JP4042918B1 - Electronic lock system - Google Patents

Abstract

An electronic lock system capable of easily changing identification information set in a key.
An electronic key includes a key body 11 made of an insulator, conductive screws 12a to 12l made of a conductive material, a conductive path 13, and cylindrical conductive members 14a to 14f. A plurality of screw holes 11 b are provided on the side surface of the stem portion 11 a of the key body 11. The conductive screws 12a to 12l are inserted into all the screw holes 11b, whereas the conductive members 14a to 14f are inserted only into the predetermined screw holes 11b. The presence or absence of the conductive members identifies the electronic key. Information is composed. The electronic lock acquires the identification information by checking the conductive state of each screw hole of the electronic key by the control circuit, and performs the authentication check against the identification information of the authentication key having the same structure as the electronic key.
[Selection] Figure 2

Description

  The present invention relates to an electronic lock system that authenticates a key by electronic verification.

Conventionally, various lock systems for office buildings and ordinary houses have been provided. For example, Patent Document 1 below discloses a magnet key of a type in which a magnet is embedded in a side edge of a stem portion of a key and the key is authenticated by the embedded pattern.
Japanese Patent Application Laid-Open No. 11-200679

In Patent Document 2 below, a light transmitting part and a light blocking part are provided on the key side, and a light source and a light receiving sensor are provided on the lock side to optically authenticate the key pattern. Discloses a light selection key and a light selection keyhole for locking and unlocking the lock.
JP-A-6-240935

In Patent Document 3 below, ID data is stored in a non-volatile memory in an electronic key, and an electronic key of a type that authenticates a key by communicating with an electromagnetic wave between the electric lock and the electronic key, and A battery-driven electric lock using the same is disclosed.
Japanese Patent Application Laid-Open No. 2006-200258

  However, the keys disclosed in Patent Documents 1 to 3 do not allow the user to change the ID or pattern for authentication. For example, in Patent Documents 1 and 2, if a pattern is determined at the time of manufacturing a key, the pattern cannot be easily changed thereafter. Therefore, if the user loses the key, the entire system consisting of the key and lock needs to be exchanged. Even if the user is changed due to moving, etc., the key will be kept for safety. It is necessary to replace both the lock and the lock, which increases the cost.

  On the other hand, with the electronic key disclosed in Patent Document 3, it is theoretically possible to change the ID by rewriting the ID data, but a dedicated device is required for rewriting, and the operation is also difficult. Difficult and costly. Therefore, a resident of an apartment house such as an apartment cannot easily change the ID when the key is lost.

  The present invention has been made to solve such problems, and an object of the present invention is to provide an electronic lock system that can easily change identification information set in a key.

In order to solve the above-described problems, an electronic lock according to the present invention includes a key body provided with a plurality of holes in an insertion portion to be inserted into the lock side, and a hole that is detachably inserted into the hole. a conductor to a conductive state, a first conductor forming the identification information being arranged in a predetermined hole of said plurality of holes, smaller than the depth of the hole, removable into the hole A second conductor disposed in a hole in which the first conductor is not disposed among the plurality of holes, wherein the hole remains in a non-conductive state even when inserted into the hole, and the hole An electronic device for authenticating identification information of an electronic key comprising: a conductive path for checking a conductive state of the electronic key, comprising a conductive path having one end exposed to the outside and the other end contacting the inner end of the hole. in tablets, the plurality of holes in order to check the conductivity state of said holes A plurality of conductor terminals provided at the facing position, a conductor path terminal provided at a position in contact with one end of the conductive path, and holding the identification information for authentication and having the same structure as the electronic key An authentication electronic key, a cylinder in which a terminal for obtaining identification information of the authentication electronic key is installed, a cylinder for inserting the authentication electronic key, the conductive path terminal, and the conductors The identification information of the inserted electronic key is obtained by checking whether or not the terminal is in a conductive state, and whether or not the obtained identification information matches the identification information of the authentication electronic key And a control circuit for determining the above.

