JPH0264765A - Unjust entering detector for entering/leaving room control system - Google Patents

Abstract

PURPOSE:To attain strict entering/leaving room control by detecting the existance of an unjust room enterer based on the detected value of a movement detecting means to detect the movement of a room-enterer/leaver. CONSTITUTION:An automatic door 1b is provided at an entrance/exit 1a of a security protecting room 1, a lead sensor 2 is provided on a floor face in the room 1 inside/outside of the door 1b, and an infrared sensor 3 is provided at the upwardness of the sensor 2. The respective detecting values of the sensor 2 and the sensor 3 are inputted to a controller 4. The controller 4 reads the load detecting value of the sensor 2 and judges the existance of an unjust room enterer by the load fluctuation of the load detecting value when a door open control signal from a microprocessor unit is inputted. Besides, when it is judged that no unjust room enterer exists based on the load detecting value, it is judged whether the detecting value of the sensor 3 is at high level or not, and when it is at high level, it is judged that the unjust room enterer exists.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an unauthorized room entry detection device for a large room exit management system that manages entry and exit into a room that requires confidentiality, such as a computer room.

[Prior Art] Conventional access control systems include placing personal identification devices at the entrances and exits of rooms that require confidentiality, such as computer rooms, and connecting these personal identification devices with door opening/closing devices at the entrances and exits. In conjunction, the door opening/closing device is opened to allow entry only to persons whose identification information has been registered in advance in the personal identification device. Here, the identification method of the personal identification device uses magnetic data recorded on the rD card, fingerprints, retina, and other identification data unique to the human body.

[Problem to be solved by the invention]

However, in the above-mentioned conventional large-scale exit management system, when permission is given to a person entering the room and the entrance/exit is opened by the door opening/closing device, the number of people entering the room is not managed. When there is an unauthorized person entering the room along with another person entering the room, when there is an unauthorized person entering the room after an authorized person enters the room and before the door closes, and furthermore, until the door closes after the authorized person leaves the room. If there is an unauthorized person who enters the room during the period, there is no function to detect them, and even if advanced identification using identification information such as retina and fingerprints is used to manage the person entering the room, the effectiveness of this method is There was an unresolved issue of halving it.

Therefore, the present invention has been made by focusing on the unresolved problems of the conventional example, and aims to provide an unauthorized room entry detection device for a room entry/exit control system that is capable of detecting the entry of unauthorized persons. The purpose is

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a personal identification device disposed near the entrance/exit of a room that requires entry/exit control, and a personal identification device read by the personal identification device. In an entry/exit control system that compares identification information with registered identification information registered in advance and opens an entrance/exit when the two match, the system detects the movement of a person entering/exiting the room placed near the entrance/exit. It is characterized by comprising a movement detection means and an unauthorized entry detection means for detecting the presence or absence of an unauthorized person entering the room based on the detection value of the movement detection means.

Here, as the movement detecting means, it is preferable to use a load sensor that detects a change in load due to the movement of a person entering or leaving the room, an infrared sensor that detects a plurality of persons entering or leaving the room, a photoelectric switch, or the like.

[Effect]

In this invention, for example, a load sensor detects a load change due to the movement of a person entering and leaving the room, and based on this detected load value, the unauthorized entry detection means determines whether the load change is due to the movement of one person entering or leaving the room. It detects whether the load change is due to the movement of multiple people entering and leaving the room, or whether it is due to a load change due to the movement of one person entering and leaving the room, and detects whether the load change is due to the movement of one person entering and leaving the room. It is detected that there is an unauthorized person entering the room when there is a load change other than the above.

In addition, when multiple people enter and leave the room at the same time, the load sensor detects the load change as one person's load change, so in this case, the OR condition with the infrared sensor that detects multiple people entering and leaving the room is Unauthorized entries and exits can be detected by

〔Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a security room, and an automatic door 1b that opens and closes automatically is installed at the entrance and exit 1a of the security room 1, and the load changes on the floor inside the security room 1 of the automatic door 1b. A load sensor 2 is installed to detect the load sensor 2, and an infrared sensor 3 is installed on the ceiling above the load sensor 2.

