JPH09328938A - Reading and unlock device for non-contact type information source - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the security level of a facility by providing an unlock device, which checks the information of eye of a user measured in the non- contact condition with the personal discrimination information of eye of the user stored in a non-contact type IC card and with the proper information related to the IC card of the user so as to judge the truth of false of user. SOLUTION: A judging circuit 57 checks a non-contact type IC card 5 having a memory 35 storing the personal discrimination information, which is formed of the information of eye related to the retina or the iris of a user and the ID number and the coded proper information, with the real information signal, which is obtained by processing the information of the eye of the user really measured in the non-contact condition with an image processing unit 56, and with the proper information for checking justification of the IC card 5 previously stored in a main memory device 51 so as to judge the truth or false of a user. In case of YES, a central control device 7 outputs the unlock signal to an electric lock 2. Truth of user can be rigorously judged by utilizing two non- contact type information sources.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading and unlocking device for a contactless information source. The present invention is particularly used in connection with electric locks attached to doors of buildings where security is required, such as residential condominiums, office buildings, control rooms or laboratories of companies and public facilities.

[0002]

2. Description of the Related Art Conventionally, in order to enhance the security of residential condominiums, office buildings, various facilities, etc., a key information reading / unlocking device using key information and a security device using card record information have been proposed. .

An example of the former key information reading and unlocking device is disclosed in Japanese Patent Laid-Open No. 1-203574. The disclosed unlocking device includes a detecting device for detecting that a key having a plurality of notched grooves in the longitudinal direction is completely inserted into a key hole of a lock, and a detecting device when the detecting device detects complete insertion of the key. And a key information detection element for detecting the shape of the groove of the key and outputting the key information signal as a key information signal to the control device.

However, this type of key information reading and unlocking device requires maintenance because the key is completely inserted into the key hole of the lock.
Further, there is a problem that anyone can unlock the locking device by obtaining a regular key.

Further, the latter type of security device utilizing the information recorded on the card has the advantages that various information can be easily recorded on the card itself and the security effect can be enhanced, but the card is a contact type card. (For example, a magnetic card is inserted into the card slot of the device.) Therefore, it has the same drawbacks as the former, and it is not always suitable for places where security is required (research facilities, management facilities, etc.). There was a problem.

[0006]

SUMMARY OF THE INVENTION A first object of the present invention is to provide a contactless information source capable of strictly judging the authenticity of a user and therefore adapted to a place where security is particularly required. It is to provide a reading and unlocking device. A second object of the present invention is to eliminate the enormous increase in storage capacity of the storage device on the side of the central control device, and to easily identify the individual (memory of the IC card) as necessary.
Can be changed. Further, a third object of the present invention is to be able to determine the authenticity of a user even if the conditions of the user's eyes in the time zone of the day slightly change. Further, a third object of the present invention is to fully utilize the indirect advantages of the non-contact type information source (the unlocking operation is simple, the device does not become dirty, the maintenance is unnecessary, etc.).

[0007]

A reading / unlocking device of a non-contact type information source according to the present invention includes a non-contact type IC card 5 having a memory 35 in which personal identification information on the eyes 10 of a user is stored, and An information communication device 6 fixedly provided on a tangible object such as a building wall W, a door 1 or the like so that information can be communicated with the non-contact type IC card 5 via radio waves, and also fixedly provided on the tangible object, In addition, while accepting the eye information detection device 9 that actually measures the information of the eyes of the user 8 in a non-contact state, the measurement information of the eye information detection device 9 side and the personal identification information of the information communication device 6 side, A central control unit 7 that is electrically connected to a storage unit 50 that stores valid information about an IC card 5 of a user in advance, and the central control unit 7 that is electrically connected to the actual measurement information and the personal identification information. ,
A determination circuit 57 that determines the authenticity of the user by matching three pieces of the legitimate information, and a determination circuit 57 that is provided on the door 1 of the building and that is based on the determination of “affirmation” of the determination circuit. An electric lock 2 which is unlocked by an unlocking signal.