The electronic lock system according to the present invention includes a key body provided with a plurality of holes in an insertion portion to be inserted into the lock side, and a conductive body that detachably inserts into the holes so that the holes are in a conductive state. A first conductor that forms identification information by being disposed in a predetermined hole of the plurality of holes, and is shorter than the depth of the hole and detachably inserted into the hole A conductor that keeps the hole in a non-conductive state, the second conductor disposed in the hole in which the first conductor is not disposed, and the conductive state of the hole is checked. An electronic key having a conductive path having one end exposed to the outside and another end in contact with the inner end of the hole, and an electronic key for authenticating identification information of the electronic key a tablet, the double to check the conductivity state of said holes A plurality of conductor terminals provided at positions facing the holes, a conductive path terminal provided at a position in contact with one end of the conductive path, the electronic key holding identification information for authentication, and An electronic key for authentication having the same structure, a cylinder in which a terminal for obtaining identification information of the electronic key for authentication is installed, a cylinder for inserting the electronic key for authentication, the terminal for the conductive path, and the Whether the identification information of the inserted electronic key is acquired by checking whether or not each conductor terminal is in a conductive state, and whether the acquired identification information matches the identification information of the authentication electronic key. And an electronic lock having a control circuit for determining whether or not.

  According to the electronic lock system of the present invention, it is possible to provide an electronic lock system that can easily change the identification information of the electronic key, and to improve security.

  Hereinafter, an electronic lock system according to an embodiment of the present invention will be described in detail. The electronic lock system according to this embodiment includes an electronic key and an electronic lock. 1A and 1B are diagrams showing an electronic key according to the present embodiment, in which FIG. 1A shows a top view and FIG. 1B shows a side view. FIG. 2 shows a cross-sectional view taken along the line AA in FIG.

  As shown in FIGS. 1 and 2, the electronic key 10 includes a key body 11 made of an insulator, conductive screws 12a to 12l made of a conductive material, a conductive path 13, and cylindrical conductive members 14a to 14f. ing. The main body 11 has the same shape as a normal key, and a space for forming the conductive path 13 is formed at the center of the stem portion 11a inserted into the cylinder on the lock side. This space is exposed to the outside at the front end of the main body 11 and one side surface near the front end.

  Further, six screw holes (female screws) 11b for inserting the conductive screw 12 and the conductive member 14 are formed at predetermined intervals on both side surfaces of the stem portion 11a of the main body 11. The screw hole 11b communicates with a space in which the conductive path 13 is formed. In addition, the screw groove of the screw hole 11b is formed only in the surface side half of the hole, that is, only the portion into which the conductive screw 12 is inserted.

  FIG. 3 is a perspective view of the conductive screw (male screw) 12 and the conductive member 14 inserted into the screw hole 11 b of the main body 11. The conductive screws 12a to 12l are formed of a conductive material in a columnar shape, and screw grooves are formed on the side surfaces. Further, a negative groove is formed on the upper surface of the conductive screw 12, and the conductive screw 12 can be easily turned with a flathead screwdriver or the like.

  The conductive members 14a to 14f are also formed in a cylindrical shape from a conductive material. However, no thread groove is formed in the conductive member 14, and the diameter thereof is smaller than that of the conductive screw 12. When the heights of the conductive screw 12 and the conductive member 14 are added, the length is exactly the same as the length of the screw hole 11b. When inserted into the screw hole 11, the conductive member 14 is first inserted inside, and then the conductive screw 12 is screwed and fixed to the outside.

  Further, as shown in FIG. 2, the conductive screws 12a to 12l are inserted into all twelve screw holes 11b, whereas the conductive members 14a to 14f are inserted only into the predetermined screw holes 11b. Yes. In the present embodiment, three conductive members 14 are alternately inserted into the screw holes 11b at the top and bottom. The conductive path 13 and the conductive screw 12 are in a conductive state at a place where the conductive member 14 is inserted, and the conductive path 13 and the conductive screw 12 are in an insulated state at a place where the conductive member 14 is not inserted. Many authentication patterns, which are identification information of the electronic key 10, can be created by combining the presence or absence of 14. That is, the conductive member 14 functions as a conductor for determining the identification information of the electronic key.

