object placed on the scale 10 is determined to be luggage,
When the weight is measured, the value is stored in the second control unit 8 ″. B takes the luggage whose measurement has been completed, and takes a space 6 sandwiched 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. judge.
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.

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, an 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. it can. If B enters the space 6 between the first door 5 and the second door 2 without measuring the weight of the luggage,
Since the weight of B is measured as much as the amount of the baggage, the second control unit 8 ″ determines that the person in the space 6 is not B alone, so that the access permission signal is not output, and the second door 2 ″ is not output. Does not unlock and B cannot enter restricted zone 4.

As described above, according to the present embodiment, in addition to the effects of the systems shown in FIGS. 11 and 12, 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. 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, as shown in FIGS. 3 and 4, the scale 12 for measuring the weight of the luggage is provided with a door 12 having an opening / closing control means such as an electric lock. The measurement shall be started after closing, and if the luggage is judged to be a living thing such as a person, the door 12 is kept in the closed state to make it impossible for the luggage holder to collect the weighed material. Then, it becomes easy to capture an organism such as a person measured by the scale 10 that measures the weight of the luggage, and an effect of preventing recurrence of fraud can be obtained.

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. 1 and 2 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 of the system shown in FIGS. 5 and 6 when a person A who does not carry a load uses the push button switch 11 for measuring the weight of the load. 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 who wants 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 5. Before entering the space 6 sandwiched by the door 2, the push button switch 11 is pressed to switch the scale 7 to the weight measurement of the load, and then the load is placed on the scale 7.

The scale 7 measures the weight of the luggage,
Monitor the weighing of the luggage for small changes. If the loaded luggage is inanimate, of course, the weight of the luggage is stable and the weighing does not change. On the other hand, if the thing placed as the luggage is not really a luggage but a human, it is necessary to always balance the posture, so that a minute fluctuation occurs in the weighing. This minute change in weighing occurs not only when standing, but also when sitting or in a box or the like. When the second control unit 8 ″ can confirm that there is no minute change in the weighing of the luggage measured by the scale 7, it determines that the loaded object is the luggage, and visually or audibly notifies the end of the measurement. Notifying C by means of means and switching from the state of measuring the weight of the luggage to the state of measuring the weight of the person entering and exiting.

When a minute change in the weighing of the object placed on the balance 7 is recognized, the second control unit 8 "determines that the object being measured is not a luggage and issues an alarm.

The object placed on the scale 7 is determined to be luggage,
When the weight is measured, the value is stored in the second control unit 8 ″. C takes the luggage whose measurement has been completed and places it in the space between the first door 5 and the second door 2. When the first door 5 closes and C causes the card reader 1 to read the card data, the first control unit 3 ′ determines whether the C card data can enter the restricted area 4. judge.
At the same time, the weight of C with the luggage is measured together with the luggage by the scale 7 and the measured C by the second control unit 8 ″.
And the value obtained by subtracting the weight of the baggage from the weight of the baggage and the weight of the baggage is compared with the weight of C previously measured. Is determined.

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 second control unit 8 ″ outputs an access permission signal to the electric lock of the door 2 as an unlock command, and the electric lock is unlocked. , C can open the door and enter the restricted area 4. C does not measure the weight of the load and the first door 5 and the second
When the vehicle enters the space 6 sandwiched between the door 2 and the second control unit 8 ″, the weight of C is measured by the amount of the luggage.
Determines that there is not one person C in the space 6, no access permission signal is output, the second door is not unlocked, and C
Cannot enter restricted area 4.

Although an example of the present invention has been described in connection with a personal identification using an ID card, the method of personal identification 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.

Further, means capable of controlling opening and closing of an electric lock or the like is provided in the first door 5, and when the scale 7 measures luggage, the measurement is started after the first door 5 is closed. ,
If it is determined that the luggage is a creature such as a person, the first door 5 is kept closed and if the luggage holder cannot collect the luggage, the weight of the luggage is measured. An organism such as a person measured by the balance 7 can be easily captured, and an effect of preventing recurrence of fraud can be obtained.

In addition, by not displaying or disclosing the weight of the person who can enter and leave beforehand, the weight of the person who enters and leaves measured at the time of entering and leaving, and the weight of the luggage, it is possible to adjust the weight in advance to allow unauthorized persons to enter and leave. Can be prevented.

As described above, according to the present invention, with a simple structure, a special passage for a luggage holder is not required, and the ingress and egress of luggage can be grasped. It is possible to configure a highly reliable access control system in which false access cannot be made.

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

[0069]

As described above, according to the present invention, a small change in weighing, which originally hindered stable weighing when weighing a person, can be weighed as luggage. By judging whether a person is really a package or a person is a fake luggage, it is possible to prevent a person from being imitated as a luggage and illegally entering or leaving the restricted area, and to obtain a more accurate access control system.

[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;

FIG. 11 is a top view of the improved access control system.

FIG. 12 is a diagram showing an electrical connection relationship between components of the access control system of FIG. 11;

[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 9 AND circuit 10 Scale for measuring the weight of luggage 11 Push Button switch

Claims (4)

[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; and the weight of the luggage carried by the person trying to enter or leave the specific area. As a measured luggage weight, a luggage weight measuring means (10) for measuring, and a total weight of the person trying to enter and leave the specific area and the luggage carried by the person is measured. A total weight measuring means (7) for measuring the weight, and a person connected to the personal identification means, the luggage weight measuring means, and the total weight measuring means and capable of entering and leaving the specific area in advance. The amount, as a person weight that has been saved,
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 a detected person weight, and the detection is performed. The absolute value of the difference between the stored 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 compared with a predetermined value. A determination unit (8 ″) that determines that only one person attempts to enter or leave the specific area when the absolute value of the difference is equal to or less than the predetermined value. The baggage weight measuring unit has a function of detecting a minute weighing change, and the determining unit determines that the weighed object is not a baggage when the baggage weight measuring unit detects the minute weighing change. Features Access control system that. 2. The access control system according to claim 1, wherein the determination unit determines that only one person tries to enter or leave the specific area when the absolute value of the difference is equal to or less than the predetermined value. It is to output a one-person signal indicating that the person who is going to enter and leave the specific area is one person as an access permission signal, and is connected to the determination means and only when the access permission signal is received. An access control system, further comprising access permission means (2) for permitting the person who wants to enter and exit the specific area to enter and exit the specific area. 3. The access control system according to claim 1, wherein the luggage weight measuring means is capable of controlling opening and closing.
An access control system, wherein when the luggage weight measuring means detects a minute change in weighing, the door is kept in a closed state to make it impossible to collect the weighed material. 4. 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; and the weight of the luggage carried by the person trying to enter or leave the specific area. The, as a measured luggage weight, a luggage weight measuring means to measure, the total weight of the person trying to enter and leave the specific area and the luggage possessed by the person, as a measured total weight, The total weight measuring means to be measured, and the personal identification means, the luggage weight measuring means, and the weight of a person who is connected to the total weight measuring means and which can enter and exit the specific area in advance are stored. As a person weight was,
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 a detected person weight, and the detection is performed. The absolute value of the difference between the stored 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 compared with a predetermined value. A determination unit (8 ″) that determines that only one person attempts to enter or leave the specific area when the absolute value of the difference is equal to or less than the predetermined value. The same weight measuring means (7) is switched and used as the luggage weight measuring means and the total weight measuring means, and the judging means makes the same when the same weight measuring means is used as the luggage weight measuring means. Access control system that when the weight measuring means detects a fine weighing fluctuations weighed materials are characterized by determined not to be a load.