In the above arrangement, the personal identification information regarding the user's eyes 10 is 1 for the user's 8 retina or / and iris.
It is characterized in that the characteristics measured for each of a plurality of time zones of the day and the minimum allowable correlation coefficient corresponding thereto are encrypted.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention shown in the drawings will be described in the case of unlocking a locking device in a control room.

First, FIGS. 1 and 2 are schematic views showing an example of a mode of use of the present invention. Reference numeral 1 denotes a door of a management room, a research room or the like of a building where security is required, and an electric lock 2 as an example of a locking device is appropriately provided on the door 1. The electric lock 2 has a drive source such as a solenoid and an operating rod that expands and contracts in a lock box 3. Due to the drive force of this drive source, the dead bolt 4 is engaged and disengaged with respect to the strike provided on the door frame (locking and unlocking). ) Do.

Next, 5 is a non-contact type card-shaped IC information medium, especially a wireless IC card using radio (hereinafter referred to as "I").
C card ". ). The IC card 5 is divided into a battery-equipped type having an internal battery and two types in which received radio waves are used as an energy source to generate electricity to activate the circuit of the card. In the present embodiment, the latter is used. I'm using it. The internal structure of this IC card 5 will be described later.

Next, 6 is an information communication device fixedly provided on the wall W (including the door frame) near the door 1, and a reader / writer is used as an example of this information communication device. . As an overall system, the information communication device 6 is electrically connected to the central control device 7 provided inside the control room on the one hand, and emits radio waves to the IC card 5 on the mobile body side outside the control room on the other hand.

By the way, generally, the information communication device 6 always emits a stronger radio wave to a specific effective area than the IC card 5. The IC card 5 is usually carried by the user 8 in the control room, and the IC guard itself stores electric power based on the electric energy source (radio waves) emitted from the information communication device 6, and this IC card 5 is stored. The data in the memory of the IC card is transmitted to the reader / writer based on the electric power.

Reference numeral 9 is fixedly provided on the wall W near the door 1 so as to be located below the information communication device 6, and an eye for detecting the information of the eye 10 of the user 8 in a non-contact state. It is an information detection device. This eye information detection device 9 has a lens 12 in a recess in the front wall of a camera type detection box 11, and
The detection sensor 13 is incorporated. Reference numeral 14 is a host controller arranged in the host center, and the host controller 14 is connected to the central controller 7 via a communication cable 15.

Next, FIG. 3 shows the information communication device 6 and the I
The structure of the C card 5 is schematically shown.

First, the internal structure of the information communication device 6 will be described. Reference numeral 20 is an IC card control unit that is electrically connected to the central control unit 7 via a connection cord. The IC card control unit 20 controls the information communication device 6 in a centralized manner. For example, a command for operating or stopping the main function of the IC card 5 and an electric power inside the capacitor of the IC card 5 are supplied. A plurality of command signals such as a command for causing or stopping use, a charging command, and a charging stop command are output to the IC card 5 side. The transmission unit 21 is I
It has a function of modulating a signal based on a command from the C card control unit 20 and transmitting the signal to the transmitting antenna 22.

The transmitting antenna 22 is a radio wave 24 having a large effective area with respect to the antenna 30 of the approaching IC card 5.
And the other receiving antenna 23 has a function of receiving a radio wave 31 having a small effective area emitted (response) from the antenna 30 of the IC card 5. The receiving section 25 has a function of demodulating a signal received by the receiving antenna 23 and transmitting the demodulated original signal to the IC card control section 20.

Next, the internal structure of the IC card 5 will be described. The IC card 5 uses the large radio wave 24 received by the antenna 30 as an energy source to cause the receiving unit 32 to generate electricity and operate the data control circuit 33, the transmitting unit 34, and the like. The IC card 5 has a CPU or a logic circuit, and internally has a memory 35 that is a main part of the present invention, and specific data (personal identification information) is stored in the memory 35 in advance.

Next, FIG. 4 schematically shows the memory 35 stored in the IC card 5. In this embodiment, the memory 35 encrypts the eye information relating to the retina or the iris of the user 8 measured in advance in this embodiment, and the justification information relating to the ID number and the priority, and the encrypted information has a plurality of levels. It is divided.