  In the present embodiment, since there are twelve screw holes 11b on both sides, 1024 authentication patterns can be created. Of course, since the number of screw holes 11b can be changed as appropriate, in order to increase the number of authentication patterns in order to increase security, the number of screw holes 11b may be further increased.

  The conductive path 13 is made of a conductive material, and is filled in a space extending into the stem portion 11 a of the main body 11 of the electronic key 10. The conductive path 13 is in contact with the inner ends of all the screw holes 11b and comes into contact with the conductive member 14 inserted into the screw holes 11b. Further, at the tip of the stem portion 11a of the main body 11, the conductive path 13 has a tip exposed portion 13b exposed to the outside, and a tip side exposed portion 13a exposed on the side surface near the tip of the stem portion 11a. When the electronic key 10 is inserted into an electronic lock cylinder, which will be described later, the exposed portions 13a and 13b come into contact with the terminals on the lock side.

  Next, the configuration of the electronic lock 20 of the electronic lock system according to the present embodiment will be described with reference to FIG. FIG. 4 is a diagram schematically showing the configuration of the electronic lock 20. As shown in the figure, the electronic lock 20 has a cylinder 21, a control circuit 22, a wiring 25, a driving means 26, an authentication key 30, an authentication key cylinder 31, and an authentication key terminal 32.

  The cylinder 21 is disposed at a position where the user can insert the electronic key 10 into the cylinder from the outside of the door, and is attached to, for example, an outdoor knob of the door. In the cylinder 21, conductive screw terminals 23a to 23l for contacting the conductive screw 12 of the inserted electronic key 10 and conductive path terminals 24a to 24c for contacting the exposed portions 13a and 13b of the conductive path 13 are provided. Is installed.

  The authentication key 30 has the same configuration as the electronic key 10, and the user creates the electronic key 10 and the authentication key 30 so as to have the same authentication pattern. The authentication key cylinder 31 is installed inside the door, and the user needs to always insert the authentication key 30 into the authentication key cylinder 31. The configuration of the authentication key cylinder 31 is the same as that of the cylinder 21, and the authentication key cylinder 31 is provided with a terminal 32 for contacting the conductive screw and the conductive path of the authentication key 30.

  The control circuit 22 is connected to the terminals 23 and 24 of the cylinder 21 and the terminal 32 of the authentication key cylinder 31 by the wiring 25, and is supplied with power from a power source (not shown) (for example, AC power source), and sequentially reaches a predetermined wiring. 25 has a function of checking whether or not the authentication pattern of the electronic key 10 and the authentication pattern of the authentication key 30 are completely the same.

  Specifically, first, it is checked which of the conductive path terminal 24b and the terminal 24a or 24c is in a conductive state. As described above, since the tip side surface exposed portion 13a of the conductive path 13 is exposed only on one side surface, which of the conductive path terminals 24a or 24c is in contact with the tip side surface exposed portion 13a and is conductive. By checking this, it can be confirmed which side of the electronic key 10 is inserted upward. Thus, in this embodiment, since the direction of the electronic key 10 can be confirmed by the tip side surface exposed portion 13a, it can be used as a reversible type key, and an authentication check is performed regardless of which is inserted upward. Is possible.

  Subsequently, the control circuit 22 sequentially checks which one is in a conductive state between the conductive path terminal 24b and each conductive screw terminal 23a to 23l, so that which screw hole 11b is conductive. Check if it is in a state. That is, the presence or absence of the conductive member 14 is checked, and the authentication pattern of the electronic key 10 is recognized and acquired.