Here, the load sensor 2 has a configuration in which a flat plate 2a is supported at three points by load cells 2b disposed on the floor, and each load cell 2b outputs a load detection value corresponding to the load applied to the flat plate 2a. Further, the infrared sensor 3 detects infrared rays and outputs, for example, a high level detection signal when the amount of infrared rays reaches 2 Å or more.

Then, each detection value of the load sensor 2 and the infrared sensor 3 is manually inputted to a controller 4 as an unauthorized room entry detection means. This controller 4 is composed of, for example, a microcomputer, and includes a microprocessor unit 7, which will be described later.
When a door opening control signal is input from the load sensor 2, the load detection value of the load sensor 2 is read, and the presence or absence of an unauthorized person is determined based on the load fluctuation of the load detection value. In other words, if the load detection value once goes to a high level, returns to a low level, and then goes back to a high level again before the door close control signal is input, it is determined that there is an unauthorized person entering the room. , and when the time from when the load detection value once becomes high level to when it returns to low level exceeds a preset predetermined time, it is determined that there is an unauthorized person in the room and outputs a door close control signal. At the same time, an alarm signal is output to the control center and the microprocessor unit to complete the process, and when it is determined that there is no unauthorized person entering the room based on the detected load value,
It is determined whether the detection value of the infrared sensor 3 is at a high level or not. If it is at a high level, it is determined that there is an unauthorized person entering the room and a door closing control signal is output, and an alarm signal is sent to the control center and the microcontroller. When the detected value of the infrared sensor 3 is at a low level, it is determined that there is no unauthorized person entering the room, and the unauthorized person processing is repeated thereafter.

On the other hand, a personal identification device 5 for controlling entry is provided outside the automatic door 1b, and a personal identification device 6 for managing leaving the room is provided on the opposite side of the load sensor 2 from the automatic door 1b.

As shown in FIG. 2, each of these personal identification devices 5 and 6 has a microprocessor unit 7, in which a retina and a fingerprint are registered in advance together with a predetermined password. .

an identification information storage unit 8 and an identification information reading unit 9 in which registered personal identification information unique to the human body such as handprint pattern data is stored;
Equipment control input/output unit 1) and PBX that control a door opening/closing device 10 that opens and closes the entrance door of a room that requires confidentiality.
A network interface unit 13 is connected to an in-building network 12 composed of , LAN, and the like.

The microprocessor unit 7 reads personal identification information such as a visitor's retina or fingerprint using an identification information reading section 9. When the read information is input to the microprocessor unit 7, the read information and the identification information storage section 8 are stored in the microprocessor unit 7. The equipment control input/output unit 1) sequentially compares the registered personal identification information stored in the storage device to determine whether or not there is any registered identification information that loses. outputs a door open control signal to open the door opening/closing device 10, and outputs a door closing control signal to close the door opening/closing device 10 after a predetermined time has elapsed, and when there is no matching registered identification information, This information is output to the identification information reading unit 9 for display, and the read information at that time is stored in the non-registered identification information storage area of the identification information storage unit 8.

The identification information reading section 9 reads fingerprints, Ff! The system is equipped with a sensor 9a for reading identification information such as a 4-layer film, and a password input device 9b composed of, for example, a numeric keypad for inputting a password unique to a registered person.

As shown in FIG. 2, the in-building network 12 is connected to a central management device 14 that centrally manages the controller 4 and each personal identification device 5.6.