More specifically, the level-divided information will be described in more detail. Reference numeral 41 represents identification information level 1 in which the features of the retina or iris measured in the morning (around 7:30) and the minimum allowable correlation coefficient are encrypted. is there. Reference numeral 42 denotes an identification information level 2 obtained by encrypting the characteristics of the retina or the iris measured at noon (around 13:00) and the minimum allowable correlation coefficient. 43 is the evening (1
The identification information level 3 is obtained by encrypting the characteristics of the retina or the iris measured at about 8:00) and the minimum allowable correlation coefficient. Reference numeral 44 denotes identification information level 4 obtained by encrypting the characteristics of the retina or iris measured at night (around 22:00) and the minimum allowable correlation coefficient. Reference numeral 45 is an identification information level 5 in which the ID number assigned to each user 8 and the user's address, name, date of birth, gender, department name, specific word, etc. are encrypted.

These level-divided memories 35 are
It may be stored in the storage device 50 on the side of the central control device 7 in advance, but for reasons such as enormous storage capacity and facilitation of memory change, the IC of each user as in this embodiment is used.
It is desirable to store each in the memory 35 of the card 5. In this case, the information about the eyes 10 of the user 8 may be either the retina or the iris, or both the retina and the iris. In the present embodiment, as described above, the characteristics of the retina and iris of the user 8 measured for each of a plurality of time zones (morning, noon, evening, night) of the day, and determination of the minimum allowable correlation coefficient corresponding thereto, etc. Each standard is encrypted.

Next, FIG. 5 is a block diagram of the present invention. First, 50 is a storage device that is electrically connected to the central control device 7. The storage device 50 on the side of the central control device 7 includes a main storage device 51, a memory management unit 52, and a temporary storage device 53 in this embodiment. Have.

The main storage device 51 stores valid information for checking the validity of the IC card 5, for example, the same information as the identification information level 4 stored in the IC card 5. The determination circuit described later does not make a "affirmative" determination unless at least the information stored in the main storage device 51 and the identification information level 4 stored in the IC card 5 match. Input means 54 is electrically connected to the central control unit 7 so that necessary information can be input to the main storage unit 51.

Further, the memory management unit 52 has a function of managing the personal identification information of the IC card 5 sent via the information communication device 6 and the central control device 7, respectively.
The memory management unit 52 temporarily stores the data in the temporary storage device 53.

Reference numeral 55 is an identification information selection circuit electrically interposed between the central control unit 7 and the memory management unit 52 of the storage unit 50. This identification information selection circuit 55 is the memory management unit 5
The personal identification information managed by 2 and divided into levels 1, 2, 3, ... N is sequentially output to the central control unit 7 step by step.

An image processing unit 56 is electrically connected to the central control unit 7. The image processing unit 56 is the image information of the eyes 10 of the user 8 measured by the detection sensor of the eye information detection unit 9. Can be read by the central controller 7 and the determination circuit 5
7 is processed into a signal that can be discriminated.

The determination circuit 57 matches the personal identification information on the IC card 5 side, the eye 10 information on the user 8 side measured by the eye information detection device 9 and the legitimate information on the main storage device 51 side, respectively. , The authenticity of the user 8 is determined. In this case, the determination circuit 57 sequentially determines the identification information levels 1 to 5 that are output stepwise in the present embodiment, and at least the valid information stored in the main storage device 51 and the identification information level stored in the IC card 5 are detected. If 5 matches and any one of the identification information levels 1 to 4 matches, a positive determination is made.

In the above structure, when the user 8 carries the IC card 5 and reaches the effective area L1 of the transmitting antenna 22 of the information communication device 6 as shown in FIG. 1, as shown in FIG. The antenna 30 of the IC card 5 has a strong radio wave 24
To receive. Then, the receiver 32 of the IC card 5 uses the radio wave 24 as an energy source to generate electricity. Next, the data control circuit 33 sends the personal identification information stored in the memory 35 to the transmission unit 34. The transmitter 34 modulates the personal identification information, and the modulated return signal is transmitted via the antenna 30 to the radio wave 3
1 is sent to the receiving antenna 23 of the information communication device 6. In this way, information communication between the information communication device 6 and the IC card 5 is performed.