  The control circuit 22 similarly recognizes the authentication pattern of the authentication key 30 and checks whether or not the authentication pattern of the electronic key 10 and the authentication pattern of the authentication key 30 completely match. If they match, the control circuit 22 sends a signal for unlocking the lock. In the present embodiment, a drive signal is transmitted to the drive means 26, and the drive means 26 is driven to unlock the electronic lock 10 (not shown). For example, the drive means 26 is locked in the locking hole of the door frame, and the dead bolt in the locked state is moved in the unlocking direction to be in the unlocked state. As the driving unit 26, an appropriate driving unit such as an electromagnetic driving unit or an electric motor may be adopted as appropriate.

  Further, the control circuit 22 according to the present embodiment stores the management authentication pattern in the internal memory, and if the master key has the management authentication pattern, the control circuit 22 is an electronic key whose authentication pattern does not match the authentication key 20. Even if it exists, it is comprised so that unlocking operation | movement may be performed. Thus, if the master key can be used, it is convenient for managing apartments.

  Such a function of the control circuit 22 is realized by an arithmetic device in the control circuit 22 executing a program stored in a memory in the control circuit 22.

  The electronic lock system according to the present embodiment has been described above. Next, the usage mode of the electronic lock system will be described. First, the user arbitrarily sets an authentication pattern that is identification information of the electronic key 10. That is, after the conductive member 14 is inserted into the desired screw hole 11 b, the conductive screw 12 is screwed in, and the conductive screw 12 is screwed into the other screw hole 11 b without the conductive member 14 being inserted into the electronic key 10. Incorporate the desired authentication pattern.

  Next, the user similarly creates an authentication key 30 having the same authentication pattern as the created electronic key 10, that is, a copy of the electronic key 10. When the authentication key 30 is inserted into the authentication key cylinder 31 installed inside the door, the setting of the electronic lock system is completed.

  When unlocking the electronic lock system, the electronic key 10 is inserted into the cylinder 21 from the outside of the door. At this time, since the electronic key 10 is a reversible key, either one may be inserted upward. When the electronic key 10 is inserted, the control circuit 22 checks the authentication pattern. If the authentication pattern matches, the drive means 26 is driven to unlock the lock.

  As described above, the electronic lock system according to the present embodiment has been described in detail. However, according to the electronic key 10 according to the present embodiment, the conductive member 14 can be easily inserted and removed by removing the conductive screw 12 using a screwdriver. It is possible to easily change the authentication pattern which is the identification information of the electronic key 10. Therefore, if the authentication pattern is changed periodically, the security can be greatly improved.

  In particular, conventional ordinary keys, magnet keys, etc. cannot be used to make a matching key by themselves or change the key identification information, and it has been necessary to request a specialized supplier. With an electronic key, it is possible to easily create a key and change identification information in a short time. Therefore, even when the electronic key is lost, security can be ensured in a short time by immediately changing the identification information (authentication pattern) on the lock side.

  In addition, even if the occupant changes in a rental apartment, etc., with this embodiment, it is not necessary to replace both the key and the lock as in the past, and it is only necessary to change the authentication pattern of the electronic key and the authentication key. Therefore, the cost advantage is great.

  Moreover, since the conductive screw 12 is screwed into all the screw holes 11b on the side surface of the stem portion of the electronic key 10 and the authentication pattern is specified by the presence or absence of the internal conductive member 14, just looking at the electronic key from the outside, You can't know the authentication pattern and you can rest assured in terms of security.

  In this embodiment, since the identification pattern of the electronic key 10 is checked using the authentication key 30 that is the same key, the authentication key is similarly changed when the identification pattern of the electronic key 10 is changed. The identification information for authentication on the electronic lock side can be easily changed simply by changing the 30 identification patterns. In particular, it is convenient for a person who is unfamiliar with the operation of an electronic device, such as an elderly person, without having to perform complicated operations such as storing and registering the changed identification pattern in the memory on the lock side.