This central management device 14 has a central processing unit 15, and an interactive display 16, a management data storage unit 17, and a network interface unit 18 connected to the in-building network 12 are connected to the central processing unit 15. The processing device 15 stores management data such as the person entering the room, the time of entering the room, the person leaving the room, and the time of leaving the room transmitted from the personal identification device 5.6 in the management data storage unit 17, and also stores the unauthorized entry warning signal from the controller 4. When received, the room number of the corresponding security room and message information indicating that there is an unauthorized person in the room are sent to the interactive display 16 and displayed, and abnormal state release information from the interactive display device 16 is inputted. Then, an identification restart signal is sent to each personal identification device 5.6 to restart personal identification.

Next, the operation of the above embodiment will be explained with reference to FIG. 4 showing the processing procedure of the controller 4 and FIG. 3 showing the processing procedure of the personal identification device 5.6.

First, when granting permission to enter security room 1,
First, each individual identification device 5.6 inputs a unique PIN number for the person permitted to enter the room by operating the PIN input device 9b, and pattern data such as the retina, fingerprint, and handprint of the person permitted to enter the room is inputted using the sensor 9a. , these are stored in the identification information storage section 8.

In this way, after the storage of the registered identification information in the identification information storage unit 8 of the personal identification device 5.6 is completed, the registered person must enter the password on the personal identification device 5 in order to enter the security room 1. When the user operates the device 9b to enter a password and identification information such as a fingerprint or retina, the microprocessor unit 7 executes the main program shown in FIG. It is determined whether or not the unauthorized entry alarm signal from the controller 4 has been input, and when the unauthorized entry alarm signal has been input, the process is directly terminated, and when the unauthorized entry alarm signal has not been input, the process proceeds to step (3). , determines whether or not the PIN number of the registered person has been inputted from the identification information reading unit 9, and if the PIN number has not been inputted, waits until the PIN number is inputted, and when the PIN number is inputted, steps are performed. ■
After the input identification information read by the identification information reading section 9 is read, the process moves to step (2).

In this step ■, it is determined whether or not a PIN corresponding to the input PIN is registered, and if the corresponding PIN does not exist, the process moves to step ■ and the input identification information read in step The information is stored as non-registered identification information in the non-registered identification information storage area formed in the identification information storage section 8, and then the process proceeds to step (2), where an alarm signal is sent to the central control device 14 to issue an alarm.

On the other hand, if there is a PIN number that corresponds to the determination result in step ■, the process moves to step ■ and the identification information storage unit 8
The registered identification information corresponding to the password is read out from the PIN number, and then the process proceeds to step (3), where the input identification information and the registered identification information are compared and verified to determine whether or not they match. At this time, if the re-identification information does not match, the process moves to step (2) and the input identification information is stored in the non-registered identification information storage area, and if the re-identification information matches, step (2) is performed.
and transmits a predetermined door opening control signal to the equipment control input/output unit 1.
) to the door opening/closing device 10, thereby controlling the door opening/closing device IO to the open state. Therefore, a registered person can enter the security room 1. Next, proceed to step [phase] to determine whether a predetermined time has elapsed, that is, a sufficient time for the person entering the security room 1, and if the predetermined time has not yet elapsed, the predetermined time has elapsed. When a predetermined period of time has elapsed, the process moves to step 0 and sends a predetermined door closing control signal to the door opening/closing device 10 via the equipment control input/output unit 1), thereby turning the door opening/closing device 10 into a closed state. control, and then return to step ■.

On the other hand, the controller 4 constantly executes the unauthorized room entry detection process shown in FIG. That is, in step (3) it is determined whether or not the door open control signal has been input, and if the door open control signal has not been input, the process waits until the door open control signal is input, and then the door open control signal is input. Then, the process goes to step 0, where the detected values from each load cell 2b of the load sensor 2 are read, and then the process goes to step 0, where the average value of each load detected value is calculated, and this is used as the load detected value R. do.

Next, proceeding to step [share], it is determined whether or not the control flag F1 representing the entering state in which the load detection value R has changed from "°0" to a certain value by the person entering the room is "1".
When the control flag Fl is "O", the process moves to step (2).