Next, the personal identification information received by the receiver 25 of the information communication device 6 is sent from the IC card controller 20 to the central controller 7. The personal identification information sent to the central controller 7 side immediately enters the memory management unit 52, and the memory management unit 52 temporarily stores the personal identification information in the temporary storage device 53.

Next, the user 8 looks into the lens 12 of the eye information detecting device 9 as shown in FIG. In this case, the eyes 9 of the user 8 and the lens 12 of the information detection device 9 are in a non-contact state. Therefore, when the detection sensor 13 of the eye information detection device 9 detects the user's eye 10, the eye information detection device 9 measures the retina and iris of the user 8. This measured actual measurement information is used as the image processing unit 56 on the central controller 7 side.
The image processing section 56 sends the image information about the retina and the iris to the central control unit 7 and the determination circuit 57.
Is processed into a signal that can be discriminated.

When the actual measurement information signal processed by the image processing section 56 is sent to the central control unit 7, the central control unit 7 issues a command to the storage unit 50 and the judgment circuit 57. Then
The main storage device 51, which has received the command from the central control device 7, sends valid information to the central control device 7, while the memory management unit 52
Extracts the personal identification information on the IC card side from the temporary storage device 53. Then, the personal identification information extracted by the memory management unit 52 is selected by the identification information selection circuit 55 in stages of the identification information levels 1 to 5 and sent to the central controller 7.

The determination circuit 57 determines the authenticity of the user 8 based on "three pieces of information". That is, the “three pieces of information” are the measured information signal processed by the image processing unit 56, the legitimate information such as the ID number and the personal name preset in the main storage device 51, and the personal identification on the IC card side. It is information (identification information levels 1 to 5).

As described above, the determination circuit 57 is configured to detect at least the valid information stored in the main storage device 51 and the IC card 5.
If it matches with the identification information level 5 stored in (identification of user's legitimacy), and if any one of the identification information levels 1 to 4 matches, a positive determination is made.

When the decision circuit 57 makes an affirmative decision that the room is "OK", an unlocking signal flows from the central control unit 7 to the electric lock 2, and as a result, the drive source of the electric lock 2 is activated and dead. The bolt 4 retracts into the lock box 3 (in the unlocked state).

[0035]

First Embodiment In the first embodiment described in the embodiment of the invention, the information communication device 6 may be an interrogator. The IC card 5 may be in the shape of, for example, a coin as long as the IC card 5 has a card shape that is downsized and thinned.

Next, the information regarding the eyes 10 of the user 8 is that the retina and the iris are displayed in a plurality of time zones of the day (morning, noon, evening, night).
The characteristics measured for each and the discrimination criteria such as the minimum allowable correlation coefficient corresponding to each are encrypted, but it is not necessary that the time is in plural time zones. For example, the characteristics measured in the morning and the minimum allowable corresponding The discrimination criteria such as the correlation coefficient may be encrypted. Further, the information communication device 6 and the eye information detection device 9 may be provided on the door 1 or other tangible objects other than the wall W of the management room.

Further, in the first embodiment of the present invention,
Since there is a problem when the memory 35 of the IC card 5 is altered, for example, a camera for photographing the IC card user 8 is arranged at an appropriate location outside the control room, and an image photographed by this camera is arranged. May be sent to the central control unit 7, and an image forming means electrically connected to the central control unit 7 may be used to appropriately record or check entry into the room.

[0038]

As is clear from the above description, the present invention has the following effects. (1) Since the two contactless information sources are used, the authenticity of the user can be strictly determined. Therefore,
Especially suitable for places where security is required. (2) Since the personal identification information of the user is stored in the memory on the IC card side, the enormous storage capacity of the storage device on the central control device side can be eliminated. Further, the personal identification information (memory of the IC card) can be easily changed if necessary. (3) According to the inventions of claims 2 to 5, the authenticity of the user can be discriminated even if the condition of the eyes of the user in the time zone of the day changes to some extent. . (4) Others The advantages of the non-contact type information source such as the easy unlocking operation, the device does not become dirty, and the maintenance is unnecessary can be utilized.