(Modification 1)
Subsequently, Modification 1 of the present embodiment will be described. FIG. 5 is a diagram showing a schematic configuration of the electronic key 40 according to the first modification. As shown in the figure, the electronic key according to the first modification has one corner missing at the end of the stem portion of the main body. The cylinder on the lock side is also configured so that the electronic key can be inserted only in the case of the above. Other configurations are the same as those in the above embodiment.

  Therefore, in the first modification, as in the above-described embodiment, the tip side surface exposed portion 13a of the conductive path 13 and the conductive path terminals 24a and 24c for recognizing the insertion direction of the electronic key are not required, and the device configuration Can be simplified.

(Modification 2)
Then, the modification 2 of this embodiment is demonstrated. FIG. 6 is a diagram showing a schematic configuration of the electronic key 50 according to the second modification. As shown in the figure, the electronic key 50 according to the modified example 2 has a rechargeable battery 52 built in a main body 51. The electronic key 50 includes a key case 53 for inserting and carrying the main body 51. The key case 54 is used for charging the secondary battery 52 by inserting the electronic key 50 into a cradle (not shown). A charging terminal 54 is provided. The other configuration of the electronic key 50 is the same as that of the electronic key according to the above embodiment.

  Therefore, the secondary battery 52 can be charged by placing the electronic key 50 in a cradle or the like connected to an AC power source with the main body 51 inserted into the key case 53.

  Further, the electronic lock system according to the second modification is configured such that each member on the lock side operates using the secondary battery 52 as a drive source. That is, electricity is supplied from the secondary battery 52 for an authentication check by the control circuit when the electronic key 50 is inserted into the cylinder and for driving of the driving means when unlocking.

  Therefore, according to the second modification, in addition to the operations and effects obtained by the above embodiment, the power source for driving the electronic lock system is built in the electronic key 50 side, so the power source is secured on the lock side. The structure for doing is unnecessary. For this reason, even if an electronic lock system is installed later on the door of an existing building, there is no need to significantly modify the building side in order to secure the power supply on the lock side, and the electronic lock is used as the door. All you need to do is install it, and you can reduce costs and shorten the construction period.

  Although the electronic lock system according to the present embodiment and the modification thereof has been described in detail above, the embodiment of the present invention is not limited to the above-described embodiment and the like. It goes without saying that various modifications are possible without departing from the spirit of the present invention.

  For example, in the electronic key according to the present embodiment, the conductive screws and conductive members for forming the authentication pattern are arranged on both side surfaces of the stem portion, but may be arranged only on one side surface, It may be provided on the upper and lower surfaces instead of the side surfaces. Of course, the shape of the electronic key is not a normal key shape, but may be another shape such as a rod as long as it can hold the conductor constituting the authentication pattern.

  In this embodiment, the key body is made of an insulator, and the conductive path is installed to energize the conductor with the lock side. However, the key body may be made of a conductive material. In this case, in order to make the conductor and the conductive path as the authentication pattern function, it is necessary to cover the necessary portion with an insulator.

  In this embodiment, a conductive screw having a length that is half of the screw hole is screwed into the outside of all the screw holes, and a conductive member that is also half the length of the screw hole is inserted inside the predetermined screw hole. Although the authentication pattern is formed by the presence or absence of the conductive member, the structure of the conductor that determines whether or not each screw hole is in a conductive state is, of course, a combination of the conductive screw and the conductive member. It is not limited.

  For example, two types of long and short conductive screws may be used as the conductor for forming the identification information. Specifically, two types of a long conductive screw having the same length as the depth of the screw hole and a short conductive screw having a length that is half the depth of the screw hole are prepared. In this case, the screw hole into which the long conductive screw is inserted is in a conductive state, and the hole into which the short conductive screw is inserted is in a nonconductive state, so an authentication pattern as identification information is formed by the arrangement pattern of the long conductive screw. can do.