In this step ■, it is determined whether the load detection value R is "O" or not. If R≠0, it is determined that the person entering the room is in the room, and the process moves to step [phase]. The timer is set to a time T that is sufficient for the load to pass through the load sensor 2, and then the process moves to step 0, where the control flag F1 representing the room entry state is set to 1, and then the process returns to step ◎. .

Further, when the determination result in step [phase] is R=0, the process moves to step [phase], and it is determined whether or not a door closing control signal has been input from the personal identification device 5 or 6, and the door is closed. When the control signal is not input, the step ◎
When the door close control signal is inputted, it is determined that the room has not entered the room, the process moves to step [phase], and the control flag F is set.
1 to "O", move to step [phase], reset the timer, then move to step ■, send a non-entering notification indicating that no one has entered the room to the central control device 14, and then step ■ Return to

On the other hand, the determination result of step [phase] indicates that the control flag F1 is
“If it is set to 1°°, the process moves to step @ and the control flag F is set to indicate that the person entering the room has completed.
2 is set to "1°", and if the control flag F2 is reset to On, it is determined that the user is entering the room, and the process proceeds to step 0.

In this step 0, it is determined whether or not the load detection value R is "0".This determination is to determine whether or not the person entering the room has passed the load sensor 2 after entering the room. R≠
When the value is 0, it is determined that the person entering the room is passing through the load sensor 2, and the process moves to step [phase], and it is determined whether or not the timer has timed up. If the timer has not timed up, the process proceeds to step 0. When the timer returns and the time has expired, there is a possibility that an unauthorized person has entered the room, so the process moves to step @ and outputs a door close control signal to the door opening/closing device 10, and then moves to step [phase] to check if there is an unauthorized person who has entered the room. After sending a warning signal indicating the presence of unauthorized entry to the personal identification device 5.6 and the central control device 14, the process ends.

Moreover, when the determination result of step 0 is R=O,
It is determined that the person entering the room has passed the load sensor 2, and the process moves to step @, where the control flag F2 indicating that the person entering the room has passed the load sensor 2 is set to "1°", and then the process returns to step ◎.

Furthermore, the determination result of step @ indicates that the control flag F2 is “
If it is set to 1'°, the process moves to step [phase] and it is determined whether or not the detected load value R is °"O".This determination is made when the person entering the room After passing through, it is determined whether or not there is an unauthorized person entering the room, and when R=O, the process moves to step 0 and it is determined whether or not a door close control signal has been input, and the door close control signal is input. When is not input, the process returns to step ◎, and when the door close control signal is input, the process proceeds to step @, where the control flags F1 and F2 are reset to "0",
Next, proceed to step @, reset the timer, and then proceed to step (2) to determine whether or not the infrared sensor 3 is in the on state, and when the infrared sensor 3 is in the off state, return to step (2), When the infrared sensor 3 detects a plurality of persons entering the room and is in the ON state, it is determined that an unauthorized person has entered the room, and the process proceeds to the step [phase].

On the other hand, when the determination result in step [phase] is R+O, it is determined that an unauthorized person has entered the room following an authorized person, and the process moves to step @.

Therefore, as shown in FIG. 5(a), if a person enters the security room 1 after registering personal identification information, he or she enters the password and personal identification information into the personal identification device 5. As a result, the door opening/closing device 10 is controlled to be in the open state and the automatic door 1b is opened, and in this state, in the process shown in FIG.
Since the detected value of the load sensor 2 is zero until the person enters the room, the process returns to step ◎ and repeats the process of step 0 and step ■, and then at time t.
When the person entering the room enters the security room 1 and steps on the load sensor 2 at step 2, each load cell 2 of the load sensor 2
When the detection value corresponding to the weight of the person entering the room is output from b, a timer is set and the control flag F1 is set to "1" (step [phase], 0). Therefore, in the subsequent processing, It moves from step [phase] to step @ to step 0, and since the person entering the room is passing through the load sensor 2, it returns to step [phase] via step [phase], and from step ◎ to [phase], @ ~Repeat the process of [phase].

Then, the time t before the timer expires when the person enters the room.
, the load detection value R of the load sensor 2 becomes zero, and step 0 is reached.
From there, the process moves to step @, the control flag F2 is set to "°1", and thereafter, the process moves from step @ to step [phase] to determine whether or not there is an unauthorized person who enters the room following a regular person. When there is no unauthorized person entering the room, the load detection value R of the load sensor 2 continues to be zero, so when the door close control signal is output at time t4 and the automatic door 1b closes, the control flags Fl and F2 are set. “Reset to 0°゛ and also reset the timer step @, @),
Next, since the infrared sensor 3 is in the off state, the process returns to step (2) and waits until the next person enters the room.

In addition, as shown in FIG. 5(b), if an unauthorized person enters the room between the time when an authorized person passes through the load sensor 2 and enters the room until the time t4 when the automatic door 1b closes, ,
In the process shown in FIG. 4, the transition from step @ to step [phase] occurs at time t3 when the authorized person passes the load sensor 2, so in this state, the unauthorized person steps on the load sensor 2 at time t. Then, the load detection value R corresponding to the weight of the unauthorized person is obtained from the load sensor 2, so step [
The automatic door 1b
is closed, and the process moves to step [phase] where an unauthorized entry alarm signal is sent to the central control device 14 and the personal identification device 5.6, so that the large room exit process in each personal identification device 5.6 is completed. As a result, opening and closing of the door is prohibited, and the presence of an unauthorized person can be detected by the central control device 14. Therefore, in this state, entering the security room 1 and leaving the security room 1 are prohibited, so the central management device 1
The administrator monitoring in step 4 goes to the corresponding security room 1 and opens the automatic door ib by entering a predetermined password from, for example, a locked password input device attached to the personal identification device 5. By checking who has entered the security room 1, it is possible to determine who has entered the room illegally.

When the identification of the person who has entered the room illegally is completed, the central control center is notified by telephone or the like, and the interactive display 16 of the central control device 14 releases the processing completion state of each personal identification device 5.6. , the controller 4 is released from the processing completion state and returns to the normal room entry/exit management state.

Furthermore, as shown in FIG. 5(C), when an unauthorized person enters the room following the authorized person at time t2' while the authorized person is passing through the load sensor 2, this unauthorized person enters the room. When I entered the room t! ', the load detection value R of the load sensor 2 increases, and then at the time t when the regular occupant passes the load sensor 2, the load detection value R of the load sensor 2 decreases.
At this time, the load detection value R will not become zero, and therefore the processing from step 0 to [phase] in the processing in Fig. 4 will be repeated, and if the timer times up during that time, the process will change from step [phase] to step [phase]. Move to @,
The same unauthorized room entry detection process as above will be executed.

Furthermore, an unauthorized person enters the room at the same time as a legitimate person who is permitted to enter the room, and one of the persons who enters the room
If the time it takes to pass through is longer than the predetermined time, the same process as above is executed.

Furthermore, as shown in Fig. 5 fd), although it is rare, if an unauthorized person enters the room at the same time as an authorized person who is authorized to enter the room, and 1) both of them pass the load sensor 2 at the same time, the load The load detection value R of the sensor 2 is a large value corresponding to two people, but when the load sensor 2 in FIG. By turning on, it is possible to move to step [phase] and detect the entry of an unauthorized person into the room.

In addition, when a person who has entered the security room 1 leaves the room, he or she enters the PIN number and personal identification information into the personal identification device 6, and the entered PIN number and personal identification information are registered. When the password and personal identification information match, the automatic door 1b is controlled to open,
Even if a person who enters the room illegally enters the security room 1 at this time, the controller 4 executes the same process as when entering the room. can be detected.

As described above, according to the above embodiment, it is possible to reliably detect the entry of an unauthorized person based on the load detection value of the load sensor, and to detect the unauthorized person entering the room, which cannot be detected based on the load detection value of the load sensor. and the unauthorized person enter the room at the same time.
When the person passes through the room, the infrared sensor 3 is turned on, and unauthorized entry can be detected, thereby further improving the accuracy of detecting the unauthorized person.

In the above embodiment, a case has been described in which the load sensor 2 and the infrared sensor 3 are used as the movement detection means, but the invention is not limited to this, and instead of the load sensor 2, a photoelectric switch, an image sensor, etc. Movement detection means can be applied.

In addition, in the above embodiment, a case has been described in which personal identification devices 5.6 using identification information unique to the human body such as a retina, a fingerprint, and a handprint are arranged for entering and exiting the room, but the present invention is not limited to this. It is also possible to apply a personal identification device that uses a simpler PIN number as identification information instead of a personal identification number, and to use identification information unique to the human body for entering the room and identification information using a PIN number for exiting the room. You can also do it.

Furthermore, in the above embodiment, a case has been described in which personal identification information is registered in advance in the personal identification devices 5.6 for entering the room and for leaving the room, but the registration of personal identification information in both the personal identification devices 5.6 is concentrated. The management device 14 may perform the registration all at once, and the registered personal identification information may be transmitted to and stored in the personal identification devices 5 and 6, respectively.

Furthermore, in the above embodiment, the controller 4,
Although the case has been described in which the personal identification device 5.6 and the central management device 10 are connected via the in-building network 12, the present invention is not limited to this, and the connection may be made using a dedicated line.

〔Effect of the invention〕

As explained above, according to the present invention, the movement detection means is arranged inside the entrance/exit to detect the movement of a person when entering or leaving the room, and the unauthorized entry is detected based on the detected value of this movement detection means. Since unauthorized persons other than those who enter and leave the room are detected using the method, it is possible to reliably detect unauthorized persons entering the room, and it is possible to achieve the effect of performing strict entry/exit control. .

In addition, by applying a load sensor as a movement detection means, it is possible to reliably detect the movement of people entering and leaving the room.
Furthermore, by combining it with an infrared sensor, it is possible to more reliably detect unauthorized persons entering the room.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a block diagram showing an embodiment of the invention, Fig. 3 is a flowchart showing an example of the processing procedure of the personal identification device, and Fig. 4 is a block diagram showing an embodiment of the invention. FIG. 5 is a full 2-chart showing an example of the processing procedure of the controller, and is an output waveform diagram of the load sensor to provide a detailed explanation of the present invention. In the figure, 1 is a security room, 1b is an automatic door, 2 is a load sensor, 3 is an infrared sensor, 4 is a controller (unauthorized entry/exit detection means), 5.6 is a personal identification device, 7 is a microprocessor unit, and 8 is a 9 is an identification information storage unit, 9 is an identification information reading unit, IO is a door opening/closing device, 12 is an in-building network,
14 is a central management device. Figure 1

Claims (3)

[Claims] (1) A personal identification device is installed near the entrance/exit of a room that requires entry/exit control, and the personal identification information read by the personal identification device is compared with the registered identification information registered in advance to ensure that the two match. In a room entry/exit control system that opens an entrance/exit when an entrance/exit occurs, a movement detection means is provided near the entrance/exit to detect movement of a person entering/exiting the room, and an unauthorized person enters the room based on a detection value of the movement detection means. An unauthorized room entry detection device for a room entry/exit control system, comprising: unauthorized room entry detection means for detecting the presence or absence of an unauthorized room entry/exit control system. (2) The unauthorized room entry detection device for the room entry/exit management system according to claim (1), wherein the movement detection means is a load sensor that detects the load of the person entering and leaving the room. (3) Fraud in the room entry/exit management system according to claim (1), wherein the movement detection means includes a load sensor that detects the load of a person entering and leaving the room, and an infrared sensor that detects a plurality of people entering and leaving the room. Entry detection device.