[Brief description of drawings]

1 to 5 are explanatory views illustrating an embodiment of the present invention.

FIG. 1 is a schematic explanatory view showing an embodiment of the present invention (particularly showing a relationship between an information communication device and an IC card).

FIG. 2 is a schematic explanatory view showing an embodiment of the invention of the present application (particularly showing a relationship between a user's eyes and an eye information detection device).

FIG. 3 is a schematic explanatory view showing the relationship between the information communication device of the present invention and an IC card.

FIG. 4 is a schematic explanatory diagram of a main part (memory of an IC card) of the present invention.

FIG. 5 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 ... Door, 2 ... Electric lock, 4 ... Deadbolt, 5 ... IC card, 6 ... Information communication device, W ... Wall, 7 ... Central control device,
8 ... User, 9 ... Eye information detection device, 10 ... Eye, 14 ...
Upper control device, 20 ... IC card control unit, 24, 31
... radio wave, 25, 32 ... receiver, 25, 32 ... receiver, 3
3 ... Data control circuit, 50 ... Storage device, 51 ... Main storage device, 52 ... Memory management unit, 53 ... Temporary storage device, 55 ...
Identification information selection circuit, 56 ... Image processing unit, 57 ... Judgment circuit, L1 ... Effective area.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G06K 19/07 G06K 19/00 H

Claims (6)

[Claims] 1. A non-contact type IC card 5 having a memory 35 in which personal identification information regarding the user's eyes 10 is stored.
An information communication device 6 fixedly provided on the tangible object so that information can be communicated with the non-contact type IC card 5 via radio waves; and, similarly, the information communication device 6 fixedly provided on the tangible object,
An eye information detecting device 9 for actually measuring the information of the eyes of the user 8 in a non-contact state, the measured information of the eye information detecting device 9 side, and the personal identification information of the information communication device 6 side are accepted and used in advance. Control device 7 electrically connected to a storage device 50 that stores legitimate information about an IC card 5 of a person
A determination circuit 5 that is electrically connected to the central control unit 7 and that compares the actual measurement information, the personal identification information, and the legitimate information to determine the authenticity of the user.
7 and an electric lock 2 which is provided on the door 1 of the building and which is unlocked by the unlock signal from the central control unit 7 based on the "affirmative" judgment of the judgment circuit. Reading and unlocking device. 2. The personal identification information regarding the user's eyes 10 according to claim 1, wherein the retina of the user 8 is measured at each of a plurality of time zones of the day, and a minimum permissible relationship corresponding thereto. A non-contact type information source reading / unlocking device characterized in that each number is encrypted. 3. The personal identification information of the user's eyes 10 according to claim 1, wherein the iris of the user 8 is measured at a plurality of time zones of the day, and the minimum allowable phase corresponding to the characteristic. A contactless information source reading / unlocking device characterized in that each relation number is encrypted. 4. The personal identification information of the user's eye 10 according to claim 1, wherein the retina and the iris of the user 8 are measured at a plurality of time zones in one day, and the minimum corresponding thereto. A non-contact type information source reading / unlocking device, wherein each allowable correlation coefficient is encrypted. 5. The personal identification information according to claim 1, wherein the personal identification information is divided into a plurality of identification information levels regarding the user's eyes 10 and justification information regarding the ID number, and is divided into levels. Characteristic non-contact type information source unlocking device. 6. The storage device 50 according to claim 1, wherein the storage device 50 is I
A main storage device 51 that stores valid information for checking the validity of the C card 5, and a memory that temporarily stores the personal identification information of the IC card 5 side sent from the information communication device 6 side in the temporary storage device 53. An identification information selection circuit 55 having a management unit 52 and electrically connected to the memory management unit 52 based on a command from the central control unit 7 is managed by the memory management unit 52 and has level divisions 1, 2, 3 ... A non-contact type information source reading / unlocking device which sequentially outputs the personal identification information thus obtained to the central control unit 7 step by step.