  Further, in the present embodiment, the conductor for forming the authentication pattern is configured to be screwed into the screw hole in order to ensure fixation, but the bonding is not performed in the hole not engraved with the screw groove. You may make it insert by fixing with an agent etc. However, also in this case, it is necessary to have a configuration in which the conductor can be inserted and removed so that the authentication pattern can be changed.

  In this embodiment, the electronic lock side has an authentication key having the same identification information as the electronic key. However, the electronic key identification information is stored as electronic data in the electronic lock side memory. May be. In this case, it is necessary to store the changed authentication pattern in the memory on the electronic lock side every time the user changes the authentication pattern of the electronic key.

FIG. 1 is a diagram illustrating a configuration of an electronic key according to the present embodiment. FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a perspective view of the conductive screw and the conductive member according to the present embodiment. FIG. 4 is a diagram schematically showing the configuration of the electronic lock according to the present embodiment. FIG. 5 is a diagram illustrating a configuration of an electronic key according to the first modification of the present embodiment. FIG. 6 is a diagram illustrating a configuration of an electronic key according to the second modification of the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electronic key 11 Key body 12 Conductive screw 13 Conductive path 14 Conductive member 20 Electronic lock 21 Cylinder 22 Control circuit 23 Conductive screw terminal 24 Conductive path terminal 25 Wiring 26 Drive means 30 Authentication key 31 Authentication key cylinder 32 Terminal

Claims (2)

A key body provided with a plurality of holes in an insertion portion to be inserted into the lock side, and a conductor that detachably inserts into the holes, thereby bringing the holes into a conductive state, of the plurality of holes A first conductor that forms identification information by being disposed in a predetermined hole, and a conductor that is shorter than the depth of the hole and that keeps the hole non-conductive even if it is detachably inserted into the hole. A second conductor disposed in a hole in which the first conductor is not disposed among the plurality of holes, and a conductive path for checking a conductive state of the hole, and In an electronic lock for authenticating identification information of an electronic key, comprising an exposed one end and a conductive path having another end in contact with the inner end of the hole,
A plurality of conductor terminals provided at positions facing the plurality of holes in order to check the conductive state of the holes;
A conductive path terminal provided at a position in contact with one end of the conductive path;
An authentication electronic key that holds identification information for authentication and has the same structure as the electronic key;
A cylinder for inserting the authentication electronic key, in which a terminal for obtaining identification information of the authentication electronic key is installed, and
The identification information of the inserted electronic key is acquired by checking whether or not the conductive path terminal and each conductor terminal are in a conductive state, and the acquired identification information is the authentication electronic A control circuit for determining whether or not it matches the identification information of the key;
An electronic lock comprising: A key body provided with a plurality of holes in an insertion portion to be inserted into the lock side, and a conductor that detachably inserts into the hole, thereby bringing the hole into a conductive state, of the plurality of holes A first conductor that forms identification information by being placed in a predetermined hole, and a conductor that is shorter than the depth of the hole and that keeps the hole non-conductive even if it is detachably inserted into the hole. A second conductor disposed in a hole in which the first conductor is not disposed among the plurality of holes, and a conductive path for checking a conductive state of the hole, and An electronic key having an exposed one end and a conductive path having the other end contacting the inner end of the hole;
An electronic lock for authenticating identification information of the electronic key, wherein a plurality of conductor terminals provided at positions facing the plurality of holes in order to check a conductive state of the holes, and the conductive path A terminal for a conductive path provided at a position in contact with one end of the terminal, an authentication electronic key that holds the identification information for authentication and has the same structure as the electronic key, and acquires the identification information of the authentication electronic key Inserted by checking whether there is a conductive state between a cylinder for inserting the authentication electronic key, and a terminal for the authentication path, and a terminal for the conductive path and the terminal for each conductor. And an electronic lock having a control circuit for determining whether or not the acquired identification information matches the identification information of the authentication electronic key,
An electronic lock system comprising